diff options
Diffstat (limited to 'mesalib/src/mesa/tnl')
27 files changed, 9465 insertions, 0 deletions
diff --git a/mesalib/src/mesa/tnl/descrip.mms b/mesalib/src/mesa/tnl/descrip.mms new file mode 100644 index 000000000..25dd1aecb --- /dev/null +++ b/mesalib/src/mesa/tnl/descrip.mms @@ -0,0 +1,68 @@ +# Makefile for core library for VMS +# contributed by Jouk Jansen joukj@hrem.nano.tudelft.nl +# Last revision : 39 September 2008 + +.first + define gl [---.include.gl] + define math [-.math] + define vbo [-.vbo] + define shader [-.shader] + define swrast [-.swrast] + define array_cache [-.array_cache] + define main [-.main] + define glapi [-.glapi] + define tnl [-.tnl] + +.include [---]mms-config. + +##### MACROS ##### + +VPATH = RCS + +INCDIR = [---.include],[-.main],[-.glapi],[-.shader],[-.shader.slang] +LIBDIR = [---.lib] +CFLAGS = /include=($(INCDIR),[])/define=(PTHREADS=1)/name=(as_is,short)/float=ieee/ieee=denorm + +SOURCES = t_context.c t_draw.c \ + t_pipeline.c t_vb_fog.c \ + t_vb_light.c t_vb_normals.c t_vb_points.c t_vb_program.c \ + t_vb_render.c t_vb_texgen.c t_vb_texmat.c t_vb_vertex.c \ + t_vertex.c t_rasterpos.c\ + t_vertex_generic.c t_vp_build.c + +OBJECTS = t_context.obj,t_draw.obj,\ + t_pipeline.obj,t_vb_fog.obj,t_vb_light.obj,t_vb_normals.obj,\ + t_vb_points.obj,t_vb_program.obj,t_vb_render.obj,t_vb_texgen.obj,\ + t_vb_texmat.obj,t_vb_vertex.obj,t_rasterpos.obj,\ + t_vertex.obj,t_vertex_generic.obj,\ + t_vp_build.obj + +##### RULES ##### + +VERSION=Mesa V3.4 + +##### TARGETS ##### +# Make the library +$(LIBDIR)$(GL_LIB) : $(OBJECTS) + @ library $(LIBDIR)$(GL_LIB) $(OBJECTS) + +clean : + purge + delete *.obj;* + +t_context.obj : t_context.c +t_draw.obj : t_draw.c +t_pipeline.obj : t_pipeline.c +t_vb_fog.obj : t_vb_fog.c +t_vb_light.obj : t_vb_light.c +t_vb_normals.obj : t_vb_normals.c +t_vb_points.obj : t_vb_points.c +t_vb_program.obj : t_vb_program.c +t_vb_render.obj : t_vb_render.c +t_vb_texgen.obj : t_vb_texgen.c +t_vb_texmat.obj : t_vb_texmat.c +t_vb_vertex.obj : t_vb_vertex.c +t_vertex.obj : t_vertex.c +t_vertex_generic.obj : t_vertex_generic.c +t_vp_build.obj : t_vp_build.c +t_rasterpos.obj : t_rasterpos.c diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c new file mode 100644 index 000000000..f2771cde0 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_context.c @@ -0,0 +1,231 @@ +/* + * Mesa 3-D graphics library + * Version: 7.2 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/imports.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/mtypes.h" +#include "main/light.h" +#include "math/m_translate.h" +#include "math/m_xform.h" + +#include "tnl.h" +#include "t_context.h" +#include "t_pipeline.h" +#include "t_vp_build.h" + +#include "vbo/vbo.h" + +GLboolean +_tnl_CreateContext( GLcontext *ctx ) +{ + TNLcontext *tnl; + + /* Create the TNLcontext structure + */ + ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) ); + + if (!tnl) { + return GL_FALSE; + } + + /* Initialize the VB. + */ + tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES; + + + /* Initialize tnl state. + */ + if (ctx->VertexProgram._MaintainTnlProgram) { + _tnl_install_pipeline( ctx, _tnl_vp_pipeline ); + } else { + _tnl_install_pipeline( ctx, _tnl_default_pipeline ); + } + + tnl->NeedNdcCoords = GL_TRUE; + tnl->AllowVertexFog = GL_TRUE; + tnl->AllowPixelFog = GL_TRUE; + + /* Set a few default values in the driver struct. + */ + tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; + tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; + tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables; + + tnl->nr_blocks = 0; + + /* plug in the VBO drawing function */ + vbo_set_draw_func(ctx, _tnl_vbo_draw_prims); + + _math_init_transformation(); + _math_init_translate(); + + return GL_TRUE; +} + + +void +_tnl_DestroyContext( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + + _tnl_destroy_pipeline( ctx ); + + FREE(tnl); + ctx->swtnl_context = NULL; +} + + +void +_tnl_InvalidateState( GLcontext *ctx, GLuint new_state ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + const struct gl_vertex_program *vp = ctx->VertexProgram._Current; + const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; + + if (new_state & (_NEW_HINT | _NEW_PROGRAM)) { + ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog); + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !fp; + } + + tnl->pipeline.new_state |= new_state; + + /* Calculate tnl->render_inputs. This bitmask indicates which vertex + * attributes need to be emitted to the rasterizer. + */ + if (ctx->Visual.rgbMode) { + GLuint i; + + RENDERINPUTS_ZERO( tnl->render_inputs_bitset ); + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS ); + + if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) { + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 ); + } + + if (NEED_SECONDARY_COLOR(ctx)) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 ); + + for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { + if (ctx->Texture._EnabledCoordUnits & (1 << i) || + (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) { + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) ); + } + } + } + else { + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS ); + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX ); + } + + if (ctx->Fog.Enabled) { + /* fixed-function fog */ + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG ); + } + else if (fp) { + if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) { + /* fragment program needs fog coord */ + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG ); + } + } + + if (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG ); + + if (ctx->RenderMode == GL_FEEDBACK) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 ); + + if (ctx->Point._Attenuated || + (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled)) + RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE ); + + /* check for varying vars which are written by the vertex program */ + if (vp) { + GLuint i; + for (i = 0; i < MAX_VARYING; i++) { + if (vp->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) { + RENDERINPUTS_SET(tnl->render_inputs_bitset, + _TNL_ATTRIB_GENERIC(i)); + } + } + } +} + + +void +_tnl_wakeup( GLcontext *ctx ) +{ + /* Assume we haven't been getting state updates either: + */ + _tnl_InvalidateState( ctx, ~0 ); + +#if 0 + if (ctx->Light.ColorMaterialEnabled) { + _mesa_update_color_material( ctx, + ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); + } +#endif +} + + + + +/** + * Drivers call this function to tell the TCL module whether or not + * it wants Normalized Device Coords (NDC) computed. I.e. whether + * we should "Divide-by-W". Software renders will want that. + */ +void +_tnl_need_projected_coords( GLcontext *ctx, GLboolean mode ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->NeedNdcCoords = mode; +} + +void +_tnl_allow_vertex_fog( GLcontext *ctx, GLboolean value ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->AllowVertexFog = value; + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; + +} + +void +_tnl_allow_pixel_fog( GLcontext *ctx, GLboolean value ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->AllowPixelFog = value; + tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST)) + || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current; +} + diff --git a/mesalib/src/mesa/tnl/t_context.h b/mesalib/src/mesa/tnl/t_context.h new file mode 100644 index 000000000..c19eb3df3 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_context.h @@ -0,0 +1,551 @@ +/* + * mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file t_context.h + * \brief TnL module datatypes and definitions. + * \author Keith Whitwell + */ + + +/** + * \mainpage The TNL-module + * + * TNL stands for "transform and lighting", i.e. this module implements + * a pipeline that receives as input a buffer of vertices and does all + * necessary transformations (rotations, clipping, vertex shader etc.) + * and passes then the output to the rasterizer. + * + * The tnl_pipeline contains the array of all stages, which should be + * applied. Each stage is a black-box, which is described by an + * tnl_pipeline_stage. The function ::_tnl_run_pipeline applies all the + * stages to the vertex_buffer TNLcontext::vb, where the vertex data + * is stored. The last stage in the pipeline is the rasterizer. + * + */ + + +#ifndef _T_CONTEXT_H +#define _T_CONTEXT_H + +#include "main/glheader.h" +#include "main/bitset.h" +#include "main/mtypes.h" + +#include "math/m_matrix.h" +#include "math/m_vector.h" +#include "math/m_xform.h" + +#include "vbo/vbo.h" + +#define MAX_PIPELINE_STAGES 30 + +/* + * Note: The first attributes match the VERT_ATTRIB_* definitions + * in mtypes.h. However, the tnl module has additional attributes + * for materials, color indexes, edge flags, etc. + */ +/* Although it's nice to use these as bit indexes in a DWORD flag, we + * could manage without if necessary. Another limit currently is the + * number of bits allocated for these numbers in places like vertex + * program instruction formats and register layouts. + */ +/* The bit space exhaustion is a fact now, done by _TNL_ATTRIB_ATTRIBUTE* for + * GLSL vertex shader which cannot be aliased with conventional vertex attribs. + * Compacting _TNL_ATTRIB_MAT_* attribs would not work, they would not give + * as many free bits (11 plus already 1 free bit) as _TNL_ATTRIB_ATTRIBUTE* + * attribs want (16). + */ +enum { + _TNL_ATTRIB_POS = 0, + _TNL_ATTRIB_WEIGHT = 1, + _TNL_ATTRIB_NORMAL = 2, + _TNL_ATTRIB_COLOR0 = 3, + _TNL_ATTRIB_COLOR1 = 4, + _TNL_ATTRIB_FOG = 5, + _TNL_ATTRIB_COLOR_INDEX = 6, + _TNL_ATTRIB_EDGEFLAG = 7, + _TNL_ATTRIB_TEX0 = 8, + _TNL_ATTRIB_TEX1 = 9, + _TNL_ATTRIB_TEX2 = 10, + _TNL_ATTRIB_TEX3 = 11, + _TNL_ATTRIB_TEX4 = 12, + _TNL_ATTRIB_TEX5 = 13, + _TNL_ATTRIB_TEX6 = 14, + _TNL_ATTRIB_TEX7 = 15, + + _TNL_ATTRIB_GENERIC0 = 16, /* doesn't really exist! */ + _TNL_ATTRIB_GENERIC1 = 17, + _TNL_ATTRIB_GENERIC2 = 18, + _TNL_ATTRIB_GENERIC3 = 19, + _TNL_ATTRIB_GENERIC4 = 20, + _TNL_ATTRIB_GENERIC5 = 21, + _TNL_ATTRIB_GENERIC6 = 22, + _TNL_ATTRIB_GENERIC7 = 23, + _TNL_ATTRIB_GENERIC8 = 24, + _TNL_ATTRIB_GENERIC9 = 25, + _TNL_ATTRIB_GENERIC10 = 26, + _TNL_ATTRIB_GENERIC11 = 27, + _TNL_ATTRIB_GENERIC12 = 28, + _TNL_ATTRIB_GENERIC13 = 29, + _TNL_ATTRIB_GENERIC14 = 30, + _TNL_ATTRIB_GENERIC15 = 31, + + /* These alias with the generics, but they are not active + * concurrently, so it's not a problem. The TNL module + * doesn't have to do anything about this as this is how they + * are passed into the _draw_prims callback. + * + * When we generate fixed-function replacement programs (in + * t_vp_build.c currently), they refer to the appropriate + * generic attribute in order to pick up per-vertex material + * data. + */ + _TNL_ATTRIB_MAT_FRONT_AMBIENT = 16, + _TNL_ATTRIB_MAT_BACK_AMBIENT = 17, + _TNL_ATTRIB_MAT_FRONT_DIFFUSE = 18, + _TNL_ATTRIB_MAT_BACK_DIFFUSE = 19, + _TNL_ATTRIB_MAT_FRONT_SPECULAR = 20, + _TNL_ATTRIB_MAT_BACK_SPECULAR = 21, + _TNL_ATTRIB_MAT_FRONT_EMISSION = 22, + _TNL_ATTRIB_MAT_BACK_EMISSION = 23, + _TNL_ATTRIB_MAT_FRONT_SHININESS = 24, + _TNL_ATTRIB_MAT_BACK_SHININESS = 25, + _TNL_ATTRIB_MAT_FRONT_INDEXES = 26, + _TNL_ATTRIB_MAT_BACK_INDEXES = 27, + + /* This is really a VERT_RESULT, not an attrib. Need to fix + * tnl to understand the difference. + */ + _TNL_ATTRIB_POINTSIZE = 16, + + _TNL_ATTRIB_MAX = 32 +} ; + +#define _TNL_ATTRIB_TEX(u) (_TNL_ATTRIB_TEX0 + (u)) +#define _TNL_ATTRIB_GENERIC(n) (_TNL_ATTRIB_GENERIC0 + (n)) + +/* special index used for handing invalid glVertexAttribute() indices */ +#define _TNL_ATTRIB_ERROR (_TNL_ATTRIB_GENERIC15 + 1) + +/** + * Handy attribute ranges: + */ +#define _TNL_FIRST_PROG _TNL_ATTRIB_WEIGHT +#define _TNL_LAST_PROG _TNL_ATTRIB_TEX7 + +#define _TNL_FIRST_TEX _TNL_ATTRIB_TEX0 +#define _TNL_LAST_TEX _TNL_ATTRIB_TEX7 + +#define _TNL_FIRST_GENERIC _TNL_ATTRIB_GENERIC0 +#define _TNL_LAST_GENERIC _TNL_ATTRIB_GENERIC15 + +#define _TNL_FIRST_MAT _TNL_ATTRIB_MAT_FRONT_AMBIENT /* GENERIC0 */ +#define _TNL_LAST_MAT _TNL_ATTRIB_MAT_BACK_INDEXES /* GENERIC11 */ + +/* Number of available generic attributes */ +#define _TNL_NUM_GENERIC 16 + +/* Number of attributes used for evaluators */ +#define _TNL_NUM_EVAL 16 + + +#define PRIM_BEGIN 0x10 +#define PRIM_END 0x20 +#define PRIM_MODE_MASK 0x0f + +static INLINE GLuint _tnl_translate_prim( const struct _mesa_prim *prim ) +{ + GLuint flag; + flag = prim->mode; + if (prim->begin) flag |= PRIM_BEGIN; + if (prim->end) flag |= PRIM_END; + return flag; +} + + + + +/** + * Contains the current state of a running pipeline. + */ +struct vertex_buffer +{ + GLuint Size; /**< Max vertices per vertex buffer, constant */ + + /* Constant over the pipeline. + */ + GLuint Count; /**< Number of vertices currently in buffer */ + + /* Pointers to current data. + * XXX some of these fields alias AttribPtr below and should be removed + * such as NormalPtr, TexCoordPtr, FogCoordPtr, etc. + */ + GLuint *Elts; + GLvector4f *ObjPtr; /* _TNL_BIT_POS */ + GLvector4f *EyePtr; /* _TNL_BIT_POS */ + GLvector4f *ClipPtr; /* _TNL_BIT_POS */ + GLvector4f *NdcPtr; /* _TNL_BIT_POS */ + GLubyte ClipOrMask; /* _TNL_BIT_POS */ + GLubyte ClipAndMask; /* _TNL_BIT_POS */ + GLubyte *ClipMask; /* _TNL_BIT_POS */ + GLvector4f *NormalPtr; /* _TNL_BIT_NORMAL */ + GLfloat *NormalLengthPtr; /* _TNL_BIT_NORMAL */ + GLboolean *EdgeFlag; /* _TNL_BIT_EDGEFLAG */ + GLvector4f *TexCoordPtr[MAX_TEXTURE_COORD_UNITS]; /* VERT_TEX_0..n */ + GLvector4f *IndexPtr[2]; /* _TNL_BIT_INDEX */ + GLvector4f *ColorPtr[2]; /* _TNL_BIT_COLOR0 */ + GLvector4f *SecondaryColorPtr[2]; /* _TNL_BIT_COLOR1 */ + GLvector4f *FogCoordPtr; /* _TNL_BIT_FOG */ + + const struct _mesa_prim *Primitive; + GLuint PrimitiveCount; + + /* Inputs to the vertex program stage */ + GLvector4f *AttribPtr[_TNL_ATTRIB_MAX]; /* GL_NV_vertex_program */ +}; + + +/** + * Describes an individual operation on the pipeline. + */ +struct tnl_pipeline_stage +{ + const char *name; + + /* Private data for the pipeline stage: + */ + void *privatePtr; + + /* Allocate private data + */ + GLboolean (*create)( GLcontext *ctx, struct tnl_pipeline_stage * ); + + /* Free private data. + */ + void (*destroy)( struct tnl_pipeline_stage * ); + + /* Called on any statechange or input array size change or + * input array change to/from zero stride. + */ + void (*validate)( GLcontext *ctx, struct tnl_pipeline_stage * ); + + /* Called from _tnl_run_pipeline(). The stage.changed_inputs value + * encodes all inputs to thee struct which have changed. If + * non-zero, recompute all affected outputs of the stage, otherwise + * execute any 'sideeffects' of the stage. + * + * Return value: GL_TRUE - keep going + * GL_FALSE - finished pipeline + */ + GLboolean (*run)( GLcontext *ctx, struct tnl_pipeline_stage * ); +}; + + + +/** Contains the array of all pipeline stages. + * The default values are defined at the end of t_pipeline.c + */ +struct tnl_pipeline { + + GLuint last_attrib_stride[_TNL_ATTRIB_MAX]; + GLuint last_attrib_size[_TNL_ATTRIB_MAX]; + GLuint input_changes; + GLuint new_state; + + struct tnl_pipeline_stage stages[MAX_PIPELINE_STAGES+1]; + GLuint nr_stages; +}; + +struct tnl_clipspace; +struct tnl_clipspace_attr; + +typedef void (*tnl_extract_func)( const struct tnl_clipspace_attr *a, + GLfloat *out, + const GLubyte *v ); + +typedef void (*tnl_insert_func)( const struct tnl_clipspace_attr *a, + GLubyte *v, + const GLfloat *in ); + +typedef void (*tnl_emit_func)( GLcontext *ctx, + GLuint count, + GLubyte *dest ); + + +/** + * Describes how to convert/move a vertex attribute from a vertex array + * to a vertex structure. + */ +struct tnl_clipspace_attr +{ + GLuint attrib; /* which vertex attrib (0=position, etc) */ + GLuint format; + GLuint vertoffset; /* position of the attrib in the vertex struct */ + GLuint vertattrsize; /* size of the attribute in bytes */ + GLubyte *inputptr; + GLuint inputstride; + GLuint inputsize; + const tnl_insert_func *insert; + tnl_insert_func emit; + tnl_extract_func extract; + const GLfloat *vp; /* NDC->Viewport mapping matrix */ +}; + + + + +typedef void (*tnl_points_func)( GLcontext *ctx, GLuint first, GLuint last ); +typedef void (*tnl_line_func)( GLcontext *ctx, GLuint v1, GLuint v2 ); +typedef void (*tnl_triangle_func)( GLcontext *ctx, + GLuint v1, GLuint v2, GLuint v3 ); +typedef void (*tnl_quad_func)( GLcontext *ctx, GLuint v1, GLuint v2, + GLuint v3, GLuint v4 ); +typedef void (*tnl_render_func)( GLcontext *ctx, GLuint start, GLuint count, + GLuint flags ); +typedef void (*tnl_interp_func)( GLcontext *ctx, + GLfloat t, GLuint dst, GLuint out, GLuint in, + GLboolean force_boundary ); +typedef void (*tnl_copy_pv_func)( GLcontext *ctx, GLuint dst, GLuint src ); +typedef void (*tnl_setup_func)( GLcontext *ctx, + GLuint start, GLuint end, + GLuint new_inputs); + + +struct tnl_attr_type { + GLuint format; + GLuint size; + GLuint stride; + GLuint offset; +}; + +struct tnl_clipspace_fastpath { + GLuint vertex_size; + GLuint attr_count; + GLboolean match_strides; + + struct tnl_attr_type *attr; + + tnl_emit_func func; + struct tnl_clipspace_fastpath *next; +}; + +/** + * Used to describe conversion of vertex arrays to vertex structures. + * I.e. Structure of arrays to arrays of structs. + */ +struct tnl_clipspace +{ + GLboolean need_extras; + + GLuint new_inputs; + + GLubyte *vertex_buf; + GLuint vertex_size; + GLuint max_vertex_size; + + struct tnl_clipspace_attr attr[_TNL_ATTRIB_MAX]; + GLuint attr_count; + + tnl_emit_func emit; + tnl_interp_func interp; + tnl_copy_pv_func copy_pv; + + /* Parameters and constants for codegen: + */ + GLboolean need_viewport; + GLfloat vp_scale[4]; + GLfloat vp_xlate[4]; + GLfloat chan_scale[4]; + GLfloat identity[4]; + + struct tnl_clipspace_fastpath *fastpath; + + void (*codegen_emit)( GLcontext *ctx ); +}; + + +struct tnl_device_driver +{ + /*** + *** TNL Pipeline + ***/ + + void (*RunPipeline)(GLcontext *ctx); + /* Replaces PipelineStart/PipelineFinish -- intended to allow + * drivers to wrap _tnl_run_pipeline() with code to validate state + * and grab/release hardware locks. + */ + + void (*NotifyMaterialChange)(GLcontext *ctx); + /* Alert tnl-aware drivers of changes to material. + */ + + void (*NotifyInputChanges)(GLcontext *ctx, GLuint bitmask); + /* Alert tnl-aware drivers of changes to size and stride of input + * arrays. + */ + + /*** + *** Rendering -- These functions called only from t_vb_render.c + ***/ + struct + { + void (*Start)(GLcontext *ctx); + void (*Finish)(GLcontext *ctx); + /* Called before and after all rendering operations, including DrawPixels, + * ReadPixels, Bitmap, span functions, and CopyTexImage, etc commands. + * These are a suitable place for grabbing/releasing hardware locks. + */ + + void (*PrimitiveNotify)(GLcontext *ctx, GLenum mode); + /* Called between RenderStart() and RenderFinish() to indicate the + * type of primitive we're about to draw. Mode will be one of the + * modes accepted by glBegin(). + */ + + tnl_interp_func Interp; + /* The interp function is called by the clipping routines when we need + * to generate an interpolated vertex. All pertinant vertex ancilliary + * data should be computed by interpolating between the 'in' and 'out' + * vertices. + */ + + tnl_copy_pv_func CopyPV; + /* The copy function is used to make a copy of a vertex. All pertinant + * vertex attributes should be copied. + */ + + void (*ClippedPolygon)( GLcontext *ctx, const GLuint *elts, GLuint n ); + /* Render a polygon with <n> vertices whose indexes are in the <elts> + * array. + */ + + void (*ClippedLine)( GLcontext *ctx, GLuint v0, GLuint v1 ); + /* Render a line between the two vertices given by indexes v0 and v1. */ + + tnl_points_func Points; /* must now respect vb->elts */ + tnl_line_func Line; + tnl_triangle_func Triangle; + tnl_quad_func Quad; + /* These functions are called in order to render points, lines, + * triangles and quads. These are only called via the T&L module. + */ + + tnl_render_func *PrimTabVerts; + tnl_render_func *PrimTabElts; + /* Render whole unclipped primitives (points, lines, linestrips, + * lineloops, etc). The tables are indexed by the GL enum of the + * primitive to be rendered. RenderTabVerts is used for non-indexed + * arrays of vertices. RenderTabElts is used for indexed arrays of + * vertices. + */ + + void (*ResetLineStipple)( GLcontext *ctx ); + /* Reset the hardware's line stipple counter. + */ + + tnl_setup_func BuildVertices; + /* This function is called whenever new vertices are required for + * rendering. The vertices in question are those n such that start + * <= n < end. The new_inputs parameter indicates those fields of + * the vertex which need to be updated, if only a partial repair of + * the vertex is required. + * + * This function is called only from _tnl_render_stage in tnl/t_render.c. + */ + + + GLboolean (*Multipass)( GLcontext *ctx, GLuint passno ); + /* Driver may request additional render passes by returning GL_TRUE + * when this function is called. This function will be called + * after the first pass, and passes will be made until the function + * returns GL_FALSE. If no function is registered, only one pass + * is made. + * + * This function will be first invoked with passno == 1. + */ + } Render; +}; + + +#define DECLARE_RENDERINPUTS(name) BITSET64_DECLARE(name, _TNL_ATTRIB_MAX) +#define RENDERINPUTS_COPY BITSET64_COPY +#define RENDERINPUTS_EQUAL BITSET64_EQUAL +#define RENDERINPUTS_ZERO BITSET64_ZERO +#define RENDERINPUTS_ONES BITSET64_ONES +#define RENDERINPUTS_TEST BITSET64_TEST +#define RENDERINPUTS_SET BITSET64_SET +#define RENDERINPUTS_CLEAR BITSET64_CLEAR +#define RENDERINPUTS_TEST_RANGE BITSET64_TEST_RANGE +#define RENDERINPUTS_SET_RANGE BITSET64_SET_RANGE +#define RENDERINPUTS_CLEAR_RANGE BITSET64_CLEAR_RANGE + + +/** + * Context state for T&L context. + */ +typedef struct +{ + /* Driver interface. + */ + struct tnl_device_driver Driver; + + /* Pipeline + */ + struct tnl_pipeline pipeline; + struct vertex_buffer vb; + + /* Clipspace/ndc/window vertex managment: + */ + struct tnl_clipspace clipspace; + + /* Probably need a better configuration mechanism: + */ + GLboolean NeedNdcCoords; + GLboolean AllowVertexFog; + GLboolean AllowPixelFog; + GLboolean _DoVertexFog; /* eval fog function at each vertex? */ + + DECLARE_RENDERINPUTS(render_inputs_bitset); + + GLvector4f tmp_inputs[VERT_ATTRIB_MAX]; + + /* Temp storage for t_draw.c: + */ + GLubyte *block[VERT_ATTRIB_MAX]; + GLuint nr_blocks; + +} TNLcontext; + + + +#define TNL_CONTEXT(ctx) ((TNLcontext *)((ctx)->swtnl_context)) + + +#define TYPE_IDX(t) ((t) & 0xf) +#define MAX_TYPES TYPE_IDX(GL_DOUBLE)+1 /* 0xa + 1 */ + + +#endif diff --git a/mesalib/src/mesa/tnl/t_draw.c b/mesalib/src/mesa/tnl/t_draw.c new file mode 100644 index 000000000..c64c2c207 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_draw.c @@ -0,0 +1,451 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/imports.h" +#include "main/state.h" +#include "main/mtypes.h" +#include "main/macros.h" +#include "main/enums.h" + +#include "t_context.h" +#include "t_pipeline.h" +#include "t_vp_build.h" +#include "t_vertex.h" +#include "tnl.h" + + + +static GLubyte *get_space(GLcontext *ctx, GLuint bytes) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLubyte *space = _mesa_malloc(bytes); + + tnl->block[tnl->nr_blocks++] = space; + return space; +} + + +static void free_space(GLcontext *ctx) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint i; + for (i = 0; i < tnl->nr_blocks; i++) + _mesa_free(tnl->block[i]); + tnl->nr_blocks = 0; +} + + +/* Convert the incoming array to GLfloats. Understands the + * array->Normalized flag and selects the correct conversion method. + */ +#define CONVERT( TYPE, MACRO ) do { \ + GLuint i, j; \ + if (input->Normalized) { \ + for (i = 0; i < count; i++) { \ + const TYPE *in = (TYPE *)ptr; \ + for (j = 0; j < sz; j++) { \ + *fptr++ = MACRO(*in); \ + in++; \ + } \ + ptr += input->StrideB; \ + } \ + } else { \ + for (i = 0; i < count; i++) { \ + const TYPE *in = (TYPE *)ptr; \ + for (j = 0; j < sz; j++) { \ + *fptr++ = (GLfloat)(*in); \ + in++; \ + } \ + ptr += input->StrideB; \ + } \ + } \ +} while (0) + + +/** + * Convert array of BGRA/GLubyte[4] values to RGBA/float[4] + * \param ptr input/ubyte array + * \param fptr output/float array + */ +static void +convert_bgra_to_float(const struct gl_client_array *input, + const GLubyte *ptr, GLfloat *fptr, + GLuint count ) +{ + GLuint i; + assert(input->Normalized); + assert(input->Size == 4); + for (i = 0; i < count; i++) { + const GLubyte *in = (GLubyte *) ptr; /* in is in BGRA order */ + *fptr++ = UBYTE_TO_FLOAT(in[2]); /* red */ + *fptr++ = UBYTE_TO_FLOAT(in[1]); /* green */ + *fptr++ = UBYTE_TO_FLOAT(in[0]); /* blue */ + *fptr++ = UBYTE_TO_FLOAT(in[3]); /* alpha */ + ptr += input->StrideB; + } +} + + +/* Adjust pointer to point at first requested element, convert to + * floating point, populate VB->AttribPtr[]. + */ +static void _tnl_import_array( GLcontext *ctx, + GLuint attrib, + GLuint count, + const struct gl_client_array *input, + const GLubyte *ptr ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint stride = input->StrideB; + + if (input->Type != GL_FLOAT) { + const GLuint sz = input->Size; + GLubyte *buf = get_space(ctx, count * sz * sizeof(GLfloat)); + GLfloat *fptr = (GLfloat *)buf; + + switch (input->Type) { + case GL_BYTE: + CONVERT(GLbyte, BYTE_TO_FLOAT); + break; + case GL_UNSIGNED_BYTE: + if (input->Format == GL_BGRA) { + /* See GL_EXT_vertex_array_bgra */ + convert_bgra_to_float(input, ptr, fptr, count); + } + else { + CONVERT(GLubyte, UBYTE_TO_FLOAT); + } + break; + case GL_SHORT: + CONVERT(GLshort, SHORT_TO_FLOAT); + break; + case GL_UNSIGNED_SHORT: + CONVERT(GLushort, USHORT_TO_FLOAT); + break; + case GL_INT: + CONVERT(GLint, INT_TO_FLOAT); + break; + case GL_UNSIGNED_INT: + CONVERT(GLuint, UINT_TO_FLOAT); + break; + case GL_DOUBLE: + CONVERT(GLdouble, (GLfloat)); + break; + default: + assert(0); + break; + } + + ptr = buf; + stride = sz * sizeof(GLfloat); + } + + VB->AttribPtr[attrib] = &tnl->tmp_inputs[attrib]; + VB->AttribPtr[attrib]->data = (GLfloat (*)[4])ptr; + VB->AttribPtr[attrib]->start = (GLfloat *)ptr; + VB->AttribPtr[attrib]->count = count; + VB->AttribPtr[attrib]->stride = stride; + VB->AttribPtr[attrib]->size = input->Size; + + /* This should die, but so should the whole GLvector4f concept: + */ + VB->AttribPtr[attrib]->flags = (((1<<input->Size)-1) | + VEC_NOT_WRITEABLE | + (stride == 4*sizeof(GLfloat) ? 0 : VEC_BAD_STRIDE)); + + VB->AttribPtr[attrib]->storage = NULL; +} + +#define CLIPVERTS ((6 + MAX_CLIP_PLANES) * 2) + + +static GLboolean *_tnl_import_edgeflag( GLcontext *ctx, + const GLvector4f *input, + GLuint count) +{ + const GLubyte *ptr = (const GLubyte *)input->data; + const GLuint stride = input->stride; + GLboolean *space = (GLboolean *)get_space(ctx, count + CLIPVERTS); + GLboolean *bptr = space; + GLuint i; + + for (i = 0; i < count; i++) { + *bptr++ = ((GLfloat *)ptr)[0] == 1.0; + ptr += stride; + } + + return space; +} + + +static void bind_inputs( GLcontext *ctx, + const struct gl_client_array *inputs[], + GLint count, + struct gl_buffer_object **bo, + GLuint *nr_bo ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i; + + /* Map all the VBOs + */ + for (i = 0; i < VERT_ATTRIB_MAX; i++) { + const void *ptr; + + if (inputs[i]->BufferObj->Name) { + if (!inputs[i]->BufferObj->Pointer) { + bo[*nr_bo] = inputs[i]->BufferObj; + (*nr_bo)++; + ctx->Driver.MapBuffer(ctx, + GL_ARRAY_BUFFER, + GL_READ_ONLY_ARB, + inputs[i]->BufferObj); + + assert(inputs[i]->BufferObj->Pointer); + } + + ptr = ADD_POINTERS(inputs[i]->BufferObj->Pointer, + inputs[i]->Ptr); + } + else + ptr = inputs[i]->Ptr; + + /* Just make sure the array is floating point, otherwise convert to + * temporary storage. + * + * XXX: remove the GLvector4f type at some stage and just use + * client arrays. + */ + _tnl_import_array(ctx, i, count, inputs[i], ptr); + } + + /* We process only the vertices between min & max index: + */ + VB->Count = count; + + + /* Legacy pointers -- remove one day. + */ + VB->ObjPtr = VB->AttribPtr[_TNL_ATTRIB_POS]; + VB->NormalPtr = VB->AttribPtr[_TNL_ATTRIB_NORMAL]; + VB->ColorPtr[0] = VB->AttribPtr[_TNL_ATTRIB_COLOR0]; + VB->ColorPtr[1] = NULL; + VB->IndexPtr[0] = VB->AttribPtr[_TNL_ATTRIB_COLOR_INDEX]; + VB->IndexPtr[1] = NULL; + VB->SecondaryColorPtr[0] = VB->AttribPtr[_TNL_ATTRIB_COLOR1]; + VB->SecondaryColorPtr[1] = NULL; + VB->FogCoordPtr = VB->AttribPtr[_TNL_ATTRIB_FOG]; + + for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { + VB->TexCoordPtr[i] = VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]; + } + + /* Clipping and drawing code still requires this to be a packed + * array of ubytes which can be written into. TODO: Fix and + * remove. + */ + if (ctx->Polygon.FrontMode != GL_FILL || + ctx->Polygon.BackMode != GL_FILL) + { + VB->EdgeFlag = _tnl_import_edgeflag( ctx, + VB->AttribPtr[_TNL_ATTRIB_EDGEFLAG], + VB->Count ); + } + else { + /* the data previously pointed to by EdgeFlag may have been freed */ + VB->EdgeFlag = NULL; + } +} + + +/* Translate indices to GLuints and store in VB->Elts. + */ +static void bind_indices( GLcontext *ctx, + const struct _mesa_index_buffer *ib, + struct gl_buffer_object **bo, + GLuint *nr_bo) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i; + void *ptr; + + if (!ib) { + VB->Elts = NULL; + return; + } + + if (ib->obj->Name && !ib->obj->Pointer) { + bo[*nr_bo] = ib->obj; + (*nr_bo)++; + ctx->Driver.MapBuffer(ctx, + GL_ELEMENT_ARRAY_BUFFER, + GL_READ_ONLY_ARB, + ib->obj); + + assert(ib->obj->Pointer); + } + + ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr); + + if (ib->type == GL_UNSIGNED_INT) { + VB->Elts = (GLuint *) ptr; + } + else { + GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint)); + VB->Elts = elts; + + if (ib->type == GL_UNSIGNED_SHORT) { + const GLushort *in = (GLushort *)ptr; + for (i = 0; i < ib->count; i++) + *elts++ = (GLuint)(*in++); + } + else { + const GLubyte *in = (GLubyte *)ptr; + for (i = 0; i < ib->count; i++) + *elts++ = (GLuint)(*in++); + } + } +} + +static void bind_prims( GLcontext *ctx, + const struct _mesa_prim *prim, + GLuint nr_prims ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + VB->Primitive = prim; + VB->PrimitiveCount = nr_prims; +} + +static void unmap_vbos( GLcontext *ctx, + struct gl_buffer_object **bo, + GLuint nr_bo ) +{ + GLuint i; + for (i = 0; i < nr_bo; i++) { + ctx->Driver.UnmapBuffer(ctx, + 0, /* target -- I don't see why this would be needed */ + bo[i]); + } +} + + +void _tnl_vbo_draw_prims(GLcontext *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLboolean index_bounds_valid, + GLuint min_index, + GLuint max_index) +{ + if (!index_bounds_valid) + vbo_get_minmax_index(ctx, prim, ib, &min_index, &max_index); + + _tnl_draw_prims(ctx, arrays, prim, nr_prims, ib, min_index, max_index); +} + +/* This is the main entrypoint into the slimmed-down software tnl + * module. In a regular swtnl driver, this can be plugged straight + * into the vbo->Driver.DrawPrims() callback. + */ +void _tnl_draw_prims( GLcontext *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLuint min_index, + GLuint max_index) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + const GLuint TEST_SPLIT = 0; + const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES; + + if (0) + { + GLuint i; + _mesa_printf("%s %d..%d\n", __FUNCTION__, min_index, max_index); + for (i = 0; i < nr_prims; i++) + _mesa_printf("prim %d: %s start %d count %d\n", i, + _mesa_lookup_enum_by_nr(prim[i].mode), + prim[i].start, + prim[i].count); + } + + if (min_index) { + /* We always translate away calls with min_index != 0. + */ + vbo_rebase_prims( ctx, arrays, prim, nr_prims, ib, + min_index, max_index, + _tnl_vbo_draw_prims ); + return; + } + else if (max_index > max) { + /* The software TNL pipeline has a fixed amount of storage for + * vertices and it is necessary to split incoming drawing commands + * if they exceed that limit. + */ + struct split_limits limits; + limits.max_verts = max; + limits.max_vb_size = ~0; + limits.max_indices = ~0; + + /* This will split the buffers one way or another and + * recursively call back into this function. + */ + vbo_split_prims( ctx, arrays, prim, nr_prims, ib, + 0, max_index, + _tnl_vbo_draw_prims, + &limits ); + } + else { + /* May need to map a vertex buffer object for every attribute plus + * one for the index buffer. + */ + struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1]; + GLuint nr_bo = 0; + + /* Binding inputs may imply mapping some vertex buffer objects. + * They will need to be unmapped below. + */ + bind_inputs(ctx, arrays, max_index+1, bo, &nr_bo); + bind_indices(ctx, ib, bo, &nr_bo); + bind_prims(ctx, prim, nr_prims ); + + TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx); + + unmap_vbos(ctx, bo, nr_bo); + free_space(ctx); + } +} + diff --git a/mesalib/src/mesa/tnl/t_pipeline.c b/mesalib/src/mesa/tnl/t_pipeline.c new file mode 100644 index 000000000..357ef1e24 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_pipeline.c @@ -0,0 +1,215 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/imports.h" +#include "main/state.h" +#include "main/mtypes.h" + +#include "t_context.h" +#include "t_pipeline.h" +#include "t_vp_build.h" +#include "t_vertex.h" + +void _tnl_install_pipeline( GLcontext *ctx, + const struct tnl_pipeline_stage **stages ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint i; + + tnl->pipeline.new_state = ~0; + + /* Create a writeable copy of each stage. + */ + for (i = 0 ; i < MAX_PIPELINE_STAGES && stages[i] ; i++) { + struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; + MEMCPY(s, stages[i], sizeof(*s)); + if (s->create) + s->create(ctx, s); + } + + tnl->pipeline.nr_stages = i; +} + +void _tnl_destroy_pipeline( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint i; + + for (i = 0 ; i < tnl->pipeline.nr_stages ; i++) { + struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; + if (s->destroy) + s->destroy(s); + } + + tnl->pipeline.nr_stages = 0; +} + + + +static GLuint check_input_changes( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + GLuint i; + + for (i = 0; i <= _TNL_LAST_MAT; i++) { + if (tnl->vb.AttribPtr[i]->size != tnl->pipeline.last_attrib_size[i] || + tnl->vb.AttribPtr[i]->stride != tnl->pipeline.last_attrib_stride[i]) { + tnl->pipeline.last_attrib_size[i] = tnl->vb.AttribPtr[i]->size; + tnl->pipeline.last_attrib_stride[i] = tnl->vb.AttribPtr[i]->stride; + tnl->pipeline.input_changes |= 1<<i; + } + } + + if (tnl->pipeline.input_changes && + tnl->Driver.NotifyInputChanges) + tnl->Driver.NotifyInputChanges( ctx, tnl->pipeline.input_changes ); + + return tnl->pipeline.input_changes; +} + + +static GLuint check_output_changes( GLcontext *ctx ) +{ +#if 0 + TNLcontext *tnl = TNL_CONTEXT(ctx); + + for (i = 0; i < VERT_RESULT_MAX; i++) { + if (tnl->vb.ResultPtr[i]->size != tnl->last_result_size[i] || + tnl->vb.ResultPtr[i]->stride != tnl->last_result_stride[i]) { + tnl->last_result_size[i] = tnl->vb.ResultPtr[i]->size; + tnl->last_result_stride[i] = tnl->vb.ResultPtr[i]->stride; + tnl->pipeline.output_changes |= 1<<i; + } + } + + if (tnl->pipeline.output_changes) + tnl->Driver.NotifyOutputChanges( ctx, tnl->pipeline.output_changes ); + + return tnl->pipeline.output_changes; +#else + return ~0; +#endif +} + + +void _tnl_run_pipeline( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + unsigned short __tmp; + GLuint i; + + if (!tnl->vb.Count) + return; + + /* Check for changed input sizes or change in stride to/from zero + * (ie const or non-const). + */ + if (check_input_changes( ctx ) || tnl->pipeline.new_state) { + if (ctx->VertexProgram._MaintainTnlProgram) + _tnl_UpdateFixedFunctionProgram( ctx ); + + for (i = 0; i < tnl->pipeline.nr_stages ; i++) { + struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; + if (s->validate) + s->validate( ctx, s ); + } + + tnl->pipeline.new_state = 0; + tnl->pipeline.input_changes = 0; + + /* Pipeline can only change its output in response to either a + * statechange or an input size/stride change. No other changes + * are allowed. + */ + if (check_output_changes( ctx )) + _tnl_notify_pipeline_output_change( ctx ); + } + + START_FAST_MATH(__tmp); + + for (i = 0; i < tnl->pipeline.nr_stages ; i++) { + struct tnl_pipeline_stage *s = &tnl->pipeline.stages[i]; + if (!s->run( ctx, s )) + break; + } + + END_FAST_MATH(__tmp); +} + + + +/* The default pipeline. This is useful for software rasterizers, and + * simple hardware rasterizers. For customization, I don't recommend + * tampering with the internals of these stages in the way that + * drivers did in Mesa 3.4. These stages are basically black boxes, + * and should be left intact. + * + * To customize the pipeline, consider: + * + * - removing redundant stages (making sure that the software rasterizer + * can cope with this on fallback paths). An example is fog + * coordinate generation, which is not required in the FX driver. + * + * - replacing general-purpose machine-independent stages with + * general-purpose machine-specific stages. There is no example of + * this to date, though it must be borne in mind that all subsequent + * stages that reference the output of the new stage must cope with + * any machine-specific data introduced. This may not be easy + * unless there are no such stages (ie the new stage is the last in + * the pipe). + * + * - inserting optimized (but specialized) stages ahead of the + * general-purpose fallback implementation. For example, the old + * fastpath mechanism, which only works when the VB->Elts input is + * available, can be duplicated by placing the fastpath stage at the + * head of this pipeline. Such specialized stages are currently + * constrained to have no outputs (ie. they must either finish the * + * pipeline by returning GL_FALSE from run(), or do nothing). + * + * Some work can be done to lift some of the restrictions in the final + * case, if it becomes necessary to do so. + */ +const struct tnl_pipeline_stage *_tnl_default_pipeline[] = { + &_tnl_vertex_transform_stage, + &_tnl_normal_transform_stage, + &_tnl_lighting_stage, + &_tnl_texgen_stage, + &_tnl_texture_transform_stage, + &_tnl_point_attenuation_stage, + &_tnl_vertex_program_stage, + &_tnl_fog_coordinate_stage, + &_tnl_render_stage, + NULL +}; + +const struct tnl_pipeline_stage *_tnl_vp_pipeline[] = { + &_tnl_vertex_program_stage, + &_tnl_render_stage, + NULL +}; diff --git a/mesalib/src/mesa/tnl/t_pipeline.h b/mesalib/src/mesa/tnl/t_pipeline.h new file mode 100644 index 000000000..d110010f0 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_pipeline.h @@ -0,0 +1,74 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + + +#ifndef _T_PIPELINE_H_ +#define _T_PIPELINE_H_ + +#include "main/mtypes.h" +#include "t_context.h" + +extern void _tnl_run_pipeline( GLcontext *ctx ); + +extern void _tnl_destroy_pipeline( GLcontext *ctx ); + +extern void _tnl_install_pipeline( GLcontext *ctx, + const struct tnl_pipeline_stage **stages ); + + +/* These are implemented in the t_vb_*.c files: + */ +extern const struct tnl_pipeline_stage _tnl_vertex_transform_stage; +extern const struct tnl_pipeline_stage _tnl_vertex_cull_stage; +extern const struct tnl_pipeline_stage _tnl_normal_transform_stage; +extern const struct tnl_pipeline_stage _tnl_lighting_stage; +extern const struct tnl_pipeline_stage _tnl_fog_coordinate_stage; +extern const struct tnl_pipeline_stage _tnl_texgen_stage; +extern const struct tnl_pipeline_stage _tnl_texture_transform_stage; +extern const struct tnl_pipeline_stage _tnl_point_attenuation_stage; +extern const struct tnl_pipeline_stage _tnl_vertex_program_stage; +extern const struct tnl_pipeline_stage _tnl_render_stage; + +/* Shorthand to plug in the default pipeline: + */ +extern const struct tnl_pipeline_stage *_tnl_default_pipeline[]; +extern const struct tnl_pipeline_stage *_tnl_vp_pipeline[]; + + +/* Convenience routines provided by t_vb_render.c: + */ +extern tnl_render_func _tnl_render_tab_elts[]; +extern tnl_render_func _tnl_render_tab_verts[]; + +extern void _tnl_RenderClippedPolygon( GLcontext *ctx, + const GLuint *elts, GLuint n ); + +extern void _tnl_RenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj ); + + +#endif diff --git a/mesalib/src/mesa/tnl/t_rasterpos.c b/mesalib/src/mesa/tnl/t_rasterpos.c new file mode 100644 index 000000000..f1fdddf0f --- /dev/null +++ b/mesalib/src/mesa/tnl/t_rasterpos.c @@ -0,0 +1,505 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/feedback.h" +#include "main/light.h" +#include "main/macros.h" +#include "main/rastpos.h" +#include "main/simple_list.h" +#include "main/mtypes.h" + +#include "math/m_matrix.h" +#include "tnl/tnl.h" + + + +/** + * Clip a point against the view volume. + * + * \param v vertex vector describing the point to clip. + * + * \return zero if outside view volume, or one if inside. + */ +static GLuint +viewclip_point( const GLfloat v[] ) +{ + if ( v[0] > v[3] || v[0] < -v[3] + || v[1] > v[3] || v[1] < -v[3] + || v[2] > v[3] || v[2] < -v[3] ) { + return 0; + } + else { + return 1; + } +} + + +/** + * Clip a point against the far/near Z clipping planes. + * + * \param v vertex vector describing the point to clip. + * + * \return zero if outside view volume, or one if inside. + */ +static GLuint +viewclip_point_z( const GLfloat v[] ) +{ + if (v[2] > v[3] || v[2] < -v[3] ) { + return 0; + } + else { + return 1; + } +} + + +/** + * Clip a point against the user clipping planes. + * + * \param ctx GL context. + * \param v vertex vector describing the point to clip. + * + * \return zero if the point was clipped, or one otherwise. + */ +static GLuint +userclip_point( GLcontext *ctx, const GLfloat v[] ) +{ + GLuint p; + + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + GLfloat dot = v[0] * ctx->Transform._ClipUserPlane[p][0] + + v[1] * ctx->Transform._ClipUserPlane[p][1] + + v[2] * ctx->Transform._ClipUserPlane[p][2] + + v[3] * ctx->Transform._ClipUserPlane[p][3]; + if (dot < 0.0F) { + return 0; + } + } + } + + return 1; +} + + +/** + * Compute lighting for the raster position. Both RGB and CI modes computed. + * \param ctx the context + * \param vertex vertex location + * \param normal normal vector + * \param Rcolor returned color + * \param Rspec returned specular color (if separate specular enabled) + * \param Rindex returned color index + */ +static void +shade_rastpos(GLcontext *ctx, + const GLfloat vertex[4], + const GLfloat normal[3], + GLfloat Rcolor[4], + GLfloat Rspec[4], + GLfloat *Rindex) +{ + /*const*/ GLfloat (*base)[3] = ctx->Light._BaseColor; + const struct gl_light *light; + GLfloat diffuseColor[4], specularColor[4]; /* for RGB mode only */ + GLfloat diffuseCI = 0.0, specularCI = 0.0; /* for CI mode only */ + + _mesa_validate_all_lighting_tables( ctx ); + + COPY_3V(diffuseColor, base[0]); + diffuseColor[3] = CLAMP( + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3], 0.0F, 1.0F ); + ASSIGN_4V(specularColor, 0.0, 0.0, 0.0, 1.0); + + foreach (light, &ctx->Light.EnabledList) { + GLfloat attenuation = 1.0; + GLfloat VP[3]; /* vector from vertex to light pos */ + GLfloat n_dot_VP; + GLfloat diffuseContrib[3], specularContrib[3]; + + if (!(light->_Flags & LIGHT_POSITIONAL)) { + /* light at infinity */ + COPY_3V(VP, light->_VP_inf_norm); + attenuation = light->_VP_inf_spot_attenuation; + } + else { + /* local/positional light */ + GLfloat d; + + /* VP = vector from vertex pos to light[i].pos */ + SUB_3V(VP, light->_Position, vertex); + /* d = length(VP) */ + d = (GLfloat) LEN_3FV( VP ); + if (d > 1.0e-6) { + /* normalize VP */ + GLfloat invd = 1.0F / d; + SELF_SCALE_SCALAR_3V(VP, invd); + } + + /* atti */ + attenuation = 1.0F / (light->ConstantAttenuation + d * + (light->LinearAttenuation + d * + light->QuadraticAttenuation)); + + if (light->_Flags & LIGHT_SPOT) { + GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); + + if (PV_dot_dir<light->_CosCutoff) { + continue; + } + else { + double x = PV_dot_dir * (EXP_TABLE_SIZE-1); + int k = (int) x; + GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] + + (x-k)*light->_SpotExpTable[k][1]); + attenuation *= spot; + } + } + } + + if (attenuation < 1e-3) + continue; + + n_dot_VP = DOT3( normal, VP ); + + if (n_dot_VP < 0.0F) { + ACC_SCALE_SCALAR_3V(diffuseColor, attenuation, light->_MatAmbient[0]); + continue; + } + + /* Ambient + diffuse */ + COPY_3V(diffuseContrib, light->_MatAmbient[0]); + ACC_SCALE_SCALAR_3V(diffuseContrib, n_dot_VP, light->_MatDiffuse[0]); + diffuseCI += n_dot_VP * light->_dli * attenuation; + + /* Specular */ + { + const GLfloat *h; + GLfloat n_dot_h; + + ASSIGN_3V(specularContrib, 0.0, 0.0, 0.0); + + if (ctx->Light.Model.LocalViewer) { + GLfloat v[3]; + COPY_3V(v, vertex); + NORMALIZE_3FV(v); + SUB_3V(VP, VP, v); + NORMALIZE_3FV(VP); + h = VP; + } + else if (light->_Flags & LIGHT_POSITIONAL) { + ACC_3V(VP, ctx->_EyeZDir); + NORMALIZE_3FV(VP); + h = VP; + } + else { + h = light->_h_inf_norm; + } + + n_dot_h = DOT3(normal, h); + + if (n_dot_h > 0.0F) { + GLfloat spec_coef; + GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec_coef ); + + if (spec_coef > 1.0e-10) { + if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) { + ACC_SCALE_SCALAR_3V( specularContrib, spec_coef, + light->_MatSpecular[0]); + } + else { + ACC_SCALE_SCALAR_3V( diffuseContrib, spec_coef, + light->_MatSpecular[0]); + } + /*assert(light->_sli > 0.0);*/ + specularCI += spec_coef * light->_sli * attenuation; + } + } + } + + ACC_SCALE_SCALAR_3V( diffuseColor, attenuation, diffuseContrib ); + ACC_SCALE_SCALAR_3V( specularColor, attenuation, specularContrib ); + } + + if (ctx->Visual.rgbMode) { + Rcolor[0] = CLAMP(diffuseColor[0], 0.0F, 1.0F); + Rcolor[1] = CLAMP(diffuseColor[1], 0.0F, 1.0F); + Rcolor[2] = CLAMP(diffuseColor[2], 0.0F, 1.0F); + Rcolor[3] = CLAMP(diffuseColor[3], 0.0F, 1.0F); + Rspec[0] = CLAMP(specularColor[0], 0.0F, 1.0F); + Rspec[1] = CLAMP(specularColor[1], 0.0F, 1.0F); + Rspec[2] = CLAMP(specularColor[2], 0.0F, 1.0F); + Rspec[3] = CLAMP(specularColor[3], 0.0F, 1.0F); + } + else { + GLfloat *ind = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_INDEXES]; + GLfloat d_a = ind[MAT_INDEX_DIFFUSE] - ind[MAT_INDEX_AMBIENT]; + GLfloat s_a = ind[MAT_INDEX_SPECULAR] - ind[MAT_INDEX_AMBIENT]; + GLfloat i = (ind[MAT_INDEX_AMBIENT] + + diffuseCI * (1.0F-specularCI) * d_a + + specularCI * s_a); + if (i > ind[MAT_INDEX_SPECULAR]) { + i = ind[MAT_INDEX_SPECULAR]; + } + *Rindex = i; + } +} + + +/** + * Do texgen needed for glRasterPos. + * \param ctx rendering context + * \param vObj object-space vertex coordinate + * \param vEye eye-space vertex coordinate + * \param normal vertex normal + * \param unit texture unit number + * \param texcoord incoming texcoord and resulting texcoord + */ +static void +compute_texgen(GLcontext *ctx, const GLfloat vObj[4], const GLfloat vEye[4], + const GLfloat normal[3], GLuint unit, GLfloat texcoord[4]) +{ + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + + /* always compute sphere map terms, just in case */ + GLfloat u[3], two_nu, rx, ry, rz, m, mInv; + COPY_3V(u, vEye); + NORMALIZE_3FV(u); + two_nu = 2.0F * DOT3(normal, u); + rx = u[0] - normal[0] * two_nu; + ry = u[1] - normal[1] * two_nu; + rz = u[2] - normal[2] * two_nu; + m = rx * rx + ry * ry + (rz + 1.0F) * (rz + 1.0F); + if (m > 0.0F) + mInv = 0.5F * _mesa_inv_sqrtf(m); + else + mInv = 0.0F; + + if (texUnit->TexGenEnabled & S_BIT) { + switch (texUnit->GenS.Mode) { + case GL_OBJECT_LINEAR: + texcoord[0] = DOT4(vObj, texUnit->GenS.ObjectPlane); + break; + case GL_EYE_LINEAR: + texcoord[0] = DOT4(vEye, texUnit->GenS.EyePlane); + break; + case GL_SPHERE_MAP: + texcoord[0] = rx * mInv + 0.5F; + break; + case GL_REFLECTION_MAP: + texcoord[0] = rx; + break; + case GL_NORMAL_MAP: + texcoord[0] = normal[0]; + break; + default: + _mesa_problem(ctx, "Bad S texgen in compute_texgen()"); + return; + } + } + + if (texUnit->TexGenEnabled & T_BIT) { + switch (texUnit->GenT.Mode) { + case GL_OBJECT_LINEAR: + texcoord[1] = DOT4(vObj, texUnit->GenT.ObjectPlane); + break; + case GL_EYE_LINEAR: + texcoord[1] = DOT4(vEye, texUnit->GenT.EyePlane); + break; + case GL_SPHERE_MAP: + texcoord[1] = ry * mInv + 0.5F; + break; + case GL_REFLECTION_MAP: + texcoord[1] = ry; + break; + case GL_NORMAL_MAP: + texcoord[1] = normal[1]; + break; + default: + _mesa_problem(ctx, "Bad T texgen in compute_texgen()"); + return; + } + } + + if (texUnit->TexGenEnabled & R_BIT) { + switch (texUnit->GenR.Mode) { + case GL_OBJECT_LINEAR: + texcoord[2] = DOT4(vObj, texUnit->GenR.ObjectPlane); + break; + case GL_EYE_LINEAR: + texcoord[2] = DOT4(vEye, texUnit->GenR.EyePlane); + break; + case GL_REFLECTION_MAP: + texcoord[2] = rz; + break; + case GL_NORMAL_MAP: + texcoord[2] = normal[2]; + break; + default: + _mesa_problem(ctx, "Bad R texgen in compute_texgen()"); + return; + } + } + + if (texUnit->TexGenEnabled & Q_BIT) { + switch (texUnit->GenQ.Mode) { + case GL_OBJECT_LINEAR: + texcoord[3] = DOT4(vObj, texUnit->GenQ.ObjectPlane); + break; + case GL_EYE_LINEAR: + texcoord[3] = DOT4(vEye, texUnit->GenQ.EyePlane); + break; + default: + _mesa_problem(ctx, "Bad Q texgen in compute_texgen()"); + return; + } + } +} + + +/** + * glRasterPos transformation. Typically called via ctx->Driver.RasterPos(). + * XXX some of this code (such as viewport xform, clip testing and setting + * of ctx->Current.Raster* fields) could get lifted up into the + * main/rasterpos.c code. + * + * \param vObj vertex position in object space + */ +void +_tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4]) +{ + if (ctx->VertexProgram._Enabled) { + /* XXX implement this */ + _mesa_problem(ctx, "Vertex programs not implemented for glRasterPos"); + return; + } + else { + GLfloat eye[4], clip[4], ndc[3], d; + GLfloat *norm, eyenorm[3]; + GLfloat *objnorm = ctx->Current.Attrib[VERT_ATTRIB_NORMAL]; + + /* apply modelview matrix: eye = MV * obj */ + TRANSFORM_POINT( eye, ctx->ModelviewMatrixStack.Top->m, vObj ); + /* apply projection matrix: clip = Proj * eye */ + TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye ); + + /* clip to view volume */ + if (ctx->Transform.RasterPositionUnclipped) { + /* GL_IBM_rasterpos_clip: only clip against Z */ + if (viewclip_point_z(clip) == 0) { + ctx->Current.RasterPosValid = GL_FALSE; + return; + } + } + else if (viewclip_point(clip) == 0) { + /* Normal OpenGL behaviour */ + ctx->Current.RasterPosValid = GL_FALSE; + return; + } + + /* clip to user clipping planes */ + if (ctx->Transform.ClipPlanesEnabled && !userclip_point(ctx, clip)) { + ctx->Current.RasterPosValid = GL_FALSE; + return; + } + + /* ndc = clip / W */ + d = (clip[3] == 0.0F) ? 1.0F : 1.0F / clip[3]; + ndc[0] = clip[0] * d; + ndc[1] = clip[1] * d; + ndc[2] = clip[2] * d; + /* wincoord = viewport_mapping(ndc) */ + ctx->Current.RasterPos[0] = (ndc[0] * ctx->Viewport._WindowMap.m[MAT_SX] + + ctx->Viewport._WindowMap.m[MAT_TX]); + ctx->Current.RasterPos[1] = (ndc[1] * ctx->Viewport._WindowMap.m[MAT_SY] + + ctx->Viewport._WindowMap.m[MAT_TY]); + ctx->Current.RasterPos[2] = (ndc[2] * ctx->Viewport._WindowMap.m[MAT_SZ] + + ctx->Viewport._WindowMap.m[MAT_TZ]) + / ctx->DrawBuffer->_DepthMaxF; + ctx->Current.RasterPos[3] = clip[3]; + + /* compute raster distance */ + if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) + ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; + else + ctx->Current.RasterDistance = + SQRTF( eye[0]*eye[0] + eye[1]*eye[1] + eye[2]*eye[2] ); + + /* compute transformed normal vector (for lighting or texgen) */ + if (ctx->_NeedEyeCoords) { + const GLfloat *inv = ctx->ModelviewMatrixStack.Top->inv; + TRANSFORM_NORMAL( eyenorm, objnorm, inv ); + norm = eyenorm; + } + else { + norm = objnorm; + } + + /* update raster color */ + if (ctx->Light.Enabled) { + /* lighting */ + shade_rastpos( ctx, vObj, norm, + ctx->Current.RasterColor, + ctx->Current.RasterSecondaryColor, + &ctx->Current.RasterIndex ); + } + else { + /* use current color or index */ + if (ctx->Visual.rgbMode) { + COPY_4FV(ctx->Current.RasterColor, + ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); + COPY_4FV(ctx->Current.RasterSecondaryColor, + ctx->Current.Attrib[VERT_ATTRIB_COLOR1]); + } + else { + ctx->Current.RasterIndex + = ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0]; + } + } + + /* texture coords */ + { + GLuint u; + for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { + GLfloat tc[4]; + COPY_4V(tc, ctx->Current.Attrib[VERT_ATTRIB_TEX0 + u]); + if (ctx->Texture.Unit[u].TexGenEnabled) { + compute_texgen(ctx, vObj, eye, norm, u, tc); + } + TRANSFORM_POINT(ctx->Current.RasterTexCoords[u], + ctx->TextureMatrixStack[u].Top->m, tc); + } + } + + ctx->Current.RasterPosValid = GL_TRUE; + } + + if (ctx->RenderMode == GL_SELECT) { + _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); + } +} diff --git a/mesalib/src/mesa/tnl/t_vb_cliptmp.h b/mesalib/src/mesa/tnl/t_vb_cliptmp.h new file mode 100644 index 000000000..618b8b313 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_cliptmp.h @@ -0,0 +1,320 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#define CLIP_DOTPROD(K, A, B, C, D) X(K)*A + Y(K)*B + Z(K)*C + W(K)*D + +#define POLY_CLIP( PLANE_BIT, A, B, C, D ) \ +do { \ + if (mask & PLANE_BIT) { \ + GLuint idxPrev = inlist[0]; \ + GLfloat dpPrev = CLIP_DOTPROD(idxPrev, A, B, C, D ); \ + GLuint outcount = 0; \ + GLuint i; \ + \ + inlist[n] = inlist[0]; /* prevent rotation of vertices */ \ + for (i = 1; i <= n; i++) { \ + GLuint idx = inlist[i]; \ + GLfloat dp = CLIP_DOTPROD(idx, A, B, C, D ); \ + \ + if (!IS_NEGATIVE(dpPrev)) { \ + outlist[outcount++] = idxPrev; \ + } \ + \ + if (DIFFERENT_SIGNS(dp, dpPrev)) { \ + if (IS_NEGATIVE(dp)) { \ + /* Going out of bounds. Avoid division by zero as we \ + * know dp != dpPrev from DIFFERENT_SIGNS, above. \ + */ \ + GLfloat t = dp / (dp - dpPrev); \ + INTERP_4F( t, coord[newvert], coord[idx], coord[idxPrev]); \ + interp( ctx, t, newvert, idx, idxPrev, GL_TRUE ); \ + } else { \ + /* Coming back in. \ + */ \ + GLfloat t = dpPrev / (dpPrev - dp); \ + INTERP_4F( t, coord[newvert], coord[idxPrev], coord[idx]); \ + interp( ctx, t, newvert, idxPrev, idx, GL_FALSE ); \ + } \ + outlist[outcount++] = newvert++; \ + } \ + \ + idxPrev = idx; \ + dpPrev = dp; \ + } \ + \ + if (outcount < 3) \ + return; \ + \ + { \ + GLuint *tmp = inlist; \ + inlist = outlist; \ + outlist = tmp; \ + n = outcount; \ + } \ + } \ +} while (0) + + +#define LINE_CLIP(PLANE_BIT, A, B, C, D ) \ +do { \ + if (mask & PLANE_BIT) { \ + const GLfloat dp0 = CLIP_DOTPROD( v0, A, B, C, D ); \ + const GLfloat dp1 = CLIP_DOTPROD( v1, A, B, C, D ); \ + const GLboolean neg_dp0 = IS_NEGATIVE(dp0); \ + const GLboolean neg_dp1 = IS_NEGATIVE(dp1); \ + \ + /* For regular clipping, we know from the clipmask that one \ + * (or both) of these must be negative (otherwise we wouldn't \ + * be here). \ + * For userclip, there is only a single bit for all active \ + * planes, so we can end up here when there is nothing to do, \ + * hence the second IS_NEGATIVE() test: \ + */ \ + if (neg_dp0 && neg_dp1) \ + return; /* both vertices outside clip plane: discard */ \ + \ + if (neg_dp1) { \ + GLfloat t = dp1 / (dp1 - dp0); \ + if (t > t1) t1 = t; \ + } else if (neg_dp0) { \ + GLfloat t = dp0 / (dp0 - dp1); \ + if (t > t0) t0 = t; \ + } \ + if (t0 + t1 >= 1.0) \ + return; /* discard */ \ + } \ +} while (0) + + + +/* Clip a line against the viewport and user clip planes. + */ +static INLINE void +TAG(clip_line)( GLcontext *ctx, GLuint v0, GLuint v1, GLubyte mask ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + tnl_interp_func interp = tnl->Driver.Render.Interp; + GLfloat (*coord)[4] = VB->ClipPtr->data; + GLuint newvert = VB->Count; + GLfloat t0 = 0; + GLfloat t1 = 0; + GLuint p; + const GLuint v0_orig = v0; + + if (mask & CLIP_FRUSTUM_BITS) { + LINE_CLIP( CLIP_RIGHT_BIT, -1, 0, 0, 1 ); + LINE_CLIP( CLIP_LEFT_BIT, 1, 0, 0, 1 ); + LINE_CLIP( CLIP_TOP_BIT, 0, -1, 0, 1 ); + LINE_CLIP( CLIP_BOTTOM_BIT, 0, 1, 0, 1 ); + LINE_CLIP( CLIP_FAR_BIT, 0, 0, -1, 1 ); + LINE_CLIP( CLIP_NEAR_BIT, 0, 0, 1, 1 ); + } + + if (mask & CLIP_USER_BIT) { + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; + LINE_CLIP( CLIP_USER_BIT, a, b, c, d ); + } + } + } + + if (VB->ClipMask[v0]) { + INTERP_4F( t0, coord[newvert], coord[v0], coord[v1] ); + interp( ctx, t0, newvert, v0, v1, GL_FALSE ); + v0 = newvert; + newvert++; + } + else { + ASSERT(t0 == 0.0); + } + + /* Note: we need to use vertex v0_orig when computing the new + * interpolated/clipped vertex position, not the current v0 which + * may have got set when we clipped the other end of the line! + */ + if (VB->ClipMask[v1]) { + INTERP_4F( t1, coord[newvert], coord[v1], coord[v0_orig] ); + interp( ctx, t1, newvert, v1, v0_orig, GL_FALSE ); + + if (ctx->Light.ShadeModel == GL_FLAT) + tnl->Driver.Render.CopyPV( ctx, newvert, v1 ); + + v1 = newvert; + + newvert++; + } + else { + ASSERT(t1 == 0.0); + } + + tnl->Driver.Render.ClippedLine( ctx, v0, v1 ); +} + + +/* Clip a triangle against the viewport and user clip planes. + */ +static INLINE void +TAG(clip_tri)( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLubyte mask ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + tnl_interp_func interp = tnl->Driver.Render.Interp; + GLuint newvert = VB->Count; + GLfloat (*coord)[4] = VB->ClipPtr->data; + GLuint pv = v2; + GLuint vlist[2][MAX_CLIPPED_VERTICES]; + GLuint *inlist = vlist[0], *outlist = vlist[1]; + GLuint p; + GLuint n = 3; + + ASSIGN_3V(inlist, v2, v0, v1 ); /* pv rotated to slot zero */ + + if (0) { + /* print pre-clip vertex coords */ + GLuint i, j; + _mesa_printf("pre clip:\n"); + for (i = 0; i < n; i++) { + j = inlist[i]; + _mesa_printf(" %u: %u: %f, %f, %f, %f\n", + i, j, + coord[j][0], coord[j][1], coord[j][2], coord[j][3]); + assert(!IS_INF_OR_NAN(coord[j][0])); + assert(!IS_INF_OR_NAN(coord[j][1])); + assert(!IS_INF_OR_NAN(coord[j][2])); + assert(!IS_INF_OR_NAN(coord[j][3])); + } + } + + + if (mask & CLIP_FRUSTUM_BITS) { + POLY_CLIP( CLIP_RIGHT_BIT, -1, 0, 0, 1 ); + POLY_CLIP( CLIP_LEFT_BIT, 1, 0, 0, 1 ); + POLY_CLIP( CLIP_TOP_BIT, 0, -1, 0, 1 ); + POLY_CLIP( CLIP_BOTTOM_BIT, 0, 1, 0, 1 ); + POLY_CLIP( CLIP_FAR_BIT, 0, 0, -1, 1 ); + POLY_CLIP( CLIP_NEAR_BIT, 0, 0, 1, 1 ); + } + + if (mask & CLIP_USER_BIT) { + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; + POLY_CLIP( CLIP_USER_BIT, a, b, c, d ); + } + } + } + + if (ctx->Light.ShadeModel == GL_FLAT) { + if (pv != inlist[0]) { + ASSERT( inlist[0] >= VB->Count ); + tnl->Driver.Render.CopyPV( ctx, inlist[0], pv ); + } + } + + if (0) { + /* print post-clip vertex coords */ + GLuint i, j; + _mesa_printf("post clip:\n"); + for (i = 0; i < n; i++) { + j = inlist[i]; + _mesa_printf(" %u: %u: %f, %f, %f, %f\n", + i, j, + coord[j][0], coord[j][1], coord[j][2], coord[j][3]); + } + } + + tnl->Driver.Render.ClippedPolygon( ctx, inlist, n ); +} + + +/* Clip a quad against the viewport and user clip planes. + */ +static INLINE void +TAG(clip_quad)( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint v3, + GLubyte mask ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + tnl_interp_func interp = tnl->Driver.Render.Interp; + GLuint newvert = VB->Count; + GLfloat (*coord)[4] = VB->ClipPtr->data; + GLuint pv = v3; + GLuint vlist[2][MAX_CLIPPED_VERTICES]; + GLuint *inlist = vlist[0], *outlist = vlist[1]; + GLuint p; + GLuint n = 4; + + ASSIGN_4V(inlist, v3, v0, v1, v2 ); /* pv rotated to slot zero */ + + if (mask & CLIP_FRUSTUM_BITS) { + POLY_CLIP( CLIP_RIGHT_BIT, -1, 0, 0, 1 ); + POLY_CLIP( CLIP_LEFT_BIT, 1, 0, 0, 1 ); + POLY_CLIP( CLIP_TOP_BIT, 0, -1, 0, 1 ); + POLY_CLIP( CLIP_BOTTOM_BIT, 0, 1, 0, 1 ); + POLY_CLIP( CLIP_FAR_BIT, 0, 0, -1, 1 ); + POLY_CLIP( CLIP_NEAR_BIT, 0, 0, 1, 1 ); + } + + if (mask & CLIP_USER_BIT) { + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; + POLY_CLIP( CLIP_USER_BIT, a, b, c, d ); + } + } + } + + if (ctx->Light.ShadeModel == GL_FLAT) { + if (pv != inlist[0]) { + ASSERT( inlist[0] >= VB->Count ); + tnl->Driver.Render.CopyPV( ctx, inlist[0], pv ); + } + } + + tnl->Driver.Render.ClippedPolygon( ctx, inlist, n ); +} + +#undef W +#undef Z +#undef Y +#undef X +#undef SIZE +#undef TAG +#undef POLY_CLIP +#undef LINE_CLIP diff --git a/mesalib/src/mesa/tnl/t_vb_cull.c b/mesalib/src/mesa/tnl/t_vb_cull.c new file mode 100644 index 000000000..712901acf --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_cull.c @@ -0,0 +1,97 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + + +/* EXT_vertex_cull. Not really a big win, but probably depends on + * your application. This stage not included in the default pipeline. + */ +static GLboolean run_cull_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + const GLfloat a = ctx->Transform.CullObjPos[0]; + const GLfloat b = ctx->Transform.CullObjPos[1]; + const GLfloat c = ctx->Transform.CullObjPos[2]; + GLfloat *norm = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + GLuint stride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + GLuint count = VB->Count; + GLuint i; + + if (ctx->VertexProgram._Current || + !ctx->Transform.CullVertexFlag) + return GL_TRUE; + + VB->ClipOrMask &= ~CLIP_CULL_BIT; + VB->ClipAndMask |= CLIP_CULL_BIT; + + for (i = 0 ; i < count ; i++) { + GLfloat dp = (norm[0] * a + + norm[1] * b + + norm[2] * c); + + if (dp < 0) { + VB->ClipMask[i] |= CLIP_CULL_BIT; + VB->ClipOrMask |= CLIP_CULL_BIT; + } + else { + VB->ClipMask[i] &= ~CLIP_CULL_BIT; + VB->ClipAndMask &= ~CLIP_CULL_BIT; + } + + STRIDE_F(norm, stride); + } + + return !(VB->ClipAndMask & CLIP_CULL_BIT); +} + + + +const struct tnl_pipeline_stage _tnl_vertex_cull_stage = +{ + "EXT_cull_vertex", + NULL, /* private data */ + NULL, /* ctr */ + NULL, /* destructor */ + NULL, + run_cull_stage /* run -- initially set to init */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_fog.c b/mesalib/src/mesa/tnl/t_vb_fog.c new file mode 100644 index 000000000..f3a7bd49f --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_fog.c @@ -0,0 +1,277 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + +struct fog_stage_data { + GLvector4f fogcoord; /* has actual storage allocated */ +}; + +#define FOG_STAGE_DATA(stage) ((struct fog_stage_data *)stage->privatePtr) + +#define FOG_EXP_TABLE_SIZE 256 +#define FOG_MAX (10.0) +#define EXP_FOG_MAX .0006595 +#define FOG_INCR (FOG_MAX/FOG_EXP_TABLE_SIZE) +static GLfloat exp_table[FOG_EXP_TABLE_SIZE]; +static GLfloat inited = 0; + +#if 1 +#define NEG_EXP( result, narg ) \ +do { \ + GLfloat f = (GLfloat) (narg * (1.0/FOG_INCR)); \ + GLint k = (GLint) f; \ + if (k > FOG_EXP_TABLE_SIZE-2) \ + result = (GLfloat) EXP_FOG_MAX; \ + else \ + result = exp_table[k] + (f-k)*(exp_table[k+1]-exp_table[k]); \ +} while (0) +#else +#define NEG_EXP( result, narg ) \ +do { \ + result = exp(-narg); \ +} while (0) +#endif + + +/** + * Initialize the exp_table[] lookup table for approximating exp(). + */ +static void +init_static_data( void ) +{ + GLfloat f = 0.0F; + GLint i = 0; + for ( ; i < FOG_EXP_TABLE_SIZE ; i++, f += FOG_INCR) { + exp_table[i] = EXPF(-f); + } + inited = 1; +} + + +/** + * Compute per-vertex fog blend factors from fog coordinates by + * evaluating the GL_LINEAR, GL_EXP or GL_EXP2 fog function. + * Fog coordinates are distances from the eye (typically between the + * near and far clip plane distances). + * Note that fogcoords may be negative, if eye z is source absolute + * value must be taken earlier. + * Fog blend factors are in the range [0,1]. + */ +static void +compute_fog_blend_factors(GLcontext *ctx, GLvector4f *out, const GLvector4f *in) +{ + GLfloat end = ctx->Fog.End; + GLfloat *v = in->start; + GLuint stride = in->stride; + GLuint n = in->count; + GLfloat (*data)[4] = out->data; + GLfloat d; + GLuint i; + + out->count = in->count; + + switch (ctx->Fog.Mode) { + case GL_LINEAR: + if (ctx->Fog.Start == ctx->Fog.End) + d = 1.0F; + else + d = 1.0F / (ctx->Fog.End - ctx->Fog.Start); + for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) { + const GLfloat z = *v; + GLfloat f = (end - z) * d; + data[i][0] = CLAMP(f, 0.0F, 1.0F); + } + break; + case GL_EXP: + d = ctx->Fog.Density; + for ( i = 0 ; i < n ; i++, STRIDE_F(v,stride)) { + const GLfloat z = *v; + NEG_EXP( data[i][0], d * z ); + } + break; + case GL_EXP2: + d = ctx->Fog.Density*ctx->Fog.Density; + for ( i = 0 ; i < n ; i++, STRIDE_F(v, stride)) { + const GLfloat z = *v; + NEG_EXP( data[i][0], d * z * z ); + } + break; + default: + _mesa_problem(ctx, "Bad fog mode in make_fog_coord"); + return; + } +} + + +static GLboolean +run_fog_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + struct fog_stage_data *store = FOG_STAGE_DATA(stage); + GLvector4f *input; + + + if (!ctx->Fog.Enabled) + return GL_TRUE; + + if (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT && !ctx->VertexProgram._Current) { + GLuint i; + GLfloat *coord; + /* Fog is computed from vertex or fragment Z values */ + /* source = VB->ObjPtr or VB->EyePtr coords */ + /* dest = VB->AttribPtr[_TNL_ATTRIB_FOG] = fog stage private storage */ + VB->AttribPtr[_TNL_ATTRIB_FOG] = &store->fogcoord; + + if (!ctx->_NeedEyeCoords) { + /* compute fog coords from object coords */ + const GLfloat *m = ctx->ModelviewMatrixStack.Top->m; + GLfloat plane[4]; + + /* Use this to store calculated eye z values: + */ + input = &store->fogcoord; + + plane[0] = m[2]; + plane[1] = m[6]; + plane[2] = m[10]; + plane[3] = m[14]; + /* Full eye coords weren't required, just calculate the + * eye Z values. + */ + _mesa_dotprod_tab[VB->ObjPtr->size]( (GLfloat *) input->data, + 4 * sizeof(GLfloat), + VB->ObjPtr, plane ); + + input->count = VB->ObjPtr->count; + + /* make sure coords are really positive + NOTE should avoid going through array twice */ + coord = input->start; + for (i = 0; i < input->count; i++) { + *coord = FABSF(*coord); + STRIDE_F(coord, input->stride); + } + } + else { + /* fog coordinates = eye Z coordinates - need to copy for ABS */ + input = &store->fogcoord; + + if (VB->EyePtr->size < 2) + _mesa_vector4f_clean_elem( VB->EyePtr, VB->Count, 2 ); + + input->stride = 4 * sizeof(GLfloat); + input->count = VB->EyePtr->count; + coord = VB->EyePtr->start; + for (i = 0 ; i < VB->EyePtr->count; i++) { + input->data[i][0] = FABSF(coord[2]); + STRIDE_F(coord, VB->EyePtr->stride); + } + } + } + else { + /* use glFogCoord() coordinates */ + input = VB->AttribPtr[_TNL_ATTRIB_FOG]; /* source data */ + + /* input->count may be one if glFogCoord was only called once + * before glBegin. But we need to compute fog for all vertices. + */ + input->count = VB->ObjPtr->count; + + VB->AttribPtr[_TNL_ATTRIB_FOG] = &store->fogcoord; /* dest data */ + } + + if (tnl->_DoVertexFog) { + /* compute blend factors from fog coordinates */ + compute_fog_blend_factors( ctx, VB->AttribPtr[_TNL_ATTRIB_FOG], input ); + } + else { + /* results = incoming fog coords (compute fog per-fragment later) */ + VB->AttribPtr[_TNL_ATTRIB_FOG] = input; + } + + VB->FogCoordPtr = VB->AttribPtr[_TNL_ATTRIB_FOG]; + return GL_TRUE; +} + + + +/* Called the first time stage->run() is invoked. + */ +static GLboolean +alloc_fog_data(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct fog_stage_data *store; + stage->privatePtr = MALLOC(sizeof(*store)); + store = FOG_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + _mesa_vector4f_alloc( &store->fogcoord, 0, tnl->vb.Size, 32 ); + + if (!inited) + init_static_data(); + + return GL_TRUE; +} + + +static void +free_fog_data(struct tnl_pipeline_stage *stage) +{ + struct fog_stage_data *store = FOG_STAGE_DATA(stage); + if (store) { + _mesa_vector4f_free( &store->fogcoord ); + FREE( store ); + stage->privatePtr = NULL; + } +} + + +const struct tnl_pipeline_stage _tnl_fog_coordinate_stage = +{ + "build fog coordinates", /* name */ + NULL, /* private_data */ + alloc_fog_data, /* dtr */ + free_fog_data, /* dtr */ + NULL, /* check */ + run_fog_stage /* run -- initially set to init. */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_light.c b/mesalib/src/mesa/tnl/t_vb_light.c new file mode 100644 index 000000000..f47f99397 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_light.c @@ -0,0 +1,362 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/light.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/simple_list.h" +#include "main/mtypes.h" + +#include "math/m_translate.h" + +#include "t_context.h" +#include "t_pipeline.h" + +#define LIGHT_TWOSIDE 0x1 +#define LIGHT_MATERIAL 0x2 +#define MAX_LIGHT_FUNC 0x4 + +typedef void (*light_func)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ); + +/** + * Information for updating current material attributes from vertex color, + * for GL_COLOR_MATERIAL. + */ +struct material_cursor { + const GLfloat *ptr; /* points to src vertex color (in VB array) */ + GLuint stride; /* stride to next vertex color (bytes) */ + GLfloat *current; /* points to material attribute to update */ + GLuint size; /* vertex/color size: 1, 2, 3 or 4 */ +}; + +/** + * Data private to this pipeline stage. + */ +struct light_stage_data { + GLvector4f Input; + GLvector4f LitColor[2]; + GLvector4f LitSecondary[2]; + GLvector4f LitIndex[2]; + light_func *light_func_tab; + + struct material_cursor mat[MAT_ATTRIB_MAX]; + GLuint mat_count; + GLuint mat_bitmask; +}; + + +#define LIGHT_STAGE_DATA(stage) ((struct light_stage_data *)(stage->privatePtr)) + + + +/** + * In the case of colormaterial, the effected material attributes + * should already have been bound to point to the incoming color data, + * prior to running the pipeline. + * This function copies the vertex's color to the material attributes + * which are tracking glColor. + * It's called per-vertex in the lighting loop. + */ +static void +update_materials(GLcontext *ctx, struct light_stage_data *store) +{ + GLuint i; + + for (i = 0 ; i < store->mat_count ; i++) { + /* update the material */ + COPY_CLEAN_4V(store->mat[i].current, store->mat[i].size, store->mat[i].ptr); + /* increment src vertex color pointer */ + STRIDE_F(store->mat[i].ptr, store->mat[i].stride); + } + + /* recompute derived light/material values */ + _mesa_update_material( ctx, store->mat_bitmask ); + /* XXX we should only call this if we're tracking/changing the specular + * exponent. + */ + _mesa_validate_all_lighting_tables( ctx ); +} + + +/** + * Prepare things prior to running the lighting stage. + * Return number of material attributes which will track vertex color. + */ +static GLuint +prepare_materials(GLcontext *ctx, + struct vertex_buffer *VB, struct light_stage_data *store) +{ + GLuint i; + + store->mat_count = 0; + store->mat_bitmask = 0; + + /* Examine the ColorMaterialBitmask to determine which materials + * track vertex color. Override the material attribute's pointer + * with the color pointer for each one. + */ + if (ctx->Light.ColorMaterialEnabled) { + const GLuint bitmask = ctx->Light.ColorMaterialBitmask; + for (i = 0 ; i < MAT_ATTRIB_MAX ; i++) + if (bitmask & (1<<i)) + VB->AttribPtr[_TNL_ATTRIB_MAT_FRONT_AMBIENT + i] = VB->ColorPtr[0]; + } + + /* Now, for each material attribute that's tracking vertex color, save + * some values (ptr, stride, size, current) that we'll need in + * update_materials(), above, that'll actually copy the vertex color to + * the material attribute(s). + */ + for (i = _TNL_FIRST_MAT; i <= _TNL_LAST_MAT; i++) { + if (VB->AttribPtr[i]->stride) { + const GLuint j = store->mat_count++; + const GLuint attr = i - _TNL_ATTRIB_MAT_FRONT_AMBIENT; + store->mat[j].ptr = VB->AttribPtr[i]->start; + store->mat[j].stride = VB->AttribPtr[i]->stride; + store->mat[j].size = VB->AttribPtr[i]->size; + store->mat[j].current = ctx->Light.Material.Attrib[attr]; + store->mat_bitmask |= (1<<attr); + } + } + + /* FIXME: Is this already done? + */ + _mesa_update_material( ctx, ~0 ); + _mesa_validate_all_lighting_tables( ctx ); + + return store->mat_count; +} + +/* Tables for all the shading functions. + */ +static light_func _tnl_light_tab[MAX_LIGHT_FUNC]; +static light_func _tnl_light_fast_tab[MAX_LIGHT_FUNC]; +static light_func _tnl_light_fast_single_tab[MAX_LIGHT_FUNC]; +static light_func _tnl_light_spec_tab[MAX_LIGHT_FUNC]; +static light_func _tnl_light_ci_tab[MAX_LIGHT_FUNC]; + +#define TAG(x) x +#define IDX (0) +#include "t_vb_lighttmp.h" + +#define TAG(x) x##_twoside +#define IDX (LIGHT_TWOSIDE) +#include "t_vb_lighttmp.h" + +#define TAG(x) x##_material +#define IDX (LIGHT_MATERIAL) +#include "t_vb_lighttmp.h" + +#define TAG(x) x##_twoside_material +#define IDX (LIGHT_TWOSIDE|LIGHT_MATERIAL) +#include "t_vb_lighttmp.h" + + +static void init_lighting_tables( void ) +{ + static int done; + + if (!done) { + init_light_tab(); + init_light_tab_twoside(); + init_light_tab_material(); + init_light_tab_twoside_material(); + done = 1; + } +} + + +static GLboolean run_lighting( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLvector4f *input = ctx->_NeedEyeCoords ? VB->EyePtr : VB->ObjPtr; + GLuint idx; + + if (!ctx->Light.Enabled || ctx->VertexProgram._Current) + return GL_TRUE; + + /* Make sure we can talk about position x,y and z: + */ + if (input->size <= 2 && input == VB->ObjPtr) { + + _math_trans_4f( store->Input.data, + VB->ObjPtr->data, + VB->ObjPtr->stride, + GL_FLOAT, + VB->ObjPtr->size, + 0, + VB->Count ); + + if (input->size <= 2) { + /* Clean z. + */ + _mesa_vector4f_clean_elem(&store->Input, VB->Count, 2); + } + + if (input->size <= 1) { + /* Clean y. + */ + _mesa_vector4f_clean_elem(&store->Input, VB->Count, 1); + } + + input = &store->Input; + } + + idx = 0; + + if (prepare_materials( ctx, VB, store )) + idx |= LIGHT_MATERIAL; + + if (ctx->Light.Model.TwoSide) + idx |= LIGHT_TWOSIDE; + + /* The individual functions know about replaying side-effects + * vs. full re-execution. + */ + store->light_func_tab[idx]( ctx, VB, stage, input ); + + VB->AttribPtr[_TNL_ATTRIB_COLOR0] = VB->ColorPtr[0]; + VB->AttribPtr[_TNL_ATTRIB_COLOR1] = VB->SecondaryColorPtr[0]; + VB->AttribPtr[_TNL_ATTRIB_COLOR_INDEX] = VB->IndexPtr[0]; + + return GL_TRUE; +} + + +/* Called in place of do_lighting when the light table may have changed. + */ +static void validate_lighting( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + light_func *tab; + + if (!ctx->Light.Enabled || ctx->VertexProgram._Current) + return; + + if (ctx->Visual.rgbMode) { + if (ctx->Light._NeedVertices) { + if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR) + tab = _tnl_light_spec_tab; + else + tab = _tnl_light_tab; + } + else { + if (ctx->Light.EnabledList.next == ctx->Light.EnabledList.prev) + tab = _tnl_light_fast_single_tab; + else + tab = _tnl_light_fast_tab; + } + } + else + tab = _tnl_light_ci_tab; + + + LIGHT_STAGE_DATA(stage)->light_func_tab = tab; + + /* This and the above should only be done on _NEW_LIGHT: + */ + TNL_CONTEXT(ctx)->Driver.NotifyMaterialChange( ctx ); +} + + + +/* Called the first time stage->run is called. In effect, don't + * allocate data until the first time the stage is run. + */ +static GLboolean init_lighting( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct light_stage_data *store; + GLuint size = tnl->vb.Size; + + stage->privatePtr = MALLOC(sizeof(*store)); + store = LIGHT_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + /* Do onetime init. + */ + init_lighting_tables(); + + _mesa_vector4f_alloc( &store->Input, 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitColor[0], 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitColor[1], 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitSecondary[0], 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitSecondary[1], 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitIndex[0], 0, size, 32 ); + _mesa_vector4f_alloc( &store->LitIndex[1], 0, size, 32 ); + + store->LitColor[0].size = 4; + store->LitColor[1].size = 4; + store->LitSecondary[0].size = 3; + store->LitSecondary[1].size = 3; + + store->LitIndex[0].size = 1; + store->LitIndex[0].stride = sizeof(GLfloat); + store->LitIndex[1].size = 1; + store->LitIndex[1].stride = sizeof(GLfloat); + + return GL_TRUE; +} + + + + +static void dtr( struct tnl_pipeline_stage *stage ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + + if (store) { + _mesa_vector4f_free( &store->Input ); + _mesa_vector4f_free( &store->LitColor[0] ); + _mesa_vector4f_free( &store->LitColor[1] ); + _mesa_vector4f_free( &store->LitSecondary[0] ); + _mesa_vector4f_free( &store->LitSecondary[1] ); + _mesa_vector4f_free( &store->LitIndex[0] ); + _mesa_vector4f_free( &store->LitIndex[1] ); + FREE( store ); + stage->privatePtr = NULL; + } +} + +const struct tnl_pipeline_stage _tnl_lighting_stage = +{ + "lighting", /* name */ + NULL, /* private_data */ + init_lighting, + dtr, /* destroy */ + validate_lighting, + run_lighting +}; diff --git a/mesalib/src/mesa/tnl/t_vb_lighttmp.h b/mesalib/src/mesa/tnl/t_vb_lighttmp.h new file mode 100644 index 000000000..124ca3c74 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_lighttmp.h @@ -0,0 +1,824 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * + * Authors: + * Brian Paul + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#if IDX & LIGHT_TWOSIDE +# define NR_SIDES 2 +#else +# define NR_SIDES 1 +#endif + + +/* define TRACE to trace lighting code */ +/* #define TRACE 1 */ + +/* + * ctx is the current context + * VB is the vertex buffer + * stage is the lighting stage-private data + * input is the vector of eye or object-space vertex coordinates + */ +static void TAG(light_rgba_spec)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + GLfloat (*base)[3] = ctx->Light._BaseColor; + GLfloat sumA[2]; + GLuint j; + + const GLuint vstride = input->stride; + const GLfloat *vertex = (GLfloat *)input->data; + const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + + GLfloat (*Fcolor)[4] = (GLfloat (*)[4]) store->LitColor[0].data; + GLfloat (*Fspec)[4] = (GLfloat (*)[4]) store->LitSecondary[0].data; +#if IDX & LIGHT_TWOSIDE + GLfloat (*Bcolor)[4] = (GLfloat (*)[4]) store->LitColor[1].data; + GLfloat (*Bspec)[4] = (GLfloat (*)[4]) store->LitSecondary[1].data; +#endif + + const GLuint nr = VB->Count; + +#ifdef TRACE + fprintf(stderr, "%s\n", __FUNCTION__ ); +#endif + + VB->ColorPtr[0] = &store->LitColor[0]; + VB->SecondaryColorPtr[0] = &store->LitSecondary[0]; + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; + +#if IDX & LIGHT_TWOSIDE + VB->ColorPtr[1] = &store->LitColor[1]; + VB->SecondaryColorPtr[1] = &store->LitSecondary[1]; + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif + + + store->LitColor[0].stride = 16; + store->LitColor[1].stride = 16; + + for (j = 0; j < nr; j++,STRIDE_F(vertex,vstride),STRIDE_F(normal,nstride)) { + GLfloat sum[2][3], spec[2][3]; + struct gl_light *light; + +#if IDX & LIGHT_MATERIAL + update_materials( ctx, store ); + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; +#if IDX & LIGHT_TWOSIDE + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif +#endif + + COPY_3V(sum[0], base[0]); + ZERO_3V(spec[0]); + +#if IDX & LIGHT_TWOSIDE + COPY_3V(sum[1], base[1]); + ZERO_3V(spec[1]); +#endif + + /* Add contribution from each enabled light source */ + foreach (light, &ctx->Light.EnabledList) { + GLfloat n_dot_h; + GLfloat correction; + GLint side; + GLfloat contrib[3]; + GLfloat attenuation; + GLfloat VP[3]; /* unit vector from vertex to light */ + GLfloat n_dot_VP; /* n dot VP */ + GLfloat *h; + + /* compute VP and attenuation */ + if (!(light->_Flags & LIGHT_POSITIONAL)) { + /* directional light */ + COPY_3V(VP, light->_VP_inf_norm); + attenuation = light->_VP_inf_spot_attenuation; + } + else { + GLfloat d; /* distance from vertex to light */ + + SUB_3V(VP, light->_Position, vertex); + + d = (GLfloat) LEN_3FV( VP ); + + if (d > 1e-6) { + GLfloat invd = 1.0F / d; + SELF_SCALE_SCALAR_3V(VP, invd); + } + + attenuation = 1.0F / (light->ConstantAttenuation + d * + (light->LinearAttenuation + d * + light->QuadraticAttenuation)); + + /* spotlight attenuation */ + if (light->_Flags & LIGHT_SPOT) { + GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); + + if (PV_dot_dir<light->_CosCutoff) { + continue; /* this light makes no contribution */ + } + else { + GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); + GLint k = (GLint) x; + GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] + + (x-k)*light->_SpotExpTable[k][1]); + attenuation *= spot; + } + } + } + + if (attenuation < 1e-3) + continue; /* this light makes no contribution */ + + /* Compute dot product or normal and vector from V to light pos */ + n_dot_VP = DOT3( normal, VP ); + + /* Which side gets the diffuse & specular terms? */ + if (n_dot_VP < 0.0F) { + ACC_SCALE_SCALAR_3V(sum[0], attenuation, light->_MatAmbient[0]); +#if IDX & LIGHT_TWOSIDE + side = 1; + correction = -1; + n_dot_VP = -n_dot_VP; +#else + continue; +#endif + } + else { +#if IDX & LIGHT_TWOSIDE + ACC_SCALE_SCALAR_3V( sum[1], attenuation, light->_MatAmbient[1]); +#endif + side = 0; + correction = 1; + } + + /* diffuse term */ + COPY_3V(contrib, light->_MatAmbient[side]); + ACC_SCALE_SCALAR_3V(contrib, n_dot_VP, light->_MatDiffuse[side]); + ACC_SCALE_SCALAR_3V(sum[side], attenuation, contrib ); + + /* specular term - cannibalize VP... */ + if (ctx->Light.Model.LocalViewer) { + GLfloat v[3]; + COPY_3V(v, vertex); + NORMALIZE_3FV(v); + SUB_3V(VP, VP, v); /* h = VP + VPe */ + h = VP; + NORMALIZE_3FV(h); + } + else if (light->_Flags & LIGHT_POSITIONAL) { + h = VP; + ACC_3V(h, ctx->_EyeZDir); + NORMALIZE_3FV(h); + } + else { + h = light->_h_inf_norm; + } + + n_dot_h = correction * DOT3(normal, h); + + if (n_dot_h > 0.0F) { + GLfloat spec_coef; + struct gl_shine_tab *tab = ctx->_ShineTable[side]; + GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef ); + + if (spec_coef > 1.0e-10) { + spec_coef *= attenuation; + ACC_SCALE_SCALAR_3V( spec[side], spec_coef, + light->_MatSpecular[side]); + } + } + } /*loop over lights*/ + + COPY_3V( Fcolor[j], sum[0] ); + COPY_3V( Fspec[j], spec[0] ); + Fcolor[j][3] = sumA[0]; + +#if IDX & LIGHT_TWOSIDE + COPY_3V( Bcolor[j], sum[1] ); + COPY_3V( Bspec[j], spec[1] ); + Bcolor[j][3] = sumA[1]; +#endif + } +} + + +static void TAG(light_rgba)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + GLuint j; + + GLfloat (*base)[3] = ctx->Light._BaseColor; + GLfloat sumA[2]; + + const GLuint vstride = input->stride; + const GLfloat *vertex = (GLfloat *) input->data; + const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + + GLfloat (*Fcolor)[4] = (GLfloat (*)[4]) store->LitColor[0].data; +#if IDX & LIGHT_TWOSIDE + GLfloat (*Bcolor)[4] = (GLfloat (*)[4]) store->LitColor[1].data; +#endif + + const GLuint nr = VB->Count; + +#ifdef TRACE + fprintf(stderr, "%s\n", __FUNCTION__ ); +#endif + + VB->ColorPtr[0] = &store->LitColor[0]; + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; + +#if IDX & LIGHT_TWOSIDE + VB->ColorPtr[1] = &store->LitColor[1]; + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif + + store->LitColor[0].stride = 16; + store->LitColor[1].stride = 16; + + for (j = 0; j < nr; j++,STRIDE_F(vertex,vstride),STRIDE_F(normal,nstride)) { + GLfloat sum[2][3]; + struct gl_light *light; + +#if IDX & LIGHT_MATERIAL + update_materials( ctx, store ); + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; +#if IDX & LIGHT_TWOSIDE + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif +#endif + + COPY_3V(sum[0], base[0]); + +#if IDX & LIGHT_TWOSIDE + COPY_3V(sum[1], base[1]); +#endif + + /* Add contribution from each enabled light source */ + foreach (light, &ctx->Light.EnabledList) { + + GLfloat n_dot_h; + GLfloat correction; + GLint side; + GLfloat contrib[3]; + GLfloat attenuation = 1.0; + GLfloat VP[3]; /* unit vector from vertex to light */ + GLfloat n_dot_VP; /* n dot VP */ + GLfloat *h; + + /* compute VP and attenuation */ + if (!(light->_Flags & LIGHT_POSITIONAL)) { + /* directional light */ + COPY_3V(VP, light->_VP_inf_norm); + attenuation = light->_VP_inf_spot_attenuation; + } + else { + GLfloat d; /* distance from vertex to light */ + + + SUB_3V(VP, light->_Position, vertex); + + d = (GLfloat) LEN_3FV( VP ); + + if ( d > 1e-6) { + GLfloat invd = 1.0F / d; + SELF_SCALE_SCALAR_3V(VP, invd); + } + + attenuation = 1.0F / (light->ConstantAttenuation + d * + (light->LinearAttenuation + d * + light->QuadraticAttenuation)); + + /* spotlight attenuation */ + if (light->_Flags & LIGHT_SPOT) { + GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); + + if (PV_dot_dir<light->_CosCutoff) { + continue; /* this light makes no contribution */ + } + else { + GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); + GLint k = (GLint) x; + GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] + + (x-k)*light->_SpotExpTable[k][1]); + attenuation *= spot; + } + } + } + + if (attenuation < 1e-3) + continue; /* this light makes no contribution */ + + /* Compute dot product or normal and vector from V to light pos */ + n_dot_VP = DOT3( normal, VP ); + + /* which side are we lighting? */ + if (n_dot_VP < 0.0F) { + ACC_SCALE_SCALAR_3V(sum[0], attenuation, light->_MatAmbient[0]); +#if IDX & LIGHT_TWOSIDE + side = 1; + correction = -1; + n_dot_VP = -n_dot_VP; +#else + continue; +#endif + } + else { +#if IDX & LIGHT_TWOSIDE + ACC_SCALE_SCALAR_3V( sum[1], attenuation, light->_MatAmbient[1]); +#endif + side = 0; + correction = 1; + } + + COPY_3V(contrib, light->_MatAmbient[side]); + + /* diffuse term */ + ACC_SCALE_SCALAR_3V(contrib, n_dot_VP, light->_MatDiffuse[side]); + + /* specular term - cannibalize VP... */ + { + if (ctx->Light.Model.LocalViewer) { + GLfloat v[3]; + COPY_3V(v, vertex); + NORMALIZE_3FV(v); + SUB_3V(VP, VP, v); /* h = VP + VPe */ + h = VP; + NORMALIZE_3FV(h); + } + else if (light->_Flags & LIGHT_POSITIONAL) { + h = VP; + ACC_3V(h, ctx->_EyeZDir); + NORMALIZE_3FV(h); + } + else { + h = light->_h_inf_norm; + } + + n_dot_h = correction * DOT3(normal, h); + + if (n_dot_h > 0.0F) + { + GLfloat spec_coef; + struct gl_shine_tab *tab = ctx->_ShineTable[side]; + + GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef ); + + ACC_SCALE_SCALAR_3V( contrib, spec_coef, + light->_MatSpecular[side]); + } + } + + ACC_SCALE_SCALAR_3V( sum[side], attenuation, contrib ); + } + + COPY_3V( Fcolor[j], sum[0] ); + Fcolor[j][3] = sumA[0]; + +#if IDX & LIGHT_TWOSIDE + COPY_3V( Bcolor[j], sum[1] ); + Bcolor[j][3] = sumA[1]; +#endif + } +} + + + + +/* As below, but with just a single light. + */ +static void TAG(light_fast_rgba_single)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ) + +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + GLfloat (*Fcolor)[4] = (GLfloat (*)[4]) store->LitColor[0].data; +#if IDX & LIGHT_TWOSIDE + GLfloat (*Bcolor)[4] = (GLfloat (*)[4]) store->LitColor[1].data; +#endif + const struct gl_light *light = ctx->Light.EnabledList.next; + GLuint j = 0; + GLfloat base[2][4]; +#if IDX & LIGHT_MATERIAL + const GLuint nr = VB->Count; +#else + const GLuint nr = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->count; +#endif + +#ifdef TRACE + fprintf(stderr, "%s\n", __FUNCTION__ ); +#endif + + (void) input; /* doesn't refer to Eye or Obj */ + + VB->ColorPtr[0] = &store->LitColor[0]; +#if IDX & LIGHT_TWOSIDE + VB->ColorPtr[1] = &store->LitColor[1]; +#endif + + if (nr > 1) { + store->LitColor[0].stride = 16; + store->LitColor[1].stride = 16; + } + else { + store->LitColor[0].stride = 0; + store->LitColor[1].stride = 0; + } + + for (j = 0; j < nr; j++, STRIDE_F(normal,nstride)) { + + GLfloat n_dot_VP; + +#if IDX & LIGHT_MATERIAL + update_materials( ctx, store ); +#endif + + /* No attenuation, so incoporate _MatAmbient into base color. + */ +#if !(IDX & LIGHT_MATERIAL) + if ( j == 0 ) +#endif + { + COPY_3V(base[0], light->_MatAmbient[0]); + ACC_3V(base[0], ctx->Light._BaseColor[0] ); + base[0][3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; + +#if IDX & LIGHT_TWOSIDE + COPY_3V(base[1], light->_MatAmbient[1]); + ACC_3V(base[1], ctx->Light._BaseColor[1]); + base[1][3] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif + } + + n_dot_VP = DOT3(normal, light->_VP_inf_norm); + + if (n_dot_VP < 0.0F) { +#if IDX & LIGHT_TWOSIDE + GLfloat n_dot_h = -DOT3(normal, light->_h_inf_norm); + GLfloat sum[3]; + COPY_3V(sum, base[1]); + ACC_SCALE_SCALAR_3V(sum, -n_dot_VP, light->_MatDiffuse[1]); + if (n_dot_h > 0.0F) { + GLfloat spec; + GET_SHINE_TAB_ENTRY( ctx->_ShineTable[1], n_dot_h, spec ); + ACC_SCALE_SCALAR_3V(sum, spec, light->_MatSpecular[1]); + } + COPY_3V(Bcolor[j], sum ); + Bcolor[j][3] = base[1][3]; +#endif + COPY_4FV(Fcolor[j], base[0]); + } + else { + GLfloat n_dot_h = DOT3(normal, light->_h_inf_norm); + GLfloat sum[3]; + COPY_3V(sum, base[0]); + ACC_SCALE_SCALAR_3V(sum, n_dot_VP, light->_MatDiffuse[0]); + if (n_dot_h > 0.0F) { + GLfloat spec; + GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec ); + ACC_SCALE_SCALAR_3V(sum, spec, light->_MatSpecular[0]); + + } + COPY_3V(Fcolor[j], sum ); + Fcolor[j][3] = base[0][3]; +#if IDX & LIGHT_TWOSIDE + COPY_4FV(Bcolor[j], base[1]); +#endif + } + } +} + + +/* Light infinite lights + */ +static void TAG(light_fast_rgba)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + GLfloat sumA[2]; + const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + GLfloat (*Fcolor)[4] = (GLfloat (*)[4]) store->LitColor[0].data; +#if IDX & LIGHT_TWOSIDE + GLfloat (*Bcolor)[4] = (GLfloat (*)[4]) store->LitColor[1].data; +#endif + GLuint j = 0; +#if IDX & LIGHT_MATERIAL + const GLuint nr = VB->Count; +#else + const GLuint nr = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->count; +#endif + const struct gl_light *light; + +#ifdef TRACE + fprintf(stderr, "%s %d\n", __FUNCTION__, nr ); +#endif + + (void) input; + + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; + + VB->ColorPtr[0] = &store->LitColor[0]; +#if IDX & LIGHT_TWOSIDE + VB->ColorPtr[1] = &store->LitColor[1]; +#endif + + if (nr > 1) { + store->LitColor[0].stride = 16; + store->LitColor[1].stride = 16; + } + else { + store->LitColor[0].stride = 0; + store->LitColor[1].stride = 0; + } + + for (j = 0; j < nr; j++, STRIDE_F(normal,nstride)) { + + GLfloat sum[2][3]; + +#if IDX & LIGHT_MATERIAL + update_materials( ctx, store ); + + sumA[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3]; +#if IDX & LIGHT_TWOSIDE + sumA[1] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3]; +#endif +#endif + + + COPY_3V(sum[0], ctx->Light._BaseColor[0]); +#if IDX & LIGHT_TWOSIDE + COPY_3V(sum[1], ctx->Light._BaseColor[1]); +#endif + + foreach (light, &ctx->Light.EnabledList) { + GLfloat n_dot_h, n_dot_VP, spec; + + ACC_3V(sum[0], light->_MatAmbient[0]); +#if IDX & LIGHT_TWOSIDE + ACC_3V(sum[1], light->_MatAmbient[1]); +#endif + + n_dot_VP = DOT3(normal, light->_VP_inf_norm); + + if (n_dot_VP > 0.0F) { + ACC_SCALE_SCALAR_3V(sum[0], n_dot_VP, light->_MatDiffuse[0]); + n_dot_h = DOT3(normal, light->_h_inf_norm); + if (n_dot_h > 0.0F) { + struct gl_shine_tab *tab = ctx->_ShineTable[0]; + GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec ); + ACC_SCALE_SCALAR_3V( sum[0], spec, light->_MatSpecular[0]); + } + } +#if IDX & LIGHT_TWOSIDE + else { + ACC_SCALE_SCALAR_3V(sum[1], -n_dot_VP, light->_MatDiffuse[1]); + n_dot_h = -DOT3(normal, light->_h_inf_norm); + if (n_dot_h > 0.0F) { + struct gl_shine_tab *tab = ctx->_ShineTable[1]; + GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec ); + ACC_SCALE_SCALAR_3V( sum[1], spec, light->_MatSpecular[1]); + } + } +#endif + } + + COPY_3V( Fcolor[j], sum[0] ); + Fcolor[j][3] = sumA[0]; + +#if IDX & LIGHT_TWOSIDE + COPY_3V( Bcolor[j], sum[1] ); + Bcolor[j][3] = sumA[1]; +#endif + } +} + + + + + +/* + * Use current lighting/material settings to compute the color indexes + * for an array of vertices. + * Input: n - number of vertices to light + * side - 0=use front material, 1=use back material + * vertex - array of [n] vertex position in eye coordinates + * normal - array of [n] surface normal vector + * Output: indexResult - resulting array of [n] color indexes + */ +static void TAG(light_ci)( GLcontext *ctx, + struct vertex_buffer *VB, + struct tnl_pipeline_stage *stage, + GLvector4f *input ) +{ + struct light_stage_data *store = LIGHT_STAGE_DATA(stage); + GLuint j; + const GLuint vstride = input->stride; + const GLfloat *vertex = (GLfloat *) input->data; + const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; + const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; + GLfloat *indexResult[2]; + const GLuint nr = VB->Count; + +#ifdef TRACE + fprintf(stderr, "%s\n", __FUNCTION__ ); +#endif + + VB->IndexPtr[0] = &store->LitIndex[0]; +#if IDX & LIGHT_TWOSIDE + VB->IndexPtr[1] = &store->LitIndex[1]; +#endif + + indexResult[0] = (GLfloat *)VB->IndexPtr[0]->data; +#if IDX & LIGHT_TWOSIDE + indexResult[1] = (GLfloat *)VB->IndexPtr[1]->data; +#endif + + /* loop over vertices */ + for (j=0; j<nr; j++,STRIDE_F(vertex,vstride),STRIDE_F(normal, nstride)) { + GLfloat diffuse[2], specular[2]; + GLuint side = 0; + struct gl_light *light; + +#if IDX & LIGHT_MATERIAL + update_materials( ctx, store ); +#endif + + diffuse[0] = specular[0] = 0.0F; + +#if IDX & LIGHT_TWOSIDE + diffuse[1] = specular[1] = 0.0F; +#endif + + /* Accumulate diffuse and specular from each light source */ + foreach (light, &ctx->Light.EnabledList) { + + GLfloat attenuation = 1.0F; + GLfloat VP[3]; /* unit vector from vertex to light */ + GLfloat n_dot_VP; /* dot product of l and n */ + GLfloat *h, n_dot_h, correction = 1.0; + + /* compute l and attenuation */ + if (!(light->_Flags & LIGHT_POSITIONAL)) { + /* directional light */ + COPY_3V(VP, light->_VP_inf_norm); + } + else { + GLfloat d; /* distance from vertex to light */ + + SUB_3V(VP, light->_Position, vertex); + + d = (GLfloat) LEN_3FV( VP ); + if ( d > 1e-6) { + GLfloat invd = 1.0F / d; + SELF_SCALE_SCALAR_3V(VP, invd); + } + + attenuation = 1.0F / (light->ConstantAttenuation + d * + (light->LinearAttenuation + d * + light->QuadraticAttenuation)); + + /* spotlight attenuation */ + if (light->_Flags & LIGHT_SPOT) { + GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); + if (PV_dot_dir < light->_CosCutoff) { + continue; /* this light makes no contribution */ + } + else { + GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); + GLint k = (GLint) x; + GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] + + (x-k)*light->_SpotExpTable[k][1]); + attenuation *= spot; + } + } + } + + if (attenuation < 1e-3) + continue; /* this light makes no contribution */ + + n_dot_VP = DOT3( normal, VP ); + + /* which side are we lighting? */ + if (n_dot_VP < 0.0F) { +#if IDX & LIGHT_TWOSIDE + side = 1; + correction = -1; + n_dot_VP = -n_dot_VP; +#else + continue; +#endif + } + + /* accumulate diffuse term */ + diffuse[side] += n_dot_VP * light->_dli * attenuation; + + /* specular term */ + if (ctx->Light.Model.LocalViewer) { + GLfloat v[3]; + COPY_3V(v, vertex); + NORMALIZE_3FV(v); + SUB_3V(VP, VP, v); /* h = VP + VPe */ + h = VP; + NORMALIZE_3FV(h); + } + else if (light->_Flags & LIGHT_POSITIONAL) { + h = VP; + /* Strangely, disabling this addition fixes a conformance + * problem. If this code is enabled, l_sed.c fails. + */ + /*ACC_3V(h, ctx->_EyeZDir);*/ + NORMALIZE_3FV(h); + } + else { + h = light->_h_inf_norm; + } + + n_dot_h = correction * DOT3(normal, h); + if (n_dot_h > 0.0F) { + GLfloat spec_coef; + struct gl_shine_tab *tab = ctx->_ShineTable[side]; + GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef); + specular[side] += spec_coef * light->_sli * attenuation; + } + } /*loop over lights*/ + + /* Now compute final color index */ + for (side = 0 ; side < NR_SIDES ; side++) { + const GLfloat *ind = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_INDEXES + side]; + GLfloat index; + + if (specular[side] > 1.0F) { + index = ind[MAT_INDEX_SPECULAR]; + } + else { + GLfloat d_a = ind[MAT_INDEX_DIFFUSE] - ind[MAT_INDEX_AMBIENT]; + GLfloat s_a = ind[MAT_INDEX_SPECULAR] - ind[MAT_INDEX_AMBIENT]; + index = (ind[MAT_INDEX_AMBIENT] + + diffuse[side] * (1.0F-specular[side]) * d_a + + specular[side] * s_a); + if (index > ind[MAT_INDEX_SPECULAR]) { + index = ind[MAT_INDEX_SPECULAR]; + } + } + indexResult[side][j] = index; + } + } /*for vertex*/ +} + + + +static void TAG(init_light_tab)( void ) +{ + _tnl_light_tab[IDX] = TAG(light_rgba); + _tnl_light_fast_tab[IDX] = TAG(light_fast_rgba); + _tnl_light_fast_single_tab[IDX] = TAG(light_fast_rgba_single); + _tnl_light_spec_tab[IDX] = TAG(light_rgba_spec); + _tnl_light_ci_tab[IDX] = TAG(light_ci); +} + + +#undef TAG +#undef IDX +#undef NR_SIDES diff --git a/mesalib/src/mesa/tnl/t_vb_normals.c b/mesalib/src/mesa/tnl/t_vb_normals.c new file mode 100644 index 000000000..a4821cc1c --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_normals.c @@ -0,0 +1,189 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + +struct normal_stage_data { + normal_func NormalTransform; + GLvector4f normal; +}; + +#define NORMAL_STAGE_DATA(stage) ((struct normal_stage_data *)stage->privatePtr) + + +static GLboolean +run_normal_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + const GLfloat *lengths; + + if (!store->NormalTransform) + return GL_TRUE; + + /* We can only use the display list's saved normal lengths if we've + * got a transformation matrix with uniform scaling. + */ + if (_math_matrix_is_general_scale(ctx->ModelviewMatrixStack.Top)) + lengths = NULL; + else + lengths = VB->NormalLengthPtr; + + store->NormalTransform( ctx->ModelviewMatrixStack.Top, + ctx->_ModelViewInvScale, + VB->AttribPtr[_TNL_ATTRIB_NORMAL], /* input normals */ + lengths, + &store->normal ); /* resulting normals */ + + if (VB->AttribPtr[_TNL_ATTRIB_NORMAL]->count > 1) { + store->normal.stride = 4 * sizeof(GLfloat); + } + else { + store->normal.stride = 0; + } + + VB->AttribPtr[_TNL_ATTRIB_NORMAL] = &store->normal; + VB->NormalPtr = &store->normal; + + VB->NormalLengthPtr = NULL; /* no longer valid */ + return GL_TRUE; +} + + +/** + * Examine current GL state and set the store->NormalTransform pointer + * to point to the appropriate normal transformation routine. + */ +static void +validate_normal_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); + + if (ctx->VertexProgram._Current || + (!ctx->Light.Enabled && + !(ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS))) { + store->NormalTransform = NULL; + return; + } + + if (ctx->_NeedEyeCoords) { + /* Eye coordinates are needed, for whatever reasons. + * Do lighting in eye coordinates, as the GL spec says. + */ + GLuint transform = NORM_TRANSFORM_NO_ROT; + + if (_math_matrix_has_rotation(ctx->ModelviewMatrixStack.Top)) { + /* need to do full (3x3) matrix transform */ + transform = NORM_TRANSFORM; + } + + if (ctx->Transform.Normalize) { + store->NormalTransform = _mesa_normal_tab[transform | NORM_NORMALIZE]; + } + else if (ctx->Transform.RescaleNormals && + ctx->_ModelViewInvScale != 1.0) { + store->NormalTransform = _mesa_normal_tab[transform | NORM_RESCALE]; + } + else { + store->NormalTransform = _mesa_normal_tab[transform]; + } + } + else { + /* We don't need eye coordinates. + * Do lighting in object coordinates. Thus, we don't need to fully + * transform normal vectors (just leave them in object coordinates) + * but we still need to do normalization/rescaling if enabled. + */ + if (ctx->Transform.Normalize) { + store->NormalTransform = _mesa_normal_tab[NORM_NORMALIZE]; + } + else if (!ctx->Transform.RescaleNormals && + ctx->_ModelViewInvScale != 1.0) { + store->NormalTransform = _mesa_normal_tab[NORM_RESCALE]; + } + else { + store->NormalTransform = NULL; + } + } +} + + +/** + * Allocate stage's private data (storage for transformed normals). + */ +static GLboolean +alloc_normal_data(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct normal_stage_data *store; + + stage->privatePtr = _mesa_malloc(sizeof(*store)); + store = NORMAL_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + _mesa_vector4f_alloc( &store->normal, 0, tnl->vb.Size, 32 ); + return GL_TRUE; +} + + +/** + * Free stage's private data. + */ +static void +free_normal_data(struct tnl_pipeline_stage *stage) +{ + struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); + if (store) { + _mesa_vector4f_free( &store->normal ); + _mesa_free( store ); + stage->privatePtr = NULL; + } +} + + +const struct tnl_pipeline_stage _tnl_normal_transform_stage = +{ + "normal transform", /* name */ + NULL, /* privatePtr */ + alloc_normal_data, /* create */ + free_normal_data, /* destroy */ + validate_normal_stage, /* validate */ + run_normal_stage /* run */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_points.c b/mesalib/src/mesa/tnl/t_vb_points.c new file mode 100644 index 000000000..a52505b4b --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_points.c @@ -0,0 +1,114 @@ +/* + * Mesa 3-D graphics library + * Version: 7.0 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + */ + +#include "main/glheader.h" +#include "main/mtypes.h" +#include "main/dd.h" +#include "main/imports.h" +#include "t_context.h" +#include "t_pipeline.h" + + +struct point_stage_data { + GLvector4f PointSize; +}; + +#define POINT_STAGE_DATA(stage) ((struct point_stage_data *)stage->privatePtr) + + +/** + * Compute point size for each vertex from the vertex eye-space Z + * coordinate and the point size attenuation factors. + * Only done when point size attenuation is enabled and vertex program is + * disabled. + */ +static GLboolean +run_point_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + if (ctx->Point._Attenuated && !ctx->VertexProgram._Current) { + struct point_stage_data *store = POINT_STAGE_DATA(stage); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + const GLfloat *eyeCoord = (GLfloat *) VB->EyePtr->data + 2; + const GLint eyeCoordStride = VB->EyePtr->stride / sizeof(GLfloat); + const GLfloat p0 = ctx->Point.Params[0]; + const GLfloat p1 = ctx->Point.Params[1]; + const GLfloat p2 = ctx->Point.Params[2]; + const GLfloat pointSize = ctx->Point.Size; + GLfloat (*size)[4] = store->PointSize.data; + GLuint i; + + for (i = 0; i < VB->Count; i++) { + const GLfloat dist = FABSF(*eyeCoord); + const GLfloat q = p0 + dist * (p1 + dist * p2); + const GLfloat atten = (q != 0.0) ? SQRTF(1.0 / q) : 1.0; + size[i][0] = pointSize * atten; /* clamping done in rasterization */ + eyeCoord += eyeCoordStride; + } + + VB->AttribPtr[_TNL_ATTRIB_POINTSIZE] = &store->PointSize; + } + + return GL_TRUE; +} + + +static GLboolean +alloc_point_data(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct point_stage_data *store; + stage->privatePtr = _mesa_malloc(sizeof(*store)); + store = POINT_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + _mesa_vector4f_alloc( &store->PointSize, 0, VB->Size, 32 ); + return GL_TRUE; +} + + +static void +free_point_data(struct tnl_pipeline_stage *stage) +{ + struct point_stage_data *store = POINT_STAGE_DATA(stage); + if (store) { + _mesa_vector4f_free( &store->PointSize ); + _mesa_free( store ); + stage->privatePtr = NULL; + } +} + + +const struct tnl_pipeline_stage _tnl_point_attenuation_stage = +{ + "point size attenuation", /* name */ + NULL, /* stage private data */ + alloc_point_data, /* alloc data */ + free_point_data, /* destructor */ + NULL, + run_point_stage /* run */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_program.c b/mesalib/src/mesa/tnl/t_vb_program.c new file mode 100644 index 000000000..dc954bcba --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_program.c @@ -0,0 +1,563 @@ +/* + * Mesa 3-D graphics library + * Version: 7.6 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/** + * \file tnl/t_vb_program.c + * \brief Pipeline stage for executing vertex programs. + * \author Brian Paul, Keith Whitwell + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "shader/prog_instruction.h" +#include "shader/prog_statevars.h" +#include "shader/prog_execute.h" +#include "swrast/s_context.h" +#include "swrast/s_texfilter.h" + +#include "tnl/tnl.h" +#include "tnl/t_context.h" +#include "tnl/t_pipeline.h" + + +#ifdef NAN_CHECK +/** Check for NaNs and very large values */ +static INLINE void +check_float(float x) +{ + assert(!IS_INF_OR_NAN(x)); + assert(1.0e-15 <= x && x <= 1.0e15); +} +#endif + + +/*! + * Private storage for the vertex program pipeline stage. + */ +struct vp_stage_data { + /** The results of running the vertex program go into these arrays. */ + GLvector4f results[VERT_RESULT_MAX]; + + GLvector4f ndcCoords; /**< normalized device coords */ + GLubyte *clipmask; /**< clip flags */ + GLubyte ormask, andmask; /**< for clipping */ +}; + + +#define VP_STAGE_DATA(stage) ((struct vp_stage_data *)(stage->privatePtr)) + + +static void +userclip( GLcontext *ctx, + GLvector4f *clip, + GLubyte *clipmask, + GLubyte *clipormask, + GLubyte *clipandmask ) +{ + GLuint p; + + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + GLuint nr, i; + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; + GLfloat *coord = (GLfloat *)clip->data; + GLuint stride = clip->stride; + GLuint count = clip->count; + + for (nr = 0, i = 0 ; i < count ; i++) { + GLfloat dp = (coord[0] * a + + coord[1] * b + + coord[2] * c + + coord[3] * d); + + if (dp < 0) { + nr++; + clipmask[i] |= CLIP_USER_BIT; + } + + STRIDE_F(coord, stride); + } + + if (nr > 0) { + *clipormask |= CLIP_USER_BIT; + if (nr == count) { + *clipandmask |= CLIP_USER_BIT; + return; + } + } + } + } +} + + +static GLboolean +do_ndc_cliptest(GLcontext *ctx, struct vp_stage_data *store) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + /* Cliptest and perspective divide. Clip functions must clear + * the clipmask. + */ + store->ormask = 0; + store->andmask = CLIP_FRUSTUM_BITS; + + if (tnl->NeedNdcCoords) { + VB->NdcPtr = + _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr, + &store->ndcCoords, + store->clipmask, + &store->ormask, + &store->andmask ); + } + else { + VB->NdcPtr = NULL; + _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr, + NULL, + store->clipmask, + &store->ormask, + &store->andmask ); + } + + if (store->andmask) { + /* All vertices are outside the frustum */ + return GL_FALSE; + } + + /* Test userclip planes. This contributes to VB->ClipMask. + */ + /** XXX NEW_SLANG _Enabled ??? */ + if (ctx->Transform.ClipPlanesEnabled && (!ctx->VertexProgram._Enabled || + ctx->VertexProgram.Current->IsPositionInvariant)) { + userclip( ctx, + VB->ClipPtr, + store->clipmask, + &store->ormask, + &store->andmask ); + + if (store->andmask) { + return GL_FALSE; + } + } + + VB->ClipAndMask = store->andmask; + VB->ClipOrMask = store->ormask; + VB->ClipMask = store->clipmask; + + return GL_TRUE; +} + + +/** + * XXX the texture sampling code in this module is a bit of a hack. + * The texture sampling code is in swrast, though it doesn't have any + * real dependencies on the rest of swrast. It should probably be + * moved into main/ someday. + */ +static void +vp_fetch_texel(GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda, + GLuint unit, GLfloat color[4]) +{ + SWcontext *swrast = SWRAST_CONTEXT(ctx); + + /* XXX use a float-valued TextureSample routine here!!! */ + swrast->TextureSample[unit](ctx, ctx->Texture.Unit[unit]._Current, + 1, (const GLfloat (*)[4]) texcoord, + &lambda, (GLfloat (*)[4]) color); +} + + +/** + * Called via ctx->Driver.ProgramStringNotify() after a new vertex program + * string has been parsed. + */ +void +_tnl_program_string(GLcontext *ctx, GLenum target, struct gl_program *program) +{ + /* No-op. + * If we had derived anything from the program that was private to this + * stage we'd recompute/validate it here. + */ +} + + +/** + * Initialize virtual machine state prior to executing vertex program. + */ +static void +init_machine(GLcontext *ctx, struct gl_program_machine *machine) +{ + /* Input registers get initialized from the current vertex attribs */ + MEMCPY(machine->VertAttribs, ctx->Current.Attrib, + MAX_VERTEX_GENERIC_ATTRIBS * 4 * sizeof(GLfloat)); + + if (ctx->VertexProgram._Current->IsNVProgram) { + GLuint i; + /* Output/result regs are initialized to [0,0,0,1] */ + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_OUTPUTS; i++) { + ASSIGN_4V(machine->Outputs[i], 0.0F, 0.0F, 0.0F, 1.0F); + } + /* Temp regs are initialized to [0,0,0,0] */ + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_TEMPS; i++) { + ASSIGN_4V(machine->Temporaries[i], 0.0F, 0.0F, 0.0F, 0.0F); + } + for (i = 0; i < MAX_VERTEX_PROGRAM_ADDRESS_REGS; i++) { + ASSIGN_4V(machine->AddressReg[i], 0, 0, 0, 0); + } + } + + machine->NumDeriv = 0; + + /* init condition codes */ + machine->CondCodes[0] = COND_EQ; + machine->CondCodes[1] = COND_EQ; + machine->CondCodes[2] = COND_EQ; + machine->CondCodes[3] = COND_EQ; + + /* init call stack */ + machine->StackDepth = 0; + + machine->FetchTexelLod = vp_fetch_texel; + machine->FetchTexelDeriv = NULL; /* not used by vertex programs */ + + machine->Samplers = ctx->VertexProgram._Current->Base.SamplerUnits; +} + + +/** + * Map the texture images which the vertex program will access (if any). + */ +static void +map_textures(GLcontext *ctx, const struct gl_vertex_program *vp) +{ + GLuint u; + + if (!ctx->Driver.MapTexture) + return; + + for (u = 0; u < ctx->Const.MaxVertexTextureImageUnits; u++) { + if (vp->Base.TexturesUsed[u]) { + /* Note: _Current *should* correspond to the target indicated + * in TexturesUsed[u]. + */ + ctx->Driver.MapTexture(ctx, ctx->Texture.Unit[u]._Current); + } + } +} + + +/** + * Unmap the texture images which were used by the vertex program (if any). + */ +static void +unmap_textures(GLcontext *ctx, const struct gl_vertex_program *vp) +{ + GLuint u; + + if (!ctx->Driver.MapTexture) + return; + + for (u = 0; u < ctx->Const.MaxVertexTextureImageUnits; u++) { + if (vp->Base.TexturesUsed[u]) { + /* Note: _Current *should* correspond to the target indicated + * in TexturesUsed[u]. + */ + ctx->Driver.UnmapTexture(ctx, ctx->Texture.Unit[u]._Current); + } + } +} + + +/** + * This function executes vertex programs + */ +static GLboolean +run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vp_stage_data *store = VP_STAGE_DATA(stage); + struct vertex_buffer *VB = &tnl->vb; + struct gl_vertex_program *program = ctx->VertexProgram._Current; + struct gl_program_machine machine; + GLuint outputs[VERT_RESULT_MAX], numOutputs; + GLuint i, j; + + if (!program) + return GL_TRUE; + + if (program->IsNVProgram) { + _mesa_load_tracked_matrices(ctx); + } + else { + /* ARB program or vertex shader */ + _mesa_load_state_parameters(ctx, program->Base.Parameters); + } + + /* make list of outputs to save some time below */ + numOutputs = 0; + for (i = 0; i < VERT_RESULT_MAX; i++) { + if (program->Base.OutputsWritten & (1 << i)) { + outputs[numOutputs++] = i; + } + } + + map_textures(ctx, program); + + for (i = 0; i < VB->Count; i++) { + GLuint attr; + + init_machine(ctx, &machine); + +#if 0 + printf("Input %d: %f, %f, %f, %f\n", i, + VB->AttribPtr[0]->data[i][0], + VB->AttribPtr[0]->data[i][1], + VB->AttribPtr[0]->data[i][2], + VB->AttribPtr[0]->data[i][3]); + printf(" color: %f, %f, %f, %f\n", + VB->AttribPtr[3]->data[i][0], + VB->AttribPtr[3]->data[i][1], + VB->AttribPtr[3]->data[i][2], + VB->AttribPtr[3]->data[i][3]); + printf(" normal: %f, %f, %f, %f\n", + VB->AttribPtr[2]->data[i][0], + VB->AttribPtr[2]->data[i][1], + VB->AttribPtr[2]->data[i][2], + VB->AttribPtr[2]->data[i][3]); +#endif + + /* the vertex array case */ + for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) { + if (program->Base.InputsRead & (1 << attr)) { + const GLubyte *ptr = (const GLubyte*) VB->AttribPtr[attr]->data; + const GLuint size = VB->AttribPtr[attr]->size; + const GLuint stride = VB->AttribPtr[attr]->stride; + const GLfloat *data = (GLfloat *) (ptr + stride * i); +#ifdef NAN_CHECK + check_float(data[0]); + check_float(data[1]); + check_float(data[2]); + check_float(data[3]); +#endif + COPY_CLEAN_4V(machine.VertAttribs[attr], size, data); + } + } + + /* execute the program */ + _mesa_execute_program(ctx, &program->Base, &machine); + + /* copy the output registers into the VB->attribs arrays */ + for (j = 0; j < numOutputs; j++) { + const GLuint attr = outputs[j]; +#ifdef NAN_CHECK + check_float(machine.Outputs[attr][0]); + check_float(machine.Outputs[attr][1]); + check_float(machine.Outputs[attr][2]); + check_float(machine.Outputs[attr][3]); +#endif + COPY_4V(store->results[attr].data[i], machine.Outputs[attr]); + } +#ifdef NAN_CHECK + ASSERT(machine.Outputs[0][3] != 0.0F); +#endif +#if 0 + printf("HPOS: %f %f %f %f\n", + machine.Outputs[0][0], + machine.Outputs[0][1], + machine.Outputs[0][2], + machine.Outputs[0][3]); +#endif + } + + unmap_textures(ctx, program); + + /* Fixup fog and point size results if needed */ + if (program->IsNVProgram) { + if (ctx->Fog.Enabled && + (program->Base.OutputsWritten & (1 << VERT_RESULT_FOGC)) == 0) { + for (i = 0; i < VB->Count; i++) { + store->results[VERT_RESULT_FOGC].data[i][0] = 1.0; + } + } + + if (ctx->VertexProgram.PointSizeEnabled && + (program->Base.OutputsWritten & (1 << VERT_RESULT_PSIZ)) == 0) { + for (i = 0; i < VB->Count; i++) { + store->results[VERT_RESULT_PSIZ].data[i][0] = ctx->Point.Size; + } + } + } + + if (program->IsPositionInvariant) { + /* We need the exact same transform as in the fixed function path here + * to guarantee invariance, depending on compiler optimization flags + * results could be different otherwise. + */ + VB->ClipPtr = TransformRaw( &store->results[0], + &ctx->_ModelProjectMatrix, + VB->AttribPtr[0] ); + + /* Drivers expect this to be clean to element 4... + */ + switch (VB->ClipPtr->size) { + case 1: + /* impossible */ + case 2: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 ); + /* fall-through */ + case 3: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 ); + /* fall-through */ + case 4: + break; + } + } + else { + /* Setup the VB pointers so that the next pipeline stages get + * their data from the right place (the program output arrays). + */ + VB->ClipPtr = &store->results[VERT_RESULT_HPOS]; + VB->ClipPtr->size = 4; + VB->ClipPtr->count = VB->Count; + } + + VB->ColorPtr[0] = &store->results[VERT_RESULT_COL0]; + VB->ColorPtr[1] = &store->results[VERT_RESULT_BFC0]; + VB->SecondaryColorPtr[0] = &store->results[VERT_RESULT_COL1]; + VB->SecondaryColorPtr[1] = &store->results[VERT_RESULT_BFC1]; + VB->FogCoordPtr = &store->results[VERT_RESULT_FOGC]; + + VB->AttribPtr[VERT_ATTRIB_COLOR0] = &store->results[VERT_RESULT_COL0]; + VB->AttribPtr[VERT_ATTRIB_COLOR1] = &store->results[VERT_RESULT_COL1]; + VB->AttribPtr[VERT_ATTRIB_FOG] = &store->results[VERT_RESULT_FOGC]; + VB->AttribPtr[_TNL_ATTRIB_POINTSIZE] = &store->results[VERT_RESULT_PSIZ]; + + for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) { + VB->TexCoordPtr[i] = + VB->AttribPtr[_TNL_ATTRIB_TEX0 + i] + = &store->results[VERT_RESULT_TEX0 + i]; + } + + for (i = 0; i < ctx->Const.MaxVarying; i++) { + if (program->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) { + /* Note: varying results get put into the generic attributes */ + VB->AttribPtr[VERT_ATTRIB_GENERIC0+i] + = &store->results[VERT_RESULT_VAR0 + i]; + } + } + + + /* Perform NDC and cliptest operations: + */ + return do_ndc_cliptest(ctx, store); +} + + +/** + * Called the first time stage->run is called. In effect, don't + * allocate data until the first time the stage is run. + */ +static GLboolean +init_vp(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &(tnl->vb); + struct vp_stage_data *store; + const GLuint size = VB->Size; + GLuint i; + + stage->privatePtr = MALLOC(sizeof(*store)); + store = VP_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + /* Allocate arrays of vertex output values */ + for (i = 0; i < VERT_RESULT_MAX; i++) { + _mesa_vector4f_alloc( &store->results[i], 0, size, 32 ); + store->results[i].size = 4; + } + + /* a few other misc allocations */ + _mesa_vector4f_alloc( &store->ndcCoords, 0, size, 32 ); + store->clipmask = (GLubyte *) ALIGN_MALLOC(sizeof(GLubyte)*size, 32 ); + + return GL_TRUE; +} + + +/** + * Destructor for this pipeline stage. + */ +static void +dtr(struct tnl_pipeline_stage *stage) +{ + struct vp_stage_data *store = VP_STAGE_DATA(stage); + + if (store) { + GLuint i; + + /* free the vertex program result arrays */ + for (i = 0; i < VERT_RESULT_MAX; i++) + _mesa_vector4f_free( &store->results[i] ); + + /* free misc arrays */ + _mesa_vector4f_free( &store->ndcCoords ); + ALIGN_FREE( store->clipmask ); + + FREE( store ); + stage->privatePtr = NULL; + } +} + + +static void +validate_vp_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + if (ctx->VertexProgram._Current) { + _swrast_update_texture_samplers(ctx); + } +} + + + +/** + * Public description of this pipeline stage. + */ +const struct tnl_pipeline_stage _tnl_vertex_program_stage = +{ + "vertex-program", + NULL, /* private_data */ + init_vp, /* create */ + dtr, /* destroy */ + validate_vp_stage, /* validate */ + run_vp /* run -- initially set to ctr */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_render.c b/mesalib/src/mesa/tnl/t_vb_render.c new file mode 100644 index 000000000..c1bebc994 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_render.c @@ -0,0 +1,347 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +/* + * Render whole vertex buffers, including projection of vertices from + * clip space and clipping of primitives. + * + * This file makes calls to project vertices and to the point, line + * and triangle rasterizers via the function pointers: + * + * context->Driver.Render.* + * + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/enums.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "t_pipeline.h" + + + +/**********************************************************************/ +/* Clip single primitives */ +/**********************************************************************/ + + +#define W(i) coord[i][3] +#define Z(i) coord[i][2] +#define Y(i) coord[i][1] +#define X(i) coord[i][0] +#define SIZE 4 +#define TAG(x) x##_4 +#include "t_vb_cliptmp.h" + + + +/**********************************************************************/ +/* Clip and render whole begin/end objects */ +/**********************************************************************/ + +#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL) +#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx] +#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val + + +/* This does NOT include the CLIP_USER_BIT! */ +#define CLIPMASK (CLIP_FRUSTUM_BITS | CLIP_CULL_BIT) + + +/* Vertices, with the possibility of clipping. + */ +#define RENDER_POINTS( start, count ) \ + tnl->Driver.Render.Points( ctx, start, count ) + +#define RENDER_LINE( v1, v2 ) \ +do { \ + GLubyte c1 = mask[v1], c2 = mask[v2]; \ + GLubyte ormask = c1|c2; \ + if (!ormask) \ + LineFunc( ctx, v1, v2 ); \ + else if (!(c1 & c2 & CLIPMASK)) \ + clip_line_4( ctx, v1, v2, ormask ); \ +} while (0) + +#define RENDER_TRI( v1, v2, v3 ) \ +do { \ + GLubyte c1 = mask[v1], c2 = mask[v2], c3 = mask[v3]; \ + GLubyte ormask = c1|c2|c3; \ + if (!ormask) \ + TriangleFunc( ctx, v1, v2, v3 ); \ + else if (!(c1 & c2 & c3 & CLIPMASK)) \ + clip_tri_4( ctx, v1, v2, v3, ormask ); \ +} while (0) + +#define RENDER_QUAD( v1, v2, v3, v4 ) \ +do { \ + GLubyte c1 = mask[v1], c2 = mask[v2]; \ + GLubyte c3 = mask[v3], c4 = mask[v4]; \ + GLubyte ormask = c1|c2|c3|c4; \ + if (!ormask) \ + QuadFunc( ctx, v1, v2, v3, v4 ); \ + else if (!(c1 & c2 & c3 & c4 & CLIPMASK)) \ + clip_quad_4( ctx, v1, v2, v3, v4, ormask ); \ +} while (0) + + +#define LOCAL_VARS \ + TNLcontext *tnl = TNL_CONTEXT(ctx); \ + struct vertex_buffer *VB = &tnl->vb; \ + const GLuint * const elt = VB->Elts; \ + const GLubyte *mask = VB->ClipMask; \ + const GLuint sz = VB->ClipPtr->size; \ + const tnl_line_func LineFunc = tnl->Driver.Render.Line; \ + const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \ + const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \ + const GLboolean stipple = ctx->Line.StippleFlag; \ + (void) (LineFunc && TriangleFunc && QuadFunc); \ + (void) elt; (void) mask; (void) sz; (void) stipple; + +#define TAG(x) clip_##x##_verts +#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x ) +#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx ) +#define PRESERVE_VB_DEFS +#include "t_vb_rendertmp.h" + + + +/* Elts, with the possibility of clipping. + */ +#undef ELT +#undef TAG +#define ELT(x) elt[x] +#define TAG(x) clip_##x##_elts +#include "t_vb_rendertmp.h" + +/* TODO: do this for all primitives, verts and elts: + */ +static void clip_elt_triangles( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl_render_func render_tris = tnl->Driver.Render.PrimTabElts[GL_TRIANGLES]; + struct vertex_buffer *VB = &tnl->vb; + const GLuint * const elt = VB->Elts; + GLubyte *mask = VB->ClipMask; + GLuint last = count-2; + GLuint j; + (void) flags; + + tnl->Driver.Render.PrimitiveNotify( ctx, GL_TRIANGLES ); + + for (j=start; j < last; j+=3 ) { + GLubyte c1 = mask[elt[j]]; + GLubyte c2 = mask[elt[j+1]]; + GLubyte c3 = mask[elt[j+2]]; + GLubyte ormask = c1|c2|c3; + if (ormask) { + if (start < j) + render_tris( ctx, start, j, 0 ); + if (!(c1&c2&c3&CLIPMASK)) + clip_tri_4( ctx, elt[j], elt[j+1], elt[j+2], ormask ); + start = j+3; + } + } + + if (start < j) + render_tris( ctx, start, j, 0 ); +} + +/**********************************************************************/ +/* Render whole begin/end objects */ +/**********************************************************************/ + +#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL) +#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx] +#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val + + +/* Vertices, no clipping. + */ +#define RENDER_POINTS( start, count ) \ + tnl->Driver.Render.Points( ctx, start, count ) + +#define RENDER_LINE( v1, v2 ) \ + LineFunc( ctx, v1, v2 ) + +#define RENDER_TRI( v1, v2, v3 ) \ + TriangleFunc( ctx, v1, v2, v3 ) + +#define RENDER_QUAD( v1, v2, v3, v4 ) \ + QuadFunc( ctx, v1, v2, v3, v4 ) + +#define TAG(x) _tnl_##x##_verts + +#define LOCAL_VARS \ + TNLcontext *tnl = TNL_CONTEXT(ctx); \ + struct vertex_buffer *VB = &tnl->vb; \ + const GLuint * const elt = VB->Elts; \ + const tnl_line_func LineFunc = tnl->Driver.Render.Line; \ + const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \ + const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \ + const GLboolean stipple = ctx->Line.StippleFlag; \ + (void) (LineFunc && TriangleFunc && QuadFunc); \ + (void) elt; (void) stipple + +#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx ) +#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x ) +#define RENDER_TAB_QUALIFIER +#define PRESERVE_VB_DEFS +#include "t_vb_rendertmp.h" + + +/* Elts, no clipping. + */ +#undef ELT +#define TAG(x) _tnl_##x##_elts +#define ELT(x) elt[x] +#include "t_vb_rendertmp.h" + + +/**********************************************************************/ +/* Helper functions for drivers */ +/**********************************************************************/ + +void _tnl_RenderClippedPolygon( GLcontext *ctx, const GLuint *elts, GLuint n ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint *tmp = VB->Elts; + + VB->Elts = (GLuint *)elts; + tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END ); + VB->Elts = tmp; +} + +void _tnl_RenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->Driver.Render.Line( ctx, ii, jj ); +} + + + +/**********************************************************************/ +/* Clip and render whole vertex buffers */ +/**********************************************************************/ + + +static GLboolean run_render( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + tnl_render_func *tab; + GLint pass = 0; + + /* Allow the drivers to lock before projected verts are built so + * that window coordinates are guarenteed not to change before + * rendering. + */ + ASSERT(tnl->Driver.Render.Start); + + tnl->Driver.Render.Start( ctx ); + + ASSERT(tnl->Driver.Render.BuildVertices); + ASSERT(tnl->Driver.Render.PrimitiveNotify); + ASSERT(tnl->Driver.Render.Points); + ASSERT(tnl->Driver.Render.Line); + ASSERT(tnl->Driver.Render.Triangle); + ASSERT(tnl->Driver.Render.Quad); + ASSERT(tnl->Driver.Render.ResetLineStipple); + ASSERT(tnl->Driver.Render.Interp); + ASSERT(tnl->Driver.Render.CopyPV); + ASSERT(tnl->Driver.Render.ClippedLine); + ASSERT(tnl->Driver.Render.ClippedPolygon); + ASSERT(tnl->Driver.Render.Finish); + + tnl->Driver.Render.BuildVertices( ctx, 0, VB->Count, ~0 ); + + if (VB->ClipOrMask) { + tab = VB->Elts ? clip_render_tab_elts : clip_render_tab_verts; + clip_render_tab_elts[GL_TRIANGLES] = clip_elt_triangles; + } + else { + tab = (VB->Elts ? + tnl->Driver.Render.PrimTabElts : + tnl->Driver.Render.PrimTabVerts); + } + + do + { + GLuint i; + + for (i = 0 ; i < VB->PrimitiveCount ; i++) + { + GLuint prim = _tnl_translate_prim(&VB->Primitive[i]); + GLuint start = VB->Primitive[i].start; + GLuint length = VB->Primitive[i].count; + + assert((prim & PRIM_MODE_MASK) <= GL_POLYGON); + + if (MESA_VERBOSE & VERBOSE_PRIMS) + _mesa_debug(NULL, "MESA prim %s %d..%d\n", + _mesa_lookup_enum_by_nr(prim & PRIM_MODE_MASK), + start, start+length); + + if (length) + tab[prim & PRIM_MODE_MASK]( ctx, start, start + length, prim ); + } + } while (tnl->Driver.Render.Multipass && + tnl->Driver.Render.Multipass( ctx, ++pass )); + + tnl->Driver.Render.Finish( ctx ); + + return GL_FALSE; /* finished the pipe */ +} + + +/**********************************************************************/ +/* Render pipeline stage */ +/**********************************************************************/ + + + + + +const struct tnl_pipeline_stage _tnl_render_stage = +{ + "render", /* name */ + NULL, /* private data */ + NULL, /* creator */ + NULL, /* destructor */ + NULL, /* validate */ + run_render /* run */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_rendertmp.h b/mesalib/src/mesa/tnl/t_vb_rendertmp.h new file mode 100644 index 000000000..75f6f55bd --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_rendertmp.h @@ -0,0 +1,486 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#ifndef POSTFIX +#define POSTFIX +#endif + +#ifndef INIT +#define INIT(x) +#endif + +#ifndef NEED_EDGEFLAG_SETUP +#define NEED_EDGEFLAG_SETUP 0 +#define EDGEFLAG_GET(a) 0 +#define EDGEFLAG_SET(a,b) (void)b +#endif + +#ifndef RESET_STIPPLE +#define RESET_STIPPLE +#endif + +#ifndef TEST_PRIM_END +#define TEST_PRIM_END(prim) (flags & PRIM_END) +#define TEST_PRIM_BEGIN(prim) (flags & PRIM_BEGIN) +#endif + +#ifndef ELT +#define ELT(x) x +#endif + +#ifndef RENDER_TAB_QUALIFIER +#define RENDER_TAB_QUALIFIER static +#endif + +static void TAG(render_points)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + LOCAL_VARS; + (void) flags; + + INIT(GL_POINTS); + RENDER_POINTS( start, count ); + POSTFIX; +} + +static void TAG(render_lines)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_LINES); + for (j=start+1; j<count; j+=2 ) { + RESET_STIPPLE; + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_LINE( ELT(j-1), ELT(j) ); + else + RENDER_LINE( ELT(j), ELT(j-1) ); + } + POSTFIX; +} + + +static void TAG(render_line_strip)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_LINE_STRIP); + + if (TEST_PRIM_BEGIN(flags)) { + RESET_STIPPLE; + } + + for (j=start+1; j<count; j++ ) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_LINE( ELT(j-1), ELT(j) ); + else + RENDER_LINE( ELT(j), ELT(j-1) ); + } + POSTFIX; +} + + +static void TAG(render_line_loop)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint i; + LOCAL_VARS; + + (void) flags; + + INIT(GL_LINE_LOOP); + + if (start+1 < count) { + if (TEST_PRIM_BEGIN(flags)) { + RESET_STIPPLE; + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_LINE( ELT(start), ELT(start+1) ); + else + RENDER_LINE( ELT(start+1), ELT(start) ); + } + + for ( i = start+2 ; i < count ; i++) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_LINE( ELT(i-1), ELT(i) ); + else + RENDER_LINE( ELT(i), ELT(i-1) ); + } + + if ( TEST_PRIM_END(flags)) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_LINE( ELT(count-1), ELT(start) ); + else + RENDER_LINE( ELT(start), ELT(count-1) ); + } + } + + POSTFIX; +} + + +static void TAG(render_triangles)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_TRIANGLES); + if (NEED_EDGEFLAG_SETUP) { + for (j=start+2; j<count; j+=3) { + /* Leave the edgeflags as supplied by the user. + */ + RESET_STIPPLE; + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) ); + else + RENDER_TRI( ELT(j-1), ELT(j), ELT(j-2) ); + } + } else { + for (j=start+2; j<count; j+=3) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) ); + else + RENDER_TRI( ELT(j-1), ELT(j), ELT(j-2) ); + } + } + POSTFIX; +} + + + +static void TAG(render_tri_strip)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + GLuint parity = 0; + LOCAL_VARS; + + INIT(GL_TRIANGLE_STRIP); + if (NEED_EDGEFLAG_SETUP) { + for (j=start+2;j<count;j++,parity^=1) { + GLuint ej2, ej1, ej; + GLboolean ef2, ef1, ef; + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) { + ej2 = ELT(j-2+parity); + ej1 = ELT(j-1-parity); + ej = ELT(j); + } + else { + ej2 = ELT(j-1+parity); + ej1 = ELT(j-parity); + ej = ELT(j-2); + } + ef2 = EDGEFLAG_GET( ej2 ); + ef1 = EDGEFLAG_GET( ej1 ); + ef = EDGEFLAG_GET( ej ); + if (TEST_PRIM_BEGIN(flags)) { + RESET_STIPPLE; + } + EDGEFLAG_SET( ej2, GL_TRUE ); + EDGEFLAG_SET( ej1, GL_TRUE ); + EDGEFLAG_SET( ej, GL_TRUE ); + RENDER_TRI( ej2, ej1, ej ); + EDGEFLAG_SET( ej2, ef2 ); + EDGEFLAG_SET( ej1, ef1 ); + EDGEFLAG_SET( ej, ef ); + } + } else { + for (j=start+2; j<count ; j++, parity^=1) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) ); + else + RENDER_TRI( ELT(j-1+parity), ELT(j-parity), ELT(j-2) ); + } + } + POSTFIX; +} + + +static void TAG(render_tri_fan)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_TRIANGLE_FAN); + if (NEED_EDGEFLAG_SETUP) { + for (j=start+2;j<count;j++) { + /* For trifans, all edges are boundary. + */ + GLuint ejs = ELT(start); + GLuint ej1 = ELT(j-1); + GLuint ej = ELT(j); + GLboolean efs = EDGEFLAG_GET( ejs ); + GLboolean ef1 = EDGEFLAG_GET( ej1 ); + GLboolean ef = EDGEFLAG_GET( ej ); + if (TEST_PRIM_BEGIN(flags)) { + RESET_STIPPLE; + } + EDGEFLAG_SET( ejs, GL_TRUE ); + EDGEFLAG_SET( ej1, GL_TRUE ); + EDGEFLAG_SET( ej, GL_TRUE ); + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_TRI( ejs, ej1, ej); + else + RENDER_TRI( ej, ejs, ej1); + EDGEFLAG_SET( ejs, efs ); + EDGEFLAG_SET( ej1, ef1 ); + EDGEFLAG_SET( ej, ef ); + } + } else { + for (j=start+2;j<count;j++) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) + RENDER_TRI( ELT(start), ELT(j-1), ELT(j) ); + else + RENDER_TRI( ELT(j), ELT(start), ELT(j-1) ); + } + } + + POSTFIX; +} + + +static void TAG(render_poly)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j = start+2; + LOCAL_VARS; + (void) flags; + + INIT(GL_POLYGON); + if (NEED_EDGEFLAG_SETUP) { + GLboolean efstart = EDGEFLAG_GET( ELT(start) ); + GLboolean efcount = EDGEFLAG_GET( ELT(count-1) ); + + /* If the primitive does not begin here, the first edge + * is non-boundary. + */ + if (!TEST_PRIM_BEGIN(flags)) + EDGEFLAG_SET( ELT(start), GL_FALSE ); + else { + RESET_STIPPLE; + } + + /* If the primitive does not end here, the final edge is + * non-boundary. + */ + if (!TEST_PRIM_END(flags)) + EDGEFLAG_SET( ELT(count-1), GL_FALSE ); + + /* Draw the first triangles (possibly zero) + */ + if (j+1<count) { + GLboolean ef = EDGEFLAG_GET( ELT(j) ); + EDGEFLAG_SET( ELT(j), GL_FALSE ); + RENDER_TRI( ELT(j-1), ELT(j), ELT(start) ); + EDGEFLAG_SET( ELT(j), ef ); + j++; + + /* Don't render the first edge again: + */ + EDGEFLAG_SET( ELT(start), GL_FALSE ); + + for (;j+1<count;j++) { + GLboolean efj = EDGEFLAG_GET( ELT(j) ); + EDGEFLAG_SET( ELT(j), GL_FALSE ); + RENDER_TRI( ELT(j-1), ELT(j), ELT(start) ); + EDGEFLAG_SET( ELT(j), efj ); + } + } + + /* Draw the last or only triangle + */ + if (j < count) + RENDER_TRI( ELT(j-1), ELT(j), ELT(start) ); + + /* Restore the first and last edgeflags: + */ + EDGEFLAG_SET( ELT(count-1), efcount ); + EDGEFLAG_SET( ELT(start), efstart ); + + } + else { + for (j=start+2;j<count;j++) { + RENDER_TRI( ELT(j-1), ELT(j), ELT(start) ); + } + } + POSTFIX; +} + +static void TAG(render_quads)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_QUADS); + if (NEED_EDGEFLAG_SETUP) { + for (j=start+3; j<count; j+=4) { + /* Use user-specified edgeflags for quads. + */ + RESET_STIPPLE; + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT || + !ctx->Const.QuadsFollowProvokingVertexConvention) + RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) ); + else + RENDER_QUAD( ELT(j-2), ELT(j-1), ELT(j), ELT(j-3) ); + } + } else { + for (j=start+3; j<count; j+=4) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT || + !ctx->Const.QuadsFollowProvokingVertexConvention) + RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) ); + else + RENDER_QUAD( ELT(j-2), ELT(j-1), ELT(j), ELT(j-3) ); + } + } + POSTFIX; +} + +static void TAG(render_quad_strip)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + GLuint j; + LOCAL_VARS; + (void) flags; + + INIT(GL_QUAD_STRIP); + if (NEED_EDGEFLAG_SETUP) { + for (j=start+3;j<count;j+=2) { + /* All edges are boundary. Set edgeflags to 1, draw the + * quad, and restore them to the original values. + */ + GLboolean ef3 = EDGEFLAG_GET( ELT(j-3) ); + GLboolean ef2 = EDGEFLAG_GET( ELT(j-2) ); + GLboolean ef1 = EDGEFLAG_GET( ELT(j-1) ); + GLboolean ef = EDGEFLAG_GET( ELT(j) ); + if (TEST_PRIM_BEGIN(flags)) { + RESET_STIPPLE; + } + EDGEFLAG_SET( ELT(j-3), GL_TRUE ); + EDGEFLAG_SET( ELT(j-2), GL_TRUE ); + EDGEFLAG_SET( ELT(j-1), GL_TRUE ); + EDGEFLAG_SET( ELT(j), GL_TRUE ); + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT || + !ctx->Const.QuadsFollowProvokingVertexConvention) + RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) ); + else + RENDER_QUAD( ELT(j-2), ELT(j), ELT(j-1), ELT(j-3) ); + EDGEFLAG_SET( ELT(j-3), ef3 ); + EDGEFLAG_SET( ELT(j-2), ef2 ); + EDGEFLAG_SET( ELT(j-1), ef1 ); + EDGEFLAG_SET( ELT(j), ef ); + } + } else { + for (j=start+3;j<count;j+=2) { + if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT || + !ctx->Const.QuadsFollowProvokingVertexConvention) + RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) ); + else + RENDER_QUAD( ELT(j-2), ELT(j), ELT(j-1), ELT(j-3) ); + } + } + POSTFIX; +} + +static void TAG(render_noop)( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + (void)(ctx && start && count && flags); +} + +RENDER_TAB_QUALIFIER void (*TAG(render_tab)[GL_POLYGON+2])(GLcontext *, + GLuint, + GLuint, + GLuint) = +{ + TAG(render_points), + TAG(render_lines), + TAG(render_line_loop), + TAG(render_line_strip), + TAG(render_triangles), + TAG(render_tri_strip), + TAG(render_tri_fan), + TAG(render_quads), + TAG(render_quad_strip), + TAG(render_poly), + TAG(render_noop), +}; + + + +#ifndef PRESERVE_VB_DEFS +#undef RENDER_TRI +#undef RENDER_QUAD +#undef RENDER_LINE +#undef RENDER_POINTS +#undef LOCAL_VARS +#undef INIT +#undef POSTFIX +#undef RESET_STIPPLE +#undef DBG +#undef ELT +#undef RENDER_TAB_QUALIFIER +#endif + +#ifndef PRESERVE_TAG +#undef TAG +#endif + +#undef PRESERVE_VB_DEFS +#undef PRESERVE_TAG diff --git a/mesalib/src/mesa/tnl/t_vb_texgen.c b/mesalib/src/mesa/tnl/t_vb_texgen.c new file mode 100644 index 000000000..7c1819b22 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_texgen.c @@ -0,0 +1,611 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + * Keith Whitwell <keith@tungstengraphics.com> + */ + +/* + * Regarding GL_NV_texgen_reflection: + * + * Portions of this software may use or implement intellectual + * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims + * any and all warranties with respect to such intellectual property, + * including any use thereof or modifications thereto. + */ + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + +/*********************************************************************** + * Automatic texture coordinate generation (texgen) code. + */ + + +struct texgen_stage_data; + +typedef void (*texgen_func)( GLcontext *ctx, + struct texgen_stage_data *store, + GLuint unit); + + +struct texgen_stage_data { + + /* Per-texunit derived state. + */ + GLuint TexgenSize[MAX_TEXTURE_COORD_UNITS]; + texgen_func TexgenFunc[MAX_TEXTURE_COORD_UNITS]; + + /* Temporary values used in texgen. + */ + GLfloat (*tmp_f)[3]; + GLfloat *tmp_m; + + /* Buffered outputs of the stage. + */ + GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; +}; + + +#define TEXGEN_STAGE_DATA(stage) ((struct texgen_stage_data *)stage->privatePtr) + + + +static GLuint all_bits[5] = { + 0, + VEC_SIZE_1, + VEC_SIZE_2, + VEC_SIZE_3, + VEC_SIZE_4, +}; + +#define VEC_SIZE_FLAGS (VEC_SIZE_1|VEC_SIZE_2|VEC_SIZE_3|VEC_SIZE_4) + +#define TEXGEN_NEED_M (TEXGEN_SPHERE_MAP) +#define TEXGEN_NEED_F (TEXGEN_SPHERE_MAP | \ + TEXGEN_REFLECTION_MAP_NV) + + + +static void build_m3( GLfloat f[][3], GLfloat m[], + const GLvector4f *normal, + const GLvector4f *eye ) +{ + GLuint stride = eye->stride; + GLfloat *coord = (GLfloat *)eye->start; + GLuint count = eye->count; + const GLfloat *norm = normal->start; + GLuint i; + + for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { + GLfloat u[3], two_nu, fx, fy, fz; + COPY_3V( u, coord ); + NORMALIZE_3FV( u ); + two_nu = 2.0F * DOT3(norm,u); + fx = f[i][0] = u[0] - norm[0] * two_nu; + fy = f[i][1] = u[1] - norm[1] * two_nu; + fz = f[i][2] = u[2] - norm[2] * two_nu; + m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); + if (m[i] != 0.0F) { + m[i] = 0.5F * _mesa_inv_sqrtf(m[i]); + } + } +} + + + +static void build_m2( GLfloat f[][3], GLfloat m[], + const GLvector4f *normal, + const GLvector4f *eye ) +{ + GLuint stride = eye->stride; + GLfloat *coord = eye->start; + GLuint count = eye->count; + + GLfloat *norm = normal->start; + GLuint i; + + for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(norm,normal->stride)) { + GLfloat u[3], two_nu, fx, fy, fz; + COPY_2V( u, coord ); + u[2] = 0; + NORMALIZE_3FV( u ); + two_nu = 2.0F * DOT3(norm,u); + fx = f[i][0] = u[0] - norm[0] * two_nu; + fy = f[i][1] = u[1] - norm[1] * two_nu; + fz = f[i][2] = u[2] - norm[2] * two_nu; + m[i] = fx * fx + fy * fy + (fz + 1.0F) * (fz + 1.0F); + if (m[i] != 0.0F) { + m[i] = 0.5F * _mesa_inv_sqrtf(m[i]); + } + } +} + + + +typedef void (*build_m_func)( GLfloat f[][3], + GLfloat m[], + const GLvector4f *normal, + const GLvector4f *eye ); + + +static build_m_func build_m_tab[5] = { + NULL, + NULL, + build_m2, + build_m3, + build_m3 +}; + + +/* This is unusual in that we respect the stride of the output vector + * (f). This allows us to pass in either a texcoord vector4f, or a + * temporary vector3f. + */ +static void build_f3( GLfloat *f, + GLuint fstride, + const GLvector4f *normal, + const GLvector4f *eye ) +{ + GLuint stride = eye->stride; + GLfloat *coord = eye->start; + GLuint count = eye->count; + + GLfloat *norm = normal->start; + GLuint i; + + for (i=0;i<count;i++) { + GLfloat u[3], two_nu; + COPY_3V( u, coord ); + NORMALIZE_3FV( u ); + two_nu = 2.0F * DOT3(norm,u); + f[0] = u[0] - norm[0] * two_nu; + f[1] = u[1] - norm[1] * two_nu; + f[2] = u[2] - norm[2] * two_nu; + STRIDE_F(coord,stride); + STRIDE_F(f,fstride); + STRIDE_F(norm, normal->stride); + } +} + + +static void build_f2( GLfloat *f, + GLuint fstride, + const GLvector4f *normal, + const GLvector4f *eye ) +{ + GLuint stride = eye->stride; + GLfloat *coord = eye->start; + GLuint count = eye->count; + GLfloat *norm = normal->start; + GLuint i; + + for (i=0;i<count;i++) { + + GLfloat u[3], two_nu; + COPY_2V( u, coord ); + u[2] = 0; + NORMALIZE_3FV( u ); + two_nu = 2.0F * DOT3(norm,u); + f[0] = u[0] - norm[0] * two_nu; + f[1] = u[1] - norm[1] * two_nu; + f[2] = u[2] - norm[2] * two_nu; + + STRIDE_F(coord,stride); + STRIDE_F(f,fstride); + STRIDE_F(norm, normal->stride); + } +} + +typedef void (*build_f_func)( GLfloat *f, + GLuint fstride, + const GLvector4f *normal_vec, + const GLvector4f *eye ); + + + +/* Just treat 4-vectors as 3-vectors. + */ +static build_f_func build_f_tab[5] = { + NULL, + NULL, + build_f2, + build_f3, + build_f3 +}; + + + +/* Special case texgen functions. + */ +static void texgen_reflection_map_nv( GLcontext *ctx, + struct texgen_stage_data *store, + GLuint unit ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLvector4f *in = VB->AttribPtr[VERT_ATTRIB_TEX0 + unit]; + GLvector4f *out = &store->texcoord[unit]; + + build_f_tab[VB->EyePtr->size]( out->start, + out->stride, + VB->AttribPtr[_TNL_ATTRIB_NORMAL], + VB->EyePtr ); + + out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; + out->count = VB->Count; + out->size = MAX2(in->size, 3); + if (in->size == 4) + _mesa_copy_tab[0x8]( out, in ); +} + + + +static void texgen_normal_map_nv( GLcontext *ctx, + struct texgen_stage_data *store, + GLuint unit ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLvector4f *in = VB->AttribPtr[VERT_ATTRIB_TEX0 + unit]; + GLvector4f *out = &store->texcoord[unit]; + GLvector4f *normal = VB->AttribPtr[_TNL_ATTRIB_NORMAL]; + GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->start; + GLuint count = VB->Count; + GLuint i; + const GLfloat *norm = normal->start; + + for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { + texcoord[i][0] = norm[0]; + texcoord[i][1] = norm[1]; + texcoord[i][2] = norm[2]; + } + + + out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_3; + out->count = count; + out->size = MAX2(in->size, 3); + if (in->size == 4) + _mesa_copy_tab[0x8]( out, in ); +} + + +static void texgen_sphere_map( GLcontext *ctx, + struct texgen_stage_data *store, + GLuint unit ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLvector4f *in = VB->AttribPtr[VERT_ATTRIB_TEX0 + unit]; + GLvector4f *out = &store->texcoord[unit]; + GLfloat (*texcoord)[4] = (GLfloat (*)[4]) out->start; + GLuint count = VB->Count; + GLuint i; + GLfloat (*f)[3] = store->tmp_f; + GLfloat *m = store->tmp_m; + + (build_m_tab[VB->EyePtr->size])( store->tmp_f, + store->tmp_m, + VB->AttribPtr[_TNL_ATTRIB_NORMAL], + VB->EyePtr ); + + out->size = MAX2(in->size,2); + + for (i=0;i<count;i++) { + texcoord[i][0] = f[i][0] * m[i] + 0.5F; + texcoord[i][1] = f[i][1] * m[i] + 0.5F; + } + + out->count = count; + out->flags |= (in->flags & VEC_SIZE_FLAGS) | VEC_SIZE_2; + if (in->size > 2) + _mesa_copy_tab[all_bits[in->size] & ~0x3]( out, in ); +} + + + +static void texgen( GLcontext *ctx, + struct texgen_stage_data *store, + GLuint unit ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLvector4f *in = VB->AttribPtr[VERT_ATTRIB_TEX0 + unit]; + GLvector4f *out = &store->texcoord[unit]; + const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + const GLvector4f *obj = VB->ObjPtr; + const GLvector4f *eye = VB->EyePtr; + const GLvector4f *normal = VB->AttribPtr[_TNL_ATTRIB_NORMAL]; + const GLfloat *m = store->tmp_m; + const GLuint count = VB->Count; + GLfloat (*texcoord)[4] = (GLfloat (*)[4])out->data; + GLfloat (*f)[3] = store->tmp_f; + GLuint copy; + + if (texUnit->_GenFlags & TEXGEN_NEED_M) { + build_m_tab[eye->size]( store->tmp_f, store->tmp_m, normal, eye ); + } else if (texUnit->_GenFlags & TEXGEN_NEED_F) { + build_f_tab[eye->size]( (GLfloat *)store->tmp_f, 3, normal, eye ); + } + + + out->size = MAX2(in->size, store->TexgenSize[unit]); + out->flags |= (in->flags & VEC_SIZE_FLAGS) | texUnit->TexGenEnabled; + out->count = count; + + copy = (all_bits[in->size] & ~texUnit->TexGenEnabled); + if (copy) + _mesa_copy_tab[copy]( out, in ); + + if (texUnit->TexGenEnabled & S_BIT) { + GLuint i; + switch (texUnit->GenS.Mode) { + case GL_OBJECT_LINEAR: + _mesa_dotprod_tab[obj->size]( (GLfloat *)out->data, + sizeof(out->data[0]), obj, + texUnit->GenS.ObjectPlane ); + break; + case GL_EYE_LINEAR: + _mesa_dotprod_tab[eye->size]( (GLfloat *)out->data, + sizeof(out->data[0]), eye, + texUnit->GenS.EyePlane ); + break; + case GL_SPHERE_MAP: + for (i = 0; i < count; i++) + texcoord[i][0] = f[i][0] * m[i] + 0.5F; + break; + case GL_REFLECTION_MAP_NV: + for (i=0;i<count;i++) + texcoord[i][0] = f[i][0]; + break; + case GL_NORMAL_MAP_NV: { + const GLfloat *norm = normal->start; + for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { + texcoord[i][0] = norm[0]; + } + break; + } + default: + _mesa_problem(ctx, "Bad S texgen"); + } + } + + if (texUnit->TexGenEnabled & T_BIT) { + GLuint i; + switch (texUnit->GenT.Mode) { + case GL_OBJECT_LINEAR: + _mesa_dotprod_tab[obj->size]( &(out->data[0][1]), + sizeof(out->data[0]), obj, + texUnit->GenT.ObjectPlane ); + break; + case GL_EYE_LINEAR: + _mesa_dotprod_tab[eye->size]( &(out->data[0][1]), + sizeof(out->data[0]), eye, + texUnit->GenT.EyePlane ); + break; + case GL_SPHERE_MAP: + for (i = 0; i < count; i++) + texcoord[i][1] = f[i][1] * m[i] + 0.5F; + break; + case GL_REFLECTION_MAP_NV: + for (i=0;i<count;i++) + texcoord[i][1] = f[i][1]; + break; + case GL_NORMAL_MAP_NV: { + const GLfloat *norm = normal->start; + for (i=0;i<count;i++, STRIDE_F(norm, normal->stride)) { + texcoord[i][1] = norm[1]; + } + break; + } + default: + _mesa_problem(ctx, "Bad T texgen"); + } + } + + if (texUnit->TexGenEnabled & R_BIT) { + GLuint i; + switch (texUnit->GenR.Mode) { + case GL_OBJECT_LINEAR: + _mesa_dotprod_tab[obj->size]( &(out->data[0][2]), + sizeof(out->data[0]), obj, + texUnit->GenR.ObjectPlane ); + break; + case GL_EYE_LINEAR: + _mesa_dotprod_tab[eye->size]( &(out->data[0][2]), + sizeof(out->data[0]), eye, + texUnit->GenR.EyePlane ); + break; + case GL_REFLECTION_MAP_NV: + for (i=0;i<count;i++) + texcoord[i][2] = f[i][2]; + break; + case GL_NORMAL_MAP_NV: { + const GLfloat *norm = normal->start; + for (i=0;i<count;i++,STRIDE_F(norm, normal->stride)) { + texcoord[i][2] = norm[2]; + } + break; + } + default: + _mesa_problem(ctx, "Bad R texgen"); + } + } + + if (texUnit->TexGenEnabled & Q_BIT) { + switch (texUnit->GenQ.Mode) { + case GL_OBJECT_LINEAR: + _mesa_dotprod_tab[obj->size]( &(out->data[0][3]), + sizeof(out->data[0]), obj, + texUnit->GenQ.ObjectPlane ); + break; + case GL_EYE_LINEAR: + _mesa_dotprod_tab[eye->size]( &(out->data[0][3]), + sizeof(out->data[0]), eye, + texUnit->GenQ.EyePlane ); + break; + default: + _mesa_problem(ctx, "Bad Q texgen"); + } + } +} + + + + +static GLboolean run_texgen_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); + GLuint i; + + if (!ctx->Texture._TexGenEnabled || ctx->VertexProgram._Current) + return GL_TRUE; + + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; + + if (texUnit->TexGenEnabled) { + + store->TexgenFunc[i]( ctx, store, i ); + + VB->TexCoordPtr[i] = + VB->AttribPtr[VERT_ATTRIB_TEX0 + i] = &store->texcoord[i]; + } + } + + return GL_TRUE; +} + + +static void validate_texgen_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); + GLuint i; + + if (!ctx->Texture._TexGenEnabled || ctx->VertexProgram._Current) + return; + + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i]; + + if (texUnit->TexGenEnabled) { + GLuint sz; + + if (texUnit->TexGenEnabled & Q_BIT) + sz = 4; + else if (texUnit->TexGenEnabled & R_BIT) + sz = 3; + else if (texUnit->TexGenEnabled & T_BIT) + sz = 2; + else + sz = 1; + + store->TexgenSize[i] = sz; + store->TexgenFunc[i] = texgen; /* general solution */ + + /* look for special texgen cases */ + if (texUnit->TexGenEnabled == (S_BIT|T_BIT|R_BIT)) { + if (texUnit->_GenFlags == TEXGEN_REFLECTION_MAP_NV) { + store->TexgenFunc[i] = texgen_reflection_map_nv; + } + else if (texUnit->_GenFlags == TEXGEN_NORMAL_MAP_NV) { + store->TexgenFunc[i] = texgen_normal_map_nv; + } + } + else if (texUnit->TexGenEnabled == (S_BIT|T_BIT) && + texUnit->_GenFlags == TEXGEN_SPHERE_MAP) { + store->TexgenFunc[i] = texgen_sphere_map; + } + } + } +} + + + + + +/* Called the first time stage->run() is invoked. + */ +static GLboolean alloc_texgen_data( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct texgen_stage_data *store; + GLuint i; + + stage->privatePtr = CALLOC(sizeof(*store)); + store = TEXGEN_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) + _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); + + store->tmp_f = (GLfloat (*)[3]) MALLOC(VB->Size * sizeof(GLfloat) * 3); + store->tmp_m = (GLfloat *) MALLOC(VB->Size * sizeof(GLfloat)); + + return GL_TRUE; +} + + +static void free_texgen_data( struct tnl_pipeline_stage *stage ) + +{ + struct texgen_stage_data *store = TEXGEN_STAGE_DATA(stage); + GLuint i; + + if (store) { + for (i = 0 ; i < MAX_TEXTURE_COORD_UNITS ; i++) + if (store->texcoord[i].data) + _mesa_vector4f_free( &store->texcoord[i] ); + + + if (store->tmp_f) FREE( store->tmp_f ); + if (store->tmp_m) FREE( store->tmp_m ); + FREE( store ); + stage->privatePtr = NULL; + } +} + + + +const struct tnl_pipeline_stage _tnl_texgen_stage = +{ + "texgen", /* name */ + NULL, /* private data */ + alloc_texgen_data, /* destructor */ + free_texgen_data, /* destructor */ + validate_texgen_stage, /* check */ + run_texgen_stage /* run -- initially set to alloc data */ +}; diff --git a/mesalib/src/mesa/tnl/t_vb_texmat.c b/mesalib/src/mesa/tnl/t_vb_texmat.c new file mode 100644 index 000000000..0abe8cc35 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_texmat.c @@ -0,0 +1,130 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + +/* Is there any real benefit seperating texmat from texgen? It means + * we need two lots of intermediate storage. Any changes to + * _NEW_TEXTURE will invalidate both sets -- it's only on changes to + * *only* _NEW_TEXTURE_MATRIX that texgen survives but texmat doesn't. + * + * However, the seperation of this code from the complex texgen stuff + * is very appealing. + */ +struct texmat_stage_data { + GLvector4f texcoord[MAX_TEXTURE_COORD_UNITS]; +}; + +#define TEXMAT_STAGE_DATA(stage) ((struct texmat_stage_data *)stage->privatePtr) + + + +static GLboolean run_texmat_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLuint i; + + if (!ctx->Texture._TexMatEnabled || ctx->VertexProgram._Current) + return GL_TRUE; + + /* ENABLE_TEXMAT implies that the texture matrix is not the + * identity, so we don't have to check that here. + */ + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) { + if (ctx->Texture._TexMatEnabled & ENABLE_TEXMAT(i)) { + (void) TransformRaw( &store->texcoord[i], + ctx->TextureMatrixStack[i].Top, + VB->AttribPtr[_TNL_ATTRIB_TEX0 + i]); + + VB->TexCoordPtr[i] = + VB->AttribPtr[VERT_ATTRIB_TEX0+i] = &store->texcoord[i]; + } + } + + return GL_TRUE; +} + + +/* Called the first time stage->run() is invoked. + */ +static GLboolean alloc_texmat_data( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct texmat_stage_data *store; + GLuint i; + + stage->privatePtr = CALLOC(sizeof(*store)); + store = TEXMAT_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) + _mesa_vector4f_alloc( &store->texcoord[i], 0, VB->Size, 32 ); + + return GL_TRUE; +} + + +static void free_texmat_data( struct tnl_pipeline_stage *stage ) +{ + struct texmat_stage_data *store = TEXMAT_STAGE_DATA(stage); + GLuint i; + + if (store) { + for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) + if (store->texcoord[i].data) + _mesa_vector4f_free( &store->texcoord[i] ); + FREE( store ); + stage->privatePtr = NULL; + } +} + + + +const struct tnl_pipeline_stage _tnl_texture_transform_stage = +{ + "texture transform", /* name */ + NULL, /* private data */ + alloc_texmat_data, + free_texmat_data, /* destructor */ + NULL, + run_texmat_stage, +}; diff --git a/mesalib/src/mesa/tnl/t_vb_vertex.c b/mesalib/src/mesa/tnl/t_vb_vertex.c new file mode 100644 index 000000000..30aa7c408 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vb_vertex.c @@ -0,0 +1,264 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + + +struct vertex_stage_data { + GLvector4f eye; + GLvector4f clip; + GLvector4f proj; + GLubyte *clipmask; + GLubyte ormask; + GLubyte andmask; +}; + +#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->privatePtr) + + + + +/* This function implements cliptesting for user-defined clip planes. + * The clipping of primitives to these planes is implemented in + * t_render_clip.h. + */ +#define USER_CLIPTEST(NAME, SZ) \ +static void NAME( GLcontext *ctx, \ + GLvector4f *clip, \ + GLubyte *clipmask, \ + GLubyte *clipormask, \ + GLubyte *clipandmask ) \ +{ \ + GLuint p; \ + \ + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) \ + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { \ + GLuint nr, i; \ + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \ + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \ + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \ + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \ + GLfloat *coord = (GLfloat *)clip->data; \ + GLuint stride = clip->stride; \ + GLuint count = clip->count; \ + \ + for (nr = 0, i = 0 ; i < count ; i++) { \ + GLfloat dp = coord[0] * a + coord[1] * b; \ + if (SZ > 2) dp += coord[2] * c; \ + if (SZ > 3) dp += coord[3] * d; else dp += d; \ + \ + if (dp < 0) { \ + nr++; \ + clipmask[i] |= CLIP_USER_BIT; \ + } \ + \ + STRIDE_F(coord, stride); \ + } \ + \ + if (nr > 0) { \ + *clipormask |= CLIP_USER_BIT; \ + if (nr == count) { \ + *clipandmask |= CLIP_USER_BIT; \ + return; \ + } \ + } \ + } \ +} + + +USER_CLIPTEST(userclip2, 2) +USER_CLIPTEST(userclip3, 3) +USER_CLIPTEST(userclip4, 4) + +static void (*(usercliptab[5]))( GLcontext *, + GLvector4f *, GLubyte *, + GLubyte *, GLubyte * ) = +{ + NULL, + NULL, + userclip2, + userclip3, + userclip4 +}; + + + +static GLboolean run_vertex_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_stage_data *store = (struct vertex_stage_data *)stage->privatePtr; + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + if (ctx->VertexProgram._Current) + return GL_TRUE; + + if (ctx->_NeedEyeCoords) { + /* Separate modelview transformation: + * Use combined ModelProject to avoid some depth artifacts + */ + if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY) + VB->EyePtr = VB->ObjPtr; + else + VB->EyePtr = TransformRaw( &store->eye, + ctx->ModelviewMatrixStack.Top, + VB->ObjPtr); + } + + VB->ClipPtr = TransformRaw( &store->clip, + &ctx->_ModelProjectMatrix, + VB->ObjPtr ); + + /* Drivers expect this to be clean to element 4... + */ + switch (VB->ClipPtr->size) { + case 1: + /* impossible */ + case 2: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 ); + /* fall-through */ + case 3: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 ); + /* fall-through */ + case 4: + break; + } + + + /* Cliptest and perspective divide. Clip functions must clear + * the clipmask. + */ + store->ormask = 0; + store->andmask = CLIP_FRUSTUM_BITS; + + if (tnl->NeedNdcCoords) { + VB->NdcPtr = + _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr, + &store->proj, + store->clipmask, + &store->ormask, + &store->andmask ); + } + else { + VB->NdcPtr = NULL; + _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr, + NULL, + store->clipmask, + &store->ormask, + &store->andmask ); + } + + if (store->andmask) + return GL_FALSE; + + + /* Test userclip planes. This contributes to VB->ClipMask, so + * is essentially required to be in this stage. + */ + if (ctx->Transform.ClipPlanesEnabled) { + usercliptab[VB->ClipPtr->size]( ctx, + VB->ClipPtr, + store->clipmask, + &store->ormask, + &store->andmask ); + + if (store->andmask) + return GL_FALSE; + } + + VB->ClipAndMask = store->andmask; + VB->ClipOrMask = store->ormask; + VB->ClipMask = store->clipmask; + + return GL_TRUE; +} + + +static GLboolean init_vertex_stage( GLcontext *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct vertex_stage_data *store; + GLuint size = VB->Size; + + stage->privatePtr = CALLOC(sizeof(*store)); + store = VERTEX_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + _mesa_vector4f_alloc( &store->eye, 0, size, 32 ); + _mesa_vector4f_alloc( &store->clip, 0, size, 32 ); + _mesa_vector4f_alloc( &store->proj, 0, size, 32 ); + + store->clipmask = (GLubyte *) ALIGN_MALLOC(sizeof(GLubyte)*size, 32 ); + + if (!store->clipmask || + !store->eye.data || + !store->clip.data || + !store->proj.data) + return GL_FALSE; + + return GL_TRUE; +} + +static void dtr( struct tnl_pipeline_stage *stage ) +{ + struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage); + + if (store) { + _mesa_vector4f_free( &store->eye ); + _mesa_vector4f_free( &store->clip ); + _mesa_vector4f_free( &store->proj ); + ALIGN_FREE( store->clipmask ); + FREE(store); + stage->privatePtr = NULL; + stage->run = init_vertex_stage; + } +} + + +const struct tnl_pipeline_stage _tnl_vertex_transform_stage = +{ + "modelview/project/cliptest/divide", + NULL, /* private data */ + init_vertex_stage, + dtr, /* destructor */ + NULL, + run_vertex_stage /* run -- initially set to init */ +}; diff --git a/mesalib/src/mesa/tnl/t_vertex.c b/mesalib/src/mesa/tnl/t_vertex.c new file mode 100644 index 000000000..fe4209ae5 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vertex.c @@ -0,0 +1,564 @@ +/* + * Copyright 2003 Tungsten Graphics, inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/colormac.h" + +#include "t_context.h" +#include "t_vertex.h" + +#define DBG 0 + +/* Build and manage clipspace/ndc/window vertices. + */ + +static GLboolean match_fastpath( struct tnl_clipspace *vtx, + const struct tnl_clipspace_fastpath *fp) +{ + GLuint j; + + if (vtx->attr_count != fp->attr_count) + return GL_FALSE; + + for (j = 0; j < vtx->attr_count; j++) + if (vtx->attr[j].format != fp->attr[j].format || + vtx->attr[j].inputsize != fp->attr[j].size || + vtx->attr[j].vertoffset != fp->attr[j].offset) + return GL_FALSE; + + if (fp->match_strides) { + if (vtx->vertex_size != fp->vertex_size) + return GL_FALSE; + + for (j = 0; j < vtx->attr_count; j++) + if (vtx->attr[j].inputstride != fp->attr[j].stride) + return GL_FALSE; + } + + return GL_TRUE; +} + +static GLboolean search_fastpath_emit( struct tnl_clipspace *vtx ) +{ + struct tnl_clipspace_fastpath *fp = vtx->fastpath; + + for ( ; fp ; fp = fp->next) { + if (match_fastpath(vtx, fp)) { + vtx->emit = fp->func; + return GL_TRUE; + } + } + + return GL_FALSE; +} + +void _tnl_register_fastpath( struct tnl_clipspace *vtx, + GLboolean match_strides ) +{ + struct tnl_clipspace_fastpath *fastpath = CALLOC_STRUCT(tnl_clipspace_fastpath); + GLuint i; + + fastpath->vertex_size = vtx->vertex_size; + fastpath->attr_count = vtx->attr_count; + fastpath->match_strides = match_strides; + fastpath->func = vtx->emit; + fastpath->attr = (struct tnl_attr_type *) + _mesa_malloc(vtx->attr_count * sizeof(fastpath->attr[0])); + + for (i = 0; i < vtx->attr_count; i++) { + fastpath->attr[i].format = vtx->attr[i].format; + fastpath->attr[i].stride = vtx->attr[i].inputstride; + fastpath->attr[i].size = vtx->attr[i].inputsize; + fastpath->attr[i].offset = vtx->attr[i].vertoffset; + } + + fastpath->next = vtx->fastpath; + vtx->fastpath = fastpath; +} + + + +/*********************************************************************** + * Build codegen functions or return generic ones: + */ +static void choose_emit_func( GLcontext *ctx, GLuint count, GLubyte *dest) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + GLvector4f *vptr = VB->AttribPtr[a[j].attrib]; + a[j].inputstride = vptr->stride; + a[j].inputsize = vptr->size; + a[j].emit = a[j].insert[vptr->size - 1]; /* not always used */ + } + + vtx->emit = NULL; + + /* Does this match an existing (hardwired, codegen or known-bad) + * fastpath? + */ + if (search_fastpath_emit(vtx)) { + /* Use this result. If it is null, then it is already known + * that the current state will fail for codegen and there is no + * point trying again. + */ + } + else if (vtx->codegen_emit) { + vtx->codegen_emit(ctx); + } + + if (!vtx->emit) { + _tnl_generate_hardwired_emit(ctx); + } + + /* Otherwise use the generic version: + */ + if (!vtx->emit) + vtx->emit = _tnl_generic_emit; + + vtx->emit( ctx, count, dest ); +} + + + +static void choose_interp_func( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + if (vtx->need_extras && + (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) { + vtx->interp = _tnl_generic_interp_extras; + } else { + vtx->interp = _tnl_generic_interp; + } + + vtx->interp( ctx, t, edst, eout, ein, force_boundary ); +} + + +static void choose_copy_pv_func( GLcontext *ctx, GLuint edst, GLuint esrc ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + if (vtx->need_extras && + (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) { + vtx->copy_pv = _tnl_generic_copy_pv_extras; + } else { + vtx->copy_pv = _tnl_generic_copy_pv; + } + + vtx->copy_pv( ctx, edst, esrc ); +} + + +/*********************************************************************** + * Public entrypoints, mostly dispatch to the above: + */ + + +/* Interpolate between two vertices to produce a third: + */ +void _tnl_interp( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->interp( ctx, t, edst, eout, ein, force_boundary ); +} + +/* Copy colors from one vertex to another: + */ +void _tnl_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->copy_pv( ctx, edst, esrc ); +} + + +/* Extract a named attribute from a hardware vertex. Will have to + * reverse any viewport transformation, swizzling or other conversions + * which may have been applied: + */ +void _tnl_get_attr( GLcontext *ctx, const void *vin, + GLenum attr, GLfloat *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + if (a[j].attrib == attr) { + a[j].extract( &a[j], dest, (GLubyte *)vin + a[j].vertoffset ); + return; + } + } + + /* Else return the value from ctx->Current. + */ + if (attr == _TNL_ATTRIB_POINTSIZE) { + /* If the hardware vertex doesn't have point size then use size from + * GLcontext. XXX this will be wrong if drawing attenuated points! + */ + dest[0] = ctx->Point.Size; + } + else { + _mesa_memcpy( dest, ctx->Current.Attrib[attr], 4*sizeof(GLfloat)); + } +} + + +/* Complementary operation to the above. + */ +void _tnl_set_attr( GLcontext *ctx, void *vout, + GLenum attr, const GLfloat *src ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + if (a[j].attrib == attr) { + a[j].insert[4-1]( &a[j], (GLubyte *)vout + a[j].vertoffset, src ); + return; + } + } +} + + +void *_tnl_get_vertex( GLcontext *ctx, GLuint nr ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + return vtx->vertex_buf + nr * vtx->vertex_size; +} + +void _tnl_invalidate_vertex_state( GLcontext *ctx, GLuint new_state ) +{ + if (new_state & (_DD_NEW_TRI_LIGHT_TWOSIDE|_DD_NEW_TRI_UNFILLED) ) { + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->new_inputs = ~0; + vtx->interp = choose_interp_func; + vtx->copy_pv = choose_copy_pv_func; + } +} + +static void invalidate_funcs( struct tnl_clipspace *vtx ) +{ + vtx->emit = choose_emit_func; + vtx->interp = choose_interp_func; + vtx->copy_pv = choose_copy_pv_func; + vtx->new_inputs = ~0; +} + +GLuint _tnl_install_attrs( GLcontext *ctx, const struct tnl_attr_map *map, + GLuint nr, const GLfloat *vp, + GLuint unpacked_size ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLuint offset = 0; + GLuint i, j; + + assert(nr < _TNL_ATTRIB_MAX); + assert(nr == 0 || map[0].attrib == VERT_ATTRIB_POS); + + vtx->new_inputs = ~0; + vtx->need_viewport = GL_FALSE; + + if (vp) { + vtx->need_viewport = GL_TRUE; + } + + for (j = 0, i = 0; i < nr; i++) { + const GLuint format = map[i].format; + if (format == EMIT_PAD) { + if (DBG) + _mesa_printf("%d: pad %d, offset %d\n", i, + map[i].offset, offset); + + offset += map[i].offset; + + } + else { + GLuint tmpoffset; + + if (unpacked_size) + tmpoffset = map[i].offset; + else + tmpoffset = offset; + + if (vtx->attr_count != j || + vtx->attr[j].attrib != map[i].attrib || + vtx->attr[j].format != format || + vtx->attr[j].vertoffset != tmpoffset) { + invalidate_funcs(vtx); + + vtx->attr[j].attrib = map[i].attrib; + vtx->attr[j].format = format; + vtx->attr[j].vp = vp; + vtx->attr[j].insert = _tnl_format_info[format].insert; + vtx->attr[j].extract = _tnl_format_info[format].extract; + vtx->attr[j].vertattrsize = _tnl_format_info[format].attrsize; + vtx->attr[j].vertoffset = tmpoffset; + } + + + if (DBG) + _mesa_printf("%d: %s, vp %p, offset %d\n", i, + _tnl_format_info[format].name, (void *)vp, + vtx->attr[j].vertoffset); + + offset += _tnl_format_info[format].attrsize; + j++; + } + } + + vtx->attr_count = j; + + if (unpacked_size) + vtx->vertex_size = unpacked_size; + else + vtx->vertex_size = offset; + + assert(vtx->vertex_size <= vtx->max_vertex_size); + return vtx->vertex_size; +} + + + +void _tnl_invalidate_vertices( GLcontext *ctx, GLuint newinputs ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + vtx->new_inputs |= newinputs; +} + + +/* This event has broader use beyond this file - will move elsewhere + * and probably invoke a driver callback. + */ +void _tnl_notify_pipeline_output_change( GLcontext *ctx ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + invalidate_funcs(vtx); +} + + +static void adjust_input_ptrs( GLcontext *ctx, GLint diff) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint count = vtx->attr_count; + int j; + + diff -= 1; + for (j=0; j<count; ++j) { + register GLvector4f *vptr = VB->AttribPtr[a->attrib]; + (a++)->inputptr += diff*vptr->stride; + } +} + +static void update_input_ptrs( GLcontext *ctx, GLuint start ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint count = vtx->attr_count; + GLuint j; + + for (j = 0; j < count; j++) { + GLvector4f *vptr = VB->AttribPtr[a[j].attrib]; + + if (vtx->emit != choose_emit_func) { + assert(a[j].inputstride == vptr->stride); + assert(a[j].inputsize == vptr->size); + } + + a[j].inputptr = ((GLubyte *)vptr->data) + start * vptr->stride; + } + + if (a->vp) { + vtx->vp_scale[0] = a->vp[MAT_SX]; + vtx->vp_scale[1] = a->vp[MAT_SY]; + vtx->vp_scale[2] = a->vp[MAT_SZ]; + vtx->vp_scale[3] = 1.0; + vtx->vp_xlate[0] = a->vp[MAT_TX]; + vtx->vp_xlate[1] = a->vp[MAT_TY]; + vtx->vp_xlate[2] = a->vp[MAT_TZ]; + vtx->vp_xlate[3] = 0.0; + } +} + + +void _tnl_build_vertices( GLcontext *ctx, + GLuint start, + GLuint end, + GLuint newinputs ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + update_input_ptrs( ctx, start ); + vtx->emit( ctx, end - start, + (GLubyte *)(vtx->vertex_buf + + start * vtx->vertex_size)); +} + +/* Emit VB vertices start..end to dest. Note that VB vertex at + * postion start will be emitted to dest at position zero. + */ +void *_tnl_emit_vertices_to_buffer( GLcontext *ctx, + GLuint start, + GLuint end, + void *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + update_input_ptrs(ctx, start); + /* Note: dest should not be adjusted for non-zero 'start' values: + */ + vtx->emit( ctx, end - start, (GLubyte*) dest ); + return (void *)((GLubyte *)dest + vtx->vertex_size * (end - start)); +} + +/* Emit indexed VB vertices start..end to dest. Note that VB vertex at + * postion start will be emitted to dest at position zero. + */ + +void *_tnl_emit_indexed_vertices_to_buffer( GLcontext *ctx, + const GLuint *elts, + GLuint start, + GLuint end, + void *dest ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLuint oldIndex; + GLubyte *cdest = dest; + + update_input_ptrs(ctx, oldIndex = elts[start++]); + vtx->emit( ctx, 1, cdest ); + cdest += vtx->vertex_size; + + for (; start < end; ++start) { + adjust_input_ptrs(ctx, elts[start] - oldIndex); + oldIndex = elts[start]; + vtx->emit( ctx, 1, cdest); + cdest += vtx->vertex_size; + } + + return (void *) cdest; +} + + +void _tnl_init_vertices( GLcontext *ctx, + GLuint vb_size, + GLuint max_vertex_size ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + + _tnl_install_attrs( ctx, NULL, 0, NULL, 0 ); + + vtx->need_extras = GL_TRUE; + if (max_vertex_size > vtx->max_vertex_size) { + _tnl_free_vertices( ctx ); + vtx->max_vertex_size = max_vertex_size; + vtx->vertex_buf = (GLubyte *)ALIGN_CALLOC(vb_size * max_vertex_size, 32 ); + invalidate_funcs(vtx); + } + + switch(CHAN_TYPE) { + case GL_UNSIGNED_BYTE: + vtx->chan_scale[0] = 255.0; + vtx->chan_scale[1] = 255.0; + vtx->chan_scale[2] = 255.0; + vtx->chan_scale[3] = 255.0; + break; + case GL_UNSIGNED_SHORT: + vtx->chan_scale[0] = 65535.0; + vtx->chan_scale[1] = 65535.0; + vtx->chan_scale[2] = 65535.0; + vtx->chan_scale[3] = 65535.0; + break; + default: + vtx->chan_scale[0] = 1.0; + vtx->chan_scale[1] = 1.0; + vtx->chan_scale[2] = 1.0; + vtx->chan_scale[3] = 1.0; + break; + } + + vtx->identity[0] = 0.0; + vtx->identity[1] = 0.0; + vtx->identity[2] = 0.0; + vtx->identity[3] = 1.0; + + vtx->codegen_emit = NULL; + +#ifdef USE_SSE_ASM + if (!_mesa_getenv("MESA_NO_CODEGEN")) + vtx->codegen_emit = _tnl_generate_sse_emit; +#endif +} + + +void _tnl_free_vertices( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + if (tnl) { + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_fastpath *fp, *tmp; + + if (vtx->vertex_buf) { + ALIGN_FREE(vtx->vertex_buf); + vtx->vertex_buf = NULL; + } + + for (fp = vtx->fastpath ; fp ; fp = tmp) { + tmp = fp->next; + FREE(fp->attr); + + /* KW: At the moment, fp->func is constrained to be allocated by + * _mesa_exec_alloc(), as the hardwired fastpaths in + * t_vertex_generic.c are handled specially. It would be nice + * to unify them, but this probably won't change until this + * module gets another overhaul. + */ + _mesa_exec_free((void *) fp->func); + FREE(fp); + } + + vtx->fastpath = NULL; + } +} diff --git a/mesalib/src/mesa/tnl/t_vertex.h b/mesalib/src/mesa/tnl/t_vertex.h new file mode 100644 index 000000000..2dfd7b57f --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vertex.h @@ -0,0 +1,181 @@ +/* + * Copyright 2003 Tungsten Graphics, inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#ifndef _TNL_VERTEX_H +#define _TNL_VERTEX_H + +#include "main/mtypes.h" +#include "t_context.h" + +/* New mechanism to specify hardware vertices so that tnl can build + * and manipulate them directly. + */ + + +/* It will probably be necessary to allow drivers to specify new + * emit-styles to cover all the wierd and wacky things out there. + */ +enum tnl_attr_format { + EMIT_1F, + EMIT_2F, + EMIT_3F, + EMIT_4F, + EMIT_2F_VIEWPORT, /* do viewport transform and emit */ + EMIT_3F_VIEWPORT, /* do viewport transform and emit */ + EMIT_4F_VIEWPORT, /* do viewport transform and emit */ + EMIT_3F_XYW, /* for projective texture */ + EMIT_1UB_1F, /* for fog coordinate */ + EMIT_3UB_3F_RGB, /* for specular color */ + EMIT_3UB_3F_BGR, /* for specular color */ + EMIT_4UB_4F_RGBA, /* for color */ + EMIT_4UB_4F_BGRA, /* for color */ + EMIT_4UB_4F_ARGB, /* for color */ + EMIT_4UB_4F_ABGR, /* for color */ + EMIT_4CHAN_4F_RGBA, /* for swrast color */ + EMIT_PAD, /* leave a hole of 'offset' bytes */ + EMIT_MAX +}; + +struct tnl_attr_map { + GLuint attrib; /* _TNL_ATTRIB_ enum */ + enum tnl_attr_format format; + GLuint offset; +}; + +struct tnl_format_info { + const char *name; + tnl_extract_func extract; + tnl_insert_func insert[4]; + const GLuint attrsize; +}; + +extern const struct tnl_format_info _tnl_format_info[EMIT_MAX]; + + +/* Interpolate between two vertices to produce a third: + */ +extern void _tnl_interp( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ); + +/* Copy colors from one vertex to another: + */ +extern void _tnl_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ); + + +/* Extract a named attribute from a hardware vertex. Will have to + * reverse any viewport transformation, swizzling or other conversions + * which may have been applied: + */ +extern void _tnl_get_attr( GLcontext *ctx, const void *vertex, GLenum attrib, + GLfloat *dest ); + +/* Complementary to the above. + */ +extern void _tnl_set_attr( GLcontext *ctx, void *vout, GLenum attrib, + const GLfloat *src ); + + +extern void *_tnl_get_vertex( GLcontext *ctx, GLuint nr ); + +extern GLuint _tnl_install_attrs( GLcontext *ctx, + const struct tnl_attr_map *map, + GLuint nr, const GLfloat *vp, + GLuint unpacked_size ); + +extern void _tnl_free_vertices( GLcontext *ctx ); + +extern void _tnl_init_vertices( GLcontext *ctx, + GLuint vb_size, + GLuint max_vertex_size ); + +extern void *_tnl_emit_vertices_to_buffer( GLcontext *ctx, + GLuint start, + GLuint end, + void *dest ); + +/* This function isn't optimal. Check out + * gallium/auxilary/translate for a more comprehensive implementation of + * the same functionality. + */ + +extern void *_tnl_emit_indexed_vertices_to_buffer( GLcontext *ctx, + const GLuint *elts, + GLuint start, + GLuint end, + void *dest ); + + +extern void _tnl_build_vertices( GLcontext *ctx, + GLuint start, + GLuint end, + GLuint newinputs ); + +extern void _tnl_invalidate_vertices( GLcontext *ctx, GLuint newinputs ); + +extern void _tnl_invalidate_vertex_state( GLcontext *ctx, GLuint new_state ); + +extern void _tnl_notify_pipeline_output_change( GLcontext *ctx ); + + +#define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace) + +/* Internal function: + */ +void _tnl_register_fastpath( struct tnl_clipspace *vtx, + GLboolean match_strides ); + + +/* t_vertex_generic.c -- Internal functions for t_vertex.c + */ +void _tnl_generic_copy_pv_extras( GLcontext *ctx, + GLuint dst, GLuint src ); + +void _tnl_generic_interp_extras( GLcontext *ctx, + GLfloat t, + GLuint dst, GLuint out, GLuint in, + GLboolean force_boundary ); + +void _tnl_generic_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ); + +void _tnl_generic_interp( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ); + +void _tnl_generic_emit( GLcontext *ctx, + GLuint count, + GLubyte *v ); + +void _tnl_generate_hardwired_emit( GLcontext *ctx ); + +/* t_vertex_sse.c -- Internal functions for t_vertex.c + */ +void _tnl_generate_sse_emit( GLcontext *ctx ); + +#endif diff --git a/mesalib/src/mesa/tnl/t_vertex_generic.c b/mesalib/src/mesa/tnl/t_vertex_generic.c new file mode 100644 index 000000000..9812f8c80 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vertex_generic.c @@ -0,0 +1,1155 @@ + +/* + * Copyright 2003 Tungsten Graphics, inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/colormac.h" +#include "main/simple_list.h" +#include "t_context.h" +#include "t_vertex.h" + + +#if 0 +#define DEBUG_INSERT printf("%s\n", __FUNCTION__) +#else +#define DEBUG_INSERT +#endif + + +/* + * These functions take the NDC coordinates pointed to by 'in', apply the + * NDC->Viewport mapping and store the results at 'v'. + */ + +static INLINE void insert_4f_viewport_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; + out[2] = vp[10] * in[2] + vp[14]; + out[3] = in[3]; +} + +static INLINE void insert_4f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; + out[2] = vp[10] * in[2] + vp[14]; + out[3] = 1; +} + +static INLINE void insert_4f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; + out[2] = vp[14]; + out[3] = 1; +} + +static INLINE void insert_4f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[13]; + out[2] = vp[14]; + out[3] = 1; +} + +static INLINE void insert_3f_viewport_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; + out[2] = vp[10] * in[2] + vp[14]; +} + +static INLINE void insert_3f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; + out[2] = vp[14]; +} + +static INLINE void insert_3f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[13]; + out[2] = vp[14]; +} + +static INLINE void insert_2f_viewport_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[5] * in[1] + vp[13]; +} + +static INLINE void insert_2f_viewport_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = vp[0] * in[0] + vp[12]; + out[1] = vp[13]; +} + + +/* + * These functions do the same as above, except for the viewport mapping. + */ + +static INLINE void insert_4f_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + out[3] = in[3]; +} + +static INLINE void insert_4f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + out[3] = 1; +} + +static INLINE void insert_4f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = 0; + out[3] = 1; +} + +static INLINE void insert_4f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = 0; + out[2] = 0; + out[3] = 1; +} + +static INLINE void insert_3f_xyw_4( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[3]; +} + +static INLINE void insert_3f_xyw_err( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + (void) a; (void) v; (void) in; + DEBUG_INSERT; + _mesa_exit(1); +} + +static INLINE void insert_3f_3( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; +} + +static INLINE void insert_3f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; + out[2] = 0; +} + +static INLINE void insert_3f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = 0; + out[2] = 0; +} + + +static INLINE void insert_2f_2( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = in[1]; +} + +static INLINE void insert_2f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; + out[1] = 0; +} + +static INLINE void insert_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + GLfloat *out = (GLfloat *)(v); + (void) a; + DEBUG_INSERT; + out[0] = in[0]; +} + +static INLINE void insert_null( const struct tnl_clipspace_attr *a, GLubyte *v, const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; (void) v; (void) in; +} + +static INLINE void insert_4chan_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLchan *c = (GLchan *)v; + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); + UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); + UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]); + UNCLAMPED_FLOAT_TO_CHAN(c[3], in[3]); +} + +static INLINE void insert_4chan_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLchan *c = (GLchan *)v; + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); + UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); + UNCLAMPED_FLOAT_TO_CHAN(c[2], in[2]); + c[3] = CHAN_MAX; +} + +static INLINE void insert_4chan_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLchan *c = (GLchan *)v; + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); + UNCLAMPED_FLOAT_TO_CHAN(c[1], in[1]); + c[2] = 0; + c[3] = CHAN_MAX; +} + +static INLINE void insert_4chan_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + GLchan *c = (GLchan *)v; + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_CHAN(c[0], in[0]); + c[1] = 0; + c[2] = 0; + c[3] = CHAN_MAX; +} + +static INLINE void insert_4ub_4f_rgba_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]); +} + +static INLINE void insert_4ub_4f_rgba_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_rgba_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + v[2] = 0; + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_rgba_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + v[1] = 0; + v[2] = 0; + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_bgra_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[3]); +} + +static INLINE void insert_4ub_4f_bgra_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_bgra_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + v[0] = 0; + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_bgra_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + v[1] = 0; + v[0] = 0; + v[3] = 0xff; +} + +static INLINE void insert_4ub_4f_argb_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]); + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]); +} + +static INLINE void insert_4ub_4f_argb_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[2]); + v[0] = 0xff; +} + +static INLINE void insert_4ub_4f_argb_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + v[3] = 0x00; + v[0] = 0xff; +} + +static INLINE void insert_4ub_4f_argb_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[0]); + v[2] = 0x00; + v[3] = 0x00; + v[0] = 0xff; +} + +static INLINE void insert_4ub_4f_abgr_4( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]); + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[3]); +} + +static INLINE void insert_4ub_4f_abgr_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[2]); + v[0] = 0xff; +} + +static INLINE void insert_4ub_4f_abgr_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[1]); + v[1] = 0x00; + v[0] = 0xff; +} + +static INLINE void insert_4ub_4f_abgr_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[3], in[0]); + v[2] = 0x00; + v[1] = 0x00; + v[0] = 0xff; +} + +static INLINE void insert_3ub_3f_rgb_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[2]); +} + +static INLINE void insert_3ub_3f_rgb_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + v[2] = 0; +} + +static INLINE void insert_3ub_3f_rgb_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); + v[1] = 0; + v[2] = 0; +} + +static INLINE void insert_3ub_3f_bgr_3( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[2]); +} + +static INLINE void insert_3ub_3f_bgr_2( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + UNCLAMPED_FLOAT_TO_UBYTE(v[1], in[1]); + v[0] = 0; +} + +static INLINE void insert_3ub_3f_bgr_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[2], in[0]); + v[1] = 0; + v[0] = 0; +} + + +static INLINE void insert_1ub_1f_1( const struct tnl_clipspace_attr *a, GLubyte *v, + const GLfloat *in ) +{ + DEBUG_INSERT; + (void) a; + UNCLAMPED_FLOAT_TO_UBYTE(v[0], in[0]); +} + + +/*********************************************************************** + * Functions to perform the reverse operations to the above, for + * swrast translation and clip-interpolation. + * + * Currently always extracts a full 4 floats. + */ + +static void extract_4f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + const GLfloat * const vp = a->vp; + + /* Although included for completeness, the position coordinate is + * usually handled differently during clipping. + */ + DEBUG_INSERT; + out[0] = (in[0] - vp[12]) / vp[0]; + out[1] = (in[1] - vp[13]) / vp[5]; + out[2] = (in[2] - vp[14]) / vp[10]; + out[3] = in[3]; +} + +static void extract_3f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = (in[0] - vp[12]) / vp[0]; + out[1] = (in[1] - vp[13]) / vp[5]; + out[2] = (in[2] - vp[14]) / vp[10]; + out[3] = 1; +} + + +static void extract_2f_viewport( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + const GLfloat * const vp = a->vp; + DEBUG_INSERT; + out[0] = (in[0] - vp[12]) / vp[0]; + out[1] = (in[1] - vp[13]) / vp[5]; + out[2] = 0; + out[3] = 1; +} + + +static void extract_4f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + (void) a; + + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + out[3] = in[3]; +} + +static void extract_3f_xyw( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + (void) a; + + out[0] = in[0]; + out[1] = in[1]; + out[2] = 0; + out[3] = in[2]; +} + + +static void extract_3f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + (void) a; + + out[0] = in[0]; + out[1] = in[1]; + out[2] = in[2]; + out[3] = 1; +} + + +static void extract_2f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + (void) a; + + out[0] = in[0]; + out[1] = in[1]; + out[2] = 0; + out[3] = 1; +} + +static void extract_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + const GLfloat *in = (const GLfloat *)v; + (void) a; + + out[0] = in[0]; + out[1] = 0; + out[2] = 0; + out[3] = 1; +} + +static void extract_4chan_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + GLchan *c = (GLchan *)v; + (void) a; + + out[0] = CHAN_TO_FLOAT(c[0]); + out[1] = CHAN_TO_FLOAT(c[1]); + out[2] = CHAN_TO_FLOAT(c[2]); + out[3] = CHAN_TO_FLOAT(c[3]); +} + +static void extract_4ub_4f_rgba( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[0] = UBYTE_TO_FLOAT(v[0]); + out[1] = UBYTE_TO_FLOAT(v[1]); + out[2] = UBYTE_TO_FLOAT(v[2]); + out[3] = UBYTE_TO_FLOAT(v[3]); +} + +static void extract_4ub_4f_bgra( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[2] = UBYTE_TO_FLOAT(v[0]); + out[1] = UBYTE_TO_FLOAT(v[1]); + out[0] = UBYTE_TO_FLOAT(v[2]); + out[3] = UBYTE_TO_FLOAT(v[3]); +} + +static void extract_4ub_4f_argb( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[3] = UBYTE_TO_FLOAT(v[0]); + out[0] = UBYTE_TO_FLOAT(v[1]); + out[1] = UBYTE_TO_FLOAT(v[2]); + out[2] = UBYTE_TO_FLOAT(v[3]); +} + +static void extract_4ub_4f_abgr( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[3] = UBYTE_TO_FLOAT(v[0]); + out[2] = UBYTE_TO_FLOAT(v[1]); + out[1] = UBYTE_TO_FLOAT(v[2]); + out[0] = UBYTE_TO_FLOAT(v[3]); +} + +static void extract_3ub_3f_rgb( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[0] = UBYTE_TO_FLOAT(v[0]); + out[1] = UBYTE_TO_FLOAT(v[1]); + out[2] = UBYTE_TO_FLOAT(v[2]); + out[3] = 1; +} + +static void extract_3ub_3f_bgr( const struct tnl_clipspace_attr *a, GLfloat *out, + const GLubyte *v ) +{ + (void) a; + out[2] = UBYTE_TO_FLOAT(v[0]); + out[1] = UBYTE_TO_FLOAT(v[1]); + out[0] = UBYTE_TO_FLOAT(v[2]); + out[3] = 1; +} + +static void extract_1ub_1f( const struct tnl_clipspace_attr *a, GLfloat *out, const GLubyte *v ) +{ + (void) a; + out[0] = UBYTE_TO_FLOAT(v[0]); + out[1] = 0; + out[2] = 0; + out[3] = 1; +} + + +const struct tnl_format_info _tnl_format_info[EMIT_MAX] = +{ + { "1f", + extract_1f, + { insert_1f_1, insert_1f_1, insert_1f_1, insert_1f_1 }, + sizeof(GLfloat) }, + + { "2f", + extract_2f, + { insert_2f_1, insert_2f_2, insert_2f_2, insert_2f_2 }, + 2 * sizeof(GLfloat) }, + + { "3f", + extract_3f, + { insert_3f_1, insert_3f_2, insert_3f_3, insert_3f_3 }, + 3 * sizeof(GLfloat) }, + + { "4f", + extract_4f, + { insert_4f_1, insert_4f_2, insert_4f_3, insert_4f_4 }, + 4 * sizeof(GLfloat) }, + + { "2f_viewport", + extract_2f_viewport, + { insert_2f_viewport_1, insert_2f_viewport_2, insert_2f_viewport_2, + insert_2f_viewport_2 }, + 2 * sizeof(GLfloat) }, + + { "3f_viewport", + extract_3f_viewport, + { insert_3f_viewport_1, insert_3f_viewport_2, insert_3f_viewport_3, + insert_3f_viewport_3 }, + 3 * sizeof(GLfloat) }, + + { "4f_viewport", + extract_4f_viewport, + { insert_4f_viewport_1, insert_4f_viewport_2, insert_4f_viewport_3, + insert_4f_viewport_4 }, + 4 * sizeof(GLfloat) }, + + { "3f_xyw", + extract_3f_xyw, + { insert_3f_xyw_err, insert_3f_xyw_err, insert_3f_xyw_err, + insert_3f_xyw_4 }, + 3 * sizeof(GLfloat) }, + + { "1ub_1f", + extract_1ub_1f, + { insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1, insert_1ub_1f_1 }, + sizeof(GLubyte) }, + + { "3ub_3f_rgb", + extract_3ub_3f_rgb, + { insert_3ub_3f_rgb_1, insert_3ub_3f_rgb_2, insert_3ub_3f_rgb_3, + insert_3ub_3f_rgb_3 }, + 3 * sizeof(GLubyte) }, + + { "3ub_3f_bgr", + extract_3ub_3f_bgr, + { insert_3ub_3f_bgr_1, insert_3ub_3f_bgr_2, insert_3ub_3f_bgr_3, + insert_3ub_3f_bgr_3 }, + 3 * sizeof(GLubyte) }, + + { "4ub_4f_rgba", + extract_4ub_4f_rgba, + { insert_4ub_4f_rgba_1, insert_4ub_4f_rgba_2, insert_4ub_4f_rgba_3, + insert_4ub_4f_rgba_4 }, + 4 * sizeof(GLubyte) }, + + { "4ub_4f_bgra", + extract_4ub_4f_bgra, + { insert_4ub_4f_bgra_1, insert_4ub_4f_bgra_2, insert_4ub_4f_bgra_3, + insert_4ub_4f_bgra_4 }, + 4 * sizeof(GLubyte) }, + + { "4ub_4f_argb", + extract_4ub_4f_argb, + { insert_4ub_4f_argb_1, insert_4ub_4f_argb_2, insert_4ub_4f_argb_3, + insert_4ub_4f_argb_4 }, + 4 * sizeof(GLubyte) }, + + { "4ub_4f_abgr", + extract_4ub_4f_abgr, + { insert_4ub_4f_abgr_1, insert_4ub_4f_abgr_2, insert_4ub_4f_abgr_3, + insert_4ub_4f_abgr_4 }, + 4 * sizeof(GLubyte) }, + + { "4chan_4f_rgba", + extract_4chan_4f_rgba, + { insert_4chan_4f_rgba_1, insert_4chan_4f_rgba_2, insert_4chan_4f_rgba_3, + insert_4chan_4f_rgba_4 }, + 4 * sizeof(GLchan) }, + + { "pad", + NULL, + { NULL, NULL, NULL, NULL }, + 0 } + +}; + + + + +/*********************************************************************** + * Hardwired fastpaths for emitting whole vertices or groups of + * vertices + */ +#define EMIT5(NR, F0, F1, F2, F3, F4, NAME) \ +static void NAME( GLcontext *ctx, \ + GLuint count, \ + GLubyte *v ) \ +{ \ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); \ + struct tnl_clipspace_attr *a = vtx->attr; \ + GLuint i; \ + \ + for (i = 0 ; i < count ; i++, v += vtx->vertex_size) { \ + if (NR > 0) { \ + F0( &a[0], v + a[0].vertoffset, (GLfloat *)a[0].inputptr ); \ + a[0].inputptr += a[0].inputstride; \ + } \ + \ + if (NR > 1) { \ + F1( &a[1], v + a[1].vertoffset, (GLfloat *)a[1].inputptr ); \ + a[1].inputptr += a[1].inputstride; \ + } \ + \ + if (NR > 2) { \ + F2( &a[2], v + a[2].vertoffset, (GLfloat *)a[2].inputptr ); \ + a[2].inputptr += a[2].inputstride; \ + } \ + \ + if (NR > 3) { \ + F3( &a[3], v + a[3].vertoffset, (GLfloat *)a[3].inputptr ); \ + a[3].inputptr += a[3].inputstride; \ + } \ + \ + if (NR > 4) { \ + F4( &a[4], v + a[4].vertoffset, (GLfloat *)a[4].inputptr ); \ + a[4].inputptr += a[4].inputstride; \ + } \ + } \ +} + + +#define EMIT2(F0, F1, NAME) EMIT5(2, F0, F1, insert_null, \ + insert_null, insert_null, NAME) + +#define EMIT3(F0, F1, F2, NAME) EMIT5(3, F0, F1, F2, insert_null, \ + insert_null, NAME) + +#define EMIT4(F0, F1, F2, F3, NAME) EMIT5(4, F0, F1, F2, F3, \ + insert_null, NAME) + + +EMIT2(insert_3f_viewport_3, insert_4ub_4f_rgba_4, emit_viewport3_rgba4) +EMIT2(insert_3f_viewport_3, insert_4ub_4f_bgra_4, emit_viewport3_bgra4) +EMIT2(insert_3f_3, insert_4ub_4f_rgba_4, emit_xyz3_rgba4) + +EMIT3(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_viewport4_rgba4_st2) +EMIT3(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, emit_viewport4_bgra4_st2) +EMIT3(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, emit_xyzw4_rgba4_st2) + +EMIT4(insert_4f_viewport_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_viewport4_rgba4_st2_st2) +EMIT4(insert_4f_viewport_4, insert_4ub_4f_bgra_4, insert_2f_2, insert_2f_2, emit_viewport4_bgra4_st2_st2) +EMIT4(insert_4f_4, insert_4ub_4f_rgba_4, insert_2f_2, insert_2f_2, emit_xyzw4_rgba4_st2_st2) + + +/* Use the codegen paths to select one of a number of hardwired + * fastpaths. + */ +void _tnl_generate_hardwired_emit( GLcontext *ctx ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + tnl_emit_func func = NULL; + + /* Does it fit a hardwired fastpath? Help! this is growing out of + * control! + */ + switch (vtx->attr_count) { + case 2: + if (vtx->attr[0].emit == insert_3f_viewport_3) { + if (vtx->attr[1].emit == insert_4ub_4f_bgra_4) + func = emit_viewport3_bgra4; + else if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) + func = emit_viewport3_rgba4; + } + else if (vtx->attr[0].emit == insert_3f_3 && + vtx->attr[1].emit == insert_4ub_4f_rgba_4) { + func = emit_xyz3_rgba4; + } + break; + case 3: + if (vtx->attr[2].emit == insert_2f_2) { + if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) { + if (vtx->attr[0].emit == insert_4f_viewport_4) + func = emit_viewport4_rgba4_st2; + else if (vtx->attr[0].emit == insert_4f_4) + func = emit_xyzw4_rgba4_st2; + } + else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 && + vtx->attr[0].emit == insert_4f_viewport_4) + func = emit_viewport4_bgra4_st2; + } + break; + case 4: + if (vtx->attr[2].emit == insert_2f_2 && + vtx->attr[3].emit == insert_2f_2) { + if (vtx->attr[1].emit == insert_4ub_4f_rgba_4) { + if (vtx->attr[0].emit == insert_4f_viewport_4) + func = emit_viewport4_rgba4_st2_st2; + else if (vtx->attr[0].emit == insert_4f_4) + func = emit_xyzw4_rgba4_st2_st2; + } + else if (vtx->attr[1].emit == insert_4ub_4f_bgra_4 && + vtx->attr[0].emit == insert_4f_viewport_4) + func = emit_viewport4_bgra4_st2_st2; + } + break; + } + + vtx->emit = func; +} + +/*********************************************************************** + * Generic (non-codegen) functions for whole vertices or groups of + * vertices + */ + +void _tnl_generic_emit( GLcontext *ctx, + GLuint count, + GLubyte *v ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + const GLuint stride = vtx->vertex_size; + GLuint i, j; + + for (i = 0 ; i < count ; i++, v += stride) { + for (j = 0; j < attr_count; j++) { + GLfloat *in = (GLfloat *)a[j].inputptr; + a[j].inputptr += a[j].inputstride; + a[j].emit( &a[j], v + a[j].vertoffset, in ); + } + } +} + + +void _tnl_generic_interp( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + const GLubyte *vin = vtx->vertex_buf + ein * vtx->vertex_size; + const GLubyte *vout = vtx->vertex_buf + eout * vtx->vertex_size; + GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size; + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + (void) force_boundary; + + if (tnl->NeedNdcCoords) { + const GLfloat *dstclip = VB->ClipPtr->data[edst]; + if (dstclip[3] != 0.0) { + const GLfloat w = 1.0f / dstclip[3]; + GLfloat pos[4]; + + pos[0] = dstclip[0] * w; + pos[1] = dstclip[1] * w; + pos[2] = dstclip[2] * w; + pos[3] = w; + + a[0].insert[4-1]( &a[0], vdst, pos ); + } + } + else { + a[0].insert[4-1]( &a[0], vdst, VB->ClipPtr->data[edst] ); + } + + + for (j = 1; j < attr_count; j++) { + GLfloat fin[4], fout[4], fdst[4]; + + a[j].extract( &a[j], fin, vin + a[j].vertoffset ); + a[j].extract( &a[j], fout, vout + a[j].vertoffset ); + + INTERP_F( t, fdst[3], fout[3], fin[3] ); + INTERP_F( t, fdst[2], fout[2], fin[2] ); + INTERP_F( t, fdst[1], fout[1], fin[1] ); + INTERP_F( t, fdst[0], fout[0], fin[0] ); + + a[j].insert[4-1]( &a[j], vdst + a[j].vertoffset, fdst ); + } +} + + +/* Extract color attributes from one vertex and insert them into + * another. (Shortcircuit extract/insert with memcpy). + */ +void _tnl_generic_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLubyte *vsrc = vtx->vertex_buf + esrc * vtx->vertex_size; + GLubyte *vdst = vtx->vertex_buf + edst * vtx->vertex_size; + const struct tnl_clipspace_attr *a = vtx->attr; + const GLuint attr_count = vtx->attr_count; + GLuint j; + + for (j = 0; j < attr_count; j++) { + if (a[j].attrib == VERT_ATTRIB_COLOR0 || + a[j].attrib == VERT_ATTRIB_COLOR1) { + + _mesa_memcpy( vdst + a[j].vertoffset, + vsrc + a[j].vertoffset, + a[j].vertattrsize ); + } + } +} + + +/* Helper functions for hardware which doesn't put back colors and/or + * edgeflags into vertices. + */ +void _tnl_generic_interp_extras( GLcontext *ctx, + GLfloat t, + GLuint dst, GLuint out, GLuint in, + GLboolean force_boundary ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + + /* If stride is zero, ColorPtr[1] is constant across the VB, so + * there is no point interpolating between two values as they will + * be identical. In all other cases, this value is generated by + * t_vb_lighttmp.h and has a stride of 4 dwords. + */ + if (VB->ColorPtr[1] && VB->ColorPtr[1]->stride) { + assert(VB->ColorPtr[1]->stride == 4 * sizeof(GLfloat)); + + INTERP_4F( t, + VB->ColorPtr[1]->data[dst], + VB->ColorPtr[1]->data[out], + VB->ColorPtr[1]->data[in] ); + } + + if (VB->SecondaryColorPtr[1]) { + assert(VB->SecondaryColorPtr[1]->stride == 4 * sizeof(GLfloat)); + + INTERP_3F( t, + VB->SecondaryColorPtr[1]->data[dst], + VB->SecondaryColorPtr[1]->data[out], + VB->SecondaryColorPtr[1]->data[in] ); + } + + if (VB->IndexPtr[1]) { + VB->IndexPtr[1]->data[dst][0] = LINTERP( t, + VB->IndexPtr[1]->data[out][0], + VB->IndexPtr[1]->data[in][0] ); + } + + if (VB->EdgeFlag) { + VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary; + } + + _tnl_generic_interp(ctx, t, dst, out, in, force_boundary); +} + +void _tnl_generic_copy_pv_extras( GLcontext *ctx, + GLuint dst, GLuint src ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + + /* See above comment: + */ + if (VB->ColorPtr[1] && VB->ColorPtr[1]->stride) { + COPY_4FV( VB->ColorPtr[1]->data[dst], + VB->ColorPtr[1]->data[src] ); + } + + if (VB->SecondaryColorPtr[1]) { + COPY_4FV( VB->SecondaryColorPtr[1]->data[dst], + VB->SecondaryColorPtr[1]->data[src] ); + } + + if (VB->IndexPtr[1]) { + VB->IndexPtr[1]->data[dst][0] = VB->IndexPtr[1]->data[src][0]; + } + + _tnl_generic_copy_pv(ctx, dst, src); +} + + diff --git a/mesalib/src/mesa/tnl/t_vertex_sse.c b/mesalib/src/mesa/tnl/t_vertex_sse.c new file mode 100644 index 000000000..7a255d680 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vertex_sse.c @@ -0,0 +1,684 @@ +/* + * Copyright 2003 Tungsten Graphics, inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/context.h" +#include "main/colormac.h" +#include "main/simple_list.h" +#include "main/enums.h" +#include "t_context.h" +#include "t_vertex.h" + +#if defined(USE_SSE_ASM) + +#include "x86/rtasm/x86sse.h" +#include "x86/common_x86_asm.h" + + +/** + * Number of bytes to allocate for generated SSE functions + */ +#define MAX_SSE_CODE_SIZE 1024 + + +#define X 0 +#define Y 1 +#define Z 2 +#define W 3 + + +struct x86_program { + struct x86_function func; + + GLcontext *ctx; + GLboolean inputs_safe; + GLboolean outputs_safe; + GLboolean have_sse2; + + struct x86_reg identity; + struct x86_reg chan0; +}; + + +static struct x86_reg get_identity( struct x86_program *p ) +{ + return p->identity; +} + +static void emit_load4f_4( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movups(&p->func, dest, arg0); +} + +static void emit_load4f_3( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Have to jump through some hoops: + * + * c 0 0 0 + * c 0 0 1 + * 0 0 c 1 + * a b c 1 + */ + sse_movss(&p->func, dest, x86_make_disp(arg0, 8)); + sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) ); + sse_shufps(&p->func, dest, dest, SHUF(Y,Z,X,W) ); + sse_movlps(&p->func, dest, arg0); +} + +static void emit_load4f_2( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Initialize from identity, then pull in low two words: + */ + sse_movups(&p->func, dest, get_identity(p)); + sse_movlps(&p->func, dest, arg0); +} + +static void emit_load4f_1( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Pull in low word, then swizzle in identity */ + sse_movss(&p->func, dest, arg0); + sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) ); +} + + + +static void emit_load3f_3( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Over-reads by 1 dword - potential SEGV if input is a vertex + * array. + */ + if (p->inputs_safe) { + sse_movups(&p->func, dest, arg0); + } + else { + /* c 0 0 0 + * c c c c + * a b c c + */ + sse_movss(&p->func, dest, x86_make_disp(arg0, 8)); + sse_shufps(&p->func, dest, dest, SHUF(X,X,X,X)); + sse_movlps(&p->func, dest, arg0); + } +} + +static void emit_load3f_2( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + emit_load4f_2(p, dest, arg0); +} + +static void emit_load3f_1( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Loading from memory erases the upper bits. */ + sse_movss(&p->func, dest, arg0); +} + +static void emit_load2f_2( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movlps(&p->func, dest, arg0); +} + +static void emit_load2f_1( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + /* Loading from memory erases the upper bits. */ + sse_movss(&p->func, dest, arg0); +} + +static void emit_load1f_1( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movss(&p->func, dest, arg0); +} + +static void (*load[4][4])( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) = { + { emit_load1f_1, + emit_load1f_1, + emit_load1f_1, + emit_load1f_1 }, + + { emit_load2f_1, + emit_load2f_2, + emit_load2f_2, + emit_load2f_2 }, + + { emit_load3f_1, + emit_load3f_2, + emit_load3f_3, + emit_load3f_3 }, + + { emit_load4f_1, + emit_load4f_2, + emit_load4f_3, + emit_load4f_4 } +}; + +static void emit_load( struct x86_program *p, + struct x86_reg dest, + GLuint sz, + struct x86_reg src, + GLuint src_sz) +{ + load[sz-1][src_sz-1](p, dest, src); +} + +static void emit_store4f( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movups(&p->func, dest, arg0); +} + +static void emit_store3f( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + if (p->outputs_safe) { + /* Emit the extra dword anyway. This may hurt writecombining, + * may cause other problems. + */ + sse_movups(&p->func, dest, arg0); + } + else { + /* Alternate strategy - emit two, shuffle, emit one. + */ + sse_movlps(&p->func, dest, arg0); + sse_shufps(&p->func, arg0, arg0, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */ + sse_movss(&p->func, x86_make_disp(dest,8), arg0); + } +} + +static void emit_store2f( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movlps(&p->func, dest, arg0); +} + +static void emit_store1f( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) +{ + sse_movss(&p->func, dest, arg0); +} + + +static void (*store[4])( struct x86_program *p, + struct x86_reg dest, + struct x86_reg arg0 ) = +{ + emit_store1f, + emit_store2f, + emit_store3f, + emit_store4f +}; + +static void emit_store( struct x86_program *p, + struct x86_reg dest, + GLuint sz, + struct x86_reg temp ) + +{ + store[sz-1](p, dest, temp); +} + +static void emit_pack_store_4ub( struct x86_program *p, + struct x86_reg dest, + struct x86_reg temp ) +{ + /* Scale by 255.0 + */ + sse_mulps(&p->func, temp, p->chan0); + + if (p->have_sse2) { + sse2_cvtps2dq(&p->func, temp, temp); + sse2_packssdw(&p->func, temp, temp); + sse2_packuswb(&p->func, temp, temp); + sse_movss(&p->func, dest, temp); + } + else { + struct x86_reg mmx0 = x86_make_reg(file_MMX, 0); + struct x86_reg mmx1 = x86_make_reg(file_MMX, 1); + sse_cvtps2pi(&p->func, mmx0, temp); + sse_movhlps(&p->func, temp, temp); + sse_cvtps2pi(&p->func, mmx1, temp); + mmx_packssdw(&p->func, mmx0, mmx1); + mmx_packuswb(&p->func, mmx0, mmx0); + mmx_movd(&p->func, dest, mmx0); + } +} + +static GLint get_offset( const void *a, const void *b ) +{ + return (const char *)b - (const char *)a; +} + +/* Not much happens here. Eventually use this function to try and + * avoid saving/reloading the source pointers each vertex (if some of + * them can fit in registers). + */ +static void get_src_ptr( struct x86_program *p, + struct x86_reg srcREG, + struct x86_reg vtxREG, + struct tnl_clipspace_attr *a ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx); + struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr)); + + /* Load current a[j].inputptr + */ + x86_mov(&p->func, srcREG, ptr_to_src); +} + +static void update_src_ptr( struct x86_program *p, + struct x86_reg srcREG, + struct x86_reg vtxREG, + struct tnl_clipspace_attr *a ) +{ + if (a->inputstride) { + struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx); + struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr)); + + /* add a[j].inputstride (hardcoded value - could just as easily + * pull the stride value from memory each time). + */ + x86_lea(&p->func, srcREG, x86_make_disp(srcREG, a->inputstride)); + + /* save new value of a[j].inputptr + */ + x86_mov(&p->func, ptr_to_src, srcREG); + } +} + + +/* Lots of hardcoding + * + * EAX -- pointer to current output vertex + * ECX -- pointer to current attribute + * + */ +static GLboolean build_vertex_emit( struct x86_program *p ) +{ + GLcontext *ctx = p->ctx; + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + GLuint j = 0; + + struct x86_reg vertexEAX = x86_make_reg(file_REG32, reg_AX); + struct x86_reg srcECX = x86_make_reg(file_REG32, reg_CX); + struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP); + struct x86_reg vtxESI = x86_make_reg(file_REG32, reg_SI); + struct x86_reg temp = x86_make_reg(file_XMM, 0); + struct x86_reg vp0 = x86_make_reg(file_XMM, 1); + struct x86_reg vp1 = x86_make_reg(file_XMM, 2); + struct x86_reg temp2 = x86_make_reg(file_XMM, 3); + GLubyte *fixup, *label; + + /* Push a few regs? + */ + x86_push(&p->func, countEBP); + x86_push(&p->func, vtxESI); + + + /* Get vertex count, compare to zero + */ + x86_xor(&p->func, srcECX, srcECX); + x86_mov(&p->func, countEBP, x86_fn_arg(&p->func, 2)); + x86_cmp(&p->func, countEBP, srcECX); + fixup = x86_jcc_forward(&p->func, cc_E); + + /* Initialize destination register. + */ + x86_mov(&p->func, vertexEAX, x86_fn_arg(&p->func, 3)); + + /* Dereference ctx to get tnl, then vtx: + */ + x86_mov(&p->func, vtxESI, x86_fn_arg(&p->func, 1)); + x86_mov(&p->func, vtxESI, x86_make_disp(vtxESI, get_offset(ctx, &ctx->swtnl_context))); + vtxESI = x86_make_disp(vtxESI, get_offset(tnl, &tnl->clipspace)); + + + /* Possibly load vp0, vp1 for viewport calcs: + */ + if (vtx->need_viewport) { + sse_movups(&p->func, vp0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_scale[0]))); + sse_movups(&p->func, vp1, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_xlate[0]))); + } + + /* always load, needed or not: + */ + sse_movups(&p->func, p->chan0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->chan_scale[0]))); + sse_movups(&p->func, p->identity, x86_make_disp(vtxESI, get_offset(vtx, &vtx->identity[0]))); + + /* Note address for loop jump */ + label = x86_get_label(&p->func); + + /* Emit code for each of the attributes. Currently routes + * everything through SSE registers, even when it might be more + * efficient to stick with regular old x86. No optimization or + * other tricks - enough new ground to cover here just getting + * things working. + */ + while (j < vtx->attr_count) { + struct tnl_clipspace_attr *a = &vtx->attr[j]; + struct x86_reg dest = x86_make_disp(vertexEAX, a->vertoffset); + + /* Now, load an XMM reg from src, perhaps transform, then save. + * Could be shortcircuited in specific cases: + */ + switch (a->format) { + case EMIT_1F: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 1, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_2F: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 2, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_3F: + /* Potentially the worst case - hardcode 2+1 copying: + */ + if (0) { + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 3, temp); + update_src_ptr(p, srcECX, vtxESI, a); + } + else { + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 2, temp); + if (a->inputsize > 2) { + emit_load(p, temp, 1, x86_make_disp(srcECX, 8), 1); + emit_store(p, x86_make_disp(dest,8), 1, temp); + } + else { + sse_movss(&p->func, x86_make_disp(dest,8), get_identity(p)); + } + update_src_ptr(p, srcECX, vtxESI, a); + } + break; + case EMIT_4F: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 4, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_2F_VIEWPORT: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize); + sse_mulps(&p->func, temp, vp0); + sse_addps(&p->func, temp, vp1); + emit_store(p, dest, 2, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_3F_VIEWPORT: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize); + sse_mulps(&p->func, temp, vp0); + sse_addps(&p->func, temp, vp1); + emit_store(p, dest, 3, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_4F_VIEWPORT: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + sse_mulps(&p->func, temp, vp0); + sse_addps(&p->func, temp, vp1); + emit_store(p, dest, 4, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_3F_XYW: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + sse_shufps(&p->func, temp, temp, SHUF(X,Y,W,Z)); + emit_store(p, dest, 3, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + + case EMIT_1UB_1F: + /* Test for PAD3 + 1UB: + */ + if (j > 0 && + a[-1].vertoffset + a[-1].vertattrsize <= a->vertoffset - 3) + { + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize); + sse_shufps(&p->func, temp, temp, SHUF(X,X,X,X)); + emit_pack_store_4ub(p, x86_make_disp(dest, -3), temp); /* overkill! */ + update_src_ptr(p, srcECX, vtxESI, a); + } + else { + _mesa_printf("Can't emit 1ub %x %x %d\n", a->vertoffset, a[-1].vertoffset, a[-1].vertattrsize ); + return GL_FALSE; + } + break; + case EMIT_3UB_3F_RGB: + case EMIT_3UB_3F_BGR: + /* Test for 3UB + PAD1: + */ + if (j == vtx->attr_count - 1 || + a[1].vertoffset >= a->vertoffset + 4) { + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize); + if (a->format == EMIT_3UB_3F_BGR) + sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W)); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + } + /* Test for 3UB + 1UB: + */ + else if (j < vtx->attr_count - 1 && + a[1].format == EMIT_1UB_1F && + a[1].vertoffset == a->vertoffset + 3) { + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize); + update_src_ptr(p, srcECX, vtxESI, a); + + /* Make room for incoming value: + */ + sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z)); + + get_src_ptr(p, srcECX, vtxESI, &a[1]); + emit_load(p, temp2, 1, x86_deref(srcECX), a[1].inputsize); + sse_movss(&p->func, temp, temp2); + update_src_ptr(p, srcECX, vtxESI, &a[1]); + + /* Rearrange and possibly do BGR conversion: + */ + if (a->format == EMIT_3UB_3F_BGR) + sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X)); + else + sse_shufps(&p->func, temp, temp, SHUF(Y,Z,W,X)); + + emit_pack_store_4ub(p, dest, temp); + j++; /* NOTE: two attrs consumed */ + } + else { + _mesa_printf("Can't emit 3ub\n"); + return GL_FALSE; /* add this later */ + } + break; + + case EMIT_4UB_4F_RGBA: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_4UB_4F_BGRA: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W)); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_4UB_4F_ARGB: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z)); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_4UB_4F_ABGR: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X)); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case EMIT_4CHAN_4F_RGBA: + switch (CHAN_TYPE) { + case GL_UNSIGNED_BYTE: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + emit_pack_store_4ub(p, dest, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case GL_FLOAT: + get_src_ptr(p, srcECX, vtxESI, a); + emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize); + emit_store(p, dest, 4, temp); + update_src_ptr(p, srcECX, vtxESI, a); + break; + case GL_UNSIGNED_SHORT: + default: + _mesa_printf("unknown CHAN_TYPE %s\n", _mesa_lookup_enum_by_nr(CHAN_TYPE)); + return GL_FALSE; + } + break; + default: + _mesa_printf("unknown a[%d].format %d\n", j, a->format); + return GL_FALSE; /* catch any new opcodes */ + } + + /* Increment j by at least 1 - may have been incremented above also: + */ + j++; + } + + /* Next vertex: + */ + x86_lea(&p->func, vertexEAX, x86_make_disp(vertexEAX, vtx->vertex_size)); + + /* decr count, loop if not zero + */ + x86_dec(&p->func, countEBP); + x86_test(&p->func, countEBP, countEBP); + x86_jcc(&p->func, cc_NZ, label); + + /* Exit mmx state? + */ + if (p->func.need_emms) + mmx_emms(&p->func); + + /* Land forward jump here: + */ + x86_fixup_fwd_jump(&p->func, fixup); + + /* Pop regs and return + */ + x86_pop(&p->func, x86_get_base_reg(vtxESI)); + x86_pop(&p->func, countEBP); + x86_ret(&p->func); + + assert(!vtx->emit); + vtx->emit = (tnl_emit_func)x86_get_func(&p->func); + + assert( (char *) p->func.csr - (char *) p->func.store <= MAX_SSE_CODE_SIZE ); + return GL_TRUE; +} + + + +void _tnl_generate_sse_emit( GLcontext *ctx ) +{ + struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx); + struct x86_program p; + + if (!cpu_has_xmm) { + vtx->codegen_emit = NULL; + return; + } + + _mesa_memset(&p, 0, sizeof(p)); + + p.ctx = ctx; + p.inputs_safe = 0; /* for now */ + p.outputs_safe = 0; /* for now */ + p.have_sse2 = cpu_has_xmm2; + p.identity = x86_make_reg(file_XMM, 6); + p.chan0 = x86_make_reg(file_XMM, 7); + + if (!x86_init_func_size(&p.func, MAX_SSE_CODE_SIZE)) { + vtx->emit = NULL; + return; + } + + if (build_vertex_emit(&p)) { + _tnl_register_fastpath( vtx, GL_TRUE ); + } + else { + /* Note the failure so that we don't keep trying to codegen an + * impossible state: + */ + _tnl_register_fastpath( vtx, GL_FALSE ); + x86_release_func(&p.func); + } +} + +#else + +void _tnl_generate_sse_emit( GLcontext *ctx ) +{ + /* Dummy version for when USE_SSE_ASM not defined */ +} + +#endif diff --git a/mesalib/src/mesa/tnl/t_vp_build.c b/mesalib/src/mesa/tnl/t_vp_build.c new file mode 100644 index 000000000..735937bbe --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vp_build.c @@ -0,0 +1,60 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 2007 Tungsten Graphics All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file t_vp_build.c + * Create a vertex program to execute the current fixed function T&L pipeline. + * \author Keith Whitwell + */ + + +#include "main/glheader.h" +#include "main/ffvertex_prog.h" +#include "main/dd.h" +#include "t_vp_build.h" + + +/** + * XXX This should go away someday, but still referenced by some drivers... + */ +void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx ) +{ + const struct gl_vertex_program *prev = ctx->VertexProgram._Current; + + if (!ctx->VertexProgram._Current || + ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram) { + ctx->VertexProgram._Current + = ctx->VertexProgram._TnlProgram + = _mesa_get_fixed_func_vertex_program(ctx); + } + + /* Tell the driver about the change. Could define a new target for + * this? + */ + if (ctx->VertexProgram._Current != prev && ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, + (struct gl_program *) ctx->VertexProgram._Current); + } +} diff --git a/mesalib/src/mesa/tnl/t_vp_build.h b/mesalib/src/mesa/tnl/t_vp_build.h new file mode 100644 index 000000000..d6ebc66c0 --- /dev/null +++ b/mesalib/src/mesa/tnl/t_vp_build.h @@ -0,0 +1,42 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 2005 Tungsten Graphics All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef T_VP_BUILD_H +#define T_VP_BUILD_H + +#include "main/mtypes.h" + +#define TNL_FIXED_FUNCTION_STATE_FLAGS (_NEW_PROGRAM | \ + _NEW_LIGHT | \ + _NEW_TEXTURE | \ + _NEW_TEXTURE_MATRIX | \ + _NEW_TRANSFORM | \ + _NEW_FOG | \ + _NEW_POINT) + +extern void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx ); + +#endif diff --git a/mesalib/src/mesa/tnl/tnl.h b/mesalib/src/mesa/tnl/tnl.h new file mode 100644 index 000000000..9c66d3b01 --- /dev/null +++ b/mesalib/src/mesa/tnl/tnl.h @@ -0,0 +1,100 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef _TNL_H +#define _TNL_H + +#include "main/mtypes.h" + + + +/* These are the public-access functions exported from tnl. (A few + * more are currently hooked into dispatch directly by the module + * itself.) + */ +extern GLboolean +_tnl_CreateContext( GLcontext *ctx ); + +extern void +_tnl_DestroyContext( GLcontext *ctx ); + +extern void +_tnl_InvalidateState( GLcontext *ctx, GLuint new_state ); + +/* Functions to revive the tnl module after being unhooked from + * dispatch and/or driver callbacks. + */ + +extern void +_tnl_wakeup( GLcontext *ctx ); + +/* Driver configuration options: + */ +extern void +_tnl_need_projected_coords( GLcontext *ctx, GLboolean flag ); + + +/* Control whether T&L does per-vertex fog + */ +extern void +_tnl_allow_vertex_fog( GLcontext *ctx, GLboolean value ); + +extern void +_tnl_allow_pixel_fog( GLcontext *ctx, GLboolean value ); + +extern void +_tnl_program_string(GLcontext *ctx, GLenum target, struct gl_program *program); + +struct _mesa_prim; +struct _mesa_index_buffer; + +void +_tnl_draw_prims( GLcontext *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLuint min_index, + GLuint max_index); + +void +_tnl_vbo_draw_prims( GLcontext *ctx, + const struct gl_client_array *arrays[], + const struct _mesa_prim *prim, + GLuint nr_prims, + const struct _mesa_index_buffer *ib, + GLboolean index_bounds_valid, + GLuint min_index, + GLuint max_index); + +extern void +_mesa_load_tracked_matrices(GLcontext *ctx); + +extern void +_tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4]); + +#endif |