From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Mon, 10 Oct 2011 17:43:39 +0200 Subject: Imported nx-X11-3.1.0-1.tar.gz Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository --- nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c | 281 +++++++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c (limited to 'nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c') diff --git a/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c b/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c new file mode 100644 index 000000000..d77f5424c --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/tnl/t_vb_program.c @@ -0,0 +1,281 @@ +/* + * Mesa 3-D graphics library + * Version: 6.1 + * + * Copyright (C) 1999-2004 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 tnl/t_vb_program.c + * \brief Pipeline stage for executing NVIDIA vertex programs. + * \author Brian Paul, Keith Whitwell + */ + + +#include "glheader.h" +#include "api_noop.h" +#include "colormac.h" +#include "context.h" +#include "dlist.h" +#include "hash.h" +#include "light.h" +#include "macros.h" +#include "imports.h" +#include "simple_list.h" +#include "mtypes.h" +#include "nvvertprog.h" +#include "nvvertexec.h" +#include "nvprogram.h" + +#include "math/m_translate.h" + +#include "t_context.h" +#include "t_pipeline.h" + + + +/*! + * Private storage for the vertex program pipeline stage. + */ +struct vp_stage_data { + /** The results of running the vertex program go into these arrays. */ + GLvector4f attribs[15]; + + 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)) + + +/** + * 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 vertex_program *program = ctx->VertexProgram.Current; + GLuint i; + + if (!ctx->VertexProgram._Enabled || + !program->IsNVProgram) + return GL_TRUE; + + /* load program parameter registers (they're read-only) */ + _mesa_init_vp_per_primitive_registers(ctx); + + for (i = 0; i < VB->Count; i++) { + GLuint attr; + + _mesa_init_vp_per_vertex_registers(ctx); + +#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->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); + COPY_CLEAN_4V(ctx->VertexProgram.Inputs[attr], size, data); + } + } + + /* execute the program */ + ASSERT(program); + _mesa_exec_vertex_program(ctx, program); + + /* Fixup fog an point size results if needed */ + if (ctx->Fog.Enabled && + (program->OutputsWritten & (1 << VERT_RESULT_FOGC)) == 0) { + ctx->VertexProgram.Outputs[VERT_RESULT_FOGC][0] = 1.0; + } + + if (ctx->VertexProgram.PointSizeEnabled && + (program->OutputsWritten & (1 << VERT_RESULT_PSIZ)) == 0) { + ctx->VertexProgram.Outputs[VERT_RESULT_PSIZ][0] = ctx->Point.Size; + } + + /* copy the output registers into the VB->attribs arrays */ + /* XXX (optimize) could use a conditional and smaller loop limit here */ + for (attr = 0; attr < 15; attr++) { + COPY_4V(store->attribs[attr].data[i], + ctx->VertexProgram.Outputs[attr]); + } + } + + /* Setup the VB pointers so that the next pipeline stages get + * their data from the right place (the program output arrays). + */ + VB->ClipPtr = &store->attribs[VERT_RESULT_HPOS]; + VB->ClipPtr->size = 4; + VB->ClipPtr->count = VB->Count; + VB->ColorPtr[0] = &store->attribs[VERT_RESULT_COL0]; + VB->ColorPtr[1] = &store->attribs[VERT_RESULT_BFC0]; + VB->SecondaryColorPtr[0] = &store->attribs[VERT_RESULT_COL1]; + VB->SecondaryColorPtr[1] = &store->attribs[VERT_RESULT_BFC1]; + VB->FogCoordPtr = &store->attribs[VERT_RESULT_FOGC]; + VB->PointSizePtr = &store->attribs[VERT_RESULT_PSIZ]; + + VB->AttribPtr[VERT_ATTRIB_COLOR0] = VB->ColorPtr[0]; + VB->AttribPtr[VERT_ATTRIB_COLOR1] = VB->SecondaryColorPtr[0]; + VB->AttribPtr[VERT_ATTRIB_FOG] = VB->FogCoordPtr; + VB->AttribPtr[_TNL_ATTRIB_POINTSIZE] = &store->attribs[VERT_RESULT_PSIZ]; + + for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { + VB->AttribPtr[VERT_ATTRIB_TEX0+i] = VB->TexCoordPtr[i] = + &store->attribs[VERT_RESULT_TEX0 + i]; + } + + + + /* Cliptest and perspective divide. Clip functions must clear + * the clipmask. + */ + store->ormask = 0; + store->andmask = CLIP_ALL_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; + + + /* This is where we'd do clip testing against the user-defined + * clipping planes, but they're not supported by vertex programs. + */ + + VB->ClipOrMask = store->ormask; + VB->ClipMask = store->clipmask; + + return GL_TRUE; +} + + + + +/** + * 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 < 15; i++) { + _mesa_vector4f_alloc( &store->attribs[i], 0, size, 32 ); + store->attribs[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->attribs[i] ); + + /* free misc arrays */ + _mesa_vector4f_free( &store->ndcCoords ); + ALIGN_FREE( store->clipmask ); + + FREE( store ); + stage->privatePtr = NULL; + } +} + +/** + * 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 */ + NULL, /* validate */ + run_vp /* run -- initially set to ctr */ +}; -- cgit v1.2.3