From a0c4815433ccd57322f4f7703ca35e9ccfa59250 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 8 Oct 2009 13:15:52 +0000 Subject: Added MesaLib-7.6 --- mesalib/src/mesa/swrast_setup/ss_context.c | 317 +++++++++++++++++++++++++++++ 1 file changed, 317 insertions(+) create mode 100644 mesalib/src/mesa/swrast_setup/ss_context.c (limited to 'mesalib/src/mesa/swrast_setup/ss_context.c') diff --git a/mesalib/src/mesa/swrast_setup/ss_context.c b/mesalib/src/mesa/swrast_setup/ss_context.c new file mode 100644 index 000000000..61172f997 --- /dev/null +++ b/mesalib/src/mesa/swrast_setup/ss_context.c @@ -0,0 +1,317 @@ +/* + * 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 + */ + +#include "main/glheader.h" +#include "main/imports.h" +#include "main/colormac.h" +#include "tnl/tnl.h" +#include "tnl/t_context.h" +#include "tnl/t_pipeline.h" +#include "tnl/t_vertex.h" +#include "swrast_setup.h" +#include "ss_context.h" +#include "ss_triangle.h" + + +/* Need to check lighting state and vertex program state to know + * if two-sided lighting is in effect. + */ +#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT|_NEW_PROGRAM) + + +#define VARYING_EMIT_STYLE EMIT_4F + + +GLboolean +_swsetup_CreateContext( GLcontext *ctx ) +{ + SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext)); + + if (!swsetup) + return GL_FALSE; + + ctx->swsetup_context = swsetup; + + swsetup->NewState = ~0; + _swsetup_trifuncs_init( ctx ); + + _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, + sizeof(SWvertex) ); + + + return GL_TRUE; +} + +void +_swsetup_DestroyContext( GLcontext *ctx ) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + + if (swsetup) { + FREE(swsetup); + ctx->swsetup_context = 0; + } + + _tnl_free_vertices( ctx ); +} + +static void +_swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode ) +{ + SWSETUP_CONTEXT(ctx)->render_prim = mode; + _swrast_render_primitive( ctx, mode ); +} + + +/** + * Helper macros for setup_vertex_format() + */ +#define SWZ ((SWvertex *)0) +#define SWOffset(MEMBER) (((char *)&(SWZ->MEMBER)) - ((char *)SWZ)) + +#define EMIT_ATTR( ATTR, STYLE, MEMBER ) \ +do { \ + map[e].attrib = (ATTR); \ + map[e].format = (STYLE); \ + map[e].offset = SWOffset(MEMBER); \ + e++; \ +} while (0) + + +/** + * Tell the tnl module how to build SWvertex objects for swrast. + * We'll build the map[] array with that info and pass it to + * _tnl_install_attrs(). + */ +static void +setup_vertex_format(GLcontext *ctx) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + GLboolean intColors = !ctx->FragmentProgram._Current + && !ctx->ATIFragmentShader._Enabled + && ctx->RenderMode == GL_RENDER + && CHAN_TYPE == GL_UNSIGNED_BYTE; + + if (intColors != swsetup->intColors || + !RENDERINPUTS_EQUAL(tnl->render_inputs_bitset, + swsetup->last_index_bitset)) { + DECLARE_RENDERINPUTS(index_bitset); + struct tnl_attr_map map[_TNL_ATTRIB_MAX]; + int i, e = 0; + + swsetup->intColors = intColors; + + RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset ); + + EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[FRAG_ATTRIB_WPOS] ); + + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR0 )) { + if (swsetup->intColors) + EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color ); + else + EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[FRAG_ATTRIB_COL0]); + } + + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) { + EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[FRAG_ATTRIB_COL1]); + } + + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR_INDEX )) { + EMIT_ATTR( _TNL_ATTRIB_COLOR_INDEX, EMIT_1F, + attrib[FRAG_ATTRIB_CI][0] ); + } + + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) { + const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F; + EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[FRAG_ATTRIB_FOGC]); + } + + if (RENDERINPUTS_TEST_RANGE(index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX)) + { + for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX(i) )) { + EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F, + attrib[FRAG_ATTRIB_TEX0 + i] ); + } + } + } + + /* shader varying vars */ + if (RENDERINPUTS_TEST_RANGE( index_bitset, + _TNL_FIRST_GENERIC, _TNL_LAST_GENERIC )) { + for (i = 0; i < ctx->Const.MaxVarying; i++) { + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_GENERIC(i) )) { + EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE, + attrib[FRAG_ATTRIB_VAR0 + i] ); + } + } + } + + if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_POINTSIZE )) + EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize ); + + _tnl_install_attrs( ctx, map, e, + ctx->Viewport._WindowMap.m, + sizeof(SWvertex) ); + + RENDERINPUTS_COPY( swsetup->last_index_bitset, index_bitset ); + } +} + + +/** + * Prepare to render a vertex buffer. + * Called via tnl->Driver.Render.Start. + */ +static void +_swsetup_RenderStart( GLcontext *ctx ) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + if (swsetup->NewState & _SWSETUP_NEW_RENDERINDEX) { + _swsetup_choose_trifuncs(ctx); + } + + if (swsetup->NewState & _NEW_PROGRAM) { + RENDERINPUTS_ZERO( swsetup->last_index_bitset ); + } + + swsetup->NewState = 0; + + /* This will change if drawing unfilled tris */ + _swrast_SetFacing(ctx, 0); + + _swrast_render_start(ctx); + + /* Important */ + VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; + + setup_vertex_format(ctx); +} + + +/* + * We patch this function into tnl->Driver.Render.Finish. + * It's called when we finish rendering a vertex buffer. + */ +static void +_swsetup_RenderFinish( GLcontext *ctx ) +{ + _swrast_render_finish( ctx ); +} + +void +_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state ) +{ + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + swsetup->NewState |= new_state; + _tnl_invalidate_vertex_state( ctx, new_state ); +} + + +void +_swsetup_Wakeup( GLcontext *ctx ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + SScontext *swsetup = SWSETUP_CONTEXT(ctx); + + tnl->Driver.Render.Start = _swsetup_RenderStart; + tnl->Driver.Render.Finish = _swsetup_RenderFinish; + tnl->Driver.Render.PrimitiveNotify = _swsetup_RenderPrimitive; + tnl->Driver.Render.Interp = _tnl_interp; + tnl->Driver.Render.CopyPV = _tnl_copy_pv; + tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; /* new */ + tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine; /* new */ + /* points */ + /* line */ + /* triangle */ + /* quad */ + tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; + tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; + tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; + tnl->Driver.Render.BuildVertices = _tnl_build_vertices; + tnl->Driver.Render.Multipass = 0; + + _tnl_invalidate_vertices( ctx, ~0 ); + _tnl_need_projected_coords( ctx, GL_TRUE ); + _swsetup_InvalidateState( ctx, ~0 ); + + swsetup->verts = (SWvertex *)tnl->clipspace.vertex_buf; + RENDERINPUTS_ZERO( swsetup->last_index_bitset ); +} + + +/** + * Populate a swrast SWvertex from an attrib-style vertex. + */ +void +_swsetup_Translate( GLcontext *ctx, const void *vertex, SWvertex *dest ) +{ + const GLfloat *m = ctx->Viewport._WindowMap.m; + GLfloat tmp[4]; + GLuint i; + + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POS, tmp ); + + dest->attrib[FRAG_ATTRIB_WPOS][0] = m[0] * tmp[0] + m[12]; + dest->attrib[FRAG_ATTRIB_WPOS][1] = m[5] * tmp[1] + m[13]; + dest->attrib[FRAG_ATTRIB_WPOS][2] = m[10] * tmp[2] + m[14]; + dest->attrib[FRAG_ATTRIB_WPOS][3] = tmp[3]; + + /** XXX try to limit these loops someday */ + for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_TEX0 + i, + dest->attrib[FRAG_ATTRIB_TEX0 + i] ); + + for (i = 0 ; i < ctx->Const.MaxVarying ; i++) + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_GENERIC0 + i, + dest->attrib[FRAG_ATTRIB_VAR0 + i] ); + + if (ctx->Visual.rgbMode) { + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR0, + dest->attrib[FRAG_ATTRIB_COL0] ); + UNCLAMPED_FLOAT_TO_RGBA_CHAN( dest->color, tmp ); + + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR1, + dest->attrib[FRAG_ATTRIB_COL1]); + } + else { + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR_INDEX, tmp ); + dest->attrib[FRAG_ATTRIB_CI][0] = tmp[0]; + } + + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_FOG, tmp ); + dest->attrib[FRAG_ATTRIB_FOGC][0] = tmp[0]; + + /* XXX See _tnl_get_attr about pointsize ... */ + _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POINTSIZE, tmp ); + dest->pointSize = tmp[0]; +} + -- cgit v1.2.3