diff options
Diffstat (limited to 'src/mesa/swrast/s_context.c')
-rw-r--r-- | src/mesa/swrast/s_context.c | 100 |
1 files changed, 73 insertions, 27 deletions
diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c index 1c9a098a2d..5e174f81d5 100644 --- a/src/mesa/swrast/s_context.c +++ b/src/mesa/swrast/s_context.c @@ -2,7 +2,7 @@ * Mesa 3-D graphics library * Version: 6.5.3 * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * 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"), @@ -31,7 +31,7 @@ #include "context.h" #include "colormac.h" #include "mtypes.h" -#include "program.h" +#include "prog_statevars.h" #include "teximage.h" #include "swrast.h" #include "s_blend.h" @@ -98,11 +98,11 @@ _swrast_update_rasterflags( GLcontext *ctx ) rasterMask |= MULTI_DRAW_BIT; /* all color index bits disabled */ } - if (ctx->FragmentProgram._Enabled) { + if (ctx->FragmentProgram._Current) { rasterMask |= FRAGPROG_BIT; } - if (ctx->ShaderObjects._FragmentShaderPresent) { + if (ctx->Shader._FragmentShaderPresent) { rasterMask |= FRAGPROG_BIT; } @@ -165,7 +165,7 @@ _swrast_update_fog_hint( GLcontext *ctx ) { SWcontext *swrast = SWRAST_CONTEXT(ctx); swrast->_PreferPixelFog = (!swrast->AllowVertexFog || - ctx->FragmentProgram._Enabled || /* not _Active! */ + ctx->FragmentProgram._Current || (ctx->Hint.Fog == GL_NICEST && swrast->AllowPixelFog)); } @@ -198,20 +198,14 @@ static void _swrast_update_fog_state( GLcontext *ctx ) { SWcontext *swrast = SWRAST_CONTEXT(ctx); + const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; /* determine if fog is needed, and if so, which fog mode */ swrast->_FogEnabled = GL_FALSE; - if (ctx->ShaderObjects._FragmentShaderPresent) { - swrast->_FogEnabled = GL_FALSE; - } - else if (ctx->FragmentProgram._Enabled) { - if (ctx->FragmentProgram._Current->Base.Target==GL_FRAGMENT_PROGRAM_ARB) { - const struct gl_fragment_program *fp - = ctx->FragmentProgram._Current; - if (fp->FogOption != GL_NONE) { - swrast->_FogEnabled = GL_TRUE; - swrast->_FogMode = fp->FogOption; - } + if (fp && fp->Base.Target == GL_FRAGMENT_PROGRAM_ARB) { + if (fp->FogOption != GL_NONE) { + swrast->_FogEnabled = GL_TRUE; + swrast->_FogMode = fp->FogOption; } } else if (ctx->Fog.Enabled) { @@ -228,8 +222,8 @@ _swrast_update_fog_state( GLcontext *ctx ) static void _swrast_update_fragment_program(GLcontext *ctx, GLbitfield newState) { - if (ctx->FragmentProgram._Enabled) { - const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; + const struct gl_fragment_program *fp = ctx->FragmentProgram._Current; + if (fp) { #if 0 /* XXX Need a way to trigger the initial loading of parameters * even when there's no recent state changes. @@ -304,7 +298,7 @@ _swrast_validate_triangle( GLcontext *ctx, if (ctx->Texture._EnabledUnits == 0 && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Enabled) { + && !ctx->FragmentProgram._Current) { /* separate specular color, but no texture */ swrast->SpecTriangle = swrast->Triangle; swrast->Triangle = _swrast_add_spec_terms_triangle; @@ -328,7 +322,7 @@ _swrast_validate_line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 ) if (ctx->Texture._EnabledUnits == 0 && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Enabled) { + && !ctx->FragmentProgram._Current) { swrast->SpecLine = swrast->Line; swrast->Line = _swrast_add_spec_terms_line; } @@ -351,7 +345,7 @@ _swrast_validate_point( GLcontext *ctx, const SWvertex *v0 ) if (ctx->Texture._EnabledUnits == 0 && NEED_SECONDARY_COLOR(ctx) - && !ctx->FragmentProgram._Enabled) { + && !ctx->FragmentProgram._Current) { swrast->SpecPoint = swrast->Point; swrast->Point = _swrast_add_spec_terms_point; } @@ -505,9 +499,54 @@ _swrast_update_texture_samplers(GLcontext *ctx) for (u = 0; u < ctx->Const.MaxTextureImageUnits; u++) { const struct gl_texture_object *tObj = ctx->Texture.Unit[u]._Current; - if (tObj) - swrast->TextureSample[u] = - _swrast_choose_texture_sample_func(ctx, tObj); + /* Note: If tObj is NULL, the sample function will be a simple + * function that just returns opaque black (0,0,0,1). + */ + swrast->TextureSample[u] = _swrast_choose_texture_sample_func(ctx, tObj); + } +} + + +/** + * Update the swrast->_FragmentAttribs field. + */ +static void +_swrast_update_fragment_attribs(GLcontext *ctx) +{ + SWcontext *swrast = SWRAST_CONTEXT(ctx); + + if (ctx->FragmentProgram._Current) { + swrast->_FragmentAttribs + = ctx->FragmentProgram._Current->Base.InputsRead; + } + else { + GLuint u; + swrast->_FragmentAttribs = 0x0; + + if (ctx->Depth.Test) + swrast->_FragmentAttribs |= FRAG_BIT_WPOS; + if (NEED_SECONDARY_COLOR(ctx)) + swrast->_FragmentAttribs |= FRAG_BIT_COL1; + if (swrast->_FogEnabled) + swrast->_FragmentAttribs |= FRAG_BIT_FOGC; + + for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { + if (ctx->Texture.Unit[u]._ReallyEnabled) { + swrast->_FragmentAttribs |= FRAG_BIT_TEX(u); + } + } + } + + /* Find lowest, highest bit set in _FragmentAttribs */ + { + GLuint bits = swrast->_FragmentAttribs; + GLuint i = 0;; + while (bits) { + i++; + bits = bits >> 1; + } + swrast->_MaxFragmentAttrib = i; + swrast->_MinFragmentAttrib = FRAG_ATTRIB_TEX0; /* XXX temporary */ } } @@ -552,6 +591,12 @@ _swrast_validate_derived( GLcontext *ctx ) if (swrast->NewState & _SWRAST_NEW_RASTERMASK) _swrast_update_rasterflags( ctx ); + if (swrast->NewState & (_NEW_DEPTH | + _NEW_FOG | + _NEW_PROGRAM | + _NEW_TEXTURE)) + _swrast_update_fragment_attribs(ctx); + swrast->NewState = 0; swrast->StateChanges = 0; swrast->InvalidateState = _swrast_invalidate_state; @@ -709,7 +754,6 @@ _swrast_CreateContext( GLcontext *ctx ) /* init point span buffer */ swrast->PointSpan.primitive = GL_POINT; - swrast->PointSpan.start = 0; swrast->PointSpan.end = 0; swrast->PointSpan.facing = 0; swrast->PointSpan.array = swrast->SpanArrays; @@ -812,8 +856,10 @@ _swrast_print_vertex( GLcontext *ctx, const SWvertex *v ) for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) if (ctx->Texture.Unit[i]._ReallyEnabled) _mesa_debug(ctx, "texcoord[%d] %f %f %f %f\n", i, - v->texcoord[i][0], v->texcoord[i][1], - v->texcoord[i][2], v->texcoord[i][3]); + v->attrib[FRAG_ATTRIB_TEX0 + i][0], + v->attrib[FRAG_ATTRIB_TEX0 + i][1], + v->attrib[FRAG_ATTRIB_TEX0 + i][2], + v->attrib[FRAG_ATTRIB_TEX0 + i][3]); #if CHAN_TYPE == GL_FLOAT _mesa_debug(ctx, "color %f %f %f %f\n", |