diff options
Diffstat (limited to 'src/mesa/swrast/s_context.c')
-rw-r--r-- | src/mesa/swrast/s_context.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c index e113adb689..2f25edbd81 100644 --- a/src/mesa/swrast/s_context.c +++ b/src/mesa/swrast/s_context.c @@ -155,7 +155,7 @@ _swrast_update_polygon( GLcontext *ctx ) /** * Update the _PreferPixelFog field to indicate if we need to compute - * fog factors per-fragment. + * fog blend factors (from the fog coords) per-fragment. */ static void _swrast_update_fog_hint( GLcontext *ctx ) @@ -488,7 +488,7 @@ _swrast_invalidate_state( GLcontext *ctx, GLbitfield new_state ) } -static void +void _swrast_update_texture_samplers(GLcontext *ctx) { SWcontext *swrast = SWRAST_CONTEXT(ctx); @@ -505,45 +505,52 @@ _swrast_update_texture_samplers(GLcontext *ctx) /** - * Update the swrast->_FragmentAttribs field. + * Update swrast->_ActiveAttribs and swrast->_NumActiveAttribs */ static void _swrast_update_fragment_attribs(GLcontext *ctx) { SWcontext *swrast = SWRAST_CONTEXT(ctx); + GLuint attribsMask; if (ctx->FragmentProgram._Current) { - swrast->_FragmentAttribs - = ctx->FragmentProgram._Current->Base.InputsRead; + attribsMask = ctx->FragmentProgram._Current->Base.InputsRead; } else { GLuint u; - swrast->_FragmentAttribs = 0x0; + attribsMask = 0x0; +#if 0 /* not yet */ if (ctx->Depth.Test) - swrast->_FragmentAttribs |= FRAG_BIT_WPOS; + attribsMask |= FRAG_BIT_WPOS; if (NEED_SECONDARY_COLOR(ctx)) - swrast->_FragmentAttribs |= FRAG_BIT_COL1; + attribsMask |= FRAG_BIT_COL1; +#endif if (swrast->_FogEnabled) - swrast->_FragmentAttribs |= FRAG_BIT_FOGC; + attribsMask |= FRAG_BIT_FOGC; for (u = 0; u < ctx->Const.MaxTextureUnits; u++) { if (ctx->Texture.Unit[u]._ReallyEnabled) { - swrast->_FragmentAttribs |= FRAG_BIT_TEX(u); + attribsMask |= FRAG_BIT_TEX(u); } } } - /* Find lowest, highest bit set in _FragmentAttribs */ + /* don't want to interpolate these generic attribs just yet */ + /* XXX temporary */ + attribsMask &= ~(FRAG_BIT_WPOS | + FRAG_BIT_COL0 | + FRAG_BIT_COL1 | + FRAG_BIT_FOGC); + + /* Update _ActiveAttribs[] list */ { - GLuint bits = swrast->_FragmentAttribs; - GLuint i = 0;; - while (bits) { - i++; - bits = bits >> 1; + GLuint i, num = 0; + for (i = 0; i < FRAG_ATTRIB_MAX; i++) { + if (attribsMask & (1 << i)) + swrast->_ActiveAttribs[num++] = i; } - swrast->_MaxFragmentAttrib = i; - swrast->_MinFragmentAttrib = FRAG_ATTRIB_TEX0; /* XXX temporary */ + swrast->_NumActiveAttribs = num; } } @@ -617,7 +624,7 @@ _swrast_validate_derived( GLcontext *ctx ) _NEW_PROGRAM)) _swrast_update_fragment_program( ctx, swrast->NewState ); - if (swrast->NewState & _NEW_TEXTURE) + if (swrast->NewState & (_NEW_TEXTURE | _NEW_PROGRAM)) _swrast_update_texture_samplers( ctx ); if (swrast->NewState & (_NEW_TEXTURE | _NEW_PROGRAM)) @@ -912,7 +919,7 @@ _swrast_print_vertex( GLcontext *ctx, const SWvertex *v ) v->specular[0], v->specular[1], v->specular[2], v->specular[3]); #endif - _mesa_debug(ctx, "fog %f\n", v->fog); + _mesa_debug(ctx, "fog %f\n", v->attrib[FRAG_ATTRIB_FOGC][0]); _mesa_debug(ctx, "index %d\n", v->index); _mesa_debug(ctx, "pointsize %f\n", v->pointSize); _mesa_debug(ctx, "\n"); |