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mesa: Skip updating texgen when not doing fixed function.

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Between the previous commit and this one, improves GLBenchmark 2.1
offscreen performance by 0.48% +/- 0.24% (n=22, throttling outliers
removed).

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Eric Anholt 2013-01-08 11:09:49 -08:00
parent 078727d41c
commit 1ec1b577f7
1 changed files with 39 additions and 31 deletions
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70
src/mesa/main/texstate.c
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@ -480,6 +480,43 @@ update_tex_combine(struct gl_context *ctx, struct gl_texture_unit *texUnit)
}
}
static void
update_texgen(struct gl_context *ctx)
{
GLuint unit;
/* Setup texgen for those texture coordinate sets that are in use */
for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
texUnit->_GenFlags = 0x0;
if (!(ctx->Texture._EnabledCoordUnits & (1 << unit)))
continue;
if (texUnit->TexGenEnabled) {
if (texUnit->TexGenEnabled & S_BIT) {
texUnit->_GenFlags |= texUnit->GenS._ModeBit;
}
if (texUnit->TexGenEnabled & T_BIT) {
texUnit->_GenFlags |= texUnit->GenT._ModeBit;
}
if (texUnit->TexGenEnabled & R_BIT) {
texUnit->_GenFlags |= texUnit->GenR._ModeBit;
}
if (texUnit->TexGenEnabled & Q_BIT) {
texUnit->_GenFlags |= texUnit->GenQ._ModeBit;
}
ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit);
ctx->Texture._GenFlags |= texUnit->_GenFlags;
}
ASSERT(unit < Elements(ctx->TextureMatrixStack));
if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY)
ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit);
}
}
/**
* \note This routine refers to derived texture matrix values to
@ -633,37 +670,8 @@ update_texture_state( struct gl_context *ctx )
ctx->Texture._EnabledCoordUnits = enabledFragUnits;
}
/* Setup texgen for those texture coordinate sets that are in use */
for (unit = 0; unit < ctx->Const.MaxTextureCoordUnits; unit++) {
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
texUnit->_GenFlags = 0x0;
if (!(ctx->Texture._EnabledCoordUnits & (1 << unit)))
continue;
if (texUnit->TexGenEnabled) {
if (texUnit->TexGenEnabled & S_BIT) {
texUnit->_GenFlags |= texUnit->GenS._ModeBit;
}
if (texUnit->TexGenEnabled & T_BIT) {
texUnit->_GenFlags |= texUnit->GenT._ModeBit;
}
if (texUnit->TexGenEnabled & R_BIT) {
texUnit->_GenFlags |= texUnit->GenR._ModeBit;
}
if (texUnit->TexGenEnabled & Q_BIT) {
texUnit->_GenFlags |= texUnit->GenQ._ModeBit;
}
ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit);
ctx->Texture._GenFlags |= texUnit->_GenFlags;
}
ASSERT(unit < Elements(ctx->TextureMatrixStack));
if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY)
ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit);
}
if (!fprog || !vprog)
update_texgen(ctx);
}