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i915: separate the fog term from the specular color term.

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Previously fog parameter and specular color are packed into the
same dword. Note specular color should be packed in BGRA for device,
so if fog parameter and specular color all are present, fog parameter
will dirty the alpha term of specular color. This fixes rendering
issue when playing 'Yo Frankie' on 915/945.
This commit is contained in:
Xiang, Haihao
2008-12-24 09:26:46 +08:00
parent 15b2e0d138
commit 129b6bc4e3
1 changed files with 3 additions and 19 deletions
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18
src/mesa/drivers/dri/i915/i915_fragprog.c
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@@ -1105,30 +1105,14 @@ i915ValidateFragmentProgram(struct i915_context *i915)
EMIT_ATTR(_TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, S4_VFMT_COLOR, 4);
}
if ((inputsRead & (FRAG_BIT_COL1 | FRAG_BIT_FOGC)) ||
i915->vertex_fog != I915_FOG_NONE) {
if (inputsRead & FRAG_BIT_COL1) {
intel->specoffset = offset / 4;
EMIT_ATTR(_TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, S4_VFMT_SPEC_FOG, 3);
}
else
EMIT_PAD(3);
if ((inputsRead & FRAG_BIT_FOGC) || i915->vertex_fog != I915_FOG_NONE)
EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1UB_1F, S4_VFMT_SPEC_FOG, 1);
else
EMIT_PAD(1);
EMIT_ATTR(_TNL_ATTRIB_COLOR1, EMIT_4UB_4F_BGRA, S4_VFMT_SPEC_FOG, 4);
}
/* XXX this was disabled, but enabling this code helped fix the Glean
* tfragprog1 fog tests.
*/
#if 1
if ((inputsRead & FRAG_BIT_FOGC) || i915->vertex_fog != I915_FOG_NONE) {
EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1F, S4_VFMT_FOG_PARAM, 4);
}
#endif
for (i = 0; i < p->ctx->Const.MaxTextureCoordUnits; i++) {
if (inputsRead & FRAG_BIT_TEX(i)) {