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i915: suppress repeated sampler state emission

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-11-25 22:27:37 +00:00
parent 87641cffd9
commit 0b0cad38c5
2 changed files with 11 additions and 0 deletions
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1
src/mesa/drivers/dri/i915/i915_context.h
View file

@ -262,6 +262,7 @@ struct i915_context
struct i915_hw_state state;
uint32_t last_draw_offset;
GLuint last_sampler;
};

10
src/mesa/drivers/dri/i915/i915_vtbl.c
View file

@ -426,6 +426,7 @@ i915_emit_state(struct intel_context *intel)
*/
if (dirty & I915_UPLOAD_TEX_ALL) {
int nr = 0;
GLuint unwind;
for (i = 0; i < I915_TEX_UNITS; i++)
if (dirty & I915_UPLOAD_TEX(i))
@ -445,6 +446,7 @@ i915_emit_state(struct intel_context *intel)
}
ADVANCE_BATCH();
unwind = intel->batch.used;
BEGIN_BATCH(2 + nr * 3);
OUT_BATCH(_3DSTATE_SAMPLER_STATE | (3 * nr));
OUT_BATCH((dirty & I915_UPLOAD_TEX_ALL) >> I915_UPLOAD_TEX_0_SHIFT);
@ -455,6 +457,13 @@ i915_emit_state(struct intel_context *intel)
OUT_BATCH(state->Tex[i][I915_TEXREG_SS4]);
}
ADVANCE_BATCH();
if (i915->last_sampler &&
memcmp(intel->batch.map + i915->last_sampler,
intel->batch.map + unwind,
(2 + nr*3)*sizeof(int)) == 0)
intel->batch.used = unwind;
else
i915->last_sampler = unwind;
}
if (dirty & I915_UPLOAD_CONSTANTS) {
@ -658,6 +667,7 @@ i915_new_batch(struct intel_context *intel)
*/
i915->state.emitted = 0;
i915->last_draw_offset = 0;
i915->last_sampler = 0;
}
static void