From 0b0cad38c57fbe59710cb4058866b2e68f6d471a Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 25 Nov 2010 22:27:37 +0000 Subject: [PATCH] i915: suppress repeated sampler state emission Signed-off-by: Chris Wilson --- src/mesa/drivers/dri/i915/i915_context.h | 1 + src/mesa/drivers/dri/i915/i915_vtbl.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/src/mesa/drivers/dri/i915/i915_context.h b/src/mesa/drivers/dri/i915/i915_context.h index 2c80ded075b..d0245218f01 100644 --- a/src/mesa/drivers/dri/i915/i915_context.h +++ b/src/mesa/drivers/dri/i915/i915_context.h @@ -262,6 +262,7 @@ struct i915_context struct i915_hw_state state; uint32_t last_draw_offset; + GLuint last_sampler; }; diff --git a/src/mesa/drivers/dri/i915/i915_vtbl.c b/src/mesa/drivers/dri/i915/i915_vtbl.c index 394935c96cc..14c409bfc6c 100644 --- a/src/mesa/drivers/dri/i915/i915_vtbl.c +++ b/src/mesa/drivers/dri/i915/i915_vtbl.c @@ -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 -- 2.11.0