summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorEric Anholt <eric@anholt.net>2009-11-12 14:57:30 -0800
committerEric Anholt <eric@anholt.net>2009-11-13 13:18:57 -0800
commitded0ec1ea5db8e08b0bec8ac0d9d30f98e360003 (patch)
tree545936efee1d8fc5dcbbfed3ae96109e7a30d745 /src
parent8e8586e62671e8337c08b086bf7f3c54cc46191d (diff)
i965: Use bo_map instead of subdata to upload the bits of constant buffer.
Saves CPU time, resulting in a 2.5% FPS win on ETQW.
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vs_surface_state.c7
-rw-r--r--src/mesa/drivers/dri/intel/intel_context.h21
2 files changed, 26 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
index 5dac632969..3bc9840a97 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -68,10 +68,13 @@ brw_vs_update_constant_buffer(struct brw_context *brw)
*/
_mesa_load_state_parameters(&brw->intel.ctx, vp->program.Base.Parameters);
+ intel_bo_map_gtt_preferred(intel, const_buffer, GL_TRUE);
for (i = 0; i < params->NumParameters; i++) {
- dri_bo_subdata(const_buffer, i * 4 * sizeof(float), 4 * sizeof(float),
- params->ParameterValues[i]);
+ memcpy(const_buffer->virtual + i * 4 * sizeof(float),
+ params->ParameterValues[i],
+ 4 * sizeof(float));
}
+ intel_bo_unmap_gtt_preferred(intel, const_buffer);
return const_buffer;
}
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index 84fbfc564c..8936f757a4 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -590,4 +590,25 @@ is_power_of_two(uint32_t value)
return (value & (value - 1)) == 0;
}
+static inline void
+intel_bo_map_gtt_preferred(struct intel_context *intel,
+ drm_intel_bo *bo,
+ GLboolean write)
+{
+ if (intel->intelScreen->kernel_exec_fencing)
+ drm_intel_gem_bo_map_gtt(bo);
+ else
+ drm_intel_bo_map(bo, write);
+}
+
+static inline void
+intel_bo_unmap_gtt_preferred(struct intel_context *intel,
+ drm_intel_bo *bo)
+{
+ if (intel->intelScreen->kernel_exec_fencing)
+ drm_intel_gem_bo_unmap_gtt(bo);
+ else
+ drm_intel_bo_unmap(bo);
+}
+
#endif