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-rw-r--r--src/mesa/drivers/dri/i965/brw_vs_surface_state.c7
1 files changed, 5 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 5dac6329693..3bc9840a971 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;
}