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i965/gen7: Fix segfault in transform feedback to DYNAMIC_DRAW buffers. 

Fixes piglit EXT_transform_feedback/buffer-usage.
This commit is contained in:
Eric Anholt 2012-01-02 14:03:59 -08:00
parent 2c623c2be5
commit ba6f4c9ee2
1 changed files with 3 additions and 2 deletions
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5
src/mesa/drivers/dri/i965/gen7_sol_state.c
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@ -53,7 +53,8 @@ upload_3dstate_so_buffers(struct brw_context *brw)
* gl_transform_feedback_object.
*/
for (i = 0; i < 4; i++) {
struct gl_buffer_object *bufferobj = xfb_obj->Buffers[i];
struct intel_buffer_object *bufferobj =
intel_buffer_object(xfb_obj->Buffers[i]);
drm_intel_bo *bo;
uint32_t start, end;
uint32_t stride;
@ -72,7 +73,7 @@ upload_3dstate_so_buffers(struct brw_context *brw)
continue;
}
bo = intel_buffer_object(bufferobj)->buffer;
bo = intel_bufferobj_buffer(intel, bufferobj, INTEL_WRITE_PART);
stride = linked_xfb_info->BufferStride[i] * 4;
start = xfb_obj->Offset[i];