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intel: GetBuffer fix

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After copy buffer on preGEN6, it is necessary to wait for the blit to
complete before returning data to the user.

This should fix the piglit test: copy_buffer_coherency (pre-GEN6).

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Ben Widawsky 2011-08-07 17:04:04 -07:00
parent df7859be6b
commit fa351bd2e0
1 changed files with 6 additions and 1 deletions
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7
src/mesa/drivers/dri/intel/intel_buffer_objects.c
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@ -282,12 +282,17 @@ intel_bufferobj_get_subdata(struct gl_context * ctx,
GLvoid * data, struct gl_buffer_object *obj) GLvoid * data, struct gl_buffer_object *obj)
{ {
struct intel_buffer_object *intel_obj = intel_buffer_object(obj); struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
struct intel_context *intel = intel_context(ctx);
assert(intel_obj); assert(intel_obj);
if (intel_obj->sys_buffer) if (intel_obj->sys_buffer)
memcpy(data, (char *)intel_obj->sys_buffer + offset, size); memcpy(data, (char *)intel_obj->sys_buffer + offset, size);
else else {
if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) {
intel_batchbuffer_flush(intel);
}
drm_intel_bo_get_subdata(intel_obj->buffer, offset, size, data); drm_intel_bo_get_subdata(intel_obj->buffer, offset, size, data);
}
} }