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authorSergii Romantsov <[email protected]>2018-08-15 15:21:47 +0300
committerKenneth Graunke <[email protected]>2018-08-15 13:15:28 -0700
commitefb28aa9705699794143b32e11f5c857db60e060 (patch)
tree622269f4e5cbd85931d2a4cce67ec854c81b2d22 /src/mesa/drivers/dri
parent98b3b6367a919990bc2832183fdcf285ffeb4b8a (diff)
i965: Emitting 3DSTATE_SO_BUFFER of 0-size.
Avoided filling of whole structure and bo-allocation if size of surface is 0. Signed-off-by: Sergii Romantsov <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/genX_state_upload.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c b/src/mesa/drivers/dri/i965/genX_state_upload.c
index ea5ad55be59..c051848985f 100644
--- a/src/mesa/drivers/dri/i965/genX_state_upload.c
+++ b/src/mesa/drivers/dri/i965/genX_state_upload.c
@@ -3787,19 +3787,20 @@ genX(upload_3dstate_so_buffers)(struct brw_context *brw)
for (int i = 0; i < 4; i++) {
struct intel_buffer_object *bufferobj =
intel_buffer_object(xfb_obj->Buffers[i]);
+ uint32_t start = xfb_obj->Offset[i];
+ uint32_t end = ALIGN(start + xfb_obj->Size[i], 4);
+ uint32_t const size = end - start;
- if (!bufferobj) {
+ if (!bufferobj || !size) {
brw_batch_emit(brw, GENX(3DSTATE_SO_BUFFER), sob) {
sob.SOBufferIndex = i;
}
continue;
}
- uint32_t start = xfb_obj->Offset[i];
assert(start % 4 == 0);
- uint32_t end = ALIGN(start + xfb_obj->Size[i], 4);
struct brw_bo *bo =
- intel_bufferobj_buffer(brw, bufferobj, start, end - start, true);
+ intel_bufferobj_buffer(brw, bufferobj, start, size, true);
assert(end <= bo->size);
brw_batch_emit(brw, GENX(3DSTATE_SO_BUFFER), sob) {