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vc4: Skip re-emitting the shader_rec if it's unchanged.

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It's a bunch of work for us to emit it (and its uniforms), more work for
the kernel to validate it, and additional work for the CLE to read
it. Improves es2gears framerate by about 50%.

Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt
2015-07-28 11:00:58 -07:00
parent aefec4fa22
commit 2e04492a14
5 changed files with 158 additions and 43 deletions
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8
src/gallium/drivers/vc4/vc4_resource.c
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@@ -102,6 +102,12 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
vc4_resource_bo_alloc(rsc);
/* If it might be bound as one of our vertex buffers, make
* sure we re-emit vertex buffer state.
*/
if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
vc4->dirty |= VC4_DIRTY_VTXBUF;
} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
if (vc4_cl_references_bo(pctx, rsc->bo)) {
if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
@@ -110,6 +116,8 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
prsc->height0 == box->height &&
prsc->depth0 == box->depth) {
vc4_resource_bo_alloc(rsc);
if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
vc4->dirty |= VC4_DIRTY_VTXBUF;
} else {
vc4_flush(pctx);
}