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-rw-r--r--src/gallium/state_trackers/nine/device9.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/src/gallium/state_trackers/nine/device9.c b/src/gallium/state_trackers/nine/device9.c
index 78e148bca77..1430ca57c7c 100644
--- a/src/gallium/state_trackers/nine/device9.c
+++ b/src/gallium/state_trackers/nine/device9.c
@@ -1756,12 +1756,21 @@ NineDevice9_Clear( struct NineDevice9 *This,
rt_mask |= 1 << i;
}
+ /* fast path, clears everything at once */
if (!Count &&
(!(bufs & PIPE_CLEAR_COLOR) || (rt_mask == This->state.rt_mask)) &&
- rect.x1 == 0 && rect.x2 >= This->state.fb.width &&
- rect.y1 == 0 && rect.y2 >= This->state.fb.height) {
- /* fast path, clears everything at once */
- DBG("fast path\n");
+ rect.x1 == 0 && rect.y1 == 0 &&
+ /* Case we clear only render target. Check clear region vs rt. */
+ ((!(bufs & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) &&
+ rect.x2 >= This->state.fb.width &&
+ rect.y2 >= This->state.fb.height) ||
+ /* Case we clear depth buffer (and eventually rt too).
+ * depth buffer size is always >= rt size. Compare to clear region */
+ ((bufs & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) &&
+ This->state.fb.zsbuf != NULL &&
+ rect.x2 >= zsbuf_surf->desc.Width &&
+ rect.y2 >= zsbuf_surf->desc.Height))) {
+ DBG("Clear fast path\n");
pipe->clear(pipe, bufs, &rgba, Z, Stencil);
return D3D_OK;
}