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authorMichel Dänzer <daenzer@vmware.com>2009-08-27 09:52:11 +0200
committerMichel Dänzer <daenzer@vmware.com>2009-08-27 09:52:11 +0200
commit066c90e8f5b93c80195dc43486ad3efa083a1f3a (patch)
tree5e223c7fbeb22ba2c0e5119673109e21cdefa048
parent174b61bb786a841cebd354e23b4b0caa85b541aa (diff)
KMS: Don't use a blit for UploadToScreen if the pixmap BO will be idle anyway.
Direct CPU writes should be at least as fast in that case.
-rw-r--r--src/radeon_exa_funcs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/radeon_exa_funcs.c b/src/radeon_exa_funcs.c
index d95adb5..58cd527 100644
--- a/src/radeon_exa_funcs.c
+++ b/src/radeon_exa_funcs.c
@@ -455,6 +455,7 @@ RADEONUploadToScreenCS(PixmapPtr pDst, int x, int y, int w, int h,
struct radeon_bo *scratch;
unsigned size;
uint32_t datatype = 0;
+ uint32_t dst_domain;
uint32_t dst_pitch_offset;
unsigned bpp = pDst->drawable.bitsPerPixel;
uint32_t scratch_pitch = (w * bpp / 8 + 63) & ~63;
@@ -466,6 +467,11 @@ RADEONUploadToScreenCS(PixmapPtr pDst, int x, int y, int w, int h,
driver_priv = exaGetPixmapDriverPrivate(pDst);
+ /* If we know the BO won't be busy, don't bother */
+ if (driver_priv->bo->cref == 1 &&
+ !radeon_bo_is_busy(driver_priv->bo, &dst_domain))
+ return FALSE;
+
size = scratch_pitch * h;
scratch = radeon_bo_open(info->bufmgr, 0, size, 0, RADEON_GEM_DOMAIN_GTT, 0);
if (scratch == NULL) {