xf86-video-ati: Branch 'master'
Alex Deucher
agd5f at kemper.freedesktop.org
Thu Apr 3 11:44:40 PDT 2008
src/radeon_exa_render.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)
New commits:
commit c40a7aa3989576a8144213e2f31b892d21df8686
Author: Owen W. Taylor <otaylor at fishsoup.net>
Date: Thu Apr 3 14:43:55 2008 -0400
R3xx/R5xx: Fix pitch and clamp mode for repeating textures
- We can always use TXPITCH on a R300 even when repeating,
(previous check for pitch matching width was also wrong)
- Fix clamp mode for repeating textures to be WRAP
diff --git a/src/radeon_exa_render.c b/src/radeon_exa_render.c
index 9496bb6..4e5ab81 100644
--- a/src/radeon_exa_render.c
+++ b/src/radeon_exa_render.c
@@ -870,6 +870,7 @@ static Bool FUNC_NAME(R300TextureSetup)(PicturePtr pPict, PixmapPtr pPix,
if ((txpitch & 0x1f) != 0)
RADEON_FALLBACK(("Bad texture pitch 0x%x\n", (int)txpitch));
+ /* TXPITCH = pixels (texels) per line - 1 */
pixel_shift = pPix->drawable.bitsPerPixel >> 4;
txpitch >>= pixel_shift;
txpitch -= 1;
@@ -894,20 +895,21 @@ static Bool FUNC_NAME(R300TextureSetup)(PicturePtr pPict, PixmapPtr pPix,
if (IS_R500_3D && ((h - 1) & 0x800))
txpitch |= R500_TXHEIGHT_11;
- if (pPict->repeat) {
- if ((h != 1) &&
- (((w * pPix->drawable.bitsPerPixel / 8 + 31) & ~31) != txpitch))
- RADEON_FALLBACK(("Width %d and pitch %u not compatible for repeat\n",
- w, (unsigned)txpitch));
- } else
- txformat0 |= R300_TXPITCH_EN;
-
+ /* Use TXPITCH instead of TXWIDTH for address computations: we could
+ * omit this if there is no padding, but there is no apparent advantage
+ * in doing so.
+ */
+ txformat0 |= R300_TXPITCH_EN;
info->texW[unit] = w;
info->texH[unit] = h;
- txfilter = (R300_TX_CLAMP_S(R300_TX_CLAMP_CLAMP_LAST) |
- R300_TX_CLAMP_T(R300_TX_CLAMP_CLAMP_LAST));
+ if (pPict->repeat)
+ txfilter = (R300_TX_CLAMP_S(R300_TX_CLAMP_WRAP) |
+ R300_TX_CLAMP_T(R300_TX_CLAMP_WRAP));
+ else
+ txfilter = (R300_TX_CLAMP_S(R300_TX_CLAMP_CLAMP_LAST) |
+ R300_TX_CLAMP_T(R300_TX_CLAMP_CLAMP_LAST));
txfilter |= (unit << R300_TX_ID_SHIFT);
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