Mesa (master): mesa: fix dstRowDiff computation in RGTC texstore functions
Marek Olšák
mareko at kemper.freedesktop.org
Fri Apr 8 02:39:41 UTC 2011
Module: Mesa
Branch: master
Commit: 6eff8479af1a137d81d7bffc0c55a39910c28ce9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=6eff8479af1a137d81d7bffc0c55a39910c28ce9
Author: Marek Olšák <maraeo at gmail.com>
Date: Wed Apr 6 01:23:51 2011 +0200
mesa: fix dstRowDiff computation in RGTC texstore functions
Copied from libtxc_dxtn, this fixes NPOT RGTC1 textures with r300g.
I also did the same for RGTC2.
---
src/mesa/main/texcompress_rgtc.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/mesa/main/texcompress_rgtc.c b/src/mesa/main/texcompress_rgtc.c
index c50df19..d9de9be 100644
--- a/src/mesa/main/texcompress_rgtc.c
+++ b/src/mesa/main/texcompress_rgtc.c
@@ -121,7 +121,7 @@ _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS)
texWidth, (GLubyte *) dstAddr);
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
for (j = 0; j < srcHeight; j+=4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
@@ -176,7 +176,7 @@ _mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS)
texWidth, (GLubyte *) dstAddr);
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 2) ? dstRowStride - (((srcWidth + 3) & ~3) * 2) : 0;
for (j = 0; j < srcHeight; j+=4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
@@ -232,7 +232,7 @@ _mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS)
texWidth, (GLubyte *) dstAddr);
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
for (j = 0; j < srcHeight; j+=4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
@@ -294,7 +294,7 @@ _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS)
texWidth, (GLubyte *) dstAddr);
blkaddr = dst;
- dstRowDiff = dstRowStride >= (srcWidth * 8) ? dstRowStride - (((srcWidth + 7) & ~7) * 8) : 0;
+ dstRowDiff = dstRowStride >= (srcWidth * 4) ? dstRowStride - (((srcWidth + 3) & ~3) * 4) : 0;
for (j = 0; j < srcHeight; j += 4) {
if (srcHeight > j + 3) numypixels = 4;
else numypixels = srcHeight - j;
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