diff options
Diffstat (limited to 'src/mesa/swrast/s_readpix.c')
| -rw-r--r-- | src/mesa/swrast/s_readpix.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c index f925e791162..562d8718463 100644 --- a/src/mesa/swrast/s_readpix.c +++ b/src/mesa/swrast/s_readpix.c @@ -1,4 +1,4 @@ -/* $Id: s_readpix.c,v 1.15 2002/07/09 01:22:52 brianp Exp $ */ +/* $Id: s_readpix.c,v 1.16 2002/09/21 17:34:56 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -279,8 +279,15 @@ read_fast_rgba_pixels( GLcontext *ctx, if (0) { #endif GLchan *dest = (GLchan *) pixels - + (skipRows * rowLength + skipPixels) * 4; + + (skipRows * rowLength + skipPixels) * 4; GLint row; + + if (packing->Invert) { + /* start at top and go down */ + dest += (readHeight - 1) * rowLength * 4; + rowLength = -rowLength; + } + for (row=0; row<readHeight; row++) { (*swrast->Driver.ReadRGBASpan)(ctx, readWidth, srcX, srcY, (GLchan (*)[4]) dest); |