diff options
Diffstat (limited to 'src/mesa/swrast')
| -rw-r--r-- | src/mesa/swrast/s_copypix.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c index bbe1081860d..218a3b5590b 100644 --- a/src/mesa/swrast/s_copypix.c +++ b/src/mesa/swrast/s_copypix.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.3 + * Version: 7.1 * * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * @@ -71,13 +71,20 @@ regions_overlap(GLint srcx, GLint srcy, } else { /* add one pixel of slop when zooming, just to be safe */ - if ((srcx > dstx + (width * zoomX) + 1) || (srcx + width + 1 < dstx)) { + if (srcx > (dstx + ((zoomX > 0.0F) ? (width * zoomX + 1.0F) : 0.0F))) { + /* src is completely right of dest */ + return GL_FALSE; + } + else if (srcx + width + 1.0F < dstx + ((zoomX > 0.0F) ? 0.0F : (width * zoomX))) { + /* src is completely left of dest */ return GL_FALSE; } else if ((srcy < dsty) && (srcy + height < dsty + (height * zoomY))) { + /* src is completely below dest */ return GL_FALSE; } else if ((srcy > dsty) && (srcy + height > dsty + (height * zoomY))) { + /* src is completely above dest */ return GL_FALSE; } else { |