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authorEric Anholt <[email protected]>2011-04-15 19:55:38 -0700
committerEric Anholt <[email protected]>2011-04-18 11:19:54 -0700
commit2b624634dda23d3b94045fb07aea558df39b48ff (patch)
treebee3e9d733ab00b407e6f709cf6315bb1e4512b9 /src/mesa
parentf0471d904cf5c03ecf2528268a116e4f147cd3c1 (diff)
swrast: Don't try to adjust_colors for <8bpc when handling R16, RG1616.
The GL_RED and GL_RG were tricking this code into executing, but it's totally unprepared for a 16-bit channel and just rescaled the values down to 0. We don't have anything with <8bit channels alongside >8bit channels, so disabling it should be safe. Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/swrast/s_readpix.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index cca7ec00802..5604c2e937e 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -344,9 +344,9 @@ read_rgba_pixels( struct gl_context *ctx,
_swrast_read_rgba_span(ctx, rb, width, x, y, GL_FLOAT, rgba);
/* apply fudge factor for shallow color buffers */
- if (fb->Visual.redBits < 8 ||
- fb->Visual.greenBits < 8 ||
- fb->Visual.blueBits < 8) {
+ if ((fb->Visual.redBits < 8 && fb->Visual.redBits != 0) ||
+ (fb->Visual.greenBits < 8 && fb->Visual.greenBits != 0) ||
+ (fb->Visual.blueBits < 8 && fb->Visual.blueBits != 0)) {
adjust_colors(fb, width, rgba);
}