From 2b624634dda23d3b94045fb07aea558df39b48ff Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 15 Apr 2011 19:55:38 -0700 Subject: [PATCH] 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 --- src/mesa/swrast/s_readpix.c | 6 +++--- 1 file 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); } -- 2.11.0