Module: Mesa Branch: master Commit: 7d2d450ea6d8082db14cd3f86c6c25442bf771c5 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7d2d450ea6d8082db14cd3f86c6c25442bf771c5
Author: Christoph Bumiller <christoph.bumil...@speed.at> Date: Sat Jan 19 20:53:22 2013 +0100 nouveau: fix undefined behaviour when testing sample_count NOTE: This is a candidate for the 9.0 branch. --- src/gallium/drivers/nv30/nv30_screen.c | 2 ++ src/gallium/drivers/nv50/nv50_screen.c | 2 ++ src/gallium/drivers/nvc0/nvc0_screen.c | 2 ++ 3 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/gallium/drivers/nv30/nv30_screen.c b/src/gallium/drivers/nv30/nv30_screen.c index 06f7c42..f3faf8a 100644 --- a/src/gallium/drivers/nv30/nv30_screen.c +++ b/src/gallium/drivers/nv30/nv30_screen.c @@ -244,6 +244,8 @@ nv30_screen_is_format_supported(struct pipe_screen *pscreen, unsigned sample_count, unsigned bindings) { + if (sample_count > 4) + return FALSE; if (!(0x00000017 & (1 << sample_count))) return FALSE; diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c index 1155c93..b1a9c4d 100644 --- a/src/gallium/drivers/nv50/nv50_screen.c +++ b/src/gallium/drivers/nv50/nv50_screen.c @@ -50,6 +50,8 @@ nv50_screen_is_format_supported(struct pipe_screen *pscreen, unsigned sample_count, unsigned bindings) { + if (sample_count > 8) + return FALSE; if (!(0x117 & (1 << sample_count))) /* 0, 1, 2, 4 or 8 */ return FALSE; if (sample_count == 8 && util_format_get_blocksizebits(format) >= 128) diff --git a/src/gallium/drivers/nvc0/nvc0_screen.c b/src/gallium/drivers/nvc0/nvc0_screen.c index de0513b..46bb797 100644 --- a/src/gallium/drivers/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nvc0/nvc0_screen.c @@ -39,6 +39,8 @@ nvc0_screen_is_format_supported(struct pipe_screen *pscreen, unsigned sample_count, unsigned bindings) { + if (sample_count > 8) + return FALSE; if (!(0x117 & (1 << sample_count))) /* 0, 1, 2, 4 or 8 */ return FALSE; _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit