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| author | Marek Olšák <maraeo@gmail.com> | 2011-12-11 16:18:36 +0100 |
|---|---|---|
| committer | Marek Olšák <maraeo@gmail.com> | 2011-12-12 08:04:51 +0100 |
| commit | fc52534f012837a39c03a764eb611d460210514a (patch) | |
| tree | 43ce8892cc63d6cdc010094402e12390d8699a9a /include | |
| parent | 4298c88f656c191f3daca0c341850dd8c23f5f92 (diff) | |
mesa: fix possible precision issues in pack/unpack/fetch functions
GLfloat doesn't have enough precision to exactly represent 0xffffff
and 0xffffffff. (and a reciprocal of those, if I am not mistaken)
If -ffast-math is enabled, using GLfloat causes assertion failures in:
- fbo-blit-d24s8
- fbo-depth-sample-compare
- fbo-readpixels-depth-formats
- glean/depthStencil
For example:
fbo-depth-sample-compare: main/format_unpack.c:1769:
unpack_float_z_Z24_X8: Assertion `dst[i] <= 1.0F' failed.
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions