diff options
Diffstat (limited to 'src/radeon_exa.c')
| -rw-r--r-- | src/radeon_exa.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/radeon_exa.c b/src/radeon_exa.c index 503d569b..9c40da79 100644 --- a/src/radeon_exa.c +++ b/src/radeon_exa.c @@ -174,6 +174,18 @@ Bool RADEONGetPixmapOffsetPitch(PixmapPtr pPix, uint32_t *pitch_offset) return RADEONGetOffsetPitch(pPix, bpp, pitch_offset, offset, pitch); } +/** + * Returns whether the provided transform is affine. + * + * transform may be null. + */ +Bool radeon_transform_is_affine(PictTransformPtr t) +{ + if (t == NULL) + return TRUE; + return t->matrix[2][0] == 0 && t->matrix[2][1] == 0; +} + #if X_BYTE_ORDER == X_BIG_ENDIAN static unsigned long swapper_surfaces[6]; |