diff options
| author | Søren Sandmann Pedersen <ssp@redhat.com> | 2010-03-17 10:35:34 -0400 |
|---|---|---|
| committer | Søren Sandmann Pedersen <ssp@redhat.com> | 2010-03-17 11:03:05 -0400 |
| commit | 9cd1051523493e0926b146f05cdde34158391602 (patch) | |
| tree | 8e5a820938e844542b664e861db7fca6c996e67a | |
| parent | a5b51bb03c5c1258d7558efa13eca6c570e34ce6 (diff) | |
Add a FAST_PATH_X_UNIT_POSITIVE flag
This is the common case for a lot of transformed images. If the unit
were negative, the transformation would be a reflection which is
fairly rare.
| -rw-r--r-- | pixman/pixman-image.c | 20 | ||||
| -rw-r--r-- | pixman/pixman-private.h | 1 |
2 files changed, 14 insertions, 7 deletions
diff --git a/pixman/pixman-image.c b/pixman/pixman-image.c index df5b4574..9b44aa9d 100644 --- a/pixman/pixman-image.c +++ b/pixman/pixman-image.c @@ -301,15 +301,21 @@ compute_image_info (pixman_image_t *image) /* Transform */ if (!image->common.transform) { - flags |= FAST_PATH_ID_TRANSFORM; + flags |= (FAST_PATH_ID_TRANSFORM | FAST_PATH_X_UNIT_POSITIVE); } - else if (image->common.transform->matrix[0][1] == 0 && - image->common.transform->matrix[1][0] == 0 && - image->common.transform->matrix[2][0] == 0 && - image->common.transform->matrix[2][1] == 0 && - image->common.transform->matrix[2][2] == pixman_fixed_1) + else { - flags |= FAST_PATH_SCALE_TRANSFORM; + if (image->common.transform->matrix[0][1] == 0 && + image->common.transform->matrix[1][0] == 0 && + image->common.transform->matrix[2][0] == 0 && + image->common.transform->matrix[2][1] == 0 && + image->common.transform->matrix[2][2] == pixman_fixed_1) + { + flags |= FAST_PATH_SCALE_TRANSFORM; + } + + if (image->common.transform->matrix[0][0] > 0) + flags |= FAST_PATH_X_UNIT_POSITIVE; } /* Alpha map */ diff --git a/pixman/pixman-private.h b/pixman/pixman-private.h index 0cf91134..d5767af4 100644 --- a/pixman/pixman-private.h +++ b/pixman/pixman-private.h @@ -582,6 +582,7 @@ _pixman_choose_implementation (void); #define FAST_PATH_NO_NONE_REPEAT (1 << 15) #define FAST_PATH_SAMPLES_COVER_CLIP (1 << 16) #define FAST_PATH_16BIT_SAFE (1 << 17) +#define FAST_PATH_X_UNIT_POSITIVE (1 << 18) #define _FAST_PATH_STANDARD_FLAGS \ (FAST_PATH_ID_TRANSFORM | \ |