Add a FAST_PATH_X_UNIT_POSITIVE flag

[profile/ivi/pixman.git] / pixman / pixman-image.c

diff --git a/pixman/pixman-image.c b/pixman/pixman-image.c
index df5b457..9b44aa9 100644 (file)
--- 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 */