[Pixman] [PATCH 2/2] Make use of image flags in mmx and sse2 iterators

[Søren Sandmann]

From: Søren Sandmann Pedersen <ssp at redhat.com>

Now that we have the full image flags available, the SSE2 and MMX
iterators can simply check against SAMPLES_COVER_CLIP_NEAREST (which
is computed in pixman_image_composite32()) instead of comparing all
the x/y/width/height parameters.
---
 pixman/pixman-mmx.c  |   14 ++++----------
 pixman/pixman-sse2.c |   14 ++++----------
 2 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index cf3c4e4..d869c04 100644
--- a/pixman/pixman-mmx.c
+++ b/pixman/pixman-mmx.c
@@ -3656,19 +3656,13 @@ static void
 mmx_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
 {
     pixman_image_t *image = iter->image;
-    int x = iter->x;
-    int y = iter->y;
-    int width = iter->width;
-    int height = iter->height;
 
 #define FLAGS								\
-    (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM | FAST_PATH_BITS_IMAGE)
+    (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM |		\
+     FAST_PATH_BITS_IMAGE | FAST_PATH_SAMPLES_COVER_CLIP_NEAREST)
 
     if ((iter->iter_flags & ITER_NARROW)			&&
-	(iter->image_flags & FLAGS) == FLAGS			&&
-	x >= 0 && y >= 0					&&
-	x + width <= image->bits.width				&&
-	y + height <= image->bits.height)
+	(iter->image_flags & FLAGS) == FLAGS)
     {
 	const fetcher_info_t *f;
 
@@ -3679,7 +3673,7 @@ mmx_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
 		uint8_t *b = (uint8_t *)image->bits.bits;
 		int s = image->bits.rowstride * 4;
 
-		iter->bits = b + s * iter->y + x * PIXMAN_FORMAT_BPP (f->format) / 8;
+		iter->bits = b + s * iter->y + iter->x * PIXMAN_FORMAT_BPP (f->format) / 8;
 		iter->stride = s;
 
 		iter->get_scanline = f->get_scanline;
diff --git a/pixman/pixman-sse2.c b/pixman/pixman-sse2.c
index 111317d..70f8b77 100644
--- a/pixman/pixman-sse2.c
+++ b/pixman/pixman-sse2.c
@@ -5976,19 +5976,13 @@ static void
 sse2_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
 {
     pixman_image_t *image = iter->image;
-    int x = iter->x;
-    int y = iter->y;
-    int width = iter->width;
-    int height = iter->height;
 
 #define FLAGS								\
-    (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM | FAST_PATH_BITS_IMAGE)
+    (FAST_PATH_STANDARD_FLAGS | FAST_PATH_ID_TRANSFORM |		\
+     FAST_PATH_BITS_IMAGE | FAST_PATH_SAMPLES_COVER_CLIP_NEAREST)
 
     if ((iter->iter_flags & ITER_NARROW)			&&
-	(iter->image_flags & FLAGS) == FLAGS			&&
-	x >= 0 && y >= 0					&&
-	x + width <= image->bits.width				&&
-	y + height <= image->bits.height)
+	(iter->image_flags & FLAGS) == FLAGS)
     {
 	const fetcher_info_t *f;
 
@@ -5999,7 +5993,7 @@ sse2_src_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter)
 		uint8_t *b = (uint8_t *)image->bits.bits;
 		int s = image->bits.rowstride * 4;
 
-		iter->bits = b + s * iter->y + x * PIXMAN_FORMAT_BPP (f->format) / 8;
+		iter->bits = b + s * iter->y + iter->x * PIXMAN_FORMAT_BPP (f->format) / 8;
 		iter->stride = s;
 
 		iter->get_scanline = f->get_scanline;
-- 
1.7.4