I'll need this code for header and tail alignment loops in MMX, so I
might as well implement a fast path here.
---
pixman/pixman-fast-path.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 44 insertions(+), 0 deletions(-)
diff --git a/pixman/pixman-fast-path.c b/pixman/pixman-fast-path.c
index 0a134ed..e79b069 100644
--- a/pixman/pixman-fast-path.c
+++ b/pixman/pixman-fast-path.c
@@ -810,6 +810,48 @@ fast_composite_add_8_8 (pixman_implementation_t *imp,
}
static void
+fast_composite_add_0565_0565 (pixman_implementation_t *imp,
+ pixman_composite_info_t *info)
+{
+ PIXMAN_COMPOSITE_ARGS (info);
+ uint16_t *dst_line, *dst;
+ uint32_t d;
+ uint16_t *src_line, *src;
+ uint32_t s;
+ int dst_stride, src_stride;
+ int32_t w;
+
+ PIXMAN_IMAGE_GET_LINE (src_image, src_x, src_y, uint16_t, src_stride,
src_line, 1);
+ PIXMAN_IMAGE_GET_LINE (dest_image, dest_x, dest_y, uint16_t, dst_stride,
dst_line, 1);
+
+ while (height--)
+ {
+ dst = dst_line;
+ dst_line += dst_stride;
+ src = src_line;
+ src_line += src_stride;
+ w = width;
+
+ while (w--)
+ {
+ s = *src++;
+ if (s)
+ {
+ d = *dst;
+ s = CONVERT_0565_TO_8888 (s);
+ if (d)
+ {
+ d = CONVERT_0565_TO_8888 (d);
+ UN8x4_ADD_UN8x4 (s, d);
+ }
+ *dst = CONVERT_8888_TO_0565 (s);
+ }
+ dst++;
+ }
+ }
+}
+
+static void
fast_composite_add_8888_8888 (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
@@ -1836,6 +1878,8 @@ static const pixman_fast_path_t c_fast_paths[] =
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, null, a8b8g8r8,
fast_composite_over_8888_8888),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, null, x8b8g8r8,
fast_composite_over_8888_8888),
PIXMAN_STD_FAST_PATH (OVER, a8b8g8r8, null, b5g6r5,
fast_composite_over_8888_0565),
+ PIXMAN_STD_FAST_PATH (ADD, r5g6b5, null, r5g6b5,
fast_composite_add_0565_0565),
+ PIXMAN_STD_FAST_PATH (ADD, b5g6r5, null, b5g6r5,
fast_composite_add_0565_0565),
PIXMAN_STD_FAST_PATH (ADD, a8r8g8b8, null, a8r8g8b8,
fast_composite_add_8888_8888),
PIXMAN_STD_FAST_PATH (ADD, a8b8g8r8, null, a8b8g8r8,
fast_composite_add_8888_8888),
PIXMAN_STD_FAST_PATH (ADD, a8, null, a8, fast_composite_add_8_8),
--
1.7.3.4
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