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| author | Siarhei Siamashka <siarhei.siamashka@nokia.com> | 2009-10-27 12:25:13 +0200 |
|---|---|---|
| committer | Siarhei Siamashka <siarhei.siamashka@nokia.com> | 2009-10-27 12:32:04 +0200 |
| commit | 384fb88b905823e62c1f1733a20073bfea15d411 (patch) | |
| tree | 838b1315d98f1caebde237b0fb9055caacebb196 | |
| parent | a2985da94704af050b4422dca70fd2dd770faba4 (diff) | |
C fast path function for 'over_n_1_8888'
This function is needed to improve performance of xfce4 terminal.
Some other applications may potentially benefit too.
| -rw-r--r-- | pixman/pixman-fast-path.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/pixman/pixman-fast-path.c b/pixman/pixman-fast-path.c index 2bff8b4..e8857b1 100644 --- a/pixman/pixman-fast-path.c +++ b/pixman/pixman-fast-path.c @@ -1083,6 +1083,98 @@ fast_composite_add_1000_1000 (pixman_implementation_t *imp, } } +static void +fast_composite_over_n_1_8888 (pixman_implementation_t *imp, + pixman_op_t op, + pixman_image_t * src_image, + pixman_image_t * mask_image, + pixman_image_t * dst_image, + int32_t src_x, + int32_t src_y, + int32_t mask_x, + int32_t mask_y, + int32_t dest_x, + int32_t dest_y, + int32_t width, + int32_t height) +{ + uint32_t src, srca; + uint32_t *dst, *dst_line; + uint32_t *mask, *mask_line; + int mask_stride, dst_stride; + uint32_t bitcache, bitmask; + int32_t w; + + if (width <= 0) + return; + + src = _pixman_image_get_solid (src_image, dst_image->bits.format); + srca = src >> 24; + if (src == 0) + return; + + PIXMAN_IMAGE_GET_LINE (dst_image, dest_x, dest_y, uint32_t, + dst_stride, dst_line, 1); + PIXMAN_IMAGE_GET_LINE (mask_image, 0, mask_y, uint32_t, + mask_stride, mask_line, 1); + mask_line += mask_x >> 5; + + if (srca == 0xff) + { + while (height--) + { + dst = dst_line; + dst_line += dst_stride; + mask = mask_line; + mask_line += mask_stride; + w = width; + + bitcache = *mask++; + bitmask = CREATE_BITMASK (mask_x & 31); + + while (w--) + { + if (bitmask == 0) + { + bitcache = *mask++; + bitmask = CREATE_BITMASK (0); + } + if (bitcache & bitmask) + *dst = src; + bitmask = UPDATE_BITMASK (bitmask); + dst++; + } + } + } + else + { + while (height--) + { + dst = dst_line; + dst_line += dst_stride; + mask = mask_line; + mask_line += mask_stride; + w = width; + + bitcache = *mask++; + bitmask = CREATE_BITMASK (mask_x & 31); + + while (w--) + { + if (bitmask == 0) + { + bitcache = *mask++; + bitmask = CREATE_BITMASK (0); + } + if (bitcache & bitmask) + *dst = over (src, *dst); + bitmask = UPDATE_BITMASK (bitmask); + dst++; + } + } + } +} + /* * Simple bitblt */ @@ -1165,6 +1257,10 @@ static const pixman_fast_path_t c_fast_paths[] = { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8, PIXMAN_x8r8g8b8, fast_composite_over_n_8_8888, 0 }, { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8, PIXMAN_a8b8g8r8, fast_composite_over_n_8_8888, 0 }, { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8, PIXMAN_x8b8g8r8, fast_composite_over_n_8_8888, 0 }, + { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a1, PIXMAN_a8r8g8b8, fast_composite_over_n_1_8888, 0 }, + { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a1, PIXMAN_x8r8g8b8, fast_composite_over_n_1_8888, 0 }, + { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a1, PIXMAN_a8b8g8r8, fast_composite_over_n_1_8888, 0 }, + { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a1, PIXMAN_x8b8g8r8, fast_composite_over_n_1_8888, 0 }, { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8r8g8b8, PIXMAN_a8r8g8b8, fast_composite_over_n_8888_8888_ca, NEED_COMPONENT_ALPHA }, { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8r8g8b8, PIXMAN_x8r8g8b8, fast_composite_over_n_8888_8888_ca, NEED_COMPONENT_ALPHA }, { PIXMAN_OP_OVER, PIXMAN_solid, PIXMAN_a8r8g8b8, PIXMAN_r5g6b5, fast_composite_over_n_8888_0565_ca, NEED_COMPONENT_ALPHA }, |