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| author | Alexander Strange <astrange@ithinksw.com> | 2011-03-26 17:31:13 -0400 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2011-03-26 17:45:38 -0400 |
| commit | 1500be13f204acb7e74dac4325ef0052576fa2a9 (patch) | |
| tree | 848f4349ffc98e779caa3af34fd57dc3b21f2c16 /libavcodec/x86/dsputil_mmx.c | |
| parent | c56e618b4b731d761a44fd4666b03829388ad028 (diff) | |
| download | ffmpeg-streaming-1500be13f204acb7e74dac4325ef0052576fa2a9.zip ffmpeg-streaming-1500be13f204acb7e74dac4325ef0052576fa2a9.tar.gz | |
dsputil: allow to skip drawing of top/bottom edges.
Diffstat (limited to 'libavcodec/x86/dsputil_mmx.c')
| -rw-r--r-- | libavcodec/x86/dsputil_mmx.c | 69 |
1 files changed, 38 insertions, 31 deletions
diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c index 4d1a305..f98e6ae 100644 --- a/libavcodec/x86/dsputil_mmx.c +++ b/libavcodec/x86/dsputil_mmx.c @@ -783,7 +783,7 @@ static void h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale){ /* draw the edges of width 'w' of an image of size width, height this mmx version can only handle w==8 || w==16 */ -static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w) +static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w, int sides) { uint8_t *ptr, *last_line; int i; @@ -836,36 +836,43 @@ static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w) ); } - for(i=0;i<w;i+=4) { - /* top and bottom (and hopefully also the corners) */ - ptr= buf - (i + 1) * wrap - w; - __asm__ volatile( - "1: \n\t" - "movq (%1, %0), %%mm0 \n\t" - "movq %%mm0, (%0) \n\t" - "movq %%mm0, (%0, %2) \n\t" - "movq %%mm0, (%0, %2, 2) \n\t" - "movq %%mm0, (%0, %3) \n\t" - "add $8, %0 \n\t" - "cmp %4, %0 \n\t" - " jb 1b \n\t" - : "+r" (ptr) - : "r" ((x86_reg)buf - (x86_reg)ptr - w), "r" ((x86_reg)-wrap), "r" ((x86_reg)-wrap*3), "r" (ptr+width+2*w) - ); - ptr= last_line + (i + 1) * wrap - w; - __asm__ volatile( - "1: \n\t" - "movq (%1, %0), %%mm0 \n\t" - "movq %%mm0, (%0) \n\t" - "movq %%mm0, (%0, %2) \n\t" - "movq %%mm0, (%0, %2, 2) \n\t" - "movq %%mm0, (%0, %3) \n\t" - "add $8, %0 \n\t" - "cmp %4, %0 \n\t" - " jb 1b \n\t" - : "+r" (ptr) - : "r" ((x86_reg)last_line - (x86_reg)ptr - w), "r" ((x86_reg)wrap), "r" ((x86_reg)wrap*3), "r" (ptr+width+2*w) - ); + /* top and bottom (and hopefully also the corners) */ + if (sides&EDGE_TOP) { + for(i = 0; i < w; i += 4) { + ptr= buf - (i + 1) * wrap - w; + __asm__ volatile( + "1: \n\t" + "movq (%1, %0), %%mm0 \n\t" + "movq %%mm0, (%0) \n\t" + "movq %%mm0, (%0, %2) \n\t" + "movq %%mm0, (%0, %2, 2) \n\t" + "movq %%mm0, (%0, %3) \n\t" + "add $8, %0 \n\t" + "cmp %4, %0 \n\t" + " jb 1b \n\t" + : "+r" (ptr) + : "r" ((x86_reg)buf - (x86_reg)ptr - w), "r" ((x86_reg)-wrap), "r" ((x86_reg)-wrap*3), "r" (ptr+width+2*w) + ); + } + } + + if (sides&EDGE_BOTTOM) { + for(i = 0; i < w; i += 4) { + ptr= last_line + (i + 1) * wrap - w; + __asm__ volatile( + "1: \n\t" + "movq (%1, %0), %%mm0 \n\t" + "movq %%mm0, (%0) \n\t" + "movq %%mm0, (%0, %2) \n\t" + "movq %%mm0, (%0, %2, 2) \n\t" + "movq %%mm0, (%0, %3) \n\t" + "add $8, %0 \n\t" + "cmp %4, %0 \n\t" + " jb 1b \n\t" + : "+r" (ptr) + : "r" ((x86_reg)last_line - (x86_reg)ptr - w), "r" ((x86_reg)wrap), "r" ((x86_reg)wrap*3), "r" (ptr+width+2*w) + ); + } } } |
