diff options
author | 2001-03-24 04:36:17 +0000 | |
---|---|---|
committer | 2001-03-24 04:36:17 +0000 | |
commit | e72b62f8cc189053efe7e42078d7fa0f04dd425e (patch) | |
tree | 5fa3c0644fde7f0ef4ccf88cfe0f5e7f5a28edd0 /libvo/mga_common.c | |
parent | 96edb007a565f7fc9a50f1ba64ae24e05f903fbc (diff) |
grey+alpha rendering support (for .sub)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@203 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libvo/mga_common.c')
-rw-r--r-- | libvo/mga_common.c | 89 |
1 files changed, 29 insertions, 60 deletions
diff --git a/libvo/mga_common.c b/libvo/mga_common.c index 4fc5084d60..8779c68d19 100644 --- a/libvo/mga_common.c +++ b/libvo/mga_common.c @@ -7,64 +7,40 @@ static mga_vid_config_t mga_vid_config; static uint8_t *vid_data, *frames[4]; static int f; +static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){ + int x,y; + uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31; + + if (mga_vid_config.format==MGA_VID_FORMAT_YV12){ + + for(y=0;y<h;y++){ + uint8_t *dst = vid_data + bespitch * (y0+y) + x0; + for(x=0;x<w;x++){ +// dst[x]=(dst[x]*srca[x]+src[x]*(srca[x]^255))>>8; + if(srca[x]) + dst[x]=(dst[x]*(srca[x]^255)+src[x]*(srca[x]))>>8; + } + src+=stride; + srca+=stride; + } -static void -write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb) -{ - uint8_t *dest; - uint32_t bespitch,h,w; + } else { + + for(y=0;y<h;y++){ + uint8_t *dst = vid_data + 2*(bespitch * (y0+y) + x0); + for(x=0;x<w;x++){ +// dst[x]=(dst[x]*srca[x]+src[x]*(srca[x]^255))>>8; + if(srca[x]) + dst[2*x]=(dst[2*x]*(srca[x]^255)+src[x]*(srca[x]))>>8; + } + src+=stride; + srca+=stride; + } - dest = vid_data; - bespitch = (mga_vid_config.src_width + 31) & ~31; + } - for(h=0; h < mga_vid_config.src_height; h++) - { - memcpy(dest, y, mga_vid_config.src_width); - y += mga_vid_config.src_width; - dest += bespitch; - } - - for(h=0; h < mga_vid_config.src_height/2; h++) - { - for(w=0; w < mga_vid_config.src_width/2; w++) - { - *dest++ = *cb++; - *dest++ = *cr++; - } - dest += bespitch - mga_vid_config.src_width; - } } -static void -write_frame_g400(uint8_t *y,uint8_t *cr, uint8_t *cb) -{ - uint8_t *dest; - uint32_t bespitch,h; - - dest = vid_data; - bespitch = (mga_vid_config.src_width + 31) & ~31; - - for(h=0; h < mga_vid_config.src_height; h++) - { - memcpy(dest, y, mga_vid_config.src_width); - y += mga_vid_config.src_width; - dest += bespitch; - } - - for(h=0; h < mga_vid_config.src_height/2; h++) - { - memcpy(dest, cb, mga_vid_config.src_width/2); - cb += mga_vid_config.src_width/2; - dest += bespitch/2; - } - - for(h=0; h < mga_vid_config.src_height/2; h++) - { - memcpy(dest, cr, mga_vid_config.src_width/2); - cr += mga_vid_config.src_width/2; - dest += bespitch/2; - } -} //static void //write_slice_g200(uint8_t *y,uint8_t *cr, uint8_t *cb,uint32_t slice_num) @@ -200,13 +176,6 @@ draw_frame(uint8_t *src[]) { if (mga_vid_config.format==MGA_VID_FORMAT_YUY2) write_frame_yuy2(src[0]); - else - if (mga_vid_config.card_type == MGA_G200) - write_frame_g200(src[0], src[2], src[1]); - else - write_frame_g400(src[0], src[2], src[1]); - - //flip_page(); return 0; } |