diff options
Diffstat (limited to 'libvo/osd.c')
-rw-r--r-- | libvo/osd.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/libvo/osd.c b/libvo/osd.c new file mode 100644 index 0000000000..b767f88f18 --- /dev/null +++ b/libvo/osd.c @@ -0,0 +1,115 @@ +// Generic alpha renderers for all YUV modes and RGB depths. +// These are "reference implementations", should be optimized later (MMX, etc) + +void vo_draw_alpha_yv12(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register int x; + for(x=0;x<w;x++){ + if(srca[x]) dstbase[x]=((dstbase[x]*srca[x])>>8)+src[x]; + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + +void vo_draw_alpha_yuy2(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register int x; + for(x=0;x<w;x++){ + if(srca[x]) dstbase[2*x]=((dstbase[2*x]*srca[x])>>8)+src[x]; + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + +void vo_draw_alpha_rgb24(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register unsigned char *dst = dstbase; + register int x; + for(x=0;x<w;x++){ + if(srca[x]){ + dst[0]=((dst[0]*srca[x])>>8)+src[x]; + dst[1]=((dst[1]*srca[x])>>8)+src[x]; + dst[2]=((dst[2]*srca[x])>>8)+src[x]; + } + dst+=3; // 24bpp + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + +void vo_draw_alpha_rgb32(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register int x; + for(x=0;x<w;x++){ + if(srca[x]){ + dstbase[4*x+0]=((dstbase[4*x+0]*srca[x])>>8)+src[x]; + dstbase[4*x+1]=((dstbase[4*x+1]*srca[x])>>8)+src[x]; + dstbase[4*x+2]=((dstbase[4*x+2]*srca[x])>>8)+src[x]; + } + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + +void vo_draw_alpha_rgb15(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register unsigned short *dst = (unsigned short*) dstbase; + register int x; + for(x=0;x<w;x++){ + if(srca[x]){ + unsigned char r=dst[x]&0x1F; + unsigned char g=(dst[x]>>5)&0x1F; + unsigned char b=(dst[x]>>10)&0x1F; + r=(((r*srca[x])>>5)+src[x])>>3; + g=(((g*srca[x])>>5)+src[x])>>3; + b=(((b*srca[x])>>5)+src[x])>>3; + dst[x]=(b<<10)|(g<<5)|r; + } + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + +void vo_draw_alpha_rgb16(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ + int y; + for(y=0;y<h;y++){ + register unsigned short *dst = (unsigned short*) dstbase; + register int x; + for(x=0;x<w;x++){ + if(srca[x]){ + unsigned char r=dst[x]&0x1F; + unsigned char g=(dst[x]>>5)&0x3F; + unsigned char b=(dst[x]>>11)&0x1F; + r=(((r*srca[x])>>5)+src[x])>>3; + g=(((g*srca[x])>>6)+src[x])>>2; + b=(((b*srca[x])>>5)+src[x])>>3; + dst[x]=(b<<11)|(g<<5)|r; + } + } + src+=srcstride; + srca+=srcstride; + dstbase+=dststride; + } + return; +} + |