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unscaled converters

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BGR24 -> BGR32 & RGB24 -> RGB32
 BGR32 -> BGR24 & RGB32 -> RGB24

Originally committed as revision 4568 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-02-07 15:29:15 +00:00
parent adeaecb9ae
commit b935781b41
1 changed files with 81 additions and 1 deletions
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82
postproc/swscale.c
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@ -25,6 +25,21 @@
YV12/I420/IYUV -> BGR15/BGR16/BGR24/BGR32
YV12/I420/IYUV -> YV12/I420/IYUV
YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
BGR24 -> BGR32 & RGB24 -> RGB32
BGR32 -> BGR24 & RGB32 -> RGB24
*/
/*
tested special converters
YV12/I420 -> BGR16
YV12 -> YV12
untested special converters
YV12/I420/IYUV -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
YV12/I420/IYUV -> YV12/I420/IYUV
YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
BGR24 -> BGR32 & RGB24 -> RGB32
BGR32 -> BGR24 & RGB32 -> RGB24
*/
#include <inttypes.h>
@ -1134,6 +1149,47 @@ static void planarYuvToBgr(SwsContext *c, uint8_t* src[], int srcStride[], int s
yuv2rgb( dst,src[0],src[2],src[1],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
}
static void bgr24to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[]){
if(dstStride[0]*3==srcStride[0]*4)
rgb24to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*dstStride[0]>>2);
else
{
int i;
uint8_t *srcPtr= src[0];
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
for(i=0; i<srcSliceH; i++)
{
rgb24to32(srcPtr, dstPtr, c->srcW);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
}
static void bgr32to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[]){
if(dstStride[0]*4==srcStride[0]*3)
rgb32to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]>>2);
else
{
int i;
uint8_t *srcPtr= src[0];
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
for(i=0; i<srcSliceH; i++)
{
rgb32to24(srcPtr, dstPtr, c->srcW);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
}
/* unscaled copy like stuff (assumes nearly identical formats) */
static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[]){
@ -1294,7 +1350,7 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesFilter=1;
if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesFilter=1;
/* special Cases */
/* unscaled special Cases */
if(srcW==dstW && srcH==dstH && !usesFilter)
{
/* yuv2bgr */
@ -1320,6 +1376,30 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
vo_format_name(srcFormat), vo_format_name(dstFormat));
return c;
}
/* bgr32to24 & rgb32to24*/
if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR24)
||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB24))
{
c->swScale= bgr32to24Wrapper;
if(flags&SWS_PRINT_INFO)
printf("SwScaler: using unscaled %s -> %s special converter\n",
vo_format_name(srcFormat), vo_format_name(dstFormat));
return c;
}
/* bgr24to32 & rgb24to32*/
if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR32)
||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB32))
{
c->swScale= bgr24to32Wrapper;
if(flags&SWS_PRINT_INFO)
printf("SwScaler: using unscaled %s -> %s special converter\n",
vo_format_name(srcFormat), vo_format_name(dstFormat));
return c;
}
}
if(cpuCaps.hasMMX2)