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deprecate palette8topacked32 in favor of public API functions sws_convertPalette8ToPacked32 and -24 

additionallym deprecate palette8torgb16 and its bgr variant without
replacement. These functions are not meant to be used by applications.

Discussed at: http://comments.gmane.org/gmane.comp.video.ffmpeg.devel/109340

Originally committed as revision 31301 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Reinhard Tartler 2010-06-01 19:35:16 +00:00
parent 73404a44c1
commit 2b991422f8
4 changed files with 72 additions and 31 deletions
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23
libswscale/rgb2rgb.c
View File

@ -207,31 +207,15 @@ void sws_rgb2rgb_init(int flags)
rgb2rgb_init_C();
}
/**
* Convert the palette to the same packet 32-bit format as the palette
*/
#if LIBSWSCALE_VERSION_MAJOR < 1
void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
sws_convertPalette8ToPacked32(src, dst, num_pixels, palette);
}
/**
* Palette format: ABCD -> dst format: ABC
*/
void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++) {
//FIXME slow?
dst[0]= palette[src[i]*4+0];
dst[1]= palette[src[i]*4+1];
dst[2]= palette[src[i]*4+2];
dst+= 3;
}
sws_convertPalette8ToPacked24(src, dst, num_pixels, palette);
}
/**
@ -249,6 +233,7 @@ void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const ui
for (i=0; i<num_pixels; i++)
((uint16_t *)dst)[i] = bswap_16(((const uint16_t *)palette)[src[i]]);
}
#endif
void rgb32to24(const uint8_t *src, uint8_t *dst, long src_size)
{

18
libswscale/rgb2rgb.h
View File

@ -4,7 +4,7 @@
* Software YUV to YUV converter
* Software YUV to RGB converter
* Written by Nick Kurshev.
* palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
* YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
*
* This file is part of FFmpeg.
*
@ -28,6 +28,9 @@
#include <inttypes.h>
#include "libswscale/swscale.h"
#include "libavutil/avutil.h"
/* A full collection of RGB to RGB(BGR) converters */
extern void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
extern void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
@ -66,10 +69,15 @@ void shuffle_bytes_2103(const uint8_t *src, uint8_t *dst, long src_size);
void shuffle_bytes_3012(const uint8_t *src, uint8_t *dst, long src_size);
void shuffle_bytes_3210(const uint8_t *src, uint8_t *dst, long src_size);
void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
#if LIBSWSCALE_VERSION_MAJOR < 1
/* deprecated, use the public versions in swscale.h */
attribute_deprecated void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
attribute_deprecated void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
/* totally deprecated, please fix code that uses this */
attribute_deprecated void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
attribute_deprecated void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
#endif
/**
* Height should be a multiple of 2 and width should be a multiple of 16.

35
libswscale/swscale.c
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@ -1419,12 +1419,12 @@ static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[],
if (usePal(srcFormat)) {
switch (dstFormat) {
case PIX_FMT_RGB32 : conv = palette8topacked32; break;
case PIX_FMT_BGR32 : conv = palette8topacked32; break;
case PIX_FMT_BGR32_1: conv = palette8topacked32; break;
case PIX_FMT_RGB32_1: conv = palette8topacked32; break;
case PIX_FMT_RGB24 : conv = palette8topacked24; break;
case PIX_FMT_BGR24 : conv = palette8topacked24; break;
case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
}
}
@ -1957,3 +1957,26 @@ int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[]
return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
}
#endif
/* Convert the palette to the same packed 32-bit format as the palette */
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
}
/* Palette format: ABCD -> dst format: ABC */
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++) {
//FIXME slow?
dst[0]= palette[src[i]*4+0];
dst[1]= palette[src[i]*4+1];
dst[2]= palette[src[i]*4+2];
dst+= 3;
}
}

27
libswscale/swscale.h
View File

@ -30,7 +30,7 @@
#include "libavutil/avutil.h"
#define LIBSWSCALE_VERSION_MAJOR 0
#define LIBSWSCALE_VERSION_MINOR 10
#define LIBSWSCALE_VERSION_MINOR 11
#define LIBSWSCALE_VERSION_MICRO 0
#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
@ -303,4 +303,29 @@ struct SwsContext *sws_getCachedContext(struct SwsContext *context,
int flags, SwsFilter *srcFilter,
SwsFilter *dstFilter, const double *param);
/**
* Converts an 8bit paletted frame into a frame with a color depth of 32-bits.
*
* The output frame will have the same packed format as the palette.
*
* @param src source frame buffer
* @param dst destination frame buffer
* @param num_pixels number of pixels to convert
* @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src
*/
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
/**
* Converts an 8bit paletted frame into a frame with a color depth of 24 bits.
*
* With the palette format "ABCD", the destination frame ends up with the format "ABC".
*
* @param src source frame buffer
* @param dst destination frame buffer
* @param num_pixels number of pixels to convert
* @param palette array with [256] entries, which must match color arrangement (RGB or BGR) of src
*/
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette);
#endif /* SWSCALE_SWSCALE_H */