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Use av_get_bits_per_pixel() for computing the bits per pixel of the

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source and destination format, cache those values in the newly added
SwsContext:srcFormatBpp and SwsContext:dstFormatBpp fields, and remove
the fmt_depth() function.

Originally committed as revision 30419 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Stefano Sabatini 2010-01-24 12:55:05 +00:00
parent 59398ea9c0
commit 30b6147521
4 changed files with 12 additions and 46 deletions
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14
libswscale/swscale.c
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@ -882,7 +882,7 @@ static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, con
const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
{
int i;
int step= fmt_depth(c->dstFormat)/8;
int step= c->dstFormatBpp/8;
int aidx= 3;
switch(c->dstFormat) {
@ -1430,10 +1430,10 @@ static int rgb2rgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[],
{
const enum PixelFormat srcFormat= c->srcFormat;
const enum PixelFormat dstFormat= c->dstFormat;
const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
const int dstId= fmt_depth(dstFormat) >> 2;
const int srcBpp= (c->srcFormatBpp + 7) >> 3;
const int dstBpp= (c->dstFormatBpp + 7) >> 3;
const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
const int dstId= c->dstFormatBpp >> 2;
void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
/* BGR -> BGR */
@ -1661,8 +1661,8 @@ void ff_get_unscaled_swscale(SwsContext *c)
int needsDither;
needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
&& (fmt_depth(dstFormat))<24
&& ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
&& c->srcFormatBpp < 24
&& (c->dstFormatBpp < c->srcFormatBpp || (!(isRGB(srcFormat) || isBGR(srcFormat))));
/* yv12_to_nv12 */
if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {

40
libswscale/swscale_internal.h
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@ -86,6 +86,8 @@ typedef struct SwsContext {
int lumYInc, chrYInc;
enum PixelFormat dstFormat; ///< Destination pixel format.
enum PixelFormat srcFormat; ///< Source pixel format.
int dstFormatBpp; ///< Number of bits per pixel of the destination pixel format.
int srcFormatBpp; ///< Number of bits per pixel of the source pixel format.
int chrSrcHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source image.
int chrSrcVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image.
int chrDstHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination image.
@ -417,44 +419,6 @@ const char *sws_format_name(enum PixelFormat format);
|| (x)==PIX_FMT_YUVA420P \
)
static inline int fmt_depth(enum PixelFormat fmt)
{
switch(fmt) {
case PIX_FMT_RGB48BE:
case PIX_FMT_RGB48LE:
return 48;
case PIX_FMT_BGRA:
case PIX_FMT_ABGR:
case PIX_FMT_RGBA:
case PIX_FMT_ARGB:
return 32;
case PIX_FMT_BGR24:
case PIX_FMT_RGB24:
return 24;
case PIX_FMT_BGR565:
case PIX_FMT_RGB565:
case PIX_FMT_GRAY16BE:
case PIX_FMT_GRAY16LE:
return 16;
case PIX_FMT_BGR555:
case PIX_FMT_RGB555:
return 15;
case PIX_FMT_BGR8:
case PIX_FMT_RGB8:
return 8;
case PIX_FMT_BGR4:
case PIX_FMT_RGB4:
case PIX_FMT_BGR4_BYTE:
case PIX_FMT_RGB4_BYTE:
return 4;
case PIX_FMT_MONOBLACK:
case PIX_FMT_MONOWHITE:
return 1;
default:
return 0;
}
}
extern const uint64_t ff_dither4[2];
extern const uint64_t ff_dither8[2];

2
libswscale/utils.c
View File

@ -854,6 +854,8 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat,
c->flags= flags;
c->dstFormat= dstFormat;
c->srcFormat= srcFormat;
c->dstFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[dstFormat]);
c->srcFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[srcFormat]);
c->vRounder= 4* 0x0001000100010001ULL;
usesHFilter= usesVFilter= 0;

2
libswscale/yuv2rgb.c
View File

@ -595,7 +595,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int
|| c->dstFormat==PIX_FMT_RGB4
|| c->dstFormat==PIX_FMT_RGB4_BYTE
|| c->dstFormat==PIX_FMT_MONOBLACK;
const int bpp = fmt_depth(c->dstFormat);
const int bpp = c->dstFormatBpp;
uint8_t *y_table;
uint16_t *y_table16;
uint32_t *y_table32;