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Code Issues Releases Activity

Move read_line() and write_line() definition from pixdesc.h to

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pixdesc.c, which are now not anymore marked as static inline.

Fix the inclusion of the private header intreadwrite.h in the public
header pixdesc.h.

Originally committed as revision 21854 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-02-16 20:17:50 +00:00
parent a636b58ce1
commit f47a7cb777
2 changed files with 84 additions and 78 deletions
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80
libavutil/pixdesc.c
View File

@ -22,6 +22,86 @@
#include "pixfmt.h"
#include "pixdesc.h"
#include "intreadwrite.h"
void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
{
AVComponentDescriptor comp= desc->comp[c];
int plane= comp.plane;
int depth= comp.depth_minus1+1;
int mask = (1<<depth)-1;
int shift= comp.shift;
int step = comp.step_minus1+1;
int flags= desc->flags;
if (flags & PIX_FMT_BITSTREAM){
int skip = x*step + comp.offset_plus1-1;
const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while(w--){
int val = (*p >> shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
shift -= step;
p -= shift>>3;
shift &= 7;
*dst++= val;
}
} else {
const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
while(w--){
int val;
if(flags & PIX_FMT_BE) val= AV_RB16(p);
else val= AV_RL16(p);
val = (val>>shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
p+= step;
*dst++= val;
}
}
}
void write_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
{
AVComponentDescriptor comp = desc->comp[c];
int plane = comp.plane;
int depth = comp.depth_minus1+1;
int step = comp.step_minus1+1;
int flags = desc->flags;
if (flags & PIX_FMT_BITSTREAM) {
int skip = x*step + comp.offset_plus1-1;
uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while (w--) {
*p |= *src++ << shift;
shift -= step;
p -= shift>>3;
shift &= 7;
}
} else {
int shift = comp.shift;
uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
while (w--) {
if (flags & PIX_FMT_BE) {
uint16_t val = AV_RB16(p) | (*src++<<shift);
AV_WB16(p, val);
} else {
uint16_t val = AV_RL16(p) | (*src++<<shift);
AV_WL16(p, val);
}
p+= step;
}
}
}
const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
[PIX_FMT_YUV420P] = {
.name = "yuv420p",

82
libavutil/pixdesc.h
View File

@ -24,8 +24,6 @@
#include <inttypes.h>
#include "intreadwrite.h"
typedef struct AVComponentDescriptor{
uint16_t plane :2; ///< which of the 4 planes contains the component
@ -110,46 +108,8 @@ extern const AVPixFmtDescriptor av_pix_fmt_descriptors[];
* component c in data[1] to dst, rather than the palette indexes in
* data[0]. The behavior is undefined if the format is not paletted.
*/
static inline void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
{
AVComponentDescriptor comp= desc->comp[c];
int plane= comp.plane;
int depth= comp.depth_minus1+1;
int mask = (1<<depth)-1;
int shift= comp.shift;
int step = comp.step_minus1+1;
int flags= desc->flags;
if (flags & PIX_FMT_BITSTREAM){
int skip = x*step + comp.offset_plus1-1;
const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while(w--){
int val = (*p >> shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
shift -= step;
p -= shift>>3;
shift &= 7;
*dst++= val;
}
} else {
const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
while(w--){
int val;
if(flags & PIX_FMT_BE) val= AV_RB16(p);
else val= AV_RL16(p);
val = (val>>shift) & mask;
if(read_pal_component)
val= data[1][4*val + c];
p+= step;
*dst++= val;
}
}
}
void read_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component);
/**
* Writes the values from src to the pixel format component c of an
@ -165,42 +125,8 @@ static inline void read_line(uint16_t *dst, const uint8_t *data[4], const int li
* @param w the width of the line to write, that is the number of
* values to write to the image line
*/
static inline void write_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
{
AVComponentDescriptor comp = desc->comp[c];
int plane = comp.plane;
int depth = comp.depth_minus1+1;
int step = comp.step_minus1+1;
int flags = desc->flags;
if (flags & PIX_FMT_BITSTREAM) {
int skip = x*step + comp.offset_plus1-1;
uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
int shift = 8 - depth - (skip&7);
while (w--) {
*p |= *src++ << shift;
shift -= step;
p -= shift>>3;
shift &= 7;
}
} else {
int shift = comp.shift;
uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
while (w--) {
if (flags & PIX_FMT_BE) {
uint16_t val = AV_RB16(p) | (*src++<<shift);
AV_WB16(p, val);
} else {
uint16_t val = AV_RL16(p) | (*src++<<shift);
AV_WL16(p, val);
}
p+= step;
}
}
}
void write_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
const AVPixFmtDescriptor *desc, int x, int y, int c, int w);
/**
* Returns the pixel format corresponding to name.