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#include "ccvt.h"
#include <stdio.h>
#include "palettes.h"
struct palette_info {
int id;
char* name;
float bytesPerPixel;
Converter converterFunction24;
Converter converterFunction16;
int depth;
};
inline void BGR24ToRGB32(int width, int height, const void *voidSrc, void *voidDst) {
int i;
unsigned char* dest = (unsigned char*) voidDst;
unsigned char* src = (unsigned char*) voidSrc;
unsigned char red, green, blue;
const unsigned int widthTimesHeight = width * height;
for (i = 0; i < widthTimesHeight; i++) {
blue = *src++;
green = *src++;
red = *src++;
*dest++ = red;
*dest++ = green;
*dest++ = blue;
*dest++ = 255;
}
}
inline void RGB565ToRGB24(int width, int height, const void *voidSrc, void *voidDst) {
int i;
const unsigned char* src = (unsigned char*) voidSrc;
unsigned char* dest = (unsigned char*) voidDst;
unsigned char b1, b2;
unsigned char red, green, blue;
const unsigned int widthTimesHeight = width * height;
for (i = 0; i < widthTimesHeight; i++) {
b2 = *src++;
b1 = *src++;
red = b1 & 248 /* 11111000 */;
green = (b1 << 5) | (b2 >> 5);
blue = b2 << 3;
*dest++ = red;
*dest++ = green;
*dest++ = blue;
}
}
inline void BGR24ToRGB24(int width, int height, const void *voidSrc, void *voidDst) {
int i;
unsigned char* dest = (unsigned char*) voidDst;
unsigned char* src = (unsigned char*) voidSrc;
unsigned char red, green, blue;
const unsigned int widthTimesHeight = width * height;
for (i = 0; i < widthTimesHeight; i++) {
blue = *src++;
green = *src++;
red = *src++;
*dest++ = red;
*dest++ = green;
*dest++ = blue;
}
}
inline unsigned char clip(const int pixel) {
int result;
result = ((pixel < 0) ? 0 : pixel);
return (unsigned char) ((result < 255) ? result : 255);
}
// from: http://en.wikipedia.org/wiki/YUV422
inline void YUV444toRGB888(const unsigned char y,
const unsigned char u,
const unsigned char v,
unsigned char* dest) {
const int C = y - 16;
const int D = u - 128;
const int E = v - 128;
dest[0] = clip(( 298 * C + 409 * E + 128) >> 8);
dest[1] = clip(( 298 * C - 100 * D - 208 * E + 128) >> 8);
dest[2] = clip(( 298 * C + 516 * D + 128) >> 8);
}
// from: http://en.wikipedia.org/wiki/YUV422
inline void YUYVToRGB24(int width, int height, const void *voidSrc, void *voidDst) {
int i;
const unsigned char* src = (unsigned char*) voidSrc;
unsigned char* dest = (unsigned char*) voidDst;
unsigned char u, y1, v, y2;
const unsigned int widthTimesHeight = width * height;
for (i = 0; i < widthTimesHeight; i += 2) {
y1 = *src++;
u = *src++;
y2 = *src++;
v = *src++;
YUV444toRGB888(y1, u, v, dest);
dest += 3;
YUV444toRGB888(y2, u, v, dest);
dest += 3;
}
}
inline void YUV422ToRGB24(int width, int height, const void *voidSrc, void *voidDst) {
int i;
unsigned char* dest = (unsigned char*) voidDst;
unsigned char* src = (unsigned char*) voidSrc;
unsigned char u, y1, v, y2;
const unsigned int widthTimesHeight = width * height;
for (i = 0; i < widthTimesHeight; i += 2) {
u = *src++;
y1 = *src++;
v = *src++;
y2 = *src++;
YUV444toRGB888(y1, u, v, dest);
dest += 3;
YUV444toRGB888(y2, u, v, dest);
dest += 3;
}
}
static struct palette_info palette_info_list[] = {
{ 0, "UNKOWN - Unkown palette", 0.0, 0, 0, 0},
{ 1, "GREY - Linear greyscale", 0.0, 0, 0, 8},
{ 2, "HI240 - High 240 cube (BT848)", 0.0, 0, 0, 8},
{ 3, "RGB565 - 565 16 bit RGB", 2.0, RGB565ToRGB24, 0, 16},
{ 4, "RGB24 - 24bit RGB", 3.0, BGR24ToRGB24, 0, 24},
{ 5, "RGB32 - 32bit RGB", 4.0, ccvt_bgr32_rgb24, 0, 32},
{ 6, "RGB555 - 555 15bit RGB", 0.0, 0, 0, 16},
{ 7, "YUV422 - YUV422 capture", 1.5, YUV422ToRGB24, 0, 16},
{ 8, "YUYV", 2.0, YUYVToRGB24, 0, 16},
{ 9, "UYVY - The great thing about standards is ...", 0.0, 0, 0, 16},
{10, "YUV420", 1.5, ccvt_420p_rgb24, 0, 16},
{11, "YUV411 - YUV411 capture", 0.0, 0, 0, 12},
{12, "RAW - RAW capture (BT848)", 0.0, 0, 0, 8},
{13, "YUV422P - YUV 4:2:2 Planar", 0.0, 0, 0, 16},
{14, "YUV411P - YUV 4:1:1 Planar", 0.0, 0, 0, 12},
{15, "YUV420P - YUV 4:2:0 Planar", 1.5, ccvt_420p_rgb24, 0, 12},
{16, "YUV410P - YUV 4:1:0 Planar", 0.0, 0, 0, 9}
};
inline float paletteBytesPerPixel(int palette) {
float bytesPerPixel;
if (palette < 1 || palette > 16) {
fprintf(stdout, "* Invalid palette=%d\n", palette);
return 0;
}
bytesPerPixel = palette_info_list[palette].bytesPerPixel;
if (bytesPerPixel == 0) {
fprintf(stdout, "* Palette=%d not yet supported\n", palette);
return 0;
}
return bytesPerPixel;
}
inline char* paletteName(int palette) {
if (palette == 0) {
return "*automatic*";
}
if (palette < 0 || palette > 16) {
return "*UNKOWN*";
}
return palette_info_list[palette].name;
}
inline Converter converterFunction(const int palette) {
Converter funct;
if (palette < 1 || palette > 16) {
fprintf(stdout, "* Invalid palette=%d\n", palette);
return 0;
}
funct = palette_info_list[palette].converterFunction24;
if (funct == 0) {
fprintf(stdout, "* Palette=%d not yet supported\n", palette);
return 0;
}
return funct;
}
inline int paletteConvert24(const int palette,
const int width, const int height,
const void *src, void *dst) {
Converter funct = converterFunction(palette);
if (funct == 0) {
return 0;
}
funct(width, height, src, dst);
return 1;
}
inline int paletteDepth(int palette) {
int depth;
if (palette < 1 || palette > 16) {
fprintf(stdout, "* Invalid palette=%d\n", palette);
return 0;
}
depth = palette_info_list[palette].depth;
if (depth == 0) {
fprintf(stdout, "* Palette=%d not yet supported\n", palette);
return 0;
}
return depth;
}
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