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//========================================================================
//
// SplashBitmap.cc
//
//========================================================================
#include <aconf.h>
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdio.h>
#include "gmem.h"
#include "SplashErrorCodes.h"
#include "SplashBitmap.h"
//------------------------------------------------------------------------
// SplashBitmap
//------------------------------------------------------------------------
SplashBitmap::SplashBitmap(int widthA, int heightA, SplashColorMode modeA) {
width = widthA;
height = heightA;
mode = modeA;
switch (mode) {
case splashModeMono1:
rowSize = (width + 7) >> 3;
data.mono1 = (SplashMono1P *)
gmalloc(rowSize * height * sizeof(SplashMono1P));
break;
case splashModeMono8:
rowSize = width;
data.mono8 = (SplashMono8 *)
gmalloc(width * height * sizeof(SplashMono8));
break;
case splashModeRGB8:
rowSize = width << 2;
data.rgb8 = (SplashRGB8 *)
gmalloc(width * height * sizeof(SplashRGB8));
break;
case splashModeBGR8Packed:
rowSize = (width * 3 + 3) & ~3;
data.bgr8 = (SplashBGR8P *)
gmalloc(rowSize * height * sizeof(SplashMono1P));
}
}
SplashBitmap::~SplashBitmap() {
switch (mode) {
case splashModeMono1:
gfree(data.mono1);
break;
case splashModeMono8:
gfree(data.mono8);
break;
case splashModeRGB8:
gfree(data.rgb8);
break;
case splashModeBGR8Packed:
gfree(data.bgr8);
break;
}
}
SplashError SplashBitmap::writePNMFile(char *fileName) {
FILE *f;
SplashMono1P *mono1;
SplashMono8 *mono8;
SplashRGB8 *rgb8;
SplashBGR8P *bgr8line, *bgr8;
int x, y;
if (!(f = fopen(fileName, "wb"))) {
return splashErrOpenFile;
}
switch (mode) {
case splashModeMono1:
fprintf(f, "P4\n%d %d\n", width, height);
mono1 = data.mono1;
for (y = 0; y < height; ++y) {
for (x = 0; x < width; x += 8) {
fputc(*mono1 ^ 0xff, f);
++mono1;
}
}
break;
case splashModeMono8:
fprintf(f, "P5\n%d %d\n255\n", width, height);
mono8 = data.mono8;
for (y = 0; y < height; ++y) {
for (x = 0; x < width; ++x) {
fputc(*mono8, f);
++mono8;
}
}
break;
case splashModeRGB8:
fprintf(f, "P6\n%d %d\n255\n", width, height);
rgb8 = data.rgb8;
for (y = 0; y < height; ++y) {
for (x = 0; x < width; ++x) {
fputc(splashRGB8R(*rgb8), f);
fputc(splashRGB8G(*rgb8), f);
fputc(splashRGB8B(*rgb8), f);
++rgb8;
}
}
break;
case splashModeBGR8Packed:
fprintf(f, "P6\n%d %d\n255\n", width, height);
bgr8line = data.bgr8;
for (y = 0; y < height; ++y) {
bgr8 = bgr8line;
for (x = 0; x < width; ++x) {
fputc(bgr8[2], f);
fputc(bgr8[1], f);
fputc(bgr8[0], f);
bgr8 += 3;
}
bgr8line += rowSize;
}
break;
}
fclose(f);
return splashOk;
}
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