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-rw-r--r--kpdf/xpdf/splash/SplashBitmap.cc188
1 files changed, 188 insertions, 0 deletions
diff --git a/kpdf/xpdf/splash/SplashBitmap.cc b/kpdf/xpdf/splash/SplashBitmap.cc
new file mode 100644
index 00000000..0cb1a752
--- /dev/null
+++ b/kpdf/xpdf/splash/SplashBitmap.cc
@@ -0,0 +1,188 @@
+//========================================================================
+//
+// 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, int rowPad,
+ SplashColorMode modeA, GBool alphaA,
+ GBool topDown) {
+ width = widthA;
+ height = heightA;
+ mode = modeA;
+ switch (mode) {
+ case splashModeMono1:
+ rowSize = (width + 7) >> 3;
+ break;
+ case splashModeMono8:
+ rowSize = width;
+ break;
+ case splashModeRGB8:
+ case splashModeBGR8:
+ rowSize = width * 3;
+ break;
+#if SPLASH_CMYK
+ case splashModeCMYK8:
+ rowSize = width * 4;
+ break;
+#endif
+ }
+ rowSize += rowPad - 1;
+ rowSize -= rowSize % rowPad;
+ data = (SplashColorPtr)gmalloc(rowSize * height);
+ if (!topDown) {
+ data += (height - 1) * rowSize;
+ rowSize = -rowSize;
+ }
+ if (alphaA) {
+ alpha = (Guchar *)gmalloc(width * height);
+ } else {
+ alpha = NULL;
+ }
+}
+
+
+SplashBitmap::~SplashBitmap() {
+ if (rowSize < 0) {
+ gfree(data + (height - 1) * rowSize);
+ } else {
+ gfree(data);
+ }
+ gfree(alpha);
+}
+
+SplashError SplashBitmap::writePNMFile(char *fileName) {
+ FILE *f;
+ SplashColorPtr row, p;
+ int x, y;
+
+ if (!(f = fopen(fileName, "wb"))) {
+ return splashErrOpenFile;
+ }
+
+ switch (mode) {
+
+ case splashModeMono1:
+ fprintf(f, "P4\n%d %d\n", width, height);
+ row = data;
+ for (y = 0; y < height; ++y) {
+ p = row;
+ for (x = 0; x < width; x += 8) {
+ fputc(*p ^ 0xff, f);
+ ++p;
+ }
+ row += rowSize;
+ }
+ break;
+
+ case splashModeMono8:
+ fprintf(f, "P5\n%d %d\n255\n", width, height);
+ row = data;
+ for (y = 0; y < height; ++y) {
+ p = row;
+ for (x = 0; x < width; ++x) {
+ fputc(*p, f);
+ ++p;
+ }
+ row += rowSize;
+ }
+ break;
+
+ case splashModeRGB8:
+ fprintf(f, "P6\n%d %d\n255\n", width, height);
+ row = data;
+ for (y = 0; y < height; ++y) {
+ p = row;
+ for (x = 0; x < width; ++x) {
+ fputc(splashRGB8R(p), f);
+ fputc(splashRGB8G(p), f);
+ fputc(splashRGB8B(p), f);
+ p += 3;
+ }
+ row += rowSize;
+ }
+ break;
+
+ case splashModeBGR8:
+ fprintf(f, "P6\n%d %d\n255\n", width, height);
+ row = data;
+ for (y = 0; y < height; ++y) {
+ p = row;
+ for (x = 0; x < width; ++x) {
+ fputc(splashBGR8R(p), f);
+ fputc(splashBGR8G(p), f);
+ fputc(splashBGR8B(p), f);
+ p += 3;
+ }
+ row += rowSize;
+ }
+ break;
+
+#if SPLASH_CMYK
+ case splashModeCMYK8:
+ // PNM doesn't support CMYK
+ break;
+#endif
+ }
+
+ fclose(f);
+ return splashOk;
+}
+
+void SplashBitmap::getPixel(int x, int y, SplashColorPtr pixel) {
+ SplashColorPtr p;
+
+ if (y < 0 || y >= height || x < 0 || x >= width) {
+ return;
+ }
+ switch (mode) {
+ case splashModeMono1:
+ p = &data[y * rowSize + (x >> 3)];
+ pixel[0] = (p[0] & (0x80 >> (x & 7))) ? 0xff : 0x00;
+ break;
+ case splashModeMono8:
+ p = &data[y * rowSize + x];
+ pixel[0] = p[0];
+ break;
+ case splashModeRGB8:
+ p = &data[y * rowSize + 3 * x];
+ pixel[0] = p[0];
+ pixel[1] = p[1];
+ pixel[2] = p[2];
+ break;
+ case splashModeBGR8:
+ p = &data[y * rowSize + 3 * x];
+ pixel[0] = p[2];
+ pixel[1] = p[1];
+ pixel[2] = p[0];
+ break;
+#if SPLASH_CMYK
+ case splashModeCMYK8:
+ p = &data[y * rowSize + 4 * x];
+ pixel[0] = p[0];
+ pixel[1] = p[1];
+ pixel[2] = p[2];
+ pixel[3] = p[3];
+ break;
+#endif
+ }
+}
+
+Guchar SplashBitmap::getAlpha(int x, int y) {
+ return alpha[y * width + x];
+}