1 files changed, 207 insertions, 0 deletions
diff --git a/kpdf/xpdf/splash/SplashBitmap.cpp b/kpdf/xpdf/splash/SplashBitmap.cpp
new file mode 100644
index 00000000..5b5d28d1
--- /dev/null
+++ b/kpdf/xpdf/splash/SplashBitmap.cpp
@@ -0,0 +1,207 @@
+//========================================================================
+//
+// SplashBitmap.cpp
+//
+//========================================================================
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma implementation
+#endif
+
+#include <stdio.h>
+#include <limits.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:
+    if (width > 0) {
+      rowSize = (width + 7) >> 3;
+    } else {
+      rowSize = -1;
+    }
+    break;
+  case splashModeMono8:
+    if (width > 0) {
+      rowSize = width;
+    } else {
+      rowSize = -1;
+    }
+    break;
+  case splashModeRGB8:
+  case splashModeBGR8:
+    if (width > 0 && width <= INT_MAX / 3) {
+      rowSize = width * 3;
+    } else {
+      rowSize = -1;
+    }
+    break;
+#if SPLASH_CMYK
+  case splashModeCMYK8:
+    if (width > 0 && width <= INT_MAX / 4) {
+      rowSize = width * 4;
+    } else {
+      rowSize = -1;
+    }
+    break;
+#endif
+  }
+  if (rowSize > 0) {
+    rowSize += rowPad - 1;
+    rowSize -= rowSize % rowPad;
+  }
+  data = (SplashColorPtr)gmallocn(height, rowSize);
+  if (!topDown) {
+    data += (height - 1) * rowSize;
+    rowSize = -rowSize;
+  }
+  if (alphaA) {
+    alpha = (Guchar *)gmallocn(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];
+}