Move the netradiant and fteqcc sources

[voretournament/voretournament.git] / misc / mediasource / netradiant-src / plugins / image / bmp.cpp

diff --git a/misc/mediasource/netradiant-src/plugins/image/bmp.cpp b/misc/mediasource/netradiant-src/plugins/image/bmp.cpp
new file mode 100644 (file)
index 0000000..9c8ca3d
--- /dev/null
+++ b/misc/mediasource/netradiant-src/plugins/image/bmp.cpp
@@ -0,0 +1,207 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "bmp.h"
+
+#include "ifilesystem.h"
+
+typedef unsigned char byte;
+
+#include "imagelib.h"
+#include "bytestreamutils.h"
+
+
+typedef unsigned char PaletteEntry[4];
+typedef struct
+{
+  char id[2];
+  unsigned long fileSize;
+  unsigned long reserved0;
+  unsigned long bitmapDataOffset;
+  unsigned long bitmapHeaderSize;
+  unsigned long width;
+  unsigned long height;
+  unsigned short planes;
+  unsigned short bitsPerPixel;
+  unsigned long compression;
+  unsigned long bitmapDataSize;
+  unsigned long hRes;
+  unsigned long vRes;
+  unsigned long colors;
+  unsigned long importantColors;
+  PaletteEntry palette[256];
+} BMPHeader_t;
+
+class ReadPixel8
+{
+  PaletteEntry* m_palette;
+public:
+  ReadPixel8(PaletteEntry* palette) : m_palette(palette)
+  {
+  }
+  void operator()(PointerInputStream& inputStream, byte*& pixbuf) const
+  {
+    byte palIndex;
+    inputStream.read(&palIndex, 1);
+    *pixbuf++ = m_palette[palIndex][2];
+    *pixbuf++ = m_palette[palIndex][1];
+    *pixbuf++ = m_palette[palIndex][0];
+    *pixbuf++ = 0xff;
+  }
+};
+
+class ReadPixel16
+{
+public:
+  void operator()(PointerInputStream& inputStream, byte*& pixbuf) const
+  {
+    unsigned short shortPixel;
+    inputStream.read(reinterpret_cast<byte*>(&shortPixel), sizeof(unsigned short)); //!\todo Is this endian safe?
+    *pixbuf++ = static_cast<byte>(shortPixel & (31 << 10)) >> 7;
+    *pixbuf++ = static_cast<byte>(shortPixel & (31 << 5)) >> 2;
+    *pixbuf++ = static_cast<byte>(shortPixel & (31)) << 3;
+    *pixbuf++ = 0xff;
+  }
+};
+
+class ReadPixel24
+{
+public:
+  void operator()(PointerInputStream& inputStream, byte*& pixbuf) const
+  {
+    byte bgr[3];
+    inputStream.read(bgr, 3);
+    *pixbuf++ = bgr[2];
+    *pixbuf++ = bgr[1];
+    *pixbuf++ = bgr[0];
+    *pixbuf++ = 255;
+  }
+};
+
+class ReadPixel32
+{
+public:
+  void operator()(PointerInputStream& inputStream, byte*& pixbuf) const
+  {
+    byte bgra[4];
+    inputStream.read(bgra, 4);
+    *pixbuf++ = bgra[2];
+    *pixbuf++ = bgra[1];
+    *pixbuf++ = bgra[0];
+    *pixbuf++ = bgra[3];
+  }
+};
+
+template<typename ReadPixel>
+void ReadBMP(PointerInputStream& inputStream, byte* bmpRGBA, int rows, int columns, ReadPixel readPixel)
+{
+  for (int row = rows - 1; row >= 0; row--)
+  {
+    byte* pixbuf = bmpRGBA + row * columns * 4;
+
+    for (int column = 0; column < columns; column++)
+    {
+      readPixel(inputStream, pixbuf);
+    }
+  }
+}
+
+Image* LoadBMPBuff(PointerInputStream& inputStream, std::size_t length)
+{
+  BMPHeader_t bmpHeader;
+  inputStream.read(reinterpret_cast<byte*>(bmpHeader.id), 2);
+  bmpHeader.fileSize = istream_read_uint32_le(inputStream);
+  bmpHeader.reserved0 = istream_read_uint32_le(inputStream);
+  bmpHeader.bitmapDataOffset = istream_read_uint32_le(inputStream);
+  bmpHeader.bitmapHeaderSize = istream_read_uint32_le(inputStream);
+  bmpHeader.width = istream_read_uint32_le(inputStream);
+  bmpHeader.height = istream_read_uint32_le(inputStream);
+  bmpHeader.planes = istream_read_uint16_le(inputStream);
+  bmpHeader.bitsPerPixel = istream_read_uint16_le(inputStream);
+  bmpHeader.compression = istream_read_uint32_le(inputStream);
+  bmpHeader.bitmapDataSize = istream_read_uint32_le(inputStream);
+  bmpHeader.hRes = istream_read_uint32_le(inputStream);
+  bmpHeader.vRes = istream_read_uint32_le(inputStream);
+  bmpHeader.colors = istream_read_uint32_le(inputStream);
+  bmpHeader.importantColors = istream_read_uint32_le(inputStream);
+
+  if (bmpHeader.bitsPerPixel == 8)
+  {
+    int paletteSize = bmpHeader.colors * 4;
+    inputStream.read(reinterpret_cast<byte*>(bmpHeader.palette), paletteSize);
+  }
+
+  if (bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M')
+  {
+    globalErrorStream() << "LoadBMP: only Windows-style BMP files supported\n";
+    return 0;
+  }
+  if (bmpHeader.fileSize != length)
+  {
+    globalErrorStream() << "LoadBMP: header size does not match file size (" << Unsigned(bmpHeader.fileSize) << " vs. " << Unsigned(length) << ")\n";
+    return 0;
+  }
+  if (bmpHeader.compression != 0)
+  {
+    globalErrorStream() << "LoadBMP: only uncompressed BMP files supported\n";
+    return 0;
+  }
+  if (bmpHeader.bitsPerPixel < 8)
+  {
+    globalErrorStream() << "LoadBMP: monochrome and 4-bit BMP files not supported\n";
+    return 0;
+  }
+
+  int columns = bmpHeader.width;
+  int rows = bmpHeader.height;
+  if (rows < 0)
+    rows = -rows;
+
+  RGBAImage* image = new RGBAImage(columns, rows);
+
+  switch(bmpHeader.bitsPerPixel)
+  {
+  case 8:
+    ReadBMP(inputStream, image->getRGBAPixels(), rows, columns, ReadPixel8(bmpHeader.palette));
+    break;
+  case 16:
+    ReadBMP(inputStream, image->getRGBAPixels(), rows, columns, ReadPixel16());
+    break;
+  case 24:
+    ReadBMP(inputStream, image->getRGBAPixels(), rows, columns, ReadPixel24());
+    break;
+  case 32:
+    ReadBMP(inputStream, image->getRGBAPixels(), rows, columns, ReadPixel32());
+    break;
+  default:
+    globalErrorStream() << "LoadBMP: illegal pixel_size '" << bmpHeader.bitsPerPixel << "'\n";
+    image->release();
+    return 0;
+  }
+  return image;
+}
+
+Image* LoadBMP(ArchiveFile& file)
+{
+  ScopedArchiveBuffer buffer(file);
+  PointerInputStream inputStream(buffer.buffer);
+  return LoadBMPBuff(inputStream, buffer.length);
+}