void dumpTGA(const Common::UString &fileName, const byte *data, int width, int height, PixelFormat format) {
if ((width <= 0) || (height <= 0) || !data)
throw Common::Exception("Invalid image data (%dx%d %d)", width, height, data != 0);
Common::WriteFile file;
if (!file.open(fileName))
throw Common::Exception(Common::kOpenError);
file.writeByte(0); // ID Length
file.writeByte(0); // Palette size
file.writeByte(2); // Unmapped RGB
file.writeUint32LE(0); // Color map
file.writeByte(0); // Color map
file.writeUint16LE(0); // X
file.writeUint16LE(0); // Y
file.writeUint16LE(width);
file.writeUint16LE(height);
file.writeByte(32); // Pixel depths
file.writeByte(0);
uint32 count = width * height;
for (uint32 i = 0; i < count; i++)
writePixel(file, data, format);
file.close();
}
static void writePixel(Common::WriteFile &file, const byte *&data, PixelFormat format) {
if (format == kPixelFormatRGB) {
file.writeByte(data[2]);
file.writeByte(data[1]);
file.writeByte(data[0]);
file.writeByte(0xFF);
data += 3;
} else if (format == kPixelFormatBGR) {
file.writeByte(data[0]);
file.writeByte(data[1]);
file.writeByte(data[2]);
file.writeByte(0xFF);
data += 3;
} else if (format == kPixelFormatRGBA) {
file.writeByte(data[2]);
file.writeByte(data[1]);
file.writeByte(data[0]);
file.writeByte(data[3]);
data += 4;
} else if (format == kPixelFormatBGRA) {
file.writeByte(data[0]);
file.writeByte(data[1]);
file.writeByte(data[2]);
file.writeByte(data[3]);
data += 4;
} else
throw Common::Exception("Unsupported pixel format: %d", (int) format);
}
static Common::WriteStream *openTGA(const Common::UString &fileName, int width, int height) {
Common::WriteFile *file = new Common::WriteFile(fileName);
file->writeByte(0); // ID Length
file->writeByte(0); // Palette size
file->writeByte(2); // Unmapped RGB
file->writeUint32LE(0); // Color map
file->writeByte(0); // Color map
file->writeUint16LE(0); // X
file->writeUint16LE(0); // Y
file->writeUint16LE(width);
file->writeUint16LE(height);
file->writeByte(32); // Pixel depths
file->writeByte(0);
return file;
}