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];
+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;
+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;
- }
+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 {
+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;
- }
+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 {
+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;
- }
+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 {
+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];
- }
+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);
- }
- }
+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* 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);
+Image* LoadBMP( ArchiveFile& file ){
+ ScopedArchiveBuffer buffer( file );
+ PointerInputStream inputStream( buffer.buffer );
+ return LoadBMPBuff( inputStream, buffer.length );
}
projects / xonotic / netradiant.git / blobdiff