Function parseIcon

source/ui/utils/readIcons.cpp:368–463

}

std::shared_ptr<U8[]> parseIcon(BReadFile& f, IconInfo& info, int* width, int* height) {
    U32 palette[256];
    f.setPos(info.fileOffset+sizeof(BitmapInfoHeader));
    readPalette(info.bih, f, palette);
    info.bih.biHeight/=2;
    std::shared_ptr<U8[]> color = loadData(info.bih, f);
    U8* pColor = color.get();
    int bpp = info.bih.biBitCount;
	info.bih.biBitCount = 1;
    std::shared_ptr<U8[]> maskData = loadData(info.bih, f);
    U8* pMaskData = maskData.get();

    if (bpp==32) {
        swapRGB(color.get(), info.bih.biWidth, info.bih.biHeight);
        *width = info.bih.biWidth;
        *height = info.bih.biHeight;
        return color;
    } else if (bpp==4) {
        int maskStride = (info.bih.biWidth + 31) / 32 * 4;
        *width = info.bih.biWidth;
        *height = info.bih.biHeight;
        std::shared_ptr<U8[]> result = std::make_shared<U8[]>(info.bih.biWidth * info.bih.biHeight * 4);
        U8* pResult = result.get();
        for (int y=0;y<info.bih.biHeight;y++) {
            for (int x=0;x<info.bih.biWidth;x++) {
                int maskIndex = y * maskStride + x / 8;
                int index = y*info.bih.biWidth*4+x*4;
                U32 byteIndex = y*info.bih.biWidth+x;
                U8 paletteIndex = pColor[byteIndex/2];
                if (byteIndex & 1) {
                    paletteIndex = paletteIndex & 0xF;
                } else {
                    paletteIndex = (paletteIndex >> 4) & 0xF;                    
                }
                U32 c = palette[paletteIndex];
                pResult[index+2] = c & 0xFF;
                pResult[index+1] = (c >> 8) & 0xFF;
                pResult[index] = (c >> 16) & 0xFF;
                if (pMaskData[maskIndex] & (1 << (7-(x % 8)))) {
                    pResult[index+3] = 0;
                } else {
                    pResult[index+3] = 0xFF;
                }
            }
        }
        return result;
    } else if (bpp==8) {
        int maskStride = (info.bih.biWidth + 31) / 32 * 4;
        *width = info.bih.biWidth;
        *height = info.bih.biHeight;
        std::shared_ptr<U8[]> result = std::make_shared<U8[]>(info.bih.biWidth * info.bih.biHeight * 4);
        U8* pResult = result.get();
        for (int y=0;y<info.bih.biHeight;y++) {
            for (int x=0;x<info.bih.biWidth;x++) {
                int maskIndex = y * maskStride + x / 8;
                int index = y*info.bih.biWidth*4+x*4; // index into 32-bit result
                int byteIndex = y*info.bih.biWidth+x; // index into icon
                U32 c = palette[pColor[byteIndex]];