freetype – render freetype glyph on windows

       
 hdc = BeginPaint(hWnd, &ps);        assert(Draw());        FT_GlyphSlot &pBm = m_face->glyph;        //output by console        {            printf("\n");            for (int j = 0; j < pBm->bitmap.rows; j++) {                printf("\n");                for (int i = 0; i < pBm->bitmap.width; i++)                     printf("%2x", pBm->bitmap.buffer[j * pBm->bitmap.width + i]);            }        }        //output by gdi+        {            Bitmap *pBitmap = NULL;            LPBYTE pBuffer = NULL;                  int stride = (pBm->bitmap.pitch + 3) / 4 * 4;            if (stride != pBm->bitmap.pitch)            {                pBuffer = new BYTE[stride * pBm->bitmap.rows];                memset(pBuffer, 0, stride * pBm->bitmap.rows);                for (int i = 0; i < pBm->bitmap.rows; i++)                    for (int j = 0; j < pBm->bitmap.width; j++)                        pBuffer[i * stride + j] = pBm->bitmap.buffer[i * pBm->bitmap.width + j];            } else            {                pBuffer = pBm->bitmap.buffer;            }            pBitmap = new Bitmap(pBm->bitmap.width, pBm->bitmap.rows, stride, PixelFormat8bppIndexed, pBuffer);            ColorPalette *pPalette = (ColorPalette*)malloc(sizeof(ColorPalette) + 255 * sizeof(ARGB));            pPalette->Count = 256;            pPalette->Flags = PaletteFlagsGrayScale;            ARGB* pColor = &pPalette->Entries[0];            for (int i = 0; i < 256; i++)                pColor[i] = Color::MakeARGB(i, 0x00, 0x00, 0x00);            assert(pBitmap->GetLastStatus() == Ok);            pBitmap->SetPalette(pPalette);            assert(pBitmap->GetLastStatus() == Ok);            Graphics graphics(hdc);            graphics.DrawImage(pBitmap, 300, 300);            free(pPalette);            delete pBitmap;            //draw with gdi            {                BITMAPINFO* pBmi = (BITMAPINFO*)malloc(sizeof(BITMAPINFO) + sizeof(RGBQUAD) * 255);                memset(pBmi, 0, sizeof(BITMAPINFO));                BITMAPINFOHEADER &bmh = pBmi->bmiHeader;                bmh.biSize = sizeof(BITMAPINFOHEADER);                bmh.biBitCount = 8;                bmh.biCompression = BI_RGB;                bmh.biPlanes = 1;                RGBQUAD* palette = &pBmi->bmiColors[0];                for (int i = 0; i < 256; ++i)                 {                    RGBQUAD rgb = {0};                    rgb.rgbRed =  ~i;                    rgb.rgbGreen =  ~i;                    rgb.rgbBlue =  ~i;                    palette[i] = rgb;                }                bmh.biWidth = stride;                bmh.biHeight =  - pBm->bitmap.rows;                StretchDIBits(hdc, 200, 200, stride, pBm->bitmap.rows, 0, 0, stride, pBm->bitmap.rows, pBuffer,                     pBmi, DIB_RGB_COLORS, SRCCOPY);                if (pBmi)                    free(pBmi);                if (pBuffer != pBm->bitmap.buffer)                    delete [] pBuffer;                /*bmh.biWidth = pBm->bitmap.width;                bmh.biHeight =  - pBm->bitmap.rows;                StretchDIBits(hdc, 200, 200, pBm->bitmap.width, pBm->bitmap.rows, 0, 0, pBm->bitmap.width, pBm->bitmap.rows, pBm->bitmap.buffer,                     pBmi, DIB_PAL_COLORS, SRCCOPY);*/            }        }        EndPaint(hWnd, &ps);