805         return 2;

   805         return 2;

   806     case M3G_RGB8:

   806     case M3G_RGB8:

   807         return 3;

   807         return 3;

   808     case M3G_RGBA8:

   808     case M3G_RGBA8:

   809     case M3G_BGRA8:

   809     case M3G_BGRA8:

   810     case M3G_BGR8_32:

   811     case M3G_BGR8_32:

   811     case M3G_RGB8_32:

   812     case M3G_RGB8_32:

   812         return 4;

   813         return 4;

   813     default:

   814     default:

   814         M3G_ASSERT(M3G_FALSE);

   815         M3G_ASSERT(M3G_FALSE);

   839     M3Guint dstBpp = m3gBytesPerPixel(dstFormat);

   840     M3Guint dstBpp = m3gBytesPerPixel(dstFormat);

   840     M3G_ASSERT(srcBpp > 0 && dstBpp > 0);

   841     M3G_ASSERT(srcBpp > 0 && dstBpp > 0);

   841 

   842 

   842     while (count > 0) {

   843     while (count > 0) {

   843         M3Gsizei n = (count < SPAN_BUFFER_SIZE) ? count : SPAN_BUFFER_SIZE;

   844         M3Gsizei n = (count < SPAN_BUFFER_SIZE) ? count : SPAN_BUFFER_SIZE;

   846         count -= SPAN_BUFFER_SIZE; /* \note may go negative */

   853         count -= SPAN_BUFFER_SIZE; /* \note may go negative */

   847         src += n * srcBpp;

   854         src += n * srcBpp;

   848         dst += n * dstBpp;

   855         dst += n * dstBpp;

   849     }

   856     }

   850 }

   857 }

  1250         

  1257         

  1251         {

  1258         {

  1252             /* Allocate pixel & palette data; the palette is stored at

  1259             /* Allocate pixel & palette data; the palette is stored at

  1253              * the beginning of the pixel data chunk */

  1260              * the beginning of the pixel data chunk */

  1254 

  1261 

  1256             M3Gbool paletted = ((img->flags & M3G_PALETTED) != 0)

  1262             M3Gbool paletted = ((img->flags & M3G_PALETTED) != 0)

  1257                 && m3gSupportedPaletteFormat(srcFormat);

  1263                 && m3gSupportedPaletteFormat(srcFormat);

  1258             M3GPixelFormat internalFormat = getInternalFormat(srcFormat,

  1264             M3GPixelFormat internalFormat = getInternalFormat(srcFormat,

  1259                                                               paletted);

  1265                                                               paletted);

  1260             M3Guint bpp = m3gBytesPerPixel(internalFormat);

  1266             M3Guint bpp = m3gBytesPerPixel(internalFormat);