git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32416
c3d73ce0-8a6f-49c7-b76d-
6d57e0e08775
+ if ( iBitDepth == 16 )
+ iElements *= 2;
+
png_set_sBIT( png_ptr, info_ptr, &sig_bit );
png_write_info( png_ptr, info_ptr );
png_set_shift( png_ptr, &sig_bit );
png_set_sBIT( png_ptr, info_ptr, &sig_bit );
png_write_info( png_ptr, info_ptr );
png_set_shift( png_ptr, &sig_bit );
case wxPNG_TYPE_COLOUR:
*pData++ = uchRed;
case wxPNG_TYPE_COLOUR:
*pData++ = uchRed;
*pData++ = 0;
*pData++ = uchGreen;
*pData++ = 0;
*pData++ = uchGreen;
*pData++ = 0;
*pData++ = uchBlue;
*pData++ = 0;
*pData++ = uchBlue;
*pData++ = 0;
break;
case wxPNG_TYPE_GREY:
{
*pData++ = 0;
break;
case wxPNG_TYPE_GREY:
{
+ // where do these coefficients come from? maybe we
+ // should have image options for them as well?
unsigned uiColor =
(unsigned) (76.544*(unsigned)uchRed +
150.272*(unsigned)uchGreen +
36.864*(unsigned)uchBlue);
unsigned uiColor =
(unsigned) (76.544*(unsigned)uchRed +
150.272*(unsigned)uchGreen +
36.864*(unsigned)uchBlue);
- uiColor >>= (16 - iBitDepth);
- if (iBitDepth > 8)
- {
- *pData++ = (unsigned char)((uiColor >> 8) & 0xFF);
- *pData++ = (unsigned char)(uiColor & 0xFF);
- } else {
+
+ *pData++ = (unsigned char)((uiColor >> 8) & 0xFF);
+ if ( iBitDepth == 16 )
*pData++ = (unsigned char)(uiColor & 0xFF);
*pData++ = (unsigned char)(uiColor & 0xFF);
}
break;
case wxPNG_TYPE_GREY_RED:
*pData++ = uchRed;
}
break;
case wxPNG_TYPE_GREY_RED:
*pData++ = uchRed;