void writePNG(const QImage& image)
{
info_ptr->channels = 4;
png_set_sig_bytes(png_ptr, 8); // Pretend we already wrote the sig
png_set_IHDR(png_ptr, info_ptr, image.width(), image.height(),
8, image.hasAlphaBuffer()
? PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
0, 0, 0);
png_write_info(png_ptr, info_ptr);
if ( !image.hasAlphaBuffer() )
png_set_filler(png_ptr, 0,
QImage::systemByteOrder() == QImage::BigEndian ?
PNG_FILLER_BEFORE : PNG_FILLER_AFTER);
//if ( QImage::systemByteOrder() == QImage::BigEndian ) {
//png_set_swap_alpha(png_ptr);
//}
if ( QImage::systemByteOrder() == QImage::LittleEndian ) {
png_set_bgr(png_ptr);
}
png_bytep* row_pointers;
uint height = image.height();
uchar** jt = image.jumpTable();
row_pointers=new png_bytep[height];
uint y;
for (y=0; y<height; y++) {
row_pointers[y]=jt[y];
}
png_write_image(png_ptr, row_pointers);
delete [] row_pointers;
png_write_end(png_ptr, info_ptr);
end_png();
begin_png();
}
void writePNG(const QImage& image)
{
#ifndef QT_LSB
// LSB disallows accessing the info_ptr directly. LSB's png_set_IHDR sets
// the channels anyways, so just comment it out for LSB usage
info_ptr->channels = 4;
#endif
png_set_sig_bytes(png_ptr, 8); // Pretend we already wrote the sig
png_set_IHDR(png_ptr, info_ptr, image.width(), image.height(),
8, image.hasAlphaChannel()
? PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
0, 0, 0);
png_write_info(png_ptr, info_ptr);
if (!image.hasAlphaChannel())
png_set_filler(png_ptr, 0,
QSysInfo::ByteOrder == QSysInfo::BigEndian ?
PNG_FILLER_BEFORE : PNG_FILLER_AFTER);
//if ( QImage::systemByteOrder() == QImage::BigEndian ) {
//png_set_swap_alpha(png_ptr);
//}
if (QSysInfo::ByteOrder == QSysInfo::LittleEndian) {
png_set_bgr(png_ptr);
}
int height = image.height();
png_bytep *row_pointers = new png_bytep[height];
for (int i = 0; i < height; ++i)
row_pointers[i] = (png_bytep)image.scanLine(i);
png_write_image(png_ptr, row_pointers);
delete [] row_pointers;
png_write_end(png_ptr, info_ptr);
end_png();
begin_png();
}
QAnimationWriterMNG(QIODevice* d) : QAnimationWriterData(d)
{
first = TRUE;
begin_png();
}
