// decode image data to a series of frames, ignoring all the other bits & pieces
bool MCImageDecode(IO_handle p_stream, MCImageFrame *&r_frames, uindex_t &r_frame_count)
{
bool t_success = true;
MCImageFrame *t_frames = nil;
uindex_t t_frame_count = 0;
MCImageBitmap *t_bitmap = nil;
MCImageCompressedBitmap *t_compressed = nil;
MCPoint t_hotspot;
char *t_name = nil;
if (t_success)
t_success = MCImageImport(p_stream, nil, t_hotspot, t_name, t_compressed, t_bitmap);
if (t_success)
{
if (t_compressed != nil)
t_success = MCImageDecompress(t_compressed, r_frames, r_frame_count);
else
{
t_success = MCMemoryNewArray(1, r_frames);
if (t_success)
{
r_frames[0].image = t_bitmap;
t_bitmap = nil;
r_frame_count = 1;
}
}
}
MCImageFreeCompressedBitmap(t_compressed);
MCImageFreeBitmap(t_bitmap);
MCCStringFree(t_name);
return t_success;
}
bool MCEncodedImageRep::LoadImageFrames(MCImageFrame *&r_frames, uindex_t &r_frame_count, bool &r_frames_premultiplied)
{
bool t_success = true;
// IM-2013-02-18 - switching this back to using MCImageImport as we need to
// determine the compression type for m_compression
IO_handle t_stream = nil;
IO_handle t_mask_stream = nil;
MCImageCompressedBitmap *t_compressed = nil;
MCImageBitmap *t_bitmap = nil;
MCPoint t_hotspot = {1, 1};
char *t_name = nil;
t_success = GetDataStream(t_stream) &&
MCImageImport(t_stream, t_mask_stream, t_hotspot, t_name, t_compressed, t_bitmap);
if (t_stream != nil)
MCS_close(t_stream);
MCImageFrame *t_frames;
t_frames = nil;
uindex_t t_frame_count;
t_frame_count = 0;
if (t_success)
{
if (t_compressed != nil)
t_success = MCImageDecompress(t_compressed, t_frames, t_frame_count);
else
{
t_success = MCMemoryNewArray(1, t_frames);
if (t_success)
{
t_frames[0].image = t_bitmap;
t_frames[0].density = 1.0;
t_bitmap = nil;
t_frame_count = 1;
}
}
}
if (t_success)
{
m_width = t_frames[0].image->width;
m_height = t_frames[0].image->height;
if (t_compressed != nil)
m_compression = t_compressed->compression;
m_have_geometry = true;
r_frames = t_frames;
r_frame_count = t_frame_count;
r_frames_premultiplied = false;
}
MCCStringFree(t_name);
MCImageFreeBitmap(t_bitmap);
MCImageFreeCompressedBitmap(t_compressed);
return t_success;
}
