METHODDEF(void) my_skip_input_data ( j_decompress_ptr cinfo, long num_bytes )
{
my_src_ptr src = (my_src_ptr) cinfo->src;
METHODDEF(void) my_skip_input_data ( j_decompress_ptr cinfo, long num_bytes )
{
my_src_ptr src = (my_src_ptr) cinfo->src;
cinfo->src = (struct jpeg_source_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_source_mgr));
cinfo->src = (struct jpeg_source_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_source_mgr));
src->buffer = (JOCTET *) malloc (infile.GetSize());
src->pub.next_input_byte = src->buffer; /* until buffer loaded */
infile.Read(src->buffer, infile.GetSize());
src->buffer = (JOCTET *) malloc (infile.GetSize());
src->pub.next_input_byte = src->buffer; /* until buffer loaded */
infile.Read(src->buffer, infile.GetSize());
src->pub.init_source = my_init_source;
src->pub.fill_input_buffer = my_fill_input_buffer;
src->pub.skip_input_data = my_skip_input_data;
src->pub.init_source = my_init_source;
src->pub.fill_input_buffer = my_fill_input_buffer;
src->pub.skip_input_data = my_skip_input_data;
jpeg_read_header( &cinfo, TRUE );
cinfo.out_color_space = JCS_RGB;
jpeg_start_decompress( &cinfo );
jpeg_read_header( &cinfo, TRUE );
cinfo.out_color_space = JCS_RGB;
jpeg_start_decompress( &cinfo );
image->Create( cinfo.image_width, cinfo.image_height );
if (!image->Ok()) {
jpeg_finish_decompress( &cinfo );
image->Create( cinfo.image_width, cinfo.image_height );
if (!image->Ok()) {
jpeg_finish_decompress( &cinfo );
stride = cinfo.output_width * 3;
tempbuf = (*cinfo.mem->alloc_sarray)
((j_common_ptr) &cinfo, JPOOL_IMAGE, stride, 1 );
stride = cinfo.output_width * 3;
tempbuf = (*cinfo.mem->alloc_sarray)
((j_common_ptr) &cinfo, JPOOL_IMAGE, stride, 1 );
while ( cinfo.output_scanline < cinfo.output_height ) {
jpeg_read_scanlines( &cinfo, tempbuf, 1 );
memcpy( ptr, tempbuf[0], stride );
while ( cinfo.output_scanline < cinfo.output_height ) {
jpeg_read_scanlines( &cinfo, tempbuf, 1 );
memcpy( ptr, tempbuf[0], stride );
METHODDEF(void) init_destination (j_compress_ptr cinfo)
{
my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
METHODDEF(void) init_destination (j_compress_ptr cinfo)
{
my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
/* Allocate the output buffer --- it will be released when done with image */
dest->buffer = (JOCTET *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
/* Allocate the output buffer --- it will be released when done with image */
dest->buffer = (JOCTET *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
METHODDEF(boolean) empty_output_buffer (j_compress_ptr cinfo)
{
my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
METHODDEF(boolean) empty_output_buffer (j_compress_ptr cinfo)
{
my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
dest->stream->Write(dest->buffer, OUTPUT_BUF_SIZE);
dest->pub.next_output_byte = dest->buffer;
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
dest->stream->Write(dest->buffer, OUTPUT_BUF_SIZE);
dest->pub.next_output_byte = dest->buffer;
dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
cinfo->dest = (struct jpeg_destination_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_destination_mgr));
}
cinfo->dest = (struct jpeg_destination_mgr *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof(my_destination_mgr));
}
dest = (my_dest_ptr) cinfo->dest;
dest->pub.init_destination = init_destination;
dest->pub.empty_output_buffer = empty_output_buffer;
dest = (my_dest_ptr) cinfo->dest;
dest->pub.init_destination = init_destination;
dest->pub.empty_output_buffer = empty_output_buffer;
jpeg_create_compress(&cinfo);
jpeg_wxio_dest(&cinfo, stream);
jpeg_create_compress(&cinfo);
jpeg_wxio_dest(&cinfo, stream);
cinfo.image_width = image->GetWidth();
cinfo.image_height = image->GetHeight();
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_start_compress(&cinfo, TRUE);
cinfo.image_width = image->GetWidth();
cinfo.image_height = image->GetHeight();
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_start_compress(&cinfo, TRUE);
image_buffer = image->GetData();
while (cinfo.next_scanline < cinfo.image_height) {
row_pointer[0] = &image_buffer[cinfo.next_scanline * stride];
image_buffer = image->GetData();
while (cinfo.next_scanline < cinfo.image_height) {
row_pointer[0] = &image_buffer[cinfo.next_scanline * stride];
stream.Read(&hdr, 2);
stream.SeekI(-2, wxFromCurrent);
return (hdr[0] == 0xFF && hdr[1] == 0xD8);
}
stream.Read(&hdr, 2);
stream.SeekI(-2, wxFromCurrent);
return (hdr[0] == 0xFF && hdr[1] == 0xD8);
}