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src/Source/FreeImage/PluginJ2K.cpp  view on Meta::CPAN

			c_codec = opj_create_compress(OPJ_CODEC_J2K);

			// configure the event callbacks
			// catch events using our callbacks (no local context needed here)
			opj_set_info_handler(c_codec, NULL, NULL);
			opj_set_warning_handler(c_codec, j2k_warning_callback, NULL);
			opj_set_error_handler(c_codec, j2k_error_callback, NULL);

			// setup the encoder parameters using the current image and using user parameters
			opj_setup_encoder(c_codec, &parameters, image);

			// encode the image
			bSuccess = opj_start_compress(c_codec, image, c_stream);
			if(bSuccess) {
				bSuccess = bSuccess && opj_encode(c_codec, c_stream);
				if(bSuccess) {
					bSuccess = bSuccess && opj_end_compress(c_codec, c_stream);
				}
			}
			if (!bSuccess) {
				throw "Failed to encode image";
			}

			// free remaining compression structures
			opj_destroy_codec(c_codec);
			
			// free image data
			opj_image_destroy(image);

			return TRUE;

		} catch (const char *text) {
			if(c_codec) opj_destroy_codec(c_codec);
			if(image) opj_image_destroy(image);
			FreeImage_OutputMessageProc(s_format_id, text);
			return FALSE;
		}
	}

	return FALSE;
}

// ==========================================================
//   Init
// ==========================================================

void DLL_CALLCONV
InitJ2K(Plugin *plugin, int format_id) {
	s_format_id = format_id;

	plugin->format_proc = Format;
	plugin->description_proc = Description;
	plugin->extension_proc = Extension;
	plugin->regexpr_proc = RegExpr;
	plugin->open_proc = Open;
	plugin->close_proc = Close;
	plugin->pagecount_proc = NULL;
	plugin->pagecapability_proc = NULL;
	plugin->load_proc = Load;
	plugin->save_proc = Save;
	plugin->validate_proc = Validate;
	plugin->mime_proc = MimeType;
	plugin->supports_export_bpp_proc = SupportsExportDepth;
	plugin->supports_export_type_proc = SupportsExportType;
	plugin->supports_icc_profiles_proc = NULL;
}