Function msSaveImageBuffer

maputil.c:818–843

*/

unsigned char *msSaveImageBuffer(imageObj* image, int *size_ptr, outputFormatObj *format)
{
    *size_ptr = 0;
    if( MS_RENDERER_PLUGIN(image->format)){
        rasterBufferObj data;
        rendererVTableObj *renderer = image->format->vtable;
        if(renderer->supports_pixel_buffer) {
            bufferObj buffer;
            msBufferInit(&buffer);
            renderer->getRasterBufferHandle(image,&data);
            msSaveRasterBufferToBuffer(&data,&buffer,format);
            *size_ptr = buffer.size;
            return buffer.data;
            //don't free the bufferObj as we don't own the bytes anymore
        } else {
            /* check if the renderer supports native buffer output */
            if (renderer->saveImageBuffer)
                return renderer->saveImageBuffer(image, size_ptr, format);

	        msSetError(MS_MISCERR, "Unsupported image type", "msSaveImageBuffer()");
            return NULL;
        }
    }
	msSetError(MS_MISCERR, "Unsupported image type", "msSaveImage()");
    return NULL;
}

/**
 * Generic function to free the imageObj