Hi, On Fri, 28 Aug 2020 10:44:55 +0000 Trommel, Kees (Contractor) kees.trommel.contrac...@draeger.com wrote:
> Hi Agust, > > The latest version of the U-Boot does not support conversion from > 24BPP BMP to a 16BPP 565RGB encoded frame buffer. It uses always > 555RGB encoding (see function video_bmp_display in video_bmp.c). > Older versions of the U-Boot (e.g. 2015.04) supported this because > the platform specific device driver passed not only the BPP but > also the encoding. in recent U-Boot we do not use old cfb_console driver which supported 24bpp bitmaps. The DM video console driver still dosn't support some framebuffer/bitmap BPP combinations, or maybe your board config file does not define CONFIG_BMP_24BPP. > Do you know whether this lost support was done on purpose > or lost by accident? This is probably due to DM video conversion, not all BPP variants have been implemented with this yet. > I encountered this issue when trying to display a 24BPP BMP > splash screen at an i.MX6 platform. Did you define CONFIG_BMP_24BPP in your board config file? If not, could you do so and test the result? Thanks. -- Anatolij
