RG16表示RGB565 2.2 video图层输出smpte彩条,颜色空间为NV12 具体指令如下所示: modetest -M canaan-drm -D 0 -a -s 38@36:1080x1920-30 -P 31@36:1080x1920@NV12 -v -F smpte 下图所示为LCD显示内容: 2.3 OSD图层输出tiles彩条,颜色空间为AR24,即ARGB8888 具体指令如下 modetest -M canaan-drm -D...
DRM_FORMAT_BIG_ENDIAN)#defineDRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_BGRX8888#defineDRM_FORMAT_HOST_ARGB8888 DRM_FORMAT_BGRA8888#else#defineDRM_FORMAT_HOST_XRGB1555 DRM_FORMAT_XRGB1555#defineDRM_FORMAT_HOST_RGB565 DRM_FORMAT_RGB565#defineDRM_FORMAT_HOST_XRGB8888 DRM_FORMAT_XRGB8888#defineDRM_FOR...
format = DRM_FORMAT_RGB565; break; case 24: case 32: handles[0] = bo->handle; pitches[0] = bo->pitch; format = DRM_FORMAT_XRGB8888; break; } ret = drmModeAddFB2(dev->fd, width, height, format, handles, pitches, offsets, (uint32_t *)&bo->fb_id, 0); ...
DRM_FORMAT_ prefix. The actually supported pixel formats depend on the DRM driver and hardware, and the renderer used. Using Pixman-renderer, DRM-backend supportsxrgb8888,xrgb2101010,rgb565and some of their permutations. The formats supported with GL-renderer depend on the EGL and OpenGL ES 2 ...
* convert this image to RGB565. I could convert it easily by hand but maybe DRM driver is able to return an array on this format. Scenario 2: The display will be allways controlled by LCDC in LIDD mode through an extenal display driver, raster mode is never used. I made a f...
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支持多种显存格式(ARGB888, RGB565, 包括GPU输出的tile格式以及fbdc压缩格式)等 支持生成时序信号如tcon,送给如lvds或者mipi等接口。 支持多种分辨率 为什么要介绍显示处理器的功能?因为DRM驱动就是为了实现这些功能的软件实现。 各家芯片厂商显示处理器实现各有不同,但均有如下两个重要的部件:多个layer、负责图层合成...
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{ .width = 304, .height = 228, }, .bus_format = MEDIA_BUS_FMT_RGB565_1X16, }; static const struct drm_display_mode shelly_sca07010_bfn_lnn_mode = { .clock = 33300, .hdisplay = 800, .hsync_start = 800 + 1, .hsync_end = 800 + 1 + 64, .htotal = 8...
{ .width = 42, .height = 28, }, .bus_format = MEDIA_BUS_FMT_RGB565_1X16, .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE | DRM_BUS_FLAG_SHARP_SIGNALS, }; static const struct drm_display_mode shelly_sca07010_bfn_lnn_mode = { .clock...