drm: virtio: add virtio_gpu_translate_format
Factors out code, no functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403070845.10793-2-kraxel@redhat.com
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 1ff9c64..372c91c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -42,6 +42,74 @@ static const uint32_t virtio_gpu_cursor_formats[] = {
DRM_FORMAT_ARGB8888,
};
+uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc)
+{
+ uint32_t format;
+
+ switch (drm_fourcc) {
+#ifdef __BIG_ENDIAN
+ case DRM_FORMAT_XRGB8888:
+ format = VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM;
+ break;
+ case DRM_FORMAT_ARGB8888:
+ format = VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM;
+ break;
+ case DRM_FORMAT_BGRX8888:
+ format = VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM;
+ break;
+ case DRM_FORMAT_BGRA8888:
+ format = VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM;
+ break;
+ case DRM_FORMAT_RGBX8888:
+ format = VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM;
+ break;
+ case DRM_FORMAT_RGBA8888:
+ format = VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM;
+ break;
+ case DRM_FORMAT_XBGR8888:
+ format = VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM;
+ break;
+ case DRM_FORMAT_ABGR8888:
+ format = VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM;
+ break;
+#else
+ case DRM_FORMAT_XRGB8888:
+ format = VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM;
+ break;
+ case DRM_FORMAT_ARGB8888:
+ format = VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM;
+ break;
+ case DRM_FORMAT_BGRX8888:
+ format = VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM;
+ break;
+ case DRM_FORMAT_BGRA8888:
+ format = VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM;
+ break;
+ case DRM_FORMAT_RGBX8888:
+ format = VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM;
+ break;
+ case DRM_FORMAT_RGBA8888:
+ format = VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM;
+ break;
+ case DRM_FORMAT_XBGR8888:
+ format = VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM;
+ break;
+ case DRM_FORMAT_ABGR8888:
+ format = VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM;
+ break;
+#endif
+ default:
+ /*
+ * This should not happen, we handle everything listed
+ * in virtio_gpu_formats[].
+ */
+ format = 0;
+ break;
+ }
+ WARN_ON(format == 0);
+ return format;
+}
+
static void virtio_gpu_plane_destroy(struct drm_plane *plane)
{
drm_plane_cleanup(plane);