drm/omap: Add 'alpha' and 'pixel blend mode' plane properties (3037e0c5) · Commits · 戴 / test

Add the following properties for planes: * alpha * pixel blend mode. Only "Pre-multiplied" and "Coverage" are supported Signed-off-by:

drivers/gpu/drm/omapdrm/omap_plane.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -53,8 +53,12 @@ static void omap_plane_atomic_update(struct drm_plane *plane,
		memset(&info, 0, sizeof(info));
		info.rotation_type = OMAP_DSS_ROT_NONE;
		info.rotation = DRM_MODE_ROTATE_0;
		info.global_alpha = 0xff;
		info.global_alpha = state->alpha >> 8;
		info.zorder = state->normalized_zpos;
		if (state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
		info.pre_mult_alpha = 1;
		else
		info.pre_mult_alpha = 0;

		/* update scanout: */
		omap_framebuffer_update_scanout(state->fb, state, &info);
		@@ -285,6 +289,9 @@ struct drm_plane omap_plane_init(struct drm_device dev,

		omap_plane_install_properties(plane, &plane->base);
		drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
		drm_plane_create_alpha_property(plane);
		drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) \|
		BIT(DRM_MODE_BLEND_COVERAGE));

		return plane;