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drm/rockchip: vop2: The data from cluster mix is always premultiplied alpha

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Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: Icf107d31f9fb04cf612a02a0127d66448d8f7ed1
This commit is contained in:
Sandy Huang
2024-04-30 11:56:09 +08:00
committed by Tao Huang
parent 727394f2d9
commit 060f786e9b
1 changed files with 24 additions and 2 deletions
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26
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@@ -10151,12 +10151,23 @@ static void vop2_setup_alpha(struct vop2_video_port *vp,
pixel_alpha_en = is_alpha_support(fb->format->format);
alpha_config.src_premulti_en = premulti_en;
if (bottom_layer_alpha_en && i == 1) {/* Cd = Cs + (1 - As) * Cd * Agd */
if (bottom_layer_alpha_en && i == 1) {
/**
* The data from cluster mix is always premultiplied alpha;
* cluster layer or esmart layer[premulti_en = 1]
* Cd = Cs + (1 - As) * Cd * Agd
* esmart layer[premulti_en = 0]
* Cd = As * Cs + (1 - As) * Cd * Agd
**/
if (vop2_cluster_window(win))
alpha_config.src_premulti_en = true;
alpha_config.dst_premulti_en = false;
alpha_config.src_pixel_alpha_en = pixel_alpha_en;
alpha_config.src_glb_alpha_value = vpstate->global_alpha;
alpha_config.dst_glb_alpha_value = dst_global_alpha;
} else if (vop2_cluster_window(win)) {/* Mix output data only have pixel alpha */
/* The data from cluster mix is always premultiplied alpha */
alpha_config.src_premulti_en = true;
alpha_config.dst_premulti_en = true;
alpha_config.src_pixel_alpha_en = true;
alpha_config.src_glb_alpha_value = 0xff;
@@ -10381,12 +10392,23 @@ static void vop3_setup_alpha(struct vop2_video_port *vp,
pixel_alpha_en = is_alpha_support(fb->format->format);
alpha_config.src_premulti_en = premulti_en;
if (bottom_layer_alpha_en && i == 1) {/* Cd = Cs + (1 - As) * Cd * Agd */
if (bottom_layer_alpha_en && i == 1) {
/**
* The data from cluster mix is always premultiplied alpha;
* cluster layer or esmart layer[premulti_en = 1]
* Cd = Cs + (1 - As) * Cd * Agd
* esmart layer[premulti_en = 0]
* Cd = As * Cs + (1 - As) * Cd * Agd
**/
if (vop2_cluster_window(win))
alpha_config.src_premulti_en = true;
alpha_config.dst_premulti_en = false;
alpha_config.src_pixel_alpha_en = pixel_alpha_en;
alpha_config.src_glb_alpha_value = vpstate->global_alpha;
alpha_config.dst_glb_alpha_value = dst_global_alpha;
} else if (vop2_cluster_window(win)) {/* Mix output data only have pixel alpha */
/* The data from cluster mix is always premultiplied alpha */
alpha_config.src_premulti_en = true;
alpha_config.dst_premulti_en = true;
alpha_config.src_pixel_alpha_en = true;
alpha_config.src_glb_alpha_value = 0xff;