2016년 01월 27일 23:44에 Marek Szyprowski 이(가) 쓴 글:
> This patch adds support for blending related properties to Exynos DRM
> core and Exynos Mixer CRTC device.
To drm-misc.
Acked-by : Inki Dae <inki.dae@xxxxxxxxxxx>
Thanks,
Inki Dae
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/exynos/exynos_drm_drv.h | 5 +++
> drivers/gpu/drm/exynos/exynos_drm_plane.c | 60 +++++++++++++++++++++++++++++++
> 2 files changed, 65 insertions(+)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> index 816537886e4e..b33d69b8bb38 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> @@ -92,6 +92,9 @@ struct exynos_drm_plane {
> #define EXYNOS_DRM_PLANE_CAP_DOUBLE (1 << 0)
> #define EXYNOS_DRM_PLANE_CAP_SCALE (1 << 1)
> #define EXYNOS_DRM_PLANE_CAP_ZPOS (1 << 2)
> +#define EXYNOS_DRM_PLANE_CAP_PLANE_ALPHA (1 << 3)
> +#define EXYNOS_DRM_PLANE_CAP_PREMULT_ALPHA (1 << 4)
> +#define EXYNOS_DRM_PLANE_CAP_BLENDING (1 << 5)
>
> /*
> * Exynos DRM plane configuration structure.
> @@ -100,6 +103,7 @@ struct exynos_drm_plane {
> * @type: type of the plane (primary, cursor or overlay).
> * @pixel_formats: supported pixel formats.
> * @num_pixel_formats: number of elements in 'pixel_formats'.
> + * @blending_mode: default blending mode.
> * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
> */
>
> @@ -108,6 +112,7 @@ struct exynos_drm_plane_config {
> enum drm_plane_type type;
> const uint32_t *pixel_formats;
> unsigned int num_pixel_formats;
> + unsigned int blending_mode;
> unsigned int capabilities;
> };
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
> index 3a486939168e..28502aac135f 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
> @@ -140,6 +140,9 @@ static void exynos_drm_plane_reset(struct drm_plane *plane)
> plane->state = &exynos_state->base;
> plane->state->plane = plane;
> plane->state->zpos = exynos_plane->config->zpos;
> + plane->state->alpha = 255;
> + plane->state->alpha_premult = 1;
> + plane->state->blending = exynos_plane->config->blending_mode;
> }
> }
>
> @@ -284,6 +287,53 @@ static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
> drm_object_attach_property(&plane->base, prop, zpos);
> }
>
> +static void exynos_plane_attach_alpha_property(struct drm_plane *plane)
> +{
> + struct drm_device *dev = plane->dev;
> +
> + if (!dev->mode_config.alpha_property)
> + if (drm_mode_create_alpha_property(dev, 255))
> + return;
> +
> + drm_object_attach_property(&plane->base,
> + dev->mode_config.alpha_property, 255);
> +}
> +
> +static void exynos_plane_attach_alpha_premult_property(struct drm_plane *plane)
> +{
> + struct drm_device *dev = plane->dev;
> +
> + if (!dev->mode_config.alpha_premult_property)
> + if (drm_mode_create_alpha_premult_property(dev)) {
> + printk("failed to create alpha premult property\n");
> + return;
> + }
> +
> + drm_object_attach_property(&plane->base,
> + dev->mode_config.alpha_premult_property, 1);
> +}
> +
> +static void exynos_plane_attach_blending_property(struct drm_plane *plane,
> + unsigned int blending_mode)
> +{
> + struct drm_device *dev = plane->dev;
> + static unsigned int blending_modes[] = {
> + DRM_BLEND_DISABLED,
> + DRM_BLEND_PIXEL_ALPHA,
> + DRM_BLEND_CONST_ALPHA,
> + DRM_BLEND_PIXEL_CONST_ALPHA,
> + };
> +
> + if (!dev->mode_config.blending_property)
> + if (drm_mode_create_blending_property(dev, blending_modes,
> + ARRAY_SIZE(blending_modes)))
> + return;
> +
> + drm_object_attach_property(&plane->base,
> + dev->mode_config.blending_property,
> + blending_mode);
> +}
> +
> int exynos_plane_init(struct drm_device *dev,
> struct exynos_drm_plane *exynos_plane,
> unsigned int index, unsigned long possible_crtcs,
> @@ -310,5 +360,15 @@ int exynos_plane_init(struct drm_device *dev,
> exynos_plane_attach_zpos_property(&exynos_plane->base, config->zpos,
> !(config->capabilities & EXYNOS_DRM_PLANE_CAP_ZPOS));
>
> + if (config->capabilities & EXYNOS_DRM_PLANE_CAP_PLANE_ALPHA)
> + exynos_plane_attach_alpha_property(&exynos_plane->base);
> +
> + if (config->capabilities & EXYNOS_DRM_PLANE_CAP_PREMULT_ALPHA)
> + exynos_plane_attach_alpha_premult_property(&exynos_plane->base);
> +
> + if (config->capabilities & EXYNOS_DRM_PLANE_CAP_BLENDING)
> + exynos_plane_attach_blending_property(&exynos_plane->base,
> + config->blending_mode);
> +
> return 0;
> }
>
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