[PATCH] drm: Deal with rotation in drm_plane_helper_check_update()
Ville Syrjälä
ville.syrjala at linux.intel.com
Wed May 11 20:05:54 UTC 2016
On Fri, Jan 15, 2016 at 08:51:06PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> drm_plane_helper_check_update() needs to account for the plane rotation
> for correct clipping/scaling calculations. Do so.
>
> There was an earlier attempt [1] to add this into
> intel_check_primary_plane() but I requested that it'd be put into the
> helper instead. An updated patch never materialized AFAICS, so I went
> ahead and cooked one up myself.
Ping. Anyone interested in rotation actually working with
drm_plane_helper_check_update() ?
>
> [1] https://patchwork.freedesktop.org/patch/65177/
> Cc: Nabendu Maiti <nabendu.bikash.maiti at intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
> drivers/gpu/drm/armada/armada_overlay.c | 1 +
> drivers/gpu/drm/drm_plane_helper.c | 28 ++++++++++++++++++----------
> drivers/gpu/drm/i915/intel_display.c | 2 ++
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 +
> include/drm/drm_plane_helper.h | 1 +
> 5 files changed, 23 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
> index 148e8a42b2c6..1ee707ef6b8d 100644
> --- a/drivers/gpu/drm/armada/armada_overlay.c
> +++ b/drivers/gpu/drm/armada/armada_overlay.c
> @@ -121,6 +121,7 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
> int ret;
>
> ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
> + BIT(DRM_ROTATE_0),
> 0, INT_MAX, true, false, &visible);
> if (ret)
> return ret;
> diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
> index 369d2898ff9e..0c12fa1a696f 100644
> --- a/drivers/gpu/drm/drm_plane_helper.c
> +++ b/drivers/gpu/drm/drm_plane_helper.c
> @@ -115,6 +115,7 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
> * @src: source coordinates in 16.16 fixed point
> * @dest: integer destination coordinates
> * @clip: integer clipping coordinates
> + * @rotation: plane rotation
> * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point
> * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point
> * @can_position: is it legal to position the plane such that it
> @@ -134,16 +135,17 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
> * Zero if update appears valid, error code on failure
> */
> int drm_plane_helper_check_update(struct drm_plane *plane,
> - struct drm_crtc *crtc,
> - struct drm_framebuffer *fb,
> - struct drm_rect *src,
> - struct drm_rect *dest,
> - const struct drm_rect *clip,
> - int min_scale,
> - int max_scale,
> - bool can_position,
> - bool can_update_disabled,
> - bool *visible)
> + struct drm_crtc *crtc,
> + struct drm_framebuffer *fb,
> + struct drm_rect *src,
> + struct drm_rect *dest,
> + const struct drm_rect *clip,
> + unsigned int rotation,
> + int min_scale,
> + int max_scale,
> + bool can_position,
> + bool can_update_disabled,
> + bool *visible)
> {
> int hscale, vscale;
>
> @@ -163,6 +165,8 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
> return -EINVAL;
> }
>
> + drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation);
> +
> /* Check scaling */
> hscale = drm_rect_calc_hscale(src, dest, min_scale, max_scale);
> vscale = drm_rect_calc_vscale(src, dest, min_scale, max_scale);
> @@ -174,6 +178,9 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
> }
>
> *visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale);
> +
> + drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation);
> +
> if (!*visible)
> /*
> * Plane isn't visible; some drivers can handle this
> @@ -265,6 +272,7 @@ int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
>
> ret = drm_plane_helper_check_update(plane, crtc, fb,
> &src, &dest, &clip,
> + BIT(DRM_ROTATE_0),
> DRM_PLANE_HELPER_NO_SCALING,
> DRM_PLANE_HELPER_NO_SCALING,
> false, false, &visible);
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index c4cd9c94faa6..a726c5e91220 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14029,6 +14029,7 @@ intel_check_primary_plane(struct drm_plane *plane,
>
> return drm_plane_helper_check_update(plane, crtc, fb, &state->src,
> &state->dst, &state->clip,
> + state->base.rotation,
> min_scale, max_scale,
> can_position, true,
> &state->visible);
> @@ -14192,6 +14193,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
>
> ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src,
> &state->dst, &state->clip,
> + state->base.rotation,
> DRM_PLANE_HELPER_NO_SCALING,
> DRM_PLANE_HELPER_NO_SCALING,
> true, true, &state->visible);
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 46c2a8dfd8aa..532df0a8656a 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -583,6 +583,7 @@ static int vop_plane_atomic_check(struct drm_plane *plane,
>
> ret = drm_plane_helper_check_update(plane, crtc, state->fb,
> src, dest, &clip,
> + state->rotation,
> min_scale,
> max_scale,
> true, true, &visible);
> diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
> index 4421f3f4ca8d..0e0c3573cce0 100644
> --- a/include/drm/drm_plane_helper.h
> +++ b/include/drm/drm_plane_helper.h
> @@ -46,6 +46,7 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
> struct drm_rect *src,
> struct drm_rect *dest,
> const struct drm_rect *clip,
> + unsigned int rotation,
> int min_scale,
> int max_scale,
> bool can_position,
> --
> 2.4.10
--
Ville Syrjälä
Intel OTC
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