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Date: Mon, 10 Feb 2014 15:32:57 +0200
From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
To: sagar.a.kamble@...el.com
Cc: intel-gfx@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel.vetter@...ll.ch>,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v5 11/11] drm/i915: Calling rotate and
inverse rotate transformations after clipping
On Mon, Feb 10, 2014 at 01:01:18PM +0530, sagar.a.kamble@...el.com wrote:
> From: Sagar Kamble <sagar.a.kamble@...el.com>
>
> With clipped sprites these transformations are not working. these
> functions transform complete sprite irrespective of clipping present.
> This leads to invisible portion of sprite show up when rotate 180 if
> it was out of visible area before.
>
> v4: Moved rotate transform for source rectangle after clipping.
> Added rotate and inverse rotate transform for destination rect.
Still NAK.
I just pushed rotation support to my glplane test app [1], and with
with that my rotated clipping code works exactly as intended.
[1] git://gitorious.org/vsyrjala/glplane.git
>
> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
> Cc: Jani Nikula <jani.nikula@...ux.intel.com>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: dri-devel@...ts.freedesktop.org
> Cc: linux-kernel@...r.kernel.org
> Cc: vijay.a.purushothaman@...el.com
> Signed-off-by: Sagar Kamble <sagar.a.kamble@...el.com>
> ---
> drivers/gpu/drm/i915/intel_sprite.c | 16 ++++++++++++----
> 1 file changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 62b9f84..799f6a9 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -769,9 +769,6 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
> max_scale = intel_plane->max_downscale << 16;
> min_scale = intel_plane->can_scale ? 1 : (1 << 16);
>
> - drm_rect_rotate(&src, fb->width << 16, fb->height << 16,
> - intel_plane->rotation);
> -
> hscale = drm_rect_calc_hscale_relaxed(&src, &dst, min_scale, max_scale);
> BUG_ON(hscale < 0);
>
> @@ -785,6 +782,13 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
> crtc_w = drm_rect_width(&dst);
> crtc_h = drm_rect_height(&dst);
>
> + drm_rect_rotate(&src, fb->width << 16, fb->height << 16,
> + intel_plane->rotation);
> +
> + drm_rect_rotate(&dst, intel_crtc->config.pipe_src_w,
> + intel_crtc->config.pipe_src_h,
> + intel_plane->rotation);
> +
> if (visible) {
> /* check again in case clipping clamped the results */
> hscale = drm_rect_calc_hscale(&src, &dst, min_scale, max_scale);
> @@ -811,7 +815,11 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
> drm_rect_height(&dst) * vscale - drm_rect_height(&src));
>
> drm_rect_rotate_inv(&src, fb->width << 16, fb->height << 16,
> - intel_plane->rotation);
> + intel_plane->rotation);
> +
> + drm_rect_rotate_inv(&dst, intel_crtc->config.pipe_src_w,
> + intel_crtc->config.pipe_src_h,
> + intel_plane->rotation);
>
> /* sanity check to make sure the src viewport wasn't enlarged */
> WARN_ON(src.x1 < (int) src_x ||
> --
> 1.8.5
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel OTC
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