xf86-video-intel: src/sna/sna_display.c
Chris Wilson
ickle at kemper.freedesktop.org
Mon Aug 8 10:35:38 UTC 2016
src/sna/sna_display.c | 54 ++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 46 insertions(+), 8 deletions(-)
New commits:
commit 52343d7da1cc8f3aef3497dfac5d16c249b2a63d
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Mon Aug 8 11:31:51 2016 +0100
sna: Remove translation from affine HW cursor transformation
When the CRTC is transformed, we also want to apply that transformation
to the cursor image so that we can continue to use the HW cursor (but
have it appear relative to the output and not to the framebuffer).
However, we need to convert the CRTC transformation relative to the
cursor and convert it to a simple rotation/scaling/skew transformation
(we already verify it is an affine) by removing any translation.
Reported-by: Da Fox <da.fox.mail at gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97236
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index f10e340..aa8b4fb 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -5625,7 +5625,6 @@ static struct sna_cursor *__sna_get_cursor(struct sna *sna, xf86CrtcPtr crtc)
const uint32_t *argb;
uint32_t *image;
int width, height, pitch, size, x, y;
- PictTransform cursor_to_fb;
bool transformed;
Rotation rotation;
@@ -5677,16 +5676,53 @@ static struct sna_cursor *__sna_get_cursor(struct sna *sna, xf86CrtcPtr crtc)
pixman_f_transform_bounds(&crtc->f_crtc_to_framebuffer, &box);
size = __cursor_size(box.x2 - box.x1, box.y2 - box.y1);
+ __DBG(("%s: transformed cursor %dx%d -> %dx%d\n",
+ __FUNCTION__ ,
+ sna->cursor.ref->bits->width,
+ sna->cursor.ref->bits->height,
+ box.x2 - box.x1, box.y2 - box.y1));
} else
size = sna->cursor.size;
- if (crtc->transform_in_use)
- RRTransformCompute(0, 0, size, size,
- crtc->rotation,
- crtc->transformPresent ? &crtc->transform : NULL,
- &cursor_to_fb,
- &to_sna_crtc(crtc)->cursor_to_fb,
- &to_sna_crtc(crtc)->fb_to_cursor);
+ if (crtc->transform_in_use) {
+ RRTransformPtr T = NULL;
+ struct pixman_vector v;
+
+ if (crtc->transformPresent) {
+ T = &crtc->transform;
+
+ /* Cancel any translation from this affine
+ * transformation. We just want to rotate and scale
+ * the cursor image.
+ */
+ v.vector[0] = 0;
+ v.vector[1] = 0;
+ v.vector[2] = pixman_fixed_1;
+ pixman_transform_point(&crtc->transform.transform, &v);
+ }
+
+ RRTransformCompute(0, 0, size, size, crtc->rotation, T, NULL,
+ &to_sna_crtc(crtc)->cursor_to_fb,
+ &to_sna_crtc(crtc)->fb_to_cursor);
+ if (T)
+ pixman_f_transform_translate(
+ &to_sna_crtc(crtc)->cursor_to_fb,
+ &to_sna_crtc(crtc)->fb_to_cursor,
+ -pixman_fixed_to_double(v.vector[0]),
+ -pixman_fixed_to_double(v.vector[1]));
+
+ __DBG(("%s: cursor_to_fb [%f %f %f, %f %f %f, %f %f %f]\n",
+ __FUNCTION__,
+ to_sna_crtc(crtc)->cursor_to_fb.m[0][0],
+ to_sna_crtc(crtc)->cursor_to_fb.m[0][1],
+ to_sna_crtc(crtc)->cursor_to_fb.m[0][2],
+ to_sna_crtc(crtc)->cursor_to_fb.m[1][0],
+ to_sna_crtc(crtc)->cursor_to_fb.m[1][1],
+ to_sna_crtc(crtc)->cursor_to_fb.m[1][2],
+ to_sna_crtc(crtc)->cursor_to_fb.m[2][0],
+ to_sna_crtc(crtc)->cursor_to_fb.m[2][1],
+ to_sna_crtc(crtc)->cursor_to_fb.m[2][2]));
+ }
cursor = to_sna_crtc(crtc)->cursor;
if (cursor && cursor->alloc < 4*size*size)
@@ -5740,6 +5776,7 @@ static struct sna_cursor *__sna_get_cursor(struct sna *sna, xf86CrtcPtr crtc)
source += pitch;
}
if (transformed) {
+ __DBG(("%s: Applying affine BLT to bitmap\n", __FUNCTION__));
affine_blt(image, cursor->image, 32,
0, 0, width, height, size * 4,
0, 0, size, size, size * 4,
@@ -5747,6 +5784,7 @@ static struct sna_cursor *__sna_get_cursor(struct sna *sna, xf86CrtcPtr crtc)
image = cursor->image;
}
} else if (transformed) {
+ __DBG(("%s: Applying affine BLT to ARGB\n", __FUNCTION__));
affine_blt(argb, cursor->image, 32,
0, 0, width, height, width * 4,
0, 0, size, size, size * 4,
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