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compositor-drm: Support hardware scaling with drm planes

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The kms planes support scaling, so try to detect transformations that
are just translations + scaling and program the kms plane accordingly.

In particular, this lets us fullscreen a yuv surfaces with the scale method
and have the compositor use a kms plane for scaling and color conversion.
This commit is contained in:
Kristian Høgsberg 2012-07-13 15:25:07 -04:00
parent 270a7cb02d
commit 3b00bae996
1 changed files with 49 additions and 7 deletions
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56
src/compositor-drm.c
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@ -481,8 +481,30 @@ drm_surface_format_supported(struct drm_sprite *s, uint32_t format)
static int
drm_surface_transform_supported(struct weston_surface *es)
{
if (es->transform.enabled)
return 0;
struct weston_matrix *matrix = &es->transform.matrix;
int i;
if (!es->transform.enabled)
return 1;
for (i = 0; i < 16; i++) {
switch (i) {
case 10:
case 15:
if (matrix->d[i] != 1.0)
return 0;
break;
case 0:
case 5:
case 12:
case 13:
break;
default:
if (matrix->d[i] != 0.0)
return 0;
break;
}
}
return 1;
}
@ -553,6 +575,7 @@ drm_output_prepare_overlay_surface(struct weston_output *output_base,
pixman_region32_t dest_rect, src_rect;
pixman_box32_t *box;
uint32_t format;
wl_fixed_t sx1, sy1, sx2, sy2;
if (c->sprites_are_broken)
return -1;
@ -647,16 +670,35 @@ drm_output_prepare_overlay_surface(struct weston_output *output_base,
pixman_region32_init(&src_rect);
pixman_region32_intersect(&src_rect, &es->transform.boundingbox,
&output_base->region);
pixman_region32_translate(&src_rect, -es->geometry.x, -es->geometry.y);
box = pixman_region32_extents(&src_rect);
s->src_x = box->x1 << 16;
s->src_y = box->y1 << 16;
s->src_w = (box->x2 - box->x1) << 16;
s->src_h = (box->y2 - box->y1) << 16;
weston_surface_from_global_fixed(es,
wl_fixed_from_int(box->x1),
wl_fixed_from_int(box->y1),
&sx1, &sy1);
weston_surface_from_global_fixed(es,
wl_fixed_from_int(box->x2),
wl_fixed_from_int(box->y2),
&sx2, &sy2);
if (sx1 < 0)
sx1 = 0;
if (sy1 < 0)
sy1 = 0;
if (sx2 > wl_fixed_from_int(es->geometry.width))
sx2 = wl_fixed_from_int(es->geometry.width);
if (sy2 > wl_fixed_from_int(es->geometry.height))
sy2 = wl_fixed_from_int(es->geometry.height);
s->src_x = sx1 << 8;
s->src_y = sy1 << 8;
s->src_w = (sx2 - sx1) << 8;
s->src_h = (sy2 - sy1) << 8;
pixman_region32_fini(&src_rect);
wl_signal_add(&es->buffer->resource.destroy_signal,
&s->pending_destroy_listener);
return 0;
}