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compositor-drm: Extract overlay FB import to helper

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... in order to be able to use it from scanout as well.

In doing this, the check for format compatibility is moved from after
selecting a plane to before selecting a plane. If different planes have
disjoint format support, this ensures that we don't reject the view from
all overlay consideration, just because the first plane we found didn't
support its format.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Tested-by: Emre Ucan <eucan@de.adit-jv.com>
dev
Daniel Stone 8 years ago
parent 9b56038417
commit f11ec02cad
1 changed files with 119 additions and 100 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 219
      libweston/compositor-drm.c

219
libweston/compositor-drm.c
Unescape View File

@ -1305,6 +1305,109 @@ drm_plane_state_coords_for_view(struct drm_plane_state *state,
return true;
}
static bool
drm_view_is_opaque(struct weston_view *ev)
{
pixman_region32_t r;
bool ret = false;
pixman_region32_init_rect(&r, 0, 0,
ev->surface->width,
ev->surface->height);
pixman_region32_subtract(&r, &r, &ev->surface->opaque);
if (!pixman_region32_not_empty(&r))
ret = true;
pixman_region32_fini(&r);
return ret;
}
static struct drm_fb *
drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev)
{
struct drm_output *output = state->output;
struct drm_backend *b = to_drm_backend(output->base.compositor);
struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
struct linux_dmabuf_buffer *dmabuf;
struct drm_fb *fb;
struct gbm_bo *bo;
/* Don't import buffers which span multiple outputs. */
if (ev->output_mask != (1u << output->base.id))
return NULL;
if (ev->alpha != 1.0f)
return NULL;
if (!drm_view_transform_supported(ev, &output->base))
return NULL;
if (!buffer)
return NULL;
if (wl_shm_buffer_get(buffer->resource))
return NULL;
if (!b->gbm)
return NULL;
dmabuf = linux_dmabuf_buffer_get(buffer->resource);
if (dmabuf) {
#ifdef HAVE_GBM_FD_IMPORT
/* XXX: TODO:
*
* Use AddFB2 directly, do not go via GBM.
* Add support for multiplanar formats.
* Both require refactoring in the DRM-backend to
* support a mix of gbm_bos and drmfbs.
*/
struct gbm_import_fd_data gbm_dmabuf = {
.fd = dmabuf->attributes.fd[0],
.width = dmabuf->attributes.width,
.height = dmabuf->attributes.height,
.stride = dmabuf->attributes.stride[0],
.format = dmabuf->attributes.format
};
/* XXX: TODO:
*
* Currently the buffer is rejected if any dmabuf attribute
* flag is set. This keeps us from passing an inverted /
* interlaced / bottom-first buffer (or any other type that may
* be added in the future) through to an overlay. Ultimately,
* these types of buffers should be handled through buffer
* transforms and not as spot-checks requiring specific
* knowledge. */
if (dmabuf->attributes.n_planes != 1 ||
dmabuf->attributes.offset[0] != 0 ||
dmabuf->attributes.flags)
return NULL;
bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_FD, &gbm_dmabuf,
GBM_BO_USE_SCANOUT);
#else
return NULL;
#endif
} else {
bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_WL_BUFFER,
buffer->resource, GBM_BO_USE_SCANOUT);
}
if (!bo)
return NULL;
fb = drm_fb_get_from_bo(bo, b, drm_view_is_opaque(ev), BUFFER_CLIENT);
if (!fb) {
gbm_bo_destroy(bo);
return NULL;
}
drm_fb_set_buffer(fb, buffer);
return fb;
}
/**
* Return a plane state from a drm_output_state.
*/
@ -1642,25 +1745,6 @@ drm_output_assign_state(struct drm_output_state *state,
}
}
static bool
drm_view_is_opaque(struct weston_view *ev)
{
pixman_region32_t r;
bool ret = false;
pixman_region32_init_rect(&r, 0, 0,
ev->surface->width,
ev->surface->height);
pixman_region32_subtract(&r, &r, &ev->surface->opaque);
if (!pixman_region32_not_empty(&r))
ret = true;
pixman_region32_fini(&r);
return ret;
}
static struct weston_plane *
drm_output_prepare_scanout_view(struct drm_output_state *output_state,
struct weston_view *ev)
@ -2749,31 +2833,16 @@ drm_output_prepare_overlay_view(struct drm_output_state *output_state,
struct drm_output *output = output_state->output;
struct weston_compositor *ec = output->base.compositor;
struct drm_backend *b = to_drm_backend(ec);
struct wl_resource *buffer_resource;
struct drm_plane *p;
struct drm_plane_state *state = NULL;
struct linux_dmabuf_buffer *dmabuf;
struct gbm_bo *bo = NULL;
struct drm_fb *fb;
unsigned int i;
if (b->sprites_are_broken)
return NULL;
/* Don't import buffers which span multiple outputs. */
if (ev->output_mask != (1u << output->base.id))
return NULL;
/* We can only import GBM buffers. */
if (b->gbm == NULL)
return NULL;
if (ev->surface->buffer_ref.buffer == NULL)
return NULL;
buffer_resource = ev->surface->buffer_ref.buffer->resource;
if (wl_shm_buffer_get(buffer_resource))
return NULL;
if (ev->alpha != 1.0f)
fb = drm_fb_get_from_view(output_state, ev);
if (!fb)
return NULL;
wl_list_for_each(p, &b->plane_list, link) {
@ -2783,6 +2852,14 @@ drm_output_prepare_overlay_view(struct drm_output_state *output_state,
if (!drm_plane_is_available(p, output))
continue;
/* Check whether the format is supported */
for (i = 0; i < p->count_formats; i++) {
if (p->formats[i] == fb->format->format)
break;
}
if (i == p->count_formats)
continue;
state = drm_output_state_get_plane(output_state, p);
if (state->fb) {
state = NULL;
@ -2793,10 +2870,14 @@ drm_output_prepare_overlay_view(struct drm_output_state *output_state,
}
/* No sprites available */
if (!state)
if (!state) {
drm_fb_unref(fb);
return NULL;
}
state->fb = fb;
state->output = output;
if (!drm_plane_state_coords_for_view(state, ev))
goto err;
@ -2804,71 +2885,9 @@ drm_output_prepare_overlay_view(struct drm_output_state *output_state,
state->src_h != state->dest_h << 16)
goto err;
if ((dmabuf = linux_dmabuf_buffer_get(buffer_resource))) {
#ifdef HAVE_GBM_FD_IMPORT
/* XXX: TODO:
*
* Use AddFB2 directly, do not go via GBM.
* Add support for multiplanar formats.
* Both require refactoring in the DRM-backend to
* support a mix of gbm_bos and drmfbs.
*/
struct gbm_import_fd_data gbm_dmabuf = {
.fd = dmabuf->attributes.fd[0],
.width = dmabuf->attributes.width,
.height = dmabuf->attributes.height,
.stride = dmabuf->attributes.stride[0],
.format = dmabuf->attributes.format
};
/* XXX: TODO:
*
* Currently the buffer is rejected if any dmabuf attribute
* flag is set. This keeps us from passing an inverted /
* interlaced / bottom-first buffer (or any other type that may
* be added in the future) through to an overlay. Ultimately,
* these types of buffers should be handled through buffer
* transforms and not as spot-checks requiring specific
* knowledge. */
if (dmabuf->attributes.n_planes != 1 ||
dmabuf->attributes.offset[0] != 0 ||
dmabuf->attributes.flags)
goto err;
bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_FD, &gbm_dmabuf,
GBM_BO_USE_SCANOUT);
#else
goto err;
#endif
} else {
bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_WL_BUFFER,
buffer_resource, GBM_BO_USE_SCANOUT);
}
if (!bo)
goto err;
state->fb = drm_fb_get_from_bo(bo, b, drm_view_is_opaque(ev),
BUFFER_CLIENT);
if (!state->fb)
goto err;
bo = NULL;
/* Check whether the format is supported */
for (i = 0; i < p->count_formats; i++)
if (p->formats[i] == state->fb->format->format)
break;
if (i == p->count_formats)
goto err;
drm_fb_set_buffer(state->fb, ev->surface->buffer_ref.buffer);
return &p->base;
err:
/* Destroy the BO as we've allocated it, but it won't yet
* be deallocated by the state. */
if (bo)
gbm_bo_destroy(bo);
drm_plane_state_put_back(state);
return NULL;
}

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