Use the shiny new helper we have for working through scanout as well.

Signed-off-by: Daniel Stone <dani...@collabora.com>

Differential Revision: https://phabricator.freedesktop.org/D1518

Signed-off-by: Daniel Stone <dani...@collabora.com>
---
 libweston/compositor-drm.c | 66 ++++++++++++++++------------------------------
 1 file changed, 23 insertions(+), 43 deletions(-)

diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index 397bc75..b89f773 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -1499,13 +1499,6 @@ drm_output_assign_state(struct drm_output_state *state,
        }
 }
 
-static int
-drm_view_transform_supported(struct weston_view *ev)
-{
-       return !ev->transform.enabled ||
-               (ev->transform.matrix.type < WESTON_MATRIX_TRANSFORM_ROTATE);
-}
-
 static bool
 drm_view_is_opaque(struct weston_view *ev)
 {
@@ -1537,7 +1530,6 @@ drm_output_prepare_scanout_view(struct drm_output_state 
*output_state,
        struct drm_plane *scanout_plane = output->scanout_plane;
        struct drm_plane_state *state;
        struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
-       struct weston_buffer_viewport *viewport = &ev->surface->buffer_viewport;
        struct gbm_bo *bo;
 
        /* Don't import buffers which span multiple outputs. */
@@ -1553,67 +1545,55 @@ drm_output_prepare_scanout_view(struct drm_output_state 
*output_state,
        if (wl_shm_buffer_get(buffer->resource))
                return NULL;
 
-       /* Make sure our view is exactly compatible with the output. */
-       if (ev->geometry.x != output->base.x ||
-           ev->geometry.y != output->base.y)
-               return NULL;
-       if (buffer->width != output->base.current_mode->width ||
-           buffer->height != output->base.current_mode->height)
-               return NULL;
+       state = drm_output_state_get_plane(output_state, scanout_plane);
+       if (state->fb)
+               goto err;
 
-       if (ev->transform.enabled)
-               return NULL;
-       if (ev->geometry.scissor_enabled)
-               return NULL;
-       if (viewport->buffer.transform != output->base.transform)
-               return NULL;
-       if (viewport->buffer.scale != output->base.current_scale)
-               return NULL;
-       if (!drm_view_transform_supported(ev))
-               return NULL;
+       state->output = output;
+       drm_plane_state_coords_for_view(state, ev);
+
+       /* The legacy API does not let us perform cropping or scaling. */
+       if (state->src_x != 0 || state->src_y != 0 ||
+           state->src_w != state->dest_w << 16 ||
+           state->src_h != state->dest_h << 16 ||
+           state->dest_x != 0 || state->dest_y != 0 ||
+           state->dest_w != (unsigned) output->base.current_mode->width ||
+           state->dest_h != (unsigned) output->base.current_mode->height)
+               goto err;
 
        if (ev->alpha != 1.0f)
-               return NULL;
+               goto err;
 
        bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_WL_BUFFER,
                           buffer->resource, GBM_BO_USE_SCANOUT);
 
        /* Unable to use the buffer for scanout */
        if (!bo)
-               return NULL;
+               goto err;
 
        state = drm_output_state_get_plane(output_state, scanout_plane);
        state->fb = drm_fb_get_from_bo(bo, b, drm_view_is_opaque(ev),
                                       BUFFER_CLIENT);
        if (!state->fb) {
-               drm_plane_state_put_back(state);
+               /* We need to explicitly destroy the BO. */
                gbm_bo_destroy(bo);
-               return NULL;
+               goto err;
        }
 
        /* Can't change formats with just a pageflip */
        if (state->fb->format->format != output->gbm_format) {
                /* No need to destroy the GBM BO here, as it's now owned
                 * by the FB. */
-               drm_plane_state_put_back(state);
-               return NULL;
+               goto err;
        }
 
        drm_fb_set_buffer(state->fb, buffer);
 
-       state->output = output;
-
-       state->src_x = 0;
-       state->src_y = 0;
-       state->src_w = ev->surface->width << 16;
-       state->src_h = ev->surface->height << 16;
-
-       state->dest_x = 0;
-       state->dest_y = 0;
-       state->dest_w = output->base.width;
-       state->dest_h = output->base.height;
-
        return &scanout_plane->base;
+
+err:
+       drm_plane_state_put_back(state);
+       return NULL;
 }
 
 static struct drm_fb *
-- 
2.9.3

_______________________________________________
wayland-devel mailing list
wayland-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/wayland-devel

Reply via email to