a344fe3245
Currently drm-layer supports HDCP1.4 using connector property: Content Protection. This property if available for a platform, can be read and set for requesting content-protection. Also, the patch series [1] adds HDCP2.2 support in drm, and patch [2] adds support to send udev events for change in connector properties, made by the kernel. This patch adds these HDCP connector properties in weston, and exposes the content-protection support to the client for drm-backend. It adds the enums to represent 'Content Protection' and 'Content Type' connector properties exposed by drm layer. It adds a member 'protection' in drm_output_state, to store the desired protection from the weston_output in the drm-backend output-repaint cycle. This is then used to write the HDCP connector properties for the drm_heads attached to the drm_output. The kernel sends uevents to the user-space for any change made by it in the "Content Protection" connector property. No event is sent in case of change in the property made by the user-space. It means, when there is a change of the property value from "DESIRED" to "ENABLE" i.e. successful authentication by the kernel, a uevent will be generated, but in case of userspace requesting for disabling the protection by writing "UNDESIRED" into the property, no uevent will be generated. This patch also adds support for handling new udev events for HDCP connector property changes. Any such change, triggers change in the weston_head's current_protection. [1] https://patchwork.freedesktop.org/series/57233/#rev7 [2] https://patchwork.freedesktop.org/patch/303903/?series=57233&rev=7 Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
815 lines
27 KiB
C
815 lines
27 KiB
C
/*
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* Copyright © 2008-2011 Kristian Høgsberg
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* Copyright © 2011 Intel Corporation
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* Copyright © 2017, 2018 Collabora, Ltd.
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* Copyright © 2017, 2018 General Electric Company
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* Copyright (c) 2018 DisplayLink (UK) Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <libweston/libweston.h>
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#include <libweston/backend-drm.h>
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#include <libweston/pixel-formats.h>
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#include "drm-internal.h"
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#include "linux-dmabuf.h"
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#include "presentation-time-server-protocol.h"
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enum drm_output_propose_state_mode {
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DRM_OUTPUT_PROPOSE_STATE_MIXED, /**< mix renderer & planes */
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DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY, /**< only assign to renderer & cursor */
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DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY, /**< no renderer use, only planes */
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};
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static const char *const drm_output_propose_state_mode_as_string[] = {
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[DRM_OUTPUT_PROPOSE_STATE_MIXED] = "mixed state",
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[DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY] = "render-only state",
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[DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY] = "plane-only state"
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};
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static const char *
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drm_propose_state_mode_to_string(enum drm_output_propose_state_mode mode)
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{
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if (mode < 0 || mode >= ARRAY_LENGTH(drm_output_propose_state_mode_as_string))
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return " unknown compositing mode";
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return drm_output_propose_state_mode_as_string[mode];
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}
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static struct drm_plane_state *
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drm_output_prepare_overlay_view(struct drm_output_state *output_state,
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struct weston_view *ev,
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enum drm_output_propose_state_mode mode)
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{
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struct drm_output *output = output_state->output;
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struct weston_compositor *ec = output->base.compositor;
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struct drm_backend *b = to_drm_backend(ec);
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struct drm_plane *p;
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struct drm_plane_state *state = NULL;
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struct drm_fb *fb;
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unsigned int i;
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int ret;
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enum {
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NO_PLANES,
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NO_PLANES_WITH_FORMAT,
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NO_PLANES_ACCEPTED,
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PLACED_ON_PLANE,
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} availability = NO_PLANES;
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assert(!b->sprites_are_broken);
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assert(b->atomic_modeset);
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fb = drm_fb_get_from_view(output_state, ev);
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if (!fb) {
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
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" couldn't get fb\n", ev);
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return NULL;
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}
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wl_list_for_each(p, &b->plane_list, link) {
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if (p->type != WDRM_PLANE_TYPE_OVERLAY)
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continue;
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if (!drm_plane_is_available(p, output))
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continue;
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state = drm_output_state_get_plane(output_state, p);
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if (state->fb) {
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state = NULL;
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continue;
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}
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if (availability == NO_PLANES)
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availability = NO_PLANES_WITH_FORMAT;
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/* Check whether the format is supported */
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for (i = 0; i < p->count_formats; i++) {
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unsigned int j;
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if (p->formats[i].format != fb->format->format)
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continue;
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if (fb->modifier == DRM_FORMAT_MOD_INVALID)
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break;
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for (j = 0; j < p->formats[i].count_modifiers; j++) {
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if (p->formats[i].modifiers[j] == fb->modifier)
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break;
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}
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if (j != p->formats[i].count_modifiers)
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break;
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}
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if (i == p->count_formats) {
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drm_plane_state_put_back(state);
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state = NULL;
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continue;
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}
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if (availability == NO_PLANES_WITH_FORMAT)
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availability = NO_PLANES_ACCEPTED;
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state->ev = ev;
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state->output = output;
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if (!drm_plane_state_coords_for_view(state, ev)) {
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
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"unsuitable transform\n", ev);
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drm_plane_state_put_back(state);
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state = NULL;
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continue;
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}
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/* If the surface buffer has an in-fence fd, but the plane
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* doesn't support fences, we can't place the buffer on this
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* plane. */
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if (ev->surface->acquire_fence_fd >= 0 &&
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p->props[WDRM_PLANE_IN_FENCE_FD].prop_id == 0) {
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
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"no in-fence support\n", ev);
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drm_plane_state_put_back(state);
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state = NULL;
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continue;
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}
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/* We hold one reference for the lifetime of this function;
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* from calling drm_fb_get_from_view, to the out label where
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* we unconditionally drop the reference. So, we take another
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* reference here to live within the state. */
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state->fb = drm_fb_ref(fb);
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state->in_fence_fd = ev->surface->acquire_fence_fd;
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/* In planes-only mode, we don't have an incremental state to
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* test against, so we just hope it'll work. */
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if (mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY) {
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drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
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"view %p on overlay %lu in planes-only mode\n",
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ev, (unsigned long) p->plane_id);
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availability = PLACED_ON_PLANE;
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goto out;
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}
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ret = drm_pending_state_test(output_state->pending_state);
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if (ret == 0) {
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drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
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"view %p on overlay %d in mixed mode\n",
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ev, p->plane_id);
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availability = PLACED_ON_PLANE;
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goto out;
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}
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay %lu "
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"in mixed mode: kernel test failed\n",
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ev, (unsigned long) p->plane_id);
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drm_plane_state_put_back(state);
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state = NULL;
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}
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switch (availability) {
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case NO_PLANES:
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
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"no free overlay planes\n", ev);
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break;
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case NO_PLANES_WITH_FORMAT:
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drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
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"no free overlay planes matching format %s (0x%lx) "
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"modifier 0x%llx\n",
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ev, fb->format->drm_format_name,
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(unsigned long) fb->format,
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(unsigned long long) fb->modifier);
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break;
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case NO_PLANES_ACCEPTED:
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case PLACED_ON_PLANE:
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break;
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}
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out:
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drm_fb_unref(fb);
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return state;
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}
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/**
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* Update the image for the current cursor surface
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*
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* @param plane_state DRM cursor plane state
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* @param ev Source view for cursor
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*/
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static void
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cursor_bo_update(struct drm_plane_state *plane_state, struct weston_view *ev)
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{
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struct drm_backend *b = plane_state->plane->backend;
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struct gbm_bo *bo = plane_state->fb->bo;
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struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
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uint32_t buf[b->cursor_width * b->cursor_height];
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int32_t stride;
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uint8_t *s;
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int i;
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assert(buffer && buffer->shm_buffer);
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assert(buffer->shm_buffer == wl_shm_buffer_get(buffer->resource));
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assert(buffer->width <= b->cursor_width);
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assert(buffer->height <= b->cursor_height);
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memset(buf, 0, sizeof buf);
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stride = wl_shm_buffer_get_stride(buffer->shm_buffer);
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s = wl_shm_buffer_get_data(buffer->shm_buffer);
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wl_shm_buffer_begin_access(buffer->shm_buffer);
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for (i = 0; i < buffer->height; i++)
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memcpy(buf + i * b->cursor_width,
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s + i * stride,
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buffer->width * 4);
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wl_shm_buffer_end_access(buffer->shm_buffer);
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if (gbm_bo_write(bo, buf, sizeof buf) < 0)
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weston_log("failed update cursor: %s\n", strerror(errno));
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}
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static struct drm_plane_state *
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drm_output_prepare_cursor_view(struct drm_output_state *output_state,
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struct weston_view *ev)
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{
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struct drm_output *output = output_state->output;
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struct drm_backend *b = to_drm_backend(output->base.compositor);
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struct drm_plane *plane = output->cursor_plane;
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struct drm_plane_state *plane_state;
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struct wl_shm_buffer *shmbuf;
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bool needs_update = false;
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assert(!b->cursors_are_broken);
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if (!plane)
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return NULL;
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if (!plane->state_cur->complete)
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return NULL;
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if (plane->state_cur->output && plane->state_cur->output != output)
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return NULL;
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/* We use GBM to import SHM buffers. */
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if (b->gbm == NULL)
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return NULL;
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if (ev->surface->buffer_ref.buffer == NULL) {
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drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
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"(no buffer available)\n", ev);
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return NULL;
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}
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shmbuf = wl_shm_buffer_get(ev->surface->buffer_ref.buffer->resource);
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if (!shmbuf) {
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drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
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"(buffer isn't SHM)\n", ev);
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return NULL;
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}
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if (wl_shm_buffer_get_format(shmbuf) != WL_SHM_FORMAT_ARGB8888) {
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drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
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"(format 0x%lx unsuitable)\n",
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ev, (unsigned long) wl_shm_buffer_get_format(shmbuf));
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return NULL;
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}
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plane_state =
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drm_output_state_get_plane(output_state, output->cursor_plane);
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if (plane_state && plane_state->fb)
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return NULL;
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/* We can't scale with the legacy API, and we don't try to account for
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* simple cropping/translation in cursor_bo_update. */
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plane_state->output = output;
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if (!drm_plane_state_coords_for_view(plane_state, ev))
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goto err;
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if (plane_state->src_x != 0 || plane_state->src_y != 0 ||
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plane_state->src_w > (unsigned) b->cursor_width << 16 ||
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plane_state->src_h > (unsigned) b->cursor_height << 16 ||
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plane_state->src_w != plane_state->dest_w << 16 ||
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plane_state->src_h != plane_state->dest_h << 16) {
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drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
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"(positioning requires cropping or scaling)\n", ev);
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goto err;
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}
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/* Since we're setting plane state up front, we need to work out
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* whether or not we need to upload a new cursor. We can't use the
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* plane damage, since the planes haven't actually been calculated
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* yet: instead try to figure it out directly. KMS cursor planes are
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* pretty unique here, in that they lie partway between a Weston plane
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* (direct scanout) and a renderer. */
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if (ev != output->cursor_view ||
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pixman_region32_not_empty(&ev->surface->damage)) {
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output->current_cursor++;
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output->current_cursor =
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output->current_cursor %
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ARRAY_LENGTH(output->gbm_cursor_fb);
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needs_update = true;
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}
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output->cursor_view = ev;
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plane_state->ev = ev;
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plane_state->fb =
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drm_fb_ref(output->gbm_cursor_fb[output->current_cursor]);
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if (needs_update) {
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drm_debug(b, "\t\t\t\t[cursor] copying new content to cursor BO\n");
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cursor_bo_update(plane_state, ev);
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}
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/* The cursor API is somewhat special: in cursor_bo_update(), we upload
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* a buffer which is always cursor_width x cursor_height, even if the
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* surface we want to promote is actually smaller than this. Manually
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* mangle the plane state to deal with this. */
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plane_state->src_w = b->cursor_width << 16;
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plane_state->src_h = b->cursor_height << 16;
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plane_state->dest_w = b->cursor_width;
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plane_state->dest_h = b->cursor_height;
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drm_debug(b, "\t\t\t\t[cursor] provisionally assigned view %p to cursor\n",
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ev);
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return plane_state;
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err:
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drm_plane_state_put_back(plane_state);
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return NULL;
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}
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static struct drm_plane_state *
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drm_output_prepare_scanout_view(struct drm_output_state *output_state,
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struct weston_view *ev,
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enum drm_output_propose_state_mode mode)
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{
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struct drm_output *output = output_state->output;
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struct drm_backend *b = to_drm_backend(output->base.compositor);
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struct drm_plane *scanout_plane = output->scanout_plane;
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struct drm_plane_state *state;
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struct drm_fb *fb;
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pixman_box32_t *extents;
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assert(!b->sprites_are_broken);
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assert(b->atomic_modeset);
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assert(mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
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/* Check the view spans exactly the output size, calculated in the
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* logical co-ordinate space. */
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extents = pixman_region32_extents(&ev->transform.boundingbox);
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if (extents->x1 != output->base.x ||
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extents->y1 != output->base.y ||
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extents->x2 != output->base.x + output->base.width ||
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extents->y2 != output->base.y + output->base.height)
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return NULL;
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/* If the surface buffer has an in-fence fd, but the plane doesn't
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* support fences, we can't place the buffer on this plane. */
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if (ev->surface->acquire_fence_fd >= 0 &&
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scanout_plane->props[WDRM_PLANE_IN_FENCE_FD].prop_id == 0)
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return NULL;
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fb = drm_fb_get_from_view(output_state, ev);
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if (!fb) {
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drm_debug(b, "\t\t\t\t[scanout] not placing view %p on scanout: "
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" couldn't get fb\n", ev);
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return NULL;
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}
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state = drm_output_state_get_plane(output_state, scanout_plane);
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/* The only way we can already have a buffer in the scanout plane is
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* if we are in mixed mode, or if a client buffer has already been
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* placed into scanout. The former case will never call into here,
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* and in the latter case, the view must have been marked as occluded,
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* meaning we should never have ended up here. */
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assert(!state->fb);
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state->fb = fb;
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state->ev = ev;
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state->output = output;
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if (!drm_plane_state_coords_for_view(state, ev))
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goto err;
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if (state->dest_x != 0 || state->dest_y != 0 ||
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state->dest_w != (unsigned) output->base.current_mode->width ||
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state->dest_h != (unsigned) output->base.current_mode->height)
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goto err;
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state->in_fence_fd = ev->surface->acquire_fence_fd;
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/* In plane-only mode, we don't need to test the state now, as we
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* will only test it once at the end. */
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return state;
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err:
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drm_plane_state_put_back(state);
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return NULL;
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}
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|
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static struct drm_output_state *
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drm_output_propose_state(struct weston_output *output_base,
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struct drm_pending_state *pending_state,
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enum drm_output_propose_state_mode mode)
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{
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struct drm_output *output = to_drm_output(output_base);
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struct drm_backend *b = to_drm_backend(output->base.compositor);
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struct drm_output_state *state;
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struct drm_plane_state *scanout_state = NULL;
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struct weston_view *ev;
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pixman_region32_t surface_overlap, renderer_region, occluded_region;
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bool planes_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY);
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bool renderer_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
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int ret;
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|
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assert(!output->state_last);
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
|
|
/* We implement mixed mode by progressively creating and testing
|
|
* incremental states, of scanout + overlay + cursor. Since we
|
|
* walk our views top to bottom, the scanout plane is last, however
|
|
* we always need it in our scene for the test modeset to be
|
|
* meaningful. To do this, we steal a reference to the last
|
|
* renderer framebuffer we have, if we think it's basically
|
|
* compatible. If we don't have that, then we conservatively fall
|
|
* back to only using the renderer for this repaint. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_MIXED) {
|
|
struct drm_plane *plane = output->scanout_plane;
|
|
struct drm_fb *scanout_fb = plane->state_cur->fb;
|
|
|
|
if (!scanout_fb ||
|
|
(scanout_fb->type != BUFFER_GBM_SURFACE &&
|
|
scanout_fb->type != BUFFER_PIXMAN_DUMB)) {
|
|
drm_debug(b, "\t\t[state] cannot propose mixed mode: "
|
|
"for output %s (%lu): no previous renderer "
|
|
"fb\n",
|
|
output->base.name,
|
|
(unsigned long) output->base.id);
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
if (scanout_fb->width != output_base->current_mode->width ||
|
|
scanout_fb->height != output_base->current_mode->height) {
|
|
drm_debug(b, "\t\t[state] cannot propose mixed mode "
|
|
"for output %s (%lu): previous fb has "
|
|
"different size\n",
|
|
output->base.name,
|
|
(unsigned long) output->base.id);
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
scanout_state = drm_plane_state_duplicate(state,
|
|
plane->state_cur);
|
|
drm_debug(b, "\t\t[state] using renderer FB ID %lu for mixed "
|
|
"mode for output %s (%lu)\n",
|
|
(unsigned long) scanout_fb->fb_id, output->base.name,
|
|
(unsigned long) output->base.id);
|
|
}
|
|
|
|
/*
|
|
* Find a surface for each sprite in the output using some heuristics:
|
|
* 1) size
|
|
* 2) frequency of update
|
|
* 3) opacity (though some hw might support alpha blending)
|
|
* 4) clipping (this can be fixed with color keys)
|
|
*
|
|
* The idea is to save on blitting since this should save power.
|
|
* If we can get a large video surface on the sprite for example,
|
|
* the main display surface may not need to update at all, and
|
|
* the client buffer can be used directly for the sprite surface
|
|
* as we do for flipping full screen surfaces.
|
|
*/
|
|
pixman_region32_init(&renderer_region);
|
|
pixman_region32_init(&occluded_region);
|
|
|
|
wl_list_for_each(ev, &output_base->compositor->view_list, link) {
|
|
struct drm_plane_state *ps = NULL;
|
|
bool force_renderer = false;
|
|
pixman_region32_t clipped_view;
|
|
bool totally_occluded = false;
|
|
bool overlay_occluded = false;
|
|
|
|
drm_debug(b, "\t\t\t[view] evaluating view %p for "
|
|
"output %s (%lu)\n",
|
|
ev, output->base.name,
|
|
(unsigned long) output->base.id);
|
|
|
|
/* If this view doesn't touch our output at all, there's no
|
|
* reason to do anything with it. */
|
|
if (!(ev->output_mask & (1u << output->base.id))) {
|
|
drm_debug(b, "\t\t\t\t[view] ignoring view %p "
|
|
"(not on our output)\n", ev);
|
|
continue;
|
|
}
|
|
|
|
/* We only assign planes to views which are exclusively present
|
|
* on our output. */
|
|
if (ev->output_mask != (1u << output->base.id)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(on multiple outputs)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
if (!ev->surface->buffer_ref.buffer) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(no buffer available)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* Ignore views we know to be totally occluded. */
|
|
pixman_region32_init(&clipped_view);
|
|
pixman_region32_intersect(&clipped_view,
|
|
&ev->transform.boundingbox,
|
|
&output->base.region);
|
|
|
|
pixman_region32_init(&surface_overlap);
|
|
pixman_region32_subtract(&surface_overlap, &clipped_view,
|
|
&occluded_region);
|
|
totally_occluded = !pixman_region32_not_empty(&surface_overlap);
|
|
if (totally_occluded) {
|
|
drm_debug(b, "\t\t\t\t[view] ignoring view %p "
|
|
"(occluded on our output)\n", ev);
|
|
pixman_region32_fini(&surface_overlap);
|
|
pixman_region32_fini(&clipped_view);
|
|
continue;
|
|
}
|
|
|
|
/* Since we process views from top to bottom, we know that if
|
|
* the view intersects the calculated renderer region, it must
|
|
* be part of, or occluded by, it, and cannot go on a plane. */
|
|
pixman_region32_intersect(&surface_overlap, &renderer_region,
|
|
&clipped_view);
|
|
if (pixman_region32_not_empty(&surface_overlap)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(occluded by renderer views)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* In case of enforced mode of content-protection do not
|
|
* assign planes for a protected surface on an unsecured output.
|
|
*/
|
|
if (ev->surface->protection_mode == WESTON_SURFACE_PROTECTION_MODE_ENFORCED &&
|
|
ev->surface->desired_protection > output_base->current_protection) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(enforced protection mode on unsecured output)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* We do not control the stacking order of overlay planes;
|
|
* the scanout plane is strictly stacked bottom and the cursor
|
|
* plane top, but the ordering of overlay planes with respect
|
|
* to each other is undefined. Make sure we do not have two
|
|
* planes overlapping each other. */
|
|
pixman_region32_intersect(&surface_overlap, &occluded_region,
|
|
&clipped_view);
|
|
if (pixman_region32_not_empty(&surface_overlap)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(occluded by other overlay planes)\n", ev);
|
|
overlay_occluded = true;
|
|
}
|
|
pixman_region32_fini(&surface_overlap);
|
|
|
|
/* The cursor plane is 'special' in the sense that we can still
|
|
* place it in the legacy API, and we gate that with a separate
|
|
* cursors_are_broken flag. */
|
|
if (!force_renderer && !overlay_occluded && !b->cursors_are_broken)
|
|
ps = drm_output_prepare_cursor_view(state, ev);
|
|
|
|
/* If sprites are disabled or the view is not fully opaque, we
|
|
* must put the view into the renderer - unless it has already
|
|
* been placed in the cursor plane, which can handle alpha. */
|
|
if (!ps && !planes_ok) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(precluded by mode)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
if (!ps && !weston_view_is_opaque(ev, &clipped_view)) {
|
|
drm_debug(b, "\t\t\t\t[view] not assigning view %p to plane "
|
|
"(view not fully opaque)\n", ev);
|
|
force_renderer = true;
|
|
}
|
|
|
|
/* Only try to place scanout surfaces in planes-only mode; in
|
|
* mixed mode, we have already failed to place a view on the
|
|
* scanout surface, forcing usage of the renderer on the
|
|
* scanout plane. */
|
|
if (!ps && !force_renderer && !renderer_ok)
|
|
ps = drm_output_prepare_scanout_view(state, ev, mode);
|
|
|
|
if (!ps && !overlay_occluded && !force_renderer)
|
|
ps = drm_output_prepare_overlay_view(state, ev, mode);
|
|
|
|
if (ps) {
|
|
/* If we have been assigned to an overlay or scanout
|
|
* plane, add this area to the occluded region, so
|
|
* other views are known to be behind it. The cursor
|
|
* plane, however, is special, in that it blends with
|
|
* the content underneath it: the area should neither
|
|
* be added to the renderer region nor the occluded
|
|
* region. */
|
|
if (ps->plane->type != WDRM_PLANE_TYPE_CURSOR) {
|
|
pixman_region32_union(&occluded_region,
|
|
&occluded_region,
|
|
&clipped_view);
|
|
pixman_region32_fini(&clipped_view);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* We have been assigned to the primary (renderer) plane:
|
|
* check if this is OK, and add ourselves to the renderer
|
|
* region if so. */
|
|
if (!renderer_ok) {
|
|
drm_debug(b, "\t\t[view] failing state generation: "
|
|
"placing view %p to renderer not allowed\n",
|
|
ev);
|
|
pixman_region32_fini(&clipped_view);
|
|
goto err_region;
|
|
}
|
|
|
|
pixman_region32_union(&renderer_region,
|
|
&renderer_region,
|
|
&clipped_view);
|
|
pixman_region32_fini(&clipped_view);
|
|
}
|
|
pixman_region32_fini(&renderer_region);
|
|
pixman_region32_fini(&occluded_region);
|
|
|
|
/* In renderer-only mode, we can't test the state as we don't have a
|
|
* renderer buffer yet. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY)
|
|
return state;
|
|
|
|
/* Check to see if this state will actually work. */
|
|
ret = drm_pending_state_test(state->pending_state);
|
|
if (ret != 0) {
|
|
drm_debug(b, "\t\t[view] failing state generation: "
|
|
"atomic test not OK\n");
|
|
goto err;
|
|
}
|
|
|
|
/* Counterpart to duplicating scanout state at the top of this
|
|
* function: if we have taken a renderer framebuffer and placed it in
|
|
* the pending state in order to incrementally test overlay planes,
|
|
* remove it now. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_MIXED) {
|
|
assert(scanout_state->fb->type == BUFFER_GBM_SURFACE ||
|
|
scanout_state->fb->type == BUFFER_PIXMAN_DUMB);
|
|
drm_plane_state_put_back(scanout_state);
|
|
}
|
|
return state;
|
|
|
|
err_region:
|
|
pixman_region32_fini(&renderer_region);
|
|
pixman_region32_fini(&occluded_region);
|
|
err:
|
|
drm_output_state_free(state);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
drm_assign_planes(struct weston_output *output_base, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_plane_state *plane_state;
|
|
struct weston_view *ev;
|
|
struct weston_plane *primary = &output_base->compositor->primary_plane;
|
|
enum drm_output_propose_state_mode mode = DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY;
|
|
|
|
drm_debug(b, "\t[repaint] preparing state for output %s (%lu)\n",
|
|
output_base->name, (unsigned long) output_base->id);
|
|
|
|
if (!b->sprites_are_broken && !output->virtual) {
|
|
drm_debug(b, "\t[repaint] trying planes-only build state\n");
|
|
state = drm_output_propose_state(output_base, pending_state, mode);
|
|
if (!state) {
|
|
drm_debug(b, "\t[repaint] could not build planes-only "
|
|
"state, trying mixed\n");
|
|
mode = DRM_OUTPUT_PROPOSE_STATE_MIXED;
|
|
state = drm_output_propose_state(output_base,
|
|
pending_state,
|
|
mode);
|
|
}
|
|
if (!state) {
|
|
drm_debug(b, "\t[repaint] could not build mixed-mode "
|
|
"state, trying renderer-only\n");
|
|
}
|
|
} else {
|
|
drm_debug(b, "\t[state] no overlay plane support\n");
|
|
}
|
|
|
|
if (!state) {
|
|
mode = DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY;
|
|
state = drm_output_propose_state(output_base, pending_state,
|
|
mode);
|
|
}
|
|
|
|
assert(state);
|
|
drm_debug(b, "\t[repaint] Using %s composition\n",
|
|
drm_propose_state_mode_to_string(mode));
|
|
|
|
wl_list_for_each(ev, &output_base->compositor->view_list, link) {
|
|
struct drm_plane *target_plane = NULL;
|
|
|
|
/* If this view doesn't touch our output at all, there's no
|
|
* reason to do anything with it. */
|
|
if (!(ev->output_mask & (1u << output->base.id)))
|
|
continue;
|
|
|
|
/* Test whether this buffer can ever go into a plane:
|
|
* non-shm, or small enough to be a cursor.
|
|
*
|
|
* Also, keep a reference when using the pixman renderer.
|
|
* That makes it possible to do a seamless switch to the GL
|
|
* renderer and since the pixman renderer keeps a reference
|
|
* to the buffer anyway, there is no side effects.
|
|
*/
|
|
if (b->use_pixman ||
|
|
(ev->surface->buffer_ref.buffer &&
|
|
(!wl_shm_buffer_get(ev->surface->buffer_ref.buffer->resource) ||
|
|
(ev->surface->width <= b->cursor_width &&
|
|
ev->surface->height <= b->cursor_height))))
|
|
ev->surface->keep_buffer = true;
|
|
else
|
|
ev->surface->keep_buffer = false;
|
|
|
|
/* This is a bit unpleasant, but lacking a temporary place to
|
|
* hang a plane off the view, we have to do a nested walk.
|
|
* Our first-order iteration has to be planes rather than
|
|
* views, because otherwise we won't reset views which were
|
|
* previously on planes to being on the primary plane. */
|
|
wl_list_for_each(plane_state, &state->plane_list, link) {
|
|
if (plane_state->ev == ev) {
|
|
plane_state->ev = NULL;
|
|
target_plane = plane_state->plane;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (target_plane) {
|
|
drm_debug(b, "\t[repaint] view %p on %s plane %lu\n",
|
|
ev, plane_type_enums[target_plane->type].name,
|
|
(unsigned long) target_plane->plane_id);
|
|
weston_view_move_to_plane(ev, &target_plane->base);
|
|
} else {
|
|
drm_debug(b, "\t[repaint] view %p using renderer "
|
|
"composition\n", ev);
|
|
weston_view_move_to_plane(ev, primary);
|
|
}
|
|
|
|
if (!target_plane ||
|
|
target_plane->type == WDRM_PLANE_TYPE_CURSOR) {
|
|
/* cursor plane & renderer involve a copy */
|
|
ev->psf_flags = 0;
|
|
} else {
|
|
/* All other planes are a direct scanout of a
|
|
* single client buffer.
|
|
*/
|
|
ev->psf_flags = WP_PRESENTATION_FEEDBACK_KIND_ZERO_COPY;
|
|
}
|
|
}
|
|
|
|
/* We rely on output->cursor_view being both an accurate reflection of
|
|
* the cursor plane's state, but also being maintained across repaints
|
|
* to avoid unnecessary damage uploads, per the comment in
|
|
* drm_output_prepare_cursor_view. In the event that we go from having
|
|
* a cursor view to not having a cursor view, we need to clear it. */
|
|
if (output->cursor_view) {
|
|
plane_state =
|
|
drm_output_state_get_existing_plane(state,
|
|
output->cursor_plane);
|
|
if (!plane_state || !plane_state->fb)
|
|
output->cursor_view = NULL;
|
|
}
|
|
}
|