7580b3c09e
Move everything to do with creation, destruction, and reference handling of drm_fbs to a new file. Signed-off-by: Daniel Stone <daniels@collabora.com>
4604 lines
125 KiB
C
4604 lines
125 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 <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/input.h>
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#include <linux/vt.h>
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#include <assert.h>
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#include <sys/mman.h>
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#include <dlfcn.h>
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#include <time.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <drm_fourcc.h>
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#include <gbm.h>
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#include <libudev.h>
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#include <libweston/libweston.h>
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#include <libweston/backend-drm.h>
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#include <libweston/weston-debug.h>
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#include "drm-internal.h"
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#include "shared/helpers.h"
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#include "shared/timespec-util.h"
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#include "renderer-gl/gl-renderer.h"
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#include "weston-egl-ext.h"
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#include "pixman-renderer.h"
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#include "pixel-formats.h"
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#include "libbacklight.h"
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#include "libinput-seat.h"
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#include "launcher-util.h"
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#include "vaapi-recorder.h"
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#include "presentation-time-server-protocol.h"
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#include "linux-dmabuf.h"
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#include "linux-dmabuf-unstable-v1-server-protocol.h"
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#include "linux-explicit-synchronization.h"
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/**
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* Mode for drm_output_state_duplicate.
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*/
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enum drm_output_state_duplicate_mode {
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DRM_OUTPUT_STATE_CLEAR_PLANES, /**< reset all planes to off */
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DRM_OUTPUT_STATE_PRESERVE_PLANES, /**< preserve plane state */
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};
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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 struct gl_renderer_interface *gl_renderer;
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static const char default_seat[] = "seat0";
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static void
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wl_array_remove_uint32(struct wl_array *array, uint32_t elm)
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{
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uint32_t *pos, *end;
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end = (uint32_t *) ((char *) array->data + array->size);
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wl_array_for_each(pos, array) {
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if (*pos != elm)
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continue;
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array->size -= sizeof(*pos);
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if (pos + 1 == end)
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break;
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memmove(pos, pos + 1, (char *) end - (char *) (pos + 1));
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break;
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}
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}
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static int
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pageflip_timeout(void *data) {
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/*
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* Our timer just went off, that means we're not receiving drm
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* page flip events anymore for that output. Let's gracefully exit
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* weston with a return value so devs can debug what's going on.
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*/
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struct drm_output *output = data;
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struct weston_compositor *compositor = output->base.compositor;
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weston_log("Pageflip timeout reached on output %s, your "
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"driver is probably buggy! Exiting.\n",
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output->base.name);
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weston_compositor_exit_with_code(compositor, EXIT_FAILURE);
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return 0;
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}
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/* Creates the pageflip timer. Note that it isn't armed by default */
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static int
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drm_output_pageflip_timer_create(struct drm_output *output)
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{
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struct wl_event_loop *loop = NULL;
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struct weston_compositor *ec = output->base.compositor;
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loop = wl_display_get_event_loop(ec->wl_display);
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assert(loop);
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output->pageflip_timer = wl_event_loop_add_timer(loop,
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pageflip_timeout,
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output);
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if (output->pageflip_timer == NULL) {
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weston_log("creating drm pageflip timer failed: %s\n",
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strerror(errno));
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return -1;
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}
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return 0;
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}
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static void
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drm_output_destroy(struct weston_output *output_base);
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static void
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drm_virtual_output_destroy(struct weston_output *output_base);
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/**
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* Returns true if the plane can be used on the given output for its current
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* repaint cycle.
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*/
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static bool
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drm_plane_is_available(struct drm_plane *plane, struct drm_output *output)
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{
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assert(plane->state_cur);
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if (output->virtual)
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return false;
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/* The plane still has a request not yet completed by the kernel. */
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if (!plane->state_cur->complete)
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return false;
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/* The plane is still active on another output. */
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if (plane->state_cur->output && plane->state_cur->output != output)
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return false;
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/* Check whether the plane can be used with this CRTC; possible_crtcs
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* is a bitmask of CRTC indices (pipe), rather than CRTC object ID. */
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return !!(plane->possible_crtcs & (1 << output->pipe));
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}
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struct drm_output *
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drm_output_find_by_crtc(struct drm_backend *b, uint32_t crtc_id)
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{
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struct drm_output *output;
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wl_list_for_each(output, &b->compositor->output_list, base.link) {
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if (output->crtc_id == crtc_id)
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return output;
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}
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return NULL;
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}
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struct drm_head *
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drm_head_find_by_connector(struct drm_backend *backend, uint32_t connector_id)
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{
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struct weston_head *base;
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struct drm_head *head;
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wl_list_for_each(base,
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&backend->compositor->head_list, compositor_link) {
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head = to_drm_head(base);
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if (head->connector_id == connector_id)
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return head;
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}
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return NULL;
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}
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/**
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* Allocate a new, empty, plane state.
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*/
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static struct drm_plane_state *
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drm_plane_state_alloc(struct drm_output_state *state_output,
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struct drm_plane *plane)
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{
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struct drm_plane_state *state = zalloc(sizeof(*state));
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assert(state);
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state->output_state = state_output;
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state->plane = plane;
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state->in_fence_fd = -1;
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pixman_region32_init(&state->damage);
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/* Here we only add the plane state to the desired link, and not
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* set the member. Having an output pointer set means that the
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* plane will be displayed on the output; this won't be the case
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* when we go to disable a plane. In this case, it must be part of
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* the commit (and thus the output state), but the member must be
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* NULL, as it will not be on any output when the state takes
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* effect.
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*/
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if (state_output)
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wl_list_insert(&state_output->plane_list, &state->link);
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else
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wl_list_init(&state->link);
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return state;
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}
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/**
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* Free an existing plane state. As a special case, the state will not
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* normally be freed if it is the current state; see drm_plane_set_state.
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*/
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void
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drm_plane_state_free(struct drm_plane_state *state, bool force)
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{
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if (!state)
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return;
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wl_list_remove(&state->link);
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wl_list_init(&state->link);
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state->output_state = NULL;
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state->in_fence_fd = -1;
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pixman_region32_fini(&state->damage);
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if (force || state != state->plane->state_cur) {
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drm_fb_unref(state->fb);
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free(state);
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}
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}
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/**
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* Duplicate an existing plane state into a new plane state, storing it within
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* the given output state. If the output state already contains a plane state
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* for the drm_plane referenced by 'src', that plane state is freed first.
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*/
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static struct drm_plane_state *
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drm_plane_state_duplicate(struct drm_output_state *state_output,
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struct drm_plane_state *src)
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{
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struct drm_plane_state *dst = malloc(sizeof(*dst));
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struct drm_plane_state *old, *tmp;
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assert(src);
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assert(dst);
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*dst = *src;
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wl_list_init(&dst->link);
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wl_list_for_each_safe(old, tmp, &state_output->plane_list, link) {
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/* Duplicating a plane state into the same output state, so
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* it can replace itself with an identical copy of itself,
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* makes no sense. */
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assert(old != src);
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if (old->plane == dst->plane)
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drm_plane_state_free(old, false);
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}
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wl_list_insert(&state_output->plane_list, &dst->link);
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if (src->fb)
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dst->fb = drm_fb_ref(src->fb);
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dst->output_state = state_output;
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pixman_region32_init(&dst->damage);
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dst->complete = false;
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return dst;
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}
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/**
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* Remove a plane state from an output state; if the plane was previously
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* enabled, then replace it with a disabling state. This ensures that the
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* output state was untouched from it was before the plane state was
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* modified by the caller of this function.
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*
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* This is required as drm_output_state_get_plane may either allocate a
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* new plane state, in which case this function will just perform a matching
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* drm_plane_state_free, or it may instead repurpose an existing disabling
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* state (if the plane was previously active), in which case this function
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* will reset it.
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*/
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static void
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drm_plane_state_put_back(struct drm_plane_state *state)
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{
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struct drm_output_state *state_output;
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struct drm_plane *plane;
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if (!state)
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return;
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state_output = state->output_state;
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plane = state->plane;
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drm_plane_state_free(state, false);
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/* Plane was previously disabled; no need to keep this temporary
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* state around. */
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if (!plane->state_cur->fb)
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return;
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(void) drm_plane_state_alloc(state_output, plane);
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}
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/**
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* Given a weston_view, fill the drm_plane_state's co-ordinates to display on
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* a given plane.
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*/
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static bool
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drm_plane_state_coords_for_view(struct drm_plane_state *state,
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struct weston_view *ev)
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{
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struct drm_output *output = state->output;
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struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
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pixman_region32_t dest_rect, src_rect;
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pixman_box32_t *box, tbox;
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float sxf1, syf1, sxf2, syf2;
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if (!drm_view_transform_supported(ev, &output->base))
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return false;
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/* Update the base weston_plane co-ordinates. */
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box = pixman_region32_extents(&ev->transform.boundingbox);
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state->plane->base.x = box->x1;
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state->plane->base.y = box->y1;
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/* First calculate the destination co-ordinates by taking the
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* area of the view which is visible on this output, performing any
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* transforms to account for output rotation and scale as necessary. */
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pixman_region32_init(&dest_rect);
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pixman_region32_intersect(&dest_rect, &ev->transform.boundingbox,
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&output->base.region);
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pixman_region32_translate(&dest_rect, -output->base.x, -output->base.y);
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box = pixman_region32_extents(&dest_rect);
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tbox = weston_transformed_rect(output->base.width,
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output->base.height,
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output->base.transform,
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output->base.current_scale,
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*box);
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state->dest_x = tbox.x1;
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state->dest_y = tbox.y1;
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state->dest_w = tbox.x2 - tbox.x1;
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state->dest_h = tbox.y2 - tbox.y1;
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pixman_region32_fini(&dest_rect);
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/* Now calculate the source rectangle, by finding the extents of the
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* view, and working backwards to source co-ordinates. */
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pixman_region32_init(&src_rect);
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pixman_region32_intersect(&src_rect, &ev->transform.boundingbox,
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&output->base.region);
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box = pixman_region32_extents(&src_rect);
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weston_view_from_global_float(ev, box->x1, box->y1, &sxf1, &syf1);
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weston_surface_to_buffer_float(ev->surface, sxf1, syf1, &sxf1, &syf1);
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weston_view_from_global_float(ev, box->x2, box->y2, &sxf2, &syf2);
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weston_surface_to_buffer_float(ev->surface, sxf2, syf2, &sxf2, &syf2);
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pixman_region32_fini(&src_rect);
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/* Buffer transforms may mean that x2 is to the left of x1, and/or that
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* y2 is above y1. */
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if (sxf2 < sxf1) {
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double tmp = sxf1;
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sxf1 = sxf2;
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sxf2 = tmp;
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}
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if (syf2 < syf1) {
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double tmp = syf1;
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syf1 = syf2;
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syf2 = tmp;
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}
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/* Shift from S23.8 wl_fixed to U16.16 KMS fixed-point encoding. */
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state->src_x = wl_fixed_from_double(sxf1) << 8;
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state->src_y = wl_fixed_from_double(syf1) << 8;
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state->src_w = wl_fixed_from_double(sxf2 - sxf1) << 8;
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state->src_h = wl_fixed_from_double(syf2 - syf1) << 8;
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/* Clamp our source co-ordinates to surface bounds; it's possible
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* for intermediate translations to give us slightly incorrect
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* co-ordinates if we have, for example, multiple zooming
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* transformations. View bounding boxes are also explicitly rounded
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* greedily. */
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if (state->src_x < 0)
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state->src_x = 0;
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if (state->src_y < 0)
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state->src_y = 0;
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if (state->src_w > (uint32_t) ((buffer->width << 16) - state->src_x))
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state->src_w = (buffer->width << 16) - state->src_x;
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if (state->src_h > (uint32_t) ((buffer->height << 16) - state->src_y))
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state->src_h = (buffer->height << 16) - state->src_y;
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return true;
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}
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/**
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* Return a plane state from a drm_output_state.
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*/
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struct drm_plane_state *
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drm_output_state_get_existing_plane(struct drm_output_state *state_output,
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struct drm_plane *plane)
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{
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struct drm_plane_state *ps;
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wl_list_for_each(ps, &state_output->plane_list, link) {
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if (ps->plane == plane)
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return ps;
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}
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return NULL;
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}
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/**
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* Return a plane state from a drm_output_state, either existing or
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* freshly allocated.
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*/
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static struct drm_plane_state *
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drm_output_state_get_plane(struct drm_output_state *state_output,
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struct drm_plane *plane)
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{
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struct drm_plane_state *ps;
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ps = drm_output_state_get_existing_plane(state_output, plane);
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if (ps)
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return ps;
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return drm_plane_state_alloc(state_output, plane);
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}
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/**
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* Allocate a new, empty drm_output_state. This should not generally be used
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* in the repaint cycle; see drm_output_state_duplicate.
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*/
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static struct drm_output_state *
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drm_output_state_alloc(struct drm_output *output,
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struct drm_pending_state *pending_state)
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{
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struct drm_output_state *state = zalloc(sizeof(*state));
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assert(state);
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state->output = output;
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state->dpms = WESTON_DPMS_OFF;
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state->pending_state = pending_state;
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if (pending_state)
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wl_list_insert(&pending_state->output_list, &state->link);
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else
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wl_list_init(&state->link);
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wl_list_init(&state->plane_list);
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return state;
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}
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/**
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* Duplicate an existing drm_output_state into a new one. This is generally
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* used during the repaint cycle, to capture the existing state of an output
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* and modify it to create a new state to be used.
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*
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* The mode determines whether the output will be reset to an a blank state,
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* or an exact mirror of the current state.
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*/
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static struct drm_output_state *
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drm_output_state_duplicate(struct drm_output_state *src,
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struct drm_pending_state *pending_state,
|
|
enum drm_output_state_duplicate_mode plane_mode)
|
|
{
|
|
struct drm_output_state *dst = malloc(sizeof(*dst));
|
|
struct drm_plane_state *ps;
|
|
|
|
assert(dst);
|
|
|
|
/* Copy the whole structure, then individually modify the
|
|
* pending_state, as well as the list link into our pending
|
|
* state. */
|
|
*dst = *src;
|
|
|
|
dst->pending_state = pending_state;
|
|
if (pending_state)
|
|
wl_list_insert(&pending_state->output_list, &dst->link);
|
|
else
|
|
wl_list_init(&dst->link);
|
|
|
|
wl_list_init(&dst->plane_list);
|
|
|
|
wl_list_for_each(ps, &src->plane_list, link) {
|
|
/* Don't carry planes which are now disabled; these should be
|
|
* free for other outputs to reuse. */
|
|
if (!ps->output)
|
|
continue;
|
|
|
|
if (plane_mode == DRM_OUTPUT_STATE_CLEAR_PLANES)
|
|
(void) drm_plane_state_alloc(dst, ps->plane);
|
|
else
|
|
(void) drm_plane_state_duplicate(dst, ps);
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
/**
|
|
* Free an unused drm_output_state.
|
|
*/
|
|
void
|
|
drm_output_state_free(struct drm_output_state *state)
|
|
{
|
|
struct drm_plane_state *ps, *next;
|
|
|
|
if (!state)
|
|
return;
|
|
|
|
wl_list_for_each_safe(ps, next, &state->plane_list, link)
|
|
drm_plane_state_free(ps, false);
|
|
|
|
wl_list_remove(&state->link);
|
|
|
|
free(state);
|
|
}
|
|
|
|
/**
|
|
* Get output state to disable output
|
|
*
|
|
* Returns a pointer to an output_state object which can be used to disable
|
|
* an output (e.g. DPMS off).
|
|
*
|
|
* @param pending_state The pending state object owning this update
|
|
* @param output The output to disable
|
|
* @returns A drm_output_state to disable the output
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_output_get_disable_state(struct drm_pending_state *pending_state,
|
|
struct drm_output *output)
|
|
{
|
|
struct drm_output_state *output_state;
|
|
|
|
output_state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
output_state->dpms = WESTON_DPMS_OFF;
|
|
|
|
return output_state;
|
|
}
|
|
|
|
/**
|
|
* Allocate a new drm_pending_state
|
|
*
|
|
* Allocate a new, empty, 'pending state' structure to be used across a
|
|
* repaint cycle or similar.
|
|
*
|
|
* @param backend DRM backend
|
|
* @returns Newly-allocated pending state structure
|
|
*/
|
|
static struct drm_pending_state *
|
|
drm_pending_state_alloc(struct drm_backend *backend)
|
|
{
|
|
struct drm_pending_state *ret;
|
|
|
|
ret = calloc(1, sizeof(*ret));
|
|
if (!ret)
|
|
return NULL;
|
|
|
|
ret->backend = backend;
|
|
wl_list_init(&ret->output_list);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Free a drm_pending_state structure
|
|
*
|
|
* Frees a pending_state structure, as well as any output_states connected
|
|
* to this pending state.
|
|
*
|
|
* @param pending_state Pending state structure to free
|
|
*/
|
|
void
|
|
drm_pending_state_free(struct drm_pending_state *pending_state)
|
|
{
|
|
struct drm_output_state *output_state, *tmp;
|
|
|
|
if (!pending_state)
|
|
return;
|
|
|
|
wl_list_for_each_safe(output_state, tmp, &pending_state->output_list,
|
|
link) {
|
|
drm_output_state_free(output_state);
|
|
}
|
|
|
|
free(pending_state);
|
|
}
|
|
|
|
/**
|
|
* Find an output state in a pending state
|
|
*
|
|
* Given a pending_state structure, find the output_state for a particular
|
|
* output.
|
|
*
|
|
* @param pending_state Pending state structure to search
|
|
* @param output Output to find state for
|
|
* @returns Output state if present, or NULL if not
|
|
*/
|
|
static struct drm_output_state *
|
|
drm_pending_state_get_output(struct drm_pending_state *pending_state,
|
|
struct drm_output *output)
|
|
{
|
|
struct drm_output_state *output_state;
|
|
|
|
wl_list_for_each(output_state, &pending_state->output_list, link) {
|
|
if (output_state->output == output)
|
|
return output_state;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Mark a drm_output_state (the output's last state) as complete. This handles
|
|
* any post-completion actions such as updating the repaint timer, disabling the
|
|
* output, and finally freeing the state.
|
|
*/
|
|
void
|
|
drm_output_update_complete(struct drm_output *output, uint32_t flags,
|
|
unsigned int sec, unsigned int usec)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane_state *ps;
|
|
struct timespec ts;
|
|
|
|
/* Stop the pageflip timer instead of rearming it here */
|
|
if (output->pageflip_timer)
|
|
wl_event_source_timer_update(output->pageflip_timer, 0);
|
|
|
|
wl_list_for_each(ps, &output->state_cur->plane_list, link)
|
|
ps->complete = true;
|
|
|
|
drm_output_state_free(output->state_last);
|
|
output->state_last = NULL;
|
|
|
|
if (output->destroy_pending) {
|
|
output->destroy_pending = 0;
|
|
output->disable_pending = 0;
|
|
output->dpms_off_pending = 0;
|
|
drm_output_destroy(&output->base);
|
|
return;
|
|
} else if (output->disable_pending) {
|
|
output->disable_pending = 0;
|
|
output->dpms_off_pending = 0;
|
|
weston_output_disable(&output->base);
|
|
return;
|
|
} else if (output->dpms_off_pending) {
|
|
struct drm_pending_state *pending = drm_pending_state_alloc(b);
|
|
output->dpms_off_pending = 0;
|
|
drm_output_get_disable_state(pending, output);
|
|
drm_pending_state_apply_sync(pending);
|
|
} else if (output->state_cur->dpms == WESTON_DPMS_OFF &&
|
|
output->base.repaint_status != REPAINT_AWAITING_COMPLETION) {
|
|
/* DPMS can happen to us either in the middle of a repaint
|
|
* cycle (when we have painted fresh content, only to throw it
|
|
* away for DPMS off), or at any other random point. If the
|
|
* latter is true, then we cannot go through finish_frame,
|
|
* because the repaint machinery does not expect this. */
|
|
return;
|
|
}
|
|
|
|
ts.tv_sec = sec;
|
|
ts.tv_nsec = usec * 1000;
|
|
weston_output_finish_frame(&output->base, &ts, flags);
|
|
|
|
/* We can't call this from frame_notify, because the output's
|
|
* repaint needed flag is cleared just after that */
|
|
if (output->recorder)
|
|
weston_output_schedule_repaint(&output->base);
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_scanout_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_plane_state *state;
|
|
struct drm_fb *fb;
|
|
pixman_box32_t *extents;
|
|
|
|
assert(!b->sprites_are_broken);
|
|
assert(b->atomic_modeset);
|
|
assert(mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
|
|
|
|
/* Check the view spans exactly the output size, calculated in the
|
|
* logical co-ordinate space. */
|
|
extents = pixman_region32_extents(&ev->transform.boundingbox);
|
|
if (extents->x1 != output->base.x ||
|
|
extents->y1 != output->base.y ||
|
|
extents->x2 != output->base.x + output->base.width ||
|
|
extents->y2 != output->base.y + output->base.height)
|
|
return NULL;
|
|
|
|
/* If the surface buffer has an in-fence fd, but the plane doesn't
|
|
* support fences, we can't place the buffer on this plane. */
|
|
if (ev->surface->acquire_fence_fd >= 0 &&
|
|
scanout_plane->props[WDRM_PLANE_IN_FENCE_FD].prop_id == 0)
|
|
return NULL;
|
|
|
|
fb = drm_fb_get_from_view(output_state, ev);
|
|
if (!fb) {
|
|
drm_debug(b, "\t\t\t\t[scanout] not placing view %p on scanout: "
|
|
" couldn't get fb\n", ev);
|
|
return NULL;
|
|
}
|
|
|
|
state = drm_output_state_get_plane(output_state, scanout_plane);
|
|
|
|
/* The only way we can already have a buffer in the scanout plane is
|
|
* if we are in mixed mode, or if a client buffer has already been
|
|
* placed into scanout. The former case will never call into here,
|
|
* and in the latter case, the view must have been marked as occluded,
|
|
* meaning we should never have ended up here. */
|
|
assert(!state->fb);
|
|
state->fb = fb;
|
|
state->ev = ev;
|
|
state->output = output;
|
|
if (!drm_plane_state_coords_for_view(state, ev))
|
|
goto err;
|
|
|
|
if (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;
|
|
|
|
state->in_fence_fd = ev->surface->acquire_fence_fd;
|
|
|
|
/* In plane-only mode, we don't need to test the state now, as we
|
|
* will only test it once at the end. */
|
|
return state;
|
|
|
|
err:
|
|
drm_plane_state_put_back(state);
|
|
return NULL;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct gbm_bo *bo;
|
|
struct drm_fb *ret;
|
|
|
|
output->base.compositor->renderer->repaint_output(&output->base,
|
|
damage);
|
|
|
|
bo = gbm_surface_lock_front_buffer(output->gbm_surface);
|
|
if (!bo) {
|
|
weston_log("failed to lock front buffer: %s\n",
|
|
strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
/* The renderer always produces an opaque image. */
|
|
ret = drm_fb_get_from_bo(bo, b, true, BUFFER_GBM_SURFACE);
|
|
if (!ret) {
|
|
weston_log("failed to get drm_fb for bo\n");
|
|
gbm_surface_release_buffer(output->gbm_surface, bo);
|
|
return NULL;
|
|
}
|
|
ret->gbm_surface = output->gbm_surface;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct drm_fb *
|
|
drm_output_render_pixman(struct drm_output_state *state,
|
|
pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct weston_compositor *ec = output->base.compositor;
|
|
|
|
output->current_image ^= 1;
|
|
|
|
pixman_renderer_output_set_buffer(&output->base,
|
|
output->image[output->current_image]);
|
|
pixman_renderer_output_set_hw_extra_damage(&output->base,
|
|
&output->previous_damage);
|
|
|
|
ec->renderer->repaint_output(&output->base, damage);
|
|
|
|
pixman_region32_copy(&output->previous_damage, damage);
|
|
|
|
return drm_fb_ref(output->dumb[output->current_image]);
|
|
}
|
|
|
|
static void
|
|
drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
|
|
{
|
|
struct drm_output *output = state->output;
|
|
struct weston_compositor *c = output->base.compositor;
|
|
struct drm_plane_state *scanout_state;
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_backend *b = to_drm_backend(c);
|
|
struct drm_fb *fb;
|
|
|
|
/* If we already have a client buffer promoted to scanout, then we don't
|
|
* want to render. */
|
|
scanout_state = drm_output_state_get_plane(state,
|
|
output->scanout_plane);
|
|
if (scanout_state->fb)
|
|
return;
|
|
|
|
if (!pixman_region32_not_empty(damage) &&
|
|
scanout_plane->state_cur->fb &&
|
|
(scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE ||
|
|
scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) &&
|
|
scanout_plane->state_cur->fb->width ==
|
|
output->base.current_mode->width &&
|
|
scanout_plane->state_cur->fb->height ==
|
|
output->base.current_mode->height) {
|
|
fb = drm_fb_ref(scanout_plane->state_cur->fb);
|
|
} else if (b->use_pixman) {
|
|
fb = drm_output_render_pixman(state, damage);
|
|
} else {
|
|
fb = drm_output_render_gl(state, damage);
|
|
}
|
|
|
|
if (!fb) {
|
|
drm_plane_state_put_back(scanout_state);
|
|
return;
|
|
}
|
|
|
|
scanout_state->fb = fb;
|
|
scanout_state->output = output;
|
|
|
|
scanout_state->src_x = 0;
|
|
scanout_state->src_y = 0;
|
|
scanout_state->src_w = output->base.current_mode->width << 16;
|
|
scanout_state->src_h = output->base.current_mode->height << 16;
|
|
|
|
scanout_state->dest_x = 0;
|
|
scanout_state->dest_y = 0;
|
|
scanout_state->dest_w = scanout_state->src_w >> 16;
|
|
scanout_state->dest_h = scanout_state->src_h >> 16;
|
|
|
|
pixman_region32_copy(&scanout_state->damage, damage);
|
|
if (output->base.zoom.active) {
|
|
weston_matrix_transform_region(&scanout_state->damage,
|
|
&output->base.matrix,
|
|
&scanout_state->damage);
|
|
} else {
|
|
pixman_region32_translate(&scanout_state->damage,
|
|
-output->base.x, -output->base.y);
|
|
weston_transformed_region(output->base.width,
|
|
output->base.height,
|
|
output->base.transform,
|
|
output->base.current_scale,
|
|
&scanout_state->damage,
|
|
&scanout_state->damage);
|
|
}
|
|
|
|
pixman_region32_subtract(&c->primary_plane.damage,
|
|
&c->primary_plane.damage, damage);
|
|
}
|
|
|
|
|
|
static int
|
|
drm_output_repaint(struct weston_output *output_base,
|
|
pixman_region32_t *damage,
|
|
void *repaint_data)
|
|
{
|
|
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 *scanout_state;
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
goto err;
|
|
|
|
assert(!output->state_last);
|
|
|
|
/* If planes have been disabled in the core, we might not have
|
|
* hit assign_planes at all, so might not have valid output state
|
|
* here. */
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (!state)
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
state->dpms = WESTON_DPMS_ON;
|
|
|
|
drm_output_render(state, damage);
|
|
scanout_state = drm_output_state_get_plane(state,
|
|
output->scanout_plane);
|
|
if (!scanout_state || !scanout_state->fb)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
/* Determine the type of vblank synchronization to use for the output.
|
|
*
|
|
* The pipe parameter indicates which CRTC is in use. Knowing this, we
|
|
* can determine which vblank sequence type to use for it. Traditional
|
|
* cards had only two CRTCs, with CRTC 0 using no special flags, and
|
|
* CRTC 1 using DRM_VBLANK_SECONDARY. The first bit of the pipe
|
|
* parameter indicates this.
|
|
*
|
|
* Bits 1-5 of the pipe parameter are 5 bit wide pipe number between
|
|
* 0-31. If this is non-zero it indicates we're dealing with a
|
|
* multi-gpu situation and we need to calculate the vblank sync
|
|
* using DRM_BLANK_HIGH_CRTC_MASK.
|
|
*/
|
|
static unsigned int
|
|
drm_waitvblank_pipe(struct drm_output *output)
|
|
{
|
|
if (output->pipe > 1)
|
|
return (output->pipe << DRM_VBLANK_HIGH_CRTC_SHIFT) &
|
|
DRM_VBLANK_HIGH_CRTC_MASK;
|
|
else if (output->pipe > 0)
|
|
return DRM_VBLANK_SECONDARY;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_start_repaint_loop(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_pending_state *pending_state;
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_backend *backend =
|
|
to_drm_backend(output_base->compositor);
|
|
struct timespec ts, tnow;
|
|
struct timespec vbl2now;
|
|
int64_t refresh_nsec;
|
|
int ret;
|
|
drmVBlank vbl = {
|
|
.request.type = DRM_VBLANK_RELATIVE,
|
|
.request.sequence = 0,
|
|
.request.signal = 0,
|
|
};
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
return;
|
|
|
|
if (!output->scanout_plane->state_cur->fb) {
|
|
/* We can't page flip if there's no mode set */
|
|
goto finish_frame;
|
|
}
|
|
|
|
/* Need to smash all state in from scratch; current timings might not
|
|
* be what we want, page flip might not work, etc.
|
|
*/
|
|
if (backend->state_invalid)
|
|
goto finish_frame;
|
|
|
|
assert(scanout_plane->state_cur->output == output);
|
|
|
|
/* Try to get current msc and timestamp via instant query */
|
|
vbl.request.type |= drm_waitvblank_pipe(output);
|
|
ret = drmWaitVBlank(backend->drm.fd, &vbl);
|
|
|
|
/* Error ret or zero timestamp means failure to get valid timestamp */
|
|
if ((ret == 0) && (vbl.reply.tval_sec > 0 || vbl.reply.tval_usec > 0)) {
|
|
ts.tv_sec = vbl.reply.tval_sec;
|
|
ts.tv_nsec = vbl.reply.tval_usec * 1000;
|
|
|
|
/* Valid timestamp for most recent vblank - not stale?
|
|
* Stale ts could happen on Linux 3.17+, so make sure it
|
|
* is not older than 1 refresh duration since now.
|
|
*/
|
|
weston_compositor_read_presentation_clock(backend->compositor,
|
|
&tnow);
|
|
timespec_sub(&vbl2now, &tnow, &ts);
|
|
refresh_nsec =
|
|
millihz_to_nsec(output->base.current_mode->refresh);
|
|
if (timespec_to_nsec(&vbl2now) < refresh_nsec) {
|
|
drm_output_update_msc(output, vbl.reply.sequence);
|
|
weston_output_finish_frame(output_base, &ts,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Immediate query didn't provide valid timestamp.
|
|
* Use pageflip fallback.
|
|
*/
|
|
|
|
assert(!output->page_flip_pending);
|
|
assert(!output->state_last);
|
|
|
|
pending_state = drm_pending_state_alloc(backend);
|
|
drm_output_state_duplicate(output->state_cur, pending_state,
|
|
DRM_OUTPUT_STATE_PRESERVE_PLANES);
|
|
|
|
ret = drm_pending_state_apply(pending_state);
|
|
if (ret != 0) {
|
|
weston_log("applying repaint-start state failed: %s\n",
|
|
strerror(errno));
|
|
goto finish_frame;
|
|
}
|
|
|
|
return;
|
|
|
|
finish_frame:
|
|
/* if we cannot page-flip, immediately finish frame */
|
|
weston_output_finish_frame(output_base, NULL,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
}
|
|
|
|
/**
|
|
* Begin a new repaint cycle
|
|
*
|
|
* Called by the core compositor at the beginning of a repaint cycle. Creates
|
|
* a new pending_state structure to own any output state created by individual
|
|
* output repaint functions until the repaint is flushed or cancelled.
|
|
*/
|
|
static void *
|
|
drm_repaint_begin(struct weston_compositor *compositor)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *ret;
|
|
|
|
ret = drm_pending_state_alloc(b);
|
|
b->repaint_data = ret;
|
|
|
|
if (weston_log_scope_is_enabled(b->debug)) {
|
|
char *dbg = weston_compositor_print_scene_graph(compositor);
|
|
drm_debug(b, "[repaint] Beginning repaint; pending_state %p\n",
|
|
ret);
|
|
drm_debug(b, "%s", dbg);
|
|
free(dbg);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Flush a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint cycle has been completed
|
|
* and should be flushed. Frees the pending state, transitioning ownership
|
|
* of the output state from the pending state, to the update itself. When
|
|
* the update completes (see drm_output_update_complete), the output
|
|
* state will be freed.
|
|
*/
|
|
static void
|
|
drm_repaint_flush(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
|
|
drm_pending_state_apply(pending_state);
|
|
drm_debug(b, "[repaint] flushed pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
}
|
|
|
|
/**
|
|
* Cancel a repaint set
|
|
*
|
|
* Called by the core compositor when a repaint has finished, so the data
|
|
* held across the repaint cycle should be discarded.
|
|
*/
|
|
static void
|
|
drm_repaint_cancel(struct weston_compositor *compositor, void *repaint_data)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
|
|
drm_pending_state_free(pending_state);
|
|
drm_debug(b, "[repaint] cancel pending_state %p\n", pending_state);
|
|
b->repaint_data = NULL;
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_overlay_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct weston_compositor *ec = output->base.compositor;
|
|
struct drm_backend *b = to_drm_backend(ec);
|
|
struct drm_plane *p;
|
|
struct drm_plane_state *state = NULL;
|
|
struct drm_fb *fb;
|
|
unsigned int i;
|
|
int ret;
|
|
enum {
|
|
NO_PLANES,
|
|
NO_PLANES_WITH_FORMAT,
|
|
NO_PLANES_ACCEPTED,
|
|
PLACED_ON_PLANE,
|
|
} availability = NO_PLANES;
|
|
|
|
assert(!b->sprites_are_broken);
|
|
assert(b->atomic_modeset);
|
|
|
|
fb = drm_fb_get_from_view(output_state, ev);
|
|
if (!fb) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
" couldn't get fb\n", ev);
|
|
return NULL;
|
|
}
|
|
|
|
wl_list_for_each(p, &b->plane_list, link) {
|
|
if (p->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
if (!drm_plane_is_available(p, output))
|
|
continue;
|
|
|
|
state = drm_output_state_get_plane(output_state, p);
|
|
if (state->fb) {
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
if (availability == NO_PLANES)
|
|
availability = NO_PLANES_WITH_FORMAT;
|
|
|
|
/* Check whether the format is supported */
|
|
for (i = 0; i < p->count_formats; i++) {
|
|
unsigned int j;
|
|
|
|
if (p->formats[i].format != fb->format->format)
|
|
continue;
|
|
|
|
if (fb->modifier == DRM_FORMAT_MOD_INVALID)
|
|
break;
|
|
|
|
for (j = 0; j < p->formats[i].count_modifiers; j++) {
|
|
if (p->formats[i].modifiers[j] == fb->modifier)
|
|
break;
|
|
}
|
|
if (j != p->formats[i].count_modifiers)
|
|
break;
|
|
}
|
|
if (i == p->count_formats) {
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
if (availability == NO_PLANES_WITH_FORMAT)
|
|
availability = NO_PLANES_ACCEPTED;
|
|
|
|
state->ev = ev;
|
|
state->output = output;
|
|
if (!drm_plane_state_coords_for_view(state, ev)) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"unsuitable transform\n", ev);
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
/* If the surface buffer has an in-fence fd, but the plane
|
|
* doesn't support fences, we can't place the buffer on this
|
|
* plane. */
|
|
if (ev->surface->acquire_fence_fd >= 0 &&
|
|
p->props[WDRM_PLANE_IN_FENCE_FD].prop_id == 0) {
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no in-fence support\n", ev);
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
continue;
|
|
}
|
|
|
|
/* We hold one reference for the lifetime of this function;
|
|
* from calling drm_fb_get_from_view, to the out label where
|
|
* we unconditionally drop the reference. So, we take another
|
|
* reference here to live within the state. */
|
|
state->fb = drm_fb_ref(fb);
|
|
|
|
state->in_fence_fd = ev->surface->acquire_fence_fd;
|
|
|
|
/* In planes-only mode, we don't have an incremental state to
|
|
* test against, so we just hope it'll work. */
|
|
if (mode == DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY) {
|
|
drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
|
|
"view %p on overlay %lu in planes-only mode\n",
|
|
ev, (unsigned long) p->plane_id);
|
|
availability = PLACED_ON_PLANE;
|
|
goto out;
|
|
}
|
|
|
|
ret = drm_pending_state_test(output_state->pending_state);
|
|
if (ret == 0) {
|
|
drm_debug(b, "\t\t\t\t[overlay] provisionally placing "
|
|
"view %p on overlay %d in mixed mode\n",
|
|
ev, p->plane_id);
|
|
availability = PLACED_ON_PLANE;
|
|
goto out;
|
|
}
|
|
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay %lu "
|
|
"in mixed mode: kernel test failed\n",
|
|
ev, (unsigned long) p->plane_id);
|
|
|
|
drm_plane_state_put_back(state);
|
|
state = NULL;
|
|
}
|
|
|
|
switch (availability) {
|
|
case NO_PLANES:
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no free overlay planes\n", ev);
|
|
break;
|
|
case NO_PLANES_WITH_FORMAT:
|
|
drm_debug(b, "\t\t\t\t[overlay] not placing view %p on overlay: "
|
|
"no free overlay planes matching format %s (0x%lx) "
|
|
"modifier 0x%llx\n",
|
|
ev, fb->format->drm_format_name,
|
|
(unsigned long) fb->format,
|
|
(unsigned long long) fb->modifier);
|
|
break;
|
|
case NO_PLANES_ACCEPTED:
|
|
case PLACED_ON_PLANE:
|
|
break;
|
|
}
|
|
|
|
out:
|
|
drm_fb_unref(fb);
|
|
return state;
|
|
}
|
|
|
|
/**
|
|
* Update the image for the current cursor surface
|
|
*
|
|
* @param plane_state DRM cursor plane state
|
|
* @param ev Source view for cursor
|
|
*/
|
|
static void
|
|
cursor_bo_update(struct drm_plane_state *plane_state, struct weston_view *ev)
|
|
{
|
|
struct drm_backend *b = plane_state->plane->backend;
|
|
struct gbm_bo *bo = plane_state->fb->bo;
|
|
struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
|
|
uint32_t buf[b->cursor_width * b->cursor_height];
|
|
int32_t stride;
|
|
uint8_t *s;
|
|
int i;
|
|
|
|
assert(buffer && buffer->shm_buffer);
|
|
assert(buffer->shm_buffer == wl_shm_buffer_get(buffer->resource));
|
|
assert(buffer->width <= b->cursor_width);
|
|
assert(buffer->height <= b->cursor_height);
|
|
|
|
memset(buf, 0, sizeof buf);
|
|
stride = wl_shm_buffer_get_stride(buffer->shm_buffer);
|
|
s = wl_shm_buffer_get_data(buffer->shm_buffer);
|
|
|
|
wl_shm_buffer_begin_access(buffer->shm_buffer);
|
|
for (i = 0; i < buffer->height; i++)
|
|
memcpy(buf + i * b->cursor_width,
|
|
s + i * stride,
|
|
buffer->width * 4);
|
|
wl_shm_buffer_end_access(buffer->shm_buffer);
|
|
|
|
if (gbm_bo_write(bo, buf, sizeof buf) < 0)
|
|
weston_log("failed update cursor: %s\n", strerror(errno));
|
|
}
|
|
|
|
static struct drm_plane_state *
|
|
drm_output_prepare_cursor_view(struct drm_output_state *output_state,
|
|
struct weston_view *ev)
|
|
{
|
|
struct drm_output *output = output_state->output;
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_plane *plane = output->cursor_plane;
|
|
struct drm_plane_state *plane_state;
|
|
struct wl_shm_buffer *shmbuf;
|
|
bool needs_update = false;
|
|
|
|
assert(!b->cursors_are_broken);
|
|
|
|
if (!plane)
|
|
return NULL;
|
|
|
|
if (!plane->state_cur->complete)
|
|
return NULL;
|
|
|
|
if (plane->state_cur->output && plane->state_cur->output != output)
|
|
return NULL;
|
|
|
|
/* We use GBM to import SHM buffers. */
|
|
if (b->gbm == NULL)
|
|
return NULL;
|
|
|
|
if (ev->surface->buffer_ref.buffer == NULL) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(no buffer available)\n", ev);
|
|
return NULL;
|
|
}
|
|
shmbuf = wl_shm_buffer_get(ev->surface->buffer_ref.buffer->resource);
|
|
if (!shmbuf) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(buffer isn't SHM)\n", ev);
|
|
return NULL;
|
|
}
|
|
if (wl_shm_buffer_get_format(shmbuf) != WL_SHM_FORMAT_ARGB8888) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(format 0x%lx unsuitable)\n",
|
|
ev, (unsigned long) wl_shm_buffer_get_format(shmbuf));
|
|
return NULL;
|
|
}
|
|
|
|
plane_state =
|
|
drm_output_state_get_plane(output_state, output->cursor_plane);
|
|
|
|
if (plane_state && plane_state->fb)
|
|
return NULL;
|
|
|
|
/* We can't scale with the legacy API, and we don't try to account for
|
|
* simple cropping/translation in cursor_bo_update. */
|
|
plane_state->output = output;
|
|
if (!drm_plane_state_coords_for_view(plane_state, ev))
|
|
goto err;
|
|
|
|
if (plane_state->src_x != 0 || plane_state->src_y != 0 ||
|
|
plane_state->src_w > (unsigned) b->cursor_width << 16 ||
|
|
plane_state->src_h > (unsigned) b->cursor_height << 16 ||
|
|
plane_state->src_w != plane_state->dest_w << 16 ||
|
|
plane_state->src_h != plane_state->dest_h << 16) {
|
|
drm_debug(b, "\t\t\t\t[cursor] not assigning view %p to cursor plane "
|
|
"(positioning requires cropping or scaling)\n", ev);
|
|
goto err;
|
|
}
|
|
|
|
/* Since we're setting plane state up front, we need to work out
|
|
* whether or not we need to upload a new cursor. We can't use the
|
|
* plane damage, since the planes haven't actually been calculated
|
|
* yet: instead try to figure it out directly. KMS cursor planes are
|
|
* pretty unique here, in that they lie partway between a Weston plane
|
|
* (direct scanout) and a renderer. */
|
|
if (ev != output->cursor_view ||
|
|
pixman_region32_not_empty(&ev->surface->damage)) {
|
|
output->current_cursor++;
|
|
output->current_cursor =
|
|
output->current_cursor %
|
|
ARRAY_LENGTH(output->gbm_cursor_fb);
|
|
needs_update = true;
|
|
}
|
|
|
|
output->cursor_view = ev;
|
|
plane_state->ev = ev;
|
|
|
|
plane_state->fb =
|
|
drm_fb_ref(output->gbm_cursor_fb[output->current_cursor]);
|
|
|
|
if (needs_update) {
|
|
drm_debug(b, "\t\t\t\t[cursor] copying new content to cursor BO\n");
|
|
cursor_bo_update(plane_state, ev);
|
|
}
|
|
|
|
/* The cursor API is somewhat special: in cursor_bo_update(), we upload
|
|
* a buffer which is always cursor_width x cursor_height, even if the
|
|
* surface we want to promote is actually smaller than this. Manually
|
|
* mangle the plane state to deal with this. */
|
|
plane_state->src_w = b->cursor_width << 16;
|
|
plane_state->src_h = b->cursor_height << 16;
|
|
plane_state->dest_w = b->cursor_width;
|
|
plane_state->dest_h = b->cursor_height;
|
|
|
|
drm_debug(b, "\t\t\t\t[cursor] provisionally assigned view %p to cursor\n",
|
|
ev);
|
|
|
|
return plane_state;
|
|
|
|
err:
|
|
drm_plane_state_put_back(plane_state);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static struct drm_output_state *
|
|
drm_output_propose_state(struct weston_output *output_base,
|
|
struct drm_pending_state *pending_state,
|
|
enum drm_output_propose_state_mode mode)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
struct drm_output_state *state;
|
|
struct drm_plane_state *scanout_state = NULL;
|
|
struct weston_view *ev;
|
|
pixman_region32_t surface_overlap, renderer_region, occluded_region;
|
|
bool planes_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_RENDERER_ONLY);
|
|
bool renderer_ok = (mode != DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY);
|
|
int ret;
|
|
|
|
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;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
static const char *
|
|
drm_propose_state_mode_to_string(enum drm_output_propose_state_mode mode)
|
|
{
|
|
if (mode < 0 || mode >= ARRAY_LENGTH(drm_output_propose_state_mode_as_string))
|
|
return " unknown compositing mode";
|
|
|
|
return drm_output_propose_state_mode_as_string[mode];
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_init_egl(struct drm_output *output, struct drm_backend *b);
|
|
static void
|
|
drm_output_fini_egl(struct drm_output *output);
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b);
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output);
|
|
|
|
static int
|
|
drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_mode *drm_mode = drm_output_choose_mode(output, mode);
|
|
|
|
if (!drm_mode) {
|
|
weston_log("%s: invalid resolution %dx%d\n",
|
|
output_base->name, mode->width, mode->height);
|
|
return -1;
|
|
}
|
|
|
|
if (&drm_mode->base == output->base.current_mode)
|
|
return 0;
|
|
|
|
output->base.current_mode->flags = 0;
|
|
|
|
output->base.current_mode = &drm_mode->base;
|
|
output->base.current_mode->flags =
|
|
WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
|
|
|
|
/* XXX: This drops our current buffer too early, before we've started
|
|
* displaying it. Ideally this should be much more atomic and
|
|
* integrated with a full repaint cycle, rather than doing a
|
|
* sledgehammer modeswitch first, and only later showing new
|
|
* content.
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
if (b->use_pixman) {
|
|
drm_output_fini_pixman(output);
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("failed to init output pixman state with "
|
|
"new mode\n");
|
|
return -1;
|
|
}
|
|
} else {
|
|
drm_output_fini_egl(output);
|
|
if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("failed to init output egl state with "
|
|
"new mode");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct gbm_device *
|
|
create_gbm_device(int fd)
|
|
{
|
|
struct gbm_device *gbm;
|
|
|
|
gl_renderer = weston_load_module("gl-renderer.so",
|
|
"gl_renderer_interface");
|
|
if (!gl_renderer)
|
|
return NULL;
|
|
|
|
/* GBM will load a dri driver, but even though they need symbols from
|
|
* libglapi, in some version of Mesa they are not linked to it. Since
|
|
* only the gl-renderer module links to it, the call above won't make
|
|
* these symbols globally available, and loading the DRI driver fails.
|
|
* Workaround this by dlopen()'ing libglapi with RTLD_GLOBAL. */
|
|
dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL);
|
|
|
|
gbm = gbm_create_device(fd);
|
|
|
|
return gbm;
|
|
}
|
|
|
|
/* When initializing EGL, if the preferred buffer format isn't available
|
|
* we may be able to substitute an ARGB format for an XRGB one.
|
|
*
|
|
* This returns 0 if substitution isn't possible, but 0 might be a
|
|
* legitimate format for other EGL platforms, so the caller is
|
|
* responsible for checking for 0 before calling gl_renderer->create().
|
|
*
|
|
* This works around https://bugs.freedesktop.org/show_bug.cgi?id=89689
|
|
* but it's entirely possible we'll see this again on other implementations.
|
|
*/
|
|
static int
|
|
fallback_format_for(uint32_t format)
|
|
{
|
|
switch (format) {
|
|
case GBM_FORMAT_XRGB8888:
|
|
return GBM_FORMAT_ARGB8888;
|
|
case GBM_FORMAT_XRGB2101010:
|
|
return GBM_FORMAT_ARGB2101010;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_backend_create_gl_renderer(struct drm_backend *b)
|
|
{
|
|
EGLint format[3] = {
|
|
b->gbm_format,
|
|
fallback_format_for(b->gbm_format),
|
|
0,
|
|
};
|
|
int n_formats = 2;
|
|
|
|
if (format[1])
|
|
n_formats = 3;
|
|
if (gl_renderer->display_create(b->compositor,
|
|
EGL_PLATFORM_GBM_KHR,
|
|
(void *)b->gbm,
|
|
NULL,
|
|
gl_renderer->opaque_attribs,
|
|
format,
|
|
n_formats) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_egl(struct drm_backend *b)
|
|
{
|
|
b->gbm = create_gbm_device(b->drm.fd);
|
|
|
|
if (!b->gbm)
|
|
return -1;
|
|
|
|
if (drm_backend_create_gl_renderer(b) < 0) {
|
|
gbm_device_destroy(b->gbm);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_pixman(struct drm_backend *b)
|
|
{
|
|
return pixman_renderer_init(b->compositor);
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a drm_plane for a hardware plane
|
|
*
|
|
* Creates one drm_plane structure for a hardware plane, and initialises its
|
|
* properties and formats.
|
|
*
|
|
* In the absence of universal plane support, where KMS does not explicitly
|
|
* expose the primary and cursor planes to userspace, this may also create
|
|
* an 'internal' plane for internal management.
|
|
*
|
|
* This function does not add the plane to the list of usable planes in Weston
|
|
* itself; the caller is responsible for this.
|
|
*
|
|
* Call drm_plane_destroy to clean up the plane.
|
|
*
|
|
* @sa drm_output_find_special_plane
|
|
* @param b DRM compositor backend
|
|
* @param kplane DRM plane to create, or NULL if creating internal plane
|
|
* @param output Output to create internal plane for, or NULL
|
|
* @param type Type to use when creating internal plane, or invalid
|
|
* @param format Format to use for internal planes, or 0
|
|
*/
|
|
static struct drm_plane *
|
|
drm_plane_create(struct drm_backend *b, const drmModePlane *kplane,
|
|
struct drm_output *output, enum wdrm_plane_type type,
|
|
uint32_t format)
|
|
{
|
|
struct drm_plane *plane;
|
|
drmModeObjectProperties *props;
|
|
uint32_t num_formats = (kplane) ? kplane->count_formats : 1;
|
|
|
|
plane = zalloc(sizeof(*plane) +
|
|
(sizeof(plane->formats[0]) * num_formats));
|
|
if (!plane) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
plane->backend = b;
|
|
plane->count_formats = num_formats;
|
|
plane->state_cur = drm_plane_state_alloc(NULL, plane);
|
|
plane->state_cur->complete = true;
|
|
|
|
if (kplane) {
|
|
plane->possible_crtcs = kplane->possible_crtcs;
|
|
plane->plane_id = kplane->plane_id;
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, kplane->plane_id,
|
|
DRM_MODE_OBJECT_PLANE);
|
|
if (!props) {
|
|
weston_log("couldn't get plane properties\n");
|
|
goto err;
|
|
}
|
|
drm_property_info_populate(b, plane_props, plane->props,
|
|
WDRM_PLANE__COUNT, props);
|
|
plane->type =
|
|
drm_property_get_value(&plane->props[WDRM_PLANE_TYPE],
|
|
props,
|
|
WDRM_PLANE_TYPE__COUNT);
|
|
|
|
if (drm_plane_populate_formats(plane, kplane, props) < 0) {
|
|
drmModeFreeObjectProperties(props);
|
|
goto err;
|
|
}
|
|
|
|
drmModeFreeObjectProperties(props);
|
|
}
|
|
else {
|
|
plane->possible_crtcs = (1 << output->pipe);
|
|
plane->plane_id = 0;
|
|
plane->count_formats = 1;
|
|
plane->formats[0].format = format;
|
|
plane->type = type;
|
|
}
|
|
|
|
if (plane->type == WDRM_PLANE_TYPE__COUNT)
|
|
goto err_props;
|
|
|
|
/* With universal planes, everything is a DRM plane; without
|
|
* universal planes, the only DRM planes are overlay planes.
|
|
* Everything else is a fake plane. */
|
|
if (b->universal_planes) {
|
|
assert(kplane);
|
|
} else {
|
|
if (kplane)
|
|
assert(plane->type == WDRM_PLANE_TYPE_OVERLAY);
|
|
else
|
|
assert(plane->type != WDRM_PLANE_TYPE_OVERLAY &&
|
|
output);
|
|
}
|
|
|
|
weston_plane_init(&plane->base, b->compositor, 0, 0);
|
|
wl_list_insert(&b->plane_list, &plane->link);
|
|
|
|
return plane;
|
|
|
|
err_props:
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
err:
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
free(plane);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Find, or create, a special-purpose plane
|
|
*
|
|
* Primary and cursor planes are a special case, in that before universal
|
|
* planes, they are driven by non-plane API calls. Without universal plane
|
|
* support, the only way to configure a primary plane is via drmModeSetCrtc,
|
|
* and the only way to configure a cursor plane is drmModeSetCursor2.
|
|
*
|
|
* Although they may actually be regular planes in the hardware, without
|
|
* universal plane support, these planes are not actually exposed to
|
|
* userspace in the regular plane list.
|
|
*
|
|
* However, for ease of internal tracking, we want to manage all planes
|
|
* through the same drm_plane structures. Therefore, when we are running
|
|
* without universal plane support, we create fake drm_plane structures
|
|
* to track these planes.
|
|
*
|
|
* @param b DRM backend
|
|
* @param output Output to use for plane
|
|
* @param type Type of plane
|
|
*/
|
|
static struct drm_plane *
|
|
drm_output_find_special_plane(struct drm_backend *b, struct drm_output *output,
|
|
enum wdrm_plane_type type)
|
|
{
|
|
struct drm_plane *plane;
|
|
|
|
if (!b->universal_planes) {
|
|
uint32_t format;
|
|
|
|
switch (type) {
|
|
case WDRM_PLANE_TYPE_CURSOR:
|
|
format = GBM_FORMAT_ARGB8888;
|
|
break;
|
|
case WDRM_PLANE_TYPE_PRIMARY:
|
|
/* We don't know what formats the primary plane supports
|
|
* before universal planes, so we just assume that the
|
|
* GBM format works; however, this isn't set until after
|
|
* the output is created. */
|
|
format = 0;
|
|
break;
|
|
default:
|
|
assert(!"invalid type in drm_output_find_special_plane");
|
|
break;
|
|
}
|
|
|
|
return drm_plane_create(b, NULL, output, type, format);
|
|
}
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
struct drm_output *tmp;
|
|
bool found_elsewhere = false;
|
|
|
|
if (plane->type != type)
|
|
continue;
|
|
if (!drm_plane_is_available(plane, output))
|
|
continue;
|
|
|
|
/* On some platforms, primary/cursor planes can roam
|
|
* between different CRTCs, so make sure we don't claim the
|
|
* same plane for two outputs. */
|
|
wl_list_for_each(tmp, &b->compositor->output_list,
|
|
base.link) {
|
|
if (tmp->cursor_plane == plane ||
|
|
tmp->scanout_plane == plane) {
|
|
found_elsewhere = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found_elsewhere)
|
|
continue;
|
|
|
|
plane->possible_crtcs = (1 << output->pipe);
|
|
return plane;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Destroy one DRM plane
|
|
*
|
|
* Destroy a DRM plane, removing it from screen and releasing its retained
|
|
* buffers in the process. The counterpart to drm_plane_create.
|
|
*
|
|
* @param plane Plane to deallocate (will be freed)
|
|
*/
|
|
static void
|
|
drm_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
if (plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
drmModeSetPlane(plane->backend->drm.fd, plane->plane_id,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
drm_property_info_free(plane->props, WDRM_PLANE__COUNT);
|
|
weston_plane_release(&plane->base);
|
|
wl_list_remove(&plane->link);
|
|
free(plane);
|
|
}
|
|
|
|
/**
|
|
* Create a drm_plane for virtual output
|
|
*
|
|
* Call drm_virtual_plane_destroy to clean up the plane.
|
|
*
|
|
* @param b DRM compositor backend
|
|
* @param output Output to create internal plane for
|
|
*/
|
|
static struct drm_plane *
|
|
drm_virtual_plane_create(struct drm_backend *b, struct drm_output *output)
|
|
{
|
|
struct drm_plane *plane;
|
|
|
|
/* num of formats is one */
|
|
plane = zalloc(sizeof(*plane) + sizeof(plane->formats[0]));
|
|
if (!plane) {
|
|
weston_log("%s: out of memory\n", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
plane->type = WDRM_PLANE_TYPE_PRIMARY;
|
|
plane->backend = b;
|
|
plane->state_cur = drm_plane_state_alloc(NULL, plane);
|
|
plane->state_cur->complete = true;
|
|
plane->formats[0].format = output->gbm_format;
|
|
plane->count_formats = 1;
|
|
if ((output->gbm_bo_flags & GBM_BO_USE_LINEAR) && b->fb_modifiers) {
|
|
uint64_t *modifiers = zalloc(sizeof *modifiers);
|
|
if (modifiers) {
|
|
*modifiers = DRM_FORMAT_MOD_LINEAR;
|
|
plane->formats[0].modifiers = modifiers;
|
|
plane->formats[0].count_modifiers = 1;
|
|
}
|
|
}
|
|
|
|
weston_plane_init(&plane->base, b->compositor, 0, 0);
|
|
wl_list_insert(&b->plane_list, &plane->link);
|
|
|
|
return plane;
|
|
}
|
|
|
|
/**
|
|
* Destroy one DRM plane
|
|
*
|
|
* @param plane Plane to deallocate (will be freed)
|
|
*/
|
|
static void
|
|
drm_virtual_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
drm_plane_state_free(plane->state_cur, true);
|
|
weston_plane_release(&plane->base);
|
|
wl_list_remove(&plane->link);
|
|
if (plane->formats[0].modifiers)
|
|
free(plane->formats[0].modifiers);
|
|
free(plane);
|
|
}
|
|
|
|
/**
|
|
* Initialise sprites (overlay planes)
|
|
*
|
|
* Walk the list of provided DRM planes, and add overlay planes.
|
|
*
|
|
* Call destroy_sprites to free these planes.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
create_sprites(struct drm_backend *b)
|
|
{
|
|
drmModePlaneRes *kplane_res;
|
|
drmModePlane *kplane;
|
|
struct drm_plane *drm_plane;
|
|
uint32_t i;
|
|
kplane_res = drmModeGetPlaneResources(b->drm.fd);
|
|
if (!kplane_res) {
|
|
weston_log("failed to get plane resources: %s\n",
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < kplane_res->count_planes; i++) {
|
|
kplane = drmModeGetPlane(b->drm.fd, kplane_res->planes[i]);
|
|
if (!kplane)
|
|
continue;
|
|
|
|
drm_plane = drm_plane_create(b, kplane, NULL,
|
|
WDRM_PLANE_TYPE__COUNT, 0);
|
|
drmModeFreePlane(kplane);
|
|
if (!drm_plane)
|
|
continue;
|
|
|
|
if (drm_plane->type == WDRM_PLANE_TYPE_OVERLAY)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&drm_plane->base,
|
|
&b->compositor->primary_plane);
|
|
}
|
|
|
|
drmModeFreePlaneResources(kplane_res);
|
|
}
|
|
|
|
/**
|
|
* Clean up sprites (overlay planes)
|
|
*
|
|
* The counterpart to create_sprites.
|
|
*
|
|
* @param b DRM compositor backend
|
|
*/
|
|
static void
|
|
destroy_sprites(struct drm_backend *b)
|
|
{
|
|
struct drm_plane *plane, *next;
|
|
|
|
wl_list_for_each_safe(plane, next, &b->plane_list, link)
|
|
drm_plane_destroy(plane);
|
|
}
|
|
|
|
/* returns a value between 0-255 range, where higher is brighter */
|
|
static uint32_t
|
|
drm_get_backlight(struct drm_head *head)
|
|
{
|
|
long brightness, max_brightness, norm;
|
|
|
|
brightness = backlight_get_brightness(head->backlight);
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* convert it on a scale of 0 to 255 */
|
|
norm = (brightness * 255)/(max_brightness);
|
|
|
|
return (uint32_t) norm;
|
|
}
|
|
|
|
/* values accepted are between 0-255 range */
|
|
static void
|
|
drm_set_backlight(struct weston_output *output_base, uint32_t value)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_head *head;
|
|
long max_brightness, new_brightness;
|
|
|
|
if (value > 255)
|
|
return;
|
|
|
|
wl_list_for_each(head, &output->base.head_list, base.output_link) {
|
|
if (!head->backlight)
|
|
return;
|
|
|
|
max_brightness = backlight_get_max_brightness(head->backlight);
|
|
|
|
/* get denormalized value */
|
|
new_brightness = (value * max_brightness) / 255;
|
|
|
|
backlight_set_brightness(head->backlight, new_brightness);
|
|
}
|
|
}
|
|
|
|
static void
|
|
drm_output_init_backlight(struct drm_output *output)
|
|
{
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
|
|
output->base.set_backlight = NULL;
|
|
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->backlight) {
|
|
weston_log("Initialized backlight for head '%s', device %s\n",
|
|
head->base.name, head->backlight->path);
|
|
|
|
if (!output->base.set_backlight) {
|
|
output->base.set_backlight = drm_set_backlight;
|
|
output->base.backlight_current =
|
|
drm_get_backlight(head);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Power output on or off
|
|
*
|
|
* The DPMS/power level of an output is used to switch it on or off. This
|
|
* is DRM's hook for doing so, which can called either as part of repaint,
|
|
* or independently of the repaint loop.
|
|
*
|
|
* If we are called as part of repaint, we simply set the relevant bit in
|
|
* state and return.
|
|
*
|
|
* This function is never called on a virtual output.
|
|
*/
|
|
static void
|
|
drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
struct drm_pending_state *pending_state = b->repaint_data;
|
|
struct drm_output_state *state;
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->state_cur->dpms == level)
|
|
return;
|
|
|
|
/* If we're being called during the repaint loop, then this is
|
|
* simple: discard any previously-generated state, and create a new
|
|
* state where we disable everything. When we come to flush, this
|
|
* will be applied.
|
|
*
|
|
* However, we need to be careful: we can be called whilst another
|
|
* output is in its repaint cycle (pending_state exists), but our
|
|
* output still has an incomplete state application outstanding.
|
|
* In that case, we need to wait until that completes. */
|
|
if (pending_state && !output->state_last) {
|
|
/* The repaint loop already sets DPMS on; we don't need to
|
|
* explicitly set it on here, as it will already happen
|
|
* whilst applying the repaint state. */
|
|
if (level == WESTON_DPMS_ON)
|
|
return;
|
|
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (state)
|
|
drm_output_state_free(state);
|
|
state = drm_output_get_disable_state(pending_state, output);
|
|
return;
|
|
}
|
|
|
|
/* As we throw everything away when disabling, just send us back through
|
|
* a repaint cycle. */
|
|
if (level == WESTON_DPMS_ON) {
|
|
if (output->dpms_off_pending)
|
|
output->dpms_off_pending = 0;
|
|
weston_output_schedule_repaint(output_base);
|
|
return;
|
|
}
|
|
|
|
/* If we've already got a request in the pipeline, then we need to
|
|
* park our DPMS request until that request has quiesced. */
|
|
if (output->state_last) {
|
|
output->dpms_off_pending = 1;
|
|
return;
|
|
}
|
|
|
|
pending_state = drm_pending_state_alloc(b);
|
|
drm_output_get_disable_state(pending_state, output);
|
|
ret = drm_pending_state_apply_sync(pending_state);
|
|
if (ret != 0)
|
|
weston_log("drm_set_dpms: couldn't disable output?\n");
|
|
}
|
|
|
|
static const char * const connector_type_names[] = {
|
|
[DRM_MODE_CONNECTOR_Unknown] = "Unknown",
|
|
[DRM_MODE_CONNECTOR_VGA] = "VGA",
|
|
[DRM_MODE_CONNECTOR_DVII] = "DVI-I",
|
|
[DRM_MODE_CONNECTOR_DVID] = "DVI-D",
|
|
[DRM_MODE_CONNECTOR_DVIA] = "DVI-A",
|
|
[DRM_MODE_CONNECTOR_Composite] = "Composite",
|
|
[DRM_MODE_CONNECTOR_SVIDEO] = "SVIDEO",
|
|
[DRM_MODE_CONNECTOR_LVDS] = "LVDS",
|
|
[DRM_MODE_CONNECTOR_Component] = "Component",
|
|
[DRM_MODE_CONNECTOR_9PinDIN] = "DIN",
|
|
[DRM_MODE_CONNECTOR_DisplayPort] = "DP",
|
|
[DRM_MODE_CONNECTOR_HDMIA] = "HDMI-A",
|
|
[DRM_MODE_CONNECTOR_HDMIB] = "HDMI-B",
|
|
[DRM_MODE_CONNECTOR_TV] = "TV",
|
|
[DRM_MODE_CONNECTOR_eDP] = "eDP",
|
|
#ifdef DRM_MODE_CONNECTOR_DSI
|
|
[DRM_MODE_CONNECTOR_VIRTUAL] = "Virtual",
|
|
[DRM_MODE_CONNECTOR_DSI] = "DSI",
|
|
#endif
|
|
#ifdef DRM_MODE_CONNECTOR_DPI
|
|
[DRM_MODE_CONNECTOR_DPI] = "DPI",
|
|
#endif
|
|
};
|
|
|
|
/** Create a name given a DRM connector
|
|
*
|
|
* \param con The DRM connector whose type and id form the name.
|
|
* \return A newly allocate string, or NULL on error. Must be free()'d
|
|
* after use.
|
|
*
|
|
* The name does not identify the DRM display device.
|
|
*/
|
|
static char *
|
|
make_connector_name(const drmModeConnector *con)
|
|
{
|
|
char *name;
|
|
const char *type_name = NULL;
|
|
int ret;
|
|
|
|
if (con->connector_type < ARRAY_LENGTH(connector_type_names))
|
|
type_name = connector_type_names[con->connector_type];
|
|
|
|
if (!type_name)
|
|
type_name = "UNNAMED";
|
|
|
|
ret = asprintf(&name, "%s-%d", type_name, con->connector_type_id);
|
|
if (ret < 0)
|
|
return NULL;
|
|
|
|
return name;
|
|
}
|
|
|
|
static void drm_output_fini_cursor_egl(struct drm_output *output)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->gbm_cursor_fb); i++) {
|
|
drm_fb_unref(output->gbm_cursor_fb[i]);
|
|
output->gbm_cursor_fb[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_init_cursor_egl(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* No point creating cursors if we don't have a plane for them. */
|
|
if (!output->cursor_plane)
|
|
return 0;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->gbm_cursor_fb); i++) {
|
|
struct gbm_bo *bo;
|
|
|
|
bo = gbm_bo_create(b->gbm, b->cursor_width, b->cursor_height,
|
|
GBM_FORMAT_ARGB8888,
|
|
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
|
|
if (!bo)
|
|
goto err;
|
|
|
|
output->gbm_cursor_fb[i] =
|
|
drm_fb_get_from_bo(bo, b, false, BUFFER_CURSOR);
|
|
if (!output->gbm_cursor_fb[i]) {
|
|
gbm_bo_destroy(bo);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
weston_log("cursor buffers unavailable, using gl cursors\n");
|
|
b->cursors_are_broken = 1;
|
|
drm_output_fini_cursor_egl(output);
|
|
return -1;
|
|
}
|
|
|
|
/* Init output state that depends on gl or gbm */
|
|
static int
|
|
drm_output_init_egl(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
EGLint format[2] = {
|
|
output->gbm_format,
|
|
fallback_format_for(output->gbm_format),
|
|
};
|
|
int n_formats = 1;
|
|
struct weston_mode *mode = output->base.current_mode;
|
|
struct drm_plane *plane = output->scanout_plane;
|
|
unsigned int i;
|
|
|
|
assert(output->gbm_surface == NULL);
|
|
|
|
for (i = 0; i < plane->count_formats; i++) {
|
|
if (plane->formats[i].format == output->gbm_format)
|
|
break;
|
|
}
|
|
|
|
if (i == plane->count_formats) {
|
|
weston_log("format 0x%x not supported by output %s\n",
|
|
output->gbm_format, output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef HAVE_GBM_MODIFIERS
|
|
if (plane->formats[i].count_modifiers > 0) {
|
|
output->gbm_surface =
|
|
gbm_surface_create_with_modifiers(b->gbm,
|
|
mode->width,
|
|
mode->height,
|
|
output->gbm_format,
|
|
plane->formats[i].modifiers,
|
|
plane->formats[i].count_modifiers);
|
|
}
|
|
|
|
/* If allocating with modifiers fails, try again without. This can
|
|
* happen when the KMS display device supports modifiers but the
|
|
* GBM driver does not, e.g. the old i915 Mesa driver. */
|
|
if (!output->gbm_surface)
|
|
#endif
|
|
{
|
|
output->gbm_surface =
|
|
gbm_surface_create(b->gbm, mode->width, mode->height,
|
|
output->gbm_format,
|
|
output->gbm_bo_flags);
|
|
}
|
|
|
|
if (!output->gbm_surface) {
|
|
weston_log("failed to create gbm surface\n");
|
|
return -1;
|
|
}
|
|
|
|
if (format[1])
|
|
n_formats = 2;
|
|
if (gl_renderer->output_window_create(&output->base,
|
|
(EGLNativeWindowType)output->gbm_surface,
|
|
output->gbm_surface,
|
|
gl_renderer->opaque_attribs,
|
|
format,
|
|
n_formats) < 0) {
|
|
weston_log("failed to create gl renderer output state\n");
|
|
gbm_surface_destroy(output->gbm_surface);
|
|
output->gbm_surface = NULL;
|
|
return -1;
|
|
}
|
|
|
|
drm_output_init_cursor_egl(output, b);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_fini_egl(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
|
|
/* Destroying the GBM surface will destroy all our GBM buffers,
|
|
* regardless of refcount. Ensure we destroy them here. */
|
|
if (!b->shutting_down &&
|
|
output->scanout_plane->state_cur->fb &&
|
|
output->scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE) {
|
|
drm_plane_state_free(output->scanout_plane->state_cur, true);
|
|
output->scanout_plane->state_cur =
|
|
drm_plane_state_alloc(NULL, output->scanout_plane);
|
|
output->scanout_plane->state_cur->complete = true;
|
|
}
|
|
|
|
gl_renderer->output_destroy(&output->base);
|
|
gbm_surface_destroy(output->gbm_surface);
|
|
output->gbm_surface = NULL;
|
|
drm_output_fini_cursor_egl(output);
|
|
}
|
|
|
|
static int
|
|
drm_output_init_pixman(struct drm_output *output, struct drm_backend *b)
|
|
{
|
|
int w = output->base.current_mode->width;
|
|
int h = output->base.current_mode->height;
|
|
uint32_t format = output->gbm_format;
|
|
uint32_t pixman_format;
|
|
unsigned int i;
|
|
uint32_t flags = 0;
|
|
|
|
switch (format) {
|
|
case GBM_FORMAT_XRGB8888:
|
|
pixman_format = PIXMAN_x8r8g8b8;
|
|
break;
|
|
case GBM_FORMAT_RGB565:
|
|
pixman_format = PIXMAN_r5g6b5;
|
|
break;
|
|
default:
|
|
weston_log("Unsupported pixman format 0x%x\n", format);
|
|
return -1;
|
|
}
|
|
|
|
/* FIXME error checking */
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
output->dumb[i] = drm_fb_create_dumb(b, w, h, format);
|
|
if (!output->dumb[i])
|
|
goto err;
|
|
|
|
output->image[i] =
|
|
pixman_image_create_bits(pixman_format, w, h,
|
|
output->dumb[i]->map,
|
|
output->dumb[i]->strides[0]);
|
|
if (!output->image[i])
|
|
goto err;
|
|
}
|
|
|
|
if (b->use_pixman_shadow)
|
|
flags |= PIXMAN_RENDERER_OUTPUT_USE_SHADOW;
|
|
|
|
if (pixman_renderer_output_create(&output->base, flags) < 0)
|
|
goto err;
|
|
|
|
weston_log("DRM: output %s %s shadow framebuffer.\n", output->base.name,
|
|
b->use_pixman_shadow ? "uses" : "does not use");
|
|
|
|
pixman_region32_init_rect(&output->previous_damage,
|
|
output->base.x, output->base.y, output->base.width, output->base.height);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
if (output->dumb[i])
|
|
drm_fb_unref(output->dumb[i]);
|
|
if (output->image[i])
|
|
pixman_image_unref(output->image[i]);
|
|
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_fini_pixman(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
unsigned int i;
|
|
|
|
/* Destroying the Pixman surface will destroy all our buffers,
|
|
* regardless of refcount. Ensure we destroy them here. */
|
|
if (!b->shutting_down &&
|
|
output->scanout_plane->state_cur->fb &&
|
|
output->scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) {
|
|
drm_plane_state_free(output->scanout_plane->state_cur, true);
|
|
output->scanout_plane->state_cur =
|
|
drm_plane_state_alloc(NULL, output->scanout_plane);
|
|
output->scanout_plane->state_cur->complete = true;
|
|
}
|
|
|
|
pixman_renderer_output_destroy(&output->base);
|
|
pixman_region32_fini(&output->previous_damage);
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
|
|
pixman_image_unref(output->image[i]);
|
|
drm_fb_unref(output->dumb[i]);
|
|
output->dumb[i] = NULL;
|
|
output->image[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
setup_output_seat_constraint(struct drm_backend *b,
|
|
struct weston_output *output,
|
|
const char *s)
|
|
{
|
|
if (strcmp(s, "") != 0) {
|
|
struct weston_pointer *pointer;
|
|
struct udev_seat *seat;
|
|
|
|
seat = udev_seat_get_named(&b->input, s);
|
|
if (!seat)
|
|
return;
|
|
|
|
seat->base.output = output;
|
|
|
|
pointer = weston_seat_get_pointer(&seat->base);
|
|
if (pointer)
|
|
weston_pointer_clamp(pointer,
|
|
&pointer->x,
|
|
&pointer->y);
|
|
}
|
|
}
|
|
|
|
static int
|
|
drm_output_attach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (wl_list_length(&output_base->head_list) >= MAX_CLONED_CONNECTORS)
|
|
return -1;
|
|
|
|
if (!output_base->enabled)
|
|
return 0;
|
|
|
|
/* XXX: ensure the configuration will work.
|
|
* This is actually impossible without major infrastructure
|
|
* work. */
|
|
|
|
/* Need to go through modeset to add connectors. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
/* XXX: Doing it globally, what guarantees another output's update
|
|
* will not clear the flag before this output is updated?
|
|
*/
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_detach_head(struct weston_output *output_base,
|
|
struct weston_head *head_base)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
if (!output_base->enabled)
|
|
return;
|
|
|
|
/* Need to go through modeset to drop connectors that should no longer
|
|
* be driven. */
|
|
/* XXX: Ideally we'd do this per-output, not globally. */
|
|
b->state_invalid = true;
|
|
|
|
weston_output_schedule_repaint(output_base);
|
|
}
|
|
|
|
static int
|
|
parse_gbm_format(const char *s, uint32_t default_value, uint32_t *gbm_format)
|
|
{
|
|
const struct pixel_format_info *pinfo;
|
|
|
|
if (s == NULL) {
|
|
*gbm_format = default_value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
pinfo = pixel_format_get_info_by_drm_name(s);
|
|
if (!pinfo) {
|
|
weston_log("fatal: unrecognized pixel format: %s\n", s);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* GBM formats and DRM formats are identical. */
|
|
*gbm_format = pinfo->format;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
drm_head_read_current_setup(struct drm_head *head, struct drm_backend *backend)
|
|
{
|
|
int drm_fd = backend->drm.fd;
|
|
drmModeEncoder *encoder;
|
|
drmModeCrtc *crtc;
|
|
|
|
/* Get the current mode on the crtc that's currently driving
|
|
* this connector. */
|
|
encoder = drmModeGetEncoder(drm_fd, head->connector->encoder_id);
|
|
if (encoder != NULL) {
|
|
head->inherited_crtc_id = encoder->crtc_id;
|
|
|
|
crtc = drmModeGetCrtc(drm_fd, encoder->crtc_id);
|
|
drmModeFreeEncoder(encoder);
|
|
|
|
if (crtc == NULL)
|
|
return -1;
|
|
if (crtc->mode_valid)
|
|
head->inherited_mode = crtc->mode;
|
|
drmModeFreeCrtc(crtc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_gbm_format(struct weston_output *base,
|
|
const char *gbm_format)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (parse_gbm_format(gbm_format, b->gbm_format, &output->gbm_format) == -1)
|
|
output->gbm_format = b->gbm_format;
|
|
|
|
/* Without universal planes, we can't discover which formats are
|
|
* supported by the primary plane; we just hope that the GBM format
|
|
* works. */
|
|
if (!b->universal_planes)
|
|
output->scanout_plane->formats[0].format = output->gbm_format;
|
|
}
|
|
|
|
static void
|
|
drm_output_set_seat(struct weston_output *base,
|
|
const char *seat)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
setup_output_seat_constraint(b, &output->base,
|
|
seat ? seat : "");
|
|
}
|
|
|
|
static int
|
|
drm_output_init_gamma_size(struct drm_output *output)
|
|
{
|
|
struct drm_backend *backend = to_drm_backend(output->base.compositor);
|
|
drmModeCrtc *crtc;
|
|
|
|
assert(output->base.compositor);
|
|
assert(output->crtc_id != 0);
|
|
crtc = drmModeGetCrtc(backend->drm.fd, output->crtc_id);
|
|
if (!crtc)
|
|
return -1;
|
|
|
|
output->base.gamma_size = crtc->gamma_size;
|
|
|
|
drmModeFreeCrtc(crtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t
|
|
drm_head_get_possible_crtcs_mask(struct drm_head *head)
|
|
{
|
|
uint32_t possible_crtcs = 0;
|
|
drmModeEncoder *encoder;
|
|
int i;
|
|
|
|
for (i = 0; i < head->connector->count_encoders; i++) {
|
|
encoder = drmModeGetEncoder(head->backend->drm.fd,
|
|
head->connector->encoders[i]);
|
|
if (!encoder)
|
|
continue;
|
|
|
|
possible_crtcs |= encoder->possible_crtcs;
|
|
drmModeFreeEncoder(encoder);
|
|
}
|
|
|
|
return possible_crtcs;
|
|
}
|
|
|
|
static int
|
|
drm_crtc_get_index(drmModeRes *resources, uint32_t crtc_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
if (resources->crtcs[i] == crtc_id)
|
|
return i;
|
|
}
|
|
|
|
assert(0 && "unknown crtc id");
|
|
return -1;
|
|
}
|
|
|
|
/** Pick a CRTC that might be able to drive all attached connectors
|
|
*
|
|
* @param output The output whose attached heads to include.
|
|
* @param resources The DRM KMS resources.
|
|
* @return CRTC index, or -1 on failure or not found.
|
|
*/
|
|
static int
|
|
drm_output_pick_crtc(struct drm_output *output, drmModeRes *resources)
|
|
{
|
|
struct drm_backend *backend;
|
|
struct weston_head *base;
|
|
struct drm_head *head;
|
|
uint32_t possible_crtcs = 0xffffffff;
|
|
int existing_crtc[32];
|
|
unsigned j, n = 0;
|
|
uint32_t crtc_id;
|
|
int best_crtc_index = -1;
|
|
int fallback_crtc_index = -1;
|
|
int i;
|
|
bool match;
|
|
|
|
backend = to_drm_backend(output->base.compositor);
|
|
|
|
/* This algorithm ignores drmModeEncoder::possible_clones restriction,
|
|
* because it is more often set wrong than not in the kernel. */
|
|
|
|
/* Accumulate a mask of possible crtcs and find existing routings. */
|
|
wl_list_for_each(base, &output->base.head_list, output_link) {
|
|
head = to_drm_head(base);
|
|
|
|
possible_crtcs &= drm_head_get_possible_crtcs_mask(head);
|
|
|
|
crtc_id = head->inherited_crtc_id;
|
|
if (crtc_id > 0 && n < ARRAY_LENGTH(existing_crtc))
|
|
existing_crtc[n++] = drm_crtc_get_index(resources,
|
|
crtc_id);
|
|
}
|
|
|
|
/* Find a crtc that could drive each connector individually at least,
|
|
* and prefer existing routings. */
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
crtc_id = resources->crtcs[i];
|
|
|
|
/* Could the crtc not drive each connector? */
|
|
if (!(possible_crtcs & (1 << i)))
|
|
continue;
|
|
|
|
/* Is the crtc already in use? */
|
|
if (drm_output_find_by_crtc(backend, crtc_id))
|
|
continue;
|
|
|
|
/* Try to preserve the existing CRTC -> connector routing;
|
|
* it makes initialisation faster, and also since we have a
|
|
* very dumb picking algorithm, may preserve a better
|
|
* choice. */
|
|
for (j = 0; j < n; j++) {
|
|
if (existing_crtc[j] == i)
|
|
return i;
|
|
}
|
|
|
|
/* Check if any other head had existing routing to this CRTC.
|
|
* If they did, this is not the best CRTC as it might be needed
|
|
* for another output we haven't enabled yet. */
|
|
match = false;
|
|
wl_list_for_each(base, &backend->compositor->head_list,
|
|
compositor_link) {
|
|
head = to_drm_head(base);
|
|
|
|
if (head->base.output == &output->base)
|
|
continue;
|
|
|
|
if (weston_head_is_enabled(&head->base))
|
|
continue;
|
|
|
|
if (head->inherited_crtc_id == crtc_id) {
|
|
match = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!match)
|
|
best_crtc_index = i;
|
|
|
|
fallback_crtc_index = i;
|
|
}
|
|
|
|
if (best_crtc_index != -1)
|
|
return best_crtc_index;
|
|
|
|
if (fallback_crtc_index != -1)
|
|
return fallback_crtc_index;
|
|
|
|
/* Likely possible_crtcs was empty due to asking for clones,
|
|
* but since the DRM documentation says the kernel lies, let's
|
|
* pick one crtc anyway. Trial and error is the only way to
|
|
* be sure if something doesn't work. */
|
|
|
|
/* First pick any existing assignment. */
|
|
for (j = 0; j < n; j++) {
|
|
crtc_id = resources->crtcs[existing_crtc[j]];
|
|
if (!drm_output_find_by_crtc(backend, crtc_id))
|
|
return existing_crtc[j];
|
|
}
|
|
|
|
/* Otherwise pick any available crtc. */
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
crtc_id = resources->crtcs[i];
|
|
|
|
if (!drm_output_find_by_crtc(backend, crtc_id))
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/** Allocate a CRTC for the output
|
|
*
|
|
* @param output The output with no allocated CRTC.
|
|
* @param resources DRM KMS resources.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Finds a free CRTC that might drive the attached connectors, reserves the CRTC
|
|
* for the output, and loads the CRTC properties.
|
|
*
|
|
* Populates the cursor and scanout planes.
|
|
*
|
|
* On failure, the output remains without a CRTC.
|
|
*/
|
|
static int
|
|
drm_output_init_crtc(struct drm_output *output, drmModeRes *resources)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
drmModeObjectPropertiesPtr props;
|
|
int i;
|
|
|
|
assert(output->crtc_id == 0);
|
|
|
|
i = drm_output_pick_crtc(output, resources);
|
|
if (i < 0) {
|
|
weston_log("Output '%s': No available CRTCs.\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
output->crtc_id = resources->crtcs[i];
|
|
output->pipe = i;
|
|
|
|
props = drmModeObjectGetProperties(b->drm.fd, output->crtc_id,
|
|
DRM_MODE_OBJECT_CRTC);
|
|
if (!props) {
|
|
weston_log("failed to get CRTC properties\n");
|
|
goto err_crtc;
|
|
}
|
|
drm_property_info_populate(b, crtc_props, output->props_crtc,
|
|
WDRM_CRTC__COUNT, props);
|
|
drmModeFreeObjectProperties(props);
|
|
|
|
output->scanout_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_PRIMARY);
|
|
if (!output->scanout_plane) {
|
|
weston_log("Failed to find primary plane for output %s\n",
|
|
output->base.name);
|
|
goto err_crtc;
|
|
}
|
|
|
|
/* Failing to find a cursor plane is not fatal, as we'll fall back
|
|
* to software cursor. */
|
|
output->cursor_plane =
|
|
drm_output_find_special_plane(b, output,
|
|
WDRM_PLANE_TYPE_CURSOR);
|
|
|
|
wl_array_remove_uint32(&b->unused_crtcs, output->crtc_id);
|
|
|
|
return 0;
|
|
|
|
err_crtc:
|
|
output->crtc_id = 0;
|
|
output->pipe = 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/** Free the CRTC from the output
|
|
*
|
|
* @param output The output whose CRTC to deallocate.
|
|
*
|
|
* The CRTC reserved for the given output becomes free to use again.
|
|
*/
|
|
static void
|
|
drm_output_fini_crtc(struct drm_output *output)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
uint32_t *unused;
|
|
|
|
if (!b->universal_planes && !b->shutting_down) {
|
|
/* With universal planes, the 'special' planes are allocated at
|
|
* startup, freed at shutdown, and live on the plane list in
|
|
* between. We want the planes to continue to exist and be freed
|
|
* up for other outputs.
|
|
*
|
|
* Without universal planes, our special planes are
|
|
* pseudo-planes allocated at output creation, freed at output
|
|
* destruction, and not usable by other outputs.
|
|
*
|
|
* On the other hand, if the compositor is already shutting down,
|
|
* the plane has already been destroyed.
|
|
*/
|
|
if (output->cursor_plane)
|
|
drm_plane_destroy(output->cursor_plane);
|
|
if (output->scanout_plane)
|
|
drm_plane_destroy(output->scanout_plane);
|
|
}
|
|
|
|
drm_property_info_free(output->props_crtc, WDRM_CRTC__COUNT);
|
|
|
|
assert(output->crtc_id != 0);
|
|
|
|
unused = wl_array_add(&b->unused_crtcs, sizeof(*unused));
|
|
*unused = output->crtc_id;
|
|
|
|
/* Force resetting unused CRTCs */
|
|
b->state_invalid = true;
|
|
|
|
output->crtc_id = 0;
|
|
output->cursor_plane = NULL;
|
|
output->scanout_plane = NULL;
|
|
}
|
|
|
|
static int
|
|
drm_output_enable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
drmModeRes *resources;
|
|
int ret;
|
|
|
|
assert(!output->virtual);
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return -1;
|
|
}
|
|
ret = drm_output_init_crtc(output, resources);
|
|
drmModeFreeResources(resources);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if (drm_output_init_gamma_size(output) < 0)
|
|
goto err;
|
|
|
|
if (b->pageflip_timeout)
|
|
drm_output_pageflip_timer_create(output);
|
|
|
|
if (b->use_pixman) {
|
|
if (drm_output_init_pixman(output, b) < 0) {
|
|
weston_log("Failed to init output pixman state\n");
|
|
goto err;
|
|
}
|
|
} else if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("Failed to init output gl state\n");
|
|
goto err;
|
|
}
|
|
|
|
drm_output_init_backlight(output);
|
|
|
|
output->base.start_repaint_loop = drm_output_start_repaint_loop;
|
|
output->base.repaint = drm_output_repaint;
|
|
output->base.assign_planes = drm_assign_planes;
|
|
output->base.set_dpms = drm_set_dpms;
|
|
output->base.switch_mode = drm_output_switch_mode;
|
|
output->base.set_gamma = drm_output_set_gamma;
|
|
|
|
if (output->cursor_plane)
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->cursor_plane->base,
|
|
NULL);
|
|
else
|
|
b->cursors_are_broken = 1;
|
|
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->scanout_plane->base,
|
|
&b->compositor->primary_plane);
|
|
|
|
weston_log("Output %s (crtc %d) video modes:\n",
|
|
output->base.name, output->crtc_id);
|
|
drm_output_print_modes(output);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_fini_crtc(output);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_output_deinit(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (b->use_pixman)
|
|
drm_output_fini_pixman(output);
|
|
else
|
|
drm_output_fini_egl(output);
|
|
|
|
/* Since our planes are no longer in use anywhere, remove their base
|
|
* weston_plane's link from the plane stacking list, unless we're
|
|
* shutting down, in which case the plane has already been
|
|
* destroyed. */
|
|
if (!b->shutting_down) {
|
|
wl_list_remove(&output->scanout_plane->base.link);
|
|
wl_list_init(&output->scanout_plane->base.link);
|
|
|
|
if (output->cursor_plane) {
|
|
wl_list_remove(&output->cursor_plane->base.link);
|
|
wl_list_init(&output->cursor_plane->base.link);
|
|
/* Turn off hardware cursor */
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
drm_output_fini_crtc(output);
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head);
|
|
|
|
static void
|
|
drm_output_destroy(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->atomic_complete_pending) {
|
|
output->destroy_pending = 1;
|
|
weston_log("destroy output while page flip pending\n");
|
|
return;
|
|
}
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
drm_mode_list_destroy(b, &output->base.mode_list);
|
|
|
|
if (output->pageflip_timer)
|
|
wl_event_source_remove(output->pageflip_timer);
|
|
|
|
weston_output_release(&output->base);
|
|
|
|
assert(!output->state_last);
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
free(output);
|
|
}
|
|
|
|
static int
|
|
drm_output_disable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(!output->virtual);
|
|
|
|
if (output->page_flip_pending || output->atomic_complete_pending) {
|
|
output->disable_pending = 1;
|
|
return -1;
|
|
}
|
|
|
|
weston_log("Disabling output %s\n", output->base.name);
|
|
|
|
if (output->base.enabled)
|
|
drm_output_deinit(&output->base);
|
|
|
|
output->disable_pending = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Update the list of unused connectors and CRTCs
|
|
*
|
|
* This keeps the unused_crtc arrays up to date.
|
|
*
|
|
* @param b Weston backend structure
|
|
* @param resources DRM resources for this device
|
|
*/
|
|
static void
|
|
drm_backend_update_unused_outputs(struct drm_backend *b, drmModeRes *resources)
|
|
{
|
|
int i;
|
|
|
|
wl_array_release(&b->unused_crtcs);
|
|
wl_array_init(&b->unused_crtcs);
|
|
|
|
for (i = 0; i < resources->count_crtcs; i++) {
|
|
struct drm_output *output;
|
|
uint32_t *crtc_id;
|
|
|
|
output = drm_output_find_by_crtc(b, resources->crtcs[i]);
|
|
if (output && output->base.enabled)
|
|
continue;
|
|
|
|
crtc_id = wl_array_add(&b->unused_crtcs, sizeof(*crtc_id));
|
|
*crtc_id = resources->crtcs[i];
|
|
}
|
|
}
|
|
|
|
/** Replace connector data and monitor information
|
|
*
|
|
* @param head The head to update.
|
|
* @param connector The connector data to be owned by the head, must match
|
|
* the head's connector ID.
|
|
* @return 0 on success, -1 on failure.
|
|
*
|
|
* Takes ownership of @c connector on success, not on failure.
|
|
*
|
|
* May schedule a heads changed call.
|
|
*/
|
|
static int
|
|
drm_head_assign_connector_info(struct drm_head *head,
|
|
drmModeConnector *connector)
|
|
{
|
|
drmModeObjectProperties *props;
|
|
|
|
assert(connector);
|
|
assert(head->connector_id == connector->connector_id);
|
|
|
|
props = drmModeObjectGetProperties(head->backend->drm.fd,
|
|
head->connector_id,
|
|
DRM_MODE_OBJECT_CONNECTOR);
|
|
if (!props) {
|
|
weston_log("Error: failed to get connector '%s' properties\n",
|
|
head->base.name);
|
|
return -1;
|
|
}
|
|
|
|
if (head->connector)
|
|
drmModeFreeConnector(head->connector);
|
|
head->connector = connector;
|
|
|
|
drm_property_info_populate(head->backend, connector_props,
|
|
head->props_conn,
|
|
WDRM_CONNECTOR__COUNT, props);
|
|
update_head_from_connector(head, props);
|
|
drmModeFreeObjectProperties(props);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_head_log_info(struct drm_head *head, const char *msg)
|
|
{
|
|
if (head->base.connected) {
|
|
weston_log("DRM: head '%s' %s, connector %d is connected, "
|
|
"EDID make '%s', model '%s', serial '%s'\n",
|
|
head->base.name, msg, head->connector_id,
|
|
head->base.make, head->base.model,
|
|
head->base.serial_number ?: "");
|
|
} else {
|
|
weston_log("DRM: head '%s' %s, connector %d is disconnected.\n",
|
|
head->base.name, msg, head->connector_id);
|
|
}
|
|
}
|
|
|
|
/** Update connector and monitor information
|
|
*
|
|
* @param head The head to update.
|
|
*
|
|
* Re-reads the DRM property lists for the connector and updates monitor
|
|
* information and connection status. This may schedule a heads changed call
|
|
* to the user.
|
|
*/
|
|
static void
|
|
drm_head_update_info(struct drm_head *head)
|
|
{
|
|
drmModeConnector *connector;
|
|
|
|
connector = drmModeGetConnector(head->backend->drm.fd,
|
|
head->connector_id);
|
|
if (!connector) {
|
|
weston_log("DRM: getting connector info for '%s' failed.\n",
|
|
head->base.name);
|
|
return;
|
|
}
|
|
|
|
if (drm_head_assign_connector_info(head, connector) < 0)
|
|
drmModeFreeConnector(connector);
|
|
|
|
if (head->base.device_changed)
|
|
drm_head_log_info(head, "updated");
|
|
}
|
|
|
|
/**
|
|
* Create a Weston head for a connector
|
|
*
|
|
* Given a DRM connector, create a matching drm_head structure and add it
|
|
* to Weston's head list.
|
|
*
|
|
* @param backend Weston backend structure
|
|
* @param connector_id DRM connector ID for the head
|
|
* @param drm_device udev device pointer
|
|
* @returns The new head, or NULL on failure.
|
|
*/
|
|
static struct drm_head *
|
|
drm_head_create(struct drm_backend *backend, uint32_t connector_id,
|
|
struct udev_device *drm_device)
|
|
{
|
|
struct drm_head *head;
|
|
drmModeConnector *connector;
|
|
char *name;
|
|
|
|
head = zalloc(sizeof *head);
|
|
if (!head)
|
|
return NULL;
|
|
|
|
connector = drmModeGetConnector(backend->drm.fd, connector_id);
|
|
if (!connector)
|
|
goto err_alloc;
|
|
|
|
name = make_connector_name(connector);
|
|
if (!name)
|
|
goto err_alloc;
|
|
|
|
weston_head_init(&head->base, name);
|
|
free(name);
|
|
|
|
head->connector_id = connector_id;
|
|
head->backend = backend;
|
|
|
|
head->backlight = backlight_init(drm_device, connector->connector_type);
|
|
|
|
if (drm_head_assign_connector_info(head, connector) < 0)
|
|
goto err_init;
|
|
|
|
if (head->connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
|
|
head->connector->connector_type == DRM_MODE_CONNECTOR_eDP)
|
|
weston_head_set_internal(&head->base);
|
|
|
|
if (drm_head_read_current_setup(head, backend) < 0) {
|
|
weston_log("Failed to retrieve current mode from connector %d.\n",
|
|
head->connector_id);
|
|
/* Not fatal. */
|
|
}
|
|
|
|
weston_compositor_add_head(backend->compositor, &head->base);
|
|
drm_head_log_info(head, "found");
|
|
|
|
return head;
|
|
|
|
err_init:
|
|
weston_head_release(&head->base);
|
|
|
|
err_alloc:
|
|
if (connector)
|
|
drmModeFreeConnector(connector);
|
|
|
|
free(head);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
drm_head_destroy(struct drm_head *head)
|
|
{
|
|
weston_head_release(&head->base);
|
|
|
|
drm_property_info_free(head->props_conn, WDRM_CONNECTOR__COUNT);
|
|
drmModeFreeConnector(head->connector);
|
|
|
|
if (head->backlight)
|
|
backlight_destroy(head->backlight);
|
|
|
|
free(head);
|
|
}
|
|
|
|
/**
|
|
* Create a Weston output structure
|
|
*
|
|
* Create an "empty" drm_output. This is the implementation of
|
|
* weston_backend::create_output.
|
|
*
|
|
* Creating an output is usually followed by drm_output_attach_head()
|
|
* and drm_output_enable() to make use of it.
|
|
*
|
|
* @param compositor The compositor instance.
|
|
* @param name Name for the new output.
|
|
* @returns The output, or NULL on failure.
|
|
*/
|
|
static struct weston_output *
|
|
drm_output_create(struct weston_compositor *compositor, const char *name)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_output *output;
|
|
|
|
output = zalloc(sizeof *output);
|
|
if (output == NULL)
|
|
return NULL;
|
|
|
|
output->backend = b;
|
|
output->gbm_bo_flags = GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING;
|
|
|
|
weston_output_init(&output->base, compositor, name);
|
|
|
|
output->base.enable = drm_output_enable;
|
|
output->base.destroy = drm_output_destroy;
|
|
output->base.disable = drm_output_disable;
|
|
output->base.attach_head = drm_output_attach_head;
|
|
output->base.detach_head = drm_output_detach_head;
|
|
|
|
output->destroy_pending = 0;
|
|
output->disable_pending = 0;
|
|
|
|
output->state_cur = drm_output_state_alloc(output, NULL);
|
|
|
|
weston_compositor_add_pending_output(&output->base, b->compositor);
|
|
|
|
return &output->base;
|
|
}
|
|
|
|
static int
|
|
drm_backend_create_heads(struct drm_backend *b, struct udev_device *drm_device)
|
|
{
|
|
struct drm_head *head;
|
|
drmModeRes *resources;
|
|
int i;
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return -1;
|
|
}
|
|
|
|
b->min_width = resources->min_width;
|
|
b->max_width = resources->max_width;
|
|
b->min_height = resources->min_height;
|
|
b->max_height = resources->max_height;
|
|
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
uint32_t connector_id = resources->connectors[i];
|
|
|
|
head = drm_head_create(b, connector_id, drm_device);
|
|
if (!head) {
|
|
weston_log("DRM: failed to create head for connector %d.\n",
|
|
connector_id);
|
|
}
|
|
}
|
|
|
|
drm_backend_update_unused_outputs(b, resources);
|
|
|
|
drmModeFreeResources(resources);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
drm_backend_update_heads(struct drm_backend *b, struct udev_device *drm_device)
|
|
{
|
|
drmModeRes *resources;
|
|
struct weston_head *base, *next;
|
|
struct drm_head *head;
|
|
int i;
|
|
|
|
resources = drmModeGetResources(b->drm.fd);
|
|
if (!resources) {
|
|
weston_log("drmModeGetResources failed\n");
|
|
return;
|
|
}
|
|
|
|
/* collect new connectors that have appeared, e.g. MST */
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
uint32_t connector_id = resources->connectors[i];
|
|
|
|
head = drm_head_find_by_connector(b, connector_id);
|
|
if (head) {
|
|
drm_head_update_info(head);
|
|
} else {
|
|
head = drm_head_create(b, connector_id, drm_device);
|
|
if (!head)
|
|
weston_log("DRM: failed to create head for hot-added connector %d.\n",
|
|
connector_id);
|
|
}
|
|
}
|
|
|
|
/* Remove connectors that have disappeared. */
|
|
wl_list_for_each_safe(base, next,
|
|
&b->compositor->head_list, compositor_link) {
|
|
bool removed = true;
|
|
|
|
head = to_drm_head(base);
|
|
|
|
for (i = 0; i < resources->count_connectors; i++) {
|
|
if (resources->connectors[i] == head->connector_id) {
|
|
removed = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!removed)
|
|
continue;
|
|
|
|
weston_log("DRM: head '%s' (connector %d) disappeared.\n",
|
|
head->base.name, head->connector_id);
|
|
drm_head_destroy(head);
|
|
}
|
|
|
|
drm_backend_update_unused_outputs(b, resources);
|
|
|
|
drmModeFreeResources(resources);
|
|
}
|
|
|
|
static int
|
|
udev_event_is_hotplug(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *sysnum;
|
|
const char *val;
|
|
|
|
sysnum = udev_device_get_sysnum(device);
|
|
if (!sysnum || atoi(sysnum) != b->drm.id)
|
|
return 0;
|
|
|
|
val = udev_device_get_property_value(device, "HOTPLUG");
|
|
if (!val)
|
|
return 0;
|
|
|
|
return strcmp(val, "1") == 0;
|
|
}
|
|
|
|
static int
|
|
udev_drm_event(int fd, uint32_t mask, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct udev_device *event;
|
|
|
|
event = udev_monitor_receive_device(b->udev_monitor);
|
|
|
|
if (udev_event_is_hotplug(b, event))
|
|
drm_backend_update_heads(b, event);
|
|
|
|
udev_device_unref(event);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
drm_destroy(struct weston_compositor *ec)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(ec);
|
|
struct weston_head *base, *next;
|
|
|
|
udev_input_destroy(&b->input);
|
|
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
wl_event_source_remove(b->drm_source);
|
|
|
|
b->shutting_down = true;
|
|
|
|
destroy_sprites(b);
|
|
|
|
weston_compositor_log_scope_destroy(b->debug);
|
|
b->debug = NULL;
|
|
weston_compositor_shutdown(ec);
|
|
|
|
wl_list_for_each_safe(base, next, &ec->head_list, compositor_link)
|
|
drm_head_destroy(to_drm_head(base));
|
|
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
|
|
udev_monitor_unref(b->udev_monitor);
|
|
udev_unref(b->udev);
|
|
|
|
weston_launcher_destroy(ec->launcher);
|
|
|
|
wl_array_release(&b->unused_crtcs);
|
|
|
|
close(b->drm.fd);
|
|
free(b->drm.filename);
|
|
free(b);
|
|
}
|
|
|
|
static void
|
|
session_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct weston_compositor *compositor = data;
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
struct drm_plane *plane;
|
|
struct drm_output *output;
|
|
|
|
if (compositor->session_active) {
|
|
weston_log("activating session\n");
|
|
weston_compositor_wake(compositor);
|
|
weston_compositor_damage_all(compositor);
|
|
b->state_invalid = true;
|
|
udev_input_enable(&b->input);
|
|
} else {
|
|
weston_log("deactivating session\n");
|
|
udev_input_disable(&b->input);
|
|
|
|
weston_compositor_offscreen(compositor);
|
|
|
|
/* If we have a repaint scheduled (either from a
|
|
* pending pageflip or the idle handler), make sure we
|
|
* cancel that so we don't try to pageflip when we're
|
|
* vt switched away. The OFFSCREEN state will prevent
|
|
* further attempts at repainting. When we switch
|
|
* back, we schedule a repaint, which will process
|
|
* pending frame callbacks. */
|
|
|
|
wl_list_for_each(output, &compositor->output_list, base.link) {
|
|
output->base.repaint_needed = false;
|
|
if (output->cursor_plane)
|
|
drmModeSetCursor(b->drm.fd, output->crtc_id,
|
|
0, 0, 0);
|
|
}
|
|
|
|
output = container_of(compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
|
|
wl_list_for_each(plane, &b->plane_list, link) {
|
|
if (plane->type != WDRM_PLANE_TYPE_OVERLAY)
|
|
continue;
|
|
|
|
drmModeSetPlane(b->drm.fd,
|
|
plane->plane_id,
|
|
output->crtc_id, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Handle KMS GPU being added/removed
|
|
*
|
|
* If the device being added/removed is the KMS device, we activate/deactivate
|
|
* the compositor session.
|
|
*
|
|
* @param compositor The compositor instance.
|
|
* @param device The device being added/removed.
|
|
* @param added Whether the device is being added (or removed)
|
|
*/
|
|
static void
|
|
drm_device_changed(struct weston_compositor *compositor,
|
|
dev_t device, bool added)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(compositor);
|
|
|
|
if (b->drm.fd < 0 || b->drm.devnum != device)
|
|
return;
|
|
|
|
compositor->session_active = added;
|
|
wl_signal_emit(&compositor->session_signal, compositor);
|
|
}
|
|
|
|
/**
|
|
* Determines whether or not a device is capable of modesetting. If successful,
|
|
* sets b->drm.fd and b->drm.filename to the opened device.
|
|
*/
|
|
static bool
|
|
drm_device_is_kms(struct drm_backend *b, struct udev_device *device)
|
|
{
|
|
const char *filename = udev_device_get_devnode(device);
|
|
const char *sysnum = udev_device_get_sysnum(device);
|
|
dev_t devnum = udev_device_get_devnum(device);
|
|
drmModeRes *res;
|
|
int id = -1, fd;
|
|
|
|
if (!filename)
|
|
return false;
|
|
|
|
fd = weston_launcher_open(b->compositor->launcher, filename, O_RDWR);
|
|
if (fd < 0)
|
|
return false;
|
|
|
|
res = drmModeGetResources(fd);
|
|
if (!res)
|
|
goto out_fd;
|
|
|
|
if (res->count_crtcs <= 0 || res->count_connectors <= 0 ||
|
|
res->count_encoders <= 0)
|
|
goto out_res;
|
|
|
|
if (sysnum)
|
|
id = atoi(sysnum);
|
|
if (!sysnum || id < 0) {
|
|
weston_log("couldn't get sysnum for device %s\n", filename);
|
|
goto out_res;
|
|
}
|
|
|
|
/* We can be called successfully on multiple devices; if we have,
|
|
* clean up old entries. */
|
|
if (b->drm.fd >= 0)
|
|
weston_launcher_close(b->compositor->launcher, b->drm.fd);
|
|
free(b->drm.filename);
|
|
|
|
b->drm.fd = fd;
|
|
b->drm.id = id;
|
|
b->drm.filename = strdup(filename);
|
|
b->drm.devnum = devnum;
|
|
|
|
drmModeFreeResources(res);
|
|
|
|
return true;
|
|
|
|
out_res:
|
|
drmModeFreeResources(res);
|
|
out_fd:
|
|
weston_launcher_close(b->compositor->launcher, fd);
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Find primary GPU
|
|
* Some systems may have multiple DRM devices attached to a single seat. This
|
|
* function loops over all devices and tries to find a PCI device with the
|
|
* boot_vga sysfs attribute set to 1.
|
|
* If no such device is found, the first DRM device reported by udev is used.
|
|
* Devices are also vetted to make sure they are are capable of modesetting,
|
|
* rather than pure render nodes (GPU with no display), or pure
|
|
* memory-allocation devices (VGEM).
|
|
*/
|
|
static struct udev_device*
|
|
find_primary_gpu(struct drm_backend *b, const char *seat)
|
|
{
|
|
struct udev_enumerate *e;
|
|
struct udev_list_entry *entry;
|
|
const char *path, *device_seat, *id;
|
|
struct udev_device *device, *drm_device, *pci;
|
|
|
|
e = udev_enumerate_new(b->udev);
|
|
udev_enumerate_add_match_subsystem(e, "drm");
|
|
udev_enumerate_add_match_sysname(e, "card[0-9]*");
|
|
|
|
udev_enumerate_scan_devices(e);
|
|
drm_device = NULL;
|
|
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
|
|
bool is_boot_vga = false;
|
|
|
|
path = udev_list_entry_get_name(entry);
|
|
device = udev_device_new_from_syspath(b->udev, path);
|
|
if (!device)
|
|
continue;
|
|
device_seat = udev_device_get_property_value(device, "ID_SEAT");
|
|
if (!device_seat)
|
|
device_seat = default_seat;
|
|
if (strcmp(device_seat, seat)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
pci = udev_device_get_parent_with_subsystem_devtype(device,
|
|
"pci", NULL);
|
|
if (pci) {
|
|
id = udev_device_get_sysattr_value(pci, "boot_vga");
|
|
if (id && !strcmp(id, "1"))
|
|
is_boot_vga = true;
|
|
}
|
|
|
|
/* If we already have a modesetting-capable device, and this
|
|
* device isn't our boot-VGA device, we aren't going to use
|
|
* it. */
|
|
if (!is_boot_vga && drm_device) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* Make sure this device is actually capable of modesetting;
|
|
* if this call succeeds, b->drm.{fd,filename} will be set,
|
|
* and any old values freed. */
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
continue;
|
|
}
|
|
|
|
/* There can only be one boot_vga device, and we try to use it
|
|
* at all costs. */
|
|
if (is_boot_vga) {
|
|
if (drm_device)
|
|
udev_device_unref(drm_device);
|
|
drm_device = device;
|
|
break;
|
|
}
|
|
|
|
/* Per the (!is_boot_vga && drm_device) test above, we only
|
|
* trump existing saved devices with boot-VGA devices, so if
|
|
* we end up here, this must be the first device we've seen. */
|
|
assert(!drm_device);
|
|
drm_device = device;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(!!drm_device == (b->drm.fd >= 0));
|
|
|
|
udev_enumerate_unref(e);
|
|
return drm_device;
|
|
}
|
|
|
|
static struct udev_device *
|
|
open_specific_drm_device(struct drm_backend *b, const char *name)
|
|
{
|
|
struct udev_device *device;
|
|
|
|
device = udev_device_new_from_subsystem_sysname(b->udev, "drm", name);
|
|
if (!device) {
|
|
weston_log("ERROR: could not open DRM device '%s'\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
if (!drm_device_is_kms(b, device)) {
|
|
udev_device_unref(device);
|
|
weston_log("ERROR: DRM device '%s' is not a KMS device.\n", name);
|
|
return NULL;
|
|
}
|
|
|
|
/* If we're returning a device to use, we must have an open FD for
|
|
* it. */
|
|
assert(b->drm.fd >= 0);
|
|
|
|
return device;
|
|
}
|
|
|
|
static void
|
|
planes_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
|
|
switch (key) {
|
|
case KEY_C:
|
|
b->cursors_are_broken ^= 1;
|
|
break;
|
|
case KEY_V:
|
|
/* We don't support overlay-plane usage with legacy KMS. */
|
|
if (b->atomic_modeset)
|
|
b->sprites_are_broken ^= 1;
|
|
break;
|
|
case KEY_O:
|
|
b->sprites_hidden ^= 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef BUILD_VAAPI_RECORDER
|
|
static void
|
|
recorder_destroy(struct drm_output *output)
|
|
{
|
|
vaapi_recorder_destroy(output->recorder);
|
|
output->recorder = NULL;
|
|
|
|
output->base.disable_planes--;
|
|
|
|
wl_list_remove(&output->recorder_frame_listener.link);
|
|
weston_log("[libva recorder] done\n");
|
|
}
|
|
|
|
static void
|
|
recorder_frame_notify(struct wl_listener *listener, void *data)
|
|
{
|
|
struct drm_output *output;
|
|
struct drm_backend *b;
|
|
int fd, ret;
|
|
|
|
output = container_of(listener, struct drm_output,
|
|
recorder_frame_listener);
|
|
b = to_drm_backend(output->base.compositor);
|
|
|
|
if (!output->recorder)
|
|
return;
|
|
|
|
ret = drmPrimeHandleToFD(b->drm.fd,
|
|
output->scanout_plane->state_cur->fb->handles[0],
|
|
DRM_CLOEXEC, &fd);
|
|
if (ret) {
|
|
weston_log("[libva recorder] "
|
|
"failed to create prime fd for front buffer\n");
|
|
return;
|
|
}
|
|
|
|
ret = vaapi_recorder_frame(output->recorder, fd,
|
|
output->scanout_plane->state_cur->fb->strides[0]);
|
|
if (ret < 0) {
|
|
weston_log("[libva recorder] aborted: %s\n", strerror(errno));
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
|
|
static void *
|
|
create_recorder(struct drm_backend *b, int width, int height,
|
|
const char *filename)
|
|
{
|
|
int fd;
|
|
drm_magic_t magic;
|
|
|
|
fd = open(b->drm.filename, O_RDWR | O_CLOEXEC);
|
|
if (fd < 0)
|
|
return NULL;
|
|
|
|
drmGetMagic(fd, &magic);
|
|
drmAuthMagic(b->drm.fd, magic);
|
|
|
|
return vaapi_recorder_create(fd, width, height, filename);
|
|
}
|
|
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b = data;
|
|
struct drm_output *output;
|
|
int width, height;
|
|
|
|
output = container_of(b->compositor->output_list.next,
|
|
struct drm_output, base.link);
|
|
|
|
if (!output->recorder) {
|
|
if (output->gbm_format != GBM_FORMAT_XRGB8888) {
|
|
weston_log("failed to start vaapi recorder: "
|
|
"output format not supported\n");
|
|
return;
|
|
}
|
|
|
|
width = output->base.current_mode->width;
|
|
height = output->base.current_mode->height;
|
|
|
|
output->recorder =
|
|
create_recorder(b, width, height, "capture.h264");
|
|
if (!output->recorder) {
|
|
weston_log("failed to create vaapi recorder\n");
|
|
return;
|
|
}
|
|
|
|
output->base.disable_planes++;
|
|
|
|
output->recorder_frame_listener.notify = recorder_frame_notify;
|
|
wl_signal_add(&output->base.frame_signal,
|
|
&output->recorder_frame_listener);
|
|
|
|
weston_output_schedule_repaint(&output->base);
|
|
|
|
weston_log("[libva recorder] initialized\n");
|
|
} else {
|
|
recorder_destroy(output);
|
|
}
|
|
}
|
|
#else
|
|
static void
|
|
recorder_binding(struct weston_keyboard *keyboard, const struct timespec *time,
|
|
uint32_t key, void *data)
|
|
{
|
|
weston_log("Compiled without libva support\n");
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
switch_to_gl_renderer(struct drm_backend *b)
|
|
{
|
|
struct drm_output *output;
|
|
bool dmabuf_support_inited;
|
|
bool linux_explicit_sync_inited;
|
|
|
|
if (!b->use_pixman)
|
|
return;
|
|
|
|
dmabuf_support_inited = !!b->compositor->renderer->import_dmabuf;
|
|
linux_explicit_sync_inited =
|
|
b->compositor->capabilities & WESTON_CAP_EXPLICIT_SYNC;
|
|
|
|
weston_log("Switching to GL renderer\n");
|
|
|
|
b->gbm = create_gbm_device(b->drm.fd);
|
|
if (!b->gbm) {
|
|
weston_log("Failed to create gbm device. "
|
|
"Aborting renderer switch\n");
|
|
return;
|
|
}
|
|
|
|
wl_list_for_each(output, &b->compositor->output_list, base.link)
|
|
pixman_renderer_output_destroy(&output->base);
|
|
|
|
b->compositor->renderer->destroy(b->compositor);
|
|
|
|
if (drm_backend_create_gl_renderer(b) < 0) {
|
|
gbm_device_destroy(b->gbm);
|
|
weston_log("Failed to create GL renderer. Quitting.\n");
|
|
/* FIXME: we need a function to shutdown cleanly */
|
|
assert(0);
|
|
}
|
|
|
|
wl_list_for_each(output, &b->compositor->output_list, base.link)
|
|
drm_output_init_egl(output, b);
|
|
|
|
b->use_pixman = 0;
|
|
|
|
if (!dmabuf_support_inited && b->compositor->renderer->import_dmabuf) {
|
|
if (linux_dmabuf_setup(b->compositor) < 0)
|
|
weston_log("Error: initializing dmabuf "
|
|
"support failed.\n");
|
|
}
|
|
|
|
if (!linux_explicit_sync_inited &&
|
|
(b->compositor->capabilities & WESTON_CAP_EXPLICIT_SYNC)) {
|
|
if (linux_explicit_synchronization_setup(b->compositor) < 0)
|
|
weston_log("Error: initializing explicit "
|
|
" synchronization support failed.\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
renderer_switch_binding(struct weston_keyboard *keyboard,
|
|
const struct timespec *time, uint32_t key, void *data)
|
|
{
|
|
struct drm_backend *b =
|
|
to_drm_backend(keyboard->seat->compositor);
|
|
|
|
switch_to_gl_renderer(b);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_start_repaint_loop(struct weston_output *output_base)
|
|
{
|
|
weston_output_finish_frame(output_base, NULL,
|
|
WP_PRESENTATION_FEEDBACK_INVALID);
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_submit_frame(struct drm_output *output,
|
|
struct drm_fb *fb)
|
|
{
|
|
struct drm_backend *b = to_drm_backend(output->base.compositor);
|
|
int fd, ret;
|
|
|
|
assert(fb->num_planes == 1);
|
|
ret = drmPrimeHandleToFD(b->drm.fd, fb->handles[0], DRM_CLOEXEC, &fd);
|
|
if (ret) {
|
|
weston_log("drmPrimeHandleFD failed, errno=%d\n", errno);
|
|
return -1;
|
|
}
|
|
|
|
drm_fb_ref(fb);
|
|
ret = output->virtual_submit_frame(&output->base, fd, fb->strides[0],
|
|
fb);
|
|
if (ret < 0) {
|
|
drm_fb_unref(fb);
|
|
close(fd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_repaint(struct weston_output *output_base,
|
|
pixman_region32_t *damage,
|
|
void *repaint_data)
|
|
{
|
|
struct drm_pending_state *pending_state = repaint_data;
|
|
struct drm_output_state *state = NULL;
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_plane *scanout_plane = output->scanout_plane;
|
|
struct drm_plane_state *scanout_state;
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->disable_pending || output->destroy_pending)
|
|
goto err;
|
|
|
|
/* Drop frame if there isn't free buffers */
|
|
if (!gbm_surface_has_free_buffers(output->gbm_surface)) {
|
|
weston_log("%s: Drop frame!!\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
assert(!output->state_last);
|
|
|
|
/* If planes have been disabled in the core, we might not have
|
|
* hit assign_planes at all, so might not have valid output state
|
|
* here. */
|
|
state = drm_pending_state_get_output(pending_state, output);
|
|
if (!state)
|
|
state = drm_output_state_duplicate(output->state_cur,
|
|
pending_state,
|
|
DRM_OUTPUT_STATE_CLEAR_PLANES);
|
|
|
|
drm_output_render(state, damage);
|
|
scanout_state = drm_output_state_get_plane(state, scanout_plane);
|
|
if (!scanout_state || !scanout_state->fb)
|
|
goto err;
|
|
|
|
if (drm_virtual_output_submit_frame(output, scanout_state->fb) < 0)
|
|
goto err;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
drm_output_state_free(state);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_deinit(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
drm_output_fini_egl(output);
|
|
|
|
drm_virtual_plane_destroy(output->scanout_plane);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_destroy(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->base.enabled)
|
|
drm_virtual_output_deinit(&output->base);
|
|
|
|
weston_output_release(&output->base);
|
|
|
|
drm_output_state_free(output->state_cur);
|
|
|
|
free(output);
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_enable(struct weston_output *output_base)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_backend *b = to_drm_backend(output_base->compositor);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (b->use_pixman) {
|
|
weston_log("Not support pixman renderer on Virtual output\n");
|
|
goto err;
|
|
}
|
|
|
|
if (!output->virtual_submit_frame) {
|
|
weston_log("The virtual_submit_frame hook is not set\n");
|
|
goto err;
|
|
}
|
|
|
|
output->scanout_plane = drm_virtual_plane_create(b, output);
|
|
if (!output->scanout_plane) {
|
|
weston_log("Failed to find primary plane for output %s\n",
|
|
output->base.name);
|
|
return -1;
|
|
}
|
|
|
|
if (drm_output_init_egl(output, b) < 0) {
|
|
weston_log("Failed to init output gl state\n");
|
|
goto err;
|
|
}
|
|
|
|
output->base.start_repaint_loop = drm_virtual_output_start_repaint_loop;
|
|
output->base.repaint = drm_virtual_output_repaint;
|
|
output->base.assign_planes = drm_assign_planes;
|
|
output->base.set_dpms = NULL;
|
|
output->base.switch_mode = NULL;
|
|
output->base.gamma_size = 0;
|
|
output->base.set_gamma = NULL;
|
|
|
|
weston_compositor_stack_plane(b->compositor,
|
|
&output->scanout_plane->base,
|
|
&b->compositor->primary_plane);
|
|
|
|
return 0;
|
|
err:
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_disable(struct weston_output *base)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
|
|
assert(output->virtual);
|
|
|
|
if (output->base.enabled)
|
|
drm_virtual_output_deinit(&output->base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct weston_output *
|
|
drm_virtual_output_create(struct weston_compositor *c, char *name)
|
|
{
|
|
struct drm_output *output;
|
|
|
|
output = zalloc(sizeof *output);
|
|
if (!output)
|
|
return NULL;
|
|
|
|
output->virtual = true;
|
|
output->gbm_bo_flags = GBM_BO_USE_LINEAR | GBM_BO_USE_RENDERING;
|
|
|
|
weston_output_init(&output->base, c, name);
|
|
|
|
output->base.enable = drm_virtual_output_enable;
|
|
output->base.destroy = drm_virtual_output_destroy;
|
|
output->base.disable = drm_virtual_output_disable;
|
|
output->base.attach_head = NULL;
|
|
|
|
output->state_cur = drm_output_state_alloc(output, NULL);
|
|
|
|
weston_compositor_add_pending_output(&output->base, c);
|
|
|
|
return &output->base;
|
|
}
|
|
|
|
static uint32_t
|
|
drm_virtual_output_set_gbm_format(struct weston_output *base,
|
|
const char *gbm_format)
|
|
{
|
|
struct drm_output *output = to_drm_output(base);
|
|
struct drm_backend *b = to_drm_backend(base->compositor);
|
|
|
|
if (parse_gbm_format(gbm_format, b->gbm_format, &output->gbm_format) == -1)
|
|
output->gbm_format = b->gbm_format;
|
|
|
|
return output->gbm_format;
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_set_submit_frame_cb(struct weston_output *output_base,
|
|
submit_frame_cb cb)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
|
|
output->virtual_submit_frame = cb;
|
|
}
|
|
|
|
static int
|
|
drm_virtual_output_get_fence_fd(struct weston_output *output_base)
|
|
{
|
|
return gl_renderer->create_fence_fd(output_base);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_buffer_released(struct drm_fb *fb)
|
|
{
|
|
drm_fb_unref(fb);
|
|
}
|
|
|
|
static void
|
|
drm_virtual_output_finish_frame(struct weston_output *output_base,
|
|
struct timespec *stamp,
|
|
uint32_t presented_flags)
|
|
{
|
|
struct drm_output *output = to_drm_output(output_base);
|
|
struct drm_plane_state *ps;
|
|
|
|
wl_list_for_each(ps, &output->state_cur->plane_list, link)
|
|
ps->complete = true;
|
|
|
|
drm_output_state_free(output->state_last);
|
|
output->state_last = NULL;
|
|
|
|
weston_output_finish_frame(&output->base, stamp, presented_flags);
|
|
|
|
/* We can't call this from frame_notify, because the output's
|
|
* repaint needed flag is cleared just after that */
|
|
if (output->recorder)
|
|
weston_output_schedule_repaint(&output->base);
|
|
}
|
|
|
|
static const struct weston_drm_output_api api = {
|
|
drm_output_set_mode,
|
|
drm_output_set_gbm_format,
|
|
drm_output_set_seat,
|
|
};
|
|
|
|
static const struct weston_drm_virtual_output_api virt_api = {
|
|
drm_virtual_output_create,
|
|
drm_virtual_output_set_gbm_format,
|
|
drm_virtual_output_set_submit_frame_cb,
|
|
drm_virtual_output_get_fence_fd,
|
|
drm_virtual_output_buffer_released,
|
|
drm_virtual_output_finish_frame
|
|
};
|
|
|
|
static struct drm_backend *
|
|
drm_backend_create(struct weston_compositor *compositor,
|
|
struct weston_drm_backend_config *config)
|
|
{
|
|
struct drm_backend *b;
|
|
struct udev_device *drm_device;
|
|
struct wl_event_loop *loop;
|
|
const char *seat_id = default_seat;
|
|
const char *session_seat;
|
|
int ret;
|
|
|
|
session_seat = getenv("XDG_SEAT");
|
|
if (session_seat)
|
|
seat_id = session_seat;
|
|
|
|
if (config->seat_id)
|
|
seat_id = config->seat_id;
|
|
|
|
weston_log("initializing drm backend\n");
|
|
|
|
b = zalloc(sizeof *b);
|
|
if (b == NULL)
|
|
return NULL;
|
|
|
|
b->state_invalid = true;
|
|
b->drm.fd = -1;
|
|
wl_array_init(&b->unused_crtcs);
|
|
|
|
b->compositor = compositor;
|
|
b->use_pixman = config->use_pixman;
|
|
b->pageflip_timeout = config->pageflip_timeout;
|
|
b->use_pixman_shadow = config->use_pixman_shadow;
|
|
|
|
b->debug = weston_compositor_add_log_scope(compositor->weston_log_ctx,
|
|
"drm-backend",
|
|
"Debug messages from DRM/KMS backend\n",
|
|
NULL, NULL);
|
|
|
|
compositor->backend = &b->base;
|
|
|
|
if (parse_gbm_format(config->gbm_format, GBM_FORMAT_XRGB8888, &b->gbm_format) < 0)
|
|
goto err_compositor;
|
|
|
|
/* Check if we run drm-backend using weston-launch */
|
|
compositor->launcher = weston_launcher_connect(compositor, config->tty,
|
|
seat_id, true);
|
|
if (compositor->launcher == NULL) {
|
|
weston_log("fatal: drm backend should be run using "
|
|
"weston-launch binary, or your system should "
|
|
"provide the logind D-Bus API.\n");
|
|
goto err_compositor;
|
|
}
|
|
|
|
b->udev = udev_new();
|
|
if (b->udev == NULL) {
|
|
weston_log("failed to initialize udev context\n");
|
|
goto err_launcher;
|
|
}
|
|
|
|
b->session_listener.notify = session_notify;
|
|
wl_signal_add(&compositor->session_signal, &b->session_listener);
|
|
|
|
if (config->specific_device)
|
|
drm_device = open_specific_drm_device(b, config->specific_device);
|
|
else
|
|
drm_device = find_primary_gpu(b, seat_id);
|
|
if (drm_device == NULL) {
|
|
weston_log("no drm device found\n");
|
|
goto err_udev;
|
|
}
|
|
|
|
if (init_kms_caps(b) < 0) {
|
|
weston_log("failed to initialize kms\n");
|
|
goto err_udev_dev;
|
|
}
|
|
|
|
if (b->use_pixman) {
|
|
if (init_pixman(b) < 0) {
|
|
weston_log("failed to initialize pixman renderer\n");
|
|
goto err_udev_dev;
|
|
}
|
|
} else {
|
|
if (init_egl(b) < 0) {
|
|
weston_log("failed to initialize egl\n");
|
|
goto err_udev_dev;
|
|
}
|
|
}
|
|
|
|
b->base.destroy = drm_destroy;
|
|
b->base.repaint_begin = drm_repaint_begin;
|
|
b->base.repaint_flush = drm_repaint_flush;
|
|
b->base.repaint_cancel = drm_repaint_cancel;
|
|
b->base.create_output = drm_output_create;
|
|
b->base.device_changed = drm_device_changed;
|
|
|
|
weston_setup_vt_switch_bindings(compositor);
|
|
|
|
wl_list_init(&b->plane_list);
|
|
create_sprites(b);
|
|
|
|
if (udev_input_init(&b->input,
|
|
compositor, b->udev, seat_id,
|
|
config->configure_device) < 0) {
|
|
weston_log("failed to create input devices\n");
|
|
goto err_sprite;
|
|
}
|
|
|
|
if (drm_backend_create_heads(b, drm_device) < 0) {
|
|
weston_log("Failed to create heads for %s\n", b->drm.filename);
|
|
goto err_udev_input;
|
|
}
|
|
|
|
/* A this point we have some idea of whether or not we have a working
|
|
* cursor plane. */
|
|
if (!b->cursors_are_broken)
|
|
compositor->capabilities |= WESTON_CAP_CURSOR_PLANE;
|
|
|
|
loop = wl_display_get_event_loop(compositor->wl_display);
|
|
b->drm_source =
|
|
wl_event_loop_add_fd(loop, b->drm.fd,
|
|
WL_EVENT_READABLE, on_drm_input, b);
|
|
|
|
b->udev_monitor = udev_monitor_new_from_netlink(b->udev, "udev");
|
|
if (b->udev_monitor == NULL) {
|
|
weston_log("failed to initialize udev monitor\n");
|
|
goto err_drm_source;
|
|
}
|
|
udev_monitor_filter_add_match_subsystem_devtype(b->udev_monitor,
|
|
"drm", NULL);
|
|
b->udev_drm_source =
|
|
wl_event_loop_add_fd(loop,
|
|
udev_monitor_get_fd(b->udev_monitor),
|
|
WL_EVENT_READABLE, udev_drm_event, b);
|
|
|
|
if (udev_monitor_enable_receiving(b->udev_monitor) < 0) {
|
|
weston_log("failed to enable udev-monitor receiving\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
udev_device_unref(drm_device);
|
|
|
|
weston_compositor_add_debug_binding(compositor, KEY_O,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_C,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_V,
|
|
planes_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_Q,
|
|
recorder_binding, b);
|
|
weston_compositor_add_debug_binding(compositor, KEY_W,
|
|
renderer_switch_binding, b);
|
|
|
|
if (compositor->renderer->import_dmabuf) {
|
|
if (linux_dmabuf_setup(compositor) < 0)
|
|
weston_log("Error: initializing dmabuf "
|
|
"support failed.\n");
|
|
}
|
|
|
|
if (compositor->capabilities & WESTON_CAP_EXPLICIT_SYNC) {
|
|
if (linux_explicit_synchronization_setup(compositor) < 0)
|
|
weston_log("Error: initializing explicit "
|
|
" synchronization support failed.\n");
|
|
}
|
|
|
|
ret = weston_plugin_api_register(compositor, WESTON_DRM_OUTPUT_API_NAME,
|
|
&api, sizeof(api));
|
|
|
|
if (ret < 0) {
|
|
weston_log("Failed to register output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
ret = weston_plugin_api_register(compositor,
|
|
WESTON_DRM_VIRTUAL_OUTPUT_API_NAME,
|
|
&virt_api, sizeof(virt_api));
|
|
if (ret < 0) {
|
|
weston_log("Failed to register virtual output API.\n");
|
|
goto err_udev_monitor;
|
|
}
|
|
|
|
return b;
|
|
|
|
err_udev_monitor:
|
|
wl_event_source_remove(b->udev_drm_source);
|
|
udev_monitor_unref(b->udev_monitor);
|
|
err_drm_source:
|
|
wl_event_source_remove(b->drm_source);
|
|
err_udev_input:
|
|
udev_input_destroy(&b->input);
|
|
err_sprite:
|
|
if (b->gbm)
|
|
gbm_device_destroy(b->gbm);
|
|
destroy_sprites(b);
|
|
err_udev_dev:
|
|
udev_device_unref(drm_device);
|
|
err_launcher:
|
|
weston_launcher_destroy(compositor->launcher);
|
|
err_udev:
|
|
udev_unref(b->udev);
|
|
err_compositor:
|
|
weston_compositor_shutdown(compositor);
|
|
free(b);
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
config_init_to_defaults(struct weston_drm_backend_config *config)
|
|
{
|
|
config->use_pixman_shadow = true;
|
|
}
|
|
|
|
WL_EXPORT int
|
|
weston_backend_init(struct weston_compositor *compositor,
|
|
struct weston_backend_config *config_base)
|
|
{
|
|
struct drm_backend *b;
|
|
struct weston_drm_backend_config config = {{ 0, }};
|
|
|
|
if (config_base == NULL ||
|
|
config_base->struct_version != WESTON_DRM_BACKEND_CONFIG_VERSION ||
|
|
config_base->struct_size > sizeof(struct weston_drm_backend_config)) {
|
|
weston_log("drm backend config structure is invalid\n");
|
|
return -1;
|
|
}
|
|
|
|
config_init_to_defaults(&config);
|
|
memcpy(&config, config_base, config_base->struct_size);
|
|
|
|
b = drm_backend_create(compositor, &config);
|
|
if (b == NULL)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|