mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-04 20:55:58 +01:00
backend: add wlr_backend_{test,commit}()
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parent
fc4996d853
commit
78c76ddd09
5 changed files with 135 additions and 29 deletions
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@ -15,6 +15,7 @@
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#include "backend/backend.h"
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#include "backend/multi.h"
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#include "render/allocator/allocator.h"
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#include "types/wlr_output.h"
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#include "util/env.h"
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#include "util/time.h"
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@ -445,3 +446,52 @@ error:
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#endif
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return NULL;
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}
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bool wlr_backend_test(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len) {
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if (backend->impl->test) {
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return backend->impl->test(backend, states, states_len);
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}
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for (size_t i = 0; i < states_len; i++) {
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const struct wlr_backend_output_state *state = &states[i];
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assert(state->output->backend == backend);
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if (!wlr_output_test_state(states[i].output, &state->base)) {
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return false;
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}
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}
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return true;
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}
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bool wlr_backend_commit(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len) {
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if (!backend->impl->commit) {
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for (size_t i = 0; i < states_len; i++) {
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const struct wlr_backend_output_state *state = &states[i];
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if (!wlr_output_commit_state(state->output, &state->base)) {
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return false;
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}
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}
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return true;
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}
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for (size_t i = 0; i < states_len; i++) {
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const struct wlr_backend_output_state *state = &states[i];
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if (!output_prepare_commit(state->output, &state->base)) {
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return false;
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}
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}
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if (!backend->impl->commit(backend, states, states_len)) {
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return false;
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}
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for (size_t i = 0; i < states_len; i++) {
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const struct wlr_backend_output_state *state = &states[i];
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output_apply_commit(state->output, &state->base);
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}
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return true;
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}
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@ -22,4 +22,7 @@ bool output_cursor_set_texture(struct wlr_output_cursor *cursor,
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void output_defer_present(struct wlr_output *output, struct wlr_output_event_present event);
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bool output_prepare_commit(struct wlr_output *output, const struct wlr_output_state *state);
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void output_apply_commit(struct wlr_output *output, const struct wlr_output_state *state);
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#endif
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@ -10,10 +10,19 @@
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#define WLR_BACKEND_H
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_output.h>
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struct wlr_session;
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struct wlr_backend_impl;
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/**
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* Per-output state for wlr_backend_test() and wlr_backend_commit().
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*/
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struct wlr_backend_output_state {
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struct wlr_output *output;
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struct wlr_output_state base;
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};
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/**
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* A backend provides a set of input and output devices.
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*/
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@ -62,4 +71,23 @@ void wlr_backend_destroy(struct wlr_backend *backend);
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*/
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int wlr_backend_get_drm_fd(struct wlr_backend *backend);
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/**
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* Atomically test a new configuration for multiple outputs.
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*
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* Some backends (e.g. DRM) have global backend-wide limitations. This function
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* can be used to check whether changes across multiple outputs are supported by
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* the backend.
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*/
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bool wlr_backend_test(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len);
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/**
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* Atomically apply a new configuration for multiple outputs.
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*
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* There is no guarantee that the changes will be applied atomically. Users
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* should call wlr_backend_test() first to check that the new state is supported
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* by the backend.
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*/
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bool wlr_backend_commit(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len);
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#endif
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@ -12,11 +12,17 @@
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#include <stdbool.h>
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#include <wlr/backend.h>
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struct wlr_output_state;
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struct wlr_backend_impl {
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bool (*start)(struct wlr_backend *backend);
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void (*destroy)(struct wlr_backend *backend);
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int (*get_drm_fd)(struct wlr_backend *backend);
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uint32_t (*get_buffer_caps)(struct wlr_backend *backend);
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bool (*test)(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len);
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bool (*commit)(struct wlr_backend *backend,
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const struct wlr_backend_output_state *states, size_t states_len);
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};
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/**
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@ -663,6 +663,51 @@ bool wlr_output_test_state(struct wlr_output *output,
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return success;
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}
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bool output_prepare_commit(struct wlr_output *output, const struct wlr_output_state *state) {
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if (!output_basic_test(output, state)) {
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wlr_log(WLR_ERROR, "Basic output test failed for %s", output->name);
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return false;
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}
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if ((state->committed & WLR_OUTPUT_STATE_BUFFER) &&
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output->idle_frame != NULL) {
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wl_event_source_remove(output->idle_frame);
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output->idle_frame = NULL;
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}
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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struct wlr_output_event_precommit pre_event = {
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.output = output,
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.when = &now,
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.state = state,
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};
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wl_signal_emit_mutable(&output->events.precommit, &pre_event);
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return true;
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}
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void output_apply_commit(struct wlr_output *output, const struct wlr_output_state *state) {
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output->commit_seq++;
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if (output_pending_enabled(output, state)) {
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output->frame_pending = true;
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output->needs_frame = false;
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}
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output_apply_state(output, state);
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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struct wlr_output_event_commit event = {
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.output = output,
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.when = &now,
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.state = state,
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};
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wl_signal_emit_mutable(&output->events.commit, &event);
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}
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bool wlr_output_commit_state(struct wlr_output *output,
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const struct wlr_output_state *state) {
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uint32_t unchanged = output_compare_state(output, state);
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@ -682,22 +727,10 @@ bool wlr_output_commit_state(struct wlr_output *output,
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return false;
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}
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if ((pending.committed & WLR_OUTPUT_STATE_BUFFER) &&
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output->idle_frame != NULL) {
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wl_event_source_remove(output->idle_frame);
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output->idle_frame = NULL;
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if (!output_prepare_commit(output, &pending)) {
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return false;
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}
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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struct wlr_output_event_precommit pre_event = {
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.output = output,
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.when = &now,
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.state = &pending,
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};
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wl_signal_emit_mutable(&output->events.precommit, &pre_event);
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if (!output->impl->commit(output, &pending)) {
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if (new_back_buffer) {
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wlr_buffer_unlock(pending.buffer);
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@ -705,21 +738,7 @@ bool wlr_output_commit_state(struct wlr_output *output,
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return false;
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}
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output->commit_seq++;
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if (output_pending_enabled(output, state)) {
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output->frame_pending = true;
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output->needs_frame = false;
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}
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output_apply_state(output, &pending);
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struct wlr_output_event_commit event = {
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.output = output,
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.when = &now,
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.state = &pending,
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};
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wl_signal_emit_mutable(&output->events.commit, &event);
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output_apply_commit(output, &pending);
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if (new_back_buffer) {
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wlr_buffer_unlock(pending.buffer);
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