backend: automatically create allocator
Introduce a new backend_get_allocator function that automatically creates an allocator for the backend if the backend has a renderer.
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@ -19,6 +19,7 @@
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#include <wlr/util/log.h>
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#include "backend/backend.h"
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#include "backend/multi.h"
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#include "render/allocator.h"
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#include "util/signal.h"
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#if WLR_HAS_X11_BACKEND
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@ -36,6 +37,7 @@ void wlr_backend_init(struct wlr_backend *backend,
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void wlr_backend_finish(struct wlr_backend *backend) {
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wlr_signal_emit_safe(&backend->events.destroy, backend);
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wlr_allocator_destroy(backend->allocator);
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wlr_renderer_destroy(backend->renderer);
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}
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@ -116,6 +118,23 @@ uint32_t backend_get_buffer_caps(struct wlr_backend *backend) {
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return backend->impl->get_buffer_caps(backend);
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}
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struct wlr_allocator *backend_get_allocator(struct wlr_backend *backend) {
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if (backend->allocator != NULL) {
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return backend->allocator;
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}
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struct wlr_renderer *renderer = wlr_backend_get_renderer(backend);
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if (renderer == NULL) {
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return NULL;
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}
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backend->allocator = wlr_allocator_autocreate(backend, renderer);
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if (backend->allocator == NULL) {
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wlr_log(WLR_ERROR, "Failed to create backend allocator");
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}
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return backend->allocator;
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}
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static size_t parse_outputs_env(const char *name) {
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const char *outputs_str = getenv(name);
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if (outputs_str == NULL) {
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@ -10,4 +10,10 @@
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*/
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uint32_t backend_get_buffer_caps(struct wlr_backend *backend);
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/**
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* Get the backend's allocator. Automatically creates the allocator if
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* necessary.
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*/
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struct wlr_allocator *backend_get_allocator(struct wlr_backend *backend);
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#endif
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@ -29,6 +29,7 @@ struct wlr_backend {
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// Private state
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struct wlr_renderer *renderer;
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struct wlr_allocator *allocator;
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};
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/**
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