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authorSimon Ser <contact@emersion.fr>2020-06-01 19:48:39 +0200
committerSimon Ser <contact@emersion.fr>2020-11-15 22:48:42 +0100
commitf47445f142884dd6b6c3653bfce1a69b5c14b59a (patch)
tree17f3b31b41b72b1fe20c6fc9d73f4522b43b8a96
parentaaa3fcf66fdfd6d23a88a715b33f89c5c89d3edd (diff)
render: introduce wlr_allocator
-rw-r--r--include/render/allocator.h42
-rw-r--r--render/allocator.c20
-rw-r--r--render/meson.build1
3 files changed, 63 insertions, 0 deletions
diff --git a/include/render/allocator.h b/include/render/allocator.h
new file mode 100644
index 00000000..d47184af
--- /dev/null
+++ b/include/render/allocator.h
@@ -0,0 +1,42 @@
+#ifndef RENDER_ALLOCATOR
+#define RENDER_ALLOCATOR
+
+#include <stdbool.h>
+#include <wayland-server-core.h>
+#include <wlr/render/dmabuf.h>
+#include <wlr/render/drm_format_set.h>
+
+struct wlr_allocator;
+
+struct wlr_allocator_interface {
+ struct wlr_buffer *(*create_buffer)(struct wlr_allocator *alloc,
+ int width, int height, const struct wlr_drm_format *format);
+ void (*destroy)(struct wlr_allocator *alloc);
+};
+
+struct wlr_allocator {
+ const struct wlr_allocator_interface *impl;
+
+ struct {
+ struct wl_signal destroy;
+ } events;
+};
+
+/**
+ * Destroy the allocator.
+ */
+void wlr_allocator_destroy(struct wlr_allocator *alloc);
+/**
+ * Allocate a new buffer.
+ *
+ * When the caller is done with it, they must unreference it by calling
+ * wlr_buffer_drop.
+ */
+struct wlr_buffer *wlr_allocator_create_buffer(struct wlr_allocator *alloc,
+ int width, int height, const struct wlr_drm_format *format);
+
+// For wlr_allocator implementors
+void wlr_allocator_init(struct wlr_allocator *alloc,
+ const struct wlr_allocator_interface *impl);
+
+#endif
diff --git a/render/allocator.c b/render/allocator.c
new file mode 100644
index 00000000..3638bd62
--- /dev/null
+++ b/render/allocator.c
@@ -0,0 +1,20 @@
+#include <assert.h>
+#include <stdlib.h>
+#include "render/allocator.h"
+
+void wlr_allocator_init(struct wlr_allocator *alloc,
+ const struct wlr_allocator_interface *impl) {
+ assert(impl && impl->destroy && impl->create_buffer);
+ alloc->impl = impl;
+ wl_signal_init(&alloc->events.destroy);
+}
+
+void wlr_allocator_destroy(struct wlr_allocator *alloc) {
+ wl_signal_emit(&alloc->events.destroy, NULL);
+ alloc->impl->destroy(alloc);
+}
+
+struct wlr_buffer *wlr_allocator_create_buffer(struct wlr_allocator *alloc,
+ int width, int height, const struct wlr_drm_format *format) {
+ return alloc->impl->create_buffer(alloc, width, height, format);
+}
diff --git a/render/meson.build b/render/meson.build
index 9486c22d..58cc6761 100644
--- a/render/meson.build
+++ b/render/meson.build
@@ -1,4 +1,5 @@
wlr_files += files(
+ 'allocator.c',
'dmabuf.c',
'egl.c',
'drm_format_set.c',