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authorSimon Ser <contact@emersion.fr>2021-08-25 09:33:19 +0200
committerSimon Zeni <simon@bl4ckb0ne.ca>2021-08-25 09:57:20 -0400
commit3ce2ea9e16fcd1bfab4ec9d5994fa721c5d58dcd (patch)
tree1bce6445158968c4d73cd73be30c141468dbc84c /include/render/allocator
parentb37731cdbbef4dc52033c2d26b04d2329720fa07 (diff)
Move allocator stuff into new directory
Add render/allocator/ and include/render/allocator/ to hold everything allocator-related.
Diffstat (limited to 'include/render/allocator')
-rw-r--r--include/render/allocator/allocator.h54
-rw-r--r--include/render/allocator/drm_dumb.h37
-rw-r--r--include/render/allocator/gbm.h34
-rw-r--r--include/render/allocator/shm.h23
4 files changed, 148 insertions, 0 deletions
diff --git a/include/render/allocator/allocator.h b/include/render/allocator/allocator.h
new file mode 100644
index 00000000..d67116cd
--- /dev/null
+++ b/include/render/allocator/allocator.h
@@ -0,0 +1,54 @@
+#ifndef RENDER_ALLOCATOR_ALLOCATOR_H
+#define RENDER_ALLOCATOR_ALLOCATOR_H
+
+#include <stdbool.h>
+#include <wayland-server-core.h>
+#include <wlr/render/drm_format_set.h>
+
+struct wlr_allocator;
+struct wlr_backend;
+struct wlr_renderer;
+
+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;
+
+ // Capabilites of the buffers created with this allocator
+ uint32_t buffer_caps;
+
+ struct {
+ struct wl_signal destroy;
+ } events;
+};
+
+/**
+ * Creates the adequate wlr_allocator given a backend and a renderer
+ */
+struct wlr_allocator *wlr_allocator_autocreate(struct wlr_backend *backend,
+ struct wlr_renderer *renderer);
+/**
+ * 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, uint32_t buffer_caps);
+
+struct wlr_allocator *allocator_autocreate_with_drm_fd(
+ struct wlr_backend *backend, struct wlr_renderer *renderer, int drm_fd);
+
+#endif
diff --git a/include/render/allocator/drm_dumb.h b/include/render/allocator/drm_dumb.h
new file mode 100644
index 00000000..7e37acfb
--- /dev/null
+++ b/include/render/allocator/drm_dumb.h
@@ -0,0 +1,37 @@
+#ifndef RENDER_ALLOCATOR_DRM_DUMB_H
+#define RENDER_ALLOCATOR_DRM_DUMB_H
+
+#include <wlr/render/dmabuf.h>
+#include <wlr/types/wlr_buffer.h>
+#include "render/allocator/allocator.h"
+
+struct wlr_drm_dumb_buffer {
+ struct wlr_buffer base;
+ struct wl_list link; // wlr_drm_dumb_allocator::buffers
+
+ int drm_fd; // -1 if the allocator has been destroyed
+ struct wlr_dmabuf_attributes dmabuf;
+
+ uint32_t format;
+ uint32_t handle;
+ uint32_t stride;
+ uint32_t width, height;
+
+ uint64_t size;
+ void *data;
+};
+
+struct wlr_drm_dumb_allocator {
+ struct wlr_allocator base;
+ struct wl_list buffers; // wlr_drm_dumb_buffer::link
+ int drm_fd;
+};
+
+/**
+ * Creates a new drm dumb allocator from a DRM FD.
+ *
+ * Does not take ownership over the FD.
+ */
+struct wlr_allocator *wlr_drm_dumb_allocator_create(int fd);
+
+#endif
diff --git a/include/render/allocator/gbm.h b/include/render/allocator/gbm.h
new file mode 100644
index 00000000..eb112e7c
--- /dev/null
+++ b/include/render/allocator/gbm.h
@@ -0,0 +1,34 @@
+#ifndef RENDER_ALLOCATOR_GBM_H
+#define RENDER_ALLOCATOR_GBM_H
+
+#include <gbm.h>
+#include <wlr/render/dmabuf.h>
+#include <wlr/types/wlr_buffer.h>
+#include "render/allocator/allocator.h"
+
+struct wlr_gbm_buffer {
+ struct wlr_buffer base;
+
+ struct wl_list link; // wlr_gbm_allocator.buffers
+
+ struct gbm_bo *gbm_bo; // NULL if the gbm_device has been destroyed
+ struct wlr_dmabuf_attributes dmabuf;
+};
+
+struct wlr_gbm_allocator {
+ struct wlr_allocator base;
+
+ int fd;
+ struct gbm_device *gbm_device;
+
+ struct wl_list buffers; // wlr_gbm_buffer.link
+};
+
+/**
+ * Creates a new GBM allocator from a DRM FD.
+ *
+ * Does not take ownership over the FD.
+ */
+struct wlr_allocator *wlr_gbm_allocator_create(int drm_fd);
+
+#endif
diff --git a/include/render/allocator/shm.h b/include/render/allocator/shm.h
new file mode 100644
index 00000000..4b80e475
--- /dev/null
+++ b/include/render/allocator/shm.h
@@ -0,0 +1,23 @@
+#ifndef RENDER_ALLOCATOR_SHM_H
+#define RENDER_ALLOCATOR_SHM_H
+
+#include <wlr/types/wlr_buffer.h>
+#include "render/allocator/allocator.h"
+
+struct wlr_shm_buffer {
+ struct wlr_buffer base;
+ struct wlr_shm_attributes shm;
+ void *data;
+ size_t size;
+};
+
+struct wlr_shm_allocator {
+ struct wlr_allocator base;
+};
+
+/**
+ * Creates a new shared memory allocator.
+ */
+struct wlr_allocator *wlr_shm_allocator_create(void);
+
+#endif