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authorGuido Günther <agx@sigxcpu.org>2018-02-23 18:45:16 +0100
committerGuido Günther <agx@sigxcpu.org>2018-03-15 12:40:18 +0100
commit14cdb6153f4293d7e058465ab4acaebd6e1f647c (patch)
treef9a523c0499b80609827378d44105501bf8caf92 /include/wlr
parent2d0db169422b74e5ef7c07965c376273c7bb2961 (diff)
Add initial linux_dmabuf protocol support
Tested with ./weston-simple-dmabuf-drm ./weston-simple-dmabuf-drm --import-immediate=1 ./weston-simple-dmabuf-drm --y-inverted=1 (and combinations) Supports only single plane XRGB dmabufs for now.
Diffstat (limited to 'include/wlr')
-rw-r--r--include/wlr/render.h2
-rw-r--r--include/wlr/render/egl.h28
-rw-r--r--include/wlr/render/interface.h3
-rw-r--r--include/wlr/types/wlr_linux_dmabuf.h84
4 files changed, 117 insertions, 0 deletions
diff --git a/include/wlr/render.h b/include/wlr/render.h
index 77449556..9080175f 100644
--- a/include/wlr/render.h
+++ b/include/wlr/render.h
@@ -123,6 +123,8 @@ bool wlr_texture_upload_drm(struct wlr_texture *tex,
bool wlr_texture_upload_eglimage(struct wlr_texture *tex,
EGLImageKHR image, uint32_t width, uint32_t height);
+bool wlr_texture_upload_dmabuf(struct wlr_texture *tex,
+ struct wl_resource *dmabuf_resource);
/**
* Copies a rectangle of pixels from a wl_shm_buffer onto the texture. The
* buffer is not accessed after this function returns. Under some circumstances,
diff --git a/include/wlr/render/egl.h b/include/wlr/render/egl.h
index 97a28016..f05a9837 100644
--- a/include/wlr/render/egl.h
+++ b/include/wlr/render/egl.h
@@ -6,6 +6,7 @@
#include <pixman.h>
#include <stdbool.h>
#include <wayland-server.h>
+#include <wlr/types/wlr_linux_dmabuf.h>
struct wlr_egl {
EGLDisplay display;
@@ -18,6 +19,8 @@ struct wlr_egl {
struct {
bool buffer_age;
bool swap_buffers_with_damage;
+ bool dmabuf_import;
+ bool dmabuf_import_modifiers;
} egl_exts;
struct wl_display *wl_display;
@@ -62,6 +65,31 @@ EGLImageKHR wlr_egl_create_image(struct wlr_egl *egl,
EGLenum target, EGLClientBuffer buffer, const EGLint *attribs);
/**
+ * Creates an egl image from the given dmabuf attributes. Check usability
+ * of the dmabuf with wlr_egl_check_import_dmabuf once first.
+ */
+EGLImageKHR wlr_egl_create_image_from_dmabuf(struct wlr_egl *egl,
+ struct wlr_dmabuf_buffer_attribs *attributes);
+
+/**
+ * Try to import the given dmabuf. On success return true false otherwise.
+ * If this succeeds the dmabuf can be used for rendering on a texture
+ */
+bool wlr_egl_check_import_dmabuf(struct wlr_egl *egl,
+ struct wlr_dmabuf_buffer *dmabuf);
+
+/**
+ * Get the available dmabuf formats
+ */
+int wlr_egl_get_dmabuf_formats(struct wlr_egl *egl, int **formats);
+
+/**
+ * Get the available dmabuf modifiers for a given format
+ */
+int wlr_egl_get_dmabuf_modifiers(struct wlr_egl *egl, int format,
+ uint64_t **modifiers);
+
+/**
* Destroys an egl image created with the given wlr_egl.
*/
bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImageKHR image);
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
index eda5af1c..2ba584d9 100644
--- a/include/wlr/render/interface.h
+++ b/include/wlr/render/interface.h
@@ -8,6 +8,7 @@
#include <wlr/render.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_output.h>
+#include <wlr/types/wlr_linux_dmabuf.h>
struct wlr_renderer_impl;
@@ -58,6 +59,8 @@ struct wlr_texture_impl {
struct wl_resource *drm_buf);
bool (*upload_eglimage)(struct wlr_texture *texture, EGLImageKHR image,
uint32_t width, uint32_t height);
+ bool (*upload_dmabuf)(struct wlr_texture *texture,
+ struct wl_resource *dmabuf_resource);
void (*get_matrix)(struct wlr_texture *state,
float (*matrix)[16], const float (*projection)[16], int x, int y);
void (*get_buffer_size)(struct wlr_texture *texture,
diff --git a/include/wlr/types/wlr_linux_dmabuf.h b/include/wlr/types/wlr_linux_dmabuf.h
new file mode 100644
index 00000000..9d71e598
--- /dev/null
+++ b/include/wlr/types/wlr_linux_dmabuf.h
@@ -0,0 +1,84 @@
+#ifndef WLR_TYPES_WLR_LINUX_DMABUF_H
+#define WLR_TYPES_WLR_LINUX_DMABUF_H
+
+#define WLR_LINUX_DMABUF_MAX_PLANES 4
+
+#include <stdint.h>
+#include <wayland-server-protocol.h>
+
+/* So we don't have to pull in linux specific drm headers */
+#ifndef DRM_FORMAT_MOD_INVALID
+#define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
+#endif
+
+struct wlr_dmabuf_buffer_attribs {
+ /* set via params_add */
+ int n_planes;
+ uint32_t offset[WLR_LINUX_DMABUF_MAX_PLANES];
+ uint32_t stride[WLR_LINUX_DMABUF_MAX_PLANES];
+ uint64_t modifier[WLR_LINUX_DMABUF_MAX_PLANES];
+ int fd[WLR_LINUX_DMABUF_MAX_PLANES];
+ /* set via params_create */
+ int32_t width;
+ int32_t height;
+ uint32_t format;
+ uint32_t flags; /* enum zlinux_buffer_params_flags */
+};
+
+struct wlr_dmabuf_buffer {
+ struct wlr_egl *egl;
+ struct wl_resource *buffer_resource;
+ struct wl_resource *params_resource;
+ struct wlr_dmabuf_buffer_attribs attributes;
+};
+
+/**
+ * Returns true if the given resource was created via the linux-dmabuf
+ * buffer protocol, false otherwise
+ */
+bool wlr_dmabuf_resource_is_buffer(struct wl_resource *buffer_resource);
+
+/**
+ * Returns the wlr_dmabuf_buffer if the given resource was created
+ * via the linux-dmabuf buffer protocol
+ */
+struct wlr_dmabuf_buffer *wlr_dmabuf_buffer_from_buffer_resource(
+ struct wl_resource *buffer_resource);
+
+/**
+ * Returns the wlr_dmabuf_buffer if the given resource was created
+ * via the linux-dmabuf params protocol
+ */
+struct wlr_dmabuf_buffer *wlr_dmabuf_buffer_from_params_resource(
+ struct wl_resource *params_resource);
+
+/**
+ * Returns true if the given dmabuf has y-axis inverted, false otherwise
+ */
+bool wlr_dmabuf_buffer_has_inverted_y(struct wlr_dmabuf_buffer *dmabuf);
+
+/* the protocol interface */
+struct wlr_linux_dmabuf {
+ struct wl_global *wl_global;
+ struct wl_listener display_destroy;
+ struct wlr_egl *egl;
+};
+
+/**
+ * Create linux-dmabuf interface
+ */
+struct wlr_linux_dmabuf *wlr_linux_dmabuf_create(struct wl_display *display,
+ struct wlr_egl *egl);
+/**
+ * Destroy the linux-dmabuf interface
+ */
+void wlr_linux_dmabuf_destroy(struct wlr_linux_dmabuf *linux_dmabuf);
+
+/**
+ * Returns the wlr_linux_dmabuf if the given resource was created
+ * via the linux_dmabuf protocol
+ */
+struct wlr_linux_dmabuf *wlr_linux_dmabuf_from_resource(
+ struct wl_resource *resource);
+
+#endif