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authornyorain <nyorain@gmail.com>2017-08-09 21:25:34 +0200
committernyorain <nyorain@gmail.com>2017-08-10 10:59:58 +0200
commit67369173aaafd763a6369a84917ae457c7095a72 (patch)
treec42bbcebd5b1e972c422386ce46f353c2f3a31ca /include
parent750d0ad4583732ee24c998f46a62fc684f86bc48 (diff)
Implement drm (egl) buffer attaching
Diffstat (limited to 'include')
-rw-r--r--include/backend/egl.h57
-rw-r--r--include/render/gles2.h8
-rw-r--r--include/wlr/render.h13
-rw-r--r--include/wlr/render/gles2.h1
-rw-r--r--include/wlr/render/interface.h3
5 files changed, 78 insertions, 4 deletions
diff --git a/include/backend/egl.h b/include/backend/egl.h
index 0422a52b..b649c55b 100644
--- a/include/backend/egl.h
+++ b/include/backend/egl.h
@@ -2,17 +2,72 @@
#define WLR_BACKEND_EGL_H
#include <EGL/egl.h>
+#include <EGL/eglext.h>
#include <stdbool.h>
struct wlr_egl {
EGLDisplay display;
EGLConfig config;
EGLContext context;
+
+ const char *egl_exts;
+ const char *gl_exts;
+
+ struct wl_display *wl_display;
};
-const char *egl_error(void);
+/**
+ * Initializes an egl context for the given platform and remote display.
+ * Will attempt to load all possibly required api functions.
+ */
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display);
+
+/**
+ * Frees all related egl resources, makes the context not-current and
+ * unbinds a bound wayland display.
+ */
void wlr_egl_free(struct wlr_egl *egl);
+
+/**
+ * Binds the given display to the egl instance.
+ * This will allow clients to create egl surfaces from wayland ones and render to it.
+ */
+bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display);
+
+/**
+ * Queries information about the given (potential egl/drm) buffer, returns
+ * the information in value.
+ * Refer to eglQueryWaylandBufferWL for more information about attrib and value.
+ * Makes only sense when a wl_display was bound to it since otherwise there
+ * cannot be any egl/drm buffers.
+ * Will only work after a wlr_egl objct was initialized and if the needed egl extension
+ * is present.
+ */
+bool wlr_egl_query_buffer(struct wl_resource *buf,
+ EGLint attrib, EGLint *value);
+
+/**
+ * Returns a surface for the given native window
+ * The window must match the remote display the wlr_egl was created with.
+ */
EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window);
+/**
+ * Creates an egl image from the given client buffer and attributes.
+ * Will only work after a wlr_egl objct was initialized and if the needed egl extension
+ * is present.
+ */
+EGLImageKHR wlr_egl_create_image(EGLenum target, EGLClientBuffer buffer,
+ const EGLint *attribs);
+
+/**
+ * Destroys an egl image created with the given wlr_egl.
+ */
+bool wlr_egl_destroy_image(EGLImageKHR image);
+
+/**
+ * Returns a string for the last error ocurred with egl.
+ */
+const char *egl_error(void);
+
#endif
diff --git a/include/render/gles2.h b/include/render/gles2.h
index 41af0593..7ad4ad2e 100644
--- a/include/render/gles2.h
+++ b/include/render/gles2.h
@@ -4,9 +4,14 @@
#include <string.h>
#include <stdbool.h>
#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
#include <wlr/render.h>
#include <wlr/util/log.h>
+extern PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
+
struct pixel_format {
uint32_t wl_format;
GLint gl_format, gl_type;
@@ -18,6 +23,7 @@ struct wlr_texture_state {
struct wlr_texture *wlr_texture;
GLuint tex_id;
const struct pixel_format *pixel_format;
+ EGLImageKHR image;
};
struct shaders {
@@ -25,6 +31,7 @@ struct shaders {
GLuint rgba, rgbx;
GLuint quad;
GLuint ellipse;
+ Gluint external;
};
extern struct shaders shaders;
@@ -39,6 +46,7 @@ extern const GLchar ellipse_fragment_src[];
extern const GLchar vertex_src[];
extern const GLchar fragment_src_rgba[];
extern const GLchar fragment_src_rgbx[];
+extern const GLchar fragment_src_external[];
bool _gles2_flush_errors(const char *file, int line);
#define gles2_flush_errors(...) \
diff --git a/include/wlr/render.h b/include/wlr/render.h
index 61169333..47e2ff57 100644
--- a/include/wlr/render.h
+++ b/include/wlr/render.h
@@ -65,7 +65,7 @@ struct wlr_texture {
* Copies pixels to this texture. The buffer is not accessed after this function
* returns.
*/
-bool wlr_texture_upload_pixels(struct wlr_texture *surf,
+bool wlr_texture_upload_pixels(struct wlr_texture *tex,
enum wl_shm_format format, int stride, int width, int height,
const unsigned char *pixels);
/**
@@ -80,8 +80,17 @@ bool wlr_texture_update_pixels(struct wlr_texture *surf,
* Copies pixels from a wl_shm_buffer into this texture. The buffer is not
* accessed after this function returns.
*/
-bool wlr_texture_upload_shm(struct wlr_texture *surf, uint32_t format,
+bool wlr_texture_upload_shm(struct wlr_texture *tex, uint32_t format,
struct wl_shm_buffer *shm);
+
+/**
+ * Attaches the contents from the given wl_drm wl_buffer resource onto the
+ * texture. The wl_resource is not used after this call.
+ * Will fail (return false) if the given resource is no drm buffer.
+ */
+ bool wlr_texture_upload_drm(struct wlr_texture *tex,
+ struct wl_resource *drm_buffer);
+
/**
* 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/gles2.h b/include/wlr/render/gles2.h
index a779ffff..43d4719e 100644
--- a/include/wlr/render/gles2.h
+++ b/include/wlr/render/gles2.h
@@ -2,6 +2,7 @@
#define _WLR_GLES2_RENDERER_H
#include <wlr/render.h>
+struct wlr_egl;
struct wlr_renderer *wlr_gles2_renderer_init();
#endif
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
index be9ffe7a..4a4b22e2 100644
--- a/include/wlr/render/interface.h
+++ b/include/wlr/render/interface.h
@@ -42,7 +42,8 @@ struct wlr_texture_impl {
struct wl_shm_buffer *shm);
bool (*update_shm)(struct wlr_texture_state *surf, uint32_t format,
int x, int y, int width, int height, struct wl_shm_buffer *shm);
- // TODO: egl
+ bool (*upload_drm)(struct wlr_texture_state *state,
+ struct wl_resource *drm_buf);
void (*get_matrix)(struct wlr_texture_state *state,
float (*matrix)[16], const float (*projection)[16], int x, int y);
void (*bind)(struct wlr_texture_state *state);