From 67369173aaafd763a6369a84917ae457c7095a72 Mon Sep 17 00:00:00 2001 From: nyorain Date: Wed, 9 Aug 2017 21:25:34 +0200 Subject: Implement drm (egl) buffer attaching --- include/backend/egl.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-) (limited to 'include/backend') 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 +#include #include 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 -- cgit v1.2.3