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73 lines
2 KiB
C
73 lines
2 KiB
C
#ifndef WLR_BACKEND_EGL_H
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#define WLR_BACKEND_EGL_H
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <stdbool.h>
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struct wlr_egl {
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EGLDisplay display;
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EGLConfig config;
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EGLContext context;
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const char *egl_exts;
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const char *gl_exts;
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struct wl_display *wl_display;
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};
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/**
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* Initializes an egl context for the given platform and remote display.
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* Will attempt to load all possibly required api functions.
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*/
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bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display);
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/**
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* Frees all related egl resources, makes the context not-current and
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* unbinds a bound wayland display.
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*/
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void wlr_egl_free(struct wlr_egl *egl);
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/**
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* Binds the given display to the egl instance.
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* This will allow clients to create egl surfaces from wayland ones and render to it.
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*/
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bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display);
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/**
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* Queries information about the given (potential egl/drm) buffer, returns
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* the information in value.
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* Refer to eglQueryWaylandBufferWL for more information about attrib and value.
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* Makes only sense when a wl_display was bound to it since otherwise there
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* cannot be any egl/drm buffers.
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* Will only work after a wlr_egl objct was initialized and if the needed egl extension
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* is present.
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*/
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bool wlr_egl_query_buffer(struct wl_resource *buf,
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EGLint attrib, EGLint *value);
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/**
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* Returns a surface for the given native window
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* The window must match the remote display the wlr_egl was created with.
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*/
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EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window);
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/**
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* Creates an egl image from the given client buffer and attributes.
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* Will only work after a wlr_egl objct was initialized and if the needed egl extension
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* is present.
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*/
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EGLImageKHR wlr_egl_create_image(EGLenum target, EGLClientBuffer buffer,
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const EGLint *attribs);
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/**
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* Destroys an egl image created with the given wlr_egl.
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*/
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bool wlr_egl_destroy_image(EGLImageKHR image);
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/**
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* Returns a string for the last error ocurred with egl.
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*/
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const char *egl_error(void);
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#endif
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