diff options
| -rw-r--r-- | include/wlr/render/egl.h | 19 | ||||
| -rw-r--r-- | render/egl.c | 12 |
2 files changed, 31 insertions, 0 deletions
diff --git a/include/wlr/render/egl.h b/include/wlr/render/egl.h index 98435d91..d46d95af 100644 --- a/include/wlr/render/egl.h +++ b/include/wlr/render/egl.h @@ -30,6 +30,13 @@ #include <wlr/render/dmabuf.h> #include <wlr/render/drm_format_set.h> +struct wlr_egl_context { + EGLDisplay display; + EGLContext context; + EGLSurface draw_surface; + EGLSurface read_surface; +}; + struct wlr_egl { EGLenum platform; EGLDisplay display; @@ -137,6 +144,18 @@ bool wlr_egl_unset_current(struct wlr_egl *egl); bool wlr_egl_is_current(struct wlr_egl *egl); +/** + * Save the current EGL context to the structure provided in the argument. + * + * This includes display, context, draw surface and read surface. + */ +void wlr_egl_save_context(struct wlr_egl_context *context); + +/** + * Restore EGL context that was previously saved using wlr_egl_save_current(). + */ +bool wlr_egl_restore_context(struct wlr_egl_context *context); + bool wlr_egl_swap_buffers(struct wlr_egl *egl, EGLSurface surface, pixman_region32_t *damage); diff --git a/render/egl.c b/render/egl.c index a2f7bd9a..6df5dac8 100644 --- a/render/egl.c +++ b/render/egl.c @@ -411,6 +411,18 @@ bool wlr_egl_is_current(struct wlr_egl *egl) { return eglGetCurrentContext() == egl->context; } +void wlr_egl_save_context(struct wlr_egl_context *context) { + context->display = eglGetCurrentDisplay(); + context->context = eglGetCurrentContext(); + context->draw_surface = eglGetCurrentSurface(EGL_DRAW); + context->read_surface = eglGetCurrentSurface(EGL_READ); +} + +bool wlr_egl_restore_context(struct wlr_egl_context *context) { + return eglMakeCurrent(context->display, context->draw_surface, + context->read_surface, context->context); +} + bool wlr_egl_swap_buffers(struct wlr_egl *egl, EGLSurface surface, pixman_region32_t *damage) { // Never block when swapping buffers on Wayland |