egl: Implement EGL_KHR_context_flush_control

Reviewed-by: Nicolai Hähnle <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
Signed-off-by: Adam Jackson <[email protected]>

4 files changed, 13 insertions, 0 deletions

diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 215332f99cb..76dabba2eb5 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -494,6 +494,7 @@ _eglCreateExtensionsString(_EGLDisplay *dpy)
 
    _EGL_CHECK_EXTENSION(KHR_cl_event2);
    _EGL_CHECK_EXTENSION(KHR_config_attribs);
+   _EGL_CHECK_EXTENSION(KHR_context_flush_control);
    _EGL_CHECK_EXTENSION(KHR_create_context);
    _EGL_CHECK_EXTENSION(KHR_create_context_no_error);
    _EGL_CHECK_EXTENSION(KHR_fence_sync);
diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 8c64f9ab82e..18c1bc59acc 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -386,6 +386,15 @@ _eglParseContextAttribList(_EGLContext *ctx, _EGLDisplay *dpy,
             break;
          }
 
+      case EGL_CONTEXT_RELEASE_BEHAVIOR_KHR:
+         if (val == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR ||
+             val == EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR) {
+            ctx->ReleaseBehavior = val;
+         } else {
+            err = EGL_BAD_ATTRIBUTE;
+         }
+         break;
+
       default:
          err = EGL_BAD_ATTRIBUTE;
          break;
@@ -588,6 +597,7 @@ _eglInitContext(_EGLContext *ctx, _EGLDisplay *dpy, _EGLConfig *conf,
    ctx->Profile = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
    ctx->ResetNotificationStrategy = EGL_NO_RESET_NOTIFICATION_KHR;
    ctx->ContextPriority = EGL_CONTEXT_PRIORITY_MEDIUM_IMG;
+   ctx->ReleaseBehavior = EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR;
 
    err = _eglParseContextAttribList(ctx, dpy, attrib_list);
    if (err == EGL_SUCCESS && ctx->Config) {
diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index a7523683136..8d97ef9eab9 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -64,6 +64,7 @@ struct _egl_context
    EGLint ResetNotificationStrategy;
    EGLint ContextPriority;
    EGLBoolean NoError;
+   EGLint ReleaseBehavior;
 
    /* The real render buffer when a window surface is bound */
    EGLint WindowRenderBuffer;
diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
index 952bfe53f00..981cbf4ca06 100644
--- a/src/egl/main/egldisplay.h
+++ b/src/egl/main/egldisplay.h
@@ -112,6 +112,7 @@ struct _egl_extensions
 
    EGLBoolean KHR_cl_event2;
    EGLBoolean KHR_config_attribs;
+   EGLBoolean KHR_context_flush_control;
    EGLBoolean KHR_create_context;
    EGLBoolean KHR_fence_sync;
    EGLBoolean KHR_get_all_proc_addresses;