make sure EGL_ANDROID_swap_rectangle is actually supported before using it (42fd8050) · Commits · e / os / android_frameworks_base

libs/surfaceflinger/DisplayHardware/DisplayHardware.cpp

+11 −4

Original line number	Diff line number	Diff line
		@@ -166,10 +166,18 @@ void DisplayHardware::init(uint32_t dpy)
		}
		}

		eglQuerySurface(display, surface, EGL_WIDTH, &mWidth);
		eglQuerySurface(display, surface, EGL_HEIGHT, &mHeight);

		#ifdef EGL_ANDROID_swap_rectangle
		if (strstr(egl_extensions, "EGL_ANDROID_swap_rectangle")) {
		if (eglSetSwapRectangleANDROID(display, surface,
		0, 0, mWidth, mHeight) == EGL_TRUE) {
		// This could fail if this extension is not supported by this
		// specific surface (of config)
		mFlags \|= SWAP_RECTANGLE;
		}
		}
		// when we have the choice between UPDATE_ON_DEMAND and SWAP_RECTANGLE
		// choose UPDATE_ON_DEMAND, which is more efficient
		if (mFlags & UPDATE_ON_DEMAND)
		@@ -177,6 +185,8 @@ void DisplayHardware::init(uint32_t dpy)
		#endif


		LOGI("flags : %08x", mFlags);

		mDpiX = mNativeWindow->xdpi;
		mDpiY = mNativeWindow->ydpi;
		mRefreshRate = fbDev->fps;
		@@ -204,9 +214,6 @@ void DisplayHardware::init(uint32_t dpy)
		context = eglCreateContext(display, config, NULL, NULL);
		//checkEGLErrors("eglCreateContext");

		eglQuerySurface(display, surface, EGL_WIDTH, &mWidth);
		eglQuerySurface(display, surface, EGL_HEIGHT, &mHeight);


		/*
		* Gather OpenGL ES extensions