Merge "Check GL extension is supported before using it in glwallpaper" (1f5ca753) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/glwallpaper/EglHelper.java

+25 −2

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import static android.opengl.EGL14.EGL_CONFIG_CAVEAT;
		import static android.opengl.EGL14.EGL_CONTEXT_CLIENT_VERSION;
		import static android.opengl.EGL14.EGL_DEFAULT_DISPLAY;
		import static android.opengl.EGL14.EGL_DEPTH_SIZE;
		import static android.opengl.EGL14.EGL_EXTENSIONS;
		import static android.opengl.EGL14.EGL_GREEN_SIZE;
		import static android.opengl.EGL14.EGL_NONE;
		import static android.opengl.EGL14.EGL_NO_CONTEXT;
		@@ -41,6 +42,7 @@ import static android.opengl.EGL14.eglGetDisplay;
		import static android.opengl.EGL14.eglGetError;
		import static android.opengl.EGL14.eglInitialize;
		import static android.opengl.EGL14.eglMakeCurrent;
		import static android.opengl.EGL14.eglQueryString;
		import static android.opengl.EGL14.eglSwapBuffers;
		import static android.opengl.EGL14.eglTerminate;

		@@ -63,6 +65,7 @@ public class EglHelper {
		// Below two constants make drawing at low priority, so other things can preempt our drawing.
		private static final int EGL_CONTEXT_PRIORITY_LEVEL_IMG = 0x3100;
		private static final int EGL_CONTEXT_PRIORITY_LOW_IMG = 0x3103;
		private static final String EGL_IMG_CONTEXT_PRIORITY = "EGL_IMG_context_priority";

		private EGLDisplay mEglDisplay;
		private EGLConfig mEglConfig;
		@@ -70,6 +73,7 @@ public class EglHelper {
		private EGLSurface mEglSurface;
		private final int[] mEglVersion = new int[2];
		private boolean mEglReady;
		private boolean mContextPrioritySupported;

		/**
		* Initialize EGL and prepare EglSurface.
		@@ -105,10 +109,22 @@ public class EglHelper {
		return false;
		}

		mContextPrioritySupported = isContextPrioritySuppported();

		mEglReady = true;
		return true;
		}

		private boolean isContextPrioritySuppported() {
		String[] extensions = eglQueryString(mEglDisplay, EGL_EXTENSIONS).split(" ");
		for (String extension : extensions) {
		if (extension.equals(EGL_IMG_CONTEXT_PRIORITY)) {
		return true;
		}
		}
		return false;
		}

		private EGLConfig chooseEglConfig() {
		int[] configsCount = new int[1];
		EGLConfig[] configs = new EGLConfig[1];
		@@ -184,8 +200,15 @@ public class EglHelper {
		* @return true if EglContext is ready.
		*/
		public boolean createEglContext() {
		int[] attrib_list = new int[] {EGL_CONTEXT_CLIENT_VERSION, 2,
		EGL_CONTEXT_PRIORITY_LEVEL_IMG, EGL_CONTEXT_PRIORITY_LOW_IMG, EGL_NONE};
		int[] attrib_list = new int[5];
		int idx = 0;
		attrib_list[idx++] = EGL_CONTEXT_CLIENT_VERSION;
		attrib_list[idx++] = 2;
		if (mContextPrioritySupported) {
		attrib_list[idx++] = EGL_CONTEXT_PRIORITY_LEVEL_IMG;
		attrib_list[idx++] = EGL_CONTEXT_PRIORITY_LOW_IMG;
		}
		attrib_list[idx++] = EGL_NONE;
		mEglContext = eglCreateContext(mEglDisplay, mEglConfig, EGL_NO_CONTEXT, attrib_list, 0);
		if (mEglContext == EGL_NO_CONTEXT) {
		Log.w(TAG, "eglCreateContext failed: " + GLUtils.getEGLErrorString(eglGetError()));