Move virtual camera service to frameworks/av/services
Bug: 311647154
Bug: 301023410
Test: atest virtual_camera_tests
Test: build & flash & adb shell cmd virtual_camera help
Change-Id: I6d43a2b70f454c9c01ec2abcae9f138cd78c6a85
diff --git a/services/camera/virtualcamera/util/EglFramebuffer.h b/services/camera/virtualcamera/util/EglFramebuffer.h
new file mode 100644
index 0000000..35f85e2
--- /dev/null
+++ b/services/camera/virtualcamera/util/EglFramebuffer.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_COMPANION_VIRTUALCAMERA_EGLFRAMEBUFFER_H
+#define ANDROID_COMPANION_VIRTUALCAMERA_EGLFRAMEBUFFER_H
+
+#define EGL_EGLEXT_PROTOTYPES
+#define GL_GLEXT_PROTOTYPES
+
+#include <memory>
+
+#include "EGL/egl.h"
+#include "EGL/eglext.h"
+#include "GLES/gl.h"
+
+namespace android {
+namespace companion {
+namespace virtualcamera {
+
+// Encapsulates EGL Framebuffer backed by AHardwareBuffer instance.
+//
+// Note that the framebuffer is tied to EGLDisplay connection.
+class EglFrameBuffer {
+ public:
+ EglFrameBuffer(EGLDisplay display, std::shared_ptr<AHardwareBuffer> hwBuffer);
+ virtual ~EglFrameBuffer();
+
+ // Prepare for rendering into the framebuffer.
+ bool beforeDraw();
+
+ // Finishes rendering into the framebuffer.
+ bool afterDraw();
+
+ // Return width of framebuffer (in pixels).
+ int getWidth() const;
+
+ // Return height of framebuffer (in pixels).
+ int getHeight() const;
+
+ private:
+ // Keeping shared_ptr to hardware buffer instance here prevents it from being
+ // freed while tied to EGL framebufer / EGL texture.
+ std::shared_ptr<AHardwareBuffer> mHardwareBuffer;
+ EGLDisplay mEglDisplay;
+ EGLImageKHR mEglImageKhr{EGL_NO_IMAGE_KHR};
+ GLuint mTextureId;
+ GLuint mFramebufferId;
+
+ int mWidth;
+ int mHeight;
+};
+
+} // namespace virtualcamera
+} // namespace companion
+} // namespace android
+
+#endif // ANDROID_COMPANION_VIRTUALCAMERA_EGLFRAMEBUFFER_H