import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

widget/gonk/libdisplay/FramebufferSurface.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2007 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_SF_FRAMEBUFFER_SURFACE_H
+#define ANDROID_SF_FRAMEBUFFER_SURFACE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "DisplaySurface.h"
+
+// ---------------------------------------------------------------------------
+namespace android {
+// ---------------------------------------------------------------------------
+
+class Rect;
+class String8;
+
+// ---------------------------------------------------------------------------
+
+class FramebufferSurface : public DisplaySurface {
+public:
+    FramebufferSurface(int disp, uint32_t width, uint32_t height, uint32_t format, const sp<StreamConsumer>& sc);
+
+    // From DisplaySurface
+    virtual status_t beginFrame(bool mustRecompose);
+    virtual status_t prepareFrame(CompositionType compositionType);
+    virtual status_t compositionComplete();
+    virtual status_t advanceFrame();
+    virtual void onFrameCommitted();
+    // Cannot resize a buffers in a FramebufferSurface. Only works with virtual
+    // displays.
+    virtual void resizeBuffers(const uint32_t /*w*/, const uint32_t /*h*/) { };
+
+    // setReleaseFenceFd stores a fence file descriptor that will signal when the
+    // current buffer is no longer being read. This fence will be returned to
+    // the producer when the current buffer is released by updateTexImage().
+    // Multiple fences can be set for a given buffer; they will be merged into
+    // a single union fence. The SurfaceTexture will close the file descriptor
+    // when finished with it.
+    status_t setReleaseFenceFd(int fenceFd);
+
+    virtual int GetPrevDispAcquireFd();
+
+private:
+    virtual ~FramebufferSurface() { }; // this class cannot be overloaded
+
+#if ANDROID_VERSION >= 22
+    virtual void onFrameAvailable(const ::android::BufferItem &item);
+#else
+    virtual void onFrameAvailable();
+#endif
+    virtual void freeBufferLocked(int slotIndex);
+
+    // nextBuffer waits for and then latches the next buffer from the
+    // BufferQueue and releases the previously latched buffer to the
+    // BufferQueue.  The new buffer is returned in the 'buffer' argument.
+    status_t nextBuffer(sp<GraphicBuffer>& outBuffer, sp<Fence>& outFence);
+
+    // mDisplayType must match one of the HWC display types
+    int mDisplayType;
+
+    // mCurrentBufferIndex is the slot index of the current buffer or
+    // INVALID_BUFFER_SLOT to indicate that either there is no current buffer
+    // or the buffer is not associated with a slot.
+    int mCurrentBufferSlot;
+
+    // mCurrentBuffer is the current buffer or NULL to indicate that there is
+    // no current buffer.
+    sp<GraphicBuffer> mCurrentBuffer;
+
+    android::sp<android::Fence> mPrevFBAcquireFence;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
+