summaryrefslogtreecommitdiffstats
path: root/widget/android/AndroidDirectTexture.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /widget/android/AndroidDirectTexture.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'widget/android/AndroidDirectTexture.h')
-rw-r--r--widget/android/AndroidDirectTexture.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/widget/android/AndroidDirectTexture.h b/widget/android/AndroidDirectTexture.h
new file mode 100644
index 000000000..8582b8582
--- /dev/null
+++ b/widget/android/AndroidDirectTexture.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef AndroidDirectTexture_h_
+#define AndroidDirectTexture_h_
+
+#include "gfxTypes.h"
+#include "mozilla/Mutex.h"
+#include "AndroidGraphicBuffer.h"
+#include "nsRect.h"
+
+namespace mozilla {
+
+/**
+ * This is a thread safe wrapper around AndroidGraphicBuffer that handles
+ * double buffering. Each call to Bind() flips the buffer when necessary.
+ *
+ * You need to be careful when destroying an instance of this class. If either
+ * buffer is locked by the application of the driver/hardware, bad things will
+ * happen. Be sure that the OpenGL texture is no longer on the screen.
+ */
+class AndroidDirectTexture
+{
+public:
+ AndroidDirectTexture(uint32_t width, uint32_t height, uint32_t usage, gfxImageFormat format);
+ virtual ~AndroidDirectTexture();
+
+ bool Lock(uint32_t usage, unsigned char **bits);
+ bool Lock(uint32_t usage, const nsIntRect& rect, unsigned char **bits);
+ bool Unlock(bool aFlip = true);
+
+ bool Reallocate(uint32_t aWidth, uint32_t aHeight);
+ bool Reallocate(uint32_t aWidth, uint32_t aHeight, gfxImageFormat aFormat);
+
+ uint32_t Width() { return mWidth; }
+ uint32_t Height() { return mHeight; }
+
+ bool Bind();
+
+private:
+ mozilla::Mutex mLock;
+ bool mNeedFlip;
+
+ uint32_t mWidth;
+ uint32_t mHeight;
+ gfxImageFormat mFormat;
+
+ AndroidGraphicBuffer* mFrontBuffer;
+ AndroidGraphicBuffer* mBackBuffer;
+
+ AndroidGraphicBuffer* mPendingReallocBuffer;
+ void ReallocPendingBuffer();
+};
+
+} /* mozilla */
+#endif /* AndroidDirectTexture_h_ */