TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / src / anbox / graphics / emugl / TextureResize.h

diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/emugl/TextureResize.h b/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/emugl/TextureResize.h
new file mode 100644 (file)
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+++ b/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/emugl/TextureResize.h
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+/*
+* Copyright (C) 2015 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 _LIBRENDER_TEXTURERESIZE_H
+#define _LIBRENDER_TEXTURERESIZE_H
+
+#include <GLES2/gl2.h>
+
+class TextureResize {
+ public:
+  TextureResize(GLuint width, GLuint height);
+  ~TextureResize();
+
+  // Scales the given texture for the current viewport and returns the scaled
+  // texture. May return the input if no scaling is required.
+  GLuint update(GLuint texture);
+
+  struct Framebuffer {
+    GLuint texture = 0;
+    GLuint framebuffer = 0;
+    GLuint program = 0;
+    GLuint aPosition = 0;
+    GLuint uTexture = 0;
+  };
+
+ private:
+  void setupFramebuffers(unsigned int factor);
+  void resize(GLuint texture);
+
+ private:
+  GLuint mWidth;
+  GLuint mHeight;
+  unsigned int mFactor;
+  Framebuffer mFBWidth;
+  Framebuffer mFBHeight;
+  GLuint mVertexBuffer;
+};
+
+#endif