1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4     (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
6 
7 Copyright (c) 2000-2014 Torus Knot Software Ltd
8 
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
11 in the Software without restriction, including without limitation the rights
12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 copies of the Software, and to permit persons to whom the Software is
14 furnished to do so, subject to the following conditions:
15 
16 The above copyright notice and this permission notice shall be included in
17 all copies or substantial portions of the Software.
18 
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 THE SOFTWARE.
26 -----------------------------------------------------------------------------
27 */
28 #ifndef __GLES2HARDWAREUNIFORMBUFFER_H__
29 #define __GLES2HARDWAREUNIFORMBUFFER_H__
30 
31 #include "OgreGLES2Prerequisites.h"
32 #include "OgreHardwareUniformBuffer.h"
33 #include "OgreGLES2HardwareBuffer.h"
34 
35 namespace Ogre {
36 
37     /// Specialisation of HardwareUniformBuffer for OpenGL
38     class _OgreGLES2Export GLES2HardwareUniformBuffer : public HardwareUniformBuffer
39     {
40         private:
41             GLES2HardwareBuffer mBuffer;
42             GLint mBinding;
43 
44         protected:
lockImpl(size_t offset,size_t length,LockOptions options)45             void* lockImpl(size_t offset, size_t length, LockOptions options) {
46                 return mBuffer.lockImpl(offset, length, options);
47             }
unlockImpl()48             void unlockImpl() {
49                 mBuffer.unlockImpl();
50             }
51 
52         public:
53             GLES2HardwareUniformBuffer(HardwareBufferManagerBase* mgr, size_t bufferSize, HardwareBuffer::Usage usage,
54                                          bool useShadowBuffer, const String& name);
55 
56             /** See HardwareBuffer. */
57             void readData(size_t offset, size_t length, void* pDest);
58 
59             /** See HardwareBuffer. */
60             void writeData(size_t offset, size_t length,
61                            const void* pSource, bool discardWholeBuffer = false);
62 
63             /** See HardwareBuffer. */
64             void copyData(HardwareBuffer& srcBuffer, size_t srcOffset,
65                           size_t dstOffset, size_t length, bool discardWholeBuffer = false);
66 
getGLBufferId(void)67             GLuint getGLBufferId(void) const { return mBuffer.getGLBufferId(); }
68             void setGLBufferBinding(GLint binding);
getGLBufferBinding(void)69             GLint getGLBufferBinding(void) const { return mBinding; }
70     };
71 }
72 #endif // __GLES2HARDWAREUNIFORMBUFFER_H__
73