nux-1.14.0
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00001 /* 00002 * Copyright 2010 Inalogic® Inc. 00003 * 00004 * This program is free software: you can redistribute it and/or modify it 00005 * under the terms of the GNU Lesser General Public License, as 00006 * published by the Free Software Foundation; either version 2.1 or 3.0 00007 * of the License. 00008 * 00009 * This program is distributed in the hope that it will be useful, but 00010 * WITHOUT ANY WARRANTY; without even the implied warranties of 00011 * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR 00012 * PURPOSE. See the applicable version of the GNU Lesser General Public 00013 * License for more details. 00014 * 00015 * You should have received a copy of both the GNU Lesser General Public 00016 * License along with this program. If not, see <http://www.gnu.org/licenses/> 00017 * 00018 * Authored by: Jay Taoko <jaytaoko@inalogic.com> 00019 * 00020 */ 00021 00022 00023 #ifndef IOPENGLSURFACE_H 00024 #define IOPENGLSURFACE_H 00025 00026 namespace nux 00027 { 00028 00029 class IOpenGLResource; 00030 class IOpenGLSurface: public IOpenGLResource 00031 { 00032 NUX_DECLARE_OBJECT_TYPE (IOpenGLSurface, IOpenGLResource); 00033 public: 00034 virtual int RefCount() const; 00035 00036 int LockRect ( 00037 SURFACE_LOCKED_RECT *pLockedRect, 00038 const SURFACE_RECT *pRect); 00039 int UnlockRect(); 00040 00041 BitmapFormat GetPixelFormat() const 00042 { 00043 if (_BaseTexture == 0) 00044 { 00045 nuxAssert (0); // should not happen 00046 return BITFMT_UNKNOWN; 00047 } 00048 00049 return _BaseTexture->GetPixelFormat(); 00050 } 00051 00052 int GetWidth() const 00053 { 00054 if (_BaseTexture == 0) 00055 { 00056 nuxAssert (0); // should not happen 00057 return 0; 00058 } 00059 00060 return ImageSurface::GetLevelDim (_BaseTexture->_PixelFormat, _BaseTexture->_Width, _SMipLevel); 00061 } 00062 00063 int GetHeight() const 00064 { 00065 if (_BaseTexture == 0) 00066 { 00067 nuxAssert (0); // should not happen 00068 return 0; 00069 } 00070 00071 return ImageSurface::GetLevelDim (_BaseTexture->_PixelFormat, _BaseTexture->_Height, _SMipLevel); 00072 } 00073 00074 int GetMipLevel() const 00075 { 00076 return _SMipLevel; 00077 } 00078 00079 int GetSurfaceTarget() const 00080 { 00081 return _SSurfaceTarget; 00082 } 00083 00084 int GetDesc (SURFACE_DESC *pDesc) 00085 { 00086 pDesc->Width = GetWidth(); 00087 pDesc->Height = GetHeight(); 00088 pDesc->PixelFormat = GetPixelFormat(); 00089 pDesc->Type = _ResourceType; 00090 return OGL_OK; 00091 } 00092 00094 void CopyRenderTarget (int x, int y, int width, int height); 00095 00097 void* GetSurfaceData (int &width, int &height, int &format); 00098 00099 private: 00100 virtual ~IOpenGLSurface(); 00101 00102 int InitializeLevel(); 00103 00104 // By Default, the surface refers to the face 0 of the texture and to the mip level 0 of that face. 00105 // IOpenGLSurface(IOpenGLBaseTexture* DeviceBaseTexture, GLenum OpenGLID) 00106 // : _STextureTarget(GL_TEXTURE_2D) 00107 // , _SSurfaceTarget(GL_TEXTURE_2D) 00108 // , _SMipLevel(0) 00109 // , _BaseTexture(DeviceBaseTexture) 00110 // , IOpenGLResource(RTSURFACE) 00111 // { 00112 // // IOpenGLSurface surfaces are created inside a IOpenGLTexture2D, IOpenGLCubeTexture and IOpenGLVolumeTexture. 00113 // // They reside within those classes. The reference counting starts once a call to GetSurfaceLevel, 00114 // // GetCubeMapSurface or GetVolumeLevel is made to the container object. 00115 // _RefCount = 0; 00116 // _OpenGLID = OpenGLID; 00117 // } 00118 IOpenGLSurface (IOpenGLBaseTexture *DeviceBaseTexture, GLenum OpenGLID, GLenum TextureTarget, GLenum SurfaceTarget, int MipLevel, int Slice = 0 /*for volume textures*/, NUX_FILE_LINE_PROTO) 00119 : IOpenGLResource (RTSURFACE, NUX_FILE_LINE_PARAM) 00120 , _STextureTarget (TextureTarget) 00121 , _SSurfaceTarget (SurfaceTarget) 00122 , _SMipLevel (MipLevel) 00123 , _SSlice (Slice) 00124 , _BaseTexture (DeviceBaseTexture) 00125 , _AllocatedUnpackBuffer (0xFFFFFFFF) 00126 { 00127 // IOpenGLSurface surfaces are created inside a IOpenGLTexture2D, IOpenGLCubeTexture and IOpenGLVolumeTexture. 00128 // They reside within those classes. The reference counting starts once a call to GetSurfaceLevel, 00129 // GetCubeMapSurface or GetVolumeLevel is made to the container object. 00130 _RefCount = 0; 00131 _OpenGLID = OpenGLID; 00132 _LockedRect.pBits = 0; 00133 _LockedRect.Pitch = 0; 00134 _CompressedDataSize = 0; 00135 _Initialized = 0; 00136 } 00137 00138 // _STextureTarget may be 00139 // GL_TEXTURE_2D 00140 // GL_TEXTURE_RECTANGLE_ARB 00141 // GL_TEXTURE_CUBE_MAP 00142 // GL_TEXTURE_3D 00143 GLenum _STextureTarget; 00144 00145 // _SSurfaceTarget may be 00146 // GL_TEXTURE_2D 00147 // GL_TEXTURE_3D 00148 // GL_TEXTURE_RECTANGLE_ARB 00149 // GL_TEXTURE_CUBE_MAP_POSITIVE_X 00150 // GL_TEXTURE_CUBE_MAP_NEGATIVE_X 00151 // GL_TEXTURE_CUBE_MAP_POSITIVE_Y 00152 // GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 00153 // GL_TEXTURE_CUBE_MAP_POSITIVE_Z 00154 // GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 00155 GLenum _SSurfaceTarget; 00156 int _SMipLevel; 00157 int _SSlice; // for volume texture 00158 00159 SURFACE_LOCKED_RECT _LockedRect; 00160 SURFACE_RECT _Rect; 00161 int _CompressedDataSize; 00162 00163 IOpenGLBaseTexture *_BaseTexture; 00164 bool _Initialized; 00165 00166 int _AllocatedUnpackBuffer; 00167 friend class IOpenGLTexture2D; 00168 friend class IOpenGLRectangleTexture; 00169 friend class IOpenGLCubeTexture; 00170 friend class IOpenGLVolumeTexture; 00171 friend class IOpenGLAnimatedTexture; 00172 friend class ObjectPtr<IOpenGLSurface>; 00173 }; 00174 00175 } 00176 00177 #endif // IOPENGLSURFACE_H 00178