source: GTP/branches/IllumWPdeliver2008dec/IlluminationWP/demos/Standalone/Hierarchical Systems Demo [OpenGL]/RESOURCES/include/Cg/cgContextManager.h @ 3255

Revision 3255, 6.7 KB checked in by szirmay, 15 years ago (diff)
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1/*
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51
52/*********************************************************************NVMH2****
53File:  cgContextManager.h
54
55Copyright (C) 1999, 2000 NVIDIA Corporation
56This file is provided without support, instruction, or implied warranty of any
57kind.  NVIDIA makes no guarantee of its fitness for a particular purpose and is
58not liable under any circumstances for any damages or loss whatsoever arising
59from the use or inability to use this file or items derived from it.
60
61Comments:
62
63cgContextManager - a class for loading various cg programs,
64
65
66******************************************************************************/
67
68
69
70#ifndef __NV_CG_MANAGER_H
71#define __NV_CG_MANAGER_H
72
73#if WIN32
74
75#pragma warning (disable:4786) // identifier was truncated to '255' characters in the browser information
76
77#include <windows.h>
78#include <d3d8.h>
79#include <d3dx8.h>
80
81#include <Cg/cgTemplates.h>
82#include <Cg/cg.h>
83#include <Cg/cgProgramManager.h>
84
85
86 
87
88
89
90class cgContextManager;
91
92
93class cgContextContainer
94{
95public:
96
97
98    // retrieve the listing file for the last compile
99    const char *GetLastListing();
100
101
102    // loads and compiles the cg program
103    cgProgramContainer * LoadCGProgramFromFile(
104        const char * filename,           // filename of the Cg program
105        const char * title,               // title of the program                               
106        cgProfileType type,       // profile of the program                           
107        cgVertexDefinition * va = 0, // optionally, set streams or allow different vetex definitions
108        DWORD * outIndex = 0,
109        const char * entry = 0);
110
111    cgProgramContainer *  LoadCGProgramFromMemory(
112        const char * memory,          // memory location that contain the cg program
113        const char * title,            // name of the program
114        cgProfileType type,    // profile of the program
115        cgVertexDefinition * va = 0,   // optionally, set the streams for each vertex entry
116        DWORD * outIndex = 0,
117        const char * entry = 0);
118
119
120    // use outIndex returned from LoadCGProgramFrom to retriece the program iterator
121    cgProgramContainer * GetProgramIterator(DWORD index);
122
123
124    // program operators (for multiple programs(vertex, pixel) in one cg
125    // pass NULL to get first program
126    cgProgramIter *GetNextProgram(cgProgramIter *iter);
127
128    // get a specific program
129    cgProgramIter *ProgramByName(const char *name);
130
131
132    // get the vertexshader or pixel shader handle that is passed to
133    // SetVertexShader and SetPixelShader
134    DWORD GetShaderHandle(cgProfileType type)
135    {
136        return pm.GetShaderHandle( type);
137    }
138
139    ~cgContextContainer( );
140
141    friend class cgContextManager;
142protected:
143
144    cgContextContainer( LPDIRECT3DDEVICE8 pd3dDevice, cgContext * context);
145
146
147private:
148
149
150    cgProgramContainer * CreateProgramContainer(DWORD * outIndex = 0);
151
152    cgProgramContainer * CreateProgramContainer(
153        cgProgramIter *ProgramIter,
154        LPDIRECT3DDEVICE8 pd3dDevice,
155        DWORD * outIndex = 0);       // index of this
156
157    // loads and compiles the cg program
158    HRESULT AddProgramFromFile(const char * filename, const char * name, cgProfileType type, const char * entry = 0);
159    HRESULT AddProgramFromMemory(const char * memory, const char * name, cgProfileType type, const char * entry = 0);
160
161
162    void Free();
163    cgProgramManager pm; // manage the vertex or pixel shader that is derived from this
164    cgContext * m_Context;
165    cg_string           m_ContextDefinition;
166    LPDIRECT3DDEVICE8 m_pd3dDevice;
167
168};
169
170
171
172class cgContextManager
173{
174private:
175
176        cg_vector < cgContextContainer *>       m_ContextContainers;           
177        cg_vector < DWORD >                     m_ContextIndices;       // indirection to m_Shaders
178                                                                                        // Programs hold an index to this array for
179                                                                                        // their shaders.  The array int at that index
180                                                                                        // holds the index into the m_Shaders array.
181
182    // each context has a list of programs (up to one for each profile)
183
184
185public:
186        cgContextManager();
187        ~cgContextManager();
188
189        cgError Free();
190
191    cgContextContainer  *CreateContextContainer(LPDIRECT3DDEVICE8 pd3dDevice, DWORD * outIndex);
192
193
194
195};
196
197
198#endif // WIN32
199
200#endif
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