source: OGRE/trunk/ogrenew/RenderSystems/Direct3D9/include/OgreD3D9GpuProgram.h @ 692

Revision 692, 5.8 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

RevLine 
[692]1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25#ifndef __D3D9GpuProgram_H_
26#define __D3D9GpuProgram_H_
27
28// Precompiler options
29#include "OgreD3D9Prerequisites.h"
30#include "OgreGpuProgram.h"
31
32namespace Ogre {
33
34    /** Direct3D implementation of a few things common to low-level vertex & fragment programs. */
35    class D3D9GpuProgram : public GpuProgram
36    {
37    protected:
38        LPDIRECT3DDEVICE9 mpDevice;
39        LPD3DXBUFFER mpExternalMicrocode; // microcode from elsewhere, we do NOT delete this ourselves
40    public:
41        D3D9GpuProgram(ResourceManager* creator, const String& name, ResourceHandle handle,
42            const String& group, bool isManual, ManualResourceLoader* loader, LPDIRECT3DDEVICE9 pDev);
43       
44
45        /** Tells the program to load from some externally created microcode instead of a file or source.
46        @remarks
47            It is the callers responsibility to delete the microcode buffer.
48        */
49        void setExternalMicrocode(LPD3DXBUFFER pMicrocode) { mpExternalMicrocode = pMicrocode; }
50        /** Gets the external microcode buffer, if any. */
51        LPD3DXBUFFER getExternalMicrocode(void) { return mpExternalMicrocode; }
52    protected:
53        /** @copydoc Resource::loadImpl */
54        void loadImpl(void);
55        /** Overridden from GpuProgram */
56        void loadFromSource(void);
57        /** Internal method to load from microcode, must be overridden by subclasses. */
58        virtual void loadFromMicrocode(LPD3DXBUFFER microcode) = 0;
59
60
61    };
62
63    /** Direct3D implementation of low-level vertex programs. */
64    class D3D9GpuVertexProgram : public D3D9GpuProgram
65    {
66    protected:
67        LPDIRECT3DVERTEXSHADER9 mpVertexShader;
68    public:
69        D3D9GpuVertexProgram(ResourceManager* creator, const String& name, ResourceHandle handle,
70            const String& group, bool isManual, ManualResourceLoader* loader, LPDIRECT3DDEVICE9 pDev);
71                ~D3D9GpuVertexProgram();
72        /// Gets the vertex shader
73        LPDIRECT3DVERTEXSHADER9 getVertexShader(void) const { return mpVertexShader; }
74    protected:
75        /** @copydoc Resource::unloadImpl */
76        void unloadImpl(void);
77        void loadFromMicrocode(LPD3DXBUFFER microcode);
78    };
79
80    /** Direct3D implementation of low-level fragment programs. */
81    class D3D9GpuFragmentProgram : public D3D9GpuProgram
82    {
83    protected:
84        LPDIRECT3DPIXELSHADER9 mpPixelShader;
85    public:
86        D3D9GpuFragmentProgram(ResourceManager* creator, const String& name, ResourceHandle handle,
87            const String& group, bool isManual, ManualResourceLoader* loader, LPDIRECT3DDEVICE9 pDev);
88                ~D3D9GpuFragmentProgram();
89        /// Gets the pixel shader
90        LPDIRECT3DPIXELSHADER9 getPixelShader(void) const { return mpPixelShader; }
91    protected:
92        /** @copydoc Resource::unloadImpl */
93        void unloadImpl(void);
94        void loadFromMicrocode(LPD3DXBUFFER microcode);
95    };
96    /** Specialisation of SharedPtr to allow SharedPtr to be assigned to D3D9GpuProgramPtr
97    @note Has to be a subclass since we need operator=.
98    We could templatise this instead of repeating per Resource subclass,
99    except to do so requires a form VC6 does not support i.e.
100    ResourceSubclassPtr<T> : public SharedPtr<T>
101    */
102    class _OgreExport D3D9GpuProgramPtr : public SharedPtr<D3D9GpuProgram>
103    {
104    public:
105        D3D9GpuProgramPtr() : SharedPtr<D3D9GpuProgram>() {}
106        explicit D3D9GpuProgramPtr(D3D9GpuProgram* rep) : SharedPtr<D3D9GpuProgram>(rep) {}
107        D3D9GpuProgramPtr(const D3D9GpuProgramPtr& r) : SharedPtr<D3D9GpuProgram>(r) {}
108        D3D9GpuProgramPtr(const ResourcePtr& r) : SharedPtr<D3D9GpuProgram>()
109        {
110                        // lock & copy other mutex pointer
111                        OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
112                        OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
113            pRep = static_cast<D3D9GpuProgram*>(r.getPointer());
114            pUseCount = r.useCountPointer();
115            if (pUseCount)
116            {
117                ++(*pUseCount);
118            }
119        }
120
121        /// Operator used to convert a ResourcePtr to a D3D9GpuProgramPtr
122        D3D9GpuProgramPtr& operator=(const ResourcePtr& r)
123        {
124            if (pRep == static_cast<D3D9GpuProgram*>(r.getPointer()))
125                return *this;
126            release();
127                        // lock & copy other mutex pointer
128                        OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
129                        OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
130            pRep = static_cast<D3D9GpuProgram*>(r.getPointer());
131            pUseCount = r.useCountPointer();
132            if (pUseCount)
133            {
134                ++(*pUseCount);
135            }
136            return *this;
137        }
138    };
139
140}
141
142
143#endif
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