source: OGRE/trunk/ogrenew/Samples/DeferredShading/src/MaterialGenerator.cpp @ 692

Revision 692, 3.8 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

Line 
1/******************************************************************************
2Copyright (c) W.J. van der Laan
3
4Permission is hereby granted, free of charge, to any person obtaining a copy of
5this software  and associated documentation files (the "Software"), to deal in
6the Software without restriction, including without limitation the rights to use,
7copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
8Software, and to permit persons to whom the Software is furnished to do so, subject
9to the following conditions:
10
11The above copyright notice and this permission notice shall be included in all copies
12or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
15INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
16PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
17HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
18OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE
19SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20******************************************************************************/
21
22#include "MaterialGenerator.h"
23
24#include "OgreStringConverter.h"
25#include "OgreException.h"
26
27#include "OgrePass.h"
28#include "OgreTechnique.h"
29
30#include "OgreHighLevelGpuProgram.h"
31#include "OgreHighLevelGpuProgramManager.h"
32
33using namespace Ogre;
34
35MaterialGenerator::MaterialGenerator():
36        vsMask(0), fsMask(0), matMask(0), mImpl(0)
37{
38}
39MaterialGenerator::~MaterialGenerator()
40{
41        delete mImpl;
42}
43
44const Ogre::MaterialPtr &MaterialGenerator::getMaterial(Perm permutation)
45{
46        /// Check input validity
47        size_t totalBits = bitNames.size();
48        size_t totalPerms = 1<<totalBits;
49        assert(permutation < totalPerms);
50
51        /// Check if material/shader permutation already was generated
52        MaterialMap::iterator i = mMaterials.find(permutation);
53        if(i != mMaterials.end())
54        {
55                return i->second;
56        }
57        else
58        {
59                /// Create it
60                Ogre::MaterialPtr templ = getTemplateMaterial(permutation & matMask);
61                Ogre::GpuProgramPtr vs = getVertexShader(permutation & vsMask);
62                Ogre::GpuProgramPtr fs = getFragmentShader(permutation & fsMask);
63               
64                /// Create material name
65                String name=materialBaseName;
66                for(size_t bit=0; bit<totalBits; ++bit)
67                        if(permutation & (1<<bit))
68                                name += bitNames[bit];
69
70                std::cerr << name << " " << vs->getName() << " " << fs->getName() << std::endl;
71                /// Create material from template, and set shaders
72                MaterialPtr mat = templ->clone(name);
73                Technique *tech = mat->getTechnique(0);
74                Pass *pass = tech->getPass(0);
75                pass->setFragmentProgram(fs->getName());
76                pass->setVertexProgram(vs->getName());
77
78                /// And store it
79                mMaterials[permutation] = mat;
80                return mMaterials[permutation];
81        }
82}
83
84const Ogre::GpuProgramPtr &MaterialGenerator::getVertexShader(Perm permutation)
85{
86        ProgramMap::iterator i = mVs.find(permutation);
87        if(i != mVs.end())
88        {
89                return i->second;
90        }
91        else
92        {
93                /// Create it
94                mVs[permutation] = mImpl->generateVertexShader(permutation);
95                return mVs[permutation];
96        }
97}
98
99const Ogre::GpuProgramPtr &MaterialGenerator::getFragmentShader(Perm permutation)
100{
101        ProgramMap::iterator i = mFs.find(permutation);
102        if(i != mFs.end())
103        {
104                return i->second;
105        }
106        else
107        {
108                /// Create it
109                mFs[permutation] = mImpl->generateFragmentShader(permutation);
110                return mFs[permutation];
111        }
112}
113
114const Ogre::MaterialPtr &MaterialGenerator::getTemplateMaterial(Perm permutation)
115{
116        MaterialMap::iterator i = mTemplateMat.find(permutation);
117        if(i != mTemplateMat.end())
118        {
119                return i->second;
120        }
121        else
122        {
123                /// Create it
124                mTemplateMat[permutation] = mImpl->generateTemplateMaterial(permutation);
125                return mTemplateMat[permutation];
126        }
127}
128
129MaterialGenerator::Impl::~Impl()
130{
131}
132
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