[3030] | 1 | #include "ShaderProgram.h"
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| 2 | #include "Matrix4x4.h"
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| 3 |
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| 4 |
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| 5 | using namespace std;
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| 6 |
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| 7 | namespace CHCDemoEngine
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| 8 | {
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| 9 |
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| 10 |
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[3033] | 11 | GPUProgramParameters::GPUProgramParameters(ShaderProgram *p)
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| 12 | : mProgram(p)
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| 13 | {
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| 14 | }
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| 15 |
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[3036] | 16 |
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| 17 | void GPUProgramParameters::Reset()
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| 18 | {
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| 19 | mFloats.clear();
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| 20 | mTextures.clear();
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| 21 | mMatrices.clear();
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| 22 | mArrays.clear();
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| 23 | }
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| 24 |
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| 25 |
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[3033] | 26 | void GPUProgramParameters::SetValue1f(int idx, float value)
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| 27 | {
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[3036] | 28 | if (mFloats.size() < idx + 1)
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| 29 | mFloats.resize(idx + 1);
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| 30 |
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| 31 | mFloats[idx] = FloatParam(&value, 1);
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[3033] | 32 | }
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| 33 |
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| 34 |
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| 35 | void GPUProgramParameters::SetValue2f(int idx, float val1, float val2)
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| 36 | {
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[3036] | 37 | if (mFloats.size() < idx + 1)
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| 38 | mFloats.resize(idx + 1);
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| 39 |
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| 40 | float vals[] = {val1, val2};
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| 41 |
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| 42 | mFloats[idx] = FloatParam(vals, 2);
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[3033] | 43 | }
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| 44 |
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| 45 |
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[3036] | 46 | void GPUProgramParameters::SetValue3f(int idx, float val1, float val2, float val3)
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[3033] | 47 | {
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[3036] | 48 | if (mFloats.size() < idx + 1)
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| 49 | mFloats.resize(idx + 1);
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| 50 |
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| 51 | float vals[] = {val1, val2, val3};
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| 52 |
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| 53 | mFloats[idx] = FloatParam(vals, 3);
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[3033] | 54 | }
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| 55 |
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| 56 |
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| 57 | void GPUProgramParameters::SetArray1f(int idx, float *vals, int numElements)
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| 58 | {
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[3036] | 59 | if (mArrays.size() < idx + 1)
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| 60 | mArrays.resize(idx + 1);
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| 61 |
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| 62 | mArrays[idx] = ArrayParam(vals, 1, numElements);
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[3033] | 63 | }
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| 64 |
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| 65 |
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| 66 | void GPUProgramParameters::SetArray2f(int idx, float *vals, int numElements)
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| 67 | {
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[3036] | 68 | if (mArrays.size() < idx + 1)
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| 69 | mArrays.resize(idx + 1);
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| 70 |
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| 71 | mArrays[idx] = ArrayParam(vals, 2, numElements);
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[3033] | 72 | }
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| 73 |
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| 74 |
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| 75 | void GPUProgramParameters::SetArray3f(int idx, float *vals, int numElements)
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| 76 | {
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[3036] | 77 | if (mArrays.size() < idx + 1)
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| 78 | mArrays.resize(idx + 1);
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| 79 |
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| 80 | mArrays[idx] = ArrayParam(vals, 3, numElements);
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[3033] | 81 | }
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| 82 |
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| 83 |
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| 84 | void GPUProgramParameters::SetTexture(int idx, unsigned int tex)
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| 85 | {
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[3036] | 86 | if (mTextures.size() < idx + 1)
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| 87 | mTextures.resize(idx + 1);
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| 88 |
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| 89 | mTextures[idx] = IntParam(tex);
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[3033] | 90 | }
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| 91 |
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| 92 |
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| 93 | void GPUProgramParameters::SetMatrix(int idx, Matrix4x4 *mat)
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| 94 | {
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[3036] | 95 | if (mMatrices.size() < idx + 1)
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| 96 | mMatrices.resize(idx + 1);
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| 97 |
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| 98 | mMatrices[idx] = MatrixParam(mat);
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[3033] | 99 | }
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| 100 |
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| 101 |
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| 102 | void GPUProgramParameters::SetValue1f(const string &name, float val)
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| 103 | {
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[3034] | 104 | SetValue1f(mProgram->GetParamIdxByName(name), val);
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[3033] | 105 | }
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| 106 |
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| 107 |
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[3034] | 108 | void GPUProgramParameters::SetValue2f(const string &name, float val1, float val2)
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[3033] | 109 | {
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[3034] | 110 | SetValue2f(mProgram->GetParamIdxByName(name), val1, val2);
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[3033] | 111 | }
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| 112 |
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| 113 |
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| 114 | void GPUProgramParameters::SetValue3f(const string &name, float val1, float val2, float val3)
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| 115 | {
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[3034] | 116 | SetValue3f(mProgram->GetParamIdxByName(name), val1, val2, val3);
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[3033] | 117 | }
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| 118 |
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| 119 |
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| 120 | void GPUProgramParameters::SetArray1f(const string &name, float *vals, int numElements)
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| 121 | {
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[3034] | 122 | SetArray1f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 123 | }
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| 124 |
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| 125 |
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[3034] | 126 | void GPUProgramParameters::SetArray2f(const string &name, float *vals, int numElements)
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[3033] | 127 | {
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[3034] | 128 | SetArray2f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 129 | }
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| 130 |
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| 131 |
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| 132 | void GPUProgramParameters::SetArray3f(const string &name, float *vals, int numElements)
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| 133 | {
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[3034] | 134 | SetArray3f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 135 | }
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| 136 |
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| 137 |
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| 138 | void GPUProgramParameters::SetMatrix(const string &name, Matrix4x4 *mat)
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| 139 | {
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[3034] | 140 | SetMatrix(mProgram->GetParamIdxByName(name), mat);
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[3033] | 141 | }
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| 142 |
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| 143 |
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| 144 | void GPUProgramParameters::SetTexture(const string &name, unsigned int tex)
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| 145 | {
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[3034] | 146 | SetTexture(mProgram->GetParamIdxByName(name), tex);
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[3033] | 147 | }
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| 148 |
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| 149 |
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[3034] | 150 | void GPUProgramParameters::UpdateParameters()
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| 151 | {
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[3036] | 152 | for (int i = 0; i < (int)mFloats.size(); ++ i)
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[3034] | 153 | {
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| 154 | const FloatParam &p = mFloats[i];
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| 155 |
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[3036] | 156 | if (!p.mValid) continue;
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| 157 |
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[3034] | 158 | switch (p.mNumComponents)
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| 159 | {
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| 160 | case 1:
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[3036] | 161 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 162 | break;
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| 163 | case 2:
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[3036] | 164 | mProgram->SetValue2f(i, p.mValues[0], p.mValues[1]);
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[3034] | 165 | break;
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| 166 | case 3:
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[3036] | 167 | mProgram->SetValue3f(i, p.mValues[0], p.mValues[1], p.mValues[2]);
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[3034] | 168 | break;
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| 169 | default:
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[3036] | 170 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 171 | }
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| 172 | }
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| 173 |
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[3036] | 174 | for (int i = 0; i < (int)mTextures.size(); ++ i)
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[3034] | 175 | {
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| 176 | const IntParam &p = mTextures[i];
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[3036] | 177 |
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| 178 | if (p.mValid)
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| 179 | mProgram->SetTexture(i, p.mValue);
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[3034] | 180 | }
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| 181 |
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[3036] | 182 | for (int i = 0; i < (int)mMatrices.size(); ++ i)
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[3034] | 183 | {
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| 184 | const MatrixParam &p = mMatrices[i];
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[3036] | 185 |
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| 186 | if (p.mValid)
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| 187 | mProgram->SetMatrix(i, *p.mValue);
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[3034] | 188 | }
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[3036] | 189 |
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| 190 | for (int i = 0; i < (int)mArrays.size(); ++ i)
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| 191 | {
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| 192 | const ArrayParam &p = mArrays[i];
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| 193 |
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| 194 | if (!p.mValid) continue;
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| 195 |
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| 196 | switch (p.mNumComponents)
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| 197 | {
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| 198 | case 1:
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| 199 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 200 | break;
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| 201 | case 2:
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| 202 | mProgram->SetArray2f(i, p.mValues, p.mNumEntries);
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| 203 | break;
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| 204 | case 3:
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| 205 | mProgram->SetArray3f(i, p.mValues, p.mNumEntries);
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| 206 | break;
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| 207 | default:
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| 208 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 209 | }
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| 210 | }
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[3034] | 211 | }
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| 212 |
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| 213 |
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| 214 |
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| 215 | /********************************************************/
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| 216 | /* ShaderProgram implementation */
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| 217 | /********************************************************/
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| 218 |
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| 219 |
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[3030] | 220 | ShaderProgram::ShaderProgram(CGcontext context,
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| 221 | const std::string &filename,
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| 222 | CGprofile profile,
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| 223 | const std::string &functionName)
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| 224 | {
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| 225 | mProgram = cgCreateProgramFromFile(context,
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| 226 | CG_SOURCE,
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| 227 | filename.c_str(),
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| 228 | profile,
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| 229 | functionName.c_str(),
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| 230 | NULL);
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| 231 |
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| 232 | if (mProgram) cgGLLoadProgram(mProgram);
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[3033] | 233 |
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[3034] | 234 | const int maxParams = 64;
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| 235 | mParameters.resize(maxParams);
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[3033] | 236 |
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[3034] | 237 | for (int i = 0; i < maxParams; ++ i)
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[3033] | 238 | {
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| 239 | mParameters[i] = NULL;
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| 240 | }
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[3030] | 241 | }
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| 242 |
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| 243 |
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[3033] | 244 | void ShaderProgram::Bind()
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| 245 | {
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| 246 | cgGLBindProgram(mProgram);
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| 247 |
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| 248 | // enable all texture parameters
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| 249 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 250 |
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| 251 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 252 | cgGLEnableTextureParameter(*it);
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| 253 | }
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| 254 |
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| 255 |
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| 256 | /*void ShaderProgram::Release()
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| 257 | {
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| 258 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 259 |
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| 260 | // disable all texture parameters
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| 261 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 262 | cgGLDisableTextureParameter(*it);
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| 263 | }*/
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| 264 |
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| 265 |
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| 266 | CGparameter ShaderProgram::AddParameter(const string &name, int idx)
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| 267 | {
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| 268 | CGparameter p = GetOrCreateParameter(name);
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| 269 |
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[3034] | 270 | mParamHash[name] = idx;
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[3033] | 271 | mParameters[idx] = p;
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[3034] | 272 |
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[3033] | 273 | return p;
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| 274 | }
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| 275 |
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| 276 |
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[3030] | 277 | CGparameter ShaderProgram::GetOrCreateParameter(const string &name)
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| 278 | {
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| 279 | CGparameter p;
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| 280 | CGParameterMap::const_iterator it = mParamHash.find(name);
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| 281 |
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| 282 | if (it == mParamHash.end())
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| 283 | {
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| 284 | p = cgGetNamedParameter(mProgram, name.c_str());
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| 285 | }
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| 286 | else
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| 287 | {
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[3033] | 288 | p = mParameters[(*it).second];
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[3030] | 289 | }
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| 290 |
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| 291 | //cout << "name: " << name << " " << p << " " << mProgram << endl;
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| 292 | return p;
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| 293 | }
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| 294 |
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| 295 |
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[3033] | 296 | CGparameter ShaderProgram::GetParameter(int idx) const
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[3030] | 297 | {
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[3034] | 298 | return mParameters[idx];
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[3030] | 299 | }
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| 300 |
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| 301 |
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[3033] | 302 | void ShaderProgram::SetValue1f(int idx, float val)
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[3030] | 303 | {
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[3033] | 304 | cgGLSetParameter1f(GetParameter(idx), val);
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[3030] | 305 | }
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| 306 |
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| 307 |
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[3033] | 308 | void ShaderProgram::SetValue2f(int idx, float val1, float val2)
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[3030] | 309 | {
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[3033] | 310 | cgGLSetParameter2f(GetParameter(idx), val1, val2);
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[3030] | 311 | }
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| 312 |
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| 313 |
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[3033] | 314 | void ShaderProgram::SetValue3f(int idx, float val1, float val2, float val3)
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[3030] | 315 | {
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[3033] | 316 | cgGLSetParameter3f(GetParameter(idx), val1, val2, val3);
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[3030] | 317 | }
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| 318 |
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| 319 |
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[3033] | 320 | void ShaderProgram::SetArray1f(int idx, float *vals, int numElements)
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[3030] | 321 | {
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[3033] | 322 | cgGLSetParameterArray1f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 323 | }
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| 324 |
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| 325 |
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[3033] | 326 | void ShaderProgram::SetArray2f(int idx, float *vals, int numElements)
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[3030] | 327 | {
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[3033] | 328 | cgGLSetParameterArray2f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 329 | }
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| 330 |
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| 331 |
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[3033] | 332 | void ShaderProgram::SetArray3f(int idx, float *vals, int numElements)
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[3030] | 333 | {
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[3033] | 334 | cgGLSetParameterArray3f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 335 | }
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| 336 |
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| 337 |
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[3033] | 338 | void ShaderProgram::SetMatrix(int idx, const Matrix4x4 &mat)
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[3030] | 339 | {
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[3033] | 340 | cgGLSetMatrixParameterfc(GetParameter(idx), (const float *)mat.x);
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| 341 | }
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[3030] | 342 |
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[3033] | 343 |
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| 344 | void ShaderProgram::SetTexture(int idx, unsigned int tex)
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| 345 | {
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| 346 | CGparameter p = GetParameter(idx);
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| 347 |
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[3030] | 348 | cgGLSetTextureParameter(p, tex);
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[3031] | 349 | cgGLEnableTextureParameter(p);
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[3034] | 350 | }
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[3031] | 351 |
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[3034] | 352 |
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| 353 | void ShaderProgram::SetValue1f(const string &name, float val)
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| 354 | {
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| 355 | cgGLSetParameter1f(GetOrCreateParameter(name), val);
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| 356 | }
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| 357 |
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| 358 |
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| 359 | void ShaderProgram::SetValue2f(const string &name, float val1, float val2)
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| 360 | {
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| 361 | cgGLSetParameter2f(GetOrCreateParameter(name), val1, val2);
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| 362 | }
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| 363 |
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| 364 |
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| 365 | void ShaderProgram::SetValue3f(const string &name, float val1, float val2, float val3)
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| 366 | {
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| 367 | cgGLSetParameter3f(GetOrCreateParameter(name), val1, val2, val3);
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| 368 | }
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| 369 |
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| 370 |
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| 371 | void ShaderProgram::SetArray1f(const string &name, float *vals, int numElements)
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| 372 | {
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| 373 | cgGLSetParameterArray1f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 374 | }
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| 375 |
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| 376 |
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| 377 | void ShaderProgram::SetArray2f(const string &name, float *vals, int numElements)
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| 378 | {
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| 379 | cgGLSetParameterArray2f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 380 | }
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| 381 |
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| 382 |
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| 383 | void ShaderProgram::SetArray3f(const string &name, float *vals, int numElements)
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| 384 | {
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| 385 | cgGLSetParameterArray3f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 386 | }
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| 387 |
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| 388 |
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| 389 | void ShaderProgram::SetMatrix(const string &name, const Matrix4x4 &mat)
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| 390 | {
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| 391 | cgGLSetMatrixParameterfc(GetOrCreateParameter(name), (const float *)mat.x);
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| 392 | }
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| 393 |
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| 394 |
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| 395 | void ShaderProgram::SetTexture(const string &name, unsigned int tex)
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| 396 | {
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| 397 | CGparameter p = GetOrCreateParameter(name);
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| 398 |
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| 399 | cgGLSetTextureParameter(p, tex);
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| 400 | cgGLEnableTextureParameter(p);
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| 401 |
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[3030] | 402 | mTextureParams.push_back(p);
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| 403 | }
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| 404 |
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| 405 |
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[3034] | 406 | int ShaderProgram::GetParamIdxByName(const std::string &name) const
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[3030] | 407 | {
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[3034] | 408 | CGParameterMap::const_iterator it = mParamHash.find(name);
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| 409 | return (*it).second;
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[3030] | 410 | }
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| 411 |
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| 412 |
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| 413 | } // namespace |
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