[3030] | 1 | #include "ShaderProgram.h"
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| 2 | #include "Matrix4x4.h"
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[3041] | 3 | #include "Timer/PerfTimer.h"
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[3045] | 4 | #include "Vector3.h"
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| 5 | #include "Camera.h"
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[3030] | 6 |
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| 7 |
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| 8 | using namespace std;
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| 9 |
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| 10 | namespace CHCDemoEngine
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| 11 | {
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| 12 |
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[3045] | 13 | //////////
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| 14 | //-- changing shader parameters
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[3043] | 15 | static float sCurrentTimer = 0;
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[3045] | 16 | static Matrix4x4 sCurrentViewMatrix = IdentityMatrix();
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| 17 | static Vector3 sCurrentViewVector = Vector3::UNIT_Y();
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[3030] | 18 |
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[3043] | 19 |
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[3045] | 20 | GPUProgramParameters::GPUProgramParameters(ShaderProgram *p):
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| 21 | mProgram(p),
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| 22 | mTimerParam(-1),
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| 23 | mViewVectorParam(-1),
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| 24 | mViewMatrixParam(-1)
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[3033] | 25 | {
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| 26 | }
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| 27 |
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[3036] | 28 |
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[3045] | 29 | GPUProgramParameters::GPUProgramParameters():
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| 30 | mProgram(NULL),
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| 31 | mTimerParam(-1),
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| 32 | mViewVectorParam(-1),
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| 33 | mViewMatrixParam(-1)
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| 34 | {
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| 35 | }
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| 36 |
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| 37 |
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[3036] | 38 | void GPUProgramParameters::Reset()
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| 39 | {
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| 40 | mFloats.clear();
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| 41 | mTextures.clear();
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| 42 | mMatrices.clear();
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| 43 | mArrays.clear();
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[3041] | 44 |
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[3045] | 45 | mTimerParam = -1;
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| 46 | mViewVectorParam = -1;
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| 47 | mViewMatrixParam = -1;
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[3036] | 48 | }
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| 49 |
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| 50 |
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[3033] | 51 | void GPUProgramParameters::SetValue1f(int idx, float value)
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| 52 | {
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[3036] | 53 | if (mFloats.size() < idx + 1)
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| 54 | mFloats.resize(idx + 1);
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| 55 |
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| 56 | mFloats[idx] = FloatParam(&value, 1);
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[3033] | 57 | }
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| 58 |
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| 59 |
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| 60 | void GPUProgramParameters::SetValue2f(int idx, float val1, float val2)
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| 61 | {
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[3036] | 62 | if (mFloats.size() < idx + 1)
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| 63 | mFloats.resize(idx + 1);
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| 64 |
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| 65 | float vals[] = {val1, val2};
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| 66 |
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| 67 | mFloats[idx] = FloatParam(vals, 2);
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[3033] | 68 | }
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| 69 |
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| 70 |
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[3036] | 71 | void GPUProgramParameters::SetValue3f(int idx, float val1, float val2, float val3)
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[3033] | 72 | {
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[3036] | 73 | if (mFloats.size() < idx + 1)
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| 74 | mFloats.resize(idx + 1);
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| 75 |
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| 76 | float vals[] = {val1, val2, val3};
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| 77 |
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| 78 | mFloats[idx] = FloatParam(vals, 3);
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[3033] | 79 | }
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| 80 |
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| 81 |
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| 82 | void GPUProgramParameters::SetArray1f(int idx, float *vals, int numElements)
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| 83 | {
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[3036] | 84 | if (mArrays.size() < idx + 1)
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| 85 | mArrays.resize(idx + 1);
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| 86 |
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| 87 | mArrays[idx] = ArrayParam(vals, 1, numElements);
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[3033] | 88 | }
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| 89 |
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| 90 |
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| 91 | void GPUProgramParameters::SetArray2f(int idx, float *vals, int numElements)
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| 92 | {
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[3036] | 93 | if (mArrays.size() < idx + 1)
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| 94 | mArrays.resize(idx + 1);
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| 95 |
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| 96 | mArrays[idx] = ArrayParam(vals, 2, numElements);
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[3033] | 97 | }
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| 98 |
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| 99 |
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| 100 | void GPUProgramParameters::SetArray3f(int idx, float *vals, int numElements)
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| 101 | {
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[3036] | 102 | if (mArrays.size() < idx + 1)
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| 103 | mArrays.resize(idx + 1);
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| 104 |
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| 105 | mArrays[idx] = ArrayParam(vals, 3, numElements);
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[3033] | 106 | }
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| 107 |
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| 108 |
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| 109 | void GPUProgramParameters::SetTexture(int idx, unsigned int tex)
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| 110 | {
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[3036] | 111 | if (mTextures.size() < idx + 1)
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| 112 | mTextures.resize(idx + 1);
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| 113 |
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| 114 | mTextures[idx] = IntParam(tex);
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[3033] | 115 | }
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| 116 |
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| 117 |
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| 118 | void GPUProgramParameters::SetMatrix(int idx, Matrix4x4 *mat)
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| 119 | {
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[3036] | 120 | if (mMatrices.size() < idx + 1)
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| 121 | mMatrices.resize(idx + 1);
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| 122 |
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| 123 | mMatrices[idx] = MatrixParam(mat);
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[3033] | 124 | }
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| 125 |
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| 126 |
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[3041] | 127 | void GPUProgramParameters::SetTimerParam(int idx)
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| 128 | {
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[3045] | 129 | mTimerParam = idx;
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[3041] | 130 | }
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| 131 |
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| 132 |
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[3045] | 133 | void GPUProgramParameters::SetViewMatrixParam(int idx)
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| 134 | {
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| 135 | mViewMatrixParam = idx;
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| 136 | }
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| 137 |
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| 138 |
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| 139 | void GPUProgramParameters::SetViewVectorParam(int idx)
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| 140 | {
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| 141 | mViewVectorParam = idx;
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| 142 | }
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| 143 |
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| 144 |
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[3033] | 145 | void GPUProgramParameters::SetValue1f(const string &name, float val)
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| 146 | {
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[3034] | 147 | SetValue1f(mProgram->GetParamIdxByName(name), val);
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[3033] | 148 | }
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| 149 |
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| 150 |
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[3034] | 151 | void GPUProgramParameters::SetValue2f(const string &name, float val1, float val2)
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[3033] | 152 | {
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[3034] | 153 | SetValue2f(mProgram->GetParamIdxByName(name), val1, val2);
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[3033] | 154 | }
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| 155 |
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| 156 |
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| 157 | void GPUProgramParameters::SetValue3f(const string &name, float val1, float val2, float val3)
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| 158 | {
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[3034] | 159 | SetValue3f(mProgram->GetParamIdxByName(name), val1, val2, val3);
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[3033] | 160 | }
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| 161 |
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| 162 |
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| 163 | void GPUProgramParameters::SetArray1f(const string &name, float *vals, int numElements)
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| 164 | {
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[3034] | 165 | SetArray1f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 166 | }
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| 167 |
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| 168 |
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[3034] | 169 | void GPUProgramParameters::SetArray2f(const string &name, float *vals, int numElements)
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[3033] | 170 | {
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[3034] | 171 | SetArray2f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 172 | }
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| 173 |
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| 174 |
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| 175 | void GPUProgramParameters::SetArray3f(const string &name, float *vals, int numElements)
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| 176 | {
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[3034] | 177 | SetArray3f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 178 | }
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| 179 |
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| 180 |
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| 181 | void GPUProgramParameters::SetMatrix(const string &name, Matrix4x4 *mat)
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| 182 | {
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[3034] | 183 | SetMatrix(mProgram->GetParamIdxByName(name), mat);
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[3033] | 184 | }
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| 185 |
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| 186 |
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| 187 | void GPUProgramParameters::SetTexture(const string &name, unsigned int tex)
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| 188 | {
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[3034] | 189 | SetTexture(mProgram->GetParamIdxByName(name), tex);
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[3033] | 190 | }
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| 191 |
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| 192 |
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[3034] | 193 | void GPUProgramParameters::UpdateParameters()
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| 194 | {
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[3045] | 195 | if (!mProgram) return;
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| 196 |
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[3036] | 197 | for (int i = 0; i < (int)mFloats.size(); ++ i)
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[3034] | 198 | {
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| 199 | const FloatParam &p = mFloats[i];
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| 200 |
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[3036] | 201 | if (!p.mValid) continue;
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| 202 |
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[3034] | 203 | switch (p.mNumComponents)
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| 204 | {
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| 205 | case 1:
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[3036] | 206 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 207 | break;
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| 208 | case 2:
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[3036] | 209 | mProgram->SetValue2f(i, p.mValues[0], p.mValues[1]);
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[3034] | 210 | break;
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| 211 | case 3:
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[3036] | 212 | mProgram->SetValue3f(i, p.mValues[0], p.mValues[1], p.mValues[2]);
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[3034] | 213 | break;
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| 214 | default:
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[3036] | 215 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 216 | }
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| 217 | }
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| 218 |
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[3036] | 219 | for (int i = 0; i < (int)mTextures.size(); ++ i)
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[3034] | 220 | {
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| 221 | const IntParam &p = mTextures[i];
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[3036] | 222 |
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| 223 | if (p.mValid)
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| 224 | mProgram->SetTexture(i, p.mValue);
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[3034] | 225 | }
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| 226 |
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[3036] | 227 | for (int i = 0; i < (int)mMatrices.size(); ++ i)
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[3034] | 228 | {
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| 229 | const MatrixParam &p = mMatrices[i];
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[3036] | 230 |
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| 231 | if (p.mValid)
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| 232 | mProgram->SetMatrix(i, *p.mValue);
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[3034] | 233 | }
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[3036] | 234 |
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| 235 | for (int i = 0; i < (int)mArrays.size(); ++ i)
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| 236 | {
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| 237 | const ArrayParam &p = mArrays[i];
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| 238 |
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| 239 | if (!p.mValid) continue;
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| 240 |
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| 241 | switch (p.mNumComponents)
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| 242 | {
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| 243 | case 1:
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| 244 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 245 | break;
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| 246 | case 2:
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| 247 | mProgram->SetArray2f(i, p.mValues, p.mNumEntries);
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| 248 | break;
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| 249 | case 3:
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| 250 | mProgram->SetArray3f(i, p.mValues, p.mNumEntries);
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| 251 | break;
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| 252 | default:
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| 253 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 254 | }
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| 255 | }
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[3041] | 256 |
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[3045] | 257 | if (mTimerParam >= 0)
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| 258 | mProgram->SetValue1f(mTimerParam, sCurrentTimer);
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| 259 |
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| 260 | if (mViewVectorParam >= 0)
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| 261 | mProgram->SetValue3f(mViewVectorParam, sCurrentViewVector.x, sCurrentViewVector.y, sCurrentViewVector.z);
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| 262 |
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| 263 | if (mViewMatrixParam >= 0)
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| 264 | mProgram->SetMatrix(mViewMatrixParam, sCurrentViewMatrix);
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[3034] | 265 | }
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| 266 |
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| 267 |
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[3045] | 268 | void GPUProgramParameters::InitFrame(Camera *cam)
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[3043] | 269 | {
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| 270 | static PerfTimer mytimer;
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| 271 | sCurrentTimer = mytimer.Elapsedms(false) * M_PI / 180.0f;
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[3045] | 272 |
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| 273 | cam->GetModelViewMatrix(sCurrentViewMatrix);
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| 274 | sCurrentViewVector = cam->GetDirection();
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[3043] | 275 | }
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[3034] | 276 |
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[3043] | 277 |
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| 278 |
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[3034] | 279 | /********************************************************/
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| 280 | /* ShaderProgram implementation */
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| 281 | /********************************************************/
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| 282 |
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| 283 |
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[3030] | 284 | ShaderProgram::ShaderProgram(CGcontext context,
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| 285 | const std::string &filename,
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| 286 | CGprofile profile,
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| 287 | const std::string &functionName)
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| 288 | {
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| 289 | mProgram = cgCreateProgramFromFile(context,
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| 290 | CG_SOURCE,
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| 291 | filename.c_str(),
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| 292 | profile,
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| 293 | functionName.c_str(),
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| 294 | NULL);
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| 295 |
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| 296 | if (mProgram) cgGLLoadProgram(mProgram);
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[3033] | 297 |
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[3034] | 298 | const int maxParams = 64;
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| 299 | mParameters.resize(maxParams);
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[3033] | 300 |
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[3034] | 301 | for (int i = 0; i < maxParams; ++ i)
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[3033] | 302 | {
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| 303 | mParameters[i] = NULL;
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| 304 | }
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[3030] | 305 | }
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| 306 |
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| 307 |
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[3033] | 308 | void ShaderProgram::Bind()
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| 309 | {
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| 310 | cgGLBindProgram(mProgram);
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| 311 |
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| 312 | // enable all texture parameters
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| 313 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 314 |
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| 315 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 316 | cgGLEnableTextureParameter(*it);
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| 317 | }
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| 318 |
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| 319 |
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| 320 | /*void ShaderProgram::Release()
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| 321 | {
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| 322 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 323 |
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| 324 | // disable all texture parameters
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| 325 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 326 | cgGLDisableTextureParameter(*it);
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| 327 | }*/
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| 328 |
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| 329 |
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| 330 | CGparameter ShaderProgram::AddParameter(const string &name, int idx)
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| 331 | {
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| 332 | CGparameter p = GetOrCreateParameter(name);
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| 333 |
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[3034] | 334 | mParamHash[name] = idx;
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[3033] | 335 | mParameters[idx] = p;
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[3034] | 336 |
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[3033] | 337 | return p;
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| 338 | }
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| 339 |
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| 340 |
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[3030] | 341 | CGparameter ShaderProgram::GetOrCreateParameter(const string &name)
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| 342 | {
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| 343 | CGparameter p;
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| 344 | CGParameterMap::const_iterator it = mParamHash.find(name);
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| 345 |
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| 346 | if (it == mParamHash.end())
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| 347 | {
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| 348 | p = cgGetNamedParameter(mProgram, name.c_str());
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| 349 | }
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| 350 | else
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| 351 | {
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[3033] | 352 | p = mParameters[(*it).second];
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[3030] | 353 | }
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| 354 |
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| 355 | //cout << "name: " << name << " " << p << " " << mProgram << endl;
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| 356 | return p;
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| 357 | }
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| 358 |
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| 359 |
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[3033] | 360 | CGparameter ShaderProgram::GetParameter(int idx) const
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[3030] | 361 | {
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[3034] | 362 | return mParameters[idx];
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[3030] | 363 | }
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| 364 |
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| 365 |
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[3033] | 366 | void ShaderProgram::SetValue1f(int idx, float val)
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[3030] | 367 | {
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[3033] | 368 | cgGLSetParameter1f(GetParameter(idx), val);
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[3030] | 369 | }
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| 370 |
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| 371 |
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[3033] | 372 | void ShaderProgram::SetValue2f(int idx, float val1, float val2)
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[3030] | 373 | {
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[3033] | 374 | cgGLSetParameter2f(GetParameter(idx), val1, val2);
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[3030] | 375 | }
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| 376 |
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| 377 |
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[3033] | 378 | void ShaderProgram::SetValue3f(int idx, float val1, float val2, float val3)
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[3030] | 379 | {
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[3033] | 380 | cgGLSetParameter3f(GetParameter(idx), val1, val2, val3);
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[3030] | 381 | }
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| 382 |
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| 383 |
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[3033] | 384 | void ShaderProgram::SetArray1f(int idx, float *vals, int numElements)
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[3030] | 385 | {
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[3033] | 386 | cgGLSetParameterArray1f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 387 | }
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| 388 |
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| 389 |
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[3033] | 390 | void ShaderProgram::SetArray2f(int idx, float *vals, int numElements)
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[3030] | 391 | {
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[3033] | 392 | cgGLSetParameterArray2f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 393 | }
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| 394 |
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| 395 |
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[3033] | 396 | void ShaderProgram::SetArray3f(int idx, float *vals, int numElements)
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[3030] | 397 | {
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[3033] | 398 | cgGLSetParameterArray3f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 399 | }
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| 400 |
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| 401 |
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[3033] | 402 | void ShaderProgram::SetMatrix(int idx, const Matrix4x4 &mat)
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[3030] | 403 | {
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[3033] | 404 | cgGLSetMatrixParameterfc(GetParameter(idx), (const float *)mat.x);
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| 405 | }
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[3030] | 406 |
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[3033] | 407 |
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| 408 | void ShaderProgram::SetTexture(int idx, unsigned int tex)
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| 409 | {
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| 410 | CGparameter p = GetParameter(idx);
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| 411 |
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[3030] | 412 | cgGLSetTextureParameter(p, tex);
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[3031] | 413 | cgGLEnableTextureParameter(p);
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[3034] | 414 | }
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[3031] | 415 |
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[3034] | 416 |
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| 417 | void ShaderProgram::SetValue1f(const string &name, float val)
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| 418 | {
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| 419 | cgGLSetParameter1f(GetOrCreateParameter(name), val);
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| 420 | }
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| 421 |
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| 422 |
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| 423 | void ShaderProgram::SetValue2f(const string &name, float val1, float val2)
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| 424 | {
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| 425 | cgGLSetParameter2f(GetOrCreateParameter(name), val1, val2);
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| 426 | }
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| 427 |
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| 428 |
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| 429 | void ShaderProgram::SetValue3f(const string &name, float val1, float val2, float val3)
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| 430 | {
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| 431 | cgGLSetParameter3f(GetOrCreateParameter(name), val1, val2, val3);
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| 432 | }
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| 433 |
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| 434 |
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| 435 | void ShaderProgram::SetArray1f(const string &name, float *vals, int numElements)
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| 436 | {
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| 437 | cgGLSetParameterArray1f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 438 | }
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| 439 |
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| 440 |
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| 441 | void ShaderProgram::SetArray2f(const string &name, float *vals, int numElements)
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| 442 | {
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| 443 | cgGLSetParameterArray2f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 444 | }
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| 445 |
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| 446 |
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| 447 | void ShaderProgram::SetArray3f(const string &name, float *vals, int numElements)
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| 448 | {
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| 449 | cgGLSetParameterArray3f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
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| 450 | }
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| 451 |
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| 452 |
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| 453 | void ShaderProgram::SetMatrix(const string &name, const Matrix4x4 &mat)
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| 454 | {
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| 455 | cgGLSetMatrixParameterfc(GetOrCreateParameter(name), (const float *)mat.x);
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| 456 | }
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| 457 |
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| 458 |
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| 459 | void ShaderProgram::SetTexture(const string &name, unsigned int tex)
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| 460 | {
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| 461 | CGparameter p = GetOrCreateParameter(name);
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| 462 |
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| 463 | cgGLSetTextureParameter(p, tex);
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| 464 | cgGLEnableTextureParameter(p);
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| 465 |
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[3030] | 466 | mTextureParams.push_back(p);
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| 467 | }
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| 468 |
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| 469 |
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[3034] | 470 | int ShaderProgram::GetParamIdxByName(const std::string &name) const
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[3030] | 471 | {
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[3034] | 472 | CGParameterMap::const_iterator it = mParamHash.find(name);
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| 473 | return (*it).second;
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[3030] | 474 | }
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| 475 |
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| 476 |
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| 477 | } // namespace |
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