[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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[3046] | 6 | #include "Light.h"
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[3114] | 7 | #include "SceneEntity.h"
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| 8 | #include "Transform3.h"
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[3030] | 9 |
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| 10 | using namespace std;
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| 11 |
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| 12 | namespace CHCDemoEngine
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| 13 | {
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| 14 |
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[3045] | 15 | //////////
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| 16 | //-- changing shader parameters
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[3046] | 17 |
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[3043] | 18 | static float sCurrentTimer = 0;
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[3115] | 19 | static float sOldTimer = 0;
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[3045] | 20 | static Matrix4x4 sCurrentViewMatrix = IdentityMatrix();
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[3046] | 21 | static Vector3 sCurrentViewDir = Vector3::UNIT_Y();
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| 22 | static Vector3 sCurrentLightDir = Vector3::UNIT_Y();
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[3030] | 23 |
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[3043] | 24 |
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[3112] | 25 |
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[3046] | 26 | /*********************************************************/
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| 27 | /* GPUProgramParameters implementation */
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| 28 | /*********************************************************/
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| 29 |
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| 30 |
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[3045] | 31 | GPUProgramParameters::GPUProgramParameters(ShaderProgram *p):
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[3116] | 32 | mProgram(p)
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[3033] | 33 | {
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[3116] | 34 | Reset();
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[3033] | 35 | }
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| 36 |
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[3036] | 37 |
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[3045] | 38 | GPUProgramParameters::GPUProgramParameters():
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[3116] | 39 | mProgram(NULL)
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[3045] | 40 | {
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[3116] | 41 | Reset();
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[3045] | 42 | }
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| 43 |
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| 44 |
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[3036] | 45 | void GPUProgramParameters::Reset()
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| 46 | {
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| 47 | mFloats.clear();
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| 48 | mTextures.clear();
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| 49 | mMatrices.clear();
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| 50 | mArrays.clear();
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[3112] | 51 | mMatrixArrays.clear();
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[3041] | 52 |
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[3045] | 53 | mTimerParam = -1;
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[3116] | 54 | mOldTimerParam = -1;
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[3046] | 55 | mViewDirParam = -1;
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| 56 | mLightDirParam = -1;
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[3045] | 57 | mViewMatrixParam = -1;
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[3114] | 58 |
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| 59 | mModelMatrixParam = -1;
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| 60 | mOldModelMatrixParam = -1;
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[3036] | 61 | }
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| 62 |
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| 63 |
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[3033] | 64 | void GPUProgramParameters::SetValue1f(int idx, float value)
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| 65 | {
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[3036] | 66 | if (mFloats.size() < idx + 1)
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| 67 | mFloats.resize(idx + 1);
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| 68 |
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| 69 | mFloats[idx] = FloatParam(&value, 1);
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[3033] | 70 | }
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| 71 |
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| 72 |
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| 73 | void GPUProgramParameters::SetValue2f(int idx, float val1, float val2)
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| 74 | {
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[3036] | 75 | if (mFloats.size() < idx + 1)
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| 76 | mFloats.resize(idx + 1);
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| 77 |
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| 78 | float vals[] = {val1, val2};
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| 79 |
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| 80 | mFloats[idx] = FloatParam(vals, 2);
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[3033] | 81 | }
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| 82 |
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| 83 |
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[3036] | 84 | void GPUProgramParameters::SetValue3f(int idx, float val1, float val2, float val3)
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[3033] | 85 | {
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[3036] | 86 | if (mFloats.size() < idx + 1)
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| 87 | mFloats.resize(idx + 1);
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| 88 |
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| 89 | float vals[] = {val1, val2, val3};
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| 90 |
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| 91 | mFloats[idx] = FloatParam(vals, 3);
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[3033] | 92 | }
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| 93 |
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| 94 |
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| 95 | void GPUProgramParameters::SetArray1f(int idx, float *vals, int numElements)
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| 96 | {
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[3036] | 97 | if (mArrays.size() < idx + 1)
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| 98 | mArrays.resize(idx + 1);
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| 99 |
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| 100 | mArrays[idx] = ArrayParam(vals, 1, numElements);
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[3033] | 101 | }
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| 102 |
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| 103 |
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| 104 | void GPUProgramParameters::SetArray2f(int idx, float *vals, int numElements)
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| 105 | {
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[3036] | 106 | if (mArrays.size() < idx + 1)
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| 107 | mArrays.resize(idx + 1);
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| 108 |
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| 109 | mArrays[idx] = ArrayParam(vals, 2, numElements);
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[3033] | 110 | }
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| 111 |
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| 112 |
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| 113 | void GPUProgramParameters::SetArray3f(int idx, float *vals, int numElements)
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| 114 | {
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[3036] | 115 | if (mArrays.size() < idx + 1)
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| 116 | mArrays.resize(idx + 1);
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| 117 |
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| 118 | mArrays[idx] = ArrayParam(vals, 3, numElements);
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[3033] | 119 | }
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| 120 |
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| 121 |
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[3112] | 122 | void GPUProgramParameters::SetMatrixArray(int idx, float *mats, int numElements)
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| 123 | {
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| 124 | if (mMatrixArrays.size() < idx + 1)
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| 125 | mMatrixArrays.resize(idx + 1);
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| 126 |
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| 127 | mMatrixArrays[idx] = MatrixArrayParam(mats, numElements);
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| 128 | }
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| 129 |
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| 130 |
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[3033] | 131 | void GPUProgramParameters::SetTexture(int idx, unsigned int tex)
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| 132 | {
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[3036] | 133 | if (mTextures.size() < idx + 1)
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| 134 | mTextures.resize(idx + 1);
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| 135 |
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| 136 | mTextures[idx] = IntParam(tex);
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[3033] | 137 | }
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| 138 |
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| 139 |
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[3113] | 140 | void GPUProgramParameters::SetMatrix(int idx, const Matrix4x4 &mat)
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[3033] | 141 | {
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[3036] | 142 | if (mMatrices.size() < idx + 1)
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| 143 | mMatrices.resize(idx + 1);
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| 144 |
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| 145 | mMatrices[idx] = MatrixParam(mat);
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[3033] | 146 | }
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| 147 |
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| 148 |
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[3041] | 149 | void GPUProgramParameters::SetTimerParam(int idx)
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| 150 | {
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[3045] | 151 | mTimerParam = idx;
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[3041] | 152 | }
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| 153 |
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| 154 |
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[3115] | 155 | void GPUProgramParameters::SetOldTimerParam(int idx)
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| 156 | {
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| 157 | mOldTimerParam = idx;
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| 158 | }
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| 159 |
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| 160 |
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[3045] | 161 | void GPUProgramParameters::SetViewMatrixParam(int idx)
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| 162 | {
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| 163 | mViewMatrixParam = idx;
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| 164 | }
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| 165 |
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| 166 |
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[3046] | 167 | void GPUProgramParameters::SetViewDirParam(int idx)
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[3045] | 168 | {
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[3046] | 169 | mViewDirParam = idx;
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[3045] | 170 | }
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| 171 |
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| 172 |
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[3046] | 173 | void GPUProgramParameters::SetLightDirParam(int idx)
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| 174 | {
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| 175 | mLightDirParam = idx;
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| 176 | }
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| 177 |
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| 178 |
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[3114] | 179 | void GPUProgramParameters::SetModelMatrixParam(int idx)
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| 180 | {
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| 181 | mModelMatrixParam = idx;
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| 182 | }
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| 183 |
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| 184 |
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| 185 | void GPUProgramParameters::SetOldModelMatrixParam(int idx)
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| 186 | {
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| 187 | mOldModelMatrixParam = idx;
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| 188 | }
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| 189 |
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| 190 |
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[3033] | 191 | void GPUProgramParameters::SetValue1f(const string &name, float val)
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| 192 | {
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[3034] | 193 | SetValue1f(mProgram->GetParamIdxByName(name), val);
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[3033] | 194 | }
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| 195 |
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| 196 |
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[3034] | 197 | void GPUProgramParameters::SetValue2f(const string &name, float val1, float val2)
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[3033] | 198 | {
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[3034] | 199 | SetValue2f(mProgram->GetParamIdxByName(name), val1, val2);
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[3033] | 200 | }
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| 201 |
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| 202 |
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| 203 | void GPUProgramParameters::SetValue3f(const string &name, float val1, float val2, float val3)
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| 204 | {
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[3034] | 205 | SetValue3f(mProgram->GetParamIdxByName(name), val1, val2, val3);
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[3033] | 206 | }
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| 207 |
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| 208 |
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| 209 | void GPUProgramParameters::SetArray1f(const string &name, float *vals, int numElements)
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| 210 | {
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[3034] | 211 | SetArray1f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 212 | }
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| 213 |
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| 214 |
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[3034] | 215 | void GPUProgramParameters::SetArray2f(const string &name, float *vals, int numElements)
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[3033] | 216 | {
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[3034] | 217 | SetArray2f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 218 | }
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| 219 |
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| 220 |
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| 221 | void GPUProgramParameters::SetArray3f(const string &name, float *vals, int numElements)
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| 222 | {
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[3034] | 223 | SetArray3f(mProgram->GetParamIdxByName(name), vals, numElements);
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[3033] | 224 | }
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| 225 |
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| 226 |
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[3113] | 227 | void GPUProgramParameters::SetMatrix(const string &name, const Matrix4x4 &mat)
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[3033] | 228 | {
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[3034] | 229 | SetMatrix(mProgram->GetParamIdxByName(name), mat);
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[3033] | 230 | }
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| 231 |
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| 232 |
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[3112] | 233 | void GPUProgramParameters::SetMatrixArray(const string &name, float *mats, int numElements)
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| 234 | {
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| 235 | SetMatrixArray(mProgram->GetParamIdxByName(name), mats, numElements);
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| 236 | }
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| 237 |
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| 238 |
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[3033] | 239 | void GPUProgramParameters::SetTexture(const string &name, unsigned int tex)
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| 240 | {
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[3034] | 241 | SetTexture(mProgram->GetParamIdxByName(name), tex);
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[3033] | 242 | }
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| 243 |
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| 244 |
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[3114] | 245 | void GPUProgramParameters::UpdateParameters(SceneEntity *ent)
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[3034] | 246 | {
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[3045] | 247 | if (!mProgram) return;
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| 248 |
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[3036] | 249 | for (int i = 0; i < (int)mFloats.size(); ++ i)
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[3034] | 250 | {
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| 251 | const FloatParam &p = mFloats[i];
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| 252 |
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[3036] | 253 | if (!p.mValid) continue;
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| 254 |
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[3034] | 255 | switch (p.mNumComponents)
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| 256 | {
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| 257 | case 1:
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[3036] | 258 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 259 | break;
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| 260 | case 2:
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[3036] | 261 | mProgram->SetValue2f(i, p.mValues[0], p.mValues[1]);
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[3034] | 262 | break;
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| 263 | case 3:
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[3036] | 264 | mProgram->SetValue3f(i, p.mValues[0], p.mValues[1], p.mValues[2]);
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[3034] | 265 | break;
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| 266 | default:
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[3036] | 267 | mProgram->SetValue1f(i, p.mValues[0]);
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[3034] | 268 | }
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| 269 | }
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| 270 |
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[3036] | 271 | for (int i = 0; i < (int)mTextures.size(); ++ i)
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[3034] | 272 | {
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| 273 | const IntParam &p = mTextures[i];
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[3036] | 274 |
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| 275 | if (p.mValid)
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| 276 | mProgram->SetTexture(i, p.mValue);
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[3034] | 277 | }
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| 278 |
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[3036] | 279 | for (int i = 0; i < (int)mMatrices.size(); ++ i)
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[3034] | 280 | {
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| 281 | const MatrixParam &p = mMatrices[i];
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[3036] | 282 |
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[3113] | 283 | if (p.mValid) mProgram->SetMatrix(i, p.mValue);
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[3034] | 284 | }
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[3036] | 285 |
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| 286 | for (int i = 0; i < (int)mArrays.size(); ++ i)
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| 287 | {
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| 288 | const ArrayParam &p = mArrays[i];
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| 289 |
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| 290 | if (!p.mValid) continue;
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| 291 |
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| 292 | switch (p.mNumComponents)
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| 293 | {
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| 294 | case 1:
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| 295 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 296 | break;
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| 297 | case 2:
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| 298 | mProgram->SetArray2f(i, p.mValues, p.mNumEntries);
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| 299 | break;
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| 300 | case 3:
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| 301 | mProgram->SetArray3f(i, p.mValues, p.mNumEntries);
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| 302 | break;
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| 303 | default:
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| 304 | mProgram->SetArray1f(i, p.mValues, p.mNumEntries);
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| 305 | }
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| 306 | }
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[3041] | 307 |
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[3112] | 308 | for (int i = 0; i < (int)mMatrixArrays.size(); ++ i)
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| 309 | {
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| 310 | const MatrixArrayParam &p = mMatrixArrays[i];
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| 311 |
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| 312 | if (p.mValid)
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| 313 | mProgram->SetMatrixArray(i, p.mValues, p.mNumEntries);
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| 314 | }
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| 315 |
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[3045] | 316 | if (mTimerParam >= 0)
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| 317 | mProgram->SetValue1f(mTimerParam, sCurrentTimer);
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[3115] | 318 | if (mOldTimerParam >= 0)
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| 319 | mProgram->SetValue1f(mOldTimerParam, sOldTimer);
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[3046] | 320 | if (mViewDirParam >= 0)
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| 321 | mProgram->SetValue3f(mViewDirParam, sCurrentViewDir.x, sCurrentViewDir.y, sCurrentViewDir.z);
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| 322 | if (mLightDirParam >= 0)
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| 323 | mProgram->SetValue3f(mLightDirParam, sCurrentLightDir.x, sCurrentLightDir.y, sCurrentLightDir.z);
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[3045] | 324 | if (mViewMatrixParam >= 0)
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| 325 | mProgram->SetMatrix(mViewMatrixParam, sCurrentViewMatrix);
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[3114] | 326 |
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| 327 | if (ent)
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| 328 | {
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| 329 | if (mModelMatrixParam >= 0)
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| 330 | mProgram->SetMatrix(mModelMatrixParam, ent->GetTransform()->GetMatrix());
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| 331 | if (mOldModelMatrixParam >= 0)
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| 332 | mProgram->SetMatrix(mOldModelMatrixParam, ent->GetTransform()->GetOldMatrix());
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| 333 | }
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[3034] | 334 | }
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| 335 |
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| 336 |
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[3046] | 337 | void GPUProgramParameters::InitFrame(Camera *cam, DirectionalLight *light)
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[3043] | 338 | {
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| 339 | static PerfTimer mytimer;
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[3115] | 340 | sOldTimer = sCurrentTimer;
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[3043] | 341 | sCurrentTimer = mytimer.Elapsedms(false) * M_PI / 180.0f;
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[3045] | 342 |
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| 343 | cam->GetModelViewMatrix(sCurrentViewMatrix);
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[3046] | 344 | sCurrentViewDir = cam->GetDirection();
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| 345 |
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| 346 | Matrix4x4 vo;
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| 347 | // transform to view space
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| 348 | cam->GetViewOrientationMatrix(vo);
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| 349 | sCurrentLightDir = vo * -light->GetDirection();
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[3043] | 350 | }
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[3034] | 351 |
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[3043] | 352 |
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| 353 |
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[3034] | 354 | /********************************************************/
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| 355 | /* ShaderProgram implementation */
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| 356 | /********************************************************/
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| 357 |
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| 358 |
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[3030] | 359 | ShaderProgram::ShaderProgram(CGcontext context,
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| 360 | const std::string &filename,
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| 361 | CGprofile profile,
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| 362 | const std::string &functionName)
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| 363 | {
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| 364 | mProgram = cgCreateProgramFromFile(context,
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| 365 | CG_SOURCE,
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| 366 | filename.c_str(),
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| 367 | profile,
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| 368 | functionName.c_str(),
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| 369 | NULL);
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| 370 |
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| 371 | if (mProgram) cgGLLoadProgram(mProgram);
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[3033] | 372 |
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[3034] | 373 | const int maxParams = 64;
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| 374 | mParameters.resize(maxParams);
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[3033] | 375 |
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[3034] | 376 | for (int i = 0; i < maxParams; ++ i)
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[3033] | 377 | mParameters[i] = NULL;
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[3030] | 378 | }
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| 379 |
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| 380 |
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[3033] | 381 | void ShaderProgram::Bind()
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| 382 | {
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| 383 | cgGLBindProgram(mProgram);
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| 384 |
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| 385 | // enable all texture parameters
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| 386 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 387 |
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| 388 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 389 | cgGLEnableTextureParameter(*it);
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| 390 | }
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| 391 |
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| 392 |
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[3046] | 393 | void ShaderProgram::Release()
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[3033] | 394 | {
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| 395 | CGParameterArray::const_iterator it, it_end = mTextureParams.end();
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| 396 |
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| 397 | // disable all texture parameters
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| 398 | for (it = mTextureParams.begin(); it != it_end; ++ it)
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| 399 | cgGLDisableTextureParameter(*it);
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[3046] | 400 | }
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[3033] | 401 |
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| 402 |
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| 403 | CGparameter ShaderProgram::AddParameter(const string &name, int idx)
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| 404 | {
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| 405 | CGparameter p = GetOrCreateParameter(name);
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| 406 |
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[3034] | 407 | mParamHash[name] = idx;
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[3033] | 408 | mParameters[idx] = p;
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[3034] | 409 |
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[3033] | 410 | return p;
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| 411 | }
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| 412 |
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| 413 |
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[3104] | 414 | void ShaderProgram::AddParameters(std::string params[],
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| 415 | int startIdx,
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| 416 | int numElements)
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| 417 | {
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| 418 | for (int i = 0; i < numElements; ++ i)
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| 419 | AddParameter(params[i], startIdx + i);
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| 420 | }
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| 421 |
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| 422 |
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[3030] | 423 | CGparameter ShaderProgram::GetOrCreateParameter(const string &name)
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| 424 | {
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| 425 | CGparameter p;
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| 426 | CGParameterMap::const_iterator it = mParamHash.find(name);
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| 427 |
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| 428 | if (it == mParamHash.end())
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| 429 | p = cgGetNamedParameter(mProgram, name.c_str());
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| 430 | else
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[3033] | 431 | p = mParameters[(*it).second];
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[3030] | 432 |
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| 433 | //cout << "name: " << name << " " << p << " " << mProgram << endl;
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| 434 | return p;
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| 435 | }
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| 436 |
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| 437 |
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[3033] | 438 | CGparameter ShaderProgram::GetParameter(int idx) const
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[3030] | 439 | {
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[3034] | 440 | return mParameters[idx];
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[3030] | 441 | }
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| 442 |
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| 443 |
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[3033] | 444 | void ShaderProgram::SetValue1f(int idx, float val)
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[3030] | 445 | {
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[3033] | 446 | cgGLSetParameter1f(GetParameter(idx), val);
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[3030] | 447 | }
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| 448 |
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| 449 |
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[3033] | 450 | void ShaderProgram::SetValue2f(int idx, float val1, float val2)
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[3030] | 451 | {
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[3033] | 452 | cgGLSetParameter2f(GetParameter(idx), val1, val2);
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[3030] | 453 | }
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| 454 |
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| 455 |
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[3033] | 456 | void ShaderProgram::SetValue3f(int idx, float val1, float val2, float val3)
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[3030] | 457 | {
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[3033] | 458 | cgGLSetParameter3f(GetParameter(idx), val1, val2, val3);
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[3030] | 459 | }
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| 460 |
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| 461 |
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[3033] | 462 | void ShaderProgram::SetArray1f(int idx, float *vals, int numElements)
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[3030] | 463 | {
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[3033] | 464 | cgGLSetParameterArray1f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 465 | }
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| 466 |
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| 467 |
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[3033] | 468 | void ShaderProgram::SetArray2f(int idx, float *vals, int numElements)
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[3030] | 469 | {
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[3033] | 470 | cgGLSetParameterArray2f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 471 | }
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| 472 |
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| 473 |
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[3033] | 474 | void ShaderProgram::SetArray3f(int idx, float *vals, int numElements)
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[3030] | 475 | {
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[3033] | 476 | cgGLSetParameterArray3f(GetParameter(idx), 0, numElements, (const float *)vals);
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[3030] | 477 | }
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| 478 |
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| 479 |
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[3033] | 480 | void ShaderProgram::SetMatrix(int idx, const Matrix4x4 &mat)
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[3030] | 481 | {
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[3033] | 482 | cgGLSetMatrixParameterfc(GetParameter(idx), (const float *)mat.x);
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| 483 | }
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[3030] | 484 |
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[3033] | 485 |
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[3112] | 486 | void ShaderProgram::SetMatrixArray(int idx, float *mats, int numElements)
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| 487 | {
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| 488 | cgGLSetMatrixParameterArrayfc(GetParameter(idx), 0, numElements, (const float *)mats);
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| 489 | }
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| 490 |
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| 491 |
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| 492 |
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[3033] | 493 | void ShaderProgram::SetTexture(int idx, unsigned int tex)
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| 494 | {
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| 495 | CGparameter p = GetParameter(idx);
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| 496 |
|
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[3030] | 497 | cgGLSetTextureParameter(p, tex);
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[3031] | 498 | cgGLEnableTextureParameter(p);
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[3034] | 499 | }
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[3031] | 500 |
|
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[3034] | 501 |
|
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| 502 | void ShaderProgram::SetValue1f(const string &name, float val)
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| 503 | {
|
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| 504 | cgGLSetParameter1f(GetOrCreateParameter(name), val);
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| 505 | }
|
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| 506 |
|
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| 507 |
|
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| 508 | void ShaderProgram::SetValue2f(const string &name, float val1, float val2)
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| 509 | {
|
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| 510 | cgGLSetParameter2f(GetOrCreateParameter(name), val1, val2);
|
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| 511 | }
|
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| 512 |
|
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| 513 |
|
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| 514 | void ShaderProgram::SetValue3f(const string &name, float val1, float val2, float val3)
|
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| 515 | {
|
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| 516 | cgGLSetParameter3f(GetOrCreateParameter(name), val1, val2, val3);
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| 517 | }
|
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| 518 |
|
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| 519 |
|
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| 520 | void ShaderProgram::SetArray1f(const string &name, float *vals, int numElements)
|
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| 521 | {
|
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| 522 | cgGLSetParameterArray1f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
|
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| 523 | }
|
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| 524 |
|
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| 525 |
|
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| 526 | void ShaderProgram::SetArray2f(const string &name, float *vals, int numElements)
|
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| 527 | {
|
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| 528 | cgGLSetParameterArray2f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
|
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| 529 | }
|
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| 530 |
|
---|
| 531 |
|
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| 532 | void ShaderProgram::SetArray3f(const string &name, float *vals, int numElements)
|
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| 533 | {
|
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| 534 | cgGLSetParameterArray3f(GetOrCreateParameter(name), 0, numElements, (const float *)vals);
|
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| 535 | }
|
---|
| 536 |
|
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| 537 |
|
---|
| 538 | void ShaderProgram::SetMatrix(const string &name, const Matrix4x4 &mat)
|
---|
| 539 | {
|
---|
| 540 | cgGLSetMatrixParameterfc(GetOrCreateParameter(name), (const float *)mat.x);
|
---|
| 541 | }
|
---|
| 542 |
|
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| 543 |
|
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| 544 | void ShaderProgram::SetTexture(const string &name, unsigned int tex)
|
---|
| 545 | {
|
---|
| 546 | CGparameter p = GetOrCreateParameter(name);
|
---|
| 547 |
|
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| 548 | cgGLSetTextureParameter(p, tex);
|
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| 549 | cgGLEnableTextureParameter(p);
|
---|
| 550 |
|
---|
[3030] | 551 | mTextureParams.push_back(p);
|
---|
| 552 | }
|
---|
| 553 |
|
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| 554 |
|
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[3034] | 555 | int ShaderProgram::GetParamIdxByName(const std::string &name) const
|
---|
[3030] | 556 | {
|
---|
[3034] | 557 | CGParameterMap::const_iterator it = mParamHash.find(name);
|
---|
| 558 | return (*it).second;
|
---|
[3030] | 559 | }
|
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| 560 |
|
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| 561 |
|
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| 562 | } // namespace |
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