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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 787 | chris | 1 | using System; |
| 2 | using System.Collections.Generic; |
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| 3 | using System.Linq; |
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| 4 | using System.Text; |
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| 5 | using System.Threading.Tasks; |
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| 6 | |||
| 7 | using BauzoidNET.math; |
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| 8 | |||
| 9 | namespace BauzoidNET.graphics.renderstates |
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| 10 | { |
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| 11 | public class RenderStates |
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| 12 | { |
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| 13 | public static int NUM_TEXTURE_STAGES = 2; |
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| 14 | public static int MAX_VERTEX_BUFFER_ID = 8; |
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| 15 | |||
| 16 | public BlendingStates blending = null; |
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| 17 | public CullingStates culling = null; |
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| 18 | public DepthTestStates depthTest = null; |
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| 19 | public ScissorStates scissor = null; |
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| 20 | |||
| 21 | private TextureStage[] mTextureStages = new TextureStage[NUM_TEXTURE_STAGES]; |
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| 22 | private bool mLocked = false; |
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| 23 | |||
| 24 | public const int MATRIX_STACK_SIZE = 16; |
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| 25 | |||
| 26 | //public Matrix4 modelViewProjection; |
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| 27 | public Matrix4 model = Matrix4.createIdentity(); |
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| 28 | public Matrix4 view = Matrix4.createIdentity(); |
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| 29 | public Matrix4 projection = Matrix4.createIdentity(); |
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| 30 | |||
| 31 | private Matrix4[] mModelStack = new Matrix4[MATRIX_STACK_SIZE]; |
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| 32 | private Matrix4[] mViewStack = new Matrix4[MATRIX_STACK_SIZE]; |
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| 33 | private Matrix4[] mProjectionStack = new Matrix4[MATRIX_STACK_SIZE]; |
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| 34 | |||
| 35 | private int mModelStackCurrentIndex = 0; |
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| 36 | private int mViewStackCurrentIndex = 0; |
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| 37 | private int mProjectionStackCurrentIndex = 0; |
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| 38 | |||
| 39 | /** Constructor. */ |
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| 40 | public RenderStates() |
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| 41 | { |
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| 42 | blending = new BlendingStates(this); |
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| 43 | culling = new CullingStates(this); |
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| 44 | depthTest = new DepthTestStates(this); |
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| 45 | scissor = new ScissorStates(this); |
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| 46 | |||
| 47 | for (int i = 0; i < NUM_TEXTURE_STAGES; i++) |
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| 48 | { |
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| 49 | mTextureStages[i] = new TextureStage(this, i); |
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| 50 | } |
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| 51 | |||
| 52 | for (int i = 0; i < MATRIX_STACK_SIZE; i++) |
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| 53 | { |
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| 54 | mModelStack[i] = Matrix4.createIdentity(); |
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| 55 | mViewStack[i] = Matrix4.createIdentity(); |
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| 56 | mProjectionStack[i] = Matrix4.createIdentity(); |
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| 57 | } |
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| 58 | } |
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| 59 | |||
| 60 | /** Initialize render states. */ |
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| 61 | public void initialize() //throws BauzoidException |
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| 62 | { |
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| 63 | blending.initialize(); |
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| 64 | culling.initialize(); |
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| 65 | depthTest.initialize(); |
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| 66 | scissor.initialize(); |
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| 67 | |||
| 68 | for (int i = 0; i < NUM_TEXTURE_STAGES; i++) |
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| 69 | { |
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| 70 | mTextureStages[i].initialize(); |
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| 71 | } |
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| 72 | } |
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| 73 | |||
| 74 | /** Activate renderstates - calls activate(false). */ |
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| 75 | public void activate() |
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| 76 | { |
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| 77 | activate(false); |
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| 78 | } |
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| 79 | |||
| 80 | /** Activate render states with force parameter. */ |
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| 81 | public void activate(bool force) |
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| 82 | { |
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| 83 | blending.activate(force); |
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| 84 | culling.activate(force); |
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| 85 | depthTest.activate(force); |
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| 86 | scissor.activate(force); |
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| 87 | } |
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| 88 | |||
| 89 | /** Reset to default values. */ |
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| 90 | public void reset() |
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| 91 | { |
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| 92 | blending.reset(); |
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| 93 | culling.reset(); |
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| 94 | depthTest.reset(); |
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| 95 | scissor.reset(); |
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| 96 | } |
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| 97 | |||
| 98 | /** Deactivate render states. */ |
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| 99 | public void deactivate() |
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| 100 | { |
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| 101 | reset(); |
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| 102 | activate(false); |
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| 103 | } |
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| 104 | |||
| 105 | /** Check if the renderstates are locked. */ |
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| 106 | public bool isLocked() |
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| 107 | { |
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| 108 | return mLocked; |
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| 109 | } |
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| 110 | |||
| 111 | /** Lock renderstates. */ |
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| 112 | public void lockStates(bool doLock) |
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| 113 | { |
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| 114 | mLocked = doLock; |
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| 115 | } |
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| 116 | |||
| 117 | /** Get a texture stage. */ |
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| 118 | public TextureStage getTextureStage(int index) |
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| 119 | { |
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| 120 | return mTextureStages[index]; |
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| 121 | } |
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| 122 | |||
| 123 | /** Multiply matrices and return the full model-view-projection matrix. */ |
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| 124 | public Matrix4 getModelViewProjection() |
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| 125 | { |
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| 126 | Matrix4 mvpMatrix = Matrix4.multiply(model, view); |
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| 127 | mvpMatrix = Matrix4.multiply(mvpMatrix, projection); |
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| 128 | return mvpMatrix; |
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| 129 | } |
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| 130 | |||
| 131 | public void getModelViewProjection(Matrix4 target) |
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| 132 | { |
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| 133 | Matrix4.multiply(target, model, view); |
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| 134 | Matrix4.multiply(target, target, projection); |
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| 135 | } |
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| 136 | |||
| 137 | /** Push current model matrix to stack. */ |
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| 138 | public void pushModelMatrix() |
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| 139 | { |
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| 140 | if (mModelStackCurrentIndex >= MATRIX_STACK_SIZE) |
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| 141 | return; |
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| 142 | |||
| 143 | // Create copy so that calling code can work on a different matrix without affecting anything |
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| 144 | mModelStack[mModelStackCurrentIndex].copyFrom(model); |
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| 145 | mModelStackCurrentIndex++; |
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| 146 | } |
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| 147 | |||
| 148 | /** Pop current model matrix from stack. */ |
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| 149 | public void popModelMatrix() |
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| 150 | { |
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| 151 | if (mModelStackCurrentIndex <= 0) |
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| 152 | return; |
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| 153 | |||
| 154 | mModelStackCurrentIndex--; |
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| 155 | model.copyFrom(mModelStack[mModelStackCurrentIndex]); |
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| 156 | } |
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| 157 | |||
| 158 | /** Push current model matrix to stack. */ |
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| 159 | public void pushViewMatrix() |
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| 160 | { |
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| 161 | if (mViewStackCurrentIndex >= MATRIX_STACK_SIZE) |
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| 162 | return; |
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| 163 | |||
| 164 | mViewStack[mViewStackCurrentIndex].copyFrom(view); |
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| 165 | mViewStackCurrentIndex++; |
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| 166 | } |
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| 167 | |||
| 168 | /** Pop current model matrix from stack. */ |
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| 169 | public void popViewMatrix() |
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| 170 | { |
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| 171 | if (mViewStackCurrentIndex <= 0) |
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| 172 | return; |
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| 173 | |||
| 174 | mViewStackCurrentIndex--; |
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| 175 | view.copyFrom(mViewStack[mViewStackCurrentIndex]); |
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| 176 | } |
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| 177 | |||
| 178 | /** Push current model matrix to stack. */ |
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| 179 | public void pushProjectionMatrix() |
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| 180 | { |
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| 181 | if (mProjectionStackCurrentIndex >= MATRIX_STACK_SIZE) |
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| 182 | return; |
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| 183 | |||
| 184 | mProjectionStack[mProjectionStackCurrentIndex].copyFrom(projection); |
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| 185 | mProjectionStackCurrentIndex++; |
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| 186 | } |
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| 187 | |||
| 188 | /** Pop current model matrix from stack. */ |
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| 189 | public void popProjectionMatrix() |
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| 190 | { |
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| 191 | if (mProjectionStackCurrentIndex <= 0) |
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| 192 | return; |
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| 193 | |||
| 194 | mProjectionStackCurrentIndex--; |
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| 195 | projection.copyFrom(mProjectionStack[mProjectionStackCurrentIndex]); |
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| 196 | } |
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| 197 | |||
| 198 | |||
| 199 | } |
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| 200 | } |