chart2/source/view/inc/GL3DRenderer.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #ifndef INCLUDED_CHART2_SOURCE_VIEW_INC_GL3DRENDERER_HXX
  11 #define INCLUDED_CHART2_SOURCE_VIEW_INC_GL3DRENDERER_HXX
  12
  13 #include <glm/glm.hpp>
  14 #include <glm/gtx/transform.hpp>
  15 #include <glm/gtx/euler_angles.hpp>
  16 #include <glm/gtx/quaternion.hpp>
  17
  18 #include <com/sun/star/awt/Point.hpp>
  19 #include <boost/shared_array.hpp>
  20 #include <tools/gen.hxx>
  21
  22 #include <vcl/bitmapex.hxx>
  23
  24 #include <vector>
  25 #include <list>
  26 #include <map>
  27
  28 namespace chart {
  29
  30 namespace opengl3D {
  31
  32 const auto maxLights = 8;
  33
  34 struct PosVecf3
  35 {
  36     float x;
  37     float y;
  38     float z;
  39 };
  40
  41 typedef std::vector <glm::vec3> Vertices3D;
  42 typedef std::vector <glm::vec3> Normals3D;
  43
  44 // fields must match definition in GLSL shader file
  45 struct MaterialParameters
  46 {
  47     glm::vec4 ambient;
  48     glm::vec4 diffuse;
  49     glm::vec4 specular;
  50     glm::vec4 materialColor;
  51
  52     bool  twoSidesLighting;
  53     float shininess;
  54     float pad;
  55     float pad1;
  56 };
  57
  58 // fields must match definition in GLSL shader file
  59 struct LightSource
  60 {
  61     glm::vec4   lightColor;
  62     glm::vec4   positionWorldspace;
  63     float  lightPower;
  64     float  pad1;
  65     float  pad2;
  66     float  pad3;
  67 };
  68
  69 struct GlobalLights
  70 {
  71     int lightNum;
  72     glm::vec4 ambient;
  73     LightSource light[maxLights];
  74 };
  75
  76 struct Polygon3DInfo
  77 {
  78     bool lineOnly;
  79     float lineWidth;
  80     bool twoSidesLighting;
  81     long fillStyle;
  82     glm::vec4 polygonColor;
  83     glm::vec4 id;
  84     Vertices3D *vertices;
  85     Normals3D *normals;
  86     std::vector <Vertices3D *> verticesList;
  87     std::vector <Normals3D *> normalsList;
  88     MaterialParameters material;
  89 };
  90
  91 struct Extrude3DInfo
  92 {
  93     bool rounded;
  94     bool twoSidesLighting;
  95     glm::vec4 extrudeColor;
  96     glm::vec4 id;
  97     sal_uInt32 orgID;
  98     float xScale;
  99     float yScale;
 100     float zScale;
 101     float xTransform;
 102     float yTransform;
 103     float zTransform;
 104     glm::mat4 rotation;
 105     MaterialParameters material;
 106     int startIndex[5];
 107     int size[5];
 108     int reverse;
 109 };
 110
 111 struct CameraInfo
 112 {
 113     glm::vec3 cameraPos;
 114     glm::vec3 cameraOrg;
 115     glm::vec3 cameraUp;
 116
 117     CameraInfo():
 118         cameraUp(glm::vec3(0, 0, 1)) {}
 119 };
 120
 121 struct RoundBarMesh
 122 {
 123     float topThreshold;
 124     float bottomThreshold;
 125     int iMeshStartIndices;
 126     int iMeshSizes;
 127     int iElementStartIndices[5];
 128     int iElementSizes[5];
 129 };
 130
 131 struct PackedVertex{
 132     glm::vec3 position;
 133     glm::vec3 normal;
 134     bool operator<(const PackedVertex& that) const{
 135         return memcmp(this, &that, sizeof(PackedVertex))>0;
 136     };
 137 };
 138
 139 struct TextInfo
 140 {
 141     glm::vec4 id;
 142     sal_uInt32 uniqueId;
 143     GLuint texture;
 144     float vertex[12];
 145     glm::vec3 pos;
 146     glm::vec4 textColor;
 147 };
 148
 149 struct TextureArrayInfo
 150 {
 151     size_t subTextureNum;
 152     int textureArrayWidth;
 153     int textureArrayHeight;
 154     GLuint textureID;
 155
 156     TextureArrayInfo();
 157 };
 158
 159 struct TextInfoBatch
 160 {
 161     size_t batchNum;
 162     std::vector<glm::vec4> idList;
 163     std::vector<TextureArrayInfo> texture;
 164     std::vector<glm::vec3> vertexList;
 165     std::vector<glm::vec3> textureCoordList;
 166 };
 167
 168 struct BatchBarInfo
 169 {
 170     std::vector <glm::mat4> modelMatrixList;
 171     std::vector <glm::mat3> normalMatrixList;
 172     std::vector <glm::vec4> colorList;
 173     std::map<sal_uInt32, unsigned int> mapId2Color;
 174     glm::vec4 selectBarColor;
 175 };
 176
 177 class OpenGL3DRenderer
 178 {
 179 public:
 180     OpenGL3DRenderer();
 181     ~OpenGL3DRenderer();
 182
 183     void init();
 184     void Set3DSenceInfo(Color color, bool twoSidesLighting = true);
 185     void SetLightInfo(bool lightOn, Color color, const glm::vec4& direction);
 186     void AddShapePolygon3DObject(Color color, bool lineOnly, Color lineColor,
 187             long fillStyle, sal_uInt32 specular, sal_uInt32 nUniqueId);
 188     void EndAddShapePolygon3DObject();
 189     void AddPolygon3DObjectNormalPoint(float x, float y, float z);
 190     void EndAddPolygon3DObjectNormalPoint();
 191     void AddPolygon3DObjectPoint(float x, float y, float z);
 192     void EndAddPolygon3DObjectPoint();
 193     void AddShape3DExtrudeObject(bool roundedCorner, Color color, sal_uInt32 specular, const glm::mat4& modelMatrix, sal_uInt32 nUniqueId);
 194     void EndAddShape3DExtrudeObject();
 195     void SetSize(const Size& rSize);
 196     void SetCameraInfo(const glm::vec3& pos, const glm::vec3& direction, const glm::vec3& up);
 197     void CreateTextTexture(const boost::shared_array<sal_uInt8> &bitmapBuf,
 198                            const ::Size& rSizePixels,
 199                            const glm::vec3& vTopLeft, const glm::vec3& vTopRight,
 200                            const glm::vec3& vBottomRight, const glm::vec3& vBottomLeft,
 201                            sal_uInt32 nUniqueId);
 202     void CreateScreenTextTexture(const boost::shared_array<sal_uInt8> &bitmapBuf,
 203                                  const ::Size& rSizePixels, const glm::vec2& vTopLeft,
 204                                  const glm::vec2& vBottomRight, const glm::vec3& vPos, const glm::vec4& vScreenTextColor,
 205                                  sal_uInt32 nUniqueId);
 206     void ProcessUnrenderedShape(bool bNewScene);
 207
 208     void SetPickingMode(bool bPickingMode);
 209
 210     Color GetPixelColorFromPoint(long nX, long nY);
 211
 212     void ReleaseShapes();
 213     void ReleaseScreenTextShapes();
 214     void ReleaseTextTexture();
 215     void ReleaseScreenTextTexture();
 216     void StartClick(sal_uInt32 selectID);
 217     void EndClick();
 218     void SetScroll();
 219     void SetScrollSpeed(float scrollSpeed);
 220     void SetScrollDistance(float scrollDistance);
 221     void SetSceneEdge(float minCoordX, float maxCoordX);
 222     const glm::mat4& GetProjectionMatrix();
 223     const glm::mat4& GetViewMatrix();
 224     const glm::mat4& GetGlobalScaleMatrix();
 225     glm::mat4 GetDiffOfTwoCameras(const glm::vec3& rBeginPos, const glm::vec3& rEndPos, const glm::vec3& rBeginDirection, const glm::vec3& rEndDirection);
 226     glm::mat4 GetDiffOfTwoCameras(const glm::vec3& rEndPos, const glm::vec3& rEndDirection);
 227     void AddMatrixDiff(const glm::mat4& aMat);
 228     void ResetMatrixDiff();
 229 private:
 230     void MoveModelf( const PosVecf3& trans, const PosVecf3& angle, const PosVecf3& scale);
 231
 232     static void ClearBuffer();
 233     void RenderPolygon3DObject();
 234     void RenderLine3D(const Polygon3DInfo &polygon);
 235     void RenderPolygon3D(const Polygon3DInfo &polygon);
 236     void Init3DUniformBlock();
 237     void Update3DUniformBlock();
 238     void RenderExtrude3DObject();
 239     //add for text
 240     void RenderTextShape();
 241     void RenderScreenTextShape();
 242     void RenderExtrudeSurface(const Extrude3DInfo& extrude3D);
 243     void RenderExtrudeTopSurface(const Extrude3DInfo& extrude3D);
 244     void RenderExtrudeMiddleSurface(const Extrude3DInfo& extrude3D);
 245     void RenderExtrudeBottomSurface(const Extrude3DInfo& extrude3D);
 246     void RenderExtrudeFlatSurface(const Extrude3DInfo& extrude3D, int surIndex);
 247     void AddVertexData(GLuint vertexBuf);
 248     void AddNormalData(GLuint normalBuf);
 249     void AddIndexData(GLuint indexBuf);
 250     void RenderNonRoundedBar(const Extrude3DInfo& extrude3D);
 251     static bool GetSimilarVertexIndex(PackedVertex const & packed,
 252         std::map<PackedVertex,unsigned short> & VertexToOutIndex,
 253         unsigned short & result
 254         );
 255     static void SetVertex(PackedVertex const &packed,
 256         std::map<PackedVertex,unsigned short> &VertexToOutIndex,
 257         std::vector<glm::vec3> &vertex,
 258         std::vector<glm::vec3> &normal,
 259         std::vector<unsigned short> &indeices);
 260     void CreateActualRoundedCube(float fRadius, int iSubDivY, int iSubDivZ, float width, float height, float depth);
 261     static int GenerateRoundCornerBar(std::vector<glm::vec3> &vertices, std::vector<glm::vec3> &normals, float fRadius, int iSubDivY,
 262                                int iSubDivZ, float width, float height, float depth);
 263     void CreateSceneBoxView();
 264
 265     void ReleasePolygonShapes();
 266     void ReleaseExtrude3DShapes();
 267     void ReleaseTextShapes();
 268     void ReleaseBatchBarInfo();
 269     void GetBatchBarsInfo();
 270     void GetBatchTopAndFlatInfo(const Extrude3DInfo &extrude3D);
 271     void GetBatchMiddleInfo(const Extrude3DInfo &extrude3D);
 272     void InitBatch3DUniformBlock();
 273     void UpdateBatch3DUniformBlock();
 274     void RenderBatchBars(bool bNewScene);
 275     void RenderTextShapeBatch();
 276     void ReleaseTextShapesBatch();
 277     void CreateTextTextureSingle(const boost::shared_array<sal_uInt8> &bitmapBuf,
 278                            const ::Size& rSizePixels,
 279                            const glm::vec3& vTopLeft, const glm::vec3& vTopRight,
 280                            const glm::vec3& vBottomRight, const glm::vec3& vBottomLeft,
 281                            sal_uInt32 nUniqueId);
 282     void CreateTextTextureBatch(const boost::shared_array<sal_uInt8> &bitmapBuf,
 283                        const ::Size& rSizePixels,
 284                        const glm::vec3& vTopLeft, const glm::vec3& vTopRight,
 285                        const glm::vec3& vBottomRight, const glm::vec3& vBottomLeft,
 286                        sal_uInt32 nUniqueId);
 287     void SetHighLightBar(BatchBarInfo &barInfo);
 288     void DisableHighLightBar(BatchBarInfo &barInfo);
 289     void CalcScrollMoveMatrix(bool bNewScene);
 290 private:
 291
 292     struct ShaderResources
 293     {
 294         bool m_b330Support;
 295         bool m_bScrollFlag;
 296         // 3DProID
 297         GLint m_3DProID;
 298         GLint m_3DProjectionID;
 299         GLint m_3DViewID;
 300         GLint m_3DModelID;
 301         GLint m_3DNormalMatrixID;
 302         GLint m_3DVertexID;
 303         GLint m_3DNormalID;
 304         GLint m_3DMinCoordXID;
 305         GLint m_3DMaxCoordXID;
 306         GLint m_3DUndrawID;
 307         //300 version;
 308         GLint m_3DMaterialAmbientID;
 309         GLint m_3DMaterialDiffuseID;
 310         GLint m_3DMaterialSpecularID;
 311         GLint m_3DMaterialColorID;
 312         GLint m_3DMaterialTwoSidesID;
 313         GLint m_3DMaterialShininessID;
 314         GLint m_3DLightColorID;
 315         GLint m_3DLightPosID;
 316         GLint m_3DLightPowerID;
 317         GLint m_3DLightNumID;
 318         GLint m_3DLightAmbientID;
 319
 320         // TextProID
 321         GLint m_TextProID;
 322         GLint m_TextMatrixID;
 323         GLint m_TextVertexID;
 324         GLint m_TextTexCoordID;
 325         GLint m_TextTexID;
 326
 327         // ScreenTextProID
 328         GLint m_ScreenTextProID;
 329         GLint m_ScreenTextVertexID;
 330         GLint m_ScreenTextTexCoordID;
 331         GLint m_ScreenTextTexID;
 332         GLint m_ScreenTextColorID;
 333
 334         // CommonProID
 335         GLint m_CommonProID;
 336         GLint m_2DVertexID;
 337         GLint m_2DColorID;
 338         GLint m_MatrixID;
 339
 340         // Batch render
 341         GLint m_3DBatchProID;
 342         GLint m_3DBatchProjectionID;
 343         GLint m_3DBatchViewID;
 344         GLint m_3DBatchModelID;
 345         GLint m_3DBatchNormalMatrixID;
 346         GLint m_3DBatchVertexID;
 347         GLint m_3DBatchNormalID;
 348         GLint m_3DBatchColorID;
 349         GLint m_3DBatchTransMatrixID;
 350         GLint m_3DBatchMinCoordXID;
 351         GLint m_3DBatchMaxCoordXID;
 352         GLint m_3DBatchUndrawID;
 353
 354         //Batch render text
 355         bool mbTexBatchSupport;
 356         GLint m_BatchTextProID;
 357         GLint m_BatchTextMatrixID;
 358         GLint m_BatchTextVertexID;
 359         GLint m_BatchTextTexCoordID;
 360         GLint m_BatchTextTexID;
 361
 362         ShaderResources();
 363         ~ShaderResources();
 364
 365         void LoadShaders();
 366     };
 367
 368     struct PickingShaderResources
 369     {
 370         // CommonProID
 371         GLint m_CommonProID;
 372         GLint m_2DVertexID;
 373         GLint m_2DColorID;
 374         GLint m_MatrixID;
 375         GLint m_ModelID;
 376         GLint m_MinCoordXID;
 377         GLint m_MaxCoordXID;
 378         PickingShaderResources();
 379         ~PickingShaderResources();
 380
 381         void LoadShaders();
 382     };
 383
 384     ShaderResources maResources;
 385     PickingShaderResources maPickingResources;
 386
 387     // Model matrix : an identity matrix (model will be at the origin
 388     glm::mat4 m_Model;
 389
 390     sal_Int32 m_iWidth;
 391
 392     sal_Int32 m_iHeight;
 393
 394     GlobalLights m_LightsInfo;
 395
 396     CameraInfo m_CameraInfo;
 397
 398     Polygon3DInfo m_Polygon3DInfo;
 399
 400     std::vector <Polygon3DInfo> m_Polygon3DInfoList;
 401
 402     glm::mat4 m_3DProjection;
 403
 404     glm::mat4 m_3DView;
 405
 406     glm::mat4 m_3DMVP;
 407
 408     GLuint m_3DUBOBuffer;
 409
 410     GLint m_3DActualSizeLight;
 411
 412     GLuint m_NormalBuffer;
 413
 414     GLuint m_VertexBuffer;
 415
 416     Extrude3DInfo m_Extrude3DInfo;
 417
 418     std::vector <Extrude3DInfo> m_Extrude3DList;
 419
 420     GLuint m_CubeVertexBuf;
 421
 422     GLuint m_CubeElementBuf;
 423
 424     GLuint m_CubeNormalBuf;
 425
 426     GLuint m_BoundBox;
 427     GLuint m_BoundBoxNormal;
 428      // add for text
 429     std::vector <TextInfo> m_TextInfoList;
 430     std::vector <TextInfo> m_ScreenTextInfoList;
 431     GLuint m_TextTexCoordBuf;
 432     GLuint m_TextTexCoordBufBatch;
 433
 434     std::vector<glm::vec3> m_Vertices;
 435
 436     std::vector<glm::vec3> m_Normals;
 437
 438     std::vector<unsigned short> m_Indices;
 439
 440     RoundBarMesh m_RoundBarMesh;
 441
 442     GLuint m_RenderVertexBuf;
 443
 444     GLuint m_RenderTexCoordBuf;
 445
 446     float m_fViewAngle;
 447
 448     bool mbPickingMode;
 449
 450     GLuint mnPickingFbo;
 451     GLuint mnPickingRboDepth;
 452     GLuint mnPickingRboColor;
 453
 454     BatchBarInfo m_BarSurface[3];
 455     GLuint m_BatchModelMatrixBuf;
 456     GLuint m_BatchNormalMatrixBuf;
 457     GLuint m_BatchColorBuf;
 458     MaterialParameters m_Batchmaterial;
 459     GLuint m_Batch3DUBOBuffer;
 460     GLint m_Batch3DActualSizeLight;
 461
 462     glm::mat4 m_GlobalScaleMatrix;
 463     TextInfoBatch m_TextInfoBatch;
 464     //for 3.0 version
 465     int m_iLightNum;
 466     glm::vec4 m_Ambient;
 467     glm::vec4 m_LightColor[maxLights];
 468     glm::vec4 m_PositionWorldspace[maxLights];
 469     float m_fLightPower[maxLights];
 470     //for 3.0 end
 471     std::vector<GLuint> m_Texturelist;
 472     std::vector<GLuint> m_ScreenTexturelist;
 473     bool m_bHighLighting;
 474     sal_uInt32 m_uiSelectID;
 475     float m_fScrollSpeed;
 476     float m_fScrollDistance;
 477     float m_fMinCoordX;
 478     float m_fMaxCoordX;
 479     float m_fCurDistance;
 480     glm::mat4 m_ScrollMoveMatrix;
 481     bool m_bUndrawFlag;
 482     glm::mat4 m_matDiff;
 483 };
 484
 485 }
 486
 487 }
 488
 489 #endif
 490
 491 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */