Open Source Tomb Raider Engine
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  1. /*!
  2. * \file include/Mesh.h
  3. * \brief OpenGL Mesh
  4. *
  5. * \author Mongoose
  6. *
  7. * \todo Unify the parallel systems here, arrays and the allocate/set
  8. */
  9. #ifndef _MESH_H_
  10. #define _MESH_H_
  11. #include "loader/Loader.h"
  12. /*!
  13. * \brief OpenGL Mesh
  14. */
  15. class Mesh {
  16. public:
  17. struct rectangle_t {
  18. struct vertex_t a, b, c, d;
  19. uint16_t texture;
  20. };
  21. Mesh();
  22. ~Mesh();
  23. void drawAlpha();
  24. void drawSolid();
  25. // Warning: texture is not the GL texture id,
  26. // it is an index into the object texture list!
  27. void addTexturedRectangle(struct vertex_t a, struct vertex_t b,
  28. struct vertex_t c, struct vertex_t d, uint16_t texture);
  29. void addTexturedTriangle(struct vertex_t a, struct vertex_t b,
  30. struct vertex_t c, uint16_t texture);
  31. std::vector<struct rectangle_t> texturedRectangles;
  32. std::vector<struct rectangle_t> coloredRectangles;
  33. std::vector<struct rectangle_t> texturedTriangles;
  34. std::vector<struct rectangle_t> coloredTriangles;
  35. // Old API
  36. typedef enum {
  37. MeshModeSolid,
  38. MeshModeWireframe,
  39. MeshModeTexture,
  40. MeshModeMultiTexture
  41. } MeshMode;
  42. typedef enum {
  43. fMesh_UseVertexArray = (1 << 0)
  44. } MeshFlags;
  45. typedef struct {
  46. int texture;
  47. #ifdef MULTITEXTURE
  48. int bumpmap;
  49. #endif
  50. unsigned int cnum_triangles;
  51. unsigned int cnum_alpha_triangles;
  52. unsigned int num_texcoors;
  53. float** texcoors; // 2D
  54. unsigned int num_texcoors2;
  55. float** texcoors2; // 2D
  56. //! Arrays of triangle indices sorted by texture
  57. unsigned int num_triangles;
  58. unsigned int* triangles; //!< ABCABCABC...
  59. //! Arrays of alpha triangle indices sorted by texture
  60. unsigned int num_alpha_triangles;
  61. unsigned int* alpha_triangles; //!< ABCABCABC...
  62. } tris_t;
  63. typedef struct {
  64. int texture;
  65. #ifdef MULTITEXTURE
  66. int bumpmap;
  67. #endif
  68. unsigned int cnum_quads;
  69. unsigned int cnum_alpha_quads;
  70. unsigned int num_texcoors;
  71. float** texcoors; // 2D
  72. unsigned int num_texcoors2;
  73. float** texcoors2; // 2D
  74. //! Arrays of rectangle indices sorted by texture
  75. unsigned int num_quads;
  76. unsigned int* quads; //!< ABCDABCDABCD...
  77. //! Arrays of alpha rectangle indices sorted by texture
  78. unsigned int num_alpha_quads;
  79. unsigned int* alpha_quads; //!< ABCDABCDABCD...
  80. } rect_t;
  81. void drawAlphaOld();
  82. void drawSolidOld();
  83. void allocateColors(unsigned int n);
  84. void allocateNormals(unsigned int n);
  85. void allocateRectangles(unsigned int n);
  86. void allocateTriangles(unsigned int n);
  87. void allocateVertices(unsigned int n);
  88. void bufferColorArray(unsigned int colorCount, float* colors);
  89. void bufferNormalArray(unsigned int normalCount, float* normals);
  90. void bufferTriangles(unsigned int count,
  91. unsigned int* indices, float* texCoords,
  92. int* textures, unsigned int* flags);
  93. void bufferVertexArray(unsigned int vertexCount, float* vertices);
  94. void setColor(unsigned int index, float r, float g, float b, float a);
  95. void setColor(unsigned int index, float rgba[4]);
  96. void setNormal(unsigned int index, float i, float j, float k);
  97. void setVertex(unsigned int index, float x, float y, float z);
  98. #if 0
  99. void sortFacesByTexture();
  100. void addFace(int textureIndex, int textureIndexB, unsigned int flags,
  101. unsigned int vertexIndexCount, float* vertexIndices);
  102. void addTexTiledFace(int textureIndex, int textureIndexB,
  103. unsigned int flags, unsigned int indexCount,
  104. float* vertexIndices, float* texcoords);
  105. void bufferTexcoords(unsigned int texcoordCount, float* texcoords);
  106. void duplicateArraysForTexTiledTexcoords();
  107. #endif
  108. unsigned int mFlags;
  109. MeshMode mMode;
  110. unsigned int mNumVertices;
  111. float** mVertices; //!< XYZ
  112. unsigned int mNumNormals;
  113. float** mNormals; //!< IJK
  114. unsigned int mNumColors;
  115. float** mColors; //!< RGBA
  116. unsigned int mNumTris;
  117. tris_t* mTris;
  118. unsigned int mNumQuads;
  119. rect_t* mQuads;
  120. unsigned int mTriangleCount;
  121. int* mTriangleTextures;
  122. unsigned int* mTriangleIndices;
  123. unsigned int* mTriangleFlags;
  124. float* mTriangleTexCoordArray;
  125. float* mVertexArray;
  126. float* mNormalArray;
  127. float* mColorArray;
  128. };
  129. #endif