comparison: src/GLCompiler.h
src/GLCompiler.h
- changeset 672
- 0925d25ea32c
- child 673
- 8e6f5b3f9d38
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| 671:14a6da9c0bfe | 672:0925d25ea32c |
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| 1 #ifndef LDFORGE_GLDATA_H | |
| 2 #define LDFORGE_GLDATA_H | |
| 3 | |
| 4 #include "types.h" | |
| 5 #include "gldraw.h" | |
| 6 #include <QMap> | |
| 7 #include <QRgb> | |
| 8 | |
| 9 /* ============================================================================= | |
| 10 * ----------------------------------------------------------------------------- | |
| 11 * GLCompiler | |
| 12 * | |
| 13 * This class manages vertex arrays for the GL renderer, compiling vertices into | |
| 14 * VAO-readable triangles which can be requested with getMergedBuffer. | |
| 15 * | |
| 16 * There are 5 main array types: | |
| 17 * - the normal polygon array, for triangles | |
| 18 * - edge line array, for lines | |
| 19 * - BFC array, this is the same as the normal polygon array except that the | |
| 20 * - polygons are listed twice, once normally and green and once reversed | |
| 21 * - and red, this allows BFC red/green view. | |
| 22 * - Picking array, this is the samea s the normal polygon array except the | |
| 23 * - polygons are compiled with their index color, this way the picking | |
| 24 * - method is capable of determining which object was selected by pixel | |
| 25 * - color. | |
| 26 * - Edge line picking array, the pick array version of the edge line array. | |
| 27 * | |
| 28 * There are also these same 5 arrays for every LDObject compiled. The main | |
| 29 * arrays are generated on demand from the ones in the current file's | |
| 30 * LDObjects and stored in cache for faster renmm dering. | |
| 31 * | |
| 32 * The nested Array class contains a vector-like buffer of the Vertex structs, | |
| 33 * these structs are the VAOs that get passed to the renderer. | |
| 34 */ | |
| 35 | |
| 36 class GLCompiler | |
| 37 { | |
| 38 public: | |
| 39 enum ColorType | |
| 40 { | |
| 41 Normal, | |
| 42 BFCFront, | |
| 43 BFCBack, | |
| 44 PickColor, | |
| 45 }; | |
| 46 | |
| 47 struct CompiledTriangle | |
| 48 { | |
| 49 ::Vertex verts[3]; | |
| 50 uint8 numVerts; // 2 if a line | |
| 51 uint32 rgb; // Color of this poly normally | |
| 52 uint32 pickrgb; // Color of this poly while picking | |
| 53 bool isCondLine; // Is this a conditional line? | |
| 54 LDObject* obj; // Pointer to the object this poly represents | |
| 55 }; | |
| 56 | |
| 57 struct Vertex | |
| 58 { | |
| 59 float x, y, z; | |
| 60 uint32 color; | |
| 61 float pad[4]; | |
| 62 }; | |
| 63 | |
| 64 using PolygonList = QList<CompiledTriangle>; | |
| 65 using Array = QVector<GLCompiler::Vertex>; | |
| 66 | |
| 67 GLCompiler(); | |
| 68 ~GLCompiler(); | |
| 69 void setFile (LDDocument* file); | |
| 70 void compileDocument(); | |
| 71 void forgetObject (LDObject* obj); | |
| 72 void initObject (LDObject* obj); | |
| 73 const Array* getMergedBuffer (GL::VAOType type); | |
| 74 QColor getObjectColor (LDObject* obj, ColorType list) const; | |
| 75 void needMerge(); | |
| 76 void stageForCompilation (LDObject* obj); | |
| 77 | |
| 78 static uint32 getColorRGB (const QColor& color); | |
| 79 | |
| 80 private: | |
| 81 void compilePolygon (LDObject* drawobj, LDObject* trueobj, PolygonList& data); | |
| 82 void compileObject (LDObject* obj); | |
| 83 void compileSubObject (LDObject* obj, LDObject* topobj, PolygonList& data); | |
| 84 Array* postprocess (const GLCompiler::CompiledTriangle& i, GLRenderer::VAOType type); | |
| 85 | |
| 86 QMap<LDObject*, Array*> m_objArrays; | |
| 87 Array m_mainArrays[GL::ENumArrays]; | |
| 88 LDDocument* m_file; | |
| 89 bool m_changed[GL::ENumArrays]; | |
| 90 LDObjectList m_staged; // Objects that need to be compiled | |
| 91 }; | |
| 92 | |
| 93 extern GLCompiler g_vertexCompiler; | |
| 94 | |
| 95 #endif // LDFORGE_GLDATA_H |
