1 #ifndef COMMON_RENDER_INTERFACE_H
2 #define COMMON_RENDER_INTERFACE_H
3
4 struct CommonCameraInterface;
5
6 enum
7 {
8 B3_GL_TRIANGLES = 1,
9 B3_GL_POINTS
10 };
11
12 enum
13 {
14 B3_INSTANCE_TRANSPARANCY = 1,
15 B3_INSTANCE_TEXTURE = 2,
16 B3_INSTANCE_DOUBLE_SIDED = 4,
17 };
18
19 enum
20 {
21 B3_DEFAULT_RENDERMODE = 1,
22 //B3_WIREFRAME_RENDERMODE,
23 B3_CREATE_SHADOWMAP_RENDERMODE,
24 B3_USE_SHADOWMAP_RENDERMODE,
25 B3_USE_SHADOWMAP_RENDERMODE_REFLECTION,
26 B3_USE_SHADOWMAP_RENDERMODE_REFLECTION_PLANE,
27 B3_USE_PROJECTIVE_TEXTURE_RENDERMODE,
28 B3_SEGMENTATION_MASK_RENDERMODE,
29 };
30
31 struct GfxVertexFormat0
32 {
33 float x, y, z, w;
34 float unused0, unused1, unused2, unused3;
35 float u, v;
36 };
37
38 struct GfxVertexFormat1
39 {
40 float x, y, z, w;
41 float nx, ny, nz;
42 float u, v;
43 };
44
45 struct CommonRenderInterface
46 {
~CommonRenderInterfaceCommonRenderInterface47 virtual ~CommonRenderInterface() {}
48 virtual void init() = 0;
49 virtual void updateCamera(int upAxis) = 0;
50 virtual void removeAllInstances() = 0;
51 virtual void removeGraphicsInstance(int instanceUid) = 0;
52
53 virtual const CommonCameraInterface* getActiveCamera() const = 0;
54 virtual CommonCameraInterface* getActiveCamera() = 0;
55 virtual void setActiveCamera(CommonCameraInterface* cam) = 0;
56
57 virtual void setLightPosition(const float lightPos[3]) = 0;
58 virtual void setLightPosition(const double lightPos[3]) = 0;
59 virtual void setBackgroundColor(const double rgbBackground[3]) = 0;
60
61 virtual void setShadowMapResolution(int shadowMapResolution) = 0;
62 virtual void setShadowMapIntensity(double shadowMapIntensity) = 0;
63
64 virtual void setShadowMapWorldSize(float worldSize) = 0;
65
setProjectiveTextureMatricesCommonRenderInterface66 virtual void setProjectiveTextureMatrices(const float viewMatrix[16], const float projectionMatrix[16]){};
setProjectiveTextureCommonRenderInterface67 virtual void setProjectiveTexture(bool useProjectiveTexture){};
68
69 virtual void renderScene() = 0;
70 virtual void renderSceneInternal(int renderMode = B3_DEFAULT_RENDERMODE){};
71 virtual int getScreenWidth() = 0;
72 virtual int getScreenHeight() = 0;
73
74 virtual void resize(int width, int height) = 0;
75
76 virtual int registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling) = 0;
77 virtual int registerGraphicsInstance(int shapeIndex, const double* position, const double* quaternion, const double* color, const double* scaling) = 0;
78 virtual void drawLines(const float* positions, const float color[4], int numPoints, int pointStrideInBytes, const unsigned int* indices, int numIndices, float pointDrawSize) = 0;
79 virtual void drawLine(const float from[4], const float to[4], const float color[4], float lineWidth) = 0;
80 virtual void drawLine(const double from[4], const double to[4], const double color[4], double lineWidth) = 0;
81 virtual void drawPoint(const float* position, const float color[4], float pointDrawSize) = 0;
82 virtual void drawPoint(const double* position, const double color[4], double pointDrawSize) = 0;
83 virtual void drawTexturedTriangleMesh(float worldPosition[3], float worldOrientation[4], const float* vertices, int numvertices, const unsigned int* indices, int numIndices, float color[4], int textureIndex = -1, int vertexLayout = 0) = 0;
84
85 virtual int registerShape(const float* vertices, int numvertices, const int* indices, int numIndices, int primitiveType = B3_GL_TRIANGLES, int textureIndex = -1) = 0;
86 virtual void updateShape(int shapeIndex, const float* vertices, int numVertices) = 0;
87
88 virtual int registerTexture(const unsigned char* texels, int width, int height, bool flipPixelsY = true) = 0;
89 virtual void updateTexture(int textureIndex, const unsigned char* texels, bool flipPixelsY = true) = 0;
90 virtual void activateTexture(int textureIndex) = 0;
replaceTextureCommonRenderInterface91 virtual void replaceTexture(int shapeIndex, int textureIndex){};
92 virtual void removeTexture(int textureIndex) = 0;
93
setPlaneReflectionShapeIndexCommonRenderInterface94 virtual void setPlaneReflectionShapeIndex(int index) {}
95
getShapeIndexFromInstanceCommonRenderInterface96 virtual int getShapeIndexFromInstance(int srcIndex) { return -1; }
97
98 virtual bool readSingleInstanceTransformToCPU(float* position, float* orientation, int srcIndex) = 0;
99
100 virtual void writeSingleInstanceTransformToCPU(const float* position, const float* orientation, int srcIndex) = 0;
101 virtual void writeSingleInstanceTransformToCPU(const double* position, const double* orientation, int srcIndex) = 0;
102 virtual void writeSingleInstanceColorToCPU(const float* color, int srcIndex) = 0;
103 virtual void writeSingleInstanceColorToCPU(const double* color, int srcIndex) = 0;
104 virtual void writeSingleInstanceScaleToCPU(const float* scale, int srcIndex) = 0;
105 virtual void writeSingleInstanceScaleToCPU(const double* scale, int srcIndex) = 0;
106 virtual void writeSingleInstanceSpecularColorToCPU(const double* specular, int srcIndex) = 0;
107 virtual void writeSingleInstanceSpecularColorToCPU(const float* specular, int srcIndex) = 0;
108 virtual void writeSingleInstanceFlagsToCPU(int flags, int srcIndex) = 0;
109
110 virtual int getTotalNumInstances() const = 0;
111
112 virtual void writeTransforms() = 0;
113
114 virtual void clearZBuffer() = 0;
115
116 //This is internal access to OpenGL3+ features, mainly used for OpenCL-OpenGL interop
117 //Only the GLInstancingRenderer supports it, just return 0 otherwise.
118 virtual struct GLInstanceRendererInternalData* getInternalData() = 0;
119 };
120
121 template <typename T>
projectWorldCoordToScreen(T objx,T objy,T objz,const T modelMatrix[16],const T projMatrix[16],const int viewport[4],T * winx,T * winy,T * winz)122 inline int projectWorldCoordToScreen(T objx, T objy, T objz,
123 const T modelMatrix[16],
124 const T projMatrix[16],
125 const int viewport[4],
126 T* winx, T* winy, T* winz)
127 {
128 int i;
129 T in2[4];
130 T tmp[4];
131
132 in2[0] = objx;
133 in2[1] = objy;
134 in2[2] = objz;
135 in2[3] = T(1.0);
136
137 for (i = 0; i < 4; i++)
138 {
139 tmp[i] = in2[0] * modelMatrix[0 * 4 + i] + in2[1] * modelMatrix[1 * 4 + i] +
140 in2[2] * modelMatrix[2 * 4 + i] + in2[3] * modelMatrix[3 * 4 + i];
141 }
142
143 T out[4];
144 for (i = 0; i < 4; i++)
145 {
146 out[i] = tmp[0] * projMatrix[0 * 4 + i] + tmp[1] * projMatrix[1 * 4 + i] + tmp[2] * projMatrix[2 * 4 + i] + tmp[3] * projMatrix[3 * 4 + i];
147 }
148
149 if (out[3] == T(0.0))
150 return 0;
151 out[0] /= out[3];
152 out[1] /= out[3];
153 out[2] /= out[3];
154 /* Map x, y and z to range 0-1 */
155 out[0] = out[0] * T(0.5) + T(0.5);
156 out[1] = out[1] * T(0.5) + T(0.5);
157 out[2] = out[2] * T(0.5) + T(0.5);
158
159 /* Map x,y to viewport */
160 out[0] = out[0] * viewport[2] + viewport[0];
161 out[1] = out[1] * viewport[3] + viewport[1];
162
163 *winx = out[0];
164 *winy = out[1];
165 *winz = out[2];
166 return 1;
167 }
168
169 #endif //COMMON_RENDER_INTERFACE_H
170