chart2/source/view/main/OpenGLRender.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_MAIN_OPENGLRENDER_HXX
  11 #define INCLUDED_CHART2_SOURCE_VIEW_MAIN_OPENGLRENDER_HXX
  12
  13 #include <vcl/bitmapex.hxx>
  14 #include <com/sun/star/drawing/HomogenMatrix3.hpp>
  15 #include <com/sun/star/drawing/XDrawPage.hpp>
  16 #include <vcl/font.hxx>
  17 #include <vcl/opengl/OpenGLContext.hxx>
  18 #include <boost/shared_array.hpp>
  19
  20 // Include GLM
  21 #include <list>
  22 #include <map>
  23 #include "glm/glm.hpp"
  24 #include "glm/gtx/transform.hpp"
  25 #include "glm/gtx/euler_angles.hpp"
  26 #include "glm/gtx/quaternion.hpp"
  27
  28 #define DEBUG_POSITIONING 0
  29
  30 struct PosVecf3
  31 {
  32     float x;
  33     float y;
  34     float z;
  35 };
  36
  37 struct Bubble2DPointList
  38 {
  39     float x;
  40     float y;
  41     float xScale;
  42     float yScale;
  43 };
  44
  45 typedef std::vector<GLfloat> Bubble2DCircle;
  46
  47 struct RectanglePointList
  48 {
  49     float points[12];
  50 };
  51
  52 struct TextInfo
  53 {
  54     GLuint texture;
  55     double rotation;
  56     float vertex[12];
  57     float nDx;
  58     float nDy;
  59 };
  60
  61 typedef std::vector<GLfloat> PointList;
  62
  63 // for 3D, use vector to save the points
  64
  65 class OpenGLRender
  66 {
  67 public:
  68     OpenGLRender();
  69     ~OpenGLRender();
  70     int InitOpenGL();
  71     int MoveModelf(const PosVecf3& trans, const PosVecf3& angle, const PosVecf3& scale);
  72     void SetSize(int width, int height);
  73     void SetSizePixel(int width, int height);
  74     void Release();
  75     int RenderLine2FBO(int wholeFlag);
  76     int SetLine2DShapePoint(float x, float y, int listLength);
  77     void SetLine2DColor(sal_uInt8 r, sal_uInt8 g, sal_uInt8 b, sal_uInt8 nAlpha);
  78     void SetLine2DWidth(int width);
  79     void SetColor(sal_uInt32 color, sal_uInt8 nAlpha);
  80     int Bubble2DShapePoint(float x, float y, float directionX, float directionY);
  81     int RenderBubble2FBO(int wholeFlag);
  82
  83     void prepareToRender();
  84
  85     int RenderRectangleShape(bool bBorder, bool bFill);
  86     int RectangleShapePoint(float x, float y, float directionX, float directionY);
  87
  88     int CreateTextTexture(const boost::shared_array<sal_uInt8> &rPixels,
  89                           const ::Size &aPixelSize,
  90                           const css::awt::Point&,
  91                           const css::awt::Size& aSize,
  92                           long rotation,
  93                           const css::drawing::HomogenMatrix3& rTrans);
  94     int CreateTextTexture(const BitmapEx& rBitmapEx,
  95             const css::awt::Point& aPos, const css::awt::Size& aSize,
  96             long rotation, const css::drawing::HomogenMatrix3& rTrans);
  97     int CreateTextTexture(::rtl::OUString const &textValue, vcl::Font aFont, long fontColor, css::awt::Point aPos, css::awt::Size aSize, long rotation);
  98     int RenderTextShape();
  99
 100     int SetArea2DShapePoint(float x, float y, int listLength);
 101     int RenderArea2DShape();
 102     void SetChartTransparencyGradient(long transparencyGradient);
 103
 104     void GeneratePieSegment2D(double, double, double, double);
 105     int RenderPieSegment2DShape(float, float, float);
 106
 107     int RenderSymbol2DShape(float, float, float, float, sal_Int32);
 108 #if DEBUG_POSITIONING
 109     void renderDebug();
 110 #endif
 111
 112     void SetBackGroundColor(sal_uInt32 color1, sal_uInt32 color2, sal_uInt8 nAlpha);
 113
 114 private:
 115 #if 0
 116         //for performance
 117     double m_dFreq;
 118 #endif
 119     int m_iWidth;
 120
 121     int m_iHeight;
 122
 123 private:
 124     int Create2DCircle(int detail);
 125 private:
 126     // Projection matrix : default 45 degree Field of View, 4:3 ratio, display range : 0.1 unit <-> 100 units
 127     glm::mat4 m_Projection;
 128     // Camera matrix
 129     glm::mat4 m_View;
 130     // Model matrix : an identity matrix (model will be at the origin
 131     glm::mat4 m_Model;
 132     // Our ModelViewProjection : multiplication of our 3 matrices
 133     glm::mat4 m_MVP;
 134 #if 0
 135     GLint m_RenderProID;
 136 #endif
 137     glm::vec4 m_ClearColor;
 138
 139     GLuint m_VertexBuffer;
 140
 141     GLuint m_ColorBuffer;
 142
 143     GLint m_MatrixID;
 144 #if 0
 145     GLint m_RenderVertexID;
 146
 147     GLint m_RenderTexCoordID;
 148
 149     GLint m_RenderTexID;
 150 #endif
 151     GLuint m_RenderVertexBuf;
 152
 153     GLuint m_RenderTexCoordBuf;
 154
 155     PointList m_Line2DPointList;
 156
 157     float m_fLineWidth;
 158
 159     std::list <PointList> m_Line2DShapePointList;
 160
 161     glm::vec4 m_2DColor;
 162
 163     Bubble2DCircle m_Bubble2DCircle;
 164
 165     std::list <Bubble2DPointList> m_Bubble2DShapePointList;
 166     GLint m_CommonProID;
 167     GLint m_2DVertexID;
 168     GLint m_2DColorID;
 169
 170     float m_fZStep;
 171
 172     std::list <RectanglePointList> m_RectangleShapePointList;
 173     // add for text
 174     std::list <TextInfo> m_TextInfoList;
 175     GLint m_TextProID;
 176     GLint m_TextMatrixID;
 177     GLint m_TextVertexID;
 178     GLint m_TextTexCoordID;
 179     GLuint m_TextTexCoordBuf;
 180     GLint m_TextTexID;
 181
 182     PointList m_Area2DPointList;
 183     std::list <PointList> m_Area2DShapePointList;
 184
 185     GLint m_BackgroundProID;
 186     GLint m_BackgroundMatrixID;
 187     GLint m_BackgroundVertexID;
 188     GLint m_BackgroundColorID;
 189
 190     float m_BackgroundColor[16];
 191
 192     std::list <PointList> m_PieSegment2DShapePointList;
 193     PointList m_Symbol2DPointList;
 194     std::list<PointList> m_Symbol2DShapePointList;
 195
 196     GLuint m_SymbolProID;
 197     GLuint m_SymbolVertexID;
 198     GLuint m_SymbolMatrixID;
 199     GLuint m_SymbolColorID;
 200     GLuint m_SymbolShapeID;
 201
 202 #if DEBUG_POSITIONING
 203     GLuint m_DebugProID;
 204     GLuint m_DebugVertexID;
 205     GLuint m_DebugColorID;
 206 #endif
 207 };
 208
 209 #endif // INCLUDED_CHART2_SOURCE_VIEW_MAIN_OPENGLRENDER_HXX
 210
 211 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */