1 | #ifndef UTIL_OPENGL_H_
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2 | #define UTIL_OPENGL_H_
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3 |
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4 | #include <qstring.h>
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5 | #include <qrect.h>
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6 | #include <vector>
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7 |
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8 | #define GL_GLEXT_PROTOTYPES
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9 | #define GLX_GLXEXT_PROTOTYPES
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10 | #define XMD_H 1
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11 | #include <GL/glx.h>
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12 | #include <GL/gl.h>
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13 | #undef GLX_ARB_get_proc_address
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14 | #include <GL/glxext.h>
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15 | #include <GL/glext.h>
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16 |
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17 | typedef enum GLEXTS
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18 | {
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19 | SUPP_NONE = 0x00,
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20 | SUPP_RECT = 0x01,
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21 | SUPP_PROG = 0x02,
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22 | SUPP_FBUF = 0x04
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23 | };
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24 |
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25 | class OpenglVideo;
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26 |
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27 | class OpenglContext
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28 | {
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29 | public:
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30 |
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31 | friend class OpenglVideo;
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32 |
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33 | OpenglContext();
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34 | ~OpenglContext();
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35 | bool Create(Window window, int width, int height, bool visible);
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36 | void Init(void);
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37 | void MakeCurrent(bool current);
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38 | void SwapBuffers(void);
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39 | bool TextureSupport(void) { return m_supported & SUPP_RECT; };
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40 | bool FragProgSupport(void) { return m_supported & SUPP_PROG; };
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41 | bool FrameBufSupport(void) { return m_supported & SUPP_FBUF; };
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42 | GLint GetMaxTexSize(void) { return m_max_tex_size; };
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43 | Display* GetDisplay(void) { return m_display; };
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44 | int GetScreenNum(void) { return m_screen_num; };
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45 | Window GetWindow(void) { return m_window; };
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46 | void CreateTexture(GLuint *tex);
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47 | bool SetupTexture(QSize size, GLuint *tex, int filt);
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48 | void SetupTextureFilters(GLuint *tex, int filt);
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49 | void DeleteTexture(GLuint *tex);
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50 | bool CreateProgram(QString *program, GLuint *prog);
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51 | void DeleteProgram(GLuint *prog);
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52 | bool CreateFrameBuffer(GLuint *buf, GLuint *tex, int width, int height);
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53 | void DeleteFrameBuffer(GLuint *buf);
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54 | void EnableTextures(void);
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55 |
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56 | private:
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57 | int EnableTextureRects(void);
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58 | int EnableFragProgs(void);
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59 | int EnableFrameBufs(void);
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60 | void DeleteTextures(void);
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61 | void DeletePrograms(void);
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62 | void DeleteFrameBuffers(void);
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63 | bool CheckGlx(void);
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64 | bool GetVisual(void);
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65 | bool CreateWindow(Window winid, int width, int height);
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66 | bool CreateContext(void);
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67 | __GLXextFuncPtr glXGetProcAddress(const char * const procName);
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68 |
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69 | int m_texture;
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70 | Display *m_display;
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71 | int m_screen_num;
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72 | Window m_window;
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73 | XVisualInfo* m_visual;
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74 | GLXContext m_context;
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75 | bool m_visible;
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76 | QString m_extensions;
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77 | int m_supported;
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78 | GLint m_max_tex_size;
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79 | bool m_textures_enabled;
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80 |
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81 | vector<GLuint> textures;
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82 | vector<GLuint> programs;
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83 | vector<GLuint> framebuffers;
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84 |
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85 | unsigned char *scratchspace;
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86 |
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87 | PFNGLGENPROGRAMSARBPROC m_glGenProgramsARB;
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88 | PFNGLBINDPROGRAMARBPROC m_glBindProgramARB;
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89 | PFNGLPROGRAMSTRINGARBPROC m_glProgramStringARB;
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90 | PFNGLPROGRAMENVPARAMETER4FARBPROC m_glProgramEnvParameter4fARB;
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91 | PFNGLDELETEPROGRAMSARBPROC m_glDeleteProgramsARB;
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92 | PFNGLGETPROGRAMIVARBPROC m_glGetProgramivARB;
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93 |
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94 | PFNGLGENFRAMEBUFFERSEXTPROC m_glGenFramebuffersEXT;
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95 | PFNGLBINDFRAMEBUFFEREXTPROC m_glBindFramebufferEXT;
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96 | PFNGLFRAMEBUFFERTEXTURE2DEXTPROC m_glFramebufferTexture2DEXT;
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97 | PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC m_glCheckFramebufferStatusEXT;
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98 | PFNGLDELETEFRAMEBUFFERSEXTPROC m_glDeleteFramebuffersEXT;
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99 | };
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100 |
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101 | #endif
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