5 #define MAX_TEXTUREUNITS 8
7 #define POLYGONELEMENTS_MAXPOINTS 258
8 extern int polygonelements[768];
10 void GL_SetupView_ViewPort(int x, int y, int width, int height);
11 void GL_SetupView_Orientation_Identity(void);
12 void GL_SetupView_Orientation_FromEntity(vec3_t origin, vec3_t angles);
13 void GL_SetupView_Mode_Perspective(double fovx, double fovy, double zNear, double zFar);
14 void GL_SetupView_Mode_PerspectiveInfiniteFarClip(double fovx, double fovy, double zNear);
15 void GL_SetupView_Mode_Ortho(double x1, double y1, double x2, double y2, double zNear, double zFar);
16 void GL_BlendFunc(int blendfunc1, int blendfunc2);
17 void GL_DepthMask(int state);
18 void GL_DepthTest(int state);
19 void GL_VertexPointer(const float *p);
20 void GL_ColorPointer(const float *p);
21 void GL_Color(float cr, float cg, float cb, float ca);
22 void GL_TransformToScreen(const vec4_t in, vec4_t out);
23 void GL_LockArrays(int first, int count);
24 void GL_ActiveTexture(int num);
25 void GL_ClientActiveTexture(int num);
27 extern cvar_t gl_lockarrays;
28 extern cvar_t gl_mesh_copyarrays;
29 extern cvar_t gl_paranoid;
30 extern cvar_t gl_printcheckerror;
32 extern int c_meshelements, c_meshs;
34 //input to R_Mesh_State
38 int tex1d[MAX_TEXTUREUNITS];
39 int tex[MAX_TEXTUREUNITS];
40 int tex3d[MAX_TEXTUREUNITS];
41 int texcubemap[MAX_TEXTUREUNITS];
42 // texture combine settings
43 int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
44 int texalphascale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
45 int texcombinergb[MAX_TEXTUREUNITS]; // works with or without combine for some operations
46 int texcombinealpha[MAX_TEXTUREUNITS]; // does nothing without combine
48 const float *pointer_texcoord[MAX_TEXTUREUNITS];
52 // lightmap overbright scaling
53 extern int r_lightmapscalebit;
55 // adds console variables and registers the render module (only call from GL_Init)
56 void gl_backend_init(void);
58 // starts mesh rendering for the frame
59 void R_Mesh_Start(void);
61 // ends mesh rendering for the frame
62 // (only valid after R_Mesh_Start)
63 void R_Mesh_Finish(void);
65 // sets up the requested transform matrix
66 void R_Mesh_Matrix(const matrix4x4_t *matrix);
68 // sets up the requested transform matrix
69 void R_Mesh_TextureMatrix(int unitnumber, const matrix4x4_t *matrix);
71 // set up the requested state
72 void R_Mesh_State_Texture(const rmeshstate_t *m);
75 void R_Mesh_Draw(int numverts, int numtriangles, const int *elements);
77 // saves a section of the rendered frame to a .tga or .jpg file
78 qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height, qboolean jpeg);
79 // used by R_Envmap_f and internally in backend, clears the frame
80 void R_ClearScreen(void);
81 // invoke refresh of frame
82 void SCR_UpdateScreen(void);
85 typedef struct rcachearrayrequest_s
87 // for use by the code that is requesting the array, these are not
88 // directly used but merely compared to determine if cache items are
90 const void *id_pointer1;
91 const void *id_pointer2;
92 const void *id_pointer3;
101 rcachearrayrequest_t;
103 int R_Mesh_CacheArray(rcachearrayrequest_t *r);
105 extern float varray_vertex3f[65536*3];
106 extern float varray_color4f[65536*4];
107 extern float varray_texcoord2f[4][65536*2];
108 extern float varray_texcoord3f[4][65536*3];
109 extern float varray_normal3f[65536*3];
110 extern int earray_element3i[65536];