5 #define MAX_TEXTUREUNITS 8
7 extern cvar_t gl_lockarrays;
9 extern int c_meshtris, c_meshs;
13 //input to R_Mesh_Draw_GetBuffer
14 int depthwrite; // force depth writing enabled even if polygon is not opaque
15 int depthdisable; // disable depth read/write entirely
19 int tex[MAX_TEXTUREUNITS];
20 int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
24 // overbright rendering scale for the current state
25 extern float mesh_colorscale;
26 extern int *varray_element;
27 extern float *varray_vertex;
28 extern float *varray_color;
29 extern float *varray_texcoord[MAX_TEXTUREUNITS];
30 extern int mesh_maxverts;
31 extern int mesh_maxtris;
33 // adds console variables and registers the render module (only call from GL_Init)
34 void gl_backend_init(void);
36 // starts mesh rendering for the frame
37 void R_Mesh_Start(float farclip);
39 // ends mesh rendering for the frame
40 // (only valid after R_Mesh_Start)
41 void R_Mesh_Finish(void);
43 // clears depth buffer, used for masked sky rendering
44 // (only valid between R_Mesh_Start and R_Mesh_Finish)
45 void R_Mesh_ClearDepth(void);
47 // sets up the requested transform matrix
48 void R_Mesh_Matrix(const matrix4x4_t *matrix);
50 // sets up the requested state
51 void R_Mesh_State(const rmeshstate_t *m);
53 // enlarges geometry buffers if they are too small
54 #define R_Mesh_ResizeCheck(numverts, numtriangles) if ((numverts) > mesh_maxverts || (numtriangles) > mesh_maxtris) _R_Mesh_ResizeCheck(numverts, numtriangles);
55 void _R_Mesh_ResizeCheck(int numverts, int numtriangles);
57 // renders the mesh in the varray_* buffers
58 void R_Mesh_Draw(int numverts, int numtriangles);
60 // saves a section of the rendered frame to a .tga file
61 qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height);
62 // used by R_Envmap_f and internally in backend, clears the frame
63 void R_ClearScreen(void);
64 // invoke refresh of frame
65 void SCR_UpdateScreen (void);