added gl_mesh_batching (default on) which merges several meshes in a row to reduce...

[xonotic/darkplaces.git] / gl_backend.h

diff --git a/gl_backend.h b/gl_backend.h
index b61093fb599ef6e4e1b07ff85955f7746cb4736e..60f5042ae929ca20faf29cb7940c3d67b491ad3a 100644 (file)
--- a/gl_backend.h
+++ b/gl_backend.h
@@ -7,9 +7,19 @@
 #define POLYGONELEMENTS_MAXPOINTS 258
 extern int polygonelements[768];
 
-void GL_DrawRangeElements(int firstvert, int endvert, int indexcount, int *index);
+void GL_SetupView_ViewPort (int x, int y, int width, int height);
+void GL_SetupView_Orientation_Identity (void);
+void GL_SetupView_Orientation_FromEntity (vec3_t origin, vec3_t angles);
+void GL_SetupView_Mode_Perspective (double fovx, double fovy, double zNear, double zFar);
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, double zNear);
+void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar);
+void GL_UseColorArray(void);
+void GL_Color(float cr, float cg, float cb, float ca);
+void GL_TransformToScreen(const vec4_t in, vec4_t out);
+void GL_LockArrays(int first, int count);
 
 extern cvar_t gl_lockarrays;
+extern cvar_t gl_mesh_copyarrays;
 
 extern int c_meshelements, c_meshs;
 
@@ -20,48 +30,69 @@ typedef struct
        int depthdisable; // disable depth read/write entirely
        int blendfunc1;
        int blendfunc2;
-       int wantoverbright;
+       //int wantoverbright;
+       int tex1d[MAX_TEXTUREUNITS];
        int tex[MAX_TEXTUREUNITS];
+       int tex3d[MAX_TEXTUREUNITS];
+       int texcubemap[MAX_TEXTUREUNITS];
        int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
+       int texalphascale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
+       int texcombinergb[MAX_TEXTUREUNITS]; // works with or without combine for some operations
+       int texcombinealpha[MAX_TEXTUREUNITS]; // does nothing without combine
+       int pointervertexcount;
+       float *pointer_vertex;
+       float *pointer_color;
+       float *pointer_texcoord[MAX_TEXTUREUNITS];
 }
 rmeshstate_t;
 
 // overbright rendering scale for the current state
-extern float mesh_colorscale;
-extern float *varray_vertex;
-extern float *varray_color;
-extern float *varray_texcoord[MAX_TEXTUREUNITS];
+extern int r_lightmapscalebit;
+extern float r_colorscale;
+extern float *varray_vertex3f;
+extern float *varray_color4f;
+extern float *varray_texcoord3f[MAX_TEXTUREUNITS];
+extern float *varray_texcoord2f[MAX_TEXTUREUNITS];
 extern int mesh_maxverts;
 
 // adds console variables and registers the render module (only call from GL_Init)
 void gl_backend_init(void);
 
 // starts mesh rendering for the frame
-void R_Mesh_Start(float farclip);
+void R_Mesh_Start(void);
 
 // ends mesh rendering for the frame
 // (only valid after R_Mesh_Start)
 void R_Mesh_Finish(void);
 
-// clears depth buffer, used for masked sky rendering
-// (only valid between R_Mesh_Start and R_Mesh_Finish)
-void R_Mesh_ClearDepth(void);
-
 // sets up the requested transform matrix
 void R_Mesh_Matrix(const matrix4x4_t *matrix);
 
 // sets up the requested state
 void R_Mesh_State(const rmeshstate_t *m);
 
-// enlarges vertex arrays if they are too small
-#define R_Mesh_ResizeCheck(numverts) if ((numverts) > mesh_maxverts) _R_Mesh_ResizeCheck(numverts);
-void _R_Mesh_ResizeCheck(int numverts);
+// sets up the requested main state
+void R_Mesh_MainState(const rmeshstate_t *m);
+
+// sets up the requested texture state
+void R_Mesh_TextureState(const rmeshstate_t *m);
 
+// forcefully ends a batch (do this before calling any gl functions directly)
+void R_Mesh_EndBatch(void);
+// prepares varray_* buffers for rendering a mesh
+void R_Mesh_GetSpace(int numverts);
 // renders the mesh in the varray_* buffers
-void R_Mesh_Draw(int numverts, int numtriangles, int *elements);
+void R_Mesh_Draw(int numverts, int numtriangles, const int *elements);
+
+// copies a vertex3f array into varray_vertex3f
+void R_Mesh_CopyVertex3f(const float *vertex3f, int numverts);
+// copies a texcoord2f array into varray_texcoord[tmu]
+void R_Mesh_CopyTexCoord2f(int tmu, const float *texcoord2f, int numverts);
+// copies a color4f array into varray_color4f
+void R_Mesh_CopyColor4f(const float *color4f, int numverts);
 
-// saves a section of the rendered frame to a .tga file
-qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height);
+// saves a section of the rendered frame to a .tga or .jpg file
+qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height, qboolean jpeg);
 // used by R_Envmap_f and internally in backend, clears the frame
 void R_ClearScreen(void);
 // invoke refresh of frame