fix for 16bit textures looking awful (bug in the alpha check for 8bit)

[xonotic/darkplaces.git] / gl_backend.h

diff --git a/gl_backend.h b/gl_backend.h
index 075d2bdf94f907660305eacc03819f19647e5c1e..9569ade2be1a44ffe5294bd89fba30b908c6310b 100644 (file)
--- a/gl_backend.h
+++ b/gl_backend.h
@@ -4,54 +4,76 @@
 
 #define MAX_TEXTUREUNITS 8
 
-extern int c_meshtris, c_meshs;
+#define POLYGONELEMENTS_MAXPOINTS 258
+extern int polygonelements[768];
 
+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);
+
+extern cvar_t gl_lockarrays;
+
+extern int c_meshelements, c_meshs;
+
+//input to R_Mesh_State
 typedef struct
 {
-       //input to R_Mesh_Draw_GetBuffer
        int depthwrite; // force depth writing enabled even if polygon is not opaque
        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
-       matrix4x4_t matrix; // model to world transform matrix
+       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
 }
 rmeshstate_t;
 
 // overbright rendering scale for the current state
-extern float mesh_colorscale;
-extern int *varray_element;
+extern int r_lightmapscalebit;
+extern float r_colorscale;
 extern float *varray_vertex;
 extern float *varray_color;
 extern float *varray_texcoord[MAX_TEXTUREUNITS];
 extern int mesh_maxverts;
-extern int mesh_maxtris;
 
 // 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 geometry buffers if they are too small
-#define R_Mesh_ResizeCheck(numverts, numtriangles) if ((numverts) > mesh_maxverts || (numtriangles) > mesh_maxtris) _R_Mesh_ResizeCheck(numverts, numtriangles);
-void _R_Mesh_ResizeCheck(int numverts, int numtriangles);
+// 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);
 
+// 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);
+void R_Mesh_Draw(int numverts, int numtriangles, const int *elements);
 
 // saves a section of the rendered frame to a .tga file
 qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height);