X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=gl_backend.h;h=3bdc2e60b9f3c4434db058eb2aaf598a3a2f23cc;hp=2eaae8e8aba04bdecc34b969f4f44560fd936452;hb=69a9f6bb4ea7d2a62b22238da58fe99d0ebd41d8;hpb=e5fbac6d4ee0ee7c55f399224f09beedc7374d57

diff --git a/gl_backend.h b/gl_backend.h
index 2eaae8e8..3bdc2e60 100644
--- a/gl_backend.h
+++ b/gl_backend.h
@@ -1,42 +1,112 @@
 
-#define MAX_TEXTUREUNITS 4
+#ifndef GL_BACKEND_H
+#define GL_BACKEND_H
 
-extern int c_meshtris, c_meshs, c_transtris, c_transmeshs;
+#define MAX_TEXTUREUNITS 16
 
-typedef struct
+#define POLYGONELEMENTS_MAXPOINTS 258
+extern int polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+#define QUADELEMENTS_MAXQUADS 128
+extern int quadelements[QUADELEMENTS_MAXQUADS*6];
+
+void GL_SetupView_Orientation_Identity(void);
+void GL_SetupView_Orientation_FromEntity(matrix4x4_t *matrix);
+void GL_SetupView_Mode_Perspective(double frustumx, double frustumy, double zNear, double zFar);
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip(double frustumx, double frustumy, double zNear);
+void GL_SetupView_Mode_Ortho(double x1, double y1, double x2, double y2, double zNear, double zFar);
+void GL_BlendFunc(int blendfunc1, int blendfunc2);
+void GL_DepthMask(int state);
+void GL_DepthTest(int state);
+void GL_ColorMask(int r, int g, int b, int a);
+void GL_Color(float cr, float cg, float cb, float ca);
+void GL_ShowTrisColor(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);
+void GL_ActiveTexture(unsigned int num);
+void GL_ClientActiveTexture(unsigned int num);
+void GL_Scissor(int x, int y, int width, int height);
+void GL_ScissorTest(int state);
+void GL_Clear(int mask);
+
+unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **vertexstrings_list, int fragmentstrings_count, const char **fragmentstrings_list);
+void GL_Backend_FreeProgram(unsigned int prog);
+
+extern cvar_t gl_lockarrays;
+extern cvar_t gl_mesh_copyarrays;
+extern cvar_t gl_paranoid;
+extern cvar_t gl_printcheckerror;
+
+//input to R_Mesh_State
+typedef struct rmeshstate_s
 {
-	int transparent;
-	int depthwrite; // force depth writing enabled even if polygon is not opaque
-	int depthdisable; // disable depth read/write entirely
-	int blendfunc1;
-	int blendfunc2;
-	int numtriangles;
-	int *index;
-	int numverts;
-	float *vertex;
-	int vertexstep;
-	float *color;
-	int colorstep;
-	// if color is NULL, these are used for all vertices
-	float cr, cg, cb, ca;
+	// textures
+	int tex1d[MAX_TEXTUREUNITS];
 	int tex[MAX_TEXTUREUNITS];
-	float *texcoords[MAX_TEXTUREUNITS];
-	int texcoordstep[MAX_TEXTUREUNITS];
-	float texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
+	int tex3d[MAX_TEXTUREUNITS];
+	int texcubemap[MAX_TEXTUREUNITS];
+	// texture combine settings
+	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
+	// matrices
+	matrix4x4_t texmatrix[MAX_TEXTUREUNITS];
+	// pointers
+	const float *pointer_texcoord[MAX_TEXTUREUNITS]; // 2D
+	const float *pointer_texcoord3f[MAX_TEXTUREUNITS]; // 3D
+
+	// other state set by this
+	const float *pointer_vertex;
+	const float *pointer_color;
 }
-rmeshinfo_t;
+rmeshstate_t;
 
 // adds console variables and registers the render module (only call from GL_Init)
 void gl_backend_init(void);
-// sets up mesh renderer for the frame
-void R_Mesh_Clear(void);
-// renders queued meshs
-void R_Mesh_Render(void);
-// queues a mesh to be rendered (invokes Render if queue is full)
-void R_Mesh_Draw(const rmeshinfo_t *m);
-// renders the queued transparent meshs
-void R_Mesh_AddTransparent(void);
-// ease-of-use frontend to R_Mesh_Draw, set up meshinfo, except for index and numtriangles and numverts, then call this
-void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts);
-// same as normal, except for harsh format restrictions (vertex must be 4 float, color must be 4 float, texcoord must be 2 float, flat color not supported)
-void R_Mesh_Draw_NativeOnly(const rmeshinfo_t *m);
+
+// starts mesh rendering for the frame
+void R_Mesh_Start(void);
+
+// ends mesh rendering for the frame
+// (only valid after R_Mesh_Start)
+void R_Mesh_Finish(void);
+
+// sets up the requested vertex transform matrix
+void R_Mesh_Matrix(const matrix4x4_t *matrix);
+// sets the vertex array pointer
+void R_Mesh_VertexPointer(const float *vertex3f);
+// sets the color array pointer (GL_Color only works when this is NULL)
+void R_Mesh_ColorPointer(const float *color4f);
+// sets the texcoord array pointer for an array unit
+void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord);
+// sets all textures bound to an image unit (multiple can be non-zero at once, according to OpenGL rules the highest one overrides the others)
+void R_Mesh_TexBindAll(unsigned int unitnum, int tex1d, int tex2d, int tex3d, int texcubemap);
+// sets these are like TexBindAll with only one of the texture indices non-zero
+// (binds one texture type and unbinds all other types)
+void R_Mesh_TexBind1D(unsigned int unitnum, int texnum);
+void R_Mesh_TexBind(unsigned int unitnum, int texnum);
+void R_Mesh_TexBind3D(unsigned int unitnum, int texnum);
+void R_Mesh_TexBindCubeMap(unsigned int unitnum, int texnum);
+// sets the texcoord matrix for a texenv unit
+void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix);
+// sets the combine state for a texenv unit
+void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, int rgbscale, int alphascale);
+// set up the requested entire rendering state
+void R_Mesh_State(const rmeshstate_t *m);
+
+// renders a mesh
+void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements);
+// renders a mesh as lines
+void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements);
+
+// saves a section of the rendered frame to a .tga or .jpg file
+qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, unsigned char *buffer3, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean gammacorrect);
+// used by R_Envmap_f and internally in backend, clears the frame
+void R_ClearScreen(void);
+// invoke refresh of frame
+void SCR_UpdateScreen(void);
+// invoke refresh of loading plaque (nothing else seen)
+void SCR_UpdateLoadingScreen(void);
+
+#endif
+