X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=gl_backend.h;h=3e1a17c29a4de031159a38dc5ee7caa47e689753;hb=7553655597e4e22766b9ed2394896a2a6905fc32;hp=1c0be7bd9786026daecd2b6bdbd1bdd99e73e456;hpb=bc6e12f9c8c430e98d6cf89c96c3bfeb903e90d1;p=xonotic%2Fdarkplaces.git

diff --git a/gl_backend.h b/gl_backend.h
index 1c0be7bd..82b9ed4f 100644
--- a/gl_backend.h
+++ b/gl_backend.h
@@ -1,66 +1,124 @@
 
-#define MAX_TEXTUREUNITS 4
-
-extern int c_meshtris, c_meshs, c_transtris, c_transmeshs;
-
-typedef struct
-{
-	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;
-	float cr, cg, cb, ca; // if color is NULL, these are used for all vertices
-	int tex[MAX_TEXTUREUNITS];
-	float *texcoords[MAX_TEXTUREUNITS];
-	int texcoordstep[MAX_TEXTUREUNITS];
-	float texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
-}
-rmeshinfo_t;
-
-typedef struct
-{
-	//input to R_Mesh_Draw_GetBuffer
-	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 numverts;
-	int tex[MAX_TEXTUREUNITS];
-	float texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
-
-	// output
-	int *index;
-	float *vertex;
-	float *color;
-	float colorscale;
-	float *texcoords[MAX_TEXTUREUNITS];
-}
-rmeshbufferinfo_t;
+#ifndef GL_BACKEND_H
+#define GL_BACKEND_H
+
+extern r_viewport_t gl_viewport;
+extern matrix4x4_t gl_modelmatrix;
+extern matrix4x4_t gl_viewmatrix;
+extern matrix4x4_t gl_modelviewmatrix;
+extern matrix4x4_t gl_projectionmatrix;
+extern matrix4x4_t gl_modelviewprojectionmatrix;
+extern float gl_modelview16f[16];
+extern float gl_modelviewprojection16f[16];
+extern qboolean gl_modelmatrixchanged;
+
+#define POLYGONELEMENTS_MAXPOINTS 258
+extern int polygonelement3i[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+extern unsigned short polygonelement3s[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+#define QUADELEMENTS_MAXQUADS 128
+extern int quadelement3i[QUADELEMENTS_MAXQUADS*6];
+extern unsigned short quadelement3s[QUADELEMENTS_MAXQUADS*6];
+
+void R_Viewport_TransformToScreen(const r_viewport_t *v, const vec4_t in, vec4_t out);
+qboolean R_ScissorForBBox(const float *mins, const float *maxs, int *scissor);
+void R_Viewport_InitOrtho(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float x1, float y1, float x2, float y2, float zNear, float zFar, const float *nearplane);
+void R_Viewport_InitPerspective(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float zNear, float zFar, const float *nearplane);
+void R_Viewport_InitPerspectiveInfinite(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float zNear, const float *nearplane);
+void R_Viewport_InitCubeSideView(r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, float nearclip, float farclip, const float *nearplane);
+void R_Viewport_InitRectSideView(r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, int border, float nearclip, float farclip, const float *nearplane);
+void R_SetViewport(const r_viewport_t *v);
+void R_GetViewport(r_viewport_t *v);
+void GL_Finish(void);
+
+void GL_BlendFunc(int blendfunc1, int blendfunc2);
+void GL_DepthMask(int state);
+void GL_DepthTest(int state);
+void GL_DepthFunc(int state);
+void GL_DepthRange(float nearfrac, float farfrac);
+void R_SetStencilSeparate(qboolean enable, int writemask, int frontfail, int frontzfail, int frontzpass, int backfail, int backzfail, int backzpass, int frontcompare, int backcompare, int comparereference, int comparemask);
+void R_SetStencil(qboolean enable, int writemask, int fail, int zfail, int zpass, int compare, int comparereference, int comparemask);
+void GL_PolygonOffset(float planeoffset, float depthoffset);
+void GL_CullFace(int state);
+void GL_AlphaTest(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_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, const float *colorvalue, float depthvalue, int stencilvalue);
+void GL_ReadPixelsBGRA(int x, int y, int width, int height, unsigned char *outpixels);
+int R_Mesh_CreateFramebufferObject(rtexture_t *depthtexture, rtexture_t *colortexture, rtexture_t *colortexture2, rtexture_t *colortexture3, rtexture_t *colortexture4);
+void R_Mesh_DestroyFramebufferObject(int fbo);
+void R_Mesh_ResetRenderTargets(void);
+void R_Mesh_SetMainRenderTargets(void);
+void R_Mesh_SetRenderTargets(int fbo, rtexture_t *depthtexture, rtexture_t *colortexture, rtexture_t *colortexture2, rtexture_t *colortexture3, rtexture_t *colortexture4);
+
+unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **vertexstrings_list, int geometrystrings_count, const char **geometrystrings_list, int fragmentstrings_count, const char **fragmentstrings_list);
+void GL_Backend_FreeProgram(unsigned int prog);
+
+extern cvar_t gl_paranoid;
+extern cvar_t gl_printcheckerror;
 
 // 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);
-// allocates space in geometry buffers, and fills in pointers to the buffers in passsed struct
-// (this is used for very high speed rendering, no copying)
-int R_Mesh_Draw_GetBuffer(rmeshbufferinfo_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);
+
+
+// vertex buffer and index buffer creation/updating/freeing
+r_meshbuffer_t *R_Mesh_CreateMeshBuffer(const void *data, size_t size, const char *name, qboolean isindexbuffer, qboolean isdynamic, qboolean isindex16);
+void R_Mesh_UpdateMeshBuffer(r_meshbuffer_t *buffer, const void *data, size_t size);
+void R_Mesh_DestroyMeshBuffer(r_meshbuffer_t *buffer);
+void GL_Mesh_ListVBOs(qboolean printeach);
+
+void R_Mesh_PrepareVertices_Vertex3f(int numvertices, const float *vertex3f, const r_meshbuffer_t *buffer);
+
+r_vertexgeneric_t *R_Mesh_PrepareVertices_Generic_Lock(int numvertices);
+qboolean R_Mesh_PrepareVertices_Generic_Unlock(void);
+void R_Mesh_PrepareVertices_Generic_Arrays(int numvertices, const float *vertex3f, const float *color4f, const float *texcoord2f);
+void R_Mesh_PrepareVertices_Generic(int numvertices, const r_vertexgeneric_t *vertex, const r_meshbuffer_t *vertexbuffer);
+
+r_vertexmesh_t *R_Mesh_PrepareVertices_Mesh_Lock(int numvertices);
+qboolean R_Mesh_PrepareVertices_Mesh_Unlock(void); // if this returns false, you need to prepare the mesh again!
+void R_Mesh_PrepareVertices_Mesh_Arrays(int numvertices, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *color4f, const float *texcoordtexture2f, const float *texcoordlightmap2f);
+void R_Mesh_PrepareVertices_Mesh(int numvertices, const r_vertexmesh_t *vertex, const r_meshbuffer_t *buffer);
+
+// sets up the requested vertex transform matrix
+void R_EntityMatrix(const matrix4x4_t *matrix);
+// sets the vertex array pointer
+void R_Mesh_VertexPointer(int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset);
+// sets the color array pointer (GL_Color only works when this is NULL)
+void R_Mesh_ColorPointer(int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset);
+// sets the texcoord array pointer for an array unit
+void R_Mesh_TexCoordPointer(unsigned int unitnum, int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset);
+// returns current texture bound to this identifier
+int R_Mesh_TexBound(unsigned int unitnum, int id);
+// copies a section of the framebuffer to a 2D texture
+void R_Mesh_CopyToTexture(rtexture_t *tex, int tx, int ty, int sx, int sy, int width, int height);
+// bind a given texture to a given image unit
+void R_Mesh_TexBind(unsigned int unitnum, rtexture_t *tex);
+// sets the texcoord matrix for a texenv unit, can be NULL or blank (will use identity)
+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 a blank texture state (unbinds all textures, texcoord pointers, and resets combine settings)
+void R_Mesh_ResetTextureState(void);
+// before a texture is freed, make sure there are no references to it
+void R_Mesh_ClearBindingsForTexture(int texnum);
+
+// renders a mesh
+void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const r_meshbuffer_t *element3i_indexbuffer, size_t element3i_bufferoffset, const unsigned short *element3s, const r_meshbuffer_t *element3s_indexbuffer, size_t element3s_bufferoffset);
+
+// saves a section of the rendered frame to a .tga or .jpg file
+qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean png, qboolean gammacorrect, qboolean keep_alpha);
+// used by R_Envmap_f and internally in backend, clears the frame
+void R_ClearScreen(qboolean fogcolor);
+
+#endif
+