#ifndef GL_BACKEND_H
#define GL_BACKEND_H
-#define MAX_TEXTUREUNITS 8
+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 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);
+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_VertexPointer(const float *p);
-void GL_ColorPointer(const float *p);
+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_AlphaToCoverage(qboolean 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_TransformToScreen(const vec4_t in, vec4_t out);
-void GL_LockArrays(int first, int count);
-void GL_ActiveTexture(int num);
-void GL_ClientActiveTexture(int num);
+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_lockarrays;
-extern cvar_t gl_mesh_copyarrays;
extern cvar_t gl_paranoid;
extern cvar_t gl_printcheckerror;
-extern int c_meshelements, c_meshs;
-
-//input to R_Mesh_State
-typedef struct
-{
- // textures
- int tex1d[MAX_TEXTUREUNITS];
- int tex[MAX_TEXTUREUNITS];
- 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
- // pointers
- const float *pointer_texcoord[MAX_TEXTUREUNITS];
-}
-rmeshstate_t;
-
-// overbright rendering scale for the current state
-extern int r_lightmapscalebit;
-extern float r_colorscale;
-
// adds console variables and registers the render module (only call from GL_Init)
void gl_backend_init(void);
// (only valid after R_Mesh_Start)
void R_Mesh_Finish(void);
-// sets up the requested transform matrix
-void R_Mesh_Matrix(const matrix4x4_t *matrix);
-
-// sets up the requested transform matrix
-void R_Mesh_TextureMatrix(int unitnumber, const matrix4x4_t *matrix);
-// set up the requested state
-void R_Mesh_State_Texture(const rmeshstate_t *m);
+// 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 numverts, int numtriangles, const int *elements);
+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, int x, int y, int width, int height, qboolean jpeg);
+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(void);
-// invoke refresh of frame
-void SCR_UpdateScreen(void);
-
-// public structure
-typedef struct rcachearrayrequest_s
-{
- // for use by the code that is requesting the array, these are not
- // directly used but merely compared to determine if cache items are
- // identical
- const void *id_pointer1;
- const void *id_pointer2;
- const void *id_pointer3;
- int id_number1;
- int id_number2;
- int id_number3;
- // size of array data
- int data_size;
- // array data pointer
- void *data;
-}
-rcachearrayrequest_t;
-
-int R_Mesh_CacheArray(rcachearrayrequest_t *r);
-
-extern float varray_vertex3f[65536*3];
-extern float varray_color4f[65536*4];
-extern float varray_texcoord2f[4][65536*2];
-extern float varray_texcoord3f[4][65536*3];
-extern float varray_normal3f[65536*3];
+void R_ClearScreen(qboolean fogcolor);
#endif
projects / xonotic / darkplaces.git / blobdiff