X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=gl_backend.h;h=c015aeb2169df0fdffeea3df3de5c5ee7ae3d123;hb=19f27381a167c3713ff0417fd96651bb0469d2a6;hp=450409ee1998751efc9499eb8926d7fef756e969;hpb=069527b0cff9d91784bba159329e01b0b94df752;p=xonotic%2Fdarkplaces.git diff --git a/gl_backend.h b/gl_backend.h index 450409ee..c015aeb2 100644 --- a/gl_backend.h +++ b/gl_backend.h @@ -1,51 +1,63 @@ -#define MAX_TEXTUREUNITS 8 - -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 qbool 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); +qbool 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_InitOrtho3D(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float nearclip, float farclip, 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, int offsetx, int offsety); +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_BlendEquationSubtract(qbool negated); +void GL_DepthMask(int state); +void GL_DepthTest(int state); +void GL_DepthFunc(int state); +void GL_DepthRange(float nearfrac, float farfrac); +void R_SetStencil(qbool 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_AlphaToCoverage(qbool 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_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_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_debug; +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); @@ -57,38 +69,43 @@ void R_Mesh_Start(void); // (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); -// renders current batch of meshs -// (only valid between R_Mesh_Start and R_Mesh_Finish) -void R_Mesh_Render(void); - -// queues a mesh to be rendered (invokes Render if queue is full) -// (only valid between R_Mesh_Start and R_Mesh_Finish) -void R_Mesh_Draw(const rmeshinfo_t *m); - -// renders the queued transparent meshs -// (only valid between R_Mesh_Start and R_Mesh_Finish) -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 -// (only valid between R_Mesh_Start and R_Mesh_Finish) -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) -// (only valid between R_Mesh_Start and R_Mesh_Finish) -void R_Mesh_Draw_NativeOnly(const rmeshinfo_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, qbool isindexbuffer, qbool isuniformbuffer, qbool isdynamic, qbool isindex16); +void R_Mesh_UpdateMeshBuffer(r_meshbuffer_t *buffer, const void *data, size_t size, qbool subdata, size_t offset); +void R_Mesh_DestroyMeshBuffer(r_meshbuffer_t *buffer); +void GL_Mesh_ListVBOs(qbool printeach); + +void R_Mesh_PrepareVertices_Vertex3f(int numvertices, const float *vertex3f, const r_meshbuffer_t *buffer, int bufferoffset); +void R_Mesh_PrepareVertices_Generic_Arrays(int numvertices, const float *vertex3f, const float *color4f, const float *texcoord2f); +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); + +// 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, if GL_UNSIGNED_BYTE | 0x80000000 is specified it will be an unnormalized type (integer values) +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); +// 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, int element3i_bufferoffset, const unsigned short *element3s, const r_meshbuffer_t *element3s_indexbuffer, int element3s_bufferoffset); + +// saves a section of the rendered frame to a .tga or .jpg file +qbool SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, int x, int y, int width, int height, qbool flipx, qbool flipy, qbool flipdiagonal, qbool jpeg, qbool png, qbool gammacorrect, qbool keep_alpha); +// used by R_Envmap_f and internally in backend, clears the frame +void R_ClearScreen(qbool fogcolor); -// 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) -// (only valid between R_Mesh_Start and R_Mesh_Finish) -int R_Mesh_Draw_GetBuffer(rmeshbufferinfo_t *m); +#endif -// saves a section of the rendered frame to a .tga file -void SCR_ScreenShot(char *filename, int x, int y, int width, int height); -// used by R_Envmap_f and internally in backend, clears the frame -void R_ClearScreen(void); -// invoke refresh of frame -void SCR_UpdateScreen (void);