#ifndef GL_BACKEND_H
#define GL_BACKEND_H
-#define MAX_TEXTUREUNITS 8
+// how many texture units to track state on (backendunits/backendimageunits/backendarrayunits are limited to this value)
+#define MAX_TEXTUREUNITS 64
#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);
+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(const 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_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_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 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
+//input to R_Mesh_TextureState
+typedef struct rmeshstate_s
{
- 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;
+ // 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
- int pointervertexcount;
- float *pointer_vertex;
- float *pointer_color;
- float *pointer_texcoord[MAX_TEXTUREUNITS];
+ // matrices
+ matrix4x4_t texmatrix[MAX_TEXTUREUNITS];
+ // pointers
+ const float *pointer_texcoord[MAX_TEXTUREUNITS]; // 2D
+ const float *pointer_texcoord3f[MAX_TEXTUREUNITS]; // 3D
}
rmeshstate_t;
-// overbright rendering scale for the current state
-extern int r_lightmapscalebit;
-extern float r_colorscale;
-extern float *varray_vertex3f;
-extern float *varray_color4f;
-extern float *varray_texcoord3f[MAX_TEXTUREUNITS];
-extern float *varray_texcoord2f[MAX_TEXTUREUNITS];
-extern int mesh_maxverts;
-
// 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
+// sets up the requested vertex transform matrix
void R_Mesh_Matrix(const matrix4x4_t *matrix);
-
-// sets up the requested state
-void R_Mesh_State(const rmeshstate_t *m);
-
-// sets up the requested main state
-void R_Mesh_MainState(const rmeshstate_t *m);
-
-// sets up the requested texture state
+// sets the vertex array pointer
+void R_Mesh_VertexPointer(const float *vertex3f, int bufferobject, size_t bufferoffset);
+// sets the color array pointer (GL_Color only works when this is NULL)
+void R_Mesh_ColorPointer(const float *color4f, int bufferobject, size_t bufferoffset);
+// sets the texcoord array pointer for an array unit
+void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord, int bufferobject, size_t bufferoffset);
+// 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 texture state
void R_Mesh_TextureState(const rmeshstate_t *m);
+// set up a blank texture state (faster/easier specialized version of R_Mesh_TextureState)
+void R_Mesh_ResetTextureState(void);
-// forcefully ends a batch (do this before calling any gl functions directly)
-void R_Mesh_EndBatch(void);
-// prepares varray_* buffers for rendering a mesh
-void R_Mesh_GetSpace(int numverts);
-// renders a mesh (optionally with batching)
-void R_Mesh_Draw(int numverts, int numtriangles, const int *elements);
-// renders a mesh without affecting batching
-void R_Mesh_Draw_NoBatching(int numverts, int numtriangles, const int *elements);
-
-// copies a vertex3f array into varray_vertex3f
-void R_Mesh_CopyVertex3f(const float *vertex3f, int numverts);
-// copies a texcoord2f array into varray_texcoord[tmu]
-void R_Mesh_CopyTexCoord2f(int tmu, const float *texcoord2f, int numverts);
-// copies a color4f array into varray_color4f
-void R_Mesh_CopyColor4f(const float *color4f, int numverts);
+// renders a mesh
+void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements, int bufferobject, size_t bufferoffset);
+// 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, int x, int y, int width, int height, qboolean jpeg);
+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);
-
-// 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);
+// invoke refresh of loading plaque (nothing else seen)
+void SCR_UpdateLoadingScreen(qboolean clear);
#endif
projects / xonotic / darkplaces.git / blobdiff