129 lines
4.5 KiB
C
129 lines
4.5 KiB
C
//=======================================================================
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// Copyright XashXT Group 2008 ©
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// render_api.h - xash renderer api
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//=======================================================================
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#ifndef RENDER_API_H
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#define RENDER_API_H
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#include "ref_params.h"
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// shader types used for shader loading
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#define SHADER_SKY 1 // sky box shader
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#define SHADER_FONT 2 // special case for displayed fonts
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#define SHADER_NOMIP 3 // 2d images
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#define SHADER_GENERIC 4 // generic shader
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// screenshot types
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#define VID_SCREENSHOT 0
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#define VID_LEVELSHOT 1
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#define VID_SAVESHOT 2
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// render supported extensions
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#define R_WGL_SWAPCONTROL 1
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#define R_HARDWARE_GAMMA_CONTROL 2
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#define R_ARB_VERTEX_BUFFER_OBJECT_EXT 3
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#define R_ENV_COMBINE_EXT 4
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#define R_ARB_MULTITEXTURE 5
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#define R_TEXTURECUBEMAP_EXT 6
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#define R_DOT3_ARB_EXT 7
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#define R_ANISOTROPY_EXT 8
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#define R_TEXTURE_LODBIAS 9
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#define R_OCCLUSION_QUERIES_EXT 10
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#define R_TEXTURE_COMPRESSION_EXT 11
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#define R_SHADER_GLSL100_EXT 12
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typedef struct
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{
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int numverts;
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vec3_t *verts;
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vec2_t *stcoords;
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rgba_t *colors;
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union
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{
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struct ref_shader_s *shader;
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shader_t shadernum;
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};
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int fognum;
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vec3_t normal;
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} poly_t;
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typedef struct
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{
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int firstvert;
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int numverts; // can't exceed MAX_POLY_VERTS
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int fognum; // -1 - do not bother adding fog later at rendering stage
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// 0 - determine fog later
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// >0 - valid fog volume number returned by R_GetClippedFragments
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vec3_t normal;
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} fragment_t;
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/*
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==============================================================================
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RENDER.DLL INTERFACE
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==============================================================================
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*/
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typedef struct render_exp_s
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{
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// interface validator
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size_t api_size; // must matched with sizeof(render_exp_t)
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size_t com_size; // must matched with sizeof(stdlib_api_t)
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// initialize
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bool (*Init)( bool full ); // init all render systems
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void (*Shutdown)( bool full ); // shutdown all render systems
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void (*BeginRegistration)( const char *map, const dvis_t *visData );
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bool (*RegisterModel)( const char *name, int cl_index ); // also build replacement index table
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shader_t (*RegisterShader)( const char *name, int shaderType );
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void (*EndRegistration)( const char *skyname );
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// prepare frame to rendering
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bool (*AddRefEntity)( edict_t *pRefEntity, int ed_type );
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bool (*AddDynLight)( const void *dlight );
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bool (*AddPolygon)( const poly_t *poly );
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bool (*AddLightStyle)( int stylenum, vec3_t color );
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void (*ClearScene)( void );
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void (*BeginFrame)( const ref_params_t *fd );
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void (*RenderFrame)( const ref_params_t *fd );
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void (*EndFrame)( void );
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// misc utilities
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void (*SetColor)( const rgba_t color );
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void (*SetParms)( shader_t handle, kRenderMode_t rendermode, int frame );
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void (*GetParms)( int *w, int *h, int *frames, int frame, shader_t shader );
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bool (*ScrShot)( const char *filename, int shot_type ); // write screenshot with same name
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bool (*EnvShot)( const char *filename, uint size, bool skyshot ); // write envshot with same name
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void (*LightForPoint)( const vec3_t point, vec3_t ambientLight );
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void (*DrawFill)( float x, float y, float w, float h );
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void (*DrawStretchRaw)( int x, int y, int w, int h, int cols, int rows, byte *data, bool redraw );
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void (*DrawStretchPic)( float x, float y, float w, float h, float s1, float t1, float s2, float t2, shader_t shader );
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int (*GetFragments)( const vec3_t org, float rad, vec3_t axis[3], int maxverts, vec3_t *verts, int maxfrags, fragment_t *frags );
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int (*WorldToScreen)( const float *world, float *screen );
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void (*ScreenToWorld)( const float *screen, float *world );
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bool (*RSpeedsMessage)( char *out, size_t size );
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bool (*Support)( int extension );
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} render_exp_t;
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typedef struct render_imp_s
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{
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// interface validator
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size_t api_size; // must matched with sizeof(render_imp_t)
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// client fundamental callbacks
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void (*UpdateScreen)( void ); // update screen while loading
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void (*StudioEvent)( dstudioevent_t *event, edict_t *ent );
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void (*StudioFxTransform)( edict_t *ent, float matrix[4][4] );
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void (*ShowCollision)( cmdraw_t callback ); // debug
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bool (*Trace)( const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end );
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long (*WndProc)( void *hWnd, uint uMsg, uint wParam, long lParam );
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edict_t *(*GetClientEdict)( int index );
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edict_t *(*GetLocalPlayer)( void );
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int (*GetMaxClients)( void );
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float (*GetLerpFrac)( void );
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} render_imp_t;
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#endif//RENDER_API_H
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