549 lines
16 KiB
C
549 lines
16 KiB
C
//=======================================================================
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// Copyright XashXT Group 2010 ©
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// gl_local.h - renderer local declarations
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//=======================================================================
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#ifndef GL_LOCAL_H
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#define GL_LOCAL_H
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#include "gl_export.h"
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#include "com_model.h"
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#include "cl_entity.h"
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#include "ref_params.h"
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#include "protocol.h"
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#include "dlight.h"
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extern byte *r_temppool;
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#define MAX_TEXTURES 2048
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#define MAX_LIGHTMAPS 64
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#define SUBDIVIDE_SIZE 64
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// renderer flags
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#define RDF_PORTALINVIEW BIT( 0 ) // draw portal pass
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#define RDF_SKYPORTALINVIEW BIT( 1 ) // draw skyportal instead of regular sky
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// refparams
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#define RP_NONE 0
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#define RP_MIRRORVIEW BIT( 0 ) // lock pvs at vieworg
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#define RP_PORTALVIEW BIT( 1 )
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#define RP_ENVVIEW BIT( 2 ) // used for cubemapshot
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#define RP_OLDVIEWLEAF BIT( 3 )
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#define RP_CLIPPLANE BIT( 4 )
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#define RP_FLIPFRONTFACE BIT( 5 ) // e.g. for mirrors drawing
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#define RP_SHADOWMAPVIEW BIT( 6 )
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#define RP_SKYPORTALVIEW BIT( 7 )
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#define RP_NOSKY BIT( 8 )
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#define RP_NONVIEWERREF (RP_PORTALVIEW|RP_MIRRORVIEW|RP_ENVVIEW|RP_SKYPORTALVIEW|RP_SHADOWMAPVIEW)
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#define RP_LOCALCLIENT( e ) (CL_GetLocalPlayer() && ((e)->index == CL_GetLocalPlayer()->index && e->player ))
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typedef enum
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{
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TEX_INVALID = 0, // free slot
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TEX_SYSTEM, // generated by engine
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TEX_NOMIP, // hud pics, menu etc
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TEX_BRUSH, // a map texture
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TEX_SPRITE, // sprite frames
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TEX_STUDIO, // studio skins
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TEX_LIGHTMAP, // lightmap textures
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TEX_DECAL, // decals
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TEX_SKYBOX, // skybox or sky layers
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TEX_CUBEMAP // cubemap textures
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} texType_t;
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enum
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{
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GLSTATE_NONE = 0,
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GLSTATE_SRCBLEND_ZERO = 1,
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GLSTATE_SRCBLEND_ONE = 2,
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GLSTATE_SRCBLEND_DST_COLOR = 1|2,
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GLSTATE_SRCBLEND_ONE_MINUS_DST_COLOR = 4,
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GLSTATE_SRCBLEND_SRC_ALPHA = 1|4,
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GLSTATE_SRCBLEND_ONE_MINUS_SRC_ALPHA = 2|4,
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GLSTATE_SRCBLEND_DST_ALPHA = 1|2|4,
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GLSTATE_SRCBLEND_ONE_MINUS_DST_ALPHA = 8,
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GLSTATE_DSTBLEND_ZERO = 16,
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GLSTATE_DSTBLEND_ONE = 32,
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GLSTATE_DSTBLEND_SRC_COLOR = 16|32,
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GLSTATE_DSTBLEND_ONE_MINUS_SRC_COLOR = 64,
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GLSTATE_DSTBLEND_SRC_ALPHA = 16|64,
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GLSTATE_DSTBLEND_ONE_MINUS_SRC_ALPHA = 32|64,
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GLSTATE_DSTBLEND_DST_ALPHA = 16|32|64,
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GLSTATE_DSTBLEND_ONE_MINUS_DST_ALPHA = 128,
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GLSTATE_BLEND_MTEX = 0x100,
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GLSTATE_AFUNC_GT0 = 0x200,
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GLSTATE_AFUNC_LT128 = 0x400,
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GLSTATE_AFUNC_GE128 = 0x800,
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GLSTATE_DEPTHWRITE = 0x1000,
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GLSTATE_DEPTHFUNC_EQ = 0x2000,
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GLSTATE_OFFSET_FILL = 0x4000,
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GLSTATE_NO_DEPTH_TEST = 0x8000,
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GLSTATE_MARK_END = 0x10000 // SHADERPASS_MARK_BEGIN
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};
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#define GLSTATE_MASK ( GLSTATE_MARK_END-1 )
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// #define SHADERPASS_SRCBLEND_MASK (((GLSTATE_SRCBLEND_DST_ALPHA)<<1)-GLSTATE_SRCBLEND_ZERO)
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#define GLSTATE_SRCBLEND_MASK 0xF
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// #define SHADERPASS_DSTBLEND_MASK (((GLSTATE_DSTBLEND_DST_ALPHA)<<1)-GLSTATE_DSTBLEND_ZERO)
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#define GLSTATE_DSTBLEND_MASK 0xF0
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#define GLSTATE_BLENDFUNC ( GLSTATE_SRCBLEND_MASK|GLSTATE_DSTBLEND_MASK )
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#define GLSTATE_ALPHAFUNC ( GLSTATE_AFUNC_GT0|GLSTATE_AFUNC_LT128|GLSTATE_AFUNC_GE128 )
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typedef struct gltexture_s
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{
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char name[64]; // game path, including extension
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word srcWidth; // keep unscaled sizes
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word srcHeight;
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word width; // upload width\height
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word height;
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GLuint target; // glTarget
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GLuint texnum; // gl texture binding
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GLint format; // uploaded format
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texFlags_t flags;
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// debug info
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byte texType; // used for gl_showtextures
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size_t size; // upload size for debug targets
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struct gltexture_s *nextHash;
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} gltexture_t;
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// surface extradata stored in cache.data for all brushmodels
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typedef struct mextrasurf_s
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{
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vec3_t mins, maxs;
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vec3_t origin; // surface origin
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int checkcount; // for multi-check avoidance
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} mextrasurf_t;
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typedef struct
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{
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int params; // rendering parameters
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int rdflags; // actual rendering flags
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qboolean drawWorld; // ignore world for drawing PlayerModel
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qboolean thirdPerson; // thirdperson camera is enabled
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float lerpFrac; // lerpfraction
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ref_params_t refdef; // actual refdef
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cl_entity_t *currententity;
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model_t *currentmodel;
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int viewport[4];
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int scissor[4];
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mplane_t frustum[6];
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vec3_t pvsorigin;
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vec3_t cullorigin;
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vec3_t vieworg; // locked vieworigin
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vec3_t vforward;
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vec3_t vright;
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vec3_t vup;
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float farClip;
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uint clipFlags;
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float waveHeight; // global waveHeight
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float currentWaveHeight; // current entity waveHeight
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vec3_t visMins, visMaxs;
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float skyMins[2][6];
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float skyMaxs[2][6];
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matrix4x4 objectMatrix;
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matrix4x4 worldviewMatrix;
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matrix4x4 modelviewMatrix; // worldviewMatrix * objectMatrix
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matrix4x4 projectionMatrix;
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matrix4x4 worldviewProjectionMatrix; // worldviewMatrix * projectionMatrix
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int lightstylevalue[MAX_LIGHTSTYLES]; // value 0 - 65536
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float lightstylecolor[MAX_LIGHTSTYLES]; // color 0 - 1.0
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mplane_t clipPlane;
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} ref_instance_t;
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typedef struct
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{
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int cinTexture; // cinematic texture
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int skyTexture; // default sky texture
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int whiteTexture;
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int blackTexture;
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int defaultTexture; // use for bad textures
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int particleTexture; // particle texture
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int solidskyTexture; // quake1 solid-sky layer
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int alphaskyTexture; // quake1 alpha-sky layer
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int lightmapTextures[MAX_LIGHTMAPS];
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int skyboxTextures[6]; // skybox sides
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int skytexturenum; // this not a gl_texturenum!
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// entity lists
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cl_entity_t *static_entities[MAX_VISIBLE_PACKET]; // opaque non-moved brushes
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cl_entity_t *solid_entities[MAX_VISIBLE_PACKET]; // opaque moving or alpha brushes
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cl_entity_t *trans_entities[MAX_VISIBLE_PACKET]; // translucent brushes
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uint num_static_entities;
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uint num_solid_entities;
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uint num_trans_entities;
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uint numColors; // vertex array num colors
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uint numVertex; // vertex array num vertex
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rgb_t colorsArray[4096]; // MAXSTUDIOVERTS
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vec3_t normalArray[4096];
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vec3_t vertexArray[4096];
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// OpenGL matrix states
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qboolean modelviewIdentity;
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int visframecount; // PVS frame
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int dlightframecount; // dynamic light frame
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int framecount;
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} ref_globals_t;
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typedef struct
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{
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uint c_world_polys;
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uint c_brush_polys;
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uint c_studio_polys;
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uint c_sprite_polys;
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uint c_world_leafs;
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uint c_studio_models_drawn;
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uint c_sprite_models_drawn;
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} ref_speeds_t;
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extern ref_speeds_t r_stats;
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extern ref_params_t r_lastRefdef;
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extern ref_instance_t RI;
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extern ref_globals_t tr;
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extern float gldepthmin, gldepthmax;
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extern mleaf_t *r_viewleaf, *r_oldviewleaf;
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extern mleaf_t *r_viewleaf2, *r_oldviewleaf2;
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extern dlight_t cl_dlights[MAX_DLIGHTS];
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extern dlight_t cl_elights[MAX_ELIGHTS];
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#define r_numEntities (tr.num_solid_entities + tr.num_trans_entities)
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#define r_numStatics (tr.num_static_entities)
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//
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// gl_backend.c
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//
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void GL_BackendStartFrame( void );
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void GL_BackendEndFrame( void );
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void GL_CleanUpTextureUnits( int last );
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void GL_Bind( GLenum tmu, GLenum texnum );
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void GL_MultiTexCoord2f( GLenum texture, GLfloat s, GLfloat t );
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void GL_LoadTexMatrix( const matrix4x4 m );
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void GL_LoadMatrix( const matrix4x4 source );
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void GL_TexGen( GLenum coord, GLenum mode );
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void GL_SelectTexture( GLenum texture );
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void GL_LoadIdentityTexMatrix( void );
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void GL_SetRenderMode( int mode );
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void GL_FrontFace( GLenum front );
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void GL_SetState( int state );
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void GL_TexEnv( GLenum mode );
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void GL_Cull( GLenum cull );
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void R_ShowTextures( void );
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//
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// gl_cull.c
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//
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int R_CullModel( cl_entity_t *e, vec3_t mins, vec3_t maxs, float radius );
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qboolean R_CullBox( const vec3_t mins, const vec3_t maxs, uint clipflags );
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qboolean R_CullSphere( const vec3_t centre, const float radius, const uint clipflags );
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qboolean R_VisCullBox( const vec3_t mins, const vec3_t maxs );
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qboolean R_VisCullSphere( const vec3_t origin, float radius );
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//
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// gl_draw.c
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//
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void R_Set2DMode( qboolean enable );
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//
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// gl_image.c
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//
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void R_SetTextureParameters( void );
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gltexture_t *R_GetTexture( GLenum texnum );
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void GL_SetTextureType( GLenum texnum, GLenum type );
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int GL_LoadTexture( const char *name, const byte *buf, size_t size, int flags );
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int GL_LoadTextureInternal( const char *name, rgbdata_t *pic, texFlags_t flags, qboolean update );
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byte *GL_ResampleTexture( const byte *source, int in_w, int in_h, int out_w, int out_h, qboolean isNormalMap );
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void GL_FreeTexture( GLenum texnum );
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void GL_FreeImage( const char *name );
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void R_TextureList_f( void );
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void R_InitImages( void );
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void R_ShutdownImages( void );
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//
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// gl_refrag.c
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//
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void R_StoreEfrags( efrag_t **ppefrag );
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//
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// gl_rlight.c
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//
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void R_PushDlights( void );
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void R_AnimateLight( void );
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void R_MarkLights( dlight_t *light, int bit, mnode_t *node );
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void R_LightDir( const vec3_t origin, vec3_t lightDir, float radius );
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void R_LightForPoint( const vec3_t point, color24 *ambientLight, qboolean invLight, float radius );
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void R_LightForOrigin( const vec3_t origin, vec3_t dir, color24 *ambient, color24 *diffuse, float radius );
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//
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// gl_rmain.c
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//
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void R_ClearScene( void );
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void R_LoadIdentity( void );
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void R_DrawCubemapView( const vec3_t origin, const vec3_t angles, int size );
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qboolean R_WorldToScreen2( const vec3_t in, vec3_t out );
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void R_TranslateForEntity( cl_entity_t *e );
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void R_RotateForEntity( cl_entity_t *e );
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//
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// gl_rmath.c
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//
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void R_InitMathlib( void );
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void R_LatLongToNorm( const byte latlong[2], vec3_t normal );
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void R_NormToLatLong( const vec3_t normal, byte latlong[2] );
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float V_CalcFov( float *fov_x, float width, float height );
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void V_AdjustFov( float *fov_x, float *fov_y, float width, float height, qboolean lock_x );
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byte R_FloatToByte( float x );
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//
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// gl_rsurf.c
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//
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void R_MarkLeaves( void );
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void R_DrawWorld( void );
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void R_DrawWaterSurfaces( void );
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void R_DrawBrushModel( cl_entity_t *e );
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void GL_SubdivideSurface( msurface_t *fa );
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void GL_BuildPolygonFromSurface( msurface_t *fa );
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void GL_BuildLightmaps( void );
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//
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// gl_sprite.c
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//
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void R_SpriteInit( void );
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void Mod_LoadSpriteModel( model_t *mod, const void *buffer );
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mspriteframe_t *R_GetSpriteFrame( const model_t *pModel, int frame, float yaw );
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void R_DrawSpriteModel( cl_entity_t *e );
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//
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// gl_studio.c
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//
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void R_StudioInit( void );
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void Mod_LoadStudioModel( model_t *mod, const void *buffer );
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void R_DrawStudioModel( cl_entity_t *e );
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//
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// gl_warp.c
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//
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void R_InitSky( struct mip_s *mt, struct texture_s *tx );
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void R_AddSkyBoxSurface( msurface_t *fa );
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void R_ClearSkyBox( void );
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void R_DrawSkyBox( void );
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void EmitSkyLayers( msurface_t *fa );
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void EmitSkyPolys( msurface_t *fa );
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void EmitWaterPolys( glpoly_t *polys );
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void R_DrawSkyChain( msurface_t *s );
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//
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// gl_vidnt.c
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//
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#define GL_CheckForErrors() GL_CheckForErrors_( __FILE__, __LINE__ )
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void GL_CheckForErrors_( const char *filename, const int fileline );
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void GL_UpdateSwapInterval( void );
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void GL_UpdateGammaRamp( void );
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qboolean GL_DeleteContext( void );
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qboolean GL_Support( int r_ext );
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void VID_CheckChanges( void );
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qboolean R_Init( void );
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void R_Shutdown( void );
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/*
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=======================================================================
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GL STATE MACHINE
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=======================================================================
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*/
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enum
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{
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GL_OPENGL_110 = 0, // base
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GL_WGL_SWAPCONTROL,
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GL_HARDWARE_GAMMA_CONTROL,
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GL_ARB_VERTEX_BUFFER_OBJECT_EXT,
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GL_ENV_COMBINE_EXT,
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GL_ARB_MULTITEXTURE,
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GL_TEXTURECUBEMAP_EXT,
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GL_DOT3_ARB_EXT,
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GL_ANISOTROPY_EXT,
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GL_TEXTURE_LODBIAS,
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GL_OCCLUSION_QUERIES_EXT,
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GL_TEXTURE_COMPRESSION_EXT,
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GL_SHADER_GLSL100_EXT,
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GL_WGL_3DFX_GAMMA_CONTROL,
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GL_SGIS_MIPMAPS_EXT,
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GL_DRAW_RANGEELEMENTS_EXT,
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GL_LOCKARRAYS_EXT,
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GL_TEXTURE_3D_EXT,
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GL_CLAMPTOEDGE_EXT,
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GL_BLEND_MINMAX_EXT,
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GL_STENCILTWOSIDE_EXT,
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GL_BLEND_SUBTRACT_EXT,
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GL_SHADER_OBJECTS_EXT,
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GL_VERTEX_SHADER_EXT, // glsl vertex program
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GL_FRAGMENT_SHADER_EXT, // glsl fragment program
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GL_EXT_POINTPARAMETERS,
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GL_SEPARATESTENCIL_EXT,
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GL_ARB_TEXTURE_NPOT_EXT,
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GL_CUSTOM_VERTEX_ARRAY_EXT,
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GL_TEXTURE_ENV_ADD_EXT,
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GL_CLAMP_TEXBORDER_EXT,
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GL_DEPTH_TEXTURE,
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GL_SHADOW_EXT,
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GL_EXTCOUNT, // must be last
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};
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enum
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{
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GL_TEXTURE0 = 0,
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GL_TEXTURE1,
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GL_TEXTURE2,
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GL_TEXTURE3, // g-cont. 4 units should be enough
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MAX_TEXTURE_UNITS // must be last
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};
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typedef struct
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{
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const char *renderer_string; // ptrs to OpenGL32.dll, use with caution
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const char *vendor_string;
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const char *version_string;
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// list of supported extensions
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const char *extensions_string;
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byte extension[GL_EXTCOUNT];
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int max_texture_units;
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GLint max_2d_texture_size;
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GLint max_2d_rectangle_size;
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GLint max_3d_texture_size;
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GLint max_cubemap_size;
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GLint texRectangle;
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GLfloat max_texture_anisotropy;
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GLfloat max_texture_lodbias;
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int color_bits;
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int alpha_bits;
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int depth_bits;
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int stencil_bits;
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qboolean deviceSupportsGamma;
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int prev_mode;
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} glconfig_t;
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typedef struct
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{
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int flags;
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word gammaRamp[768]; // current gamma ramp
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word stateRamp[768]; // original gamma ramp
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int width, height;
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qboolean fullScreen;
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qboolean wideScreen;
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qboolean initializedMedia;
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int activeTMU;
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GLuint currentTextures[MAX_TEXTURE_UNITS];
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GLenum currentEnvModes[MAX_TEXTURE_UNITS];
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GLboolean texIdentityMatrix[MAX_TEXTURE_UNITS];
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GLint genSTEnabled[MAX_TEXTURE_UNITS]; // 0 - disabled, OR 1 - S, OR 2 - T, OR 4 - R
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GLint texCoordArrayMode[MAX_TEXTURE_UNITS]; // 0 - disabled, 1 - enabled, 2 - cubemap
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int faceCull;
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int frontFace;
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qboolean stencilEnabled;
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qboolean in2DMode;
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} glstate_t;
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typedef struct
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{
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HDC hDC; // handle to device context
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HGLRC hGLRC; // handle to GL rendering context
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int desktopBitsPixel;
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int desktopWidth;
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int desktopHeight;
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qboolean software; // OpenGL software emulation
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qboolean initialized; // OpenGL subsystem started
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qboolean minidriver; // 3dfx driver
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} glwstate_t;
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extern glconfig_t glConfig;
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extern glstate_t glState;
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extern glwstate_t glw_state;
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//
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// renderer cvars
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//
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extern convar_t *gl_allow_software;
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extern convar_t *gl_texture_anisotropy;
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extern convar_t *gl_extensions;
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extern convar_t *gl_colorbits;
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extern convar_t *gl_depthbits;
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extern convar_t *gl_stencilbits;
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extern convar_t *gl_texturebits;
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extern convar_t *gl_ignorehwgamma;
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extern convar_t *gl_swapInterval;
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extern convar_t *gl_check_errors;
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extern convar_t *gl_round_down;
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extern convar_t *gl_texturemode;
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extern convar_t *gl_texture_lodbias;
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extern convar_t *gl_showtextures;
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extern convar_t *gl_compress_textures;
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extern convar_t *gl_picmip;
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extern convar_t *gl_skymip;
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extern convar_t *gl_nobind;
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extern convar_t *gl_finish;
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extern convar_t *gl_clear;
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extern convar_t *gl_test; // cvar to testify new effects
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extern convar_t *r_width;
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extern convar_t *r_height;
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extern convar_t *r_speeds;
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extern convar_t *r_fullbright;
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extern convar_t *r_norefresh;
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extern convar_t *r_lighting_modulate;
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extern convar_t *r_lighting_ambient;
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extern convar_t *r_lighting_direct;
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extern convar_t *r_faceplanecull;
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extern convar_t *r_drawentities;
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extern convar_t *r_adjust_fov;
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extern convar_t *r_lefthand;
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extern convar_t *r_novis;
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extern convar_t *r_nocull;
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extern convar_t *r_lockpvs;
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extern convar_t *r_lockcull;
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extern convar_t *r_wateralpha;
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extern convar_t *r_dynamic;
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extern convar_t *r_lightmap;
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extern convar_t *r_shadows;
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extern convar_t *r_fastsky;
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extern convar_t *vid_displayfrequency;
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extern convar_t *vid_fullscreen;
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extern convar_t *vid_gamma;
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extern convar_t *vid_mode;
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#endif//GL_LOCAL_H
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