summaryrefslogtreecommitdiff
path: root/src/renderer/tr_local.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/renderer/tr_local.h')
-rw-r--r--src/renderer/tr_local.h1668
1 files changed, 1668 insertions, 0 deletions
diff --git a/src/renderer/tr_local.h b/src/renderer/tr_local.h
new file mode 100644
index 0000000..7c69475
--- /dev/null
+++ b/src/renderer/tr_local.h
@@ -0,0 +1,1668 @@
+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+Copyright (C) 2000-2006 Tim Angus
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+
+#ifndef TR_LOCAL_H
+#define TR_LOCAL_H
+
+#include "../qcommon/q_shared.h"
+#include "../qcommon/qfiles.h"
+#include "../qcommon/qcommon.h"
+#include "tr_public.h"
+#include "qgl.h"
+
+#define GL_INDEX_TYPE GL_UNSIGNED_INT
+typedef unsigned int glIndex_t;
+
+// fast float to int conversion
+#if id386 && !defined(__GNUC__)
+long myftol( float f );
+#else
+#define myftol(x) ((int)(x))
+#endif
+
+
+// everything that is needed by the backend needs
+// to be double buffered to allow it to run in
+// parallel on a dual cpu machine
+#define SMP_FRAMES 2
+
+// 12 bits
+// see QSORT_SHADERNUM_SHIFT
+#define MAX_SHADERS 16384
+
+//#define MAX_SHADER_STATES 2048
+#define MAX_STATES_PER_SHADER 32
+#define MAX_STATE_NAME 32
+
+// can't be increased without changing bit packing for drawsurfs
+
+
+typedef struct dlight_s {
+ vec3_t origin;
+ vec3_t color; // range from 0.0 to 1.0, should be color normalized
+ float radius;
+
+ vec3_t transformed; // origin in local coordinate system
+ int additive; // texture detail is lost tho when the lightmap is dark
+} dlight_t;
+
+
+// a trRefEntity_t has all the information passed in by
+// the client game, as well as some locally derived info
+typedef struct {
+ refEntity_t e;
+
+ float axisLength; // compensate for non-normalized axis
+
+ qboolean needDlights; // true for bmodels that touch a dlight
+ qboolean lightingCalculated;
+ vec3_t lightDir; // normalized direction towards light
+ vec3_t ambientLight; // color normalized to 0-255
+ int ambientLightInt; // 32 bit rgba packed
+ vec3_t directedLight;
+} trRefEntity_t;
+
+
+typedef struct {
+ vec3_t origin; // in world coordinates
+ vec3_t axis[3]; // orientation in world
+ vec3_t viewOrigin; // viewParms->or.origin in local coordinates
+ float modelMatrix[16];
+} orientationr_t;
+
+typedef struct image_s {
+ char imgName[MAX_QPATH]; // game path, including extension
+ int width, height; // source image
+ int uploadWidth, uploadHeight; // after power of two and picmip but not including clamp to MAX_TEXTURE_SIZE
+ GLuint texnum; // gl texture binding
+
+ int frameUsed; // for texture usage in frame statistics
+
+ int internalFormat;
+ int TMU; // only needed for voodoo2
+
+ qboolean mipmap;
+ qboolean allowPicmip;
+ int wrapClampMode; // GL_CLAMP or GL_REPEAT
+
+ struct image_s* next;
+} image_t;
+
+//===============================================================================
+
+typedef enum {
+ SS_BAD,
+ SS_PORTAL, // mirrors, portals, viewscreens
+ SS_ENVIRONMENT, // sky box
+ SS_OPAQUE, // opaque
+
+ SS_DECAL, // scorch marks, etc.
+ SS_SEE_THROUGH, // ladders, grates, grills that may have small blended edges
+ // in addition to alpha test
+ SS_BANNER,
+
+ SS_FOG,
+
+ SS_UNDERWATER, // for items that should be drawn in front of the water plane
+
+ SS_BLEND0, // regular transparency and filters
+ SS_BLEND1, // generally only used for additive type effects
+ SS_BLEND2,
+ SS_BLEND3,
+
+ SS_BLEND6,
+ SS_STENCIL_SHADOW,
+ SS_ALMOST_NEAREST, // gun smoke puffs
+
+ SS_NEAREST // blood blobs
+} shaderSort_t;
+
+
+#define MAX_SHADER_STAGES 8
+
+typedef enum {
+ GF_NONE,
+
+ GF_SIN,
+ GF_SQUARE,
+ GF_TRIANGLE,
+ GF_SAWTOOTH,
+ GF_INVERSE_SAWTOOTH,
+
+ GF_NOISE
+
+} genFunc_t;
+
+
+typedef enum {
+ DEFORM_NONE,
+ DEFORM_WAVE,
+ DEFORM_NORMALS,
+ DEFORM_BULGE,
+ DEFORM_MOVE,
+ DEFORM_PROJECTION_SHADOW,
+ DEFORM_AUTOSPRITE,
+ DEFORM_AUTOSPRITE2,
+ DEFORM_TEXT0,
+ DEFORM_TEXT1,
+ DEFORM_TEXT2,
+ DEFORM_TEXT3,
+ DEFORM_TEXT4,
+ DEFORM_TEXT5,
+ DEFORM_TEXT6,
+ DEFORM_TEXT7
+} deform_t;
+
+typedef enum {
+ AGEN_IDENTITY,
+ AGEN_SKIP,
+ AGEN_ENTITY,
+ AGEN_ONE_MINUS_ENTITY,
+ AGEN_VERTEX,
+ AGEN_ONE_MINUS_VERTEX,
+ AGEN_LIGHTING_SPECULAR,
+ AGEN_WAVEFORM,
+ AGEN_PORTAL,
+ AGEN_CONST
+} alphaGen_t;
+
+typedef enum {
+ CGEN_BAD,
+ CGEN_IDENTITY_LIGHTING, // tr.identityLight
+ CGEN_IDENTITY, // always (1,1,1,1)
+ CGEN_ENTITY, // grabbed from entity's modulate field
+ CGEN_ONE_MINUS_ENTITY, // grabbed from 1 - entity.modulate
+ CGEN_EXACT_VERTEX, // tess.vertexColors
+ CGEN_VERTEX, // tess.vertexColors * tr.identityLight
+ CGEN_ONE_MINUS_VERTEX,
+ CGEN_WAVEFORM, // programmatically generated
+ CGEN_LIGHTING_DIFFUSE,
+ CGEN_FOG, // standard fog
+ CGEN_CONST // fixed color
+} colorGen_t;
+
+typedef enum {
+ TCGEN_BAD,
+ TCGEN_IDENTITY, // clear to 0,0
+ TCGEN_LIGHTMAP,
+ TCGEN_TEXTURE,
+ TCGEN_ENVIRONMENT_MAPPED,
+ TCGEN_FOG,
+ TCGEN_VECTOR // S and T from world coordinates
+} texCoordGen_t;
+
+typedef enum {
+ ACFF_NONE,
+ ACFF_MODULATE_RGB,
+ ACFF_MODULATE_RGBA,
+ ACFF_MODULATE_ALPHA
+} acff_t;
+
+typedef struct {
+ genFunc_t func;
+
+ float base;
+ float amplitude;
+ float phase;
+ float frequency;
+} waveForm_t;
+
+#define TR_MAX_TEXMODS 4
+
+typedef enum {
+ TMOD_NONE,
+ TMOD_TRANSFORM,
+ TMOD_TURBULENT,
+ TMOD_SCROLL,
+ TMOD_SCALE,
+ TMOD_STRETCH,
+ TMOD_ROTATE,
+ TMOD_ENTITY_TRANSLATE
+} texMod_t;
+
+#define MAX_SHADER_DEFORMS 3
+typedef struct {
+ deform_t deformation; // vertex coordinate modification type
+
+ vec3_t moveVector;
+ waveForm_t deformationWave;
+ float deformationSpread;
+
+ float bulgeWidth;
+ float bulgeHeight;
+ float bulgeSpeed;
+} deformStage_t;
+
+
+typedef struct {
+ texMod_t type;
+
+ // used for TMOD_TURBULENT and TMOD_STRETCH
+ waveForm_t wave;
+
+ // used for TMOD_TRANSFORM
+ float matrix[2][2]; // s' = s * m[0][0] + t * m[1][0] + trans[0]
+ float translate[2]; // t' = s * m[0][1] + t * m[0][1] + trans[1]
+
+ // used for TMOD_SCALE
+ float scale[2]; // s *= scale[0]
+ // t *= scale[1]
+
+ // used for TMOD_SCROLL
+ float scroll[2]; // s' = s + scroll[0] * time
+ // t' = t + scroll[1] * time
+
+ // + = clockwise
+ // - = counterclockwise
+ float rotateSpeed;
+
+} texModInfo_t;
+
+
+#define MAX_IMAGE_ANIMATIONS 8
+
+typedef struct {
+ image_t *image[MAX_IMAGE_ANIMATIONS];
+ int numImageAnimations;
+ float imageAnimationSpeed;
+
+ texCoordGen_t tcGen;
+ vec3_t tcGenVectors[2];
+
+ int numTexMods;
+ texModInfo_t *texMods;
+
+ int videoMapHandle;
+ qboolean isLightmap;
+ qboolean vertexLightmap;
+ qboolean isVideoMap;
+} textureBundle_t;
+
+#define NUM_TEXTURE_BUNDLES 2
+
+typedef struct {
+ qboolean active;
+
+ textureBundle_t bundle[NUM_TEXTURE_BUNDLES];
+
+ waveForm_t rgbWave;
+ colorGen_t rgbGen;
+
+ waveForm_t alphaWave;
+ alphaGen_t alphaGen;
+
+ byte constantColor[4]; // for CGEN_CONST and AGEN_CONST
+
+ unsigned stateBits; // GLS_xxxx mask
+
+ acff_t adjustColorsForFog;
+
+ qboolean isDetail;
+} shaderStage_t;
+
+struct shaderCommands_s;
+
+#define LIGHTMAP_2D -4 // shader is for 2D rendering
+#define LIGHTMAP_BY_VERTEX -3 // pre-lit triangle models
+#define LIGHTMAP_WHITEIMAGE -2
+#define LIGHTMAP_NONE -1
+
+typedef enum {
+ CT_FRONT_SIDED,
+ CT_BACK_SIDED,
+ CT_TWO_SIDED
+} cullType_t;
+
+typedef enum {
+ FP_NONE, // surface is translucent and will just be adjusted properly
+ FP_EQUAL, // surface is opaque but possibly alpha tested
+ FP_LE // surface is trnaslucent, but still needs a fog pass (fog surface)
+} fogPass_t;
+
+typedef struct {
+ float cloudHeight;
+ image_t *outerbox[6], *innerbox[6];
+} skyParms_t;
+
+typedef struct {
+ vec3_t color;
+ float depthForOpaque;
+} fogParms_t;
+
+
+typedef struct shader_s {
+ char name[MAX_QPATH]; // game path, including extension
+ int lightmapIndex; // for a shader to match, both name and lightmapIndex must match
+
+ int index; // this shader == tr.shaders[index]
+ int sortedIndex; // this shader == tr.sortedShaders[sortedIndex]
+
+ float sort; // lower numbered shaders draw before higher numbered
+
+ qboolean defaultShader; // we want to return index 0 if the shader failed to
+ // load for some reason, but R_FindShader should
+ // still keep a name allocated for it, so if
+ // something calls RE_RegisterShader again with
+ // the same name, we don't try looking for it again
+
+ qboolean explicitlyDefined; // found in a .shader file
+
+ int surfaceFlags; // if explicitlyDefined, this will have SURF_* flags
+ int contentFlags;
+
+ qboolean entityMergable; // merge across entites optimizable (smoke, blood)
+
+ qboolean isSky;
+ skyParms_t sky;
+ fogParms_t fogParms;
+
+ float portalRange; // distance to fog out at
+
+ int multitextureEnv; // 0, GL_MODULATE, GL_ADD (FIXME: put in stage)
+
+ cullType_t cullType; // CT_FRONT_SIDED, CT_BACK_SIDED, or CT_TWO_SIDED
+ qboolean polygonOffset; // set for decals and other items that must be offset
+ qboolean noMipMaps; // for console fonts, 2D elements, etc.
+ qboolean noPicMip; // for images that must always be full resolution
+
+ fogPass_t fogPass; // draw a blended pass, possibly with depth test equals
+
+ qboolean needsNormal; // not all shaders will need all data to be gathered
+ qboolean needsST1;
+ qboolean needsST2;
+ qboolean needsColor;
+
+ int numDeforms;
+ deformStage_t deforms[MAX_SHADER_DEFORMS];
+
+ int numUnfoggedPasses;
+ shaderStage_t *stages[MAX_SHADER_STAGES];
+
+ void (*optimalStageIteratorFunc)( void );
+
+ float clampTime; // time this shader is clamped to
+ float timeOffset; // current time offset for this shader
+
+ int numStates; // if non-zero this is a state shader
+ struct shader_s *currentShader; // current state if this is a state shader
+ struct shader_s *parentShader; // current state if this is a state shader
+ int currentState; // current state index for cycle purposes
+ long expireTime; // time in milliseconds this expires
+
+ struct shader_s *remappedShader; // current shader this one is remapped too
+
+ int shaderStates[MAX_STATES_PER_SHADER]; // index to valid shader states
+
+ struct shader_s *next;
+} shader_t;
+
+typedef struct shaderState_s {
+ char shaderName[MAX_QPATH]; // name of shader this state belongs to
+ char name[MAX_STATE_NAME]; // name of this state
+ char stateShader[MAX_QPATH]; // shader this name invokes
+ int cycleTime; // time this cycle lasts, <= 0 is forever
+ shader_t *shader;
+} shaderState_t;
+
+
+// trRefdef_t holds everything that comes in refdef_t,
+// as well as the locally generated scene information
+typedef struct {
+ int x, y, width, height;
+ float fov_x, fov_y;
+ vec3_t vieworg;
+ vec3_t viewaxis[3]; // transformation matrix
+
+ int time; // time in milliseconds for shader effects and other time dependent rendering issues
+ int rdflags; // RDF_NOWORLDMODEL, etc
+
+ // 1 bits will prevent the associated area from rendering at all
+ byte areamask[MAX_MAP_AREA_BYTES];
+ qboolean areamaskModified; // qtrue if areamask changed since last scene
+
+ float floatTime; // tr.refdef.time / 1000.0
+
+ // text messages for deform text shaders
+ char text[MAX_RENDER_STRINGS][MAX_RENDER_STRING_LENGTH];
+
+ int num_entities;
+ trRefEntity_t *entities;
+
+ int num_dlights;
+ struct dlight_s *dlights;
+
+ int numPolys;
+ struct srfPoly_s *polys;
+
+ int numDrawSurfs;
+ struct drawSurf_s *drawSurfs;
+
+
+} trRefdef_t;
+
+
+//=================================================================================
+
+// skins allow models to be retextured without modifying the model file
+typedef struct {
+ char name[MAX_QPATH];
+ shader_t *shader;
+} skinSurface_t;
+
+typedef struct skin_s {
+ char name[MAX_QPATH]; // game path, including extension
+ int numSurfaces;
+ skinSurface_t *surfaces[MD3_MAX_SURFACES];
+} skin_t;
+
+
+typedef struct {
+ int originalBrushNumber;
+ vec3_t bounds[2];
+
+ unsigned colorInt; // in packed byte format
+ float tcScale; // texture coordinate vector scales
+ fogParms_t parms;
+
+ // for clipping distance in fog when outside
+ qboolean hasSurface;
+ float surface[4];
+} fog_t;
+
+typedef struct {
+ orientationr_t or;
+ orientationr_t world;
+ vec3_t pvsOrigin; // may be different than or.origin for portals
+ qboolean isPortal; // true if this view is through a portal
+ qboolean isMirror; // the portal is a mirror, invert the face culling
+ int frameSceneNum; // copied from tr.frameSceneNum
+ int frameCount; // copied from tr.frameCount
+ cplane_t portalPlane; // clip anything behind this if mirroring
+ int viewportX, viewportY, viewportWidth, viewportHeight;
+ float fovX, fovY;
+ float projectionMatrix[16];
+ cplane_t frustum[4];
+ vec3_t visBounds[2];
+ float zFar;
+} viewParms_t;
+
+
+/*
+==============================================================================
+
+SURFACES
+
+==============================================================================
+*/
+
+// any changes in surfaceType must be mirrored in rb_surfaceTable[]
+typedef enum {
+ SF_BAD,
+ SF_SKIP, // ignore
+ SF_FACE,
+ SF_GRID,
+ SF_TRIANGLES,
+ SF_POLY,
+ SF_MD3,
+ SF_MD4,
+#ifdef RAVENMD4
+ SF_MDR,
+#endif
+ SF_FLARE,
+ SF_ENTITY, // beams, rails, lightning, etc that can be determined by entity
+ SF_DISPLAY_LIST,
+
+ SF_NUM_SURFACE_TYPES,
+ SF_MAX = 0x7fffffff // ensures that sizeof( surfaceType_t ) == sizeof( int )
+} surfaceType_t;
+
+typedef struct drawSurf_s {
+ unsigned sort; // bit combination for fast compares
+ surfaceType_t *surface; // any of surface*_t
+} drawSurf_t;
+
+#define MAX_FACE_POINTS 64
+
+#define MAX_PATCH_SIZE 32 // max dimensions of a patch mesh in map file
+#define MAX_GRID_SIZE 65 // max dimensions of a grid mesh in memory
+
+// when cgame directly specifies a polygon, it becomes a srfPoly_t
+// as soon as it is called
+typedef struct srfPoly_s {
+ surfaceType_t surfaceType;
+ qhandle_t hShader;
+ int fogIndex;
+ int numVerts;
+ polyVert_t *verts;
+} srfPoly_t;
+
+typedef struct srfDisplayList_s {
+ surfaceType_t surfaceType;
+ int listNum;
+} srfDisplayList_t;
+
+
+typedef struct srfFlare_s {
+ surfaceType_t surfaceType;
+ vec3_t origin;
+ vec3_t normal;
+ vec3_t color;
+} srfFlare_t;
+
+typedef struct srfGridMesh_s {
+ surfaceType_t surfaceType;
+
+ // dynamic lighting information
+ int dlightBits[SMP_FRAMES];
+
+ // culling information
+ vec3_t meshBounds[2];
+ vec3_t localOrigin;
+ float meshRadius;
+
+ // lod information, which may be different
+ // than the culling information to allow for
+ // groups of curves that LOD as a unit
+ vec3_t lodOrigin;
+ float lodRadius;
+ int lodFixed;
+ int lodStitched;
+
+ // vertexes
+ int width, height;
+ float *widthLodError;
+ float *heightLodError;
+ drawVert_t verts[1]; // variable sized
+} srfGridMesh_t;
+
+
+
+#define VERTEXSIZE 8
+typedef struct {
+ surfaceType_t surfaceType;
+ cplane_t plane;
+
+ // dynamic lighting information
+ int dlightBits[SMP_FRAMES];
+
+ // triangle definitions (no normals at points)
+ int numPoints;
+ int numIndices;
+ int ofsIndices;
+ float points[1][VERTEXSIZE]; // variable sized
+ // there is a variable length list of indices here also
+} srfSurfaceFace_t;
+
+
+// misc_models in maps are turned into direct geometry by q3map
+typedef struct {
+ surfaceType_t surfaceType;
+
+ // dynamic lighting information
+ int dlightBits[SMP_FRAMES];
+
+ // culling information (FIXME: use this!)
+ vec3_t bounds[2];
+ vec3_t localOrigin;
+ float radius;
+
+ // triangle definitions
+ int numIndexes;
+ int *indexes;
+
+ int numVerts;
+ drawVert_t *verts;
+} srfTriangles_t;
+
+
+extern void (*rb_surfaceTable[SF_NUM_SURFACE_TYPES])(void *);
+
+/*
+==============================================================================
+
+BRUSH MODELS
+
+==============================================================================
+*/
+
+
+//
+// in memory representation
+//
+
+#define SIDE_FRONT 0
+#define SIDE_BACK 1
+#define SIDE_ON 2
+
+typedef struct msurface_s {
+ int viewCount; // if == tr.viewCount, already added
+ struct shader_s *shader;
+ int fogIndex;
+
+ surfaceType_t *data; // any of srf*_t
+} msurface_t;
+
+
+
+#define CONTENTS_NODE -1
+typedef struct mnode_s {
+ // common with leaf and node
+ int contents; // -1 for nodes, to differentiate from leafs
+ int visframe; // node needs to be traversed if current
+ vec3_t mins, maxs; // for bounding box culling
+ struct mnode_s *parent;
+
+ // node specific
+ cplane_t *plane;
+ struct mnode_s *children[2];
+
+ // leaf specific
+ int cluster;
+ int area;
+
+ msurface_t **firstmarksurface;
+ int nummarksurfaces;
+} mnode_t;
+
+typedef struct {
+ vec3_t bounds[2]; // for culling
+ msurface_t *firstSurface;
+ int numSurfaces;
+} bmodel_t;
+
+typedef struct {
+ char name[MAX_QPATH]; // ie: maps/tim_dm2.bsp
+ char baseName[MAX_QPATH]; // ie: tim_dm2
+
+ int dataSize;
+
+ int numShaders;
+ dshader_t *shaders;
+
+ bmodel_t *bmodels;
+
+ int numplanes;
+ cplane_t *planes;
+
+ int numnodes; // includes leafs
+ int numDecisionNodes;
+ mnode_t *nodes;
+
+ int numsurfaces;
+ msurface_t *surfaces;
+
+ int nummarksurfaces;
+ msurface_t **marksurfaces;
+
+ int numfogs;
+ fog_t *fogs;
+
+ vec3_t lightGridOrigin;
+ vec3_t lightGridSize;
+ vec3_t lightGridInverseSize;
+ int lightGridBounds[3];
+ byte *lightGridData;
+
+
+ int numClusters;
+ int clusterBytes;
+ const byte *vis; // may be passed in by CM_LoadMap to save space
+
+ byte *novis; // clusterBytes of 0xff
+
+ char *entityString;
+ char *entityParsePoint;
+} world_t;
+
+//======================================================================
+
+typedef enum {
+ MOD_BAD,
+ MOD_BRUSH,
+ MOD_MESH,
+ MOD_MD4,
+#ifdef RAVENMD4
+ MOD_MDR
+#endif
+} modtype_t;
+
+typedef struct model_s {
+ char name[MAX_QPATH];
+ modtype_t type;
+ int index; // model = tr.models[model->index]
+
+ int dataSize; // just for listing purposes
+ bmodel_t *bmodel; // only if type == MOD_BRUSH
+ md3Header_t *md3[MD3_MAX_LODS]; // only if type == MOD_MESH
+ void *md4; // only if type == (MOD_MD4 | MOD_MDR)
+
+ int numLods;
+} model_t;
+
+
+#define MAX_MOD_KNOWN 1024
+
+void R_ModelInit (void);
+model_t *R_GetModelByHandle( qhandle_t hModel );
+int R_LerpTag( orientation_t *tag, qhandle_t handle, int startFrame, int endFrame,
+ float frac, const char *tagName );
+void R_ModelBounds( qhandle_t handle, vec3_t mins, vec3_t maxs );
+
+void R_Modellist_f (void);
+
+//====================================================
+extern refimport_t ri;
+
+#define MAX_DRAWIMAGES 2048
+#define MAX_LIGHTMAPS 256
+#define MAX_SKINS 1024
+
+
+#define MAX_DRAWSURFS 0x10000
+#define DRAWSURF_MASK (MAX_DRAWSURFS-1)
+
+/*
+
+the drawsurf sort data is packed into a single 32 bit value so it can be
+compared quickly during the qsorting process
+
+the bits are allocated as follows:
+
+21 - 31 : sorted shader index
+11 - 20 : entity index
+2 - 6 : fog index
+//2 : used to be clipped flag REMOVED - 03.21.00 rad
+0 - 1 : dlightmap index
+
+ TTimo - 1.32
+17-31 : sorted shader index
+7-16 : entity index
+2-6 : fog index
+0-1 : dlightmap index
+*/
+#define QSORT_SHADERNUM_SHIFT 17
+#define QSORT_ENTITYNUM_SHIFT 7
+#define QSORT_FOGNUM_SHIFT 2
+
+extern int gl_filter_min, gl_filter_max;
+
+/*
+** performanceCounters_t
+*/
+typedef struct {
+ int c_sphere_cull_patch_in, c_sphere_cull_patch_clip, c_sphere_cull_patch_out;
+ int c_box_cull_patch_in, c_box_cull_patch_clip, c_box_cull_patch_out;
+ int c_sphere_cull_md3_in, c_sphere_cull_md3_clip, c_sphere_cull_md3_out;
+ int c_box_cull_md3_in, c_box_cull_md3_clip, c_box_cull_md3_out;
+
+ int c_leafs;
+ int c_dlightSurfaces;
+ int c_dlightSurfacesCulled;
+} frontEndCounters_t;
+
+#define FOG_TABLE_SIZE 256
+#define FUNCTABLE_SIZE 1024
+#define FUNCTABLE_SIZE2 10
+#define FUNCTABLE_MASK (FUNCTABLE_SIZE-1)
+
+
+// the renderer front end should never modify glstate_t
+typedef struct {
+ int currenttextures[2];
+ int currenttmu;
+ qboolean finishCalled;
+ int texEnv[2];
+ int faceCulling;
+ unsigned long glStateBits;
+} glstate_t;
+
+
+typedef struct {
+ int c_surfaces, c_shaders, c_vertexes, c_indexes, c_totalIndexes;
+ float c_overDraw;
+
+ int c_dlightVertexes;
+ int c_dlightIndexes;
+
+ int c_flareAdds;
+ int c_flareTests;
+ int c_flareRenders;
+
+ int msec; // total msec for backend run
+} backEndCounters_t;
+
+// all state modified by the back end is seperated
+// from the front end state
+typedef struct {
+ int smpFrame;
+ trRefdef_t refdef;
+ viewParms_t viewParms;
+ orientationr_t or;
+ backEndCounters_t pc;
+ qboolean isHyperspace;
+ trRefEntity_t *currentEntity;
+ qboolean skyRenderedThisView; // flag for drawing sun
+
+ qboolean projection2D; // if qtrue, drawstretchpic doesn't need to change modes
+ byte color2D[4];
+ qboolean vertexes2D; // shader needs to be finished
+ trRefEntity_t entity2D; // currentEntity will point at this when doing 2D rendering
+} backEndState_t;
+
+/*
+** trGlobals_t
+**
+** Most renderer globals are defined here.
+** backend functions should never modify any of these fields,
+** but may read fields that aren't dynamically modified
+** by the frontend.
+*/
+typedef struct {
+ qboolean registered; // cleared at shutdown, set at beginRegistration
+
+ int visCount; // incremented every time a new vis cluster is entered
+ int frameCount; // incremented every frame
+ int sceneCount; // incremented every scene
+ int viewCount; // incremented every view (twice a scene if portaled)
+ // and every R_MarkFragments call
+
+ int smpFrame; // toggles from 0 to 1 every endFrame
+
+ int frameSceneNum; // zeroed at RE_BeginFrame
+
+ qboolean worldMapLoaded;
+ world_t *world;
+
+ const byte *externalVisData; // from RE_SetWorldVisData, shared with CM_Load
+
+ image_t *defaultImage;
+ image_t *scratchImage[32];
+ image_t *fogImage;
+ image_t *dlightImage; // inverse-quare highlight for projective adding
+ image_t *flareImage;
+ image_t *whiteImage; // full of 0xff
+ image_t *identityLightImage; // full of tr.identityLightByte
+
+ shader_t *defaultShader;
+ shader_t *shadowShader;
+ shader_t *projectionShadowShader;
+
+ shader_t *flareShader;
+ shader_t *sunShader;
+
+ int numLightmaps;
+ image_t *lightmaps[MAX_LIGHTMAPS];
+
+ trRefEntity_t *currentEntity;
+ trRefEntity_t worldEntity; // point currentEntity at this when rendering world
+ int currentEntityNum;
+ int shiftedEntityNum; // currentEntityNum << QSORT_ENTITYNUM_SHIFT
+ model_t *currentModel;
+
+ viewParms_t viewParms;
+
+ float identityLight; // 1.0 / ( 1 << overbrightBits )
+ int identityLightByte; // identityLight * 255
+ int overbrightBits; // r_overbrightBits->integer, but set to 0 if no hw gamma
+
+ orientationr_t or; // for current entity
+
+ trRefdef_t refdef;
+
+ int viewCluster;
+
+ vec3_t sunLight; // from the sky shader for this level
+ vec3_t sunDirection;
+
+ frontEndCounters_t pc;
+ int frontEndMsec; // not in pc due to clearing issue
+
+ //
+ // put large tables at the end, so most elements will be
+ // within the +/32K indexed range on risc processors
+ //
+ model_t *models[MAX_MOD_KNOWN];
+ int numModels;
+
+ int numImages;
+ image_t *images[MAX_DRAWIMAGES];
+
+ // shader indexes from other modules will be looked up in tr.shaders[]
+ // shader indexes from drawsurfs will be looked up in sortedShaders[]
+ // lower indexed sortedShaders must be rendered first (opaque surfaces before translucent)
+ int numShaders;
+ shader_t *shaders[MAX_SHADERS];
+ shader_t *sortedShaders[MAX_SHADERS];
+
+ int numSkins;
+ skin_t *skins[MAX_SKINS];
+
+ float sinTable[FUNCTABLE_SIZE];
+ float squareTable[FUNCTABLE_SIZE];
+ float triangleTable[FUNCTABLE_SIZE];
+ float sawToothTable[FUNCTABLE_SIZE];
+ float inverseSawToothTable[FUNCTABLE_SIZE];
+ float fogTable[FOG_TABLE_SIZE];
+} trGlobals_t;
+
+extern backEndState_t backEnd;
+extern trGlobals_t tr;
+extern glconfig_t glConfig; // outside of TR since it shouldn't be cleared during ref re-init
+extern glstate_t glState; // outside of TR since it shouldn't be cleared during ref re-init
+
+//
+// cvars
+//
+extern cvar_t *r_flareSize;
+extern cvar_t *r_flareFade;
+// coefficient for the flare intensity falloff function.
+#define FLARE_STDCOEFF "150"
+extern cvar_t *r_flareCoeff;
+
+extern cvar_t *r_railWidth;
+extern cvar_t *r_railCoreWidth;
+extern cvar_t *r_railSegmentLength;
+
+extern cvar_t *r_ignore; // used for debugging anything
+extern cvar_t *r_verbose; // used for verbose debug spew
+extern cvar_t *r_ignoreFastPath; // allows us to ignore our Tess fast paths
+
+extern cvar_t *r_znear; // near Z clip plane
+
+extern cvar_t *r_stencilbits; // number of desired stencil bits
+extern cvar_t *r_depthbits; // number of desired depth bits
+extern cvar_t *r_colorbits; // number of desired color bits, only relevant for fullscreen
+extern cvar_t *r_stereo; // desired pixelformat stereo flag
+extern cvar_t *r_texturebits; // number of desired texture bits
+ // 0 = use framebuffer depth
+ // 16 = use 16-bit textures
+ // 32 = use 32-bit textures
+ // all else = error
+
+extern cvar_t *r_measureOverdraw; // enables stencil buffer overdraw measurement
+
+extern cvar_t *r_lodbias; // push/pull LOD transitions
+extern cvar_t *r_lodscale;
+
+extern cvar_t *r_primitives; // "0" = based on compiled vertex array existance
+ // "1" = glDrawElemet tristrips
+ // "2" = glDrawElements triangles
+ // "-1" = no drawing
+
+extern cvar_t *r_inGameVideo; // controls whether in game video should be draw
+extern cvar_t *r_fastsky; // controls whether sky should be cleared or drawn
+extern cvar_t *r_drawSun; // controls drawing of sun quad
+extern cvar_t *r_dynamiclight; // dynamic lights enabled/disabled
+extern cvar_t *r_dlightBacks; // dlight non-facing surfaces for continuity
+
+extern cvar_t *r_norefresh; // bypasses the ref rendering
+extern cvar_t *r_drawentities; // disable/enable entity rendering
+extern cvar_t *r_drawworld; // disable/enable world rendering
+extern cvar_t *r_speeds; // various levels of information display
+extern cvar_t *r_detailTextures; // enables/disables detail texturing stages
+extern cvar_t *r_novis; // disable/enable usage of PVS
+extern cvar_t *r_nocull;
+extern cvar_t *r_facePlaneCull; // enables culling of planar surfaces with back side test
+extern cvar_t *r_nocurves;
+extern cvar_t *r_showcluster;
+
+extern cvar_t *r_mode; // video mode
+extern cvar_t *r_fullscreen;
+extern cvar_t *r_gamma;
+extern cvar_t *r_displayRefresh; // optional display refresh option
+extern cvar_t *r_ignorehwgamma; // overrides hardware gamma capabilities
+
+extern cvar_t *r_allowExtensions; // global enable/disable of OpenGL extensions
+extern cvar_t *r_ext_compressed_textures; // these control use of specific extensions
+extern cvar_t *r_ext_gamma_control;
+extern cvar_t *r_ext_texenv_op;
+extern cvar_t *r_ext_multitexture;
+extern cvar_t *r_ext_compiled_vertex_array;
+extern cvar_t *r_ext_texture_env_add;
+
+extern cvar_t *r_ext_texture_filter_anisotropic;
+extern cvar_t *r_ext_max_anisotropy;
+
+extern cvar_t *r_nobind; // turns off binding to appropriate textures
+extern cvar_t *r_singleShader; // make most world faces use default shader
+extern cvar_t *r_roundImagesDown;
+extern cvar_t *r_colorMipLevels; // development aid to see texture mip usage
+extern cvar_t *r_picmip; // controls picmip values
+extern cvar_t *r_finish;
+extern cvar_t *r_drawBuffer;
+extern cvar_t *r_glDriver;
+extern cvar_t *r_swapInterval;
+extern cvar_t *r_textureMode;
+extern cvar_t *r_offsetFactor;
+extern cvar_t *r_offsetUnits;
+
+extern cvar_t *r_fullbright; // avoid lightmap pass
+extern cvar_t *r_lightmap; // render lightmaps only
+extern cvar_t *r_vertexLight; // vertex lighting mode for better performance
+extern cvar_t *r_uiFullScreen; // ui is running fullscreen
+
+extern cvar_t *r_logFile; // number of frames to emit GL logs
+extern cvar_t *r_showtris; // enables wireframe rendering of the world
+extern cvar_t *r_showsky; // forces sky in front of all surfaces
+extern cvar_t *r_shownormals; // draws wireframe normals
+extern cvar_t *r_clear; // force screen clear every frame
+
+extern cvar_t *r_shadows; // controls shadows: 0 = none, 1 = blur, 2 = stencil, 3 = black planar projection
+extern cvar_t *r_flares; // light flares
+
+extern cvar_t *r_intensity;
+
+extern cvar_t *r_lockpvs;
+extern cvar_t *r_noportals;
+extern cvar_t *r_portalOnly;
+
+extern cvar_t *r_subdivisions;
+extern cvar_t *r_lodCurveError;
+extern cvar_t *r_smp;
+extern cvar_t *r_showSmp;
+extern cvar_t *r_skipBackEnd;
+
+extern cvar_t *r_ignoreGLErrors;
+
+extern cvar_t *r_overBrightBits;
+extern cvar_t *r_mapOverBrightBits;
+
+extern cvar_t *r_debugSurface;
+extern cvar_t *r_simpleMipMaps;
+
+extern cvar_t *r_showImages;
+extern cvar_t *r_debugSort;
+
+extern cvar_t *r_printShaders;
+extern cvar_t *r_saveFontData;
+
+extern cvar_t *r_GLlibCoolDownMsec;
+
+//====================================================================
+
+float R_NoiseGet4f( float x, float y, float z, float t );
+void R_NoiseInit( void );
+
+void R_SwapBuffers( int );
+
+void R_RenderView( viewParms_t *parms );
+
+void R_AddMD3Surfaces( trRefEntity_t *e );
+void R_AddNullModelSurfaces( trRefEntity_t *e );
+void R_AddBeamSurfaces( trRefEntity_t *e );
+void R_AddRailSurfaces( trRefEntity_t *e, qboolean isUnderwater );
+void R_AddLightningBoltSurfaces( trRefEntity_t *e );
+
+void R_AddPolygonSurfaces( void );
+
+void R_DecomposeSort( unsigned sort, int *entityNum, shader_t **shader,
+ int *fogNum, int *dlightMap );
+
+void R_AddDrawSurf( surfaceType_t *surface, shader_t *shader, int fogIndex, int dlightMap );
+
+
+#define CULL_IN 0 // completely unclipped
+#define CULL_CLIP 1 // clipped by one or more planes
+#define CULL_OUT 2 // completely outside the clipping planes
+void R_LocalNormalToWorld (vec3_t local, vec3_t world);
+void R_LocalPointToWorld (vec3_t local, vec3_t world);
+int R_CullLocalBox (vec3_t bounds[2]);
+int R_CullPointAndRadius( vec3_t origin, float radius );
+int R_CullLocalPointAndRadius( vec3_t origin, float radius );
+
+void R_RotateForEntity( const trRefEntity_t *ent, const viewParms_t *viewParms, orientationr_t *or );
+
+/*
+** GL wrapper/helper functions
+*/
+void GL_Bind( image_t *image );
+void GL_SetDefaultState (void);
+void GL_SelectTexture( int unit );
+void GL_TextureMode( const char *string );
+void GL_CheckErrors( void );
+void GL_State( unsigned long stateVector );
+void GL_TexEnv( int env );
+void GL_Cull( int cullType );
+
+#define GLS_SRCBLEND_ZERO 0x00000001
+#define GLS_SRCBLEND_ONE 0x00000002
+#define GLS_SRCBLEND_DST_COLOR 0x00000003
+#define GLS_SRCBLEND_ONE_MINUS_DST_COLOR 0x00000004
+#define GLS_SRCBLEND_SRC_ALPHA 0x00000005
+#define GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA 0x00000006
+#define GLS_SRCBLEND_DST_ALPHA 0x00000007
+#define GLS_SRCBLEND_ONE_MINUS_DST_ALPHA 0x00000008
+#define GLS_SRCBLEND_ALPHA_SATURATE 0x00000009
+#define GLS_SRCBLEND_BITS 0x0000000f
+
+#define GLS_DSTBLEND_ZERO 0x00000010
+#define GLS_DSTBLEND_ONE 0x00000020
+#define GLS_DSTBLEND_SRC_COLOR 0x00000030
+#define GLS_DSTBLEND_ONE_MINUS_SRC_COLOR 0x00000040
+#define GLS_DSTBLEND_SRC_ALPHA 0x00000050
+#define GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA 0x00000060
+#define GLS_DSTBLEND_DST_ALPHA 0x00000070
+#define GLS_DSTBLEND_ONE_MINUS_DST_ALPHA 0x00000080
+#define GLS_DSTBLEND_BITS 0x000000f0
+
+#define GLS_DEPTHMASK_TRUE 0x00000100
+
+#define GLS_POLYMODE_LINE 0x00001000
+
+#define GLS_DEPTHTEST_DISABLE 0x00010000
+#define GLS_DEPTHFUNC_EQUAL 0x00020000
+
+#define GLS_ATEST_GT_0 0x10000000
+#define GLS_ATEST_LT_80 0x20000000
+#define GLS_ATEST_GE_80 0x40000000
+#define GLS_ATEST_BITS 0x70000000
+
+#define GLS_DEFAULT GLS_DEPTHMASK_TRUE
+
+void RE_StretchRaw (int x, int y, int w, int h, int cols, int rows, const byte *data, int client, qboolean dirty);
+void RE_UploadCinematic (int w, int h, int cols, int rows, const byte *data, int client, qboolean dirty);
+
+void RE_BeginFrame( stereoFrame_t stereoFrame );
+void RE_BeginRegistration( glconfig_t *glconfig );
+void RE_LoadWorldMap( const char *mapname );
+void RE_SetWorldVisData( const byte *vis );
+qhandle_t RE_RegisterModel( const char *name );
+qhandle_t RE_RegisterSkin( const char *name );
+void RE_Shutdown( qboolean destroyWindow );
+
+qboolean R_GetEntityToken( char *buffer, int size );
+
+model_t *R_AllocModel( void );
+
+void R_Init( void );
+image_t *R_FindImageFile( const char *name, qboolean mipmap, qboolean allowPicmip, int glWrapClampMode );
+
+image_t *R_CreateImage( const char *name, const byte *pic, int width, int height, qboolean mipmap
+ , qboolean allowPicmip, int wrapClampMode );
+qboolean R_GetModeInfo( int *width, int *height, float *windowAspect, int mode );
+
+void R_SetColorMappings( void );
+void R_GammaCorrect( byte *buffer, int bufSize );
+
+void R_ImageList_f( void );
+void R_SkinList_f( void );
+// https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=516
+const void *RB_TakeScreenshotCmd( const void *data );
+void R_ScreenShot_f( void );
+
+void R_InitFogTable( void );
+float R_FogFactor( float s, float t );
+void R_InitImages( void );
+void R_DeleteTextures( void );
+int R_SumOfUsedImages( void );
+void R_InitSkins( void );
+skin_t *R_GetSkinByHandle( qhandle_t hSkin );
+
+int R_ComputeLOD( trRefEntity_t *ent );
+
+const void *RB_TakeVideoFrameCmd( const void *data );
+
+//
+// tr_shader.c
+//
+qhandle_t RE_RegisterShaderLightMap( const char *name, int lightmapIndex );
+qhandle_t RE_RegisterShader( const char *name );
+qhandle_t RE_RegisterShaderNoMip( const char *name );
+qhandle_t RE_RegisterShaderFromImage(const char *name, int lightmapIndex, image_t *image, qboolean mipRawImage);
+
+shader_t *R_FindShader( const char *name, int lightmapIndex, qboolean mipRawImage );
+shader_t *R_GetShaderByHandle( qhandle_t hShader );
+shader_t *R_GetShaderByState( int index, long *cycleTime );
+shader_t *R_FindShaderByName( const char *name );
+void R_InitShaders( void );
+void R_ShaderList_f( void );
+void R_RemapShader(const char *oldShader, const char *newShader, const char *timeOffset);
+
+/*
+====================================================================
+
+IMPLEMENTATION SPECIFIC FUNCTIONS
+
+====================================================================
+*/
+
+void GLimp_Init( void );
+void GLimp_Shutdown( void );
+void GLimp_EndFrame( void );
+
+qboolean GLimp_SpawnRenderThread( void (*function)( void ) );
+void *GLimp_RendererSleep( void );
+void GLimp_FrontEndSleep( void );
+void GLimp_WakeRenderer( void *data );
+
+void GLimp_LogComment( char *comment );
+
+// NOTE TTimo linux works with float gamma value, not the gamma table
+// the params won't be used, getting the r_gamma cvar directly
+void GLimp_SetGamma( unsigned char red[256],
+ unsigned char green[256],
+ unsigned char blue[256] );
+
+void GL_ResolveHardwareType( void );
+
+/*
+====================================================================
+
+TESSELATOR/SHADER DECLARATIONS
+
+====================================================================
+*/
+typedef byte color4ub_t[4];
+
+typedef struct stageVars
+{
+ color4ub_t colors[SHADER_MAX_VERTEXES];
+ vec2_t texcoords[NUM_TEXTURE_BUNDLES][SHADER_MAX_VERTEXES];
+} stageVars_t;
+
+
+typedef struct shaderCommands_s
+{
+ glIndex_t indexes[SHADER_MAX_INDEXES] ALIGN(16);
+ vec4_t xyz[SHADER_MAX_VERTEXES] ALIGN(16);
+ vec4_t normal[SHADER_MAX_VERTEXES] ALIGN(16);
+ vec2_t texCoords[SHADER_MAX_VERTEXES][2] ALIGN(16);
+ color4ub_t vertexColors[SHADER_MAX_VERTEXES] ALIGN(16);
+ int vertexDlightBits[SHADER_MAX_VERTEXES] ALIGN(16);
+
+ stageVars_t svars ALIGN(16);
+
+ color4ub_t constantColor255[SHADER_MAX_VERTEXES] ALIGN(16);
+
+ shader_t *shader;
+ float shaderTime;
+ int fogNum;
+
+ int dlightBits; // or together of all vertexDlightBits
+
+ int numIndexes;
+ int numVertexes;
+
+ // info extracted from current shader
+ int numPasses;
+ void (*currentStageIteratorFunc)( void );
+ shaderStage_t **xstages;
+} shaderCommands_t;
+
+extern shaderCommands_t tess;
+
+void RB_BeginSurface(shader_t *shader, int fogNum );
+void RB_EndSurface(void);
+void RB_CheckOverflow( int verts, int indexes );
+#define RB_CHECKOVERFLOW(v,i) if (tess.numVertexes + (v) >= SHADER_MAX_VERTEXES || tess.numIndexes + (i) >= SHADER_MAX_INDEXES ) {RB_CheckOverflow(v,i);}
+
+void RB_StageIteratorGeneric( void );
+void RB_StageIteratorSky( void );
+void RB_StageIteratorVertexLitTexture( void );
+void RB_StageIteratorLightmappedMultitexture( void );
+
+void RB_AddQuadStamp( vec3_t origin, vec3_t left, vec3_t up, byte *color );
+void RB_AddQuadStampExt( vec3_t origin, vec3_t left, vec3_t up, byte *color, float s1, float t1, float s2, float t2 );
+
+void RB_ShowImages( void );
+
+
+/*
+============================================================
+
+WORLD MAP
+
+============================================================
+*/
+
+void R_AddBrushModelSurfaces( trRefEntity_t *e );
+void R_AddWorldSurfaces( void );
+qboolean R_inPVS( const vec3_t p1, const vec3_t p2 );
+
+
+/*
+============================================================
+
+FLARES
+
+============================================================
+*/
+
+void R_ClearFlares( void );
+
+void RB_AddFlare( void *surface, int fogNum, vec3_t point, vec3_t color, vec3_t normal );
+void RB_AddDlightFlares( void );
+void RB_RenderFlares (void);
+
+/*
+============================================================
+
+LIGHTS
+
+============================================================
+*/
+
+void R_DlightBmodel( bmodel_t *bmodel );
+void R_SetupEntityLighting( const trRefdef_t *refdef, trRefEntity_t *ent );
+void R_TransformDlights( int count, dlight_t *dl, orientationr_t *or );
+int R_LightForPoint( vec3_t point, vec3_t ambientLight, vec3_t directedLight, vec3_t lightDir );
+
+
+/*
+============================================================
+
+SHADOWS
+
+============================================================
+*/
+
+void RB_ShadowTessEnd( void );
+void RB_ShadowFinish( void );
+void RB_ProjectionShadowDeform( void );
+
+/*
+============================================================
+
+SKIES
+
+============================================================
+*/
+
+void R_BuildCloudData( shaderCommands_t *shader );
+void R_InitSkyTexCoords( float cloudLayerHeight );
+void R_DrawSkyBox( shaderCommands_t *shader );
+void RB_DrawSun( void );
+void RB_ClipSkyPolygons( shaderCommands_t *shader );
+
+/*
+============================================================
+
+CURVE TESSELATION
+
+============================================================
+*/
+
+#define PATCH_STITCHING
+
+srfGridMesh_t *R_SubdividePatchToGrid( int width, int height,
+ drawVert_t points[MAX_PATCH_SIZE*MAX_PATCH_SIZE] );
+srfGridMesh_t *R_GridInsertColumn( srfGridMesh_t *grid, int column, int row, vec3_t point, float loderror );
+srfGridMesh_t *R_GridInsertRow( srfGridMesh_t *grid, int row, int column, vec3_t point, float loderror );
+void R_FreeSurfaceGridMesh( srfGridMesh_t *grid );
+
+/*
+============================================================
+
+MARKERS, POLYGON PROJECTION ON WORLD POLYGONS
+
+============================================================
+*/
+
+int R_MarkFragments( int numPoints, const vec3_t *points, const vec3_t projection,
+ int maxPoints, vec3_t pointBuffer, int maxFragments, markFragment_t *fragmentBuffer );
+
+
+/*
+============================================================
+
+SCENE GENERATION
+
+============================================================
+*/
+
+void R_ToggleSmpFrame( void );
+
+void RE_ClearScene( void );
+void RE_AddRefEntityToScene( const refEntity_t *ent );
+void RE_AddPolyToScene( qhandle_t hShader , int numVerts, const polyVert_t *verts, int num );
+void RE_AddLightToScene( const vec3_t org, float intensity, float r, float g, float b );
+void RE_AddAdditiveLightToScene( const vec3_t org, float intensity, float r, float g, float b );
+void RE_RenderScene( const refdef_t *fd );
+
+#ifdef RAVENMD4
+/*
+=============================================================
+
+UNCOMPRESSING BONES
+
+=============================================================
+*/
+
+#define MC_BITS_X (16)
+#define MC_BITS_Y (16)
+#define MC_BITS_Z (16)
+#define MC_BITS_VECT (16)
+
+#define MC_SCALE_X (1.0f/64)
+#define MC_SCALE_Y (1.0f/64)
+#define MC_SCALE_Z (1.0f/64)
+
+void MC_UnCompress(float mat[3][4],const unsigned char * comp);
+#endif
+
+/*
+=============================================================
+
+ANIMATED MODELS
+
+=============================================================
+*/
+
+// void R_MakeAnimModel( model_t *model ); haven't seen this one really, so not needed I guess.
+void R_AddAnimSurfaces( trRefEntity_t *ent );
+void RB_SurfaceAnim( md4Surface_t *surfType );
+#ifdef RAVENMD4
+void R_MDRAddAnimSurfaces( trRefEntity_t *ent );
+void RB_MDRSurfaceAnim( md4Surface_t *surface );
+#endif
+
+/*
+=============================================================
+=============================================================
+*/
+void R_TransformModelToClip( const vec3_t src, const float *modelMatrix, const float *projectionMatrix,
+ vec4_t eye, vec4_t dst );
+void R_TransformClipToWindow( const vec4_t clip, const viewParms_t *view, vec4_t normalized, vec4_t window );
+
+void RB_DeformTessGeometry( void );
+
+void RB_CalcEnvironmentTexCoords( float *dstTexCoords );
+void RB_CalcFogTexCoords( float *dstTexCoords );
+void RB_CalcScrollTexCoords( const float scroll[2], float *dstTexCoords );
+void RB_CalcRotateTexCoords( float rotSpeed, float *dstTexCoords );
+void RB_CalcScaleTexCoords( const float scale[2], float *dstTexCoords );
+void RB_CalcTurbulentTexCoords( const waveForm_t *wf, float *dstTexCoords );
+void RB_CalcTransformTexCoords( const texModInfo_t *tmi, float *dstTexCoords );
+void RB_CalcModulateColorsByFog( unsigned char *dstColors );
+void RB_CalcModulateAlphasByFog( unsigned char *dstColors );
+void RB_CalcModulateRGBAsByFog( unsigned char *dstColors );
+void RB_CalcWaveAlpha( const waveForm_t *wf, unsigned char *dstColors );
+void RB_CalcWaveColor( const waveForm_t *wf, unsigned char *dstColors );
+void RB_CalcAlphaFromEntity( unsigned char *dstColors );
+void RB_CalcAlphaFromOneMinusEntity( unsigned char *dstColors );
+void RB_CalcStretchTexCoords( const waveForm_t *wf, float *texCoords );
+void RB_CalcColorFromEntity( unsigned char *dstColors );
+void RB_CalcColorFromOneMinusEntity( unsigned char *dstColors );
+void RB_CalcSpecularAlpha( unsigned char *alphas );
+void RB_CalcDiffuseColor( unsigned char *colors );
+
+/*
+=============================================================
+
+RENDERER BACK END FUNCTIONS
+
+=============================================================
+*/
+
+void RB_RenderThread( void );
+void RB_ExecuteRenderCommands( const void *data );
+
+/*
+=============================================================
+
+RENDERER BACK END COMMAND QUEUE
+
+=============================================================
+*/
+
+#define MAX_RENDER_COMMANDS 0x40000
+
+typedef struct {
+ byte cmds[MAX_RENDER_COMMANDS];
+ int used;
+} renderCommandList_t;
+
+typedef struct {
+ int commandId;
+ float color[4];
+} setColorCommand_t;
+
+typedef struct {
+ int commandId;
+ int buffer;
+} drawBufferCommand_t;
+
+typedef struct {
+ int commandId;
+ image_t *image;
+ int width;
+ int height;
+ void *data;
+} subImageCommand_t;
+
+typedef struct {
+ int commandId;
+} swapBuffersCommand_t;
+
+typedef struct {
+ int commandId;
+ int buffer;
+} endFrameCommand_t;
+
+typedef struct {
+ int commandId;
+ shader_t *shader;
+ float x, y;
+ float w, h;
+ float s1, t1;
+ float s2, t2;
+} stretchPicCommand_t;
+
+typedef struct {
+ int commandId;
+ trRefdef_t refdef;
+ viewParms_t viewParms;
+ drawSurf_t *drawSurfs;
+ int numDrawSurfs;
+} drawSurfsCommand_t;
+
+typedef struct {
+ int commandId;
+ int x;
+ int y;
+ int width;
+ int height;
+ char *fileName;
+ qboolean jpeg;
+} screenshotCommand_t;
+
+typedef struct {
+ int commandId;
+ int width;
+ int height;
+ byte *captureBuffer;
+ byte *encodeBuffer;
+ qboolean motionJpeg;
+} videoFrameCommand_t;
+
+typedef enum {
+ RC_END_OF_LIST,
+ RC_SET_COLOR,
+ RC_STRETCH_PIC,
+ RC_DRAW_SURFS,
+ RC_DRAW_BUFFER,
+ RC_SWAP_BUFFERS,
+ RC_SCREENSHOT,
+ RC_VIDEOFRAME
+} renderCommand_t;
+
+
+// these are sort of arbitrary limits.
+// the limits apply to the sum of all scenes in a frame --
+// the main view, all the 3D icons, etc
+#define MAX_POLYS 600
+#define MAX_POLYVERTS 3000
+
+// all of the information needed by the back end must be
+// contained in a backEndData_t. This entire structure is
+// duplicated so the front and back end can run in parallel
+// on an SMP machine
+typedef struct {
+ drawSurf_t drawSurfs[MAX_DRAWSURFS];
+ dlight_t dlights[MAX_DLIGHTS];
+ trRefEntity_t entities[MAX_ENTITIES];
+ srfPoly_t *polys;//[MAX_POLYS];
+ polyVert_t *polyVerts;//[MAX_POLYVERTS];
+ renderCommandList_t commands;
+} backEndData_t;
+
+extern int max_polys;
+extern int max_polyverts;
+
+extern backEndData_t *backEndData[SMP_FRAMES]; // the second one may not be allocated
+
+extern volatile renderCommandList_t *renderCommandList;
+
+extern volatile qboolean renderThreadActive;
+
+
+void *R_GetCommandBuffer( int bytes );
+void RB_ExecuteRenderCommands( const void *data );
+
+void R_InitCommandBuffers( void );
+void R_ShutdownCommandBuffers( void );
+
+void R_SyncRenderThread( void );
+
+void R_AddDrawSurfCmd( drawSurf_t *drawSurfs, int numDrawSurfs );
+
+void RE_SetColor( const float *rgba );
+void RE_StretchPic ( float x, float y, float w, float h,
+ float s1, float t1, float s2, float t2, qhandle_t hShader );
+void RE_BeginFrame( stereoFrame_t stereoFrame );
+void RE_EndFrame( int *frontEndMsec, int *backEndMsec );
+void SaveJPG(char * filename, int quality, int image_width, int image_height, unsigned char *image_buffer);
+int SaveJPGToBuffer( byte *buffer, int quality,
+ int image_width, int image_height,
+ byte *image_buffer );
+void RE_TakeVideoFrame( int width, int height,
+ byte *captureBuffer, byte *encodeBuffer, qboolean motionJpeg );
+
+// font stuff
+void R_InitFreeType( void );
+void R_DoneFreeType( void );
+void RE_RegisterFont(const char *fontName, int pointSize, fontInfo_t *font);
+
+
+#endif //TR_LOCAL_H
generated by cgit (git 2.34.1) at 2024-12-25 20:34:11 +0000