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fteqw/engine/gl/shader.h
Spoike 38a9770253 add support for symlinks in zips. 
try to fix normalmaps on q3bsps. could do with verification, but at least I'm not the only one with a bug if its still buggy.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4578 fc73d0e0-1445-4013-8a0c-d673dee63da5
2014-01-13 02:42:25 +00:00

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/*
Copyright spike. GNU GPL V2. etc.
Much of this file and the parser derives originally from qfusion by vic.
Quake1 rendering works by:
Draw everything in depth order and stall lots from switching textures.
draw transparent water surfaces last.
Quake3 rendering works by:
generate a batch for every model+shader in the world.
sort batches by shader sort key, entity, shader.
draw surfaces.
Doom3 rendering works by:
generate a batch for every model+shader in the world.
sort batches by shader sort key, entity, shader.
depth is drawn (yay alpha masked surfaces)
for each light+batch
draw each bump/diffuse/specular stage. combine to one pass if that ordering is not maintained. switch diffuse/specular if needed
ambient stages from each batch are added over the top.
FTE rtlight rendering works by:
generate a batch for every model+shader in the world.
sort batches by shader sort key, entity, shader.
draw surfaces. if rtworld_lightmaps is 0 and there's no additive stuff, draw as black, otherwise just scale lightmap passes.
lights are then added over the top based upon the diffusemap, bumpmap and specularmap, and without any pass-specific info (no tcmods).
*/
#ifndef SHADER_H
#define SHADER_H
typedef void (shader_gen_t)(char *name, shader_t*, const void *args);
#define SHADER_TMU_MAX 16
#define SHADER_PASS_MAX 8
#define SHADER_MAX_TC_MODS 8
#define SHADER_DEFORM_MAX 8
#define SHADER_MAX_ANIMFRAMES 16
#define SHADER_PROGPARMS_MAX 16
typedef enum {
SHADER_BSP,
SHADER_BSP_VERTEX,
SHADER_BSP_FLARE,
SHADER_MD3,
SHADER_2D
} shadertype_t;
typedef enum {
MF_NONE = 1<<0,
MF_NORMALS = 1<<1,
MF_TRNORMALS = 1<<2,
MF_COLORS = 1<<3,
MF_STCOORDS = 1<<4,
MF_LMCOORDS = 1<<5,
MF_NOCULL = 1<<6,
MF_NONBATCHED = 1<<7
} meshfeatures_t;
//colour manipulation
typedef struct
{
enum {
SHADER_FUNC_SIN,
SHADER_FUNC_TRIANGLE,
SHADER_FUNC_SQUARE,
SHADER_FUNC_SAWTOOTH,
SHADER_FUNC_INVERSESAWTOOTH,
SHADER_FUNC_NOISE,
SHADER_FUNC_CONSTANT
} type; // SHADER_FUNC enum
float args[4]; // offset, amplitude, phase_offset, rate
} shaderfunc_t;
//tecture coordinate manipulation
typedef struct
{
enum {
SHADER_TCMOD_NONE, //bug
SHADER_TCMOD_SCALE, //some sorta tabled deformation
SHADER_TCMOD_SCROLL, //boring moving texcoords with time
SHADER_TCMOD_STRETCH, //constant factor
SHADER_TCMOD_ROTATE,
SHADER_TCMOD_TRANSFORM,
SHADER_TCMOD_TURB
} type;
float args[6];
} tcmod_t;
//vertex positioning manipulation.
typedef struct
{
enum {
DEFORMV_NONE, //bug
DEFORMV_MOVE,
DEFORMV_WAVE,
DEFORMV_NORMAL,
DEFORMV_BULGE,
DEFORMV_AUTOSPRITE,
DEFORMV_AUTOSPRITE2,
DEFORMV_PROJECTION_SHADOW
} type;
float args[4];
shaderfunc_t func;
} deformv_t;
enum
{
/*source and dest factors match each other for easier parsing
but they're not meant to ever be set on the shader itself
NONE is also invalid, and is used to signify disabled, it should never be set on only one
*/
SBITS_SRCBLEND_NONE = 0x00000000,
SBITS_SRCBLEND_ZERO = 0x00000001,
SBITS_SRCBLEND_ONE = 0x00000002,
SBITS_SRCBLEND_DST_COLOR = 0x00000003,
SBITS_SRCBLEND_ONE_MINUS_DST_COLOR = 0x00000004,
SBITS_SRCBLEND_SRC_ALPHA = 0x00000005,
SBITS_SRCBLEND_ONE_MINUS_SRC_ALPHA = 0x00000006,
SBITS_SRCBLEND_DST_ALPHA = 0x00000007,
SBITS_SRCBLEND_ONE_MINUS_DST_ALPHA = 0x00000008,
SBITS_SRCBLEND_SRC_COLOR_INVALID = 0x00000009,
SBITS_SRCBLEND_ONE_MINUS_SRC_COLOR_INVALID = 0x0000000a,
SBITS_SRCBLEND_ALPHA_SATURATE = 0x0000000b,
#define SBITS_SRCBLEND_BITS 0x0000000f
/*must match src factors, just shifted 4*/
SBITS_DSTBLEND_NONE = 0x00000000,
SBITS_DSTBLEND_ZERO = 0x00000010,
SBITS_DSTBLEND_ONE = 0x00000020,
SBITS_DSTBLEND_DST_COLOR_INVALID = 0x00000030,
SBITS_DSTBLEND_ONE_MINUS_DST_COLOR_INVALID = 0x00000040,
SBITS_DSTBLEND_SRC_ALPHA = 0x00000050,
SBITS_DSTBLEND_ONE_MINUS_SRC_ALPHA = 0x00000060,
SBITS_DSTBLEND_DST_ALPHA = 0x00000070,
SBITS_DSTBLEND_ONE_MINUS_DST_ALPHA = 0x00000080,
SBITS_DSTBLEND_SRC_COLOR = 0x00000090,
SBITS_DSTBLEND_ONE_MINUS_SRC_COLOR = 0x000000a0,
SBITS_DSTBLEND_ALPHA_SATURATE_INVALID = 0x000000b0,
#define SBITS_DSTBLEND_BITS 0x000000f0
#define SBITS_BLEND_BITS (SBITS_SRCBLEND_BITS|SBITS_DSTBLEND_BITS)
SBITS_MASK_RED = 0x00000100,
SBITS_MASK_GREEN = 0x00000200,
SBITS_MASK_BLUE = 0x00000400,
SBITS_MASK_ALPHA = 0x00000800,
#define SBITS_MASK_BITS 0x00000f00
SBITS_ATEST_NONE = 0x00000000,
SBITS_ATEST_GT0 = 0x00001000,
SBITS_ATEST_LT128 = 0x00002000,
SBITS_ATEST_GE128 = 0x00003000,
#define SBITS_ATEST_BITS 0x0000f000
SBITS_MISC_DEPTHWRITE = 0x00010000,
SBITS_MISC_NODEPTHTEST = 0x00020000,
SBITS_MISC_DEPTHEQUALONLY = 0x00040000,
SBITS_MISC_DEPTHCLOSERONLY = 0x00080000,
#define SBITS_MISC_BITS 0x000f0000
SBITS_TRUFORM = 0x00100000,
};
typedef struct shaderpass_s {
int numMergedPasses;
#ifndef NOMEDIA
struct cin_s *cin;
#endif
unsigned int shaderbits;
enum {
PBM_MODULATE,
PBM_OVERBRIGHT,
PBM_DECAL,
PBM_ADD,
PBM_DOTPRODUCT,
PBM_REPLACE,
PBM_REPLACELIGHT,
PBM_MODULATE_PREV_COLOUR
} blendmode;
enum {
RGB_GEN_WAVE,
RGB_GEN_ENTITY,
RGB_GEN_ONE_MINUS_ENTITY,
RGB_GEN_VERTEX_LIGHTING,
RGB_GEN_VERTEX_EXACT,
RGB_GEN_ONE_MINUS_VERTEX,
RGB_GEN_IDENTITY_LIGHTING,
RGB_GEN_IDENTITY_OVERBRIGHT,
RGB_GEN_IDENTITY,
RGB_GEN_CONST,
RGB_GEN_UNKNOWN,
RGB_GEN_LIGHTING_DIFFUSE,
RGB_GEN_TOPCOLOR,
RGB_GEN_BOTTOMCOLOR
} rgbgen;
shaderfunc_t rgbgen_func;
enum {
ALPHA_GEN_ENTITY,
ALPHA_GEN_WAVE,
ALPHA_GEN_PORTAL,
ALPHA_GEN_SPECULAR,
ALPHA_GEN_IDENTITY,
ALPHA_GEN_VERTEX,
ALPHA_GEN_CONST
} alphagen;
shaderfunc_t alphagen_func;
enum {
TC_GEN_BASE, //basic specified texture coords
TC_GEN_LIGHTMAP, //use loaded lightmap coords
TC_GEN_ENVIRONMENT,
TC_GEN_DOTPRODUCT,
TC_GEN_VECTOR,
//these are really for use only in glsl stuff or perhaps cubemaps, as they generate 3d coords.
TC_GEN_NORMAL,
TC_GEN_SVECTOR,
TC_GEN_TVECTOR,
TC_GEN_SKYBOX,
TC_GEN_WOBBLESKY,
TC_GEN_REFLECT,
} tcgen;
int numtcmods;
tcmod_t tcmods[SHADER_MAX_TC_MODS];
int anim_numframes;
texid_t anim_frames[SHADER_MAX_ANIMFRAMES];
float anim_fps;
// unsigned int texturetype;
enum {
T_GEN_SINGLEMAP, //single texture specified in the shader
T_GEN_ANIMMAP, //animating sequence of textures specified in the shader
T_GEN_LIGHTMAP, //world light samples
T_GEN_DELUXMAP, //world light directions
T_GEN_SHADOWMAP, //light's depth values.
T_GEN_LIGHTCUBEMAP, //light's projected cubemap
T_GEN_DIFFUSE, //texture's default diffuse texture
T_GEN_NORMALMAP, //texture's default normalmap
T_GEN_SPECULAR, //texture's default specular texture
T_GEN_UPPEROVERLAY, //texture's default personal colour
T_GEN_LOWEROVERLAY, //texture's default team colour
T_GEN_FULLBRIGHT, //texture's default fullbright overlay
T_GEN_CURRENTRENDER,//copy the current screen to a texture, and draw that
T_GEN_SOURCECOLOUR, //used for render-to-texture targets
T_GEN_SOURCEDEPTH, //used for render-to-texture targets
T_GEN_REFLECTION, //reflection image (mirror-as-fbo)
T_GEN_REFRACTION, //refraction image (portal-as-fbo)
T_GEN_REFRACTIONDEPTH, //refraction image (portal-as-fbo)
T_GEN_RIPPLEMAP, //ripplemap image (water surface distortions-as-fbo)
T_GEN_SOURCECUBE, //used for render-to-texture targets
T_GEN_VIDEOMAP, //use the media playback as an image source, updating each frame for which it is visible
T_GEN_CUBEMAP, //use a cubemap instead, otherwise like T_GEN_SINGLEMAP
T_GEN_3DMAP, //use a 3d texture instead, otherwise T_GEN_SINGLEMAP.
} texgen;
enum {
ST_DIFFUSEMAP,
ST_AMBIENT,
ST_BUMPMAP,
ST_SPECULARMAP
} stagetype;
enum {
SHADER_PASS_CLAMP = 1<<0, //needed for d3d's sampler states, infects image flags
SHADER_PASS_NEAREST = 1<<1, //needed for d3d's sampler states, infects image flags
SHADER_PASS_DEPTHCMP = 1<<2, //needed for d3d's sampler states
SHADER_PASS_NOMIPMAP = 1<<3, //infects image flags
SHADER_PASS_NOCOLORARRAY = 1<< 4,
//FIXME: remove these
SHADER_PASS_VIDEOMAP = 1 << 5,
SHADER_PASS_DETAIL = 1 << 6,
SHADER_PASS_LIGHTMAP = 1 << 7,
SHADER_PASS_DELUXMAP = 1 << 8,
SHADER_PASS_ANIMMAP = 1 << 9
} flags;
#ifdef D3D11QUAKE
void *becache; //cache for blendstate objects.
#endif
} shaderpass_t;
typedef struct
{
texid_t farbox_textures[6];
texid_t nearbox_textures[6];
} skydome_t;
enum{
PERMUTATION_GENERIC = 0,
PERMUTATION_BUMPMAP = 1,
PERMUTATION_FULLBRIGHT = 2,
PERMUTATION_UPPERLOWER = 4,
PERMUTATION_DELUXE = 8,
PERMUTATION_SKELETAL = 16,
PERMUTATION_FOG = 32,
PERMUTATION_FRAMEBLEND = 64,
#if MAXRLIGHTMAPS > 1
PERMUTATION_LIGHTSTYLES = 128,
#endif
PERMUTATIONS = 256
};
enum shaderattribs_e
{
VATTR_VERTEX1,
VATTR_VERTEX2,
VATTR_COLOUR,
VATTR_TEXCOORD,
VATTR_LMCOORD,
VATTR_NORMALS,
VATTR_SNORMALS,
VATTR_TNORMALS,
VATTR_BONENUMS, /*skeletal only*/
VATTR_BONEWEIGHTS, /*skeletal only*/
#if MAXRLIGHTMAPS > 1
VATTR_LMCOORD2,
VATTR_LMCOORD3,
VATTR_LMCOORD4,
VATTR_COLOUR2,
VATTR_COLOUR3,
VATTR_COLOUR4,
#endif
VATTR_LEG_VERTEX, //note: traditionally this is actually index 0.
//however, implementations are allowed to directly alias, or remap,
//so we're never quite sure if 0 is enabled or not when using legacy functions.
//as a result, we use legacy verticies always and never custom attribute 0 if we have any fixed function support.
//we then depend upon gl_Vertex always being supported by the glsl compiler.
//this is likely needed anyway to ensure that ftransform works properly and in all cases for stencil shadows.
VATTR_LEG_COLOUR,
VATTR_LEG_ELEMENTS,
VATTR_LEG_TMU0,
VATTR_LEG_FIRST=VATTR_LEG_VERTEX
};
typedef struct {
enum shaderprogparmtype_e {
SP_BAD, //never set (hopefully)
/*entity properties*/
SP_E_VBLEND,
SP_E_LMSCALE, //lightmap scales
SP_E_VLSCALE, //vertex lighting style scales
SP_E_ORIGIN,
SP_E_COLOURS,
SP_E_COLOURSIDENT,
SP_E_GLOWMOD,
SP_E_TOPCOLOURS,
SP_E_BOTTOMCOLOURS,
SP_E_TIME,
SP_E_L_DIR, /*these light values are non-dynamic light as in classic quake*/
SP_E_L_MUL,
SP_E_L_AMBIENT,
SP_E_EYEPOS, /*viewer's eyepos, in model space*/
SP_V_EYEPOS, /*viewer's eyepos, in world space*/
SP_W_FOG,
SP_M_ENTBONES,
SP_M_VIEW,
SP_M_MODEL,
SP_M_MODELVIEW,
SP_M_PROJECTION,
SP_M_MODELVIEWPROJECTION,
SP_M_INVVIEWPROJECTION,
SP_M_INVMODELVIEWPROJECTION,
SP_RENDERTEXTURESCALE, /*multiplier for currentrender->texcoord*/
SP_LIGHTRADIUS, /*these light values are realtime lighting*/
SP_LIGHTCOLOUR,
SP_LIGHTCOLOURSCALE,
SP_LIGHTPOSITION,
SP_LIGHTSCREEN,
SP_LIGHTCUBEMATRIX,
SP_LIGHTSHADOWMAPPROJ,
SP_LIGHTSHADOWMAPSCALE,
//things that are set immediatly
SP_FIRSTIMMEDIATE, //never set
SP_CONSTI,
SP_CONSTF,
SP_CVARI,
SP_CVARF,
SP_CVAR3F,
SP_TEXTURE
} type;
union
{
int ival;
float fval;
void *pval;
};
} shaderprogparm_t;
union programhandle_u
{
int glsl;
#ifdef D3DQUAKE
struct
{
void *vert;
void *frag;
#ifdef D3D9QUAKE
void *ctabf;
void *ctabv;
#endif
#ifdef D3D11QUAKE
void *layout;
#endif
} hlsl;
#endif
};
typedef struct programshared_s
{
int refs;
qboolean nofixedcompat;
int numparams;
shaderprogparm_t parm[SHADER_PROGPARMS_MAX];
struct {
union programhandle_u handle;
unsigned int attrmask;
unsigned int parm[SHADER_PROGPARMS_MAX];
} permu[PERMUTATIONS];
} program_t;
typedef struct {
float factor;
float unit;
} polyoffset_t;
enum
{
LSHADER_STANDARD=0u, //stencil or shadowless
LSHADER_CUBE=1u<<0, //has a cubemap
LSHADER_SMAP=1u<<1, //filter based upon 6 directions of a shadowmap
LSHADER_SPOT=1u<<2, //filter based upon a single spotlight shadowmap
LSHADER_MODES=1u<<3
};
enum
{
//low numbers are used for various rtlight mode combinations
bemoverride_crepuscular = LSHADER_MODES, //either black (non-sky) or a special crepuscular_sky shader
bemoverride_depthonly, //depth masked. replace if you want alpha test.
bemoverride_depthdark, //itself or a pure-black shader. replace for alpha test.
bemoverride_prelight, //prelighting
bemoverride_fog, //post-render volumetric fog
bemoverride_max
};
struct shader_s
{
char name[MAX_QPATH];
enum {
SUF_NONE = 0,
SUF_LIGHTMAP = 1<<0, //$lightmap passes are valid. otherwise collapsed to an rgbgen
SUF_2D = 1<<1 //any loaded textures will obey 2d picmips rather than 3d picmips
} usageflags; //
int uses; //released when the uses drops to 0
int width; //when used as an image, this is the logical 'width' of the image
int height;
int numpasses;
texnums_t defaulttextures;
struct shader_s *next;
int id;
//end of shared fields.
shader_t *bemoverrides[bemoverride_max];
byte_vec4_t fog_color;
float fog_dist;
float portaldist;
int numdeforms;
deformv_t deforms[SHADER_DEFORM_MAX];
polyoffset_t polyoffset;
#define SHADER_CULL_FLIP (SHADER_CULL_FRONT|SHADER_CULL_BACK)
enum {
SHADER_SKY = 1 << 0,
SHADER_NOMIPMAPS = 1 << 1,
SHADER_NOPICMIP = 1 << 2,
SHADER_CULL_FRONT = 1 << 3,
SHADER_CULL_BACK = 1 << 4,
SHADER_DEFORMV_BULGE = 1 << 5,
SHADER_AUTOSPRITE = 1 << 6,
SHADER_FLARE = 1 << 7,
SHADER_NOIMAGE = 1 << 8,
SHADER_ENTITY_MERGABLE = 1 << 9,
SHADER_VIDEOMAP = 1 << 10,
SHADER_DEPTHWRITE = 1 << 11, //some pass already wrote depth. not used by the renderer.
SHADER_AGEN_PORTAL = 1 << 12,
SHADER_BLEND = 1 << 13, //blend or alphatest (not 100% opaque).
SHADER_NODRAW = 1 << 14, //parsed only to pee off developers when they forget it on no-pass shaders.
SHADER_NODLIGHT = 1 << 15, //from surfaceflags
SHADER_HASLIGHTMAP = 1 << 16,
SHADER_HASTOPBOTTOM = 1 << 17,
SHADER_STATICDATA = 1 << 18, //set if true: no deforms, no tcgen, rgbgen=identitylighting, alphagen=identity, tmu0=st + tmu1=lm(if available) for every pass, no norms
SHADER_HASREFLECT = 1 << 19, //says that we need to generate a reflection image first
SHADER_HASREFRACT = 1 << 20, //says that we need to generate a refraction image first
SHADER_HASREFRACTDEPTH = 1 << 21, //refraction generation needs to generate a depth texture too.
SHADER_HASNORMALMAP = 1 << 22, //says that we need to load a normalmap texture
SHADER_HASRIPPLEMAP = 1 << 23, //water surface disturbances for water splashes
SHADER_HASGLOSS = 1 << 24, //
SHADER_NOSHADOWS = 1 << 25, //don't cast shadows
} flags;
program_t *prog;
shaderpass_t passes[SHADER_PASS_MAX];
shadersort_t sort;
skydome_t *skydome;
shader_gen_t *generator;
char *genargs;
meshfeatures_t features;
bucket_t bucket;
};
extern unsigned int r_numshaders;
extern unsigned int r_maxshaders;
extern shader_t **r_shaders;
extern int be_maxpasses;
void R_UnloadShader(shader_t *shader);
shader_t *R_RegisterPic (char *name);
shader_t *R_RegisterShader (char *name, unsigned int usageflags, const char *shaderscript);
shader_t *R_RegisterShader_Lightmap (char *name);
shader_t *R_RegisterShader_Vertex (char *name);
shader_t *R_RegisterShader_Flare (char *name);
shader_t *R_RegisterSkin (char *shadername, char *modname);
shader_t *R_RegisterCustom (char *name, unsigned int usageflags, shader_gen_t *defaultgen, const void *args);
void R_BuildDefaultTexnums(texnums_t *tn, shader_t *shader);
cin_t *R_ShaderGetCinematic(shader_t *s);
cin_t *R_ShaderFindCinematic(char *name);
void Shader_DefaultSkinShell(char *shortname, shader_t *s, const void *args);
void Shader_DefaultBSPLM(char *shortname, shader_t *s, const void *args);
void Shader_DefaultBSPQ1(char *shortname, shader_t *s, const void *args);
void Shader_DefaultBSPQ2(char *shortname, shader_t *s, const void *args);
void Shader_DefaultWaterShader(char *shortname, shader_t *s, const void *args);
void Shader_DefaultSkybox(char *shortname, shader_t *s, const void *args);
void Shader_DefaultCinematic(char *shortname, shader_t *s, const void *args);
void Shader_DefaultScript(char *shortname, shader_t *s, const void *args);
void Shader_DoReload(void);
void Shader_Shutdown (void);
qboolean Shader_Init (void);
void Shader_NeedReload(qboolean rescanfs);
void Shader_WriteOutGenerics_f(void);
mfog_t *CM_FogForOrigin(vec3_t org);
#define BEF_FORCEDEPTHWRITE 1
#define BEF_FORCEDEPTHTEST 2
#define BEF_FORCEADDITIVE 4 //blend dest = GL_ONE
#define BEF_FORCETRANSPARENT 8 //texenv replace -> modulate
#define BEF_FORCENODEPTH 16 //disables any and all depth.
#define BEF_PUSHDEPTH 32 //additional polygon offset
#define BEF_NODLIGHT 64 //don't use a dlight pass
#define BEF_NOSHADOWS 128 //don't appear in shadows
#define BEF_FORCECOLOURMOD 256 //q3 shaders default to 'rgbgen identity', and ignore ent colours. this forces ent colours to be considered
#define BEF_LINES 512 //draw line pairs instead of triangles.
#ifdef GLQUAKE
void GLBE_Init(void);
void GLBE_Shutdown(void);
void GLBE_SelectMode(backendmode_t mode);
void GLBE_DrawMesh_List(shader_t *shader, int nummeshes, mesh_t **mesh, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void GLBE_DrawMesh_Single(shader_t *shader, mesh_t *meshchain, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void GLBE_SubmitBatch(batch_t *batch);
batch_t *GLBE_GetTempBatch(void);
void GLBE_GenBrushModelVBO(model_t *mod);
void GLBE_ClearVBO(vbo_t *vbo);
void GLBE_UploadAllLightmaps(void);
void GLBE_DrawWorld (qboolean drawworld, qbyte *vis);
qboolean GLBE_LightCullModel(vec3_t org, model_t *model);
void GLBE_SelectEntity(entity_t *ent);
qboolean GLBE_SelectDLight(dlight_t *dl, vec3_t colour, unsigned int lmode);
void GLBE_Scissor(srect_t *rect);
void GLBE_SubmitMeshes (qboolean drawworld, int start, int stop);
void GLBE_RenderToTexture(texid_t sourcecol, texid_t sourcedepth, texid_t destcol, texid_t destdepth, qboolean usedepth);
void GLBE_VBO_Begin(vbobctx_t *ctx, unsigned int maxsize);
void GLBE_VBO_Data(vbobctx_t *ctx, void *data, unsigned int size, vboarray_t *varray);
void GLBE_VBO_Finish(vbobctx_t *ctx, void *edata, unsigned int esize, vboarray_t *earray);
void GLBE_VBO_Destroy(vboarray_t *vearray);
#endif
#ifdef D3D9QUAKE
void D3D9BE_Init(void);
void D3D9BE_Shutdown(void);
void D3D9BE_SelectMode(backendmode_t mode);
void D3D9BE_DrawMesh_List(shader_t *shader, int nummeshes, mesh_t **mesh, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void D3D9BE_DrawMesh_Single(shader_t *shader, mesh_t *meshchain, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void D3D9BE_SubmitBatch(batch_t *batch);
batch_t *D3D9BE_GetTempBatch(void);
void D3D9BE_GenBrushModelVBO(model_t *mod);
void D3D9BE_ClearVBO(vbo_t *vbo);
void D3D9BE_UploadAllLightmaps(void);
void D3D9BE_DrawWorld (qboolean drawworld, qbyte *vis);
qboolean D3D9BE_LightCullModel(vec3_t org, model_t *model);
void D3D9BE_SelectEntity(entity_t *ent);
qboolean D3D9BE_SelectDLight(dlight_t *dl, vec3_t colour, unsigned int lmode);
void D3D9BE_VBO_Begin(vbobctx_t *ctx, unsigned int maxsize);
void D3D9BE_VBO_Data(vbobctx_t *ctx, void *data, unsigned int size, vboarray_t *varray);
void D3D9BE_VBO_Finish(vbobctx_t *ctx, void *edata, unsigned int esize, vboarray_t *earray);
void D3D9BE_VBO_Destroy(vboarray_t *vearray);
void D3D9BE_Scissor(srect_t *rect);
qboolean D3D9Shader_CreateProgram (program_t *prog, char *sname, int permu, char **precompilerconstants, char *vert, char *frag);
int D3D9Shader_FindUniform(union programhandle_u *h, int type, char *name);
void D3D9Shader_Init(void);
void D3D9BE_Reset(qboolean before);
#endif
#ifdef D3D11QUAKE
void D3D11BE_Init(void);
void D3D11BE_Shutdown(void);
void D3D11BE_SelectMode(backendmode_t mode);
void D3D11BE_DrawMesh_List(shader_t *shader, int nummeshes, mesh_t **mesh, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void D3D11BE_DrawMesh_Single(shader_t *shader, mesh_t *meshchain, vbo_t *vbo, texnums_t *texnums, unsigned int beflags);
void D3D11BE_SubmitBatch(batch_t *batch);
batch_t *D3D11BE_GetTempBatch(void);
void D3D11BE_GenBrushModelVBO(model_t *mod);
void D3D11BE_ClearVBO(vbo_t *vbo);
void D3D11BE_UploadAllLightmaps(void);
void D3D11BE_DrawWorld (qboolean drawworld, qbyte *vis);
qboolean D3D11BE_LightCullModel(vec3_t org, model_t *model);
void D3D11BE_SelectEntity(entity_t *ent);
qboolean D3D11BE_SelectDLight(dlight_t *dl, vec3_t colour, unsigned int lmode);
qboolean D3D11Shader_CreateProgram (program_t *prog, const char *name, int permu, char **precompilerconstants, char *vert, char *frag);
void D3D11Shader_DeleteProgram(program_t *prog);
int D3D11Shader_FindUniform(union programhandle_u *h, int type, char *name);
qboolean D3D11Shader_Init(unsigned int featurelevel);
void D3D11BE_Reset(qboolean before);
void D3D11BE_SetupViewCBuffer(void);
void D3D11_UploadLightmap(lightmapinfo_t *lm);
void D3D11BE_VBO_Begin(vbobctx_t *ctx, unsigned int maxsize);
void D3D11BE_VBO_Data(vbobctx_t *ctx, void *data, unsigned int size, vboarray_t *varray);
void D3D11BE_VBO_Finish(vbobctx_t *ctx, void *edata, unsigned int esize, vboarray_t *earray);
void D3D11BE_VBO_Destroy(vboarray_t *vearray);
void D3D11BE_Scissor(srect_t *rect);
#endif
//Builds a hardware shader from the software representation
void BE_GenerateProgram(shader_t *shader);
void Sh_RegisterCvars(void);
#ifdef RTLIGHTS
//
void GLBE_PushOffsetShadow(qboolean foobar);
//sets up gl for depth-only FIXME
int GLBE_SetupForShadowMap(texid_t shadowmaptex, int texwidth, int texheight, float shadowscale);
//Called from shadowmapping code into backend
void GLBE_BaseEntTextures(void);
void D3D9BE_BaseEntTextures(void);
void D3D11BE_BaseEntTextures(void);
//prebuilds shadow volumes
void Sh_PreGenerateLights(void);
//Draws lights, called from the backend
void Sh_DrawLights(qbyte *vis);
void Sh_CheckSettings(void);
void SH_FreeShadowMesh(struct shadowmesh_s *sm);
//frees all memory
void Sh_Shutdown(void);
//resize any textures to match new screen resize
void Sh_Reset(void);
qboolean Sh_StencilShadowsActive(void);
#else
#define Sh_StencilShadowsActive() false
#endif
struct shader_field_names_s
{
char *name;
enum shaderprogparmtype_e ptype;
};
extern struct shader_field_names_s shader_field_names[];
#endif
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