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raze-gles/source/build/include/polymost.h
Christoph Oelckers 2cbe211e7c - transitioned project to CMake and deleted most of the old build system. 
The EDuke32 and RedNukem frontends are working, Blood isn't yet.

Notes:

many of the CMake variables and its output still refer to zdoom. Before changing that I wanted to make sure to be able to commit something that works.
support code for Windows XP has been entirely removed. On Windows this will only target Vista and up.
the crc32.h header had to be renamed to deconflict from zlib.
several Windows API calls were changed to call the A-versions directly. Weirdly enough there were places that defined their parameters as T types but in a non-working way.
removed some remaining editor files and support for the native software rendering only Windows backend.
in a few simple cases, replaced 'char' with 'uint8_t'. The code as-is depends on chars being unsigned which is non-portable. This needs to be carefully reviewed.
2019-09-22 23:15:46 +02:00

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#ifndef polymost_h_
# define polymost_h_
#ifdef USE_OPENGL
#include "baselayer.h" // glinfo
#include "glad/glad.h"
#include "hightile.h"
#include "mdsprite.h"
void Polymost_CacheHitList(uint8_t* hash);
class FHardwareTexture;
typedef struct { uint8_t r, g, b, a; } coltype;
typedef struct { float r, g, b, a; } coltypef;
extern bool playing_rr;
extern int32_t rendmode;
extern float gtang;
extern float glox1, gloy1;
extern double gxyaspect;
extern float grhalfxdown10x;
extern float gcosang, gsinang, gcosang2, gsinang2;
extern float gchang, gshang, gctang, gstang, gvisibility;
extern float gvrcorrection;
struct glfiltermodes {
const char *name;
int32_t min,mag;
};
#define NUMGLFILTERMODES 6
extern struct glfiltermodes glfiltermodes[NUMGLFILTERMODES];
extern void Polymost_prepare_loadboard(void);
void polymost_outputGLDebugMessage(uint8_t severity, const char* format, ...);
//void phex(char v, char *s);
void uploadtexture(FHardwareTexture *tex, int32_t doalloc, vec2_t siz, int32_t texfmt, coltype *pic, vec2_t tsiz, int32_t dameth);
void uploadbasepalette(int32_t basepalnum);
void uploadpalswap(int32_t palookupnum);
void polymost_drawsprite(int32_t snum);
void polymost_drawmaskwall(int32_t damaskwallcnt);
void polymost_dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum,
int8_t dashade, uint8_t dapalnum, int32_t dastat, uint8_t daalpha, uint8_t dablend, int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2, int32_t uniqid);
void polymost_fillpolygon(int32_t npoints);
void polymost_initosdfuncs(void);
void polymost_drawrooms(void);
void polymost_prepareMirror(int32_t dax, int32_t day, int32_t daz, fix16_t daang, fix16_t dahoriz, int16_t mirrorWall);
void polymost_completeMirror();
int32_t polymost_maskWallHasTranslucency(uwalltype const * const wall);
int32_t polymost_spriteHasTranslucency(uspritetype const * const tspr);
void polymost_resetVertexPointers(void);
void polymost_disableProgram(void);
void polymost_resetProgram(void);
void polymost_setTexturePosSize(vec4f_t const &texturePosSize);
void polymost_setHalfTexelSize(vec2f_t const &halfTexelSize);
char polymost_getClamp();
void polymost_setClamp(char clamp);
void polymost_setVisibility(float visibility);
void polymost_setFogEnabled(char fogEnabled);
void polymost_useColorOnly(char useColorOnly);
void polymost_usePaletteIndexing(char usePaletteIndexing);
void polymost_useDetailMapping(char useDetailMapping);
void polymost_useGlowMapping(char useGlowMapping);
void useShaderProgram(uint32_t shaderID);
float* multiplyMatrix4f(float m0[4*4], const float m1[4*4]);
void polymost_glinit(void);
void polymost_glreset(void);
void polymost_init(void);
enum {
INVALIDATE_ALL,
INVALIDATE_ART,
INVALIDATE_ALL_NON_INDEXED,
INVALIDATE_ART_NON_INDEXED
};
void gltexinvalidate(int32_t dapicnum, int32_t dapalnum, int32_t dameth);
void gltexinvalidatetype(int32_t type);
int32_t polymost_printext256(int32_t xpos, int32_t ypos, int16_t col, int16_t backcol, const char *name, char fontsize);
extern float curpolygonoffset;
extern float shadescale;
extern int32_t shadescale_unbounded;
extern uint8_t alphahackarray[MAXTILES];
extern int32_t r_usenewshading;
extern int32_t r_npotwallmode;
extern int32_t r_brightnesshack;
extern int32_t polymostcenterhoriz;
extern int16_t globalpicnum;
// Compare with polymer_eligible_for_artmap()
static FORCE_INLINE int32_t eligible_for_tileshades(int32_t const picnum, int32_t const pal)
{
return !usehightile || !hicfindsubst(picnum, pal, hictinting[pal].f & HICTINT_ALWAYSUSEART);
}
static inline float getshadefactor(int32_t const shade)
{
// 8-bit tiles, i.e. non-hightiles and non-models, don't get additional
// glColor() shading with r_usetileshades!
if (videoGetRenderMode() == REND_POLYMOST && !(globalflags & GLOBAL_NO_GL_TILESHADES) && eligible_for_tileshades(globalpicnum, globalpal))
return 1.f;
if (r_usenewshading == 4)
return max(min(1.f - (shade * shadescale / frealmaxshade), 1.f), 0.f);
float const shadebound = (float)((shadescale_unbounded || shade>=numshades) ? numshades : numshades-1);
float const scaled_shade = (float)shade*shadescale;
float const clamped_shade = min(max(scaled_shade, 0.f), shadebound);
return ((float)(numshades-clamped_shade))/(float)numshades;
}
#define POLYMOST_CHOOSE_FOG_PAL(fogpal, pal) \
((fogpal) ? (fogpal) : (pal))
static FORCE_INLINE int32_t get_floor_fogpal(usectorptr_t const sec)
{
return POLYMOST_CHOOSE_FOG_PAL(sec->fogpal, sec->floorpal);
}
static FORCE_INLINE int32_t get_ceiling_fogpal(usectorptr_t const sec)
{
return POLYMOST_CHOOSE_FOG_PAL(sec->fogpal, sec->ceilingpal);
}
static FORCE_INLINE int32_t fogshade(int32_t const shade, int32_t const pal)
{
polytintflags_t const tintflags = hictinting[pal].f;
return (globalflags & GLOBAL_NO_GL_FOGSHADE || tintflags & HICTINT_NOFOGSHADE) ? 0 : shade;
}
static FORCE_INLINE int check_nonpow2(int32_t const x)
{
return (x > 1 && (x&(x-1)));
}
// Are we using the mode that uploads non-power-of-two wall textures like they
// render in classic?
static FORCE_INLINE int polymost_is_npotmode(void)
{
// The glinfo.texnpot check is so we don't have to deal with that case in
// gloadtile_art().
return glinfo.texnpot &&
// r_npotwallmode is NYI for hightiles. We require r_hightile off
// because in calc_ypanning(), the repeat would be multiplied by a
// factor even if no modified texture were loaded.
!usehightile &&
#ifdef NEW_MAP_FORMAT
g_loadedMapVersion < 10 &&
#endif
r_npotwallmode;
}
static inline float polymost_invsqrt_approximation(float x)
{
#ifdef B_LITTLE_ENDIAN
float const haf = x * .5f;
union { float f; uint32_t i; } n = { x };
n.i = 0x5f375a86 - (n.i >> 1);
return n.f * (1.5f - haf * (n.f * n.f));
#else
// this is the comment
return 1.f / Bsqrtf(x);
#endif
}
// Flags of the <dameth> argument of various functions
enum {
DAMETH_NOMASK = 0,
DAMETH_MASK = 1,
DAMETH_TRANS1 = 2,
DAMETH_TRANS2 = 3,
DAMETH_MASKPROPS = 3,
DAMETH_CLAMPED = 4,
DAMETH_WALL = 32, // signals a texture for a wall (for r_npotwallmode)
// used internally by polymost_domost
DAMETH_BACKFACECULL = -1,
// used internally by uploadtexture
DAMETH_NODOWNSIZE = 4096,
DAMETH_HI = 8192,
DAMETH_NOFIX = 16384,
DAMETH_NOTEXCOMPRESS = 32768,
DAMETH_HASALPHA = 65536,
DAMETH_ONEBITALPHA = 131072,
DAMETH_ARTIMMUNITY = 262144,
DAMETH_HASFULLBRIGHT = 524288,
DAMETH_NPOTWALL = 1048576,
DAMETH_UPLOADTEXTURE_MASK =
DAMETH_HI |
DAMETH_NODOWNSIZE |
DAMETH_NOFIX |
DAMETH_NOTEXCOMPRESS |
DAMETH_HASALPHA |
DAMETH_ONEBITALPHA |
DAMETH_ARTIMMUNITY |
DAMETH_HASFULLBRIGHT |
DAMETH_NPOTWALL,
};
#define DAMETH_NARROW_MASKPROPS(dameth) (((dameth)&(~DAMETH_TRANS1))|(((dameth)&DAMETH_TRANS1)>>1))
EDUKE32_STATIC_ASSERT(DAMETH_NARROW_MASKPROPS(DAMETH_MASKPROPS) == DAMETH_MASK);
EDUKE32_STATIC_ASSERT(DAMETH_NARROW_MASKPROPS(DAMETH_CLAMPED) == DAMETH_CLAMPED);
#define TO_DAMETH_NODOWNSIZE(hicr_flags) (((hicr_flags)&HICR_NODOWNSIZE)<<8)
EDUKE32_STATIC_ASSERT(TO_DAMETH_NODOWNSIZE(HICR_NODOWNSIZE) == DAMETH_NODOWNSIZE);
#define TO_DAMETH_NOTEXCOMPRESS(hicr_flags) (((hicr_flags)&HICR_NOTEXCOMPRESS)<<15)
EDUKE32_STATIC_ASSERT(TO_DAMETH_NOTEXCOMPRESS(HICR_NOTEXCOMPRESS) == DAMETH_NOTEXCOMPRESS);
#define TO_DAMETH_ARTIMMUNITY(hicr_flags) (((hicr_flags)&HICR_ARTIMMUNITY)<<13)
EDUKE32_STATIC_ASSERT(TO_DAMETH_ARTIMMUNITY(HICR_ARTIMMUNITY) == DAMETH_ARTIMMUNITY);
// Do we want a NPOT-y-as-classic texture for this <dameth> and <ysiz>?
static FORCE_INLINE int polymost_want_npotytex(int32_t dameth, int32_t ysiz)
{
return polymost_is_npotmode() && (dameth&DAMETH_WALL) && check_nonpow2(ysiz);
}
// pthtyp pth->flags bits
enum pthtyp_flags {
PTH_CLAMPED = 1,
PTH_HIGHTILE = 2,
PTH_SKYBOX = 4,
PTH_HASALPHA = 8,
PTH_HASFULLBRIGHT = 16,
PTH_NPOTWALL = DAMETH_WALL, // r_npotwallmode=1 generated texture
PTH_FORCEFILTER = 64,
PTH_INVALIDATED = 128,
PTH_NOTRANSFIX = 256, // fixtransparency() bypassed
PTH_INDEXED = 512,
PTH_ONEBITALPHA = 1024,
};
typedef struct pthtyp_t
{
struct pthtyp_t *next;
struct pthtyp_t *ofb; // fullbright pixels
hicreplctyp *hicr;
FHardwareTexture * glpic;
vec2f_t scale;
vec2_t siz;
int16_t picnum;
uint16_t flags; // see pthtyp_flags
polytintflags_t effects;
char palnum;
char shade;
char skyface;
} pthtyp;
// DAMETH -> PTH conversions
#define TO_PTH_CLAMPED(dameth) (((dameth)&DAMETH_CLAMPED)>>2)
EDUKE32_STATIC_ASSERT(TO_PTH_CLAMPED(DAMETH_CLAMPED) == PTH_CLAMPED);
#define TO_PTH_NOTRANSFIX(dameth) ((((~(dameth))&DAMETH_MASK)<<8)&(((~(dameth))&DAMETH_TRANS1)<<7))
EDUKE32_STATIC_ASSERT(TO_PTH_NOTRANSFIX(DAMETH_NOMASK) == PTH_NOTRANSFIX);
EDUKE32_STATIC_ASSERT(TO_PTH_NOTRANSFIX(DAMETH_MASK) == 0);
EDUKE32_STATIC_ASSERT(TO_PTH_NOTRANSFIX(DAMETH_TRANS1) == 0);
EDUKE32_STATIC_ASSERT(TO_PTH_NOTRANSFIX(DAMETH_MASKPROPS) == 0);
extern void gloadtile_art(int32_t,int32_t,int32_t,int32_t,int32_t,pthtyp *,int32_t);
extern int32_t gloadtile_hi(int32_t,int32_t,int32_t,hicreplctyp *,int32_t,pthtyp *,int32_t, polytintflags_t);
extern int32_t globalnoeffect;
extern int32_t drawingskybox;
extern int32_t hicprecaching;
extern float fcosglobalang, fsinglobalang;
extern float fxdim, fydim, fydimen, fviewingrange;
extern char ptempbuf[MAXWALLSB<<1];
extern hitdata_t polymost_hitdata;
#include "texcache.h"
extern void polymost_setupglowtexture(int32_t texunits, FHardwareTexture *tex);
extern void polymost_setupdetailtexture(int32_t texunits, FHardwareTexture* tex);
#endif
#endif
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