incidentalstoat/blankart
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Remove HWR_InitTextureMapping and related tables

Browse source 
https://git.do.srb2.org/STJr/SRB2/-/merge_requests/1773/diffs\?commit_id\=929925771c0a8602f2747f2523d35c6c9d7d6382
This commit is contained in:
NepDisk 2026-03-06 01:43:51 -05:00
parent 00679aea18
commit 23f6d025a2
2 changed files with 1 additions and 92 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

92
src/hardware/hw_main.c
View file

@ -73,26 +73,8 @@ void HWR_AddTransparentFloor(levelflat_t *levelflat, extrasubsector_t *xsub, boo
void HWR_AddTransparentPolyobjectFloor(levelflat_t *levelflat, polyobj_t *polysector, boolean isceiling, fixed_t fixedheight,
INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, extracolormap_t *planecolormap);
// ==========================================================================
// VIEW GLOBALS
// ==========================================================================
// Fineangles in the SCREENWIDTH wide window.
#define FIELDOFVIEW ANGLE_90
#define ABS(x) ((x) < 0 ? -(x) : (x))
static angle_t gl_clipangle;
// The viewangletox[viewangle + FINEANGLES/4] lookup
// maps the visible view angles to screen X coordinates,
// flattening the arc to a flat projection plane.
// There will be many angles mapped to the same X.
static INT32 gl_viewangletox[FINEANGLES/2];
// The xtoviewangleangle[] table maps a screen pixel
// to the lowest viewangle that maps back to x ranges
// from clipangle to -clipangle.
static angle_t gl_xtoviewangle[MAXVIDWIDTH+1];
// ==========================================================================
// GLOBALS
// ==========================================================================
@ -2958,78 +2940,6 @@ static void HWR_RenderBSPNode(INT32 bspnum)
HWR_Subsector(bspnum == -1 ? 0 : bspnum & ~NF_SUBSECTOR);
}
// ==========================================================================
// FROM R_MAIN.C
// ==========================================================================
//BP : exactely the same as R_InitTextureMapping
void HWR_InitTextureMapping(void)
{
angle_t i;
INT32 x;
INT32 t;
fixed_t focallength;
fixed_t grcenterx;
fixed_t grcenterxfrac;
INT32 grviewwidth;
#define clipanglefov (FIELDOFVIEW>>ANGLETOFINESHIFT)
grviewwidth = vid.width;
grcenterx = grviewwidth/2;
grcenterxfrac = grcenterx<<FRACBITS;
// Use tangent table to generate viewangletox:
// viewangletox will give the next greatest x
// after the view angle.
//
// Calc focallength
// so FIELDOFVIEW angles covers SCREENWIDTH.
focallength = FixedDiv(grcenterxfrac,
FINETANGENT(FINEANGLES/4+clipanglefov/2));
for (i = 0; i < FINEANGLES/2; i++)
{
if (FINETANGENT(i) > FRACUNIT*2)
t = -1;
else if (FINETANGENT(i) < -FRACUNIT*2)
t = grviewwidth+1;
else
{
t = FixedMul(FINETANGENT(i), focallength);
t = (grcenterxfrac - t+FRACUNIT-1)>>FRACBITS;
if (t < -1)
t = -1;
else if (t > grviewwidth+1)
t = grviewwidth+1;
}
gl_viewangletox[i] = t;
}
// Scan viewangletox[] to generate xtoviewangle[]:
// xtoviewangle will give the smallest view angle
// that maps to x.
for (x = 0; x <= grviewwidth; x++)
{
i = 0;
while (gl_viewangletox[i]>x)
i++;
gl_xtoviewangle[x] = (i<<ANGLETOFINESHIFT) - ANGLE_90;
}
// Take out the fencepost cases from viewangletox.
for (i = 0; i < FINEANGLES/2; i++)
{
if (gl_viewangletox[i] == -1)
gl_viewangletox[i] = 0;
else if (gl_viewangletox[i] == grviewwidth+1)
gl_viewangletox[i] = grviewwidth;
}
gl_clipangle = gl_xtoviewangle[0];
}
// ==========================================================================
// gl_things.c
// ==========================================================================
@ -6060,7 +5970,7 @@ static void HWR_DrawSkyBackground(player_t *player)
// software doesn't draw any further than 1024 for skies anyway, but this doesn't overlap properly
// The only time this will probably be an issue is when a sky wider than 1024 is used as a sky AND a regular wall texture
angle = (dup_viewangle + gl_xtoviewangle[0]);
angle = (dup_viewangle + ANGLE_45);
dimensionmultiply = ((float)textures[texturetranslation[skytexture]]->width/256.0f);

1
src/hardware/hw_main.h
View file

@ -39,7 +39,6 @@ void HWR_RenderPlayerView(void);
void HWR_ClearSkyDome(void);
void HWR_BuildSkyDome(void);
void HWR_DrawFlatFill(INT32 x, INT32 y, INT32 w, INT32 h, lumpnum_t flatlumpnum);
void HWR_InitTextureMapping(void);
void HWR_SetViewSize(void);
void HWR_DrawStretchyFixedPatch(patch_t *gpatch, fixed_t x, fixed_t y, fixed_t pscale, fixed_t vscale, INT32 option, const UINT8 *colormap);
void HWR_DrawCroppedPatch(patch_t *gpatch, fixed_t x, fixed_t y, fixed_t scale, INT32 option, fixed_t sx, fixed_t sy, fixed_t w, fixed_t h);