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Clear float equal warnings

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This commit is contained in:
Alam Ed Arias 2018-12-14 19:33:40 -05:00
parent 880c017f8f
commit 6fd66bdb49
8 changed files with 32 additions and 24 deletions
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4
src/Makefile.cfg
View file

@ -112,9 +112,7 @@ ifndef GCC295
WFLAGS+=-Wno-div-by-zero WFLAGS+=-Wno-div-by-zero
endif endif
#WFLAGS+=-Wsystem-headers #WFLAGS+=-Wsystem-headers
ifndef ERRORMODE WFLAGS+=-Wfloat-equal
#WFLAGS+=-Wfloat-equal
endif
#WFLAGS+=-Wtraditional #WFLAGS+=-Wtraditional
ifdef VCHELP ifdef VCHELP
WFLAGS+=-Wdeclaration-after-statement WFLAGS+=-Wdeclaration-after-statement

2
src/command.c
View file

@ -1102,7 +1102,7 @@ static void Setvalue(consvar_t *var, const char *valstr, boolean stealth)
if (var->flags & CV_FLOAT) if (var->flags & CV_FLOAT)
{ {
double d = atof(valstr); double d = atof(valstr);
if (!d && valstr[0] != '0') if (fpclassify(d) == FP_ZERO && valstr[0] != '0')
v = INT32_MIN; v = INT32_MIN;
else else
v = (INT32)(d * FRACUNIT); v = (INT32)(d * FRACUNIT);

9
src/hardware/hw_bsp.c
View file

@ -193,7 +193,7 @@ static polyvertex_t *fracdivline(fdivline_t *bsp, polyvertex_t *v1,
v2dy = bsp->dy; v2dy = bsp->dy;
den = v2dy*v1dx - v2dx*v1dy; den = v2dy*v1dx - v2dx*v1dy;
if (den == 0) if (fabsf(den) < 1.0E-36f)
return NULL; // parallel return NULL; // parallel
// first check the frac along the polygon segment, // first check the frac along the polygon segment,
@ -253,11 +253,16 @@ static boolean SameVertice (polyvertex_t *p1, polyvertex_t *p2)
diff = p2->y - p1->y; diff = p2->y - p1->y;
if (diff < -1.5f || diff > 1.5f) if (diff < -1.5f || diff > 1.5f)
return false; return false;
#else #elif 0
if (p1->x != p2->x) if (p1->x != p2->x)
return false; return false;
if (p1->y != p2->y) if (p1->y != p2->y)
return false; return false;
#else
if (fabsf( p2->x - p1->x ) > 1.0E-36f )
return false;
if (fabsf( p2->y - p1->y ) > 1.0E-36f )
return false;
#endif #endif
// p1 and p2 are considered the same vertex // p1 and p2 are considered the same vertex
return true; return true;

12
src/hardware/hw_draw.c
View file

@ -227,14 +227,14 @@ void HWR_DrawFixedPatch(GLPatch_t *gpatch, fixed_t x, fixed_t y, fixed_t pscale,
Z_Free(realpatch); Z_Free(realpatch);
} }
// centre screen // centre screen
if ((float)vid.width != (float)BASEVIDWIDTH * dupx) if (fabsf((float)vid.width - (float)BASEVIDWIDTH * dupx) > 1.0E-36f)
{ {
if (option & V_SNAPTORIGHT) if (option & V_SNAPTORIGHT)
cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx)); cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx));
else if (!(option & V_SNAPTOLEFT)) else if (!(option & V_SNAPTOLEFT))
cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx))/2; cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx))/2;
} }
if ((float)vid.height != (float)BASEVIDHEIGHT * dupy) if (fabsf((float)vid.height - (float)BASEVIDHEIGHT * dupy) > 1.0E-36f)
{ {
if ((option & (V_SPLITSCREEN|V_SNAPTOBOTTOM)) == (V_SPLITSCREEN|V_SNAPTOBOTTOM)) if ((option & (V_SPLITSCREEN|V_SNAPTOBOTTOM)) == (V_SPLITSCREEN|V_SNAPTOBOTTOM))
cy += ((float)vid.height/2 - ((float)BASEVIDHEIGHT/2 * dupy)); cy += ((float)vid.height/2 - ((float)BASEVIDHEIGHT/2 * dupy));
@ -375,14 +375,14 @@ void HWR_DrawCroppedPatch(GLPatch_t *gpatch, fixed_t x, fixed_t y, fixed_t pscal
Z_Free(realpatch); Z_Free(realpatch);
} }
// centre screen // centre screen
if ((float)vid.width != (float)BASEVIDWIDTH * dupx) if (fabsf((float)vid.width - (float)BASEVIDWIDTH * dupx) > 1.0E-36f)
{ {
if (option & V_SNAPTORIGHT) if (option & V_SNAPTORIGHT)
cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx)); cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx));
else if (!(option & V_SNAPTOLEFT)) else if (!(option & V_SNAPTOLEFT))
cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx))/2; cx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx))/2;
} }
if ((float)vid.height != (float)BASEVIDHEIGHT * dupy) if (fabsf((float)vid.height - (float)BASEVIDHEIGHT * dupy) > 1.0E-36f)
{ {
if ((option & (V_SPLITSCREEN|V_SNAPTOBOTTOM)) == (V_SPLITSCREEN|V_SNAPTOBOTTOM)) if ((option & (V_SPLITSCREEN|V_SNAPTOBOTTOM)) == (V_SPLITSCREEN|V_SNAPTOBOTTOM))
cy += ((float)vid.height/2 - ((float)BASEVIDHEIGHT/2 * dupy)); cy += ((float)vid.height/2 - ((float)BASEVIDHEIGHT/2 * dupy));
@ -846,14 +846,14 @@ void HWR_DrawFill(INT32 x, INT32 y, INT32 w, INT32 h, INT32 color)
fw *= dupx; fw *= dupx;
fh *= dupy; fh *= dupy;
if ((float)vid.width != (float)BASEVIDWIDTH * dupx) if (fabsf((float)vid.width - (float)BASEVIDWIDTH * dupx) > 1.0E-36f)
{ {
if (color & V_SNAPTORIGHT) if (color & V_SNAPTORIGHT)
fx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx)); fx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx));
else if (!(color & V_SNAPTOLEFT)) else if (!(color & V_SNAPTOLEFT))
fx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx)) / 2; fx += ((float)vid.width - ((float)BASEVIDWIDTH * dupx)) / 2;
} }
if ((float)vid.height != (float)BASEVIDHEIGHT * dupy) if (fabsf((float)vid.height - (float)BASEVIDHEIGHT * dupy) > 1.0E-36f)
{ {
// same thing here // same thing here
if (color & V_SNAPTOBOTTOM) if (color & V_SNAPTOBOTTOM)

10
src/hardware/hw_main.c
View file

@ -4137,7 +4137,7 @@ static void HWR_DrawSpriteShadow(gr_vissprite_t *spr, GLPatch_t *gpatch, float t
swallVerts[0].z = swallVerts[3].z = spr->z1; swallVerts[0].z = swallVerts[3].z = spr->z1;
swallVerts[2].z = swallVerts[1].z = spr->z2; swallVerts[2].z = swallVerts[1].z = spr->z2;
if (spr->mobj && this_scale != 1.0f) if (spr->mobj && fabsf(this_scale - 1.0f) > 1.0E-36f)
{ {
// Always a pixel above the floor, perfectly flat. // Always a pixel above the floor, perfectly flat.
swallVerts[0].y = swallVerts[1].y = swallVerts[2].y = swallVerts[3].y = spr->ty - gpatch->topoffset * this_scale - (floorheight+3); swallVerts[0].y = swallVerts[1].y = swallVerts[2].y = swallVerts[3].y = spr->ty - gpatch->topoffset * this_scale - (floorheight+3);
@ -4305,7 +4305,7 @@ static void HWR_SplitSprite(gr_vissprite_t *spr)
wallVerts[1].z = wallVerts[2].z = spr->z2; wallVerts[1].z = wallVerts[2].z = spr->z2;
wallVerts[2].y = wallVerts[3].y = spr->ty; wallVerts[2].y = wallVerts[3].y = spr->ty;
if (spr->mobj && this_scale != 1.0f) if (spr->mobj && fabsf(this_scale - 1.0f) > 1.0E-36f)
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height * this_scale; wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height * this_scale;
else else
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height; wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height;
@ -4585,7 +4585,7 @@ static void HWR_DrawSprite(gr_vissprite_t *spr)
wallVerts[0].x = wallVerts[3].x = spr->x1; wallVerts[0].x = wallVerts[3].x = spr->x1;
wallVerts[2].x = wallVerts[1].x = spr->x2; wallVerts[2].x = wallVerts[1].x = spr->x2;
wallVerts[2].y = wallVerts[3].y = spr->ty; wallVerts[2].y = wallVerts[3].y = spr->ty;
if (spr->mobj && this_scale != 1.0f) if (spr->mobj && fabsf(this_scale - 1.0f) > 1.0E-36f)
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height * this_scale; wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height * this_scale;
else else
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height; wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height;
@ -4831,7 +4831,7 @@ static void HWR_SortVisSprites(void)
best = ds; best = ds;
} }
// order visprites of same scale by dispoffset, smallest first // order visprites of same scale by dispoffset, smallest first
else if (ds->tz == bestdist && ds->dispoffset < bestdispoffset) else if (fabsf(ds->tz - bestdist) < 1.0E-36f && ds->dispoffset < bestdispoffset)
{ {
bestdispoffset = ds->dispoffset; bestdispoffset = ds->dispoffset;
best = ds; best = ds;
@ -5752,7 +5752,7 @@ void HWR_SetViewSize(void)
gr_viewwindowx = (vid.width - gr_viewwidth) / 2; gr_viewwindowx = (vid.width - gr_viewwidth) / 2;
gr_windowcenterx = (float)(vid.width / 2); gr_windowcenterx = (float)(vid.width / 2);
if (gr_viewwidth == vid.width) if (fabsf(gr_viewwidth - vid.width) < 1.0E-36f)
{ {
gr_baseviewwindowy = 0; gr_baseviewwindowy = 0;
gr_basewindowcentery = gr_viewheight / 2; // window top left corner at 0,0 gr_basewindowcentery = gr_viewheight / 2; // window top left corner at 0,0

11
src/hardware/r_opengl/r_opengl.c
View file

@ -602,7 +602,8 @@ static void GLPerspective(GLdouble fovy, GLdouble aspect)
const GLdouble deltaZ = zFar - zNear; const GLdouble deltaZ = zFar - zNear;
GLdouble cotangent; GLdouble cotangent;
if ((deltaZ == 0.0f) || (sine == 0.0f) || (aspect == 0.0f)) { if ((fabsf(deltaZ) < 1.0E-36f) || fpclassify(sine) == FP_ZERO || fpclassify(aspect) == FP_ZERO)
{
return; return;
} }
cotangent = cos(radians) / sine; cotangent = cos(radians) / sine;
@ -641,7 +642,7 @@ static void GLProject(GLdouble objX, GLdouble objY, GLdouble objZ,
out[2] * projMatrix[2*4+i] + out[2] * projMatrix[2*4+i] +
out[3] * projMatrix[3*4+i]; out[3] * projMatrix[3*4+i];
} }
if (in[3] == 0.0f) return; if (fpclassify(in[3]) == FP_ZERO) return;
in[0] /= in[3]; in[0] /= in[3];
in[1] /= in[3]; in[1] /= in[3];
in[2] /= in[3]; in[2] /= in[3];
@ -1986,7 +1987,7 @@ static void DrawMD2Ex(INT32 *gl_cmd_buffer, md2_frame_t *frame, INT32 duration,
pglTexCoord2f(s, t); pglTexCoord2f(s, t);
if (!nextframe || pol == 0.0f) if (!nextframe || fpclassify(pol) == FP_ZERO)
{ {
pglNormal3f(frame->vertices[pindex].normal[0], pglNormal3f(frame->vertices[pindex].normal[0],
frame->vertices[pindex].normal[1], frame->vertices[pindex].normal[1],
@ -2055,6 +2056,7 @@ EXPORT void HWRAPI(SetTransform) (FTransform *stransform)
pglLoadIdentity(); pglLoadIdentity();
if (stransform) if (stransform)
{ {
boolean fovx90;
// keep a trace of the transformation for md2 // keep a trace of the transformation for md2
memcpy(&md2_transform, stransform, sizeof (md2_transform)); memcpy(&md2_transform, stransform, sizeof (md2_transform));
@ -2069,7 +2071,8 @@ EXPORT void HWRAPI(SetTransform) (FTransform *stransform)
pglMatrixMode(GL_PROJECTION); pglMatrixMode(GL_PROJECTION);
pglLoadIdentity(); pglLoadIdentity();
special_splitscreen = (stransform->splitscreen && stransform->fovxangle == 90.0f); fovx90 = stransform->fovxangle > 0.0f && fabsf(stransform->fovxangle - 90.0f) < 0.5f;
special_splitscreen = (stransform->splitscreen && fovx90);
if (special_splitscreen) if (special_splitscreen)
GLPerspective(53.13l, 2*ASPECT_RATIO); // 53.13 = 2*atan(0.5) GLPerspective(53.13l, 2*ASPECT_RATIO); // 53.13 = 2*atan(0.5)
else else

2
src/r_data.c
View file

@ -1220,7 +1220,7 @@ INT32 R_CreateColormap(char *p1, char *p2, char *p3)
continue; continue;
if (maskcolor == extra_colormaps[i].maskcolor if (maskcolor == extra_colormaps[i].maskcolor
&& fadecolor == extra_colormaps[i].fadecolor && fadecolor == extra_colormaps[i].fadecolor
&& (float)maskamt == (float)extra_colormaps[i].maskamt && fabsf(maskamt - extra_colormaps[i].maskamt) < 1.0E-36f
&& fadestart == extra_colormaps[i].fadestart && fadestart == extra_colormaps[i].fadestart
&& fadeend == extra_colormaps[i].fadeend && fadeend == extra_colormaps[i].fadeend
&& fog == extra_colormaps[i].fog) && fog == extra_colormaps[i].fog)

6
src/sdl/mixer_sound.c
View file

@ -759,6 +759,7 @@ void I_UnloadSong(void)
boolean I_PlaySong(boolean looping) boolean I_PlaySong(boolean looping)
{ {
boolean lpz = fpclassify(loop_point) == FP_ZERO;
#ifdef HAVE_LIBGME #ifdef HAVE_LIBGME
if (gme) if (gme)
{ {
@ -772,14 +773,15 @@ boolean I_PlaySong(boolean looping)
if (!music) if (!music)
return false; return false;
if (Mix_PlayMusic(music, looping && loop_point == 0.0f ? -1 : 0) == -1)
if (Mix_PlayMusic(music, looping && lpz ? -1 : 0) == -1)
{ {
CONS_Alert(CONS_ERROR, "Mix_PlayMusic: %s\n", Mix_GetError()); CONS_Alert(CONS_ERROR, "Mix_PlayMusic: %s\n", Mix_GetError());
return false; return false;
} }
Mix_VolumeMusic((UINT32)music_volume*128/31); Mix_VolumeMusic((UINT32)music_volume*128/31);
if (loop_point != 0.0f) if (!lpz)
Mix_HookMusicFinished(music_loop); Mix_HookMusicFinished(music_loop);
return true; return true;
} }