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- only do shade clamps if needed

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This commit is contained in:
Magnus Norddahl 2018-11-26 12:18:07 +01:00
parent 52b7a77771
commit 2db433e68f
2 changed files with 26 additions and 12 deletions
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2
src/polyrenderer/drawers/poly_triangle.h
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@ -83,7 +83,7 @@ public:
float worldposZ[MAXWIDTH];
uint32_t texel[MAXWIDTH];
int32_t texelV[MAXWIDTH];
fixed_t lightarray[MAXWIDTH];
uint16_t lightarray[MAXWIDTH];
uint32_t dynlights[MAXWIDTH];
static PolyTriangleThreadData *Get(DrawerThread *thread);

36
src/polyrenderer/drawers/screen_triangle.cpp
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@ -403,7 +403,7 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
float *worldposZ = thread->worldposZ;
uint32_t *texel = thread->texel;
int32_t *texelV = thread->texelV;
fixed_t *lightarray = thread->lightarray;
uint16_t *lightarray = thread->lightarray;
uint32_t *dynlights = thread->dynlights;
if (!(ModeT::SWFlags & SWSTYLEF_Fill) && !(ModeT::SWFlags & SWSTYLEF_FogBoundary))
@ -463,6 +463,29 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
shade = (fixed_t)((2.0f - (light + 12.0f) / 128.0f) * (float)FRACUNIT);
lightpos = (fixed_t)(globVis * posW * (float)FRACUNIT);
lightstep = (fixed_t)(globVis * stepW * (float)FRACUNIT);
fixed_t maxvis = 24 * FRACUNIT / 32;
fixed_t maxlight = 31 * FRACUNIT / 32;
fixed_t lightend = lightpos + lightstep * (x1 - x0);
if (lightpos < maxvis && shade >= lightpos && shade - lightpos <= maxlight &&
lightend < maxvis && shade >= lightend && shade - lightend <= maxlight)
{
lightpos += FRACUNIT - shade;
for (int x = x0; x < x1; x++)
{
lightarray[x] = lightpos >> 8;
lightpos += lightstep;
}
}
else
{
for (int x = x0; x < x1; x++)
{
lightarray[x] = (FRACUNIT - clamp<fixed_t>(shade - MIN(maxvis, lightpos), 0, maxlight)) >> 8;
lightpos += lightstep;
}
}
}
for (int x = x0; x < x1; x++)
@ -477,15 +500,6 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
posWorldY += stepWorldY;
posWorldZ += stepWorldZ;
}
if (!(OptT::Flags & SWOPT_FixedLight))
{
fixed_t maxvis = 24 * FRACUNIT / 32;
fixed_t maxlight = 31 * FRACUNIT / 32;
lightarray[x] = (FRACUNIT - clamp<fixed_t>(shade - MIN(maxvis, lightpos), 0, maxlight)) >> 8;
lightpos += lightstep;
}
if (!(ModeT::SWFlags & SWSTYLEF_Fill) && !(ModeT::SWFlags & SWSTYLEF_FogBoundary))
{
float rcpW = 0x01000000 / posW;
@ -706,7 +720,7 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
__m128i mfg = _mm_unpacklo_epi8(_mm_setr_epi32(texPixels[texel[x]], texPixels[texel[x + 1]], 0, 0), _mm_setzero_si128());
if (!(OptT::Flags & SWOPT_FixedLight))
mlightshade = _mm_shuffle_epi32(_mm_shufflelo_epi16(_mm_loadl_epi64((const __m128i*)&lightarray[x]), _MM_SHUFFLE(2, 2, 0, 0)), _MM_SHUFFLE(1, 1, 0, 0));
mlightshade = _mm_shuffle_epi32(_mm_shufflelo_epi16(_mm_cvtsi32_si128(*(int*)&lightarray[x]), _MM_SHUFFLE(1, 1, 0, 0)), _MM_SHUFFLE(1, 1, 0, 0));
if (OptT::Flags & SWOPT_DynLights)
{