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Merge pull request #20 from shpuld/feat/working-16bit-lms

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cypress 2023-09-12 05:36:26 -04:00 committed by GitHub
commit 2712c3fdfd
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2 changed files with 17 additions and 8 deletions
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2
source/psp/video_hardware_draw.cpp
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@ -2911,7 +2911,7 @@ int GL_LoadTextureLM (const char *identifier, int width, int height, const byte
texture.format = GU_PSM_T8;
break;
case 2:
texture.format = GU_PSM_4444;
texture.format = GU_PSM_5551;
break;
case 3:
texture.format = GU_PSM_8888;

23
source/psp/video_hardware_surface.cpp
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@ -224,6 +224,7 @@ void R_BuildLightMap (msurface_t *surf, byte *dest, int stride)
unsigned scale;
int maps;
unsigned *bl;
int r, g, b, a;
//unsigned *blcr, *blcg, *blcb;
@ -326,17 +327,25 @@ store:
break;
case 2:
bl = blocklights;
union luxel {
unsigned short rgb;
byte bytes[2];
};
for (i=0 ; i<tmax ; i++ ,dest += stride)
{
for (j=0 ; j<smax ; j++)
for (j=0 ; j<smax*2 ; j++)
{
// LordHavoc: .lit support begin
t = ((bl[0] + bl[1] + bl[2]) * 85) >> 15; // LordHavoc: basically / 3, but faster and combined with >> 7 shift down, note: actual number would be 85.3333...
r = bl[0] >> 7; if (r > 255) r = 255; r = r >> 3;
g = bl[1] >> 7; if (g > 255) g = 255; g = g >> 3;
b = bl[2] >> 7; if (b > 255) b = 255; b = b >> 3;
luxel lx;
lx.rgb = (a << 15) | (b << 10) | (g << 5) | (r);
dest[j] = lx.bytes[0];
j++;
dest[j] = lx.bytes[1];
bl += 3;
// LordHavoc: .lit support end
if (t > 255)
t = 255;
dest[j] = t;
}
}
break;