OrdinaryMagician/vkdoom_m
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Fix mipmap generation bug

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Fix crash due to dc_source2 not always being set
Add r_lod_bias to control mipmap selection
Improve LOD calculations to take the U texture coordinate into account
This commit is contained in:
Magnus Norddahl 2016-11-05 16:12:59 +01:00
commit d084f77546
7 changed files with 50 additions and 25 deletions
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12
src/textures/texture.cpp
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@ -456,7 +456,7 @@ void FTexture::GenerateBgraMipmaps()
Color4f src11 = src[sy1 + sx1 * srch];
Color4f c = (src00 + src01 + src10 + src11) * 0.25f;
dest[y + x * h] = src00;
dest[y + x * h] = c;
}
}
@ -483,7 +483,7 @@ void FTexture::GenerateBgraMipmaps()
smoothed[y + x * h] = c;
}
}
float k = 0.04f;
float k = 0.08f;
for (int j = 0; j < w * h; j++)
dest[j] = dest[j] + (dest[j] - smoothed[j]) * k;
@ -502,10 +502,10 @@ void FTexture::GenerateBgraMipmaps()
int h = MAX(Height >> i, 1);
for (int j = 0; j < w * h; j++)
{
uint32_t a = (uint32_t)clamp(powf(src[j].a, 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t r = (uint32_t)clamp(powf(src[j].r, 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t g = (uint32_t)clamp(powf(src[j].g, 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t b = (uint32_t)clamp(powf(src[j].b, 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t a = (uint32_t)clamp(powf(MAX(src[j].a, 0.0f), 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t r = (uint32_t)clamp(powf(MAX(src[j].r, 0.0f), 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t g = (uint32_t)clamp(powf(MAX(src[j].g, 0.0f), 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
uint32_t b = (uint32_t)clamp(powf(MAX(src[j].b, 0.0f), 1.0f / 2.2f) * 255.0f + 0.5f, 0.0f, 255.0f);
dest[j] = (a << 24) | (r << 16) | (g << 8) | b;
}
src += w * h;