OrdinaryMagician/vkdoom_m
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Added bicubic interpolation when generating mipmaps

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This commit is contained in:
Magnus Norddahl 2016-06-25 12:14:15 +02:00
commit 3b6d177787
5 changed files with 178 additions and 0 deletions
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19
src/textures/texture.cpp
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@ -45,6 +45,7 @@
#include "v_video.h"
#include "m_fixed.h"
#include "textures/textures.h"
#include "textures/bicubic_interpolation.h"
#include "v_palette.h"
typedef bool (*CheckFunc)(FileReader & file);
@ -381,6 +382,24 @@ int FTexture::MipmapLevels() const
}
void FTexture::GenerateBgraMipmaps()
{
BicubicInterpolation bicubic;
uint32_t *src = PixelsBgra.data();
uint32_t *dest = src + Width * Height;
int levels = MipmapLevels();
for (int i = 1; i < levels; i++)
{
int w = MAX(Width >> i, 1);
int h = MAX(Height >> i, 1);
bicubic.ScaleImage(dest, h, w, src, Height, Width);
dest += w * h;
}
}
void FTexture::GenerateBgraMipmapsFast()
{
uint32_t *src = PixelsBgra.data();
uint32_t *dest = src + Width * Height;