OrdinaryMagician/vkdoom_m
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Add true color support to voxel renderer

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This commit is contained in:
Magnus Norddahl 2017-02-12 01:27:26 +01:00
commit 5a85fabfa6
5 changed files with 83 additions and 3 deletions
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46
src/r_data/voxels.cpp
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@ -392,6 +392,52 @@ FVoxel::~FVoxel()
if (Palette != NULL) delete [] Palette;
}
//==========================================================================
//
// Create true color version of the slab data
//
//==========================================================================
void FVoxel::CreateBgraSlabData()
{
assert(Palette != NULL);
for (int i = 0; i < NumMips; ++i)
{
int size = Mips[i].OffsetX[Mips[i].SizeX];
if (size <= 0) continue;
Mips[i].SlabDataBgra.Resize(size);
kvxslab_t *src = (kvxslab_t*)Mips[i].SlabData;
kvxslab_bgra_t *dest = (kvxslab_bgra_t*)&Mips[i].SlabDataBgra[0];
while (size >= 3)
{
dest->backfacecull = src->backfacecull;
dest->ztop = src->ztop;
dest->zleng = src->zleng;
int slabzleng = src->zleng;
for (int j = 0; j < slabzleng; ++j)
{
int colorIndex = src->col[j];
uint32_t red = (Palette[colorIndex * 3 + 0] << 2) | (Palette[colorIndex * 3 + 0] >> 4);
uint32_t green = (Palette[colorIndex * 3 + 1] << 2) | (Palette[colorIndex * 3 + 1] >> 4);
uint32_t blue = (Palette[colorIndex * 3 + 2] << 2) | (Palette[colorIndex * 3 + 2] >> 4);
dest->col[j] = 0xff000000 | (red << 16) | (green << 8) | blue;
}
slabzleng += 3;
dest = (kvxslab_bgra_t *)((uint32_t *)dest + slabzleng);
src = (kvxslab_t *)((BYTE *)src + slabzleng);
size -= slabzleng;
}
}
}
//==========================================================================
//
// Remap the voxel to the game palette