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proper clear-plane support, including bitmap mode

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StapleButter
2017-03-07 01:13:00 +01:00
parent 72209c51f9
commit d95d22837b
4 changed files with 105 additions and 9 deletions
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53
GPU3D_Soft.cpp
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@ -582,11 +582,56 @@ void RenderFrame(u32 attr, Vertex* vertices, Polygon* polygons, int npolys)
{
// TODO: render translucent polygons last
// TODO proper clear color/depth support!
for (int i = 0; i < 256*192; i++)
// TODO: fog, poly ID, other attributes
if (DispCnt & (1<<14))
{
ColorBuffer[i] = 0x00000000;
DepthBuffer[i] = 0xFFFFFF;
u8 xoff = (ClearAttr2 >> 16) & 0xFF;
u8 yoff = (ClearAttr2 >> 24) & 0xFF;
for (int y = 0; y < 256*192; y += 256)
{
for (int x = 0; x < 256; x++)
{
u16 val2 = GPU::ReadVRAM_Texture<u16>(0x40000 + (yoff << 9) + (xoff << 1));
u16 val3 = GPU::ReadVRAM_Texture<u16>(0x60000 + (yoff << 9) + (xoff << 1));
// TODO: confirm color conversion
u32 r = (val2 << 1) & 0x3E; if (r) r++;
u32 g = (val2 >> 4) & 0x3E; if (g) g++;
u32 b = (val2 >> 9) & 0x3E; if (b) b++;
u32 a = (val2 & 0x8000) ? 0x1F000000 : 0;
u32 color = r | (g << 8) | (b << 16) | a;
u32 z = ((val3 & 0x7FFF) * 0x200) + 0x1FF;
if (z >= 0x10000 && z < 0xFFFFFF) z++;
ColorBuffer[y+x] = color;
DepthBuffer[y+x] = z;
xoff++;
}
yoff++;
}
}
else
{
// TODO: confirm color conversion
u32 r = (ClearAttr1 << 1) & 0x3E; if (r) r++;
u32 g = (ClearAttr1 >> 4) & 0x3E; if (g) g++;
u32 b = (ClearAttr1 >> 9) & 0x3E; if (b) b++;
u32 a = (ClearAttr1 >> 16) & 0x1F;
u32 color = r | (g << 8) | (b << 16) | (a << 24);
u32 z = ((ClearAttr2 & 0x7FFF) * 0x200) + 0x1FF;
if (z >= 0x10000 && z < 0xFFFFFF) z++;
for (int i = 0; i < 256*192; i++)
{
ColorBuffer[i] = color;
DepthBuffer[i] = z;
}
}
for (int i = 0; i < npolys; i++)