diff options
Diffstat (limited to 'GPU3D_Soft.cpp')
| -rw-r--r-- | GPU3D_Soft.cpp | 53 |
1 files changed, 49 insertions, 4 deletions
diff --git a/GPU3D_Soft.cpp b/GPU3D_Soft.cpp index b1919f5..8551aa5 100644 --- a/GPU3D_Soft.cpp +++ b/GPU3D_Soft.cpp @@ -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)) + { + 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 { - ColorBuffer[i] = 0x00000000; - DepthBuffer[i] = 0xFFFFFF; + // 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++) |