softgpu: Fix triangle borders not fitting together properly.
SoftGpu: Add support for triangle fans.
softgpu: Implement texture scaling, texture offset and texture coordinate wrapping/clamping.
softgpu: Implement depth range test.
softgpu: Small cleanup in Clipper.
softgpu: Disable backface culling when requested.
softgpu: Change framebuffer writes to act on actual 16 bit pixels if that's the framebuffer format.
softgpu: Lots of clearmode fixes.
softgpu: Hackfix CLUT4 texture deswizzling.
softgpu: Optimization, part 1.
softgpu: Optimization, part 2.
softgpu: Optimization, part 3.
softgpu: Restructure texture sampling code a bit.
softgpu: Make perspective correct uv mapping code more readable and implement projection mapping.
softgpu: Implement environment mapping.
softgpu/Rasterizer: Structure some code more clearly.
softgpu: Add some safety checks.
softgpu: Fix a lighting bug.
softgpu: Implement spline surface drawing (without patch subdivision).