Rlsw merge #5028
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Rlsw merge #5028
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Also replace the triangle rasterization functions with macros that generate specific functions for each state of the rendering system. Also, add the OpenGL definitions in order to add a binding for rlgl.
+ tweak function names
to be closer to the OpenGL API
+ review unorm/float conversion
Several depth and color formats have been added for the framebuffer. 8-bit, 16-bit, and 24-bit formats are now available for depth. RGB 8-bit (332), RGB 16-bit (565), and RGB 24-bit (888) formats are now available for color. Alpha support is no longer present for the framebuffer at the moment, but it can easily be restored by adding the formats and reinterpolating the alpha in the areas that do not perform color blending. Additionally, this commit brings performance improvements.
- `glDepthMask` - `glColorMask`
The support for the scissor test has been implemented for clearing as well as for triangle clipping. The implementation for lines and points is still missing. I also removed the 2D clipping of lines that used the Cohen-Sutherland algorithm, opting instead to always use the Liang-Barsky algorithm in all cases. This simplifies the implementation, and the 2D version would have caused issues when interpolating vertices in the future if we want to implement additional features.
increment all data
improved robustness against numerical errors incremental interpolation along Y simplified function, fewer jumps
+ increase max clipped polygon vertices (for extreme cases)
Sets the vertex count to zero when the polygon is invalid Stops clipping when the vertex count drops below 3
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