This MR adds a test that fails on Wine. It's not an easy fix because the Windows 16 bit OpenGL software renderer is pretty quirky and works differently from Linux OpenGL drivers, I'll make an issue in Bugzilla.
Wine output: ``` opengl.c:1863: Tests skipped: Skipping 16-bit rendering test (no 16 bit pixel format with the DRAW_TO_BITMAP flag was available) ```
Wine output without `todo_wine` and the skip: ``` opengl.c:1860: Test failed: Failed to get a 16-bit DRAW_TO_BITMAP pixel format opengl.c:1869: Test failed: Failed to DescribePixelFormat (error: 2000) opengl.c:1872: Test failed: Wrong amount of color bits (got 0, expected 16) opengl.c:1888: Test failed: Failed to SetPixelFormat (error: 2000) opengl.c:1892: Test failed: Failed to wglCreateContext (error: 2000) 0024:err:opengl:null_glClearColor unsupported 0024:err:opengl:null_glClear unsupported 0024:err:opengl:null_glFinish unsupported 0024:err:opengl:null_glMatrixMode unsupported 0024:err:opengl:null_glLoadIdentity unsupported 0024:err:opengl:null_glOrtho unsupported 0024:err:opengl:null_glMatrixMode unsupported 0024:err:opengl:null_glLoadIdentity unsupported 0024:err:opengl:null_glClearColor unsupported 0024:err:opengl:null_glClear unsupported 0024:err:opengl:null_glColor3f unsupported 0024:err:opengl:null_glLineWidth unsupported 0024:err:opengl:null_glBegin unsupported 0024:err:opengl:null_glVertex2i unsupported 0024:err:opengl:null_glVertex2i unsupported 0024:err:opengl:null_glEnd unsupported 0024:err:opengl:null_glFinish unsupported ```
-- v5: opengl32/tests: Add 16-bit bitmap rendering tests