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Restore legacy OpenGL 2.1 support.

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This commit is contained in:
Paul Chote
2020-04-22 00:13:23 +01:00
committed by abcdefg30
parent 839be24053
commit dac1f270ce
10 changed files with 224 additions and 39 deletions
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17
OpenRA.Platforms.Default/Sdl2GraphicsContext.cs
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@@ -35,14 +35,17 @@ namespace OpenRA.Platforms.Default
if (context == IntPtr.Zero || SDL.SDL_GL_MakeCurrent(window.Window, context) < 0)
throw new InvalidOperationException("Can not create OpenGL context. (Error: {0})".F(SDL.SDL_GetError()));
OpenGL.Initialize();
OpenGL.Initialize(window.GLProfile == GLProfile.Legacy);
OpenGL.CheckGLError();
uint vao;
OpenGL.CheckGLError();
OpenGL.glGenVertexArrays(1, out vao);
OpenGL.CheckGLError();
OpenGL.glBindVertexArray(vao);
OpenGL.CheckGLError();
if (OpenGL.Profile != GLProfile.Legacy)
{
uint vao;
OpenGL.glGenVertexArrays(1, out vao);
OpenGL.CheckGLError();
OpenGL.glBindVertexArray(vao);
OpenGL.CheckGLError();
}
OpenGL.glEnableVertexAttribArray(Shader.VertexPosAttributeIndex);
OpenGL.CheckGLError();