GPUCapabilities: Isolate GL_STEREO to GLContext

This is part of the Vulkan task T68990

This is a simple cleanup.

2 files changed, 3 insertions, 5 deletions

diff --git a/source/blender/gpu/intern/gpu_capabilities.cc b/source/blender/gpu/intern/gpu_capabilities.cc
index 83b9597abbb..71bf479b4a8 100644
--- a/source/blender/gpu/intern/gpu_capabilities.cc
+++ b/source/blender/gpu/intern/gpu_capabilities.cc
@@ -143,9 +143,7 @@ void GPU_mem_stats_get(int *totalmem, int *freemem)
 /* Return support for the active context + window. */
 bool GPU_stereo_quadbuffer_support(void)
 {
-  GLboolean stereo = GL_FALSE;
-  glGetBooleanv(GL_STEREO, &stereo);
-  return stereo == GL_TRUE;
+  return GPU_context_active_get()->front_right != nullptr;
 }
 
 /** \} */
diff --git a/source/blender/gpu/opengl/gl_context.cc b/source/blender/gpu/opengl/gl_context.cc
index 1495e665aa8..ec6cc9e6159 100644
--- a/source/blender/gpu/opengl/gl_context.cc
+++ b/source/blender/gpu/opengl/gl_context.cc
@@ -80,8 +80,8 @@ GLContext::GLContext(void *ghost_window, GLSharedOrphanLists &shared_orphan_list
       front_left = new GLFrameBuffer("front_left", this, GL_FRONT_LEFT, 0, w, h);
       back_left = new GLFrameBuffer("back_left", this, GL_BACK_LEFT, 0, w, h);
     }
-    /* TODO(fclem) enable is supported. */
-    const bool supports_stereo_quad_buffer = false;
+    GLboolean supports_stereo_quad_buffer = GL_FALSE;
+    glGetBooleanv(GL_STEREO, &supports_stereo_quad_buffer);
     if (supports_stereo_quad_buffer) {
       front_right = new GLFrameBuffer("front_right", this, GL_FRONT_RIGHT, 0, w, h);
       back_right = new GLFrameBuffer("back_right", this, GL_BACK_RIGHT, 0, w, h);