# HG changeset patch
# User Pantxo Diribarne <pantxo.diribarne@gmail.com>
# Date 1575307392 -3600
# Node ID 3212c50369cbbc0c535f251c721442db62e98967
# Parent  0ca7f17de0416cc703acf6b71d0db5b83297b6d2
Make graphics antialiasing and blending independent (bug #57343)

* gl-render.cc (opengl_renderer::init_gl_context): Enable GL_BLEND whatever the
  value of "enhanced" variable.

diff -r 0ca7f17de041 -r 3212c50369cb libinterp/corefcn/gl-render.cc
--- a/libinterp/corefcn/gl-render.cc	Mon Dec 02 18:20:28 2019 -0600
+++ b/libinterp/corefcn/gl-render.cc	Mon Dec 02 18:23:12 2019 +0100
@@ -834,10 +834,10 @@
     m_glfcns.glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     m_glfcns.glAlphaFunc (GL_GREATER, 0.0f);
     m_glfcns.glEnable (GL_NORMALIZE);
+    m_glfcns.glEnable (GL_BLEND);
 
     if (enhanced)
       {
-        m_glfcns.glEnable (GL_BLEND);
         m_glfcns.glEnable (GL_MULTISAMPLE);
         bool has_multisample = false;
         if (! m_glfcns.glGetError ())
@@ -863,7 +863,6 @@
       }
     else
       {
-        m_glfcns.glDisable (GL_BLEND);
         m_glfcns.glDisable (GL_LINE_SMOOTH);
       }