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Control legacy GL context via environment variable

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For testing purposes, we may want to force the creation of legacy GL
contexts via an environment variable.

https://bugzilla.gnome.org/show_bug.cgi?id=756142
This commit is contained in:
Emmanuele Bassi 2015-10-06 19:57:45 +01:00
parent 18cae47e17
commit 105f1c9fd3
3 changed files with 5 additions and 2 deletions
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1
gdk/gdk.c
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@ -144,6 +144,7 @@ static const GDebugKey gdk_gl_keys[] = {
{"software-draw-gl", GDK_GL_SOFTWARE_DRAW_GL},
{"software-draw-surface", GDK_GL_SOFTWARE_DRAW_SURFACE},
{"texture-rectangle", GDK_GL_TEXTURE_RECTANGLE},
{"legacy", GDK_GL_LEGACY},
};
#ifdef G_ENABLE_DEBUG

3
gdk/gdkinternals.h
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@ -99,7 +99,8 @@ typedef enum {
GDK_GL_ALWAYS = 1 << 1,
GDK_GL_SOFTWARE_DRAW_GL = 1 << 2,
GDK_GL_SOFTWARE_DRAW_SURFACE = 1 << 3,
GDK_GL_TEXTURE_RECTANGLE = 1 << 4
GDK_GL_TEXTURE_RECTANGLE = 1 << 4,
GDK_GL_LEGACY = 1 << 5
} GdkGLFlags;
extern GList *_gdk_default_filters;

3
gdk/x11/gdkglcontext-x11.c
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@ -638,7 +638,8 @@ gdk_x11_gl_context_realize (GdkGLContext *context,
compat_bit = gdk_gl_context_get_forward_compatible (context);
/* If there is no glXCreateContextAttribsARB() then we default to legacy */
legacy_bit = !GDK_X11_DISPLAY (display)->has_glx_create_context;
legacy_bit = !GDK_X11_DISPLAY (display)->has_glx_create_context ||
(_gdk_gl_flags & GDK_GL_LEGACY) != 0;
/* We cannot share legacy contexts with core profile ones, so the
* shared context is the one that decides if we're going to create