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wayland: Implement asking for a GLES context

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Wayland uses EGL, which allows us to ask for a GLES context.

https://bugzilla.gnome.org/show_bug.cgi?id=743746
This commit is contained in:
Emmanuele Bassi 2016-04-18 10:13:05 +01:00
parent fe25ba3c5f
commit 2849f2fc9a
1 changed files with 23 additions and 11 deletions
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34
gdk/wayland/gdkglcontext-wayland.c
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@ -114,7 +114,7 @@ gdk_wayland_gl_context_realize (GdkGLContext *context,
EGLContext ctx;
EGLint context_attribs[N_EGL_ATTRS];
int major, minor, flags;
gboolean debug_bit, forward_bit, legacy_bit;
gboolean debug_bit, forward_bit, legacy_bit, use_es;
int i = 0;
gdk_gl_context_get_required_version (context, &major, &minor);
@ -122,6 +122,7 @@ gdk_wayland_gl_context_realize (GdkGLContext *context,
forward_bit = gdk_gl_context_get_forward_compatible (context);
legacy_bit = (_gdk_gl_flags & GDK_GL_LEGACY) != 0 ||
(share != NULL && gdk_gl_context_is_legacy (share));
use_es = gdk_gl_context_get_use_es (context);
flags = 0;
@ -130,17 +131,28 @@ gdk_wayland_gl_context_realize (GdkGLContext *context,
if (forward_bit)
flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
/* We want a core profile, unless in legacy mode */
context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
context_attribs[i++] = legacy_bit
? EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR
: EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
if (!use_es)
{
/* We want a core profile, unless in legacy mode */
context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
context_attribs[i++] = legacy_bit
? EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR
: EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
/* Specify the version */
context_attribs[i++] = EGL_CONTEXT_MAJOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 3 : major;
context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 0 : minor;
/* Specify the version */
context_attribs[i++] = EGL_CONTEXT_MAJOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 3 : major;
context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION_KHR;
context_attribs[i++] = legacy_bit ? 0 : minor;
}
else
{
context_attribs[i++] = EGL_CONTEXT_CLIENT_VERSION;
if (major == 3)
context_attribs[i++] = 3;
else
context_attribs[i++] = 2;
}
/* Specify the flags */
context_attribs[i++] = EGL_CONTEXT_FLAGS_KHR;