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egl: Support EGL_KHR_no_config_context

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If the extension is supported, we create configless contexts.

This will come in handy real soon now, we use different configs for HDR
and SDR.
This commit is contained in:
Benjamin Otte 2021-10-06 02:41:31 +02:00
parent 3ca84c4357
commit bc7c0d05f8
3 changed files with 9 additions and 1 deletions
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2
gdk/gdkdisplay.c
View File

@ -1698,6 +1698,8 @@ gdk_display_init_egl (GdkDisplay *self,
epoxy_has_egl_extension (priv->egl_display, "EGL_EXT_buffer_age");
self->have_egl_swap_buffers_with_damage =
epoxy_has_egl_extension (priv->egl_display, "EGL_EXT_swap_buffers_with_damage");
self->have_egl_no_config_context =
epoxy_has_egl_extension (priv->egl_display, "EGL_KHR_no_config_context");
GDK_DISPLAY_NOTE (self, OPENGL, {
char *ext = describe_extensions (priv->egl_display);

1
gdk/gdkdisplayprivate.h
View File

@ -108,6 +108,7 @@ struct _GdkDisplay
/* egl info */
guint have_egl_buffer_age : 1;
guint have_egl_swap_buffers_with_damage : 1;
guint have_egl_no_config_context : 1;
};
struct _GdkDisplayClass

7
gdk/gdkglcontext.c
View File

@ -359,7 +359,7 @@ gdk_gl_context_real_realize (GdkGLContext *context,
if (egl_display)
{
EGLConfig egl_config = gdk_display_get_egl_config (display);
EGLConfig egl_config;
GdkGLContext *share = gdk_display_get_gl_context (display);
GdkGLContextPrivate *share_priv = gdk_gl_context_get_instance_private (share);
EGLContext ctx;
@ -377,6 +377,11 @@ gdk_gl_context_real_realize (GdkGLContext *context,
use_es = GDK_DISPLAY_DEBUG_CHECK (display, GL_GLES) ||
(share != NULL && gdk_gl_context_get_use_es (share));
if (display->have_egl_no_config_context)
egl_config = NULL;
else
egl_config = gdk_display_get_egl_config (display);
flags = 0;
if (debug_bit)