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glarea: Add accessors for the required GL version

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Specifying the version of OpenGL is enough of a common operation that it
should not require overriding the creation of the GdkGLContext.
This commit is contained in:
Emmanuele Bassi 2015-02-12 13:20:24 +00:00
parent ec112a772b
commit c372f95a41
2 changed files with 72 additions and 10 deletions
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74
gtk/gtkglarea.c
View File

@ -105,6 +105,8 @@ typedef struct {
gboolean have_buffers;
int required_gl_version;
guint frame_buffer;
guint render_buffer;
guint texture;
@ -166,31 +168,28 @@ gtk_gl_area_set_property (GObject *gobject,
const GValue *value,
GParamSpec *pspec)
{
GtkGLArea *self = GTK_GL_AREA (gobject);
switch (prop_id)
{
case PROP_AUTO_RENDER:
gtk_gl_area_set_auto_render (GTK_GL_AREA(gobject),
g_value_get_boolean (value));
gtk_gl_area_set_auto_render (self, g_value_get_boolean (value));
break;
case PROP_HAS_ALPHA:
gtk_gl_area_set_has_alpha (GTK_GL_AREA(gobject),
g_value_get_boolean (value));
gtk_gl_area_set_has_alpha (self, g_value_get_boolean (value));
break;
case PROP_HAS_DEPTH_BUFFER:
gtk_gl_area_set_has_depth_buffer (GTK_GL_AREA(gobject),
g_value_get_boolean (value));
gtk_gl_area_set_has_depth_buffer (self, g_value_get_boolean (value));
break;
case PROP_HAS_STENCIL_BUFFER:
gtk_gl_area_set_has_stencil_buffer (GTK_GL_AREA(gobject),
g_value_get_boolean (value));
gtk_gl_area_set_has_stencil_buffer (self, g_value_get_boolean (value));
break;
case PROP_PROFILE:
gtk_gl_area_set_profile (GTK_GL_AREA(gobject),
g_value_get_enum (value));
gtk_gl_area_set_profile (self, g_value_get_enum (value));
break;
default:
@ -310,6 +309,9 @@ gtk_gl_area_real_create_context (GtkGLArea *area)
return NULL;
}
gdk_gl_context_set_required_version (context,
priv->required_gl_version / 10,
priv->required_gl_version % 10);
gdk_gl_context_set_profile (context, priv->profile);
gdk_gl_context_realize (context, &error);
@ -929,6 +931,7 @@ gtk_gl_area_init (GtkGLArea *area)
priv->profile = GDK_GL_PROFILE_DEFAULT;
priv->auto_render = TRUE;
priv->needs_render = TRUE;
priv->required_gl_version = 0;
}
/**
@ -990,6 +993,56 @@ gtk_gl_area_get_error (GtkGLArea *area)
return priv->error;
}
/**
* gtk_gl_area_set_required_version:
* @area: a #GtkGLArea
*
* Sets the required version of OpenGL to be used when creating the context
* for the widget.
*
* This function must be called before the area has been realized.
*
* Since: 3.16
*/
void
gtk_gl_area_set_required_version (GtkGLArea *area,
int major,
int minor)
{
GtkGLAreaPrivate *priv = gtk_gl_area_get_instance_private (area);
g_return_if_fail (GTK_IS_GL_AREA (area));
g_return_if_fail (!gtk_widget_get_realized (GTK_WIDGET (area)));
priv->required_gl_version = major * 10 + minor;
}
/**
* gtk_gl_area_get_required_version:
* @area: a #GtkGLArea
* @major: (out): return location for the required major version
* @minor: (out): return location for the required minor version
*
* Retrieves the required version of OpenGL set
* using gtk_gl_area_set_required_version().
*
* Since: 3.16
*/
void
gtk_gl_area_get_required_version (GtkGLArea *area,
int *major,
int *minor)
{
GtkGLAreaPrivate *priv = gtk_gl_area_get_instance_private (area);
g_return_if_fail (GTK_IS_GL_AREA (area));
if (major != NULL)
*major = priv->required_gl_version / 10;
if (minor != NULL)
*minor = priv->required_gl_version % 10;
}
/**
* gtk_gl_area_get_profile:
* @area: a #GtkGLArea
@ -1028,6 +1081,7 @@ gtk_gl_area_set_profile (GtkGLArea *area,
GtkGLAreaPrivate *priv = gtk_gl_area_get_instance_private (area);
g_return_if_fail (GTK_IS_GL_AREA (area));
g_return_if_fail (!gtk_widget_get_realized (GTK_WIDGET (area)));
if (priv->profile != profile)
{

8
gtk/gtkglarea.h
View File

@ -83,6 +83,14 @@ GType gtk_gl_area_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_3_16
GtkWidget * gtk_gl_area_new (void);
GDK_AVAILABLE_IN_3_16
void gtk_gl_area_set_required_version (GtkGLArea *area,
int major,
int minor);
GDK_AVAILABLE_IN_3_16
void gtk_gl_area_get_required_version (GtkGLArea *area,
int *major,
int *minor);
GDK_AVAILABLE_IN_3_16
GdkGLProfile gtk_gl_area_get_profile (GtkGLArea *area);
GDK_AVAILABLE_IN_3_16