mutter/cogl/winsys/cogl-winsys-stub.c
Robert Bragg 54735dec84 Switch use of primitive glib types to c99 equivalents
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.

Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.

Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.

So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.

Instead of gsize we now use size_t

For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-08-06 14:27:39 +01:00

188 lines
4.7 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-renderer-private.h"
#include "cogl-display-private.h"
#include "cogl-context-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-private.h"
#include "cogl-winsys-stub-private.h"
#include <string.h>
static int _cogl_winsys_stub_dummy_ptr;
/* This provides a NOP winsys. This can be useful for debugging or for
* integrating with toolkits that already have window system
* integration code.
*/
static CoglFuncPtr
_cogl_winsys_renderer_get_proc_address (CoglRenderer *renderer,
const char *name)
{
static GModule *module = NULL;
/* this should find the right function if the program is linked against a
* library providing it */
if (G_UNLIKELY (module == NULL))
module = g_module_open (NULL, 0);
if (module)
{
void *symbol;
if (g_module_symbol (module, name, &symbol))
return symbol;
}
return NULL;
}
static void
_cogl_winsys_renderer_disconnect (CoglRenderer *renderer)
{
renderer->winsys = NULL;
}
static CoglBool
_cogl_winsys_renderer_connect (CoglRenderer *renderer,
GError **error)
{
renderer->winsys = &_cogl_winsys_stub_dummy_ptr;
return TRUE;
}
static void
_cogl_winsys_display_destroy (CoglDisplay *display)
{
display->winsys = NULL;
}
static CoglBool
_cogl_winsys_display_setup (CoglDisplay *display,
GError **error)
{
display->winsys = &_cogl_winsys_stub_dummy_ptr;
return TRUE;
}
static CoglBool
_cogl_winsys_context_init (CoglContext *context, GError **error)
{
context->winsys = &_cogl_winsys_stub_dummy_ptr;
if (!_cogl_context_update_features (context, error))
return FALSE;
memset (context->winsys_features, 0, sizeof (context->winsys_features));
return TRUE;
}
static void
_cogl_winsys_context_deinit (CoglContext *context)
{
context->winsys = NULL;
}
static CoglBool
_cogl_winsys_onscreen_init (CoglOnscreen *onscreen,
GError **error)
{
return TRUE;
}
static void
_cogl_winsys_onscreen_deinit (CoglOnscreen *onscreen)
{
}
static void
_cogl_winsys_onscreen_bind (CoglOnscreen *onscreen)
{
}
static void
_cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
}
static void
_cogl_winsys_onscreen_update_swap_throttled (CoglOnscreen *onscreen)
{
}
static void
_cogl_winsys_onscreen_set_visibility (CoglOnscreen *onscreen,
CoglBool visibility)
{
}
const CoglWinsysVtable *
_cogl_winsys_stub_get_vtable (void)
{
static CoglBool vtable_inited = FALSE;
static CoglWinsysVtable vtable;
/* It would be nice if we could use C99 struct initializers here
like the GLX backend does. However this code is more likely to be
compiled using Visual Studio which (still!) doesn't support them
so we initialize it in code instead */
if (!vtable_inited)
{
memset (&vtable, 0, sizeof (vtable));
vtable.id = COGL_WINSYS_ID_STUB;
vtable.name = "STUB";
vtable.renderer_get_proc_address = _cogl_winsys_renderer_get_proc_address;
vtable.renderer_connect = _cogl_winsys_renderer_connect;
vtable.renderer_disconnect = _cogl_winsys_renderer_disconnect;
vtable.display_setup = _cogl_winsys_display_setup;
vtable.display_destroy = _cogl_winsys_display_destroy;
vtable.context_init = _cogl_winsys_context_init;
vtable.context_deinit = _cogl_winsys_context_deinit;
vtable.onscreen_init = _cogl_winsys_onscreen_init;
vtable.onscreen_deinit = _cogl_winsys_onscreen_deinit;
vtable.onscreen_bind = _cogl_winsys_onscreen_bind;
vtable.onscreen_swap_buffers = _cogl_winsys_onscreen_swap_buffers;
vtable.onscreen_update_swap_throttled =
_cogl_winsys_onscreen_update_swap_throttled;
vtable.onscreen_set_visibility = _cogl_winsys_onscreen_set_visibility;
vtable_inited = TRUE;
}
return &vtable;
}