mutter/cogl/cogl-display.c
Neil Roberts 185630085c Add -Wmissing-declarations to maintainer flags and fix problems
This option to GCC makes it give a warning whenever a global function
is defined without a declaration. This should catch cases were we've
defined a function but forgot to put it in a header. In that case it
is either only used within one file so we should make it static or we
should declare it in a header.

The following changes where made to fix problems:

• Some functions were made static

• cogl-path.h (the one containing the 1.0 API) was split into two
  files, one defining the functions and one defining the enums so that
  cogl-path.c can include the enum and function declarations from the
  2.0 API as well as the function declarations from the 1.0 API.

• cogl2-clip-state has been removed. This only had one experimental
  function called cogl_clip_push_from_path but as this is unstable we
  might as well remove it favour of the equivalent cogl_framebuffer_*
  API.

• The GLX, SDL and WGL winsys's now have a private header to define
  their get_vtable function instead of directly declaring in the C
  file where it is called.

• All places that were calling COGL_OBJECT_DEFINE need to have the
  cogl_is_whatever function declared so these have been added either
  as a public function or in a private header.

• Some files that were not including the header containing their
  function declarations have been fixed to do so.

• Any unused error quark functions have been removed. If we later want
  them we should add them back one by one and add a declaration for
  them in a header.

• _cogl_is_framebuffer has been renamed to cogl_is_framebuffer and
  made a public function with a declaration in cogl-framebuffer.h

• Similarly for CoglOnscreen.

• cogl_vdraw_indexed_attributes is called
  cogl_framebuffer_vdraw_indexed_attributes in the header. The
  definition has been changed to match the header.

• cogl_index_buffer_allocate has been removed. This had no declaration
  and I'm not sure what it's supposed to do.

• CoglJournal has been changed to use the internal CoglObject macro so
  that it won't define an exported cogl_is_journal symbol.

• The _cogl_blah_pointer_from_handle functions have been removed.
  CoglHandle isn't used much anymore anyway and in the few places
  where it is used I think it's safe to just use the implicit cast
  from void* to the right type.

• The test-utils.h header for the conformance tests explicitly
  disables the -Wmissing-declaration option using a pragma because all
  of the tests declare their main function without a header. Any
  mistakes relating to missing declarations aren't really important
  for the tests.

• cogl_quaternion_init_from_quaternion and init_from_matrix have been
  given declarations in cogl-quaternion.h

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-03-06 18:45:44 +00:00

162 lines
3.8 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "cogl-private.h"
#include "cogl-object.h"
#include "cogl-internal.h"
#include "cogl-display-private.h"
#include "cogl-renderer-private.h"
#include "cogl-winsys-private.h"
static void _cogl_display_free (CoglDisplay *display);
COGL_OBJECT_DEFINE (Display, display);
static const CoglWinsysVtable *
_cogl_display_get_winsys (CoglDisplay *display)
{
return display->renderer->winsys_vtable;
}
static void
_cogl_display_free (CoglDisplay *display)
{
const CoglWinsysVtable *winsys;
if (display->setup)
{
winsys = _cogl_display_get_winsys (display);
winsys->display_destroy (display);
display->setup = FALSE;
}
if (display->renderer)
{
cogl_object_unref (display->renderer);
display->renderer = NULL;
}
if (display->onscreen_template)
{
cogl_object_unref (display->onscreen_template);
display->onscreen_template = NULL;
}
g_slice_free (CoglDisplay, display);
}
CoglDisplay *
cogl_display_new (CoglRenderer *renderer,
CoglOnscreenTemplate *onscreen_template)
{
CoglDisplay *display = g_slice_new0 (CoglDisplay);
GError *error = NULL;
_cogl_init ();
display->renderer = renderer;
if (renderer)
cogl_object_ref (renderer);
else
display->renderer = cogl_renderer_new ();
if (!cogl_renderer_connect (display->renderer, &error))
{
g_warning ("Failed to connect renderer: %s\n", error->message);
g_error_free (error);
g_object_unref (display->renderer);
g_slice_free (CoglDisplay, display);
return NULL;
}
display->onscreen_template = onscreen_template;
if (onscreen_template)
cogl_object_ref (onscreen_template);
else
display->onscreen_template = cogl_onscreen_template_new (NULL);
display->setup = FALSE;
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
display->gdl_plane = GDL_PLANE_ID_UPP_C;
#endif
return _cogl_display_object_new (display);
}
CoglRenderer *
cogl_display_get_renderer (CoglDisplay *display)
{
return display->renderer;
}
gboolean
cogl_display_setup (CoglDisplay *display,
GError **error)
{
const CoglWinsysVtable *winsys;
if (display->setup)
return TRUE;
winsys = _cogl_display_get_winsys (display);
if (!winsys->display_setup (display, error))
return FALSE;
display->setup = TRUE;
return TRUE;
}
#ifdef COGL_HAS_EGL_PLATFORM_GDL_SUPPORT
void
cogl_gdl_display_set_plane (CoglDisplay *display,
gdl_plane_id_t plane)
{
_COGL_RETURN_IF_FAIL (display->setup == FALSE);
display->gdl_plane = plane;
}
#endif
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
void
cogl_wayland_display_set_compositor_display (CoglDisplay *display,
struct wl_display *wayland_display)
{
_COGL_RETURN_IF_FAIL (display->setup == FALSE);
display->wayland_compositor_display = wayland_display;
}
#endif