mutter/cogl/cogl-onscreen.c

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/*
* 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/>.
*
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-util.h"
#include "cogl-onscreen-private.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-template-private.h"
#include "cogl-context-private.h"
#include "cogl-object-private.h"
#include "cogl1-context.h"
static void _cogl_onscreen_free (CoglOnscreen *onscreen);
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 13:21:28 -05:00
COGL_OBJECT_DEFINE_WITH_CODE (Onscreen, onscreen,
_cogl_onscreen_class.virt_unref =
_cogl_framebuffer_unref);
static void
_cogl_onscreen_init_from_template (CoglOnscreen *onscreen,
CoglOnscreenTemplate *onscreen_template)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
COGL_TAILQ_INIT (&onscreen->swap_callbacks);
framebuffer->config = onscreen_template->config;
cogl_object_ref (framebuffer->config.swap_chain);
}
/* XXX: While we still have backend in Clutter we need a dummy object
* to represent the CoglOnscreen framebuffer that the backend
* creates... */
CoglOnscreen *
_cogl_onscreen_new (void)
{
CoglOnscreen *onscreen = g_new0 (CoglOnscreen, 1);
_COGL_GET_CONTEXT (ctx, NULL);
_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
ctx,
COGL_FRAMEBUFFER_TYPE_ONSCREEN,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
0x1eadbeef, /* width */
0x1eadbeef); /* height */
/* NB: make sure to pass positive width/height numbers here
* because otherwise we'll hit input validation assertions!*/
_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
COGL_FRAMEBUFFER (onscreen)->allocated = TRUE;
/* XXX: Note we don't initialize onscreen->winsys in this case. */
return _cogl_onscreen_object_new (onscreen);
}
CoglOnscreen *
cogl_onscreen_new (CoglContext *ctx, int width, int height)
{
CoglOnscreen *onscreen;
/* FIXME: We are assuming onscreen buffers will always be
premultiplied so we'll set the premult flag on the bitmap
format. This will usually be correct because the result of the
default blending operations for Cogl ends up with premultiplied
data in the framebuffer. However it is possible for the
framebuffer to be in whatever format depending on what
CoglPipeline is used to render to it. Eventually we may want to
add a way for an application to inform Cogl that the framebuffer
is not premultiplied in case it is being used for some special
purpose. */
onscreen = g_new0 (CoglOnscreen, 1);
_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
ctx,
COGL_FRAMEBUFFER_TYPE_ONSCREEN,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
width, /* width */
height); /* height */
_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
return _cogl_onscreen_object_new (onscreen);
}
static void
_cogl_onscreen_free (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
if (framebuffer->context->window_buffer == onscreen)
framebuffer->context->window_buffer = NULL;
winsys->onscreen_deinit (onscreen);
_COGL_RETURN_IF_FAIL (onscreen->winsys == NULL);
/* Chain up to parent */
_cogl_framebuffer_free (framebuffer);
g_free (onscreen);
}
void
cogl_onscreen_swap_buffers (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
/* FIXME: we shouldn't need to flush *all* journals here! */
cogl_flush ();
winsys = _cogl_framebuffer_get_winsys (framebuffer);
winsys->onscreen_swap_buffers (COGL_ONSCREEN (framebuffer));
cogl_framebuffer_discard_buffers (framebuffer,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL);
}
void
cogl_onscreen_swap_region (CoglOnscreen *onscreen,
const int *rectangles,
int n_rectangles)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
/* FIXME: we shouldn't need to flush *all* journals here! */
cogl_flush ();
winsys = _cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called if the winsys advertises
COGL_WINSYS_FEATURE_SWAP_REGION */
_COGL_RETURN_IF_FAIL (winsys->onscreen_swap_region != NULL);
winsys->onscreen_swap_region (COGL_ONSCREEN (framebuffer),
rectangles,
n_rectangles);
cogl_framebuffer_discard_buffers (framebuffer,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL);
}
#ifdef COGL_HAS_X11_SUPPORT
void
cogl_x11_onscreen_set_foreign_window_xid (CoglOnscreen *onscreen,
guint32 xid,
CoglOnscreenX11MaskCallback update,
void *user_data)
{
/* We don't wan't applications to get away with being lazy here and not
* passing an update callback... */
_COGL_RETURN_IF_FAIL (update);
onscreen->foreign_xid = xid;
onscreen->foreign_update_mask_callback = update;
onscreen->foreign_update_mask_data = user_data;
}
guint32
cogl_x11_onscreen_get_window_xid (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
if (onscreen->foreign_xid)
return onscreen->foreign_xid;
else
{
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called for x11 onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_x11_get_window_xid != NULL, 0);
return winsys->onscreen_x11_get_window_xid (onscreen);
}
}
guint32
cogl_x11_onscreen_get_visual_xid (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
XVisualInfo *visinfo;
guint32 id;
/* This should only be called for xlib based onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->xlib_get_visual_info != NULL, 0);
visinfo = winsys->xlib_get_visual_info ();
id = (guint32)visinfo->visualid;
XFree (visinfo);
return id;
}
#endif /* COGL_HAS_X11_SUPPORT */
#ifdef COGL_HAS_WIN32_SUPPORT
void
cogl_win32_onscreen_set_foreign_window (CoglOnscreen *onscreen,
HWND hwnd)
{
onscreen->foreign_hwnd = hwnd;
}
HWND
cogl_win32_onscreen_get_window (CoglOnscreen *onscreen)
{
if (onscreen->foreign_hwnd)
return onscreen->foreign_hwnd;
else
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
/* This should only be called for win32 onscreens */
_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_win32_get_window != NULL, 0);
return winsys->onscreen_win32_get_window (onscreen);
}
}
#endif /* COGL_HAS_WIN32_SUPPORT */
unsigned int
cogl_onscreen_add_swap_buffers_callback (CoglOnscreen *onscreen,
CoglSwapBuffersNotify callback,
void *user_data)
{
CoglSwapBuffersNotifyEntry *entry = g_slice_new0 (CoglSwapBuffersNotifyEntry);
static int next_swap_buffers_callback_id = 0;
entry->callback = callback;
entry->user_data = user_data;
entry->id = next_swap_buffers_callback_id++;
COGL_TAILQ_INSERT_TAIL (&onscreen->swap_callbacks, entry, list_node);
return entry->id;
}
void
cogl_onscreen_remove_swap_buffers_callback (CoglOnscreen *onscreen,
unsigned int id)
{
CoglSwapBuffersNotifyEntry *entry;
COGL_TAILQ_FOREACH (entry, &onscreen->swap_callbacks, list_node)
{
if (entry->id == id)
{
COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, entry, list_node);
g_slice_free (CoglSwapBuffersNotifyEntry, entry);
break;
}
}
}
void
cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
gboolean throttled)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
framebuffer->config.swap_throttled = throttled;
if (framebuffer->allocated)
{
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
winsys->onscreen_update_swap_throttled (onscreen);
}
}
void
cogl_onscreen_show (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
const CoglWinsysVtable *winsys;
if (!framebuffer->allocated)
{
if (!cogl_framebuffer_allocate (framebuffer, NULL))
return;
}
winsys = _cogl_framebuffer_get_winsys (framebuffer);
if (winsys->onscreen_set_visibility)
winsys->onscreen_set_visibility (onscreen, TRUE);
}
void
cogl_onscreen_hide (CoglOnscreen *onscreen)
{
CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
if (framebuffer->allocated)
{
const CoglWinsysVtable *winsys =
_cogl_framebuffer_get_winsys (framebuffer);
if (winsys->onscreen_set_visibility)
winsys->onscreen_set_visibility (onscreen, FALSE);
}
}
void
_cogl_onscreen_notify_swap_buffers (CoglOnscreen *onscreen)
{
CoglSwapBuffersNotifyEntry *entry, *tmp;
COGL_TAILQ_FOREACH_SAFE (entry,
&onscreen->swap_callbacks,
list_node,
tmp)
entry->callback (COGL_FRAMEBUFFER (onscreen), entry->user_data);
}
void
_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
int width, int height)
{
if (framebuffer->width == width && framebuffer->height == height)
return;
framebuffer->width = width;
framebuffer->height = height;
/* The framebuffer geometry can affect the GL viewport so if the
* framebuffer being updated is the current framebuffer we mark the
* viewport state as changed so it will be updated the next time
* _cogl_framebuffer_flush_state() is called. */
if (framebuffer->context->current_draw_buffer == framebuffer)
framebuffer->context->current_draw_buffer_changes |=
COGL_FRAMEBUFFER_STATE_VIEWPORT;
}