d42f1873fc
Instead of flushing the journal whenever the current framebuffer on a context is changed it is now flushed whenever the framebuffer is about to be destroyed instead. To do this it implements a custom unref function which detects when there is going to be exactly one reference on the framebuffer and then flushes its journal. The journal now always has a reference on the framebuffer whenever it is non-empty. That means the unref will only cause a flush if the only thing keeping the framebuffer alive is the entries in the journal. Reviewed-by: Robert Bragg <robert@linux.intel.com>
350 lines
11 KiB
C
350 lines
11 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2011 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cogl-util.h"
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#include "cogl-onscreen-private.h"
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#include "cogl-framebuffer-private.h"
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#include "cogl-onscreen-template-private.h"
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#include "cogl-context-private.h"
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#include "cogl-object-private.h"
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static void _cogl_onscreen_free (CoglOnscreen *onscreen);
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COGL_OBJECT_INTERNAL_DEFINE_WITH_CODE (Onscreen, onscreen,
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_cogl_onscreen_class.virt_unref =
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_cogl_framebuffer_unref);
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static void
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_cogl_onscreen_init_from_template (CoglOnscreen *onscreen,
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CoglOnscreenTemplate *onscreen_template)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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framebuffer->config = onscreen_template->config;
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cogl_object_ref (framebuffer->config.swap_chain);
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}
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/* XXX: While we still have backend in Clutter we need a dummy object
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* to represent the CoglOnscreen framebuffer that the backend
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* creates... */
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CoglOnscreen *
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_cogl_onscreen_new (void)
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{
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CoglOnscreen *onscreen = g_new0 (CoglOnscreen, 1);
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_COGL_GET_CONTEXT (ctx, NULL);
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_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
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ctx,
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COGL_FRAMEBUFFER_TYPE_ONSCREEN,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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0x1eadbeef, /* width */
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0x1eadbeef); /* height */
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/* NB: make sure to pass positive width/height numbers here
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* because otherwise we'll hit input validation assertions!*/
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_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
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COGL_FRAMEBUFFER (onscreen)->allocated = TRUE;
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/* XXX: Note we don't initialize onscreen->winsys in this case. */
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return _cogl_onscreen_object_new (onscreen);
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}
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CoglOnscreen *
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cogl_onscreen_new (CoglContext *ctx, int width, int height)
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{
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CoglOnscreen *onscreen;
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/* FIXME: We are assuming onscreen buffers will always be
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premultiplied so we'll set the premult flag on the bitmap
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format. This will usually be correct because the result of the
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default blending operations for Cogl ends up with premultiplied
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data in the framebuffer. However it is possible for the
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framebuffer to be in whatever format depending on what
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CoglPipeline is used to render to it. Eventually we may want to
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add a way for an application to inform Cogl that the framebuffer
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is not premultiplied in case it is being used for some special
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purpose. */
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onscreen = g_new0 (CoglOnscreen, 1);
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_cogl_framebuffer_init (COGL_FRAMEBUFFER (onscreen),
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ctx,
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COGL_FRAMEBUFFER_TYPE_ONSCREEN,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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width, /* width */
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height); /* height */
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_cogl_onscreen_init_from_template (onscreen, ctx->display->onscreen_template);
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return _cogl_onscreen_object_new (onscreen);
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}
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static void
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_cogl_onscreen_free (CoglOnscreen *onscreen)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
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if (framebuffer->context->window_buffer == onscreen)
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framebuffer->context->window_buffer = NULL;
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winsys->onscreen_deinit (onscreen);
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_COGL_RETURN_IF_FAIL (onscreen->winsys == NULL);
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/* Chain up to parent */
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_cogl_framebuffer_free (framebuffer);
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g_free (onscreen);
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}
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void
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cogl_framebuffer_swap_buffers (CoglFramebuffer *framebuffer)
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{
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const CoglWinsysVtable *winsys;
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_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
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/* FIXME: we shouldn't need to flush *all* journals here! */
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cogl_flush ();
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winsys = _cogl_framebuffer_get_winsys (framebuffer);
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winsys->onscreen_swap_buffers (COGL_ONSCREEN (framebuffer));
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cogl_framebuffer_discard_buffers (framebuffer,
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COGL_BUFFER_BIT_COLOR |
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COGL_BUFFER_BIT_DEPTH |
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COGL_BUFFER_BIT_STENCIL);
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}
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void
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cogl_framebuffer_swap_region (CoglFramebuffer *framebuffer,
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const int *rectangles,
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int n_rectangles)
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{
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const CoglWinsysVtable *winsys;
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_COGL_RETURN_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN);
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/* FIXME: we shouldn't need to flush *all* journals here! */
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cogl_flush ();
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winsys = _cogl_framebuffer_get_winsys (framebuffer);
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/* This should only be called if the winsys advertises
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COGL_WINSYS_FEATURE_SWAP_REGION */
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_COGL_RETURN_IF_FAIL (winsys->onscreen_swap_region != NULL);
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winsys->onscreen_swap_region (COGL_ONSCREEN (framebuffer),
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rectangles,
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n_rectangles);
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cogl_framebuffer_discard_buffers (framebuffer,
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COGL_BUFFER_BIT_COLOR |
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COGL_BUFFER_BIT_DEPTH |
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COGL_BUFFER_BIT_STENCIL);
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}
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#ifdef COGL_HAS_X11_SUPPORT
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void
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cogl_x11_onscreen_set_foreign_window_xid (CoglOnscreen *onscreen,
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guint32 xid,
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CoglOnscreenX11MaskCallback update,
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void *user_data)
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{
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/* We don't wan't applications to get away with being lazy here and not
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* passing an update callback... */
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_COGL_RETURN_IF_FAIL (update);
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onscreen->foreign_xid = xid;
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onscreen->foreign_update_mask_callback = update;
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onscreen->foreign_update_mask_data = user_data;
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}
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guint32
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cogl_x11_onscreen_get_window_xid (CoglOnscreen *onscreen)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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if (onscreen->foreign_xid)
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return onscreen->foreign_xid;
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else
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{
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const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
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/* This should only be called for x11 onscreens */
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_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_x11_get_window_xid != NULL, 0);
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return winsys->onscreen_x11_get_window_xid (onscreen);
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}
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}
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guint32
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cogl_x11_onscreen_get_visual_xid (CoglOnscreen *onscreen)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
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XVisualInfo *visinfo;
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guint32 id;
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/* This should only be called for xlib based onscreens */
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_COGL_RETURN_VAL_IF_FAIL (winsys->xlib_get_visual_info != NULL, 0);
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visinfo = winsys->xlib_get_visual_info ();
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id = (guint32)visinfo->visualid;
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XFree (visinfo);
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return id;
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}
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#endif /* COGL_HAS_X11_SUPPORT */
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#ifdef COGL_HAS_WIN32_SUPPORT
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void
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cogl_win32_onscreen_set_foreign_window (CoglOnscreen *onscreen,
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HWND hwnd)
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{
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onscreen->foreign_hwnd = hwnd;
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}
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HWND
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cogl_win32_onscreen_get_window (CoglOnscreen *onscreen)
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{
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if (onscreen->foreign_hwnd)
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return onscreen->foreign_hwnd;
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else
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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const CoglWinsysVtable *winsys =
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_cogl_framebuffer_get_winsys (framebuffer);
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/* This should only be called for win32 onscreens */
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_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_win32_get_window != NULL, 0);
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return winsys->onscreen_win32_get_window (onscreen);
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}
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}
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#endif /* COGL_HAS_WIN32_SUPPORT */
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unsigned int
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cogl_framebuffer_add_swap_buffers_callback (CoglFramebuffer *framebuffer,
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CoglSwapBuffersNotify callback,
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void *user_data)
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{
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CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
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const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
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/* Should this just be cogl_onscreen API instead? */
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_COGL_RETURN_VAL_IF_FAIL (framebuffer->type == COGL_FRAMEBUFFER_TYPE_ONSCREEN, 0);
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/* This should only be called when
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COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT is advertised */
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_COGL_RETURN_VAL_IF_FAIL (winsys->onscreen_add_swap_buffers_callback != NULL, 0);
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return winsys->onscreen_add_swap_buffers_callback (onscreen,
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callback,
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user_data);
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}
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void
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cogl_framebuffer_remove_swap_buffers_callback (CoglFramebuffer *framebuffer,
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unsigned int id)
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{
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CoglOnscreen *onscreen = COGL_ONSCREEN (framebuffer);
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const CoglWinsysVtable *winsys = _cogl_framebuffer_get_winsys (framebuffer);
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/* This should only be called when
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COGL_WINSYS_FEATURE_SWAP_BUFFERS_EVENT is advertised */
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_COGL_RETURN_IF_FAIL (winsys->onscreen_remove_swap_buffers_callback != NULL);
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winsys->onscreen_remove_swap_buffers_callback (onscreen, id);
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}
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void
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cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
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gboolean throttled)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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framebuffer->config.swap_throttled = throttled;
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if (framebuffer->allocated)
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{
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const CoglWinsysVtable *winsys =
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_cogl_framebuffer_get_winsys (framebuffer);
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winsys->onscreen_update_swap_throttled (onscreen);
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}
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}
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void
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cogl_onscreen_show (CoglOnscreen *onscreen)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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const CoglWinsysVtable *winsys;
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if (!framebuffer->allocated)
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{
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if (!cogl_framebuffer_allocate (framebuffer, NULL))
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return;
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}
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winsys = _cogl_framebuffer_get_winsys (framebuffer);
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if (winsys->onscreen_set_visibility)
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winsys->onscreen_set_visibility (onscreen, TRUE);
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}
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void
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cogl_onscreen_hide (CoglOnscreen *onscreen)
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{
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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if (framebuffer->allocated)
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{
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const CoglWinsysVtable *winsys =
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_cogl_framebuffer_get_winsys (framebuffer);
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if (winsys->onscreen_set_visibility)
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winsys->onscreen_set_visibility (onscreen, FALSE);
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}
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}
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void
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_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
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int width, int height)
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{
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if (framebuffer->width == width && framebuffer->height == height)
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return;
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framebuffer->width = width;
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framebuffer->height = height;
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/* The framebuffer geometry can affect the GL viewport so if the
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* framebuffer being updated is the current framebuffer we mark the
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* viewport state as changed so it will be updated the next time
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* _cogl_framebuffer_flush_state() is called. */
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if (framebuffer->context->current_draw_buffer == framebuffer)
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framebuffer->context->current_draw_buffer_changes |=
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COGL_FRAMEBUFFER_STATE_VIEWPORT;
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}
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