042dc7c8cd
Previously the cost of _cogl_framebuffer_state_flush() would always scale by the total amount of state tracked by CoglFramebuffer even in cases where we knew up-front that we only wanted to flush a subset of the state or in cases where we requested to flush the same framebuffer multiple times with no changes being made to the framebuffer. We now track a set of state changed flags with each framebuffer and track the current read/draw buffers as part of the CoglContext so that we can quickly bail out when asked to flush the same framebuffer multiple times with no changes. _cogl_framebuffer_flush_state() now takes a mask of the state that we want to flush and the implementation has been redesigned so that the cost of checking what needs to be flushed and flushing those changes now scales by how much state we actually plan to update. Reviewed-by: Neil Roberts <neil@linux.intel.com>
351 lines
11 KiB
C
351 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 (Onscreen, onscreen);
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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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/* FIXME: This should be configurable via the template too */
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onscreen->swap_throttled = TRUE;
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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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onscreen->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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