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982ee75319
There were two problems with the stencil viewport clip workaround introduced in afc5daab8: • When the viewport is changed the current clip state is not marked as dirty. That means that when the framebuffer state is next flushed it would continue to use the stencil from the previous viewport. • When the viewport is automatically updated due to the window being resized the viewport age was not incremented so the clip state wouldn't be flushed. I noticed the bugs by running cogl-sdl2-hello. This patch makes it so that the clip state is dirtied in cogl_framebuffer_set_viewport if the workaround is enabled. The automatic viewport changing code now just calls cogl_framebuffer_set_viewport instead of directly prodding the viewport values. This has the side-effect that it will also cause the journal to be flushed. This seems like the right thing to do anyway and presumably there would have been a bug before where it wouldn't have flushed the journal, although presumably this is extremely unlikely because it would have to have done a resize in the middle of painting the scene. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 0dca99ddf728c8d4e3003861a03e8a2beccf282d)
455 lines
14 KiB
C
455 lines
14 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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#include "cogl1-context.h"
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static void _cogl_onscreen_free (CoglOnscreen *onscreen);
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COGL_OBJECT_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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COGL_TAILQ_INIT (&onscreen->swap_callbacks);
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COGL_TAILQ_INIT (&onscreen->resize_callbacks);
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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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CoglResizeNotifyEntry *resize_entry;
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CoglSwapBuffersNotifyEntry *swap_entry;
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while ((resize_entry = COGL_TAILQ_FIRST (&onscreen->resize_callbacks)))
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{
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COGL_TAILQ_REMOVE (&onscreen->resize_callbacks, resize_entry, list_node);
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g_slice_free (CoglResizeNotifyEntry, resize_entry);
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}
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while ((swap_entry = COGL_TAILQ_FIRST (&onscreen->swap_callbacks)))
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{
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COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, swap_entry, list_node);
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g_slice_free (CoglSwapBuffersNotifyEntry, swap_entry);
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}
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if (framebuffer->context->window_buffer == COGL_FRAMEBUFFER (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_onscreen_swap_buffers (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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_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_onscreen_swap_region (CoglOnscreen *onscreen,
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const int *rectangles,
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int n_rectangles)
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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_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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uint32_t 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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uint32_t
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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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uint32_t
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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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uint32_t 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 = (uint32_t)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_onscreen_add_swap_buffers_callback (CoglOnscreen *onscreen,
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CoglSwapBuffersNotify callback,
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void *user_data)
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{
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CoglSwapBuffersNotifyEntry *entry = g_slice_new0 (CoglSwapBuffersNotifyEntry);
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static int next_swap_buffers_callback_id = 0;
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entry->callback = callback;
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entry->user_data = user_data;
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entry->id = next_swap_buffers_callback_id++;
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COGL_TAILQ_INSERT_TAIL (&onscreen->swap_callbacks, entry, list_node);
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return entry->id;
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}
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void
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cogl_onscreen_remove_swap_buffers_callback (CoglOnscreen *onscreen,
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unsigned int id)
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{
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CoglSwapBuffersNotifyEntry *entry;
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COGL_TAILQ_FOREACH (entry, &onscreen->swap_callbacks, list_node)
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{
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if (entry->id == id)
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{
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COGL_TAILQ_REMOVE (&onscreen->swap_callbacks, entry, list_node);
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g_slice_free (CoglSwapBuffersNotifyEntry, entry);
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break;
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}
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}
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}
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void
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cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
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CoglBool 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_onscreen_notify_swap_buffers (CoglOnscreen *onscreen)
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{
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CoglSwapBuffersNotifyEntry *entry, *tmp;
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COGL_TAILQ_FOREACH_SAFE (entry,
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&onscreen->swap_callbacks,
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list_node,
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tmp)
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entry->callback (COGL_FRAMEBUFFER (onscreen), entry->user_data);
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}
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void
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_cogl_onscreen_notify_resize (CoglOnscreen *onscreen)
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{
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CoglResizeNotifyEntry *entry, *tmp;
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CoglFramebuffer *framebuffer = COGL_FRAMEBUFFER (onscreen);
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COGL_TAILQ_FOREACH_SAFE (entry,
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&onscreen->resize_callbacks,
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list_node,
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tmp)
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entry->callback (onscreen,
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framebuffer->width,
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framebuffer->height,
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entry->user_data);
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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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cogl_framebuffer_set_viewport (framebuffer, 0, 0, width, height);
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}
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void
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cogl_onscreen_set_resizable (CoglOnscreen *onscreen,
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CoglBool resizable)
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{
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CoglFramebuffer *framebuffer;
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const CoglWinsysVtable *winsys;
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if (onscreen->resizable == resizable)
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return;
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onscreen->resizable = resizable;
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framebuffer = COGL_FRAMEBUFFER (onscreen);
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if (framebuffer->allocated)
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{
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winsys = _cogl_framebuffer_get_winsys (COGL_FRAMEBUFFER (onscreen));
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if (winsys->onscreen_set_resizable)
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winsys->onscreen_set_resizable (onscreen, resizable);
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}
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}
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CoglBool
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cogl_onscreen_get_resizable (CoglOnscreen *onscreen)
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{
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return onscreen->resizable;
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}
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unsigned int
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cogl_onscreen_add_resize_handler (CoglOnscreen *onscreen,
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CoglOnscreenResizeCallback callback,
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void *user_data)
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{
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CoglResizeNotifyEntry *entry = g_slice_new (CoglResizeNotifyEntry);
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static int next_resize_callback_id = 0;
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entry->callback = callback;
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entry->user_data = user_data;
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entry->id = next_resize_callback_id++;
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COGL_TAILQ_INSERT_TAIL (&onscreen->resize_callbacks, entry, list_node);
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return entry->id;
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}
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void
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cogl_onscreen_remove_resize_handler (CoglOnscreen *onscreen,
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unsigned int id)
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{
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CoglResizeNotifyEntry *entry;
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COGL_TAILQ_FOREACH (entry, &onscreen->resize_callbacks, list_node)
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{
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if (entry->id == id)
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{
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COGL_TAILQ_REMOVE (&onscreen->resize_callbacks, entry, list_node);
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g_slice_free (CoglResizeNotifyEntry, entry);
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break;
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}
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}
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}
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