mirror of https://github.com/BOINC/boinc.git
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC 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.
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// See the GNU 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 License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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#ifndef _WIN32
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#include "config.h"
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#endif
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#include "graphics_data.h"
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void GRAPHICS_BUFFER::clear() {
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}
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void GRAPHICS_DOUBLE_BUFFER::init(GRAPHICS_BUFFER* _b1, GRAPHICS_BUFFER* _b2) {
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b1 = _b1;
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b2 = _b2;
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}
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GRAPHICS_BUFFER* GRAPHICS_DOUBLE_BUFFER::get_buffer(int state) {
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if (b1->state == state) return b1;
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if (b2->state == state) return b2;
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return 0;
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}
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GRAPHICS_BUFFER* GRAPHICS_DOUBLE_BUFFER::get_render_buffer() {
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GRAPHICS_BUFFER* b, *other;
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b = get_buffer(GB_STATE_RENDERING);
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if (!b) b = get_buffer(GB_STATE_RENDERED);
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if (!b) b = get_buffer(GB_STATE_GENERATED);
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if (b) {
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if (b->state == GB_STATE_RENDERED) {
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other = get_buffer(GB_STATE_GENERATED);
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if (other) {
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b->clear();
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b->state = GB_STATE_IDLE;
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b = other;
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b->state = GB_STATE_RENDERING;
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}
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} else {
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b->state = GB_STATE_RENDERING;
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}
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}
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return b;
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}
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void GRAPHICS_DOUBLE_BUFFER::render_done(GRAPHICS_BUFFER* b) {
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b->state = GB_STATE_RENDERED;
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}
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GRAPHICS_BUFFER* GRAPHICS_DOUBLE_BUFFER::get_generate_buffer(bool first) {
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GRAPHICS_BUFFER* b;
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b = get_buffer(GB_STATE_GENERATING);
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if (!b && first) {
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b = get_buffer(GB_STATE_IDLE);
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if (b) {
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b->state = GB_STATE_GENERATING;
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}
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}
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return b;
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}
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void GRAPHICS_DOUBLE_BUFFER::generate_done(GRAPHICS_BUFFER* b) {
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b->state = GB_STATE_GENERATED;
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}
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const char *BOINC_RCSID_ebfbd0f929 = "$Id$";
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