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107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2006 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "graphics/paletteman.h"
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#include "common/system.h"
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#include "common/stack.h"
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DECLARE_SINGLETON(Graphics::PaletteManager);
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namespace Graphics {
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static bool g_initialized = false;
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PaletteManager::PaletteManager() {
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if (!g_initialized) {
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g_initialized = true;
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_cursorPaletteStack.clear();
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}
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}
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void PaletteManager::pushCursorPalette(const byte *colors, uint start, uint num) {
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if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
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return;
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Palette *pal = new Palette(colors, start, num);
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_cursorPaletteStack.push(pal);
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if (num)
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g_system->setCursorPalette(colors, start, num);
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else
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g_system->disableCursorPalette(true);
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}
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void PaletteManager::popCursorPalette() {
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if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
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return;
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if (_cursorPaletteStack.empty())
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return;
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Palette *pal = _cursorPaletteStack.pop();
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delete pal;
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if (_cursorPaletteStack.empty()) {
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g_system->disableCursorPalette(true);
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return;
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}
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pal = _cursorPaletteStack.top();
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if (pal->_num)
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g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
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else
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g_system->disableCursorPalette(true);
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}
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void PaletteManager::replaceCursorPalette(const byte *colors, uint start, uint num) {
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if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
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return;
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if (_cursorPaletteStack.empty()) {
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pushCursorPalette(colors, start, num);
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return;
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}
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Palette *pal = _cursorPaletteStack.top();
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uint size = 4 * num;
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if (pal->_size < size) {
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// Could not re-use the old buffer. Create a new one.
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delete[] pal->_data;
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pal->_data = new byte[size];
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pal->_size = size;
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}
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pal->_start = start;
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pal->_num = num;
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if (num) {
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memcpy(pal->_data, colors, 4 * num);
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g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
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} else {
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g_system->disableCursorPalette(true);
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}
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}
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} // End of namespace Graphics
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