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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* Additional copyright for this file:
* Copyright (C) 1995-1997 Presto Studios, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/events.h"
#include "common/stream.h"
#include "common/system.h"
#include "graphics/cursorman.h"
#include "graphics/pict.h"
#include "graphics/surface.h"
#include "pegasus/cursor.h"
#include "pegasus/graphics.h"
#include "pegasus/pegasus.h"
namespace Pegasus {
Cursor::Cursor() {
_cursorObscured = false;
_index = -1;
startIdling();
}
Cursor::~Cursor() {
for (uint32 i = 0; i < _info.size(); i++) {
if (_info[i].surface) {
_info[i].surface->free();
delete _info[i].surface;
}
delete[] _info[i].palette;
}
stopIdling();
}
void Cursor::addCursorFrames(uint16 id) {
PegasusEngine *vm = (PegasusEngine *)g_engine;
Common::SeekableReadStream *cursStream = vm->_resFork->getResource(MKTAG('C', 'u', 'r', 's'), id);
if (!cursStream)
error("Could not load cursor frames set %d", id);
uint16 frameCount = cursStream->readUint16BE();
for (uint16 i = 0; i < frameCount; i++) {
CursorInfo info;
info.tag = cursStream->readUint16BE();
info.hotspot.x = cursStream->readUint16BE();
info.hotspot.y = cursStream->readUint16BE();
info.surface = 0;
info.palette = 0;
info.colorCount = 0;
_info.push_back(info);
}
delete cursStream;
setCurrentFrameIndex(0);
}
void Cursor::setCurrentFrameIndex(int32 index) {
if (_index != index) {
_index = index;
if (index != -1) {
loadCursorImage(_info[index]);
CursorMan.replaceCursorPalette(_info[index].palette, 0, _info[index].colorCount);
CursorMan.replaceCursor((byte *)_info[index].surface->pixels, _info[index].surface->w, _info[index].surface->h, _info[index].hotspot.x, _info[index].hotspot.y, 0);
((PegasusEngine *)g_engine)->_gfx->markCursorAsDirty();
}
}
}
int32 Cursor::getCurrentFrameIndex() const {
return _index;
}
void Cursor::show() {
if (!isVisible())
CursorMan.showMouse(true);
_cursorObscured = false;
((PegasusEngine *)g_engine)->_gfx->markCursorAsDirty();
}
void Cursor::hide() {
CursorMan.showMouse(false);
setCurrentFrameIndex(0);
}
void Cursor::hideUntilMoved() {
if (!_cursorObscured) {
hide();
_cursorObscured = true;
}
}
void Cursor::useIdleTime() {
if (g_system->getEventManager()->getMousePos() != _cursorLocation) {
_cursorLocation = g_system->getEventManager()->getMousePos();
if (_index != -1 && _cursorObscured)
show();
((PegasusEngine *)g_engine)->_gfx->markCursorAsDirty();
}
}
void Cursor::getCursorLocation(Common::Point &pt) const {
pt = _cursorLocation;
}
bool Cursor::isVisible() {
return CursorMan.isVisible();
}
void Cursor::loadCursorImage(CursorInfo &cursorInfo) {
if (cursorInfo.surface)
return;
cursorInfo.surface = new Graphics::Surface();
PegasusEngine *vm = (PegasusEngine *)g_engine;
Common::SeekableReadStream *cicnStream = vm->_resFork->getResource(MKTAG('c', 'i', 'c', 'n'), cursorInfo.tag);
if (!cicnStream)
error("Failed to find color icon %d", cursorInfo.tag);
// PixMap section
Graphics::PictDecoder::PixMap pixMap = Graphics::PictDecoder::readPixMap(cicnStream);
// Mask section
cicnStream->readUint32BE(); // mask baseAddr
uint16 maskRowBytes = cicnStream->readUint16BE(); // mask rowBytes
cicnStream->skip(3 * 2); // mask rect
/* uint16 maskHeight = */ cicnStream->readUint16BE();
// Bitmap section
cicnStream->readUint32BE(); // baseAddr
uint16 rowBytes = cicnStream->readUint16BE();
cicnStream->readUint16BE(); // top
cicnStream->readUint16BE(); // left
uint16 height = cicnStream->readUint16BE(); // bottom
cicnStream->readUint16BE(); // right
// Data section
cicnStream->readUint32BE(); // icon handle
cicnStream->skip(maskRowBytes * height); // FIXME: maskHeight doesn't work here, though the specs say it should
cicnStream->skip(rowBytes * height);
// Palette section
cicnStream->readUint32BE(); // always 0
cicnStream->readUint16BE(); // always 0
cursorInfo.colorCount = cicnStream->readUint16BE() + 1;
cursorInfo.palette = new byte[cursorInfo.colorCount * 3];
for (uint16 i = 0; i < cursorInfo.colorCount; i++) {
cicnStream->readUint16BE();
cursorInfo.palette[i * 3] = cicnStream->readUint16BE() >> 8;
cursorInfo.palette[i * 3 + 1] = cicnStream->readUint16BE() >> 8;
cursorInfo.palette[i * 3 + 2] = cicnStream->readUint16BE() >> 8;
}
// PixMap data
if (pixMap.pixelSize == 8) {
cursorInfo.surface->create(pixMap.rowBytes, pixMap.bounds.height(), Graphics::PixelFormat::createFormatCLUT8());
cicnStream->read(cursorInfo.surface->pixels, pixMap.rowBytes * pixMap.bounds.height());
// While this looks sensible, it actually doesn't work for some cursors
// (ie. the 'can grab' hand)
//cursorInfo.surface->w = pixMap.bounds.width();
} else if (pixMap.pixelSize == 1) {
cursorInfo.surface->create(pixMap.bounds.width(), pixMap.bounds.height(), Graphics::PixelFormat::createFormatCLUT8());
for (int y = 0; y < pixMap.bounds.height(); y++) {
byte *line = (byte *)cursorInfo.surface->getBasePtr(0, y);
for (int x = 0; x < pixMap.bounds.width();) {
byte b = cicnStream->readByte();
for (int i = 0; i < 8; i++) {
*line++ = ((b & (1 << (7 - i))) != 0) ? 1 : 0;
if (++x == pixMap.bounds.width())
break;
}
}
}
} else {
error("Unhandled %dbpp cicn images", pixMap.pixelSize);
}
delete cicnStream;
}
} // End of namespace Pegasus
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