scummvm/engines/mohawk/cursors.cpp
Max Horn 0ce2ca4e00 COMMON: Replace MKID_BE by MKTAG
MKID_BE relied on unspecified behavior of the C++ compiler,
and as such was always a bit unsafe. The new MKTAG macro
is slightly less elegant, but does no longer depend on the
behavior of the compiler.
Inspired by FFmpeg, which has an almost identical macro.
2011-04-12 16:53:15 +02:00

305 lines
8.2 KiB
C++

/* 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.
*
* 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.
*
* $URL$
* $Id$
*
*/
#include "mohawk/cursors.h"
#include "mohawk/mohawk.h"
#include "mohawk/resource.h"
#include "common/macresman.h"
#include "common/system.h"
#include "common/winexe_ne.h"
#include "common/winexe_pe.h"
#include "graphics/cursorman.h"
#include "graphics/wincursor.h"
#ifdef ENABLE_MYST
#include "mohawk/bitmap.h"
#include "mohawk/myst.h"
#endif
namespace Mohawk {
static const byte s_bwPalette[] = {
0x00, 0x00, 0x00, // Black
0xFF, 0xFF, 0xFF // White
};
void CursorManager::showCursor() {
CursorMan.showMouse(true);
}
void CursorManager::hideCursor() {
CursorMan.showMouse(false);
}
void CursorManager::setDefaultCursor() {
static const byte defaultCursor[] = {
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0,
1, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0,
1, 2, 2, 2, 2, 1, 0, 0, 0, 0, 0, 0,
1, 2, 2, 2, 2, 2, 1, 0, 0, 0, 0, 0,
1, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0, 0,
1, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0,
1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 0,
1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0,
1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1,
1, 2, 2, 2, 1, 2, 2, 1, 0, 0, 0, 0,
1, 2, 2, 1, 1, 2, 2, 1, 0, 0, 0, 0,
1, 2, 1, 0, 1, 1, 2, 2, 1, 0, 0, 0,
1, 1, 0, 0, 0, 1, 2, 2, 1, 0, 0, 0,
1, 0, 0, 0, 0, 0, 1, 2, 2, 1, 0, 0,
0, 0, 0, 0, 0, 0, 1, 2, 2, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 1, 0,
0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 1, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0
};
CursorMan.replaceCursor(defaultCursor, 12, 20, 0, 0, 0);
CursorMan.replaceCursorPalette(s_bwPalette, 1, 2);
}
void CursorManager::setCursor(uint16 id) {
// For the base class, just use the default cursor always
setDefaultCursor();
}
void CursorManager::setMacXorCursor(Common::SeekableReadStream *stream) {
assert(stream);
byte cursorBitmap[16 * 16];
// Get black and white data
for (int i = 0; i < 32; i++) {
byte imageByte = stream->readByte();
for (int b = 0; b < 8; b++)
cursorBitmap[i * 8 + b] = (imageByte & (0x80 >> b)) ? 1 : 2;
}
// Apply mask data
for (int i = 0; i < 32; i++) {
byte imageByte = stream->readByte();
for (int b = 0; b < 8; b++)
if ((imageByte & (0x80 >> b)) == 0)
cursorBitmap[i * 8 + b] = 0;
}
uint16 hotspotY = stream->readUint16BE();
uint16 hotspotX = stream->readUint16BE();
CursorMan.replaceCursor(cursorBitmap, 16, 16, hotspotX, hotspotY, 0);
CursorMan.replaceCursorPalette(s_bwPalette, 1, 2);
}
void DefaultCursorManager::setCursor(uint16 id) {
setMacXorCursor(_vm->getResource(_tag, id));
}
#ifdef ENABLE_MYST
MystCursorManager::MystCursorManager(MohawkEngine_Myst *vm) : _vm(vm) {
_bmpDecoder = new MystBitmap();
}
MystCursorManager::~MystCursorManager() {
delete _bmpDecoder;
}
void MystCursorManager::showCursor() {
CursorMan.showMouse(true);
_vm->_needsUpdate = true;
}
void MystCursorManager::hideCursor() {
CursorMan.showMouse(false);
_vm->_needsUpdate = true;
}
void MystCursorManager::setCursor(uint16 id) {
// Both Myst and Myst ME use the "MystBitmap" format for cursor images.
MohawkSurface *mhkSurface = _bmpDecoder->decodeImage(_vm->getResource(ID_WDIB, id));
Graphics::Surface *surface = mhkSurface->getSurface();
Common::SeekableReadStream *clrcStream = _vm->getResource(ID_CLRC, id);
uint16 hotspotX = clrcStream->readUint16LE();
uint16 hotspotY = clrcStream->readUint16LE();
delete clrcStream;
// Myst ME stores some cursors as 24bpp images instead of 8bpp
if (surface->bytesPerPixel == 1) {
CursorMan.replaceCursor((byte *)surface->pixels, surface->w, surface->h, hotspotX, hotspotY, 0);
CursorMan.replaceCursorPalette(mhkSurface->getPalette(), 0, 256);
} else {
Graphics::PixelFormat pixelFormat = g_system->getScreenFormat();
CursorMan.replaceCursor((byte *)surface->pixels, surface->w, surface->h, hotspotX, hotspotY, pixelFormat.RGBToColor(255, 255, 255), 1, &pixelFormat);
}
_vm->_needsUpdate = true;
delete mhkSurface;
}
void MystCursorManager::setDefaultCursor() {
setCursor(kDefaultMystCursor);
}
#endif
NECursorManager::NECursorManager(const Common::String &appName) {
_exe = new Common::NEResources();
if (!_exe->loadFromEXE(appName)) {
// Not all have cursors anyway, so this is not a problem
delete _exe;
_exe = 0;
}
}
NECursorManager::~NECursorManager() {
delete _exe;
}
void NECursorManager::setCursor(uint16 id) {
if (_exe) {
Graphics::WinCursorGroup *cursorGroup = Graphics::WinCursorGroup::createCursorGroup(*_exe, id);
if (cursorGroup) {
Graphics::WinCursor *cursor = cursorGroup->cursors[0].cursor;
CursorMan.replaceCursor(cursor->getSurface(), cursor->getWidth(), cursor->getHeight(), cursor->getHotspotX(), cursor->getHotspotY(), cursor->getKeyColor());
CursorMan.replaceCursorPalette(cursor->getPalette(), 0, 256);
return;
}
}
// Last resort (not all have cursors)
setDefaultCursor();
}
MacCursorManager::MacCursorManager(const Common::String &appName) {
if (!appName.empty()) {
_resFork = new Common::MacResManager();
if (!_resFork->open(appName)) {
// Not all have cursors anyway, so this is not a problem
delete _resFork;
_resFork = 0;
}
} else {
_resFork = 0;
}
}
MacCursorManager::~MacCursorManager() {
delete _resFork;
}
void MacCursorManager::setCursor(uint16 id) {
if (!_resFork) {
setDefaultCursor();
return;
}
// Try a color cursor first
Common::SeekableReadStream *stream = _resFork->getResource(MKTAG('c','r','s','r'), id);
if (stream) {
byte *cursor, *palette;
int width, height, hotspotX, hotspotY, keyColor, palSize;
_resFork->convertCrsrCursor(stream, &cursor, width, height, hotspotX, hotspotY, keyColor, true, &palette, palSize);
CursorMan.replaceCursor(cursor, width, height, hotspotX, hotspotY, keyColor);
CursorMan.replaceCursorPalette(palette, 0, palSize);
delete[] cursor;
delete[] palette;
delete stream;
return;
}
// Fall back to b&w cursors
stream = _resFork->getResource(MKTAG('C','U','R','S'), id);
if (stream) {
setMacXorCursor(stream);
delete stream;
} else {
setDefaultCursor();
}
}
LivingBooksCursorManager_v2::LivingBooksCursorManager_v2() {
// Try to open the system archive if we have it
_sysArchive = new MohawkArchive();
if (!_sysArchive->open("system.mhk")) {
delete _sysArchive;
_sysArchive = 0;
}
}
LivingBooksCursorManager_v2::~LivingBooksCursorManager_v2() {
delete _sysArchive;
}
void LivingBooksCursorManager_v2::setCursor(uint16 id) {
if (_sysArchive && _sysArchive->hasResource(ID_TCUR, id)) {
setMacXorCursor(_sysArchive->getResource(ID_TCUR, id));
} else {
// TODO: Handle generated cursors
}
}
PECursorManager::PECursorManager(const Common::String &appName) {
_exe = new Common::PEResources();
if (!_exe->loadFromEXE(appName)) {
// Not all have cursors anyway, so this is not a problem
delete _exe;
_exe = 0;
}
}
PECursorManager::~PECursorManager() {
delete _exe;
}
void PECursorManager::setCursor(uint16 id) {
if (_exe) {
Graphics::WinCursorGroup *cursorGroup = Graphics::WinCursorGroup::createCursorGroup(*_exe, id);
if (cursorGroup) {
Graphics::WinCursor *cursor = cursorGroup->cursors[0].cursor;
CursorMan.replaceCursor(cursor->getSurface(), cursor->getWidth(), cursor->getHeight(), cursor->getHotspotX(), cursor->getHotspotY(), cursor->getKeyColor());
CursorMan.replaceCursorPalette(cursor->getPalette(), 0, 256);
return;
}
}
// Last resort (not all have cursors)
setDefaultCursor();
}
} // End of namespace Mohawk