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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.
*
* 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/debug.h"
#include "common/file.h"
#include "graphics/surface.h"
#include "cryomni3d/sprites.h"
// #define SPRTIES_DEBUG
namespace CryOmni3D {
#define MAP_ID(id) \
do { \
if (_map) { \
id = (*_map)[id]; \
} \
} while(false)
Sprites::Sprites() : _map(nullptr) {
_surface = new Graphics::Surface();
}
Sprites::~Sprites() {
for (Common::Array<CryoCursor *>::iterator it = _cursors.begin(); it != _cursors.end(); it++) {
if ((*it)->refCnt > 1) {
(*it)->refCnt--;
} else {
delete *it;
}
}
delete _map;
delete _surface;
}
void Sprites::loadSprites(Common::ReadStream &spr_fl) {
while (true) {
uint32 magic = spr_fl.readUint32BE();
if (spr_fl.eos()) {
// We are EOS so last read likely failed
break;
}
if (magic != MKTAG('S', 'P', 'R', 'I')) {
error("Invalid sprite magic");
}
// 2 unknown uint32
(void) spr_fl.readUint32BE();
(void) spr_fl.readUint32BE();
CryoCursor *cursor = new CryoCursor();
uint16 w = spr_fl.readUint16BE();
uint16 h = spr_fl.readUint16BE();
uint sz = cursor->setup(w, h);
cursor->_offX = spr_fl.readUint32BE();
cursor->_offY = spr_fl.readUint32BE();
spr_fl.read(cursor->_data, sz);
_cursors.push_back(cursor);
}
}
void Sprites::setupMapTable(const uint *table, uint size) {
delete _map;
_map = nullptr;
// Reset the reverse mapping
for (Common::Array<CryoCursor *>::iterator it = _cursors.begin(); it != _cursors.end(); it++) {
(*it)->_constantId = uint(-1);
}
if (table) {
_map = new Common::Array<uint>(table, size);
// Sweep all the mapping and set its reverse values
uint i = 0;
for (Common::Array<uint>::const_iterator it = _map->begin(); it != _map->end(); it++, i++) {
_cursors[*it]->_constantId = i;
}
#ifdef SPRITES_DEBUG
// Normally we don't have any unreachable sprties from constants,
// as it could be time consuming, this should be fixed in the static map
// Count unswept values
uint unswept = 0;
for (Common::Array<CryoCursor *>::iterator it = _cursors.begin(); it != _cursors.end(); it++) {
if ((*it)->_constantId == -1u) {
unswept++;
}
}
if (unswept) {
warning("We got %d unreachable sprites from map table. This should not happen."
" Fixing it for now", unswept);
// Enlarge the map to hold new indexes
_map->reserve(_map->size() + unswept);
// Set new indexes to unswept sprites
i = 0;
for (Common::Array<CryoCursor *>::iterator it = _cursors.begin(); it != _cursors.end(); it++, i++) {
if ((*it)->_constantId == -1u) {
warning("Fixing sprite the %d sprite", i);
(*it)->_constantId = _map->size();
_map->push_back(i);
}
}
}
#endif
}
}
void Sprites::setSpriteHotspot(uint spriteId, uint x, uint y) {
MAP_ID(spriteId);
_cursors[spriteId]->_offX = x;
_cursors[spriteId]->_offY = y;
}
void Sprites::replaceSprite(uint oldSpriteId, uint newSpriteId) {
MAP_ID(oldSpriteId);
MAP_ID(newSpriteId);
if (_cursors[oldSpriteId]->refCnt > 1) {
_cursors[oldSpriteId]->refCnt--;
} else {
delete _cursors[oldSpriteId];
}
_cursors[oldSpriteId] = _cursors[newSpriteId];
_cursors[oldSpriteId]->refCnt++;
}
void Sprites::replaceSpriteColor(uint spriteId, byte currentColor, byte newColor) {
MAP_ID(spriteId);
byte *data = _cursors[spriteId]->_data;
uint size = _cursors[spriteId]->_width * _cursors[spriteId]->_height;
for (; size > 0; size--, data++) {
if (*data == currentColor) {
*data = newColor;
}
}
}
uint Sprites::getSpritesCount() const {
if (_map) {
return _map->size();
} else {
return _cursors.size();
}
}
uint Sprites::revMapSpriteId(uint id) const {
if (_map) {
if (id >= _cursors.size()) {
error("revMapSpriteId is out of bounds: %d/%d", id, _cursors.size());
}
id = _cursors[id]->_constantId;
}
return id;
}
uint Sprites::calculateSpriteId(uint baseId, uint offset) const {
if (_map) {
MAP_ID(baseId);
baseId += offset;
if (baseId >= _cursors.size()) {
error("Calculate sprite is out of bounds: %d/%d", baseId, _cursors.size());
}
uint spriteId = _cursors[baseId]->_constantId;
if (spriteId == uint(-1)) {
error("Sprite %d is unreachable", baseId);
}
return spriteId;
} else {
return baseId + offset;
}
}
const Graphics::Surface &Sprites::getSurface(uint spriteId) const {
MAP_ID(spriteId);
CryoCursor *cursor = _cursors[spriteId];
_surface->init(cursor->_width, cursor->_height, cursor->_width, cursor->_data,
Graphics::PixelFormat::createFormatCLUT8());
return *_surface;
}
const Graphics::Cursor &Sprites::getCursor(uint spriteId) const {
MAP_ID(spriteId);
return *_cursors[spriteId];
}
Sprites::CryoCursor::CryoCursor() : _width(0), _height(0), _offX(0), _offY(0), _data(nullptr),
refCnt(1) {
}
Sprites::CryoCursor::~CryoCursor() {
assert(refCnt == 1);
delete[] _data;
}
uint Sprites::CryoCursor::setup(uint16 width, uint16 height) {
_width = width;
_height = height;
uint sz = _width * _height;
_data = new byte[sz];
return sz;
}
} // End of namespace CryOmni3D
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