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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.
*
* $URL$
* $Id$
*
*/
#include "common/stream.h"
#include "draci/draci.h"
#include "draci/screen.h"
namespace Draci {
Screen::Screen(DraciEngine *vm) : _vm(vm) {
_surface = new Graphics::Surface();
_surface->create(kScreenWidth, kScreenHeight, 1);
this->clearScreen();
_palette = new byte[4 * kNumColours];
setPaletteEmpty();
}
Screen::~Screen() {
_surface->free();
delete[] _surface;
delete[] _palette;
}
void Screen::setPaletteEmpty(unsigned int numEntries) {
for (unsigned int i = 0; i < 4 * numEntries; ++i) {
_palette[i] = 0;
}
_vm->_system->setPalette(_palette, 0, numEntries);
_vm->_system->updateScreen();
}
void Screen::setPalette(byte *data, uint16 start, uint16 num) {
Common::MemoryReadStream pal(data, 3 * kNumColours);
pal.seek(start * 4);
// Copy the palette
for (unsigned int i = start; i < start + num; ++i) {
_palette[i * 4] = pal.readByte();
_palette[i * 4 + 1] = pal.readByte();
_palette[i * 4 + 2] = pal.readByte();
_palette[i * 4 + 3] = 0;
}
// TODO: Investigate why this is needed
// Shift the palette one bit to the left to make it brighter
for (unsigned int i = 0; i < 4 * kNumColours; ++i) {
_palette[i] <<= 2;
}
_vm->_system->setPalette(_palette, start, num);
_vm->_system->updateScreen();
}
void Screen::copyToScreen() const {
byte *ptr = (byte *)_surface->getBasePtr(0, 0);
_vm->_system->copyRectToScreen(ptr, kScreenWidth, 0, 0,
kScreenWidth, kScreenHeight);
_vm->_system->updateScreen();
}
void Screen::clearScreen() const {
byte *ptr = (byte *)_surface->getBasePtr(0, 0);
memset(ptr, 0, kScreenWidth * kScreenHeight);
}
void Screen::drawSprite(const Sprite &s) const {
byte *dst = (byte *)_surface->getBasePtr(s._x, s._y);
byte *src = s._data;
for (unsigned int i = 0; i < s._height; ++i) {
for(unsigned int j = 0; j < s._width; ++j) {
dst[j] = *src++;
}
dst += _surface->pitch;
}
}
void Screen::fillScreen(uint16 colour) const {
byte *ptr = (byte *)_surface->getBasePtr(0, 0);
memset(ptr, colour, kScreenWidth * kScreenHeight);
}
byte *Screen::getPalette() const {
return _palette;
}
Graphics::Surface *Screen::getSurface() {
return _surface;
}
} // End of namespace Draci
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