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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.
*
*/
/*
* This code is based on the original source code of Lord Avalot d'Argent version 1.3.
* Copyright (c) 1994-1995 Mike, Mark and Thomas Thurman.
*/
/* Replacement class for the Graph unit from Pascal. */
#include "avalanche/avalanche.h"
#include "avalanche/graph.h"
#include "common/system.h"
#include "engines/util.h"
#include "graphics/palette.h"
#include "common/rect.h"
namespace Avalanche {
const byte Graph::_egaPaletteIndex[16] = {0, 1, 2, 3, 4, 5, 20, 7, 56, 57, 58, 59, 60, 61, 62, 63};
void Graph::setParent(AvalancheEngine *vm) {
_vm = vm;
}
void Graph::init() {
initGraphics(_screenWidth, _screenHeight, true);
for (int i = 0; i < 64; ++i) {
_egaPalette[i][0] = (i >> 2 & 1) * 0xaa + (i >> 5 & 1) * 0x55;
_egaPalette[i][1] = (i >> 1 & 1) * 0xaa + (i >> 4 & 1) * 0x55;
_egaPalette[i][2] = (i & 1) * 0xaa + (i >> 3 & 1) * 0x55;
}
for (byte i = 0; i < 16; i++)
g_system->getPaletteManager()->setPalette(_egaPalette[_egaPaletteIndex[i]], i, 1);
_surface.create(_screenWidth, _screenHeight, Graphics::PixelFormat::createFormatCLUT8());
}
Graph::~Graph() {
_surface.free();
}
byte *Graph::getPixel(int16 x, int16 y) {
return (byte *)_surface.getBasePtr(x, y);
}
void Graph::setPixel(int16 x, int16 y, byte color) {
*(byte *)_surface.getBasePtr(x, y) = color;
}
void Graph::drawBar(int16 x1, int16 y1, int16 x2, int16 y2, int16 color) {
_surface.fillRect(Common::Rect(x1, y1, x2, y2), color);
}
void Graph::drawLine(int x0, int y0, int x1, int y1, uint32 color) {
_surface.drawLine(x0, y0, x1, y1, color);
}
void Graph::drawSprite(const SpriteInfo &sprite) {
warning("STUB: Graph::drawSprite()");
}
Graphics::Surface *Graph::readImage(const byte *source) {
Graphics::Surface *picture = new Graphics::Surface;
uint32 i = 0;
uint16 pictureWidth = (source[i++] + 1);
pictureWidth += (source[i++] << 8);
uint16 pictureHeight = (source[i++] + 1);
pictureHeight += (source[i++] << 8);
picture->create(pictureWidth, pictureHeight, Graphics::PixelFormat::createFormatCLUT8());
for (byte y = 0; y < pictureHeight; y++)
for (int8 plane = 3; plane >= 0; plane--) // The planes are in the opposite way.
for (uint16 x = 0; x < pictureWidth; x += 8) {
byte pixel = source[i++];
for (byte i = 0; i < 8; i++) {
byte pixelBit = (pixel >> i) & 1;
*(byte *)picture->getBasePtr(x + 7 - i, y) += (pixelBit << plane);
}
}
return picture;
}
void Graph::copySurface(const Graphics::Surface &source, uint16 destX, uint16 destY) {
for (uint16 y = 0; y < source.h; y++)
for (uint16 x = 0; x < source.w; x++)
*(byte *)_surface.getBasePtr(x + destX, y + destY) = *(byte *)source.getBasePtr(x, y);
}
void Graph::refreshScreen() {
g_system->copyRectToScreen(_surface.pixels, _surface.pitch , 0, 0, _screenWidth, _screenHeight);
g_system->updateScreen();
}
} // End of namespace Avalanche
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