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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.
*
* $URL$
* $Id$
*
*/
#ifndef M4_GRAPHICS_H
#define M4_GRAPHICS_H
#include "common/rect.h"
#include "common/system.h"
#include "common/stream.h"
#include "graphics/surface.h"
#include "m4/globals.h"
namespace M4 {
struct BGR8 {
uint8 b, g, r;
};
struct RGB8 {
uint8 r, g, b, u;
};
//later use ScummVM's Rect?
struct M4Rect {
int32 x1, y1, x2, y2;
};
class M4Surface;
// RGBList
// Implements a list of RGB entries
class RGBList {
private:
int _size;
RGB8 *_data;
byte *_palIndexes;
bool _freeData;
public:
RGBList(int numEntries = 256, RGB8 *srcData = NULL, bool freeData = true);
~RGBList();
RGB8 *data() { return _data; }
byte *palIndexes() { return _palIndexes; }
int size() { return _size; }
RGB8 &operator[](int idx) { return _data[idx]; }
void setRange(int start, int count, const RGB8 *src);
};
// M4Surface
// Class representing either a buffered surface or the physical screen.
class M4Sprite;
struct SpriteInfo {
M4Sprite *sprite;
int hotX, hotY;
int width, height;
int scaleX, scaleY;
uint8 encoding;
byte *inverseColourTable;
RGB8 *palette;
};
class M4Surface : protected Graphics::Surface {
private:
byte _color;
bool _isScreen;
void rexLoadBackground(Common::SeekableReadStream *source, RGBList **palData = NULL);
void madsLoadBackground(int roomNumber, RGBList **palData = NULL);
void m4LoadBackground(Common::SeekableReadStream *source);
public:
M4Surface(bool isScreen = false) {
create(g_system->getWidth(), g_system->getHeight(), 1);
_isScreen = isScreen;
}
M4Surface(int width_, int height_) {
create(width_, height_, 1);
_isScreen = false;
}
// loads a .COD file into the M4Surface
// TODO: maybe move this to the rail system? check where it makes sense
// The sprite drawing needs this, too, so should be more global.
void loadCodesM4(Common::SeekableReadStream *source);
void loadCodesMads(Common::SeekableReadStream *source);
// loads the specified background
void loadBackground(int sceneNumber, RGBList **palData = NULL);
void loadBackgroundRiddle(const char *sceneName);
void madsloadInterface(int index, RGBList **palData);
void setColor(byte value) { _color = value; }
void setColour(byte value) { _color = value; }
inline byte getColor() const { return _color; }
void vLine(int x, int y1, int y2);
void hLine(int x1, int x2, int y);
void vLineXor(int x, int y1, int y2);
void hLineXor(int x1, int x2, int y);
void drawLine(int x1, int y1, int x2, int y2, byte color);
void frameRect(int x1, int y1, int x2, int y2);
void fillRect(int x1, int y1, int x2, int y2);
void drawSprite(int x, int y, SpriteInfo &info, const Common::Rect &clipRect);
// Surface methods
inline Common::Rect bounds() const { return Common::Rect(0, 0, width(), height()); }
inline int width() const { return w; }
inline int height() const { return h; }
void setSize(int sizeX, int sizeY) { create(sizeX, sizeY, 1); }
inline byte *getBasePtr() {
return (byte *)pixels;
}
inline byte *getBasePtr(int x, int y) {
return (byte *)Graphics::Surface::getBasePtr(x, y);
}
inline const byte *getBasePtr(int x, int y) const {
return (const byte *)Graphics::Surface::getBasePtr(x, y);
}
void freeData();
void clear();
void frameRect(const Common::Rect &r, uint8 color);
void fillRect(const Common::Rect &r, uint8 color);
void copyFrom(M4Surface *src, const Common::Rect &srcBounds, int destX, int destY,
int transparentColor = -1);
void update() {
if (_isScreen) {
g_system->copyRectToScreen((const byte *)pixels, pitch, 0, 0, w, h);
g_system->updateScreen();
}
}
// copyTo methods
inline void copyTo(M4Surface *dest, int transparentColor = -1) {
dest->copyFrom(this, Common::Rect(width(), height()), 0, 0, transparentColor);
}
inline void copyTo(M4Surface *dest, int x, int y, int transparentColor = -1) {
dest->copyFrom(this, Common::Rect(width(), height()), x, y, transparentColor);
}
inline void copyTo(M4Surface *dest, const Common::Rect &srcBounds, int destX, int destY,
int transparentColor = -1) {
dest->copyFrom(this, srcBounds, destX, destY, transparentColor);
}
void translate(RGBList *list, bool isTransparent = false);
};
enum FadeType {FT_TO_GREY, FT_TO_COLOR, FT_TO_BLOCK};
class Palette {
private:
MadsM4Engine *_vm;
bool _colorsChanged;
bool _fading_in_progress;
byte _originalPalette[256 * 4];
byte _fadedPalette[256 * 4];
int _usageCount[256];
void reset();
public:
Palette(MadsM4Engine *vm);
void setPalette(const byte *colors, uint start, uint num);
void setPalette(const RGB8 *colors, uint start, uint num);
void grabPalette(byte *colors, uint start, uint num);
void grabPalette(RGB8 *colors, uint start, uint num) {
grabPalette((byte *)colors, start, num);
}
void setEntry(uint index, uint8 r, uint8 g, uint8 b);
uint8 palIndexFromRgb(byte r, byte g, byte b, RGB8 *paletteData = NULL);
void fadeToGreen(int numSteps, uint delayAmount);
void fadeFromGreen(int numSteps, uint delayAmount, bool fadeToBlack);
void fadeIn(int numSteps, uint delayAmount, RGB8 *destPalette, int numColors);
void fadeIn(int numSteps, uint delayAmount, RGBList *destPalette);
static RGB8 *decodeMadsPalette(Common::SeekableReadStream *palStream, int *numColors);
int setMadsPalette(Common::SeekableReadStream *palStream, int indexStart = 0);
void setMadsSystemPalette();
// Methods used for reference counting color usage
void resetColorCounts();
void blockRange(int startIndex, int size);
void addRange(RGBList *list);
void deleteRange(RGBList *list);
void deleteAllRanges();
// Color indexes
uint8 BLACK;
uint8 BLUE;
uint8 GREEN;
uint8 CYAN;
uint8 RED;
uint8 VIOLET;
uint8 BROWN;
uint8 LIGHT_GRAY;
uint8 DARK_GRAY;
uint8 LIGHT_BLUE;
uint8 LIGHT_GREEN;
uint8 LIGHT_CYAN;
uint8 LIGHT_RED;
uint8 PINK;
uint8 YELLOW;
uint8 WHITE;
};
void decompressRle(byte *rleData, int rleSize, byte *celData, int w, int h);
void decompressRle(Common::SeekableReadStream &rleData, byte *celData, int w, int h);
int scaleValue(int value, int scale, int err);
} // End of namespace M4
#endif
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