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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 PARALLACTION_GRAPHICS_H
#define PARALLACTION_GRAPHICS_H
#include "common/list.h"
#include "common/rect.h"
#include "common/hash-str.h"
#include "common/stream.h"
#include "graphics/surface.h"
namespace Parallaction {
#include "common/pack-start.h" // START STRUCT PACKING
struct PaletteFxRange {
uint16 _timer;
uint16 _step;
uint16 _flags;
byte _first;
byte _last;
} PACKED_STRUCT;
#include "common/pack-end.h" // END STRUCT PACKING
class Font {
protected:
byte _color;
public:
Font() {}
virtual ~Font() {}
virtual void setColor(byte color) {
_color = color;
}
virtual uint32 getStringWidth(const char *s) = 0;
virtual uint16 height() = 0;
virtual void drawString(byte* buffer, uint32 pitch, const char *s) = 0;
};
struct Frames {
virtual uint16 getNum() = 0;
virtual byte* getData(uint16 index) = 0;
virtual void getRect(uint16 index, Common::Rect &r) = 0;
virtual uint getRawSize(uint16 index) = 0;
virtual uint getSize(uint16 index) = 0;
virtual ~Frames() { }
};
struct SurfaceToFrames : public Frames {
Graphics::Surface *_surf;
public:
SurfaceToFrames(Graphics::Surface *surf) : _surf(surf) {
}
~SurfaceToFrames() {
_surf->free();
delete _surf;
}
uint16 getNum() {
return 1;
}
byte* getData(uint16 index) {
assert(index == 0);
return (byte*)_surf->getBasePtr(0,0);
}
void getRect(uint16 index, Common::Rect &r) {
assert(index == 0);
r.left = 0;
r.top = 0;
r.setWidth(_surf->w);
r.setHeight(_surf->h);
}
uint getRawSize(uint16 index) {
assert(index == 0);
return getSize(index);
}
uint getSize(uint16 index) {
assert(index == 0);
return _surf->w * _surf->h;
}
};
/*
this adapter can handle Surfaces containing multiple frames,
provided all these frames are the same width and height
*/
struct SurfaceToMultiFrames : public Frames {
uint _num;
uint _width, _height;
Graphics::Surface *_surf;
SurfaceToMultiFrames(uint num, uint w, uint h, Graphics::Surface *surf) : _num(num), _width(w), _height(h), _surf(surf) {
}
~SurfaceToMultiFrames() {
delete _surf;
}
uint16 getNum() {
return _num;
}
byte* getData(uint16 index) {
assert(index < _num);
return (byte*)_surf->getBasePtr(0, _height * index);
}
void getRect(uint16 index, Common::Rect &r) {
assert(index < _num);
r.left = 0;
r.top = 0;
r.setWidth(_width);
r.setHeight(_height);
}
uint getRawSize(uint16 index) {
assert(index == 0);
return getSize(index);
}
uint getSize(uint16 index) {
assert(index == 0);
return _width * _height;
}
};
struct MaskBuffer {
// handles a 2-bit depth buffer used for z-buffering
uint16 w;
uint16 internalWidth;
uint16 h;
uint size;
byte *data;
bool bigEndian;
public:
MaskBuffer() : w(0), internalWidth(0), h(0), size(0), data(0), bigEndian(true) {
}
void create(uint16 width, uint16 height) {
w = width;
internalWidth = w >> 2;
h = height;
size = (internalWidth * h);
data = (byte*)calloc(size, 1);
}
void free() {
::free(data);
data = 0;
w = 0;
h = 0;
internalWidth = 0;
size = 0;
}
inline byte getValue(uint16 x, uint16 y) {
byte m = data[(x >> 2) + y * internalWidth];
uint n;
if (bigEndian) {
n = (x & 3) << 1;
} else {
n = (3 - (x & 3)) << 1;
}
return (m >> n) & 3;
}
};
struct PathBuffer {
// handles a 1-bit depth buffer used for masking non-walkable areas
uint16 w;
uint16 internalWidth;
uint16 h;
uint size;
byte *data;
public:
PathBuffer() : w(0), internalWidth(0), h(0), size(0), data(0) {
}
void create(uint16 width, uint16 height) {
w = width;
internalWidth = w >> 3;
h = height;
size = (internalWidth * h);
data = (byte*)calloc(size, 1);
}
void free() {
::free(data);
data = 0;
w = 0;
h = 0;
internalWidth = 0;
size = 0;
}
inline byte getValue(uint16 x, uint16 y);
};
class Palette {
byte _data[768];
uint _colors;
uint _size;
bool _hb;
public:
Palette();
Palette(const Palette &pal);
void clone(const Palette &pal);
void makeBlack();
void setEntries(byte* data, uint first, uint num);
void setEntry(uint index, int red, int green, int blue);
void makeGrayscale();
void fadeTo(const Palette& target, uint step);
uint fillRGBA(byte *rgba);
void rotate(uint first, uint last, bool forward);
};
struct Cnv : public Frames {
uint16 _count; // # of frames
uint16 _width; //
uint16 _height; //
byte** field_8; // unused
byte* _data;
public:
Cnv() {
_width = _height = _count = 0;
_data = NULL;
}
Cnv(uint16 numFrames, uint16 width, uint16 height, byte* data) : _count(numFrames), _width(width), _height(height), _data(data) {
}
~Cnv() {
free(_data);
}
byte* getFramePtr(uint16 index) {
if (index >= _count)
return NULL;
return &_data[index * _width * _height];
}
uint16 getNum() {
return _count;
}
byte *getData(uint16 index) {
return getFramePtr(index);
}
void getRect(uint16 index, Common::Rect &r) {
r.left = 0;
r.top = 0;
r.setWidth(_width);
r.setHeight(_height);
}
uint getRawSize(uint16 index) {
assert(index < _count);
return getSize(index);
}
uint getSize(uint16 index) {
assert(index < _count);
return _width * _height;
}
};
#define CENTER_LABEL_HORIZONTAL -1
#define CENTER_LABEL_VERTICAL -1
struct Label {
Graphics::Surface _cnv;
Common::Point _pos;
bool _visible;
Label();
~Label();
void free();
void resetPosition();
};
#define MAX_BALLOON_WIDTH 130
class Parallaction;
struct DoorData;
struct GetData;
struct Label;
class Disk;
enum {
kGfxObjVisible = 1,
kGfxObjTypeDoor = 0,
kGfxObjTypeGet = 1,
kGfxObjTypeAnim = 2
};
class GfxObj {
char *_name;
Frames *_frames;
uint32 _flags;
bool _keep;
public:
int16 x, y;
uint16 z;
uint type;
uint frame;
uint layer;
GfxObj(uint type, Frames *frames, const char *name = NULL);
virtual ~GfxObj();
const char *getName() const;
uint getNum();
void getRect(uint frame, Common::Rect &r);
byte *getData(uint frame);
uint getRawSize(uint frame);
uint getSize(uint frame);
void setFlags(uint32 flags);
void clearFlags(uint32 flags);
bool isVisible() {
return (_flags & kGfxObjVisible) == kGfxObjVisible;
}
void release();
};
typedef Common::List<GfxObj*> GfxObjList;
#define LAYER_FOREGROUND 3
/*
BackgroundInfo keeps information about the background bitmap that can be seen in the game.
These bitmaps can be of any size, smaller or larger than the visible screen, the latter
being the most common options.
*/
struct BackgroundInfo {
int x, y; // used to display bitmaps smaller than the screen
int width;
int height;
Graphics::Surface bg;
MaskBuffer mask;
PathBuffer path;
Palette palette;
int layers[4];
PaletteFxRange ranges[6];
BackgroundInfo() : x(0), y(0), width(0), height(0) {
layers[0] = layers[1] = layers[2] = layers[3] = 0;
memset(ranges, 0, sizeof(ranges));
}
void setPaletteRange(int index, const PaletteFxRange& range) {
assert(index < 6);
memcpy(&ranges[index], &range, sizeof(PaletteFxRange));
}
uint16 getLayer(uint16 z) {
for (uint16 i = 0; i < 3; i++) {
if (layers[i+1] > z) return i;
}
return LAYER_FOREGROUND;
}
void free() {
bg.free();
mask.free();
path.free();
x = 0;
y = 0;
width = 0;
height = 0;
}
};
enum {
kBackgroundLocation = 1,
kBackgroundSlide = 2
};
class Gfx {
public:
Disk *_disk;
GfxObjList _gfxobjList[3];
GfxObj* loadAnim(const char *name);
GfxObj* loadGet(const char *name);
GfxObj* loadDoor(const char *name);
void drawGfxObjects(Graphics::Surface &surf);
void showGfxObj(GfxObj* obj, bool visible);
void clearGfxObjects();
void sortAnimations();
// labels
void setFloatingLabel(Label *label);
Label *renderFloatingLabel(Font *font, char *text);
uint createLabel(Font *font, const char *text, byte color);
void showLabel(uint id, int16 x, int16 y);
void hideLabel(uint id);
void freeLabels();
// dialogue balloons
int setLocationBalloon(char *text, bool endGame);
int setDialogueBalloon(char *text, uint16 winding, byte textColor);
int setSingleBalloon(char *text, uint16 x, uint16 y, uint16 winding, byte textColor);
void setBalloonText(uint id, char *text, byte textColor);
int hitTestDialogueBalloon(int x, int y);
void getStringExtent(Font *font, char *text, uint16 maxwidth, int16* width, int16* height);
// other items
int setItem(Frames* frames, uint16 x, uint16 y, byte transparentColor = 0);
void setItemFrame(uint item, uint16 f);
void hideDialogueStuff();
void freeBalloons();
void freeItems();
// background surface
BackgroundInfo _backgroundInfo;
void setBackground(uint type, const char* name, const char* mask, const char* path);
void patchBackground(Graphics::Surface &surf, int16 x, int16 y, bool mask = false);
void grabBackground(const Common::Rect& r, Graphics::Surface &dst);
void fillBackground(const Common::Rect& r, byte color);
void invertBackground(const Common::Rect& r);
void freeBackground();
// palette
void setPalette(Palette palette);
void setBlackPalette();
void animatePalette();
// amiga specific
void setHalfbriteMode(bool enable);
void setProjectorPos(int x, int y);
void setProjectorProgram(int16 *data);
int16 *_nextProjectorPos;
// init
Gfx(Parallaction* vm);
virtual ~Gfx();
void beginFrame();
void registerVar(const Common::String &name, int32 initialValue);
void setVar(const Common::String &name, int32 value);
int32 getVar(const Common::String &name);
void clearScreen();
void updateScreen();
public:
Palette _palette;
uint _screenX; // scrolling position
uint _screenY;
protected:
Parallaction* _vm;
bool _halfbrite;
Common::Point _hbCirclePos;
int _hbCircleRadius;
// frame data stored in programmable variables
int32 _varBackgroundMode; // 1 = normal, 2 = only mask
int32 _varScrollX;
int32 _varAnimRenderMode; // 1 = normal, 2 = flat
int32 _varMiscRenderMode; // 1 = normal, 2 = flat
int32 _varRenderMode;
Graphics::Surface _bitmapMask;
int32 getRenderMode(const char *type);
protected:
static int16 _dialogueBalloonX[5];
struct Balloon {
uint16 x;
uint16 y;
Common::Rect outerBox;
Common::Rect innerBox;
uint16 winding;
Graphics::Surface surface;
} _balloons[5];
uint _numBalloons;
struct Item {
uint16 x;
uint16 y;
uint16 frame;
Frames *data;
byte transparentColor;
Common::Rect rect;
} _items[14];
uint _numItems;
#define MAX_NUM_LABELS 5
Label* _labels[MAX_NUM_LABELS];
uint _numLabels;
Label *_floatingLabel;
void drawInventory();
void updateFloatingLabel();
void drawLabels();
void drawItems();
void drawBalloons();
void copyRect(const Common::Rect &r, Graphics::Surface &src, Graphics::Surface &dst);
int createBalloon(int16 w, int16 h, int16 winding, uint16 borderThickness);
Balloon *getBalloon(uint id);
// low level text and patches
void drawText(Font *font, Graphics::Surface* surf, uint16 x, uint16 y, const char *text, byte color);
void drawWrappedText(Font *font, Graphics::Surface* surf, char *text, byte color, int16 wrapwidth);
void blt(const Common::Rect& r, byte *data, Graphics::Surface *surf, uint16 z, byte transparentColor);
void unpackBlt(const Common::Rect& r, byte *data, uint size, Graphics::Surface *surf, uint16 z, byte transparentColor);
};
} // Parallaction
#endif
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