mirror of
https://github.com/libretro/scummvm.git
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641 lines
13 KiB
C++
641 lines
13 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef PARALLACTION_GRAPHICS_H
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#define PARALLACTION_GRAPHICS_H
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#include "common/list.h"
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#include "common/rect.h"
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#include "common/hash-str.h"
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#include "common/stream.h"
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#include "graphics/surface.h"
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namespace Parallaction {
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#include "common/pack-start.h" // START STRUCT PACKING
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struct PaletteFxRange {
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uint16 _timer;
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uint16 _step;
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uint16 _flags;
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byte _first;
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byte _last;
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} PACKED_STRUCT;
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#include "common/pack-end.h" // END STRUCT PACKING
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class Font {
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protected:
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byte _color;
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public:
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Font() {}
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virtual ~Font() {}
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virtual void setColor(byte color) {
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_color = color;
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}
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virtual uint32 getStringWidth(const char *s) = 0;
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virtual uint16 height() = 0;
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virtual void drawString(byte* buffer, uint32 pitch, const char *s) = 0;
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};
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struct Frames {
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virtual uint16 getNum() = 0;
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virtual byte* getData(uint16 index) = 0;
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virtual void getRect(uint16 index, Common::Rect &r) = 0;
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virtual uint getRawSize(uint16 index) = 0;
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virtual uint getSize(uint16 index) = 0;
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virtual ~Frames() { }
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};
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struct SurfaceToFrames : public Frames {
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Graphics::Surface *_surf;
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public:
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SurfaceToFrames(Graphics::Surface *surf) : _surf(surf) {
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}
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~SurfaceToFrames() {
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_surf->free();
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delete _surf;
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}
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uint16 getNum() {
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return 1;
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}
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byte* getData(uint16 index) {
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assert(index == 0);
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return (byte*)_surf->getBasePtr(0,0);
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}
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void getRect(uint16 index, Common::Rect &r) {
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assert(index == 0);
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r.left = 0;
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r.top = 0;
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r.setWidth(_surf->w);
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r.setHeight(_surf->h);
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}
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uint getRawSize(uint16 index) {
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assert(index == 0);
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return getSize(index);
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}
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uint getSize(uint16 index) {
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assert(index == 0);
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return _surf->w * _surf->h;
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}
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};
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struct MaskBuffer {
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// handles a 2-bit depth buffer used for z-buffering
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uint16 w;
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uint16 internalWidth;
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uint16 h;
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uint size;
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byte *data;
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bool bigEndian;
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public:
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MaskBuffer() : w(0), internalWidth(0), h(0), size(0), data(0), bigEndian(true) {
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}
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void create(uint16 width, uint16 height) {
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free();
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w = width;
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internalWidth = w >> 2;
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h = height;
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size = (internalWidth * h);
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data = (byte*)calloc(size, 1);
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}
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void free() {
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::free(data);
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data = 0;
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w = 0;
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h = 0;
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internalWidth = 0;
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size = 0;
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}
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inline byte getValue(uint16 x, uint16 y) {
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byte m = data[(x >> 2) + y * internalWidth];
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uint n;
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if (bigEndian) {
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n = (x & 3) << 1;
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} else {
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n = (3 - (x & 3)) << 1;
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}
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return (m >> n) & 3;
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}
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inline byte* getPtr(uint16 x, uint16 y) const {
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return data + (x >> 2) + y * internalWidth;
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}
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void bltOr(uint16 dx, uint16 dy, const MaskBuffer &src, uint16 sx, uint16 sy, uint width, uint height) {
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assert((width <= w) && (width <= src.w) && (height <= h) && (height <= src.h));
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byte *s = src.getPtr(sx, sy);
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byte *d = getPtr(dx, dy);
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// this code assumes buffers are aligned on 4-pixels boundaries, as the original does
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uint16 linewidth = width >> 2;
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for (uint16 i = 0; i < height; i++) {
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for (uint16 j = 0; j < linewidth; j++) {
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*d++ |= *s++;
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}
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d += internalWidth - linewidth;
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s += src.internalWidth - linewidth;
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}
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}
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void bltCopy(uint16 dx, uint16 dy, const MaskBuffer &src, uint16 sx, uint16 sy, uint width, uint height) {
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assert((width <= w) && (width <= src.w) && (height <= h) && (height <= src.h));
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byte *s = src.getPtr(sx, sy);
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byte *d = getPtr(dx, dy);
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// this code assumes buffers are aligned on 4-pixels boundaries, as the original does
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for (uint16 i = 0; i < height; i++) {
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memcpy(d, s, (width >> 2));
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d += internalWidth;
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s += src.internalWidth;
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}
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}
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};
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struct PathBuffer {
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// handles a 1-bit depth buffer used for masking non-walkable areas
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uint16 w;
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uint16 internalWidth;
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uint16 h;
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uint size;
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byte *data;
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public:
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PathBuffer() : w(0), internalWidth(0), h(0), size(0), data(0) {
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}
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void create(uint16 width, uint16 height) {
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free();
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w = width;
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internalWidth = w >> 3;
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h = height;
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size = (internalWidth * h);
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data = (byte*)calloc(size, 1);
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}
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void free() {
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::free(data);
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data = 0;
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w = 0;
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h = 0;
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internalWidth = 0;
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size = 0;
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}
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inline byte getValue(uint16 x, uint16 y);
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};
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class Palette {
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byte _data[768];
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uint _colors;
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uint _size;
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bool _hb;
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public:
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Palette();
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Palette(const Palette &pal);
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void clone(const Palette &pal);
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void makeBlack();
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void setEntries(byte* data, uint first, uint num);
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void getEntry(uint index, int &red, int &green, int &blue);
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void setEntry(uint index, int red, int green, int blue);
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void makeGrayscale();
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void fadeTo(const Palette& target, uint step);
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uint fillRGBA(byte *rgba);
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void rotate(uint first, uint last, bool forward);
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};
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struct Cnv : public Frames {
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uint16 _count; // # of frames
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uint16 _width; //
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uint16 _height; //
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byte** field_8; // unused
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byte* _data;
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bool _freeData;
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public:
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Cnv() {
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_width = _height = _count = 0;
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_data = NULL;
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}
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Cnv(uint16 numFrames, uint16 width, uint16 height, byte* data, bool freeData = false)
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: _count(numFrames), _width(width), _height(height), _data(data), _freeData(freeData) {
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}
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~Cnv() {
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if (_freeData)
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delete []_data;
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}
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byte* getFramePtr(uint16 index) {
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if (index >= _count)
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return NULL;
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return &_data[index * _width * _height];
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}
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uint16 getNum() {
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return _count;
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}
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byte *getData(uint16 index) {
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return getFramePtr(index);
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}
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void getRect(uint16 index, Common::Rect &r) {
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r.left = 0;
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r.top = 0;
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r.setWidth(_width);
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r.setHeight(_height);
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}
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uint getRawSize(uint16 index) {
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assert(index < _count);
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return getSize(index);
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}
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uint getSize(uint16 index) {
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assert(index < _count);
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return _width * _height;
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}
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};
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#define CENTER_LABEL_HORIZONTAL -1
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#define CENTER_LABEL_VERTICAL -1
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#define MAX_BALLOON_WIDTH 130
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class Parallaction;
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struct DoorData;
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struct GetData;
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struct Label;
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class Disk;
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enum {
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kGfxObjVisible = 1,
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kGfxObjNormal = 2,
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kGfxObjCharacter = 4,
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kGfxObjTypeDoor = 0,
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kGfxObjTypeGet = 1,
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kGfxObjTypeAnim = 2,
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kGfxObjTypeLabel = 3,
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kGfxObjTypeBalloon = 4,
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kGfxObjTypeCharacter = 8
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};
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enum {
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kGfxObjDoorZ = -200,
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kGfxObjGetZ = -100
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};
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class GfxObj {
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char *_name;
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Frames *_frames;
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bool _keep;
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public:
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int16 x, y;
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int32 z;
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uint32 _flags;
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uint type;
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uint frame;
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uint layer;
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uint transparentKey;
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uint scale;
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GfxObj(uint type, Frames *frames, const char *name = NULL);
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virtual ~GfxObj();
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const char *getName() const;
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uint getNum();
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void getRect(uint frame, Common::Rect &r);
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byte *getData(uint frame);
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uint getRawSize(uint frame);
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uint getSize(uint frame);
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void setFlags(uint32 flags);
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void clearFlags(uint32 flags);
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bool isVisible() {
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return (_flags & kGfxObjVisible) == kGfxObjVisible;
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}
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void release();
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};
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#define LAYER_FOREGROUND 3
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/*
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BackgroundInfo keeps information about the background bitmap that can be seen in the game.
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These bitmaps can be of any size, smaller or larger than the visible screen, the latter
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being the most common options.
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*/
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struct BackgroundInfo {
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int x, y; // used to display bitmaps smaller than the screen
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int width;
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int height;
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Graphics::Surface bg;
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MaskBuffer mask;
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PathBuffer path;
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Palette palette;
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int layers[4];
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PaletteFxRange ranges[6];
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bool hasMask;
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BackgroundInfo() : x(0), y(0), width(0), height(0), hasMask(false) {
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layers[0] = layers[1] = layers[2] = layers[3] = 0;
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memset(ranges, 0, sizeof(ranges));
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}
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void setPaletteRange(int index, const PaletteFxRange& range) {
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assert(index < 6);
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memcpy(&ranges[index], &range, sizeof(PaletteFxRange));
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}
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uint16 getLayer(uint16 z) {
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for (uint16 i = 0; i < 3; i++) {
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if (layers[i+1] > z) return i;
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}
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return LAYER_FOREGROUND;
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}
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~BackgroundInfo() {
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bg.free();
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mask.free();
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path.free();
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x = 0;
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y = 0;
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width = 0;
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height = 0;
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}
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};
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enum {
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kBackgroundLocation = 1,
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kBackgroundSlide = 2
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};
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class BalloonManager {
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public:
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enum TextColor {
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kSelectedColor = 0,
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kUnselectedColor = 1,
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kNormalColor = 2
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};
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virtual ~BalloonManager() { }
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virtual void freeBalloons() = 0;
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virtual int setLocationBalloon(const char *text, bool endGame) = 0;
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virtual int setDialogueBalloon(const char *text, uint16 winding, TextColor textColor) = 0;
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virtual int setSingleBalloon(const char *text, uint16 x, uint16 y, uint16 winding, TextColor textColor) = 0;
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virtual void setBalloonText(uint id, const char *text, TextColor textColor) = 0;
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virtual int hitTestDialogueBalloon(int x, int y) = 0;
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};
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typedef Common::HashMap<Common::String, int32, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> VarMap;
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typedef Common::Array<GfxObj*> GfxObjArray;
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class Gfx {
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protected:
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Parallaction* _vm;
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public:
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Disk *_disk;
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VarMap _vars;
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GfxObjArray _sceneObjects;
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GfxObj* loadAnim(const char *name);
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GfxObj* loadGet(const char *name);
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GfxObj* loadDoor(const char *name);
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void showGfxObj(GfxObj* obj, bool visible);
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void clearGfxObjects(uint filter);
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void sortScene();
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// labels
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void showFloatingLabel(uint label);
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void hideFloatingLabel();
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uint renderFloatingLabel(Font *font, char *text);
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uint createLabel(Font *font, const char *text, byte color);
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void showLabel(uint id, int16 x, int16 y);
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void hideLabel(uint id);
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void freeLabels();
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// dialogue balloons
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GfxObj* registerBalloon(Frames *frames, const char *text);
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void destroyBalloons();
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// other items
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int setItem(GfxObj* obj, uint16 x, uint16 y, byte transparentColor = 0);
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void setItemFrame(uint item, uint16 f);
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void freeItems();
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// background surface
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BackgroundInfo *_backgroundInfo;
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void setBackground(uint type, BackgroundInfo *info);
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void patchBackground(Graphics::Surface &surf, int16 x, int16 y, bool mask = false);
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void grabBackground(const Common::Rect& r, Graphics::Surface &dst);
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void fillBackground(const Common::Rect& r, byte color);
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void invertBackground(const Common::Rect& r);
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// palette
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void setPalette(Palette palette);
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void setBlackPalette();
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void animatePalette();
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// amiga specific
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void applyHalfbriteEffect_NS(Graphics::Surface &surf);
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void setHalfbriteMode(bool enable);
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void setProjectorPos(int x, int y);
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void setProjectorProgram(int16 *data);
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int16 *_nextProjectorPos;
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// init
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Gfx(Parallaction* vm);
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virtual ~Gfx();
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void beginFrame();
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void registerVar(const Common::String &name, int32 initialValue);
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void setVar(const Common::String &name, int32 value);
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int32 getVar(const Common::String &name);
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void clearScreen();
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void updateScreen();
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public:
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Palette _palette;
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byte *_unpackedBitmap;
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protected:
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bool _halfbrite;
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bool _skipBackground;
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Common::Point _hbCirclePos;
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int _hbCircleRadius;
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// BRA specific
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Palette _backupPal;
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// frame data stored in programmable variables
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int32 _varBackgroundMode; // 1 = normal, 2 = only mask
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int32 _varRenderMode;
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int32 _varDrawPathZones; // 0 = don't draw, 1 = draw
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Graphics::Surface _bitmapMask;
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int32 getRenderMode(const char *type);
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Graphics::Surface *lockScreen();
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void unlockScreen();
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void updateScreenIntern();
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bool _doubleBuffering;
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int _gameType;
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Graphics::Surface _backBuffer;
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void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
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int _scrollPos;
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int _minScroll, _maxScroll;
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// overlay mode enables drawing of graphics with automatic screen-to-game coordinate translation
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bool _overlayMode;
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void drawOverlay(Graphics::Surface &surf);
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public:
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#define MAX_NUM_LABELS 20
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#define NO_FLOATING_LABEL 1000
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GfxObjArray _labels;
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GfxObjArray _balloons;
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GfxObjArray _items;
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uint _floatingLabel;
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void drawInventory();
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void updateFloatingLabel();
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void drawList(Graphics::Surface &surface, GfxObjArray &list);
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void copyRect(const Common::Rect &r, Graphics::Surface &src, Graphics::Surface &dst);
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int getScrollPos();
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void setScrollPos(int scrollX);
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// low level text and patches
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void drawText(Font *font, Graphics::Surface* surf, uint16 x, uint16 y, const char *text, byte color);
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void drawGfxObject(GfxObj *obj, Graphics::Surface &surf);
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void blt(const Common::Rect& r, byte *data, Graphics::Surface *surf, uint16 z, uint scale, byte transparentColor);
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void unpackBlt(const Common::Rect& r, byte *data, uint size, Graphics::Surface *surf, uint16 z, uint scale, byte transparentColor);
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void bltMaskScale(const Common::Rect& r, byte *data, Graphics::Surface *surf, uint16 z, uint scale, byte transparentColor);
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void bltMaskNoScale(const Common::Rect& r, byte *data, Graphics::Surface *surf, uint16 z, byte transparentColor);
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void bltNoMaskNoScale(const Common::Rect& r, byte *data, Graphics::Surface *surf, byte transparentColor);
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};
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} // Parallaction
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#endif
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