1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "bladerunner/shape.h"
24
25 #include "bladerunner/bladerunner.h"
26
27 #include "common/debug.h"
28 #include "common/ptr.h"
29 #include "common/util.h"
30
31 #include "graphics/surface.h"
32
33 namespace BladeRunner {
34
load(Common::SeekableReadStream * stream)35 bool Shape::load(Common::SeekableReadStream *stream) {
36 _width = stream->readUint32LE();
37 _height = stream->readUint32LE();
38 uint32 size = stream->readUint32LE();
39
40 if (size != (uint32)(_width * _height * 2)) {
41 warning("Shape::load size mismatch (w %d, h %d, sz %d)", _width, _height, size);
42 return false;
43 }
44
45 // Enfoce a reasonable size limit
46 if (_width >= 2048 || _height >= 2048) {
47 warning("Shape::load shape too big (%d, %d)", _width, _height);
48 }
49
50 _data = new byte[size];
51
52 if (stream->read(_data, size) != size) {
53 warning("Shape::load error reading shape (w %d, h %d, sz %d)", _width, _height, size);
54 return false;
55 }
56
57 return true;
58 }
59
~Shape()60 Shape::~Shape() {
61 delete[] _data;
62 }
63
draw(Graphics::Surface & surface,int x,int y) const64 void Shape::draw(Graphics::Surface &surface, int x, int y) const {
65 int src_x = CLIP(-x, 0, _width);
66 int src_y = CLIP(-y, 0, _height);
67
68 int dst_x = CLIP<int>(x, 0, surface.w);
69 int dst_y = CLIP<int>(y, 0, surface.h);
70
71 int rect_w = MIN(CLIP(_width + x, 0, _width), surface.w - x);
72 int rect_h = MIN(CLIP(_height + y, 0, _height), surface.h - y);
73
74 if (rect_w == 0 || rect_h == 0) {
75 return;
76 }
77
78 const uint8 *src_p = _data + 2 * (src_y * _width + src_x);
79
80 for (int yi = 0; yi != rect_h; ++yi) {
81 for (int xi = 0; xi != rect_w; ++xi) {
82 uint16 shpColor = READ_LE_UINT16(src_p);
83 src_p += 2;
84
85 uint8 a, r, g, b;
86 getGameDataColor(shpColor, a, r, g, b);
87
88 if (!a) {
89 // Ignore the alpha in the output as it is inversed in the input
90 void *dstPtr = surface.getBasePtr(CLIP(dst_x + xi, 0, surface.w - 1), CLIP(dst_y + yi, 0, surface.h - 1));
91 drawPixel(surface, dstPtr, surface.format.RGBToColor(r, g, b));
92 }
93 }
94 src_p += 2 * (_width - rect_w);
95 }
96 }
97
Shapes(BladeRunnerEngine * vm)98 Shapes::Shapes(BladeRunnerEngine *vm) {
99 _vm = vm;
100 }
101
~Shapes()102 Shapes::~Shapes() {
103 unload();
104 }
105
load(const Common::String & container)106 bool Shapes::load(const Common::String &container) {
107 unload();
108
109 Common::ScopedPtr<Common::SeekableReadStream> stream(_vm->getResourceStream(container));
110 if (!stream) {
111 warning("Shape::open failed to open '%s'", container.c_str());
112 return false;
113 }
114
115 uint32 count = stream->readUint32LE();
116
117 _shapes.resize(count);
118
119 for (uint32 i = 0; i < count; ++i) {
120 if (!_shapes[i].load(stream.get())) {
121 return false;
122 }
123 }
124
125 return true;
126 }
127
unload()128 void Shapes::unload() {
129 _shapes.clear();
130 }
131
132
133 } // End of namespace BladeRunner
134