1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* 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.
*
*/
#include "sherlock/surface.h"
#include "sherlock/sherlock.h"
#include "sherlock/resources.h"
#include "common/system.h"
#include "graphics/palette.h"
namespace Sherlock {
Surface::Surface(uint16 width, uint16 height) : _freePixels(true) {
create(width, height);
}
Surface::Surface() : _freePixels(false) {
}
Surface::~Surface() {
if (_freePixels)
_surface.free();
}
void Surface::create(uint16 width, uint16 height) {
if (_freePixels)
_surface.free();
_surface.create(width, height, Graphics::PixelFormat::createFormatCLUT8());
_freePixels = true;
}
void Surface::blitFrom(const Surface &src) {
blitFrom(src, Common::Point(0, 0));
}
void Surface::blitFrom(const ImageFrame &src) {
blitFrom(src._frame, Common::Point(0, 0));
}
void Surface::blitFrom(const Graphics::Surface &src) {
blitFrom(src, Common::Point(0, 0));
}
void Surface::blitFrom(const Surface &src, const Common::Point &pt) {
blitFrom(src, pt, Common::Rect(0, 0, src._surface.w, src._surface.h));
}
void Surface::blitFrom(const ImageFrame &src, const Common::Point &pt) {
blitFrom(src._frame, pt, Common::Rect(0, 0, src._frame.w, src._frame.h));
}
void Surface::blitFrom(const Graphics::Surface &src, const Common::Point &pt) {
blitFrom(src, pt, Common::Rect(0, 0, src.w, src.h));
}
void Surface::blitFrom(const Graphics::Surface &src, const Common::Point &pt, const Common::Rect &srcBounds) {
Common::Rect srcRect = srcBounds;
Common::Rect destRect(pt.x, pt.y, pt.x + srcRect.width(), pt.y + srcRect.height());
if (srcRect.isValidRect() && clip(srcRect, destRect)) {
// Surface is at least partially or completely on-screen
addDirtyRect(destRect);
_surface.copyRectToSurface(src, destRect.left, destRect.top, srcRect);
}
}
void Surface::blitFrom(const ImageFrame &src, const Common::Point &pt, const Common::Rect &srcBounds) {
blitFrom(src._frame, pt, srcBounds);
}
void Surface::blitFrom(const Surface &src, const Common::Point &pt, const Common::Rect &srcBounds) {
blitFrom(src._surface, pt, srcBounds);
}
void Surface::transBlitFrom(const ImageFrame &src, const Common::Point &pt,
bool flipped, int overrideColor) {
transBlitFrom(src._frame, pt + src._offset, flipped, overrideColor);
}
void Surface::transBlitFrom(const Graphics::Surface &src, const Common::Point &pt,
bool flipped, int overrideColor) {
Common::Rect drawRect(0, 0, src.w, src.h);
Common::Rect destRect(pt.x, pt.y, pt.x + src.w, pt.y + src.h);
// Clip the display area to on-screen
if (!clip(drawRect, destRect))
// It's completely off-screen
return;
if (flipped)
drawRect = Common::Rect(src.w - drawRect.right, src.h - drawRect.bottom,
src.w - drawRect.left, src.h - drawRect.top);
Common::Point destPt(destRect.left, destRect.top);
addDirtyRect(Common::Rect(destPt.x, destPt.y, destPt.x + drawRect.width(),
destPt.y + drawRect.height()));
// Draw loop
const int TRANSPARENCY = 0xFF;
for (int yp = 0; yp < drawRect.height(); ++yp) {
const byte *srcP = (const byte *)src.getBasePtr(
flipped ? drawRect.right - 1 : drawRect.left, drawRect.top + yp);
byte *destP = (byte *)getBasePtr(destPt.x, destPt.y + yp);
for (int xp = 0; xp < drawRect.width(); ++xp, ++destP) {
if (*srcP != TRANSPARENCY)
*destP = overrideColor ? overrideColor : *srcP;
srcP = flipped ? srcP - 1 : srcP + 1;
}
}
}
void Surface::fillRect(int x1, int y1, int x2, int y2, byte color) {
fillRect(Common::Rect(x1, y1, x2, y2), color);
}
void Surface::fillRect(const Common::Rect &r, byte color) {
_surface.fillRect(r, color);
addDirtyRect(r);
}
bool Surface::clip(Common::Rect &srcBounds, Common::Rect &destBounds) {
if (destBounds.left >= _surface.w || destBounds.top >= _surface.h ||
destBounds.right <= 0 || destBounds.bottom <= 0)
return false;
// Clip the bounds if necessary to fit on-screen
if (destBounds.right > _surface.w) {
srcBounds.right -= destBounds.right - _surface.w;
destBounds.right = _surface.w;
}
if (destBounds.bottom > _surface.h) {
srcBounds.bottom -= destBounds.bottom - _surface.h;
destBounds.bottom = _surface.h;
}
if (destBounds.top < 0) {
srcBounds.top += -destBounds.top;
destBounds.top = 0;
}
if (destBounds.left < 0) {
srcBounds.left += -destBounds.left;
destBounds.left = 0;
}
return true;
}
void Surface::clear() {
fillRect(Common::Rect(0, 0, _surface.w, _surface.h), 0);
}
void Surface::free() {
if (_freePixels) {
_surface.free();
_freePixels = false;
}
}
void Surface::setPixels(byte *pixels, int width, int height) {
_surface.format = Graphics::PixelFormat::createFormatCLUT8();
_surface.w = _surface.pitch = width;
_surface.h = height;
_surface.setPixels(pixels);
}
} // End of namespace Sherlock
|
