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
|
/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "engines/stark/gfx/driver.h"
#include "engines/stark/gfx/opengl.h"
#include "engines/stark/gfx/opengls.h"
#include "engines/stark/gfx/tinygl.h"
#include "engines/stark/services/services.h"
#include "engines/stark/services/settings.h"
#include "common/config-manager.h"
#include "graphics/renderer.h"
#include "graphics/surface.h"
#if defined(USE_OPENGL_GAME) || defined(USE_OPENGL_SHADERS)
#include "graphics/opengl/context.h"
#endif
#include "gui/error.h"
#include "engines/util.h"
namespace Stark {
namespace Gfx {
Driver *Driver::create() {
Common::String rendererConfig = ConfMan.get("renderer");
Graphics::RendererType desiredRendererType = Graphics::Renderer::parseTypeCode(rendererConfig);
Graphics::RendererType matchingRendererType = Graphics::Renderer::getBestMatchingAvailableType(desiredRendererType,
#if defined(USE_OPENGL_GAME)
Graphics::kRendererTypeOpenGL |
#endif
#if defined(USE_OPENGL_SHADERS)
Graphics::kRendererTypeOpenGLShaders |
#endif
#if defined(USE_TINYGL)
Graphics::kRendererTypeTinyGL |
#endif
0);
bool softRenderer = matchingRendererType == Graphics::kRendererTypeTinyGL;
if (!softRenderer) {
initGraphics3d(kOriginalWidth, kOriginalHeight);
} else {
initGraphics(kOriginalWidth, kOriginalHeight, nullptr);
}
#if defined(USE_OPENGL_SHADERS)
if (matchingRendererType == Graphics::kRendererTypeOpenGLShaders) {
return new OpenGLSDriver();
}
#endif
#if defined(USE_OPENGL_GAME)
if (matchingRendererType == Graphics::kRendererTypeOpenGL) {
return new OpenGLDriver();
}
#endif
#if defined(USE_TINYGL)
if (matchingRendererType == Graphics::kRendererTypeTinyGL) {
return new TinyGLDriver();
}
#endif
/* We should never end up here, getBestMatchingRendererType would have failed before */
error("Unable to create a renderer");
}
const Graphics::PixelFormat Driver::getRGBAPixelFormat() {
#ifdef SCUMM_BIG_ENDIAN
return Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0);
#else
return Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24);
#endif
}
bool Driver::computeScreenViewport() {
int32 screenWidth = g_system->getWidth();
int32 screenHeight = g_system->getHeight();
Common::Rect viewport;
if (g_system->getFeatureState(OSystem::kFeatureAspectRatioCorrection)) {
// Aspect ratio correction
int32 viewportWidth = MIN<int32>(screenWidth, screenHeight * kOriginalWidth / kOriginalHeight);
int32 viewportHeight = MIN<int32>(screenHeight, screenWidth * kOriginalHeight / kOriginalWidth);
viewport = Common::Rect(viewportWidth, viewportHeight);
// Pillarboxing
viewport.translate((screenWidth - viewportWidth) / 2,
(screenHeight - viewportHeight) / 2);
} else {
// Aspect ratio correction disabled, just stretch
viewport = Common::Rect(screenWidth, screenHeight);
}
if (viewport == _screenViewport) {
return false;
}
_screenViewport = viewport;
return true;
}
Common::Rect Driver::gameViewport() const {
Common::Rect game = Common::Rect(_screenViewport.width(), _screenViewport.height() * kGameViewportHeight / kOriginalHeight);
game.translate(_screenViewport.left, _screenViewport.top + _screenViewport.height() * kTopBorderHeight / kOriginalHeight);
return game;
}
Common::Point Driver::convertCoordinateCurrentToOriginal(const Common::Point &point) const {
// Most of the engine expects 640x480 coordinates
Common::Point scaledPosition = point;
scaledPosition.x -= _screenViewport.left;
scaledPosition.y -= _screenViewport.top;
scaledPosition.x = CLIP<int16>(scaledPosition.x, 0, _screenViewport.width());
scaledPosition.y = CLIP<int16>(scaledPosition.y, 0, _screenViewport.height());
scaledPosition.x *= kOriginalWidth / (float)_screenViewport.width();
scaledPosition.y *= kOriginalHeight / (float)_screenViewport.height();
return scaledPosition;
}
uint Driver::scaleWidthOriginalToCurrent(uint width) const {
return _screenViewport.width() * width / kOriginalWidth;
}
uint Driver::scaleHeightOriginalToCurrent(uint height) const {
return _screenViewport.height() * height / kOriginalHeight;
}
uint Driver::scaleWidthCurrentToOriginal(uint width) const {
return kOriginalWidth * width / _screenViewport.width();
}
uint Driver::scaleHeightCurrentToOriginal(uint height) const {
return kOriginalHeight * height / _screenViewport.height();
}
void Driver::flipVertical(Graphics::Surface *s) {
for (int y = 0; y < s->h / 2; ++y) {
// Flip the lines
byte *line1P = (byte *)s->getBasePtr(0, y);
byte *line2P = (byte *)s->getBasePtr(0, s->h - y - 1);
for (int x = 0; x < s->pitch; ++x)
SWAP(line1P[x], line2P[x]);
}
}
bool Driver::isPosInScreenBounds(const Common::Point &point) const {
return _screenViewport.contains(point);
}
} // End of namespace Gfx
} // End of namespace Stark
|
