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
|
/* 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/>.
*
*/
#ifndef STARK_VISUAL_IMAGE_H
#define STARK_VISUAL_IMAGE_H
#include "engines/stark/visual/visual.h"
#include "common/rect.h"
#include "common/stream.h"
namespace Graphics {
struct Surface;
}
namespace Stark {
namespace Gfx {
class Driver;
class SurfaceRenderer;
class Bitmap;
}
/**
* XMG (still image) renderer
*/
class VisualImageXMG : public Visual {
public:
static const VisualType TYPE = Visual::kImageXMG;
explicit VisualImageXMG(Gfx::Driver *gfx);
~VisualImageXMG() override;
/**
* Load the pixel data from a XMG image
*/
void load(Common::ReadStream *stream);
/**
* Load the size from an XMG image
*/
void readOriginalSize(Common::ReadStream *stream);
/**
* Load the pixel data from a PNG image
*/
bool loadPNG(Common::SeekableReadStream *stream);
void render(const Common::Point &position, bool useOffset);
void render(const Common::Point &position, bool useOffset, bool unscaled);
/** Set an offset used when rendering */
void setHotSpot(const Common::Point &hotspot);
Common::Point getHotspot() const { return _hotspot; }
/**
* The fade level is added to the color value of each pixel
*
* It is a value between -1 and 1
*/
void setFadeLevel(float fadeLevel);
/** Perform a transparency hit test on an image point */
bool isPointSolid(const Common::Point &point) const;
/** Get the width in pixels */
int getWidth() const;
/** Get the height in pixels */
int getHeight() const;
/** Get a read only pointer to the surface backing the image */
const Graphics::Surface *getSurface() const;
private:
Graphics::Surface *multiplyColorWithAlpha(const Graphics::Surface *source);
Gfx::Driver *_gfx;
Gfx::SurfaceRenderer *_surfaceRenderer;
Gfx::Bitmap *_bitmap;
Graphics::Surface *_surface;
Common::Point _hotspot;
uint _originalWidth;
uint _originalHeight;
};
} // End of namespace Stark
#endif // STARK_VISUAL_IMAGE_H
|
