clsPng.h
960 Bytes
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
#pragma once
namespace DmapCore_30
{
class pattern_src_brightness_to_alpha_rgba8
{
private:
agg::rendering_buffer* m_rb;
pixfmt m_pf;
public:
pattern_src_brightness_to_alpha_rgba8(agg::rendering_buffer& rb) :
m_rb(&rb), m_pf(*m_rb) {}
unsigned width() const { return m_pf.width(); }
unsigned height() const { return m_pf.height(); }
agg::rgba8 pixel(int x, int y) const
{
agg::rgba8 c = m_pf.pixel(x, y);
// c.a = brightness_to_alpha[c.r + c.g + c.b]; //stbstb
// c.r=255;
// c.g=255;
// c.b=255;
c.a = 255; //brightness_to_alpha[c.r + c.g + c.b];
return c;
}
};
class clsPng
{
public:
clsPng(void);
public:
~clsPng(void);
//unsigned long width,height;
//int channels;
unsigned char *b;
public:
int ReadPng(const char * fileName, unsigned int colorThis);
private:
agg::pattern_filter_bilinear_rgba8 fltr;
public:
agg::line_image_pattern<agg::pattern_filter_bilinear_rgba8> *patta;
};
}