blob: 113b4dccf7ec2c4f0ffc4d941961f15b23858969 (
plain)
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
|
#ifndef RENDER_THREAD_H
#define RENDER_THREAD_H
#include "draw.hpp"
#include <qlabel.h>
#include <render.hpp>
#include <qobject.h>
#include <qrgb.h>
#include <qthread.h>
#include <qsemaphore.h>
#include <vector>
// https://doc.qt.io/archives/qt-4.8/qt-threads-mandelbrot-example.html
class RenderThread : public QThread {
Q_OBJECT
public:
RenderThread(Renderer r, QObject *parent = nullptr, unsigned id = 0);
// Returns 0 if successful or 1 if busy
int render(QRgb *buffer, unsigned samples);
unsigned current_samples();
signals:
void done(unsigned workerid);
protected:
void run();
QSemaphore m_lock;
QRgb *m_writebuffer;
unsigned m_samples;
unsigned m_current_samples;
Renderer m_render;
// Value in here means work is to be done
QSemaphore m_work;
unsigned m_id;
};
const std::string states[] = { "Stopped", "Running" };
enum State { stopped, running };
class RenderCoordinator : public QObject {
Q_OBJECT
public:
RenderCoordinator(QObject *parent, DrawWidget &target, Renderer r, QLabel *status=nullptr);
void setSamples(unsigned samples);
void render();
public slots:
void workerDone(unsigned workerid);
private slots:
void updateUi();
private:
DrawWidget &m_target;
Renderer m_renderer;
RenderThread m_worker;
QLabel *m_status;
QTimer m_timer;
State m_state;
unsigned m_samples;
};
#endif
|
