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
|
#include "rendercoord.hpp"
#include <qobject.h>
#include <iostream>
#include <qrgb.h>
#include <render.hpp>
uint32_t colorToUint32(Color &c) {
c.clamp();
return (0xFF << 24) +
(c.r() << 16) +
(c.g() << 8) +
c.b();
}
// Run by main thread
RenderThread::RenderThread(Renderer r, QObject *parent, unsigned id)
: QThread(parent),
m_lock(1),
m_render(r)
{
m_id = id;
}
// Run on new thread
void RenderThread::run() {
while (1) {
// Wait for work
m_work.acquire();
for (unsigned x = 0; x < m_render.m_width; x++) {
for (unsigned y = 0; y < m_render.m_height; y++) {
auto c = m_render.render(x, y);
m_writebuffer[x + y * m_render.m_height] =
static_cast<QRgb>(colorToUint32(c));
}
}
// Signal done
m_lock.release();
emit done(m_id);
}
}
int RenderThread::render(QRgb *buffer, unsigned samples) {
// Check if already running
if (!m_lock.tryAcquire()) {
return 1;
}
m_writebuffer = buffer;
m_samples = samples;
m_work.release();
return 0;
}
RenderCoordinator::RenderCoordinator(QObject *parent, DrawWidget &target, Renderer r)
: QObject(parent),
m_target(target),
m_renderer(r),
m_worker(m_renderer, this)
{
m_worker.start();
QObject::connect(&m_worker, &RenderThread::done,
this, &RenderCoordinator::workerDone);
m_worker.render(target.m_drawbuffer, 1);
}
void RenderCoordinator::workerDone(unsigned workerid) {
std::cout << workerid << " done!" << std::endl;
m_target.repaint();
}
|
