From 4348cc9581bfea05359485c5d2d074132d0271da Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Thu, 6 Aug 2020 19:21:49 +0200
Subject: Renders scenes with a single hardcoded light and green objects

---
 app/rendercoord.cpp | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 app/rendercoord.cpp

(limited to 'app/rendercoord.cpp')

diff --git a/app/rendercoord.cpp b/app/rendercoord.cpp
new file mode 100644
index 0000000..8db7c97
--- /dev/null
+++ b/app/rendercoord.cpp
@@ -0,0 +1,75 @@
+#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();
+}
+
-- 
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