Made changes to CMakeLists.txt so CUDA version of program builds when CUDA is installed.

Replaced C-style approach to generating texture to OOP-style with Canvas.h

2 files changed, 75 insertions, 0 deletions

diff --git a/Canvas/cpu/CalculateCanvas.cpp b/Canvas/cpu/CalculateCanvas.cpp
new file mode 100644
index 0000000..75a9996
--- /dev/null
+++ b/Canvas/cpu/CalculateCanvas.cpp
@@ -0,0 +1,60 @@
+//
+// Created by saintruler on 05.05.19.
+//
+#include "CalculateCanvas.h"
+
+void calculate(unsigned char* canvas, int width, Point* points, int nPoints, int canvasX, int canvasY)
+{
+    int pathX, pathY;
+    int length_squared;
+    double f = 0;
+
+    for (int i = 0; i < nPoints; i++)
+    {
+        pathX = points[i].x - canvasX;
+        pathY = points[i].y - canvasY;
+
+        length_squared = pathX * pathX + pathY * pathY;
+        f += (1e5 * 20) / (float) length_squared;
+    }
+
+    int l = (int) f;
+    if (l > 255) l = 255;
+
+    canvas[canvasY * width * 3 + canvasX * 3 + 0] = l;
+    canvas[canvasY * width * 3 + canvasX * 3 + 1] = 0;
+    canvas[canvasY * width * 3 + canvasX * 3 + 2] = 0;
+}
+
+//void calculate(unsigned char* canvas, int width, Point* points, int nPoints, int canvasX, int canvasY)
+//    point canvas_pt(canvasX, canvasY);
+//    double f = 0;
+//    for (point pt : points)
+//    {
+//        point path = pt - canvas_pt;
+//
+//        f += (1e5 * 20 * 1) / path.length_sqared();
+//    }
+//
+//    int l = (int) f;
+//    if (l > 255) l = 255;
+//
+//
+//    canvas[y * SCR_WIDTH * 3 + x * 3 + 0] = l;
+//    canvas[y * SCR_WIDTH * 3 + x * 3 + 1] = 0;
+//    canvas[y * SCR_WIDTH * 3 + x * 3 + 2] = 0;
+//}
+
+
+
+void generate_canvas(int width, int height, unsigned char* canvas, Point* points, int nPoints)
+{
+    for (int x = 0; x < width; x++)
+    {
+        for (int y = 0; y < height; y++)
+        {
+            calculate(canvas, width, points, nPoints, x, y);
+        }
+    }
+}
+
diff --git a/Canvas/cpu/CalculateCanvas.h b/Canvas/cpu/CalculateCanvas.h
new file mode 100644
index 0000000..c1a1662
--- /dev/null
+++ b/Canvas/cpu/CalculateCanvas.h
@@ -0,0 +1,15 @@
+//
+// Created by saintruler on 05.05.19.
+//
+
+#ifndef OPENGLTEST_CALCULATECANVAS_H
+#define OPENGLTEST_CALCULATECANVAS_H
+
+#include <Point.h>
+
+
+void calculate(unsigned char* canvas, int width, Point* points, int nPoints, int canvasX, int canvasY);
+
+void generate_canvas(int width, int height, unsigned char* canvas, Point* points, int nPoints);
+
+#endif //OPENGLTEST_CALCULATECANVAS_H