Adding Project Files

2019-12-07 16:16:40 +02:00
parent 97f90ab8c9
commit f5d3196828
18 changed files with 1891 additions and 0 deletions
@@ -0,0 +1,112 @@
+#include "util_window.h"
+#include <cmath>
+
+const char* wnd_class_name = "Renderer To-Be";
+void* pixels;
+char* pixel_data;
+BITMAPINFO info;
+HBITMAP hbm;
+const int BITCOUNT_PER_PIXEL = 24;
+const int title_height = 39;
+int screen_width = 0;
+int screen_height = 0;
+long long bytes_per_row;
+bool screen_changed = false;
+HDC hdc;
+HDRAWDIB hdd;
+HDC bitmap_dc;
+HGDIOBJ old_obj;
+
+HWND create_window(int width, int height, HINSTANCE &hInstance) {
+	HWND hWnd;
+	WNDCLASSEX wnd_class = { 0 };
+	init_wnd_class(wnd_class, hInstance);
+
+	RegisterClassEx(&wnd_class);
+
+	screen_width = width;
+	screen_height = height;
+	create_hwnd(hWnd, hInstance);
+	init(hWnd);
+
+	return hWnd;
+}
+
+void init(HWND &hWnd) {
+   memset(&info, 0, sizeof(info));
+   info.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+   info.bmiHeader.biWidth = screen_width;
+   info.bmiHeader.biHeight = screen_height;
+   info.bmiHeader.biPlanes = 1;
+   info.bmiHeader.biBitCount = BITCOUNT_PER_PIXEL;
+   info.bmiHeader.biCompression = BI_RGB;
+
+   hdc = GetDC(hWnd);
+   pixels = NULL;
+   hbm = CreateDIBSection(hdc, &info, DIB_RGB_COLORS, &pixels, NULL, 0);
+   pixel_data = (char*)pixels;
+
+   hdd = DrawDibOpen();
+
+   bitmap_dc = CreateCompatibleDC(hdc);
+   old_obj = SelectObject(bitmap_dc, hbm);
+   bytes_per_row = ceil(screen_width * 0.03) * 100;
+}
+
+void create_hwnd(HWND &hwnd, HINSTANCE &hInstance)
+{
+	hwnd = CreateWindowEx(
+		WS_EX_CLIENTEDGE,
+		TEXT(wnd_class_name),
+      TEXT("Renderer To-be"),  // window caption
+      WS_OVERLAPPEDWINDOW,      // window style
+      0,            // initial x position
+      0,            // initial y position
+      screen_width + 16,            // Some weird horizontal dead pixels
+	  screen_height + title_height,
+      NULL,                     // parent window handle
+      NULL,                     // window menu handle
+      hInstance,                // program instance handle
+      NULL);                    // creation parameters
+}
+
+void init_wnd_class(WNDCLASSEX &wndClass, HINSTANCE &hInstance) {
+	wndClass.cbSize = sizeof(WNDCLASSEX);
+	wndClass.style = 0;
+	wndClass.lpfnWndProc = WndProc;
+	wndClass.cbClsExtra = 0;
+	wndClass.cbWndExtra = 0;
+	wndClass.hInstance = hInstance;
+	wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+	wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
+	wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
+	wndClass.lpszMenuName = NULL;
+	wndClass.lpszClassName = TEXT(wnd_class_name);
+	wndClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
+}
+
+void destroy_window() {
+		DrawDibEnd(hdd);
+		DrawDibClose(hdd);
+		SelectObject(bitmap_dc, old_obj);
+		DeleteDC(hdc);
+		DeleteDC(bitmap_dc);
+		DeleteObject(hbm);
+		DeleteObject(old_obj);
+}
+
+
+void set_pixel(unsigned int x, unsigned int y, unsigned int color) {
+	unsigned long pixel_index = y * bytes_per_row + x * 3;
+
+	pixel_data[pixel_index + 0] = (char)(color >>  0);
+	pixel_data[pixel_index + 1] = (char)(color >>  8);
+	pixel_data[pixel_index + 2] = (char)(color >> 16);
+
+	if (!screen_changed)
+		screen_changed = true;
+}
+
+void Update() {
+   DrawDibDraw(hdd, hdc, 0, 0, screen_width, screen_height, &info.bmiHeader, pixels, 0, 0, screen_width, screen_height, 0);
+}