# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1571270047 -10800
# Node ID d6d7915573306cd8eeed8602b935b3d8f592817d

initial commit

diff -r 000000000000 -r d6d791557330 .hgignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgignore	Thu Oct 17 02:54:07 2019 +0300
@@ -0,0 +1,4 @@
+\.swp
+\.d
+\.o
+\.exe
diff -r 000000000000 -r d6d791557330 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Thu Oct 17 02:54:07 2019 +0300
@@ -0,0 +1,13 @@
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+bin = test.exe
+
+CFLAGS = -pedantic -Wall -g
+LDFLAGS = -mwindows -lopengl32 -lwinmm
+
+$(bin): $(obj)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin)
diff -r 000000000000 -r d6d791557330 src/main.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main.c	Thu Oct 17 02:54:07 2019 +0300
@@ -0,0 +1,188 @@
+#include <stdio.h>
+#include <string.h>
+#include <windows.h>
+#include <GL/gl.h>
+
+#define WCNAME	"livebg_test"
+
+void draw(void);
+HWND create_window(int width, int height);
+int init_gl(void);
+long CALLBACK handle_events(HWND win, unsigned int msg, WPARAM wparam, LPARAM lparam);
+
+HWND win;
+HDC dc;
+HGLRC ctx;
+int wcreg, quit;
+unsigned long start_time;
+
+int WINAPI WinMain(HINSTANCE hinst, HINSTANCE hprev, char *cmdline, int cmdshow)
+{
+	MSG msg;
+
+	if(!(win = create_window(400, 300))) {
+		return 1;
+	}
+	if(init_gl() == -1) {
+		DestroyWindow(win);
+		return 1;
+	}
+
+	start_time = timeGetTime();
+
+	for(;;) {
+		while(PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
+			TranslateMessage(&msg);
+			DispatchMessage(&msg);
+
+			if(quit) goto done;
+		}
+
+		draw();
+		Sleep(10);
+	}
+done:
+
+	if(wcreg) {
+		UnregisterClass(WCNAME, hinst);
+	}
+	return 0;
+}
+
+void draw(void)
+{
+	float tm = (timeGetTime() - start_time) / 1000.0f;
+	glClearColor(0.1, 0.1, 0.1, 1);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glRotatef(tm * 10.0f, 0, 0, 1);
+
+	glBegin(GL_TRIANGLES);
+	glColor3f(1, 0, 0);
+	glVertex2f(-0.5, -0.5);
+	glColor3f(0, 1, 0);
+	glVertex2f(0.5, -0.5);
+	glColor3f(0, 0, 1);
+	glVertex2f(0, 0.68);
+	glEnd();
+
+	SwapBuffers(dc);
+}
+
+HWND fadewin;
+
+int CALLBACK match_win(HWND win, LPARAM lparam)
+{
+	HWND shwin = FindWindowEx(win, 0, "SHELLDLL_DefView", 0);
+	if(shwin) {
+		fadewin = FindWindowEx(0, shwin, "WorkerW", 0);
+	}
+	return 1;
+}
+
+HWND create_window(int width, int height)
+{
+	HINSTANCE hinst;
+	HWND win, parent = 0;
+	HWND pgman_win;
+	unsigned int style;
+	RECT rect;
+
+	hinst = GetModuleHandle(0);
+
+	if(!wcreg) {
+		WNDCLASSEX wc;
+		memset(&wc, 0, sizeof wc);
+		wc.cbSize = sizeof wc;
+		wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
+		wc.lpfnWndProc = handle_events;
+		wc.hInstance = hinst;
+		wc.hIcon = wc.hIconSm = LoadIcon(0, IDI_APPLICATION);
+		wc.hCursor = LoadCursor(0, IDC_ARROW);
+		wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
+		wc.lpszClassName = WCNAME;
+		RegisterClassEx(&wc);
+		wcreg = 1;
+	}
+
+	if((pgman_win = FindWindow("Progman", 0))) {
+		parent = pgman_win;
+		GetWindowRect(pgman_win, &rect);
+		//width = rect.right - rect.left;
+		//height = rect.bottom - rect.top;
+
+		/*
+		SendMessage(pgman_win, 0x52c, 0, 0);
+
+		fadewin = 0;
+		EnumWindows(match_win, 0);
+		if(fadewin) {
+			//ShowWindow(fadewin, 0);
+		}
+		*/
+	}
+
+	style = parent ? WS_CHILD : WS_POPUP;
+	if(!(win = CreateWindow(WCNAME, WCNAME, style | WS_VISIBLE, 0, 0, width, height,
+					parent, 0, hinst, 0))) {
+		fprintf(stderr, "failed to create window\n");
+		return 0;
+	}
+	dc = GetDC(win);
+	return win;
+}
+
+int init_gl(void)
+{
+	int pixfmt;
+	PIXELFORMATDESCRIPTOR pfd;
+
+	memset(&pfd, 0, sizeof pfd);
+	pfd.nSize = sizeof pfd;
+	pfd.nVersion = 1;
+	pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+	pfd.iPixelType = PFD_TYPE_RGBA;
+	pfd.cColorBits = 24;
+	pfd.cDepthBits = 32;
+	pfd.iLayerType = PFD_MAIN_PLANE;
+
+	if(!(pixfmt = ChoosePixelFormat(dc, &pfd))) {
+		fprintf(stderr, "failed to find a suitable pixel format\n");
+		return -1;
+	}
+	SetPixelFormat(dc, pixfmt, &pfd);
+
+	if(!(ctx = wglCreateContext(dc))) {
+		fprintf(stderr, "failed to create an OpenGL context\n");
+		return -1;
+	}
+	wglMakeCurrent(dc, ctx);
+	return 0;
+}
+
+long CALLBACK handle_events(HWND win, unsigned int msg, WPARAM wparam, LPARAM lparam)
+{
+	switch(msg) {
+	case WM_PAINT:
+		ValidateRect(win, 0);
+		break;
+
+	case WM_CLOSE:
+		DestroyWindow(win);
+		break;
+
+	case WM_DESTROY:
+		PostQuitMessage(0);
+		break;
+
+	case WM_QUIT:
+		quit = 1;
+		break;
+
+	default:
+		return DefWindowProc(win, msg, wparam, lparam);
+	}
+	return 0;
+}