winlivebg_test1

annotate src/main.c @ 2:a9025f31ae2d

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sortof works, testing with colcycle hack
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 28 Oct 2019 16:07:25 +0200
parents aa6a9521b088
children
rev   line source
nuclear@0 1 #include <stdio.h>
nuclear@0 2 #include <string.h>
nuclear@0 3 #include <windows.h>
nuclear@0 4 #include <GL/gl.h>
nuclear@0 5
nuclear@0 6 #define WCNAME "livebg_test"
nuclear@0 7
nuclear@2 8 int colcycle_init(void);
nuclear@2 9 void colcycle_cleanup(void);
nuclear@2 10 void colcycle_draw(long time_msec);
nuclear@2 11
nuclear@2 12 int scr_width, scr_height;
nuclear@2 13 long upd_interval;
nuclear@2 14
nuclear@0 15 void draw(void);
nuclear@0 16 HWND create_window(int width, int height);
nuclear@0 17 int init_gl(void);
nuclear@0 18 long CALLBACK handle_events(HWND win, unsigned int msg, WPARAM wparam, LPARAM lparam);
nuclear@0 19
nuclear@0 20 HWND win;
nuclear@0 21 HDC dc;
nuclear@0 22 HGLRC ctx;
nuclear@0 23 int wcreg, quit;
nuclear@0 24 unsigned long start_time;
nuclear@0 25
nuclear@0 26 int WINAPI WinMain(HINSTANCE hinst, HINSTANCE hprev, char *cmdline, int cmdshow)
nuclear@0 27 {
nuclear@0 28 MSG msg;
nuclear@0 29
nuclear@0 30 if(!(win = create_window(400, 300))) {
nuclear@0 31 return 1;
nuclear@0 32 }
nuclear@0 33 if(init_gl() == -1) {
nuclear@0 34 DestroyWindow(win);
nuclear@2 35 goto done;
nuclear@2 36 }
nuclear@2 37 if(colcycle_init() == -1) {
nuclear@2 38 wglMakeCurrent(0, 0);
nuclear@2 39 wglDeleteContext(ctx);
nuclear@2 40 DestroyWindow(win);
nuclear@2 41 goto done;
nuclear@0 42 }
nuclear@0 43
nuclear@0 44 start_time = timeGetTime();
nuclear@0 45
nuclear@0 46 for(;;) {
nuclear@0 47 while(PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
nuclear@0 48 TranslateMessage(&msg);
nuclear@0 49 DispatchMessage(&msg);
nuclear@0 50
nuclear@0 51 if(quit) goto done;
nuclear@0 52 }
nuclear@0 53
nuclear@0 54 draw();
nuclear@0 55 }
nuclear@0 56 done:
nuclear@0 57
nuclear@0 58 if(wcreg) {
nuclear@0 59 UnregisterClass(WCNAME, hinst);
nuclear@0 60 }
nuclear@0 61 return 0;
nuclear@0 62 }
nuclear@0 63
nuclear@0 64 void draw(void)
nuclear@0 65 {
nuclear@2 66 long now, wait_msec;
nuclear@2 67 long tmsec = timeGetTime() - start_time;
nuclear@0 68
nuclear@2 69 colcycle_draw(tmsec);
nuclear@0 70
nuclear@2 71 now = timeGetTime() - start_time;
nuclear@2 72 wait_msec = upd_interval / 1000 - (now - tmsec);
nuclear@2 73 if(wait_msec > 0) {
nuclear@2 74 fprintf(stderr, "wait_msec: %ld\n", wait_msec);
nuclear@2 75 Sleep(wait_msec);
nuclear@2 76 }
nuclear@0 77
nuclear@0 78 SwapBuffers(dc);
nuclear@0 79 }
nuclear@0 80
nuclear@0 81 HWND fadewin;
nuclear@0 82
nuclear@0 83 int CALLBACK match_win(HWND win, LPARAM lparam)
nuclear@0 84 {
nuclear@0 85 HWND shwin = FindWindowEx(win, 0, "SHELLDLL_DefView", 0);
nuclear@0 86 if(shwin) {
nuclear@0 87 fadewin = FindWindowEx(0, shwin, "WorkerW", 0);
nuclear@0 88 }
nuclear@0 89 return 1;
nuclear@0 90 }
nuclear@0 91
nuclear@0 92 HWND create_window(int width, int height)
nuclear@0 93 {
nuclear@0 94 HINSTANCE hinst;
nuclear@0 95 HWND win, parent = 0;
nuclear@0 96 HWND pgman_win;
nuclear@0 97 unsigned int style;
nuclear@0 98 RECT rect;
nuclear@0 99
nuclear@0 100 hinst = GetModuleHandle(0);
nuclear@0 101
nuclear@0 102 if(!wcreg) {
nuclear@0 103 WNDCLASSEX wc;
nuclear@0 104 memset(&wc, 0, sizeof wc);
nuclear@0 105 wc.cbSize = sizeof wc;
nuclear@0 106 wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
nuclear@0 107 wc.lpfnWndProc = handle_events;
nuclear@0 108 wc.hInstance = hinst;
nuclear@0 109 wc.hIcon = wc.hIconSm = LoadIcon(0, IDI_APPLICATION);
nuclear@0 110 wc.hCursor = LoadCursor(0, IDC_ARROW);
nuclear@0 111 wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
nuclear@0 112 wc.lpszClassName = WCNAME;
nuclear@0 113 RegisterClassEx(&wc);
nuclear@0 114 wcreg = 1;
nuclear@0 115 }
nuclear@0 116
nuclear@0 117 if((pgman_win = FindWindow("Progman", 0))) {
nuclear@0 118 parent = pgman_win;
nuclear@0 119 GetWindowRect(pgman_win, &rect);
nuclear@1 120 width = rect.right - rect.left;
nuclear@1 121 height = rect.bottom - rect.top;
nuclear@0 122
nuclear@0 123 /*
nuclear@0 124 SendMessage(pgman_win, 0x52c, 0, 0);
nuclear@0 125
nuclear@0 126 fadewin = 0;
nuclear@0 127 EnumWindows(match_win, 0);
nuclear@0 128 if(fadewin) {
nuclear@0 129 //ShowWindow(fadewin, 0);
nuclear@0 130 }
nuclear@0 131 */
nuclear@0 132 }
nuclear@0 133
nuclear@0 134 style = parent ? WS_CHILD : WS_POPUP;
nuclear@0 135 if(!(win = CreateWindow(WCNAME, WCNAME, style | WS_VISIBLE, 0, 0, width, height,
nuclear@0 136 parent, 0, hinst, 0))) {
nuclear@0 137 fprintf(stderr, "failed to create window\n");
nuclear@0 138 return 0;
nuclear@0 139 }
nuclear@0 140 dc = GetDC(win);
nuclear@2 141
nuclear@2 142 scr_width = width;
nuclear@2 143 scr_height = height;
nuclear@0 144 return win;
nuclear@0 145 }
nuclear@0 146
nuclear@0 147 int init_gl(void)
nuclear@0 148 {
nuclear@0 149 int pixfmt;
nuclear@0 150 PIXELFORMATDESCRIPTOR pfd;
nuclear@0 151
nuclear@0 152 memset(&pfd, 0, sizeof pfd);
nuclear@0 153 pfd.nSize = sizeof pfd;
nuclear@0 154 pfd.nVersion = 1;
nuclear@0 155 pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
nuclear@0 156 pfd.iPixelType = PFD_TYPE_RGBA;
nuclear@0 157 pfd.cColorBits = 24;
nuclear@0 158 pfd.cDepthBits = 32;
nuclear@0 159 pfd.iLayerType = PFD_MAIN_PLANE;
nuclear@0 160
nuclear@0 161 if(!(pixfmt = ChoosePixelFormat(dc, &pfd))) {
nuclear@0 162 fprintf(stderr, "failed to find a suitable pixel format\n");
nuclear@0 163 return -1;
nuclear@0 164 }
nuclear@0 165 SetPixelFormat(dc, pixfmt, &pfd);
nuclear@0 166
nuclear@0 167 if(!(ctx = wglCreateContext(dc))) {
nuclear@0 168 fprintf(stderr, "failed to create an OpenGL context\n");
nuclear@0 169 return -1;
nuclear@0 170 }
nuclear@0 171 wglMakeCurrent(dc, ctx);
nuclear@0 172 return 0;
nuclear@0 173 }
nuclear@0 174
nuclear@0 175 long CALLBACK handle_events(HWND win, unsigned int msg, WPARAM wparam, LPARAM lparam)
nuclear@0 176 {
nuclear@0 177 switch(msg) {
nuclear@0 178 case WM_PAINT:
nuclear@0 179 ValidateRect(win, 0);
nuclear@0 180 break;
nuclear@0 181
nuclear@0 182 case WM_CLOSE:
nuclear@2 183 colcycle_cleanup();
nuclear@2 184 wglMakeCurrent(0, 0);
nuclear@2 185 wglDeleteContext(ctx);
nuclear@0 186 DestroyWindow(win);
nuclear@0 187 break;
nuclear@0 188
nuclear@0 189 case WM_DESTROY:
nuclear@0 190 PostQuitMessage(0);
nuclear@0 191 break;
nuclear@0 192
nuclear@0 193 case WM_QUIT:
nuclear@0 194 quit = 1;
nuclear@0 195 break;
nuclear@0 196
nuclear@0 197 default:
nuclear@0 198 return DefWindowProc(win, msg, wparam, lparam);
nuclear@0 199 }
nuclear@0 200 return 0;
nuclear@0 201 }