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boinc/api/graphics2_win.cpp

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2010 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// Event loop and support functions for Windows versions
// of BOINC applications w/ graphics.
// Platform-independent code should NOT be here.
//
#if defined(_WIN32) && !defined(__STDWX_H__) && !defined(_BOINC_WIN_) && !defined(_AFX_STDAFX_H_)
#include "boinc_win.h"
#else
#include "config.h"
#endif
#include "app_ipc.h"
#include "boinc_api.h"
#include "diagnostics.h"
#include "filesys.h"
#include "graphics2.h"
#include "str_replace.h"
#include "str_util.h"
#include "util.h"
#define BOINC_WINDOW_CLASS_NAME "BOINC_app"
#define WM_SHUTDOWNGFX WM_USER+1
static HDC win_dc = NULL;
static HGLRC gl_dc = NULL;
static HWND window = NULL;
static HINSTANCE instance;
static RECT rect = {50, 50, 50+640, 50+480};
static int current_graphics_mode = MODE_HIDE_GRAPHICS;
static POINT mousePos;
static bool visible = true;
static bool window_ready = false;
static UINT_PTR gfx_timer_id = 0;
static bool fullscreen;
void boinc_close_window_and_quit(const char* p) {
char buf[256];
fprintf(stderr, "%s Close event (%s) detected, shutting down.\n",
boinc_msg_prefix(buf, sizeof(buf)), p
);
window_ready = false;
wglMakeCurrent(NULL, NULL); // release GL rendering context, if any
if (gl_dc) {
wglDeleteContext(gl_dc);
}
if (window && win_dc) {
ReleaseDC(window, win_dc);
}
if (window) {
DestroyWindow(window);
}
}
void SetupPixelFormat(HDC win_dc) {
int nPixelFormat;
char buf[256];
static PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), // size of structure.
1, // always 1.
PFD_DRAW_TO_WINDOW | // support window
PFD_SUPPORT_OPENGL | // support OpenGl
PFD_DOUBLEBUFFER, // support double buffering
PFD_TYPE_RGBA, // support RGBA
32, // 32 bit color mode
0, 0, 0, 0, 0, 0, // ignore color bits
0, // no alpha buffer
0, // ignore shift bit
0, // no accumulation buffer
0, 0, 0, 0, // ignore accumulation bits.
16, // number of depth buffer bits.
0, // number of stencil buffer bits.
0, // 0 means no auxiliary buffer
PFD_MAIN_PLANE, // The main drawing plane
0, // this is reserved
0, 0, 0 // layer masks ignored.
};
// chooses the best pixel format
//
nPixelFormat = ChoosePixelFormat(win_dc, &pfd);
// set pixel format to device context.
//
if (!SetPixelFormat(win_dc, nPixelFormat, &pfd)) {
fprintf(stderr,
"%s ERROR: Couldn't set pixel format for device context (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
}
}
static void make_window(const char* title) {
RECT WindowRect = {0,0,0,0};
int width, height;
DWORD dwExStyle;
DWORD dwStyle;
char buf[256];
if (fullscreen) {
HDC screenDC=GetDC(NULL);
WindowRect.left = WindowRect.top = 0;
WindowRect.right=GetDeviceCaps(screenDC, HORZRES);
WindowRect.bottom=GetDeviceCaps(screenDC, VERTRES);
ReleaseDC(NULL, screenDC);
dwExStyle=WS_EX_TOPMOST;
dwStyle=WS_POPUP;
while(ShowCursor(false) >= 0);
} else {
// Version 5 screensaver logic kills all MODE_WINDOW graphics
// before starting one in fullscreen mode,
// then restarts the ones it killed when screensaver stops.
// To be compatible with V5,
// we remember and restore the MODE_WINDOW dimensions.
//
FILE *f = boinc_fopen("gfx_info", "r");
if (f) {
// ToDo: change this to XML parsing
fscanf(f, "%d %d %d %d\n",
&rect.left, &rect.top, &rect.right, &rect.bottom
);
fclose(f);
}
WindowRect = rect;
dwExStyle=WS_EX_APPWINDOW|WS_EX_WINDOWEDGE;
dwStyle=WS_OVERLAPPEDWINDOW;
while(ShowCursor(true) < 0);
}
char window_title[256];
if (title) {
strlcpy(window_title, title, sizeof(window_title));
} else {
APP_INIT_DATA aid;
boinc_get_init_data(aid);
if (!strlen(aid.app_name)) {
strlcpy(aid.app_name, "BOINC Application", sizeof(aid.app_name));
}
get_window_title(window_title, 256);
}
//fprintf(stderr, "Setting window title to '%s'.\n", window_title);
window = CreateWindowEx(dwExStyle, BOINC_WINDOW_CLASS_NAME, window_title,
dwStyle|WS_CLIPSIBLINGS|WS_CLIPCHILDREN, WindowRect.left, WindowRect.top,
WindowRect.right-WindowRect.left,WindowRect.bottom-WindowRect.top,
NULL, NULL, instance, NULL
);
if (!SetForegroundWindow(window)) {
fprintf(stderr,
"%s ERROR: SetForegroundWindow() failed (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
}
if (!GetCursorPos(&mousePos)) {
fprintf(stderr,
"%s ERROR: GetCursorPos() failed (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
}
win_dc = GetDC(window);
if (!win_dc) {
fprintf(stderr,
"%s ERROR: GetDC() failed (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
}
SetupPixelFormat(win_dc);
gl_dc = wglCreateContext(win_dc);
if (!gl_dc) {
fprintf(stderr,
"%s ERROR: wglCreateContext() failed (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
ReleaseDC(window, win_dc);
return;
}
if(!wglMakeCurrent(win_dc, gl_dc)) {
fprintf(stderr,
"%s ERROR: wglMakeCurrent() failed (0x%x).\n",
boinc_msg_prefix(buf, sizeof(buf)), GetLastError()
);
ReleaseDC(window, win_dc);
wglDeleteContext(gl_dc);
return;
}
// use client area for resize when not fullscreen
if (current_graphics_mode != MODE_FULLSCREEN) {
GetClientRect(window, &WindowRect);
}
width = WindowRect.right-WindowRect.left;
height = WindowRect.bottom-WindowRect.top;
ShowWindow(window, SW_SHOW);
SetFocus(window);
app_graphics_init();
app_graphics_resize(width, height);
window_ready=true;
}
void parse_mouse_event(UINT uMsg, int& which, bool& down) {
switch(uMsg) {
case WM_LBUTTONDOWN: which = 0; down = true; break;
case WM_MBUTTONDOWN: which = 1; down = true; break;
case WM_RBUTTONDOWN: which = 2; down = true; break;
case WM_LBUTTONUP: which = 0; down = false; break;
case WM_MBUTTONUP: which = 1; down = false; break;
case WM_RBUTTONUP: which = 2; down = false; break;
}
}
// message handler (includes timer, Windows msgs)
//
LRESULT CALLBACK WndProc(
HWND hWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
) {
switch(uMsg) {
case WM_ERASEBKGND:
return 0;
case WM_KEYDOWN:
if(!window_ready) return 0;
if (fullscreen) {
boinc_close_window_and_quit("key down");
} else {
boinc_app_key_press((int)wParam, (int)lParam);
}
return 0;
case WM_KEYUP:
if(!window_ready) return 0;
if (fullscreen) {
boinc_close_window_and_quit("key up");
} else {
boinc_app_key_release((int)wParam, (int)lParam);
}
return 0;
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
if(!window_ready) return 0;
if (fullscreen) {
boinc_close_window_and_quit("button up");
} else {
int which;
bool down;
parse_mouse_event(uMsg, which, down);
boinc_app_mouse_button(
(int)(short)LOWORD(lParam), (int)(short)HIWORD(lParam),
which, down
);
}
return 0;
case WM_MOUSEMOVE:
if(!window_ready) return 0;
if (fullscreen) {
if((int)(short)LOWORD(lParam) != mousePos.x || (int)(short)HIWORD(lParam) != mousePos.y) {
boinc_close_window_and_quit("mouse move");
}
} else {
boinc_app_mouse_move(
(int)(short)LOWORD(lParam), (int)(short)HIWORD(lParam),
(wParam&MK_LBUTTON)!=0,
(wParam&MK_MBUTTON)!=0,
(wParam&MK_RBUTTON)!=0
);
}
return 0;
case WM_CLOSE:
boinc_close_window_and_quit("WM_CLOSE");
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_SHUTDOWNGFX:
CloseWindow(hWnd);
return 0;
case WM_PAINT:
PAINTSTRUCT ps;
RECT winRect;
HDC pdc;
pdc = BeginPaint(hWnd, &ps);
GetClientRect(hWnd, &winRect);
FillRect(pdc, &winRect, (HBRUSH)GetStockObject(BLACK_BRUSH));
EndPaint(hWnd, &ps);
return 0;
case WM_SIZE:
if ( SIZE_MINIMIZED == wParam ) {
visible = FALSE;
} else {
visible = TRUE;
}
if(!window_ready) return 0;
app_graphics_resize(LOWORD(lParam), HIWORD(lParam));
return 0;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
BOOL reg_win_class() {
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = instance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = BOINC_WINDOW_CLASS_NAME;
if (!RegisterClass(&wc)) {
MessageBox(
NULL, "RegisterClass() failed.", "Error",
MB_OK|MB_ICONEXCLAMATION
);
return FALSE;
}
return TRUE;
}
BOOL unreg_win_class() {
if (!UnregisterClass(BOINC_WINDOW_CLASS_NAME, instance)) {
MessageBox(
NULL, "UnregisterClass() failed.", "ERROR",
MB_OK|MB_ICONINFORMATION
);
instance = NULL;
}
return TRUE;
}
static VOID CALLBACK timer_handler(HWND, UINT, UINT, DWORD) {
RECT rt;
int width, height;
static int size_changed = 0;
GetWindowRect(window, &rt);
width = rt.right-rt.left;
height = rt.bottom-rt.top;
if (throttled_app_render(width, height, dtime())) {
SwapBuffers(win_dc);
if (!fullscreen) {
// If user has changed window size, wait until it stops
// changing and then write the new dimensions to file
//
if ((rt.left != rect.left) || (rt.top != rect.top) ||
(rt.right != rect.right) || (rt.bottom != rect.bottom)
) {
if (IsZoomed(window)) return;
if ((rt.left < 0) && (rt.right < 0)) return;
if ((rt.top < 0) && (rt.bottom < 0)) return;
size_changed = 1;
rect.left = rt.left;
rect.top = rt.top;
rect.right = rt.right;
rect.bottom = rt.bottom;
} else {
if (size_changed && (++size_changed > 10)) {
size_changed = 0;
FILE *f = boinc_fopen("gfx_info", "w");
if (f) {
// ToDo: change this to XML
fprintf(f, "%d %d %d %d\n",
rect.left, rect.top, rect.right, rect.bottom
);
fclose(f);
}
}
} // End if (new size != previous size) else
}
}
}
void boinc_graphics_loop(int argc, char** argv, const char* title) {
char buf[256];
if (!diagnostics_is_initialized()) {
boinc_init_graphics_diagnostics(BOINC_DIAG_DEFAULTS);
}
fprintf(stderr,
"%s Starting graphics application.\n",
boinc_msg_prefix(buf, sizeof(buf))
);
for (int i=1; i<argc; i++) {
if (!strcmp(argv[i], "--fullscreen")) {
fullscreen = true;
fprintf(stderr, "%s fullscreen mode requested.\n",
boinc_msg_prefix(buf, sizeof(buf))
);
}
}
// Register the BOINC App window class
//
reg_win_class();
wglMakeCurrent(NULL,NULL);
make_window(title);
// Create a timer thread to do rendering
//
gfx_timer_id = SetTimer(NULL, 1, 30, (TIMERPROC)&timer_handler);
// Process the window message pump
//
MSG msg;
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// Unregister the BOINC App window class
unreg_win_class();
fprintf(stderr, "%s Shutting down graphics application.\n",
boinc_msg_prefix(buf, sizeof(buf))
);
}
extern int main(int, char**);
// call this with the resource names you compiled the icons with
// (16x16 and 48x48 pixel)
//
void boinc_set_windows_icon(const char* icon16, const char* icon48) {
LONGLONG ic;
HWND hWnd = FindWindow("BOINC_app",NULL);
if (ic = (LONGLONG)LoadIcon(instance, icon48)) {
#ifdef _WIN64
SetClassLongPtr(hWnd, GCLP_HICON, (LONG_PTR)ic);
#else
SetClassLongPtr(hWnd, GCLP_HICON, (LONG)ic);
#endif
}
if (ic = (LONGLONG)LoadImage(instance, icon16, IMAGE_ICON, 16, 16, 0)) {
#ifdef _WIN64
SetClassLongPtr(hWnd, GCLP_HICONSM, (LONG_PTR)ic);
#else
SetClassLongPtr(hWnd, GCLP_HICONSM, (LONG)ic);
#endif
}
}
int WINAPI WinMain(HINSTANCE inst, HINSTANCE, LPSTR, int) {
LPSTR command_line;
char* argv[100];
int argc;
instance = inst;
command_line = GetCommandLine();
argc = parse_command_line(command_line, argv);
main(argc, argv);
}
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