[Bf-committers] Screenblender (Using blenderplayer.exe as a screen
saver)
Raymond Penners
dotsphinx at gmail.com
Fri Nov 26 22:45:54 CET 2004
Hi,
Attached is a patch that enables the blenderplayer to be run as a
screen saver on Windows machines.
- The patch only alters files in: blender/source/gameengine/GamePlayer/ghost
- Any blenderplayer.exe (with the patch applied) can be renamed into
something.scr, and it will behave as a Windows screen saver.
(Right-click the .scr file, and select "Install". Then, it will appear
in the screen saver properties dialog part of the display settings,
including small preview et al).
- The screen saving functionality does not affect the executable when
it is NOT named .scr
- The screen saver automatically exits when the mouse/keyboard is
moved/pressed. There is no more need to wrap blenderplayer.exe into a
bat file and use python quit controllers, or whatever else is
suggested at http://download.blender.org/documentation/oldsite/oldsite.blender3d.org/181_Blender%20news%20haloParty.html
- It has been currently been tested to work Windows XP
Please let me know what you think of this patch. Is it commit worthy? :)
Regards,
--
Raymond Penners -*- raymond at dotsphinx.com -*- www.dotsphinx.com
-------------- next part --------------
diff -u -r /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_Application.cpp ./GPG_Application.cpp
--- /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_Application.cpp 2004-08-10 14:34:12.000000000 +0200
+++ ./GPG_Application.cpp 2004-11-25 22:13:32.000000000 +0100
@@ -156,6 +156,138 @@
}
+#ifdef WIN32
+#define SCR_SAVE_MOUSE_MOVE_THRESHOLD 15
+
+static HWND found_ghost_window_hwnd;
+static GHOST_IWindow* ghost_window_to_find;
+static WNDPROC ghost_wnd_proc;
+static POINT scr_save_mouse_pos;
+
+static LRESULT CALLBACK screenSaverWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+ BOOL close = FALSE;
+ switch (uMsg)
+ {
+ case WM_MOUSEMOVE:
+ {
+ POINT pt;
+ GetCursorPos(&pt);
+ LONG dx = scr_save_mouse_pos.x - pt.x;
+ LONG dy = scr_save_mouse_pos.y - pt.y;
+ if (abs(dx) > SCR_SAVE_MOUSE_MOVE_THRESHOLD
+ || abs(dy) > SCR_SAVE_MOUSE_MOVE_THRESHOLD)
+ {
+ close = TRUE;
+ }
+ scr_save_mouse_pos = pt;
+ break;
+ }
+ case WM_LBUTTONDOWN:
+ case WM_MBUTTONDOWN:
+ case WM_RBUTTONDOWN:
+ case WM_KEYDOWN:
+ close = TRUE;
+ }
+ if (close)
+ PostMessage(hwnd,WM_CLOSE,0,0);
+ return CallWindowProc(ghost_wnd_proc, hwnd, uMsg, wParam, lParam);
+}
+
+BOOL CALLBACK findGhostWindowHWNDProc(HWND hwnd, LPARAM lParam)
+{
+ GHOST_IWindow *p = (GHOST_IWindow*) GetWindowLong(hwnd, GWL_USERDATA);
+ BOOL ret = TRUE;
+ if (p == ghost_window_to_find)
+ {
+ found_ghost_window_hwnd = hwnd;
+ ret = FALSE;
+ }
+ return ret;
+}
+
+static HWND findGhostWindowHWND(GHOST_IWindow* window)
+{
+ found_ghost_window_hwnd = NULL;
+ ghost_window_to_find = window;
+ EnumWindows(findGhostWindowHWNDProc, NULL);
+ return found_ghost_window_hwnd;
+}
+
+bool GPG_Application::startScreenSaverPreview(
+ HWND parentWindow,
+ const bool stereoVisual,
+ const int stereoMode)
+{
+ bool success = false;
+
+ RECT rc;
+ if (GetWindowRect(parentWindow, &rc))
+ {
+ int windowWidth = rc.right - rc.left;
+ int windowHeight = rc.bottom - rc.top;
+ STR_String title = "";
+
+ m_mainWindow = fSystem->createWindow(title, 0, 0, windowWidth, windowHeight, GHOST_kWindowStateMinimized,
+ GHOST_kDrawingContextTypeOpenGL, stereoVisual);
+ if (!m_mainWindow) {
+ printf("error: could not create main window\n");
+ exit(-1);
+ }
+
+ HWND ghost_hwnd = findGhostWindowHWND(m_mainWindow);
+ if (!ghost_hwnd) {
+ printf("error: could find main window\n");
+ exit(-1);
+ }
+
+ SetParent(ghost_hwnd, parentWindow);
+ LONG style = GetWindowLong(ghost_hwnd, GWL_STYLE);
+ LONG exstyle = GetWindowLong(ghost_hwnd, GWL_EXSTYLE);
+
+ RECT adjrc = { 0, 0, windowWidth, windowHeight };
+ AdjustWindowRectEx(&adjrc, style, FALSE, exstyle);
+
+ style = (style & (~(WS_POPUP|WS_OVERLAPPEDWINDOW|WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_THICKFRAME|WS_MINIMIZEBOX|WS_MAXIMIZEBOX|WS_TILEDWINDOW ))) | WS_CHILD;
+ SetWindowLong(ghost_hwnd, GWL_STYLE, style);
+ SetWindowPos(ghost_hwnd, NULL, adjrc.left, adjrc.top, 0, 0, SWP_NOZORDER|SWP_NOSIZE|SWP_NOACTIVATE);
+
+ /* Check the size of the client rectangle of the window and resize the window
+ * so that the client rectangle has the size requested.
+ */
+ m_mainWindow->setClientSize(windowWidth, windowHeight);
+
+ success = initEngine(m_mainWindow, stereoMode);
+ if (success) {
+ success = startEngine();
+ }
+
+ }
+ return success;
+}
+
+bool GPG_Application::startScreenSaverFullScreen(
+ int width,
+ int height,
+ int bpp,int frequency,
+ const bool stereoVisual,
+ const int stereoMode)
+{
+ bool ret = startFullScreen(width, height, bpp, frequency, stereoVisual, stereoMode);
+ if (ret)
+ {
+ HWND ghost_hwnd = findGhostWindowHWND(m_mainWindow);
+ if (ghost_hwnd != NULL)
+ {
+ GetCursorPos(&scr_save_mouse_pos);
+ ghost_wnd_proc = (WNDPROC) GetWindowLong(ghost_hwnd, GWL_WNDPROC);
+ SetWindowLong(ghost_hwnd,GWL_WNDPROC, (LONG) screenSaverWindowProc);
+ }
+ }
+ return ret;
+}
+
+#endif
bool GPG_Application::startWindow(STR_String& title,
int windowLeft,
diff -u -r /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_Application.h ./GPG_Application.h
--- /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_Application.h 2004-05-03 02:45:04.000000000 +0200
+++ ./GPG_Application.h 2004-11-25 21:56:24.000000000 +0100
@@ -34,6 +34,10 @@
#include "GHOST_IEventConsumer.h"
#include "STR_String.h"
+#ifdef WIN32
+#include <wtypes.h>
+#endif
+
class KX_KetsjiEngine;
class KX_ISceneConverter;
class NG_LoopBackNetworkDeviceInterface;
@@ -60,6 +64,11 @@
bool startWindow(STR_String& title, int windowLeft, int windowTop, int windowWidth, int windowHeight,
const bool stereoVisual, const int stereoMode);
bool startFullScreen(int width, int height, int bpp, int frequency, const bool stereoVisual, const int stereoMode);
+#ifdef WIN32
+ bool startScreenSaverFullScreen(int width, int height, int bpp, int frequency, const bool stereoVisual, const int stereoMode);
+ bool startScreenSaverPreview(HWND parentWindow, const bool stereoVisual, const int stereoMode);
+#endif
+
virtual bool processEvent(GHOST_IEvent* event);
int getExitRequested(void);
const STR_String& getExitString(void);
diff -u -r /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_ghost.cpp ./GPG_ghost.cpp
--- /cygdrive/d/blenderdev/blender-2.35/source/gameengine/GamePlayer//ghost/GPG_ghost.cpp 2004-11-07 23:21:48.000000000 +0100
+++ ./GPG_ghost.cpp 2004-11-25 21:58:37.000000000 +0100
@@ -90,12 +90,70 @@
#include <wincon.h>
#endif // NDEBUG
#endif // WIN32
+//fixme
+#include <windows.h>
const int kMinWindowWidth = 100;
const int kMinWindowHeight = 100;
char bprogname[FILE_MAXDIR+FILE_MAXFILE];
+#ifdef WIN32
+typedef enum
+{
+ SCREEN_SAVER_MODE_NONE = 0,
+ SCREEN_SAVER_MODE_PREVIEW,
+ SCREEN_SAVER_MODE_SAVER,
+ SCREEN_SAVER_MODE_CONFIGURATION,
+ SCREEN_SAVER_MODE_PASSWORD,
+} ScreenSaverMode;
+
+static ScreenSaverMode scr_saver_mode = SCREEN_SAVER_MODE_NONE;
+static HWND scr_saver_hwnd = NULL;
+
+static BOOL scr_saver_init(int argc, char **argv)
+{
+ scr_saver_mode = SCREEN_SAVER_MODE_NONE;
+ scr_saver_hwnd = NULL;
+ BOOL ret = FALSE;
+
+ int len = ::strlen(argv[0]);
+ if (len > 4 && !::stricmp(".scr", argv[0] + len - 4))
+ {
+ scr_saver_mode = SCREEN_SAVER_MODE_CONFIGURATION;
+ ret = TRUE;
+ if (argc >= 2)
+ {
+ if (argc >= 3)
+ {
+ scr_saver_hwnd = (HWND) ::atoi(argv[2]);
+ }
+ if (!::stricmp("/c", argv[1]))
+ {
+ scr_saver_mode = SCREEN_SAVER_MODE_CONFIGURATION;
+ if (scr_saver_hwnd == NULL)
+ scr_saver_hwnd = ::GetForegroundWindow();
+ }
+ else if (!::stricmp("/s", argv[1]))
+ {
+ scr_saver_mode = SCREEN_SAVER_MODE_SAVER;
+ }
+ else if (!::stricmp("/a", argv[1]))
+ {
+ scr_saver_mode = SCREEN_SAVER_MODE_PASSWORD;
+ }
+ else if (!::stricmp("/p", argv[1])
+ || !::stricmp("/l", argv[1]))
+ {
+ scr_saver_mode = SCREEN_SAVER_MODE_PREVIEW;
+ }
+ }
+ }
+ return ret;
+}
+
+#endif /* WIN32 */
+
void usage(char* program)
{
char * consoleoption;
@@ -280,7 +338,34 @@
printf("argv[0] = '%s'\n", argv[0]);
#endif
- for (i = 1; (i < argc) && !error;)
+
+#ifdef WIN32
+ if (scr_saver_init(argc, argv))
+ {
+ switch (scr_saver_mode)
+ {
+ case SCREEN_SAVER_MODE_CONFIGURATION:
+ MessageBox(scr_saver_hwnd, "This screen saver has no options that you can set", "Screen Saver", MB_OK);
+ break;
+ case SCREEN_SAVER_MODE_PASSWORD:
+ /* This is W95 only, which we currently do not support.
+ Fall-back to normal screen saver behaviour in that case... */
+ case SCREEN_SAVER_MODE_SAVER:
+ fullScreen = true;
+ fullScreenParFound = true;
+ break;
+
+ case SCREEN_SAVER_MODE_PREVIEW:
+ /* This will actually be handled somewhere below... */
+ break;
+ }
+ }
+#endif
+ for (i = 1; (i < argc) && !error
+#ifdef WIN32
+ && scr_saver_mode == SCREEN_SAVER_MODE_NONE
+#endif
+ ;)
{
#ifndef NDEBUG
@@ -447,6 +532,9 @@
usage(argv[0]);
}
else
+#ifdef WIN32
+ if (scr_saver_mode != SCREEN_SAVER_MODE_CONFIGURATION)
+#endif
{
#ifdef __APPLE__
//SYS_WriteCommandLineInt(syshandle, "show_framerate", 1);
@@ -567,8 +655,18 @@
if (fullScreen)
{
- app.startFullScreen(fullScreenWidth, fullScreenHeight, fullScreenBpp, fullScreenFrequency,
- stereoWindow, stereomode);
+#ifdef WIN32
+ if (scr_saver_mode == SCREEN_SAVER_MODE_SAVER)
+ {
+ app.startScreenSaverFullScreen(fullScreenWidth, fullScreenHeight, fullScreenBpp, fullScreenFrequency,
+ stereoWindow, stereomode);
+ }
+ else
+#endif
+ {
+ app.startFullScreen(fullScreenWidth, fullScreenHeight, fullScreenBpp, fullScreenFrequency,
+ stereoWindow, stereomode);
+ }
}
else
{
@@ -604,8 +702,17 @@
{
title = "blenderplayer";
}
- app.startWindow(title, windowLeft, windowTop, windowWidth, windowHeight,
- stereoWindow, stereomode);
+#ifdef WIN32
+ if (scr_saver_mode == SCREEN_SAVER_MODE_PREVIEW)
+ {
+ app.startScreenSaverPreview(scr_saver_hwnd, stereoWindow, stereomode);
+ }
+ else
+#endif
+ {
+ app.startWindow(title, windowLeft, windowTop, windowWidth, windowHeight,
+ stereoWindow, stereomode);
+ }
}
}
else
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