ref: dd4e95dc08087503e1467a3ba8c6d534f285d5dd
parent: daaf0d1fcf4d3ed5c77806b3ea15db0f3a787f1e
author: Simon Howard <fraggle@gmail.com>
date: Tue Nov 14 15:09:26 EST 2006
Support running as a screensaver under X! Subversion-branch: /trunk/chocolate-doom Subversion-revision: 750
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -138,7 +138,10 @@
chocolate_doom_LDADD = ../textscreen/libtextscreen.a @LDFLAGS@ @SDL_LIBS@ @SDLMIXER_LIBS@ @SDLNET_LIBS@
-EXTRA_DIST = convert-icon chocolate_doom_icon.c
+EXTRA_DIST = \
+ convert-icon \
+ chocolate_doom_icon.c \
+ chocolate-doom-screensaver.desktop
.rc.o:
$(WINDRES) $^ -o $@
--- /dev/null
+++ b/src/chocolate-doom-screensaver.desktop
@@ -1,0 +1,12 @@
+
+[Desktop Entry]
+Encoding=UTF-8
+Name=Doom
+Comment=DOOM by Id Software.
+TryExec=chocolate-doom
+Exec=chocolate-doom
+StartupNotify=false
+Terminal=false
+Type=Application
+Categories=Screensaver
+
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -111,7 +111,11 @@
boolean singletics = false; // debug flag to cancel adaptiveness
+// If true, game is running as a screensaver
+boolean screensaver_mode = false;
+
+
//extern int soundVolume;
//extern int sfxVolume;
//extern int musicVolume;
@@ -1295,7 +1299,7 @@
char demolumpname[9];
FindResponseFile ();
-
+
// print banner
PrintBanner(PACKAGE_STRING);
--- a/src/doomstat.h
+++ b/src/doomstat.h
@@ -55,6 +55,7 @@
extern boolean devparm; // DEBUG: launched with -devparm
+extern boolean screensaver_mode; // game running as a screensaver?
// -----------------------------------------------------
// Game Mode - identify IWAD as shareware, retail etc.
--- a/src/i_sound.c
+++ b/src/i_sound.c
@@ -462,8 +462,9 @@
// If music or sound is going to play, we need to at least
// initialise SDL
+ // No sound in screensaver mode.
- if (nomusicparm && nosfxparm)
+ if (screensaver_mode || (nomusicparm && nosfxparm))
return;
if (SDL_Init(SDL_INIT_AUDIO) < 0)
--- a/src/i_system.c
+++ b/src/i_system.c
@@ -106,6 +106,7 @@
//
void I_Init (void)
{+ I_CheckIsScreensaver();
I_InitSound();
I_InitMusic();
I_InitTimer();
@@ -164,10 +165,15 @@
G_CheckDemoStatus();
I_ShutdownSound();
I_ShutdownMusic();
- M_SaveDefaults ();
+
+ if (!screensaver_mode)
+ {+ M_SaveDefaults ();
+ }
+
I_ShutdownGraphics();
- if (show_endoom && !testcontrols)
+ if (show_endoom && !testcontrols && !screensaver_mode)
{I_Endoom();
}
--- a/src/i_video.c
+++ b/src/i_video.c
@@ -132,6 +132,11 @@
static boolean MouseShouldBeGrabbed()
{+ // never grab the mouse when in screensaver mode
+
+ if (screensaver_mode)
+ return false;
+
// if the window doesnt have focus, never grab it
if (!window_focused)
@@ -382,6 +387,11 @@
continue;
}
+ if (screensaver_mode && sdlevent.type == SDL_QUIT)
+ {+ I_Quit();
+ }
+
// process event
switch (sdlevent.type)
@@ -392,11 +402,13 @@
event.data2 = sdlevent.key.keysym.unicode;
D_PostEvent(&event);
break;
+
case SDL_KEYUP:
event.type = ev_keyup;
event.data1 = TranslateKey(&sdlevent.key.keysym);
D_PostEvent(&event);
break;
+
/*
case SDL_MOUSEMOTION:
event.type = ev_mouse;
@@ -406,6 +418,7 @@
D_PostEvent(&event);
break;
*/
+
case SDL_MOUSEBUTTONDOWN:
if (usemouse && !nomouse)
{@@ -415,6 +428,7 @@
D_PostEvent(&event);
}
break;
+
case SDL_MOUSEBUTTONUP:
if (usemouse && !nomouse)
{@@ -424,15 +438,18 @@
D_PostEvent(&event);
}
break;
+
case SDL_QUIT:
// bring up the "quit doom?" prompt
S_StartSound(NULL,sfx_swtchn);
M_QuitDOOM(0);
break;
+
case SDL_ACTIVEEVENT:
// need to update our focus state
UpdateFocus();
break;
+
default:
break;
}
@@ -534,18 +551,10 @@
static void BlitArea(int x1, int y1, int x2, int y2)
{int w = x2 - x1;
- int y_offset;
+ int x_offset, y_offset;
- // Y offset when running in letterbox mode
-
- if (fullscreen == FULLSCREEN_LETTERBOX)
- {- y_offset = (LETTERBOX_SCREENHEIGHT - SCREENHEIGHT) / 2;
- }
- else
- {- y_offset = 0;
- }
+ x_offset = ((screen->w / screenmultiply) - SCREENWIDTH) / 2;
+ y_offset = ((screen->h / screenmultiply) - SCREENHEIGHT) / 2;
// Need to byte-copy from buffer into the screen buffer
@@ -559,7 +568,8 @@
{pitch = screen->pitch;
bufp = screens[0] + y1 * SCREENWIDTH + x1;
- screenp = (byte *) screen->pixels + (y1 + y_offset) * pitch + x1;
+ screenp = (byte *) screen->pixels + (y1 + y_offset) * pitch
+ + x1 + x_offset;
for (y=y1; y<y2; ++y)
{@@ -586,7 +596,7 @@
bufp = screens[0] + y1 * SCREENWIDTH + x1;
screenp = (byte *) screen->pixels
+ (y1 + y_offset) * pitch
- + x1 * 2;
+ + (x1 + x_offset) * 2;
screenp2 = screenp + screen->pitch;
for (y=y1; y<y2; ++y)
@@ -623,7 +633,7 @@
bufp = screens[0] + y1 * SCREENWIDTH + x1;
screenp = (byte *) screen->pixels
+ (y1 + y_offset) * pitch
- + x1 * 3;
+ + (x1 + x_offset) * 3;
screenp2 = screenp + screen->pitch;
screenp3 = screenp2 + screen->pitch;
@@ -664,7 +674,7 @@
bufp = screens[0] + y1 * SCREENWIDTH + x1;
screenp = (byte *) screen->pixels
+ (y1 + y_offset) * pitch
- + x1 * 4;
+ + (x1 + x_offset) * 4;
screenp2 = screenp + screen->pitch;
screenp3 = screenp2 + screen->pitch;
screenp4 = screenp3 + screen->pitch;
@@ -1041,11 +1051,76 @@
}
}
+// Check if we have been invoked as a screensaver by xscreensaver.
+
+void I_CheckIsScreensaver(void)
+{+ char *env;
+
+ env = SDL_getenv("XSCREENSAVER_WINDOW");+
+ if (env != NULL)
+ {+ screensaver_mode = true;
+ }
+}
+
+// In screensaver mode, pick a screenmultiply value that fits
+// inside the screen. It is okay to do this because settings
+// are not saved in screensaver mode.
+
+static void FindScreensaverMultiply(void)
+{+ int i;
+
+ for (i=1; i<=4; ++i)
+ {+ if (SCREENWIDTH * i <= screen->w
+ && SCREENHEIGHT * i <= screen->h)
+ {+ screenmultiply = i;
+ }
+ }
+}
+
+// Blank cursor so we don't see the mouse. It is not okay to
+// do SDL_ShowCursor(0) because this will hide the mouse in
+// the configuration dialog. Only show no mouse when over this
+// window.
+
+static void SetBlankCursor(void)
+{+ Uint8 zero = zero;
+ SDL_Cursor *cursor;
+
+ cursor = SDL_CreateCursor(&zero, &zero, 1, 1, 0, 0);
+
+ SDL_SetCursor(cursor);
+}
+
void I_InitGraphics(void)
{SDL_Event dummy;
int flags = 0;
+ char *env;
+ // Pass through the XSCREENSAVER_WINDOW environment variable to
+ // SDL_WINDOWID, to embed the SDL window into the Xscreensaver
+ // window.
+
+ env = SDL_getenv("XSCREENSAVER_WINDOW");+
+ if (env != NULL)
+ {+ char winenv[30];
+ int winid;
+
+ sscanf(env, "0x%x", &winid);
+ sprintf(winenv, "SDL_WINDOWID=%i", winid);
+
+ SDL_putenv(winenv);
+ }
+
#ifdef _WIN32
// Allow -gdi as a shortcut for using the windib driver.
@@ -1096,6 +1171,12 @@
flags |= SDL_FULLSCREEN;
}
+ if (screensaver_mode)
+ {+ windowwidth = 0;
+ windowheight = 0;
+ }
+
screen = SDL_SetVideoMode(windowwidth, windowheight, 8, flags);
if (screen == NULL)
@@ -1103,6 +1184,15 @@
I_Error("Error setting video mode: %s\n", SDL_GetError());}
+ // In screensaver mode, screenmultiply as large as possible
+ // and set a blank cursor.
+
+ if (screensaver_mode)
+ {+ FindScreensaverMultiply();
+ SetBlankCursor();
+ }
+
// Start with a clear black screen
// (screen will be flipped after we set the palette)
@@ -1137,7 +1227,7 @@
// setting the screen mode, so that the game doesn't start immediately
// with the player unable to see anything.
- if (fullscreen)
+ if (fullscreen && !screensaver_mode)
{SDL_Delay(startup_delay);
}
--- a/src/i_video.h
+++ b/src/i_video.h
@@ -58,6 +58,8 @@
void I_SetWindowCaption(void);
void I_SetWindowIcon(void);
+void I_CheckIsScreensaver(void);
+
extern int autoadjust_video_settings;
extern boolean screenvisible;
extern int screenmultiply;