/*
* Dump the display surface(s) to a jpeg in ~/.appname/screenshot/.
* It is customary to assign a AG_GlobalKeys(3) shortcut for this function.
*/
void
AG_ViewCapture(void)
{
AG_Surface *s;
char *pname;
char dir[AG_PATHNAME_MAX];
char file[AG_PATHNAME_MAX];
Uint seq;
if (agDriverSw == NULL) {
Verbose("AG_ViewCapture() is not implemented under "
"multiple-window drivers\n");
return;
}
AG_LockVFS(&agDrivers);
if (AGDRIVER_SW_CLASS(agDriverSw)->videoCapture(agDriverSw, &s) == -1) {
Verbose("Capture failed: %s\n", AG_GetError());
goto out;
}
/* Save to a new file. */
AG_GetString(agConfig, "save-path", dir, sizeof(dir));
Strlcat(dir, AG_PATHSEP, sizeof(dir));
Strlcat(dir, "screenshot", sizeof(dir));
if (!AG_FileExists(dir) && AG_MkPath(dir) == -1) {
Verbose("Capture failed: %s\n", AG_GetError());
goto out;
}
pname = (agProgName != NULL) ? agProgName : "agarapp";
for (seq = 0; ; seq++) {
Snprintf(file, sizeof(file), "%s%c%s%u.jpg",
dir, AG_PATHSEPCHAR, pname, seq++);
if (!AG_FileExists(file))
break; /* XXX race condition */
}
if (AG_SurfaceExportJPEG(s, file) == 0) {
Verbose("Saved capture to: %s\n", file);
} else {
Verbose("Capture failed: %s\n", AG_GetError());
}
AG_SurfaceFree(s);
out:
AG_UnlockVFS(&agDrivers);
}
/*
* Initialize Agar with an existing SDL display. If the display surface has
* flags SDL_OPENGL / SDL_OPENGLBLIT set, the "sdlgl" driver is selected;
* otherwise, the "sdlfb" driver is used.
*/
int
AG_InitVideoSDL(void *pDisplay, Uint flags)
{
SDL_Surface *display = pDisplay;
AG_Driver *drv = NULL;
AG_DriverClass *dc = NULL;
int useGL = 0;
int i;
if (AG_InitGUIGlobals() == -1)
return (-1);
/* Enable OpenGL mode if the surface has SDL_OPENGL set. */
if (display->flags & (SDL_OPENGL|SDL_OPENGLBLIT)) {
if (flags & AG_VIDEO_SDL) {
AG_SetError("AG_VIDEO_SDL flag requested, but "
"display surface has SDL_OPENGL set");
goto fail;
}
useGL = 1;
} else {
if (flags & AG_VIDEO_OPENGL) {
AG_SetError("AG_VIDEO_OPENGL flag requested, but "
"display surface is missing SDL_OPENGL");
goto fail;
}
}
for (i = 0; i < agDriverListSize; i++) {
dc = agDriverList[i];
if (dc->wm == AG_WM_SINGLE &&
(dc->flags & AG_DRIVER_SDL) &&
(!useGL || (dc->flags & AG_DRIVER_OPENGL)) &&
(drv = AG_DriverOpen(dc)) != NULL)
break;
}
if (i == agDriverListSize) {
AG_SetError("No compatible SDL driver is available");
goto fail;
}
/* Open a video display. */
if (AGDRIVER_SW_CLASS(drv)->openVideoContext(drv, (void *)display,
flags) == -1) {
AG_DriverClose(drv);
goto fail;
}
if (drv->videoFmt == NULL)
AG_FatalError("Driver did not set video format");
/* Generic Agar-GUI initialization. */
if (AG_InitGUI(0) == -1) {
AG_DriverClose(drv);
goto fail;
}
agDriverOps = dc;
agDriverSw = AGDRIVER_SW(drv);
#ifdef AG_LEGACY
agView = drv;
#endif
return (0);
fail:
AG_DestroyGUIGlobals();
return (-1);
}
