testwm.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:8k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /* Test out the window manager interaction functions */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "SDL.h"
- /* Is the cursor visible? */
- static int visible = 1;
- SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp)
- {
- SDL_Surface *icon;
- Uint8 *pixels;
- Uint8 *mask;
- int mlen, i;
- *maskp = NULL;
- /* Load the icon surface */
- icon = SDL_LoadBMP(file);
- if ( icon == NULL ) {
- fprintf(stderr, "Couldn't load %s: %sn", file, SDL_GetError());
- return(NULL);
- }
- /* Check width and height */
- if ( (icon->w%8) != 0 ) {
- fprintf(stderr, "Icon width must be a multiple of 8!n");
- SDL_FreeSurface(icon);
- return(NULL);
- }
- if ( icon->format->palette == NULL ) {
- fprintf(stderr, "Icon must have a palette!n");
- SDL_FreeSurface(icon);
- return(NULL);
- }
- /* Set the colorkey */
- SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels));
- /* Create the mask */
- pixels = (Uint8 *)icon->pixels;
- printf("Transparent pixel: (%d,%d,%d)n",
- icon->format->palette->colors[*pixels].r,
- icon->format->palette->colors[*pixels].g,
- icon->format->palette->colors[*pixels].b);
- mlen = icon->w*icon->h;
- mask = (Uint8 *)malloc(mlen/8);
- if ( mask == NULL ) {
- fprintf(stderr, "Out of memory!n");
- SDL_FreeSurface(icon);
- return(NULL);
- }
- memset(mask, 0, mlen/8);
- for ( i=0; i<mlen; ) {
- if ( pixels[i] != *pixels )
- mask[i/8] |= 0x01;
- ++i;
- if ( (i%8) != 0 )
- mask[i/8] <<= 1;
- }
- *maskp = mask;
- return(icon);
- }
- void HotKey_ToggleFullScreen(void)
- {
- SDL_Surface *screen;
- screen = SDL_GetVideoSurface();
- if ( SDL_WM_ToggleFullScreen(screen) ) {
- printf("Toggled fullscreen mode - now %sn",
- (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed");
- } else {
- printf("Unable to toggle fullscreen moden");
- }
- }
- void HotKey_ToggleGrab(void)
- {
- SDL_GrabMode mode;
- printf("Ctrl-G: toggling input grab!n");
- mode = SDL_WM_GrabInput(SDL_GRAB_QUERY);
- if ( mode == SDL_GRAB_ON ) {
- printf("Grab was onn");
- } else {
- printf("Grab was offn");
- }
- mode = SDL_WM_GrabInput(!mode);
- if ( mode == SDL_GRAB_ON ) {
- printf("Grab is now onn");
- } else {
- printf("Grab is now offn");
- }
- }
- void HotKey_Iconify(void)
- {
- printf("Ctrl-Z: iconifying window!n");
- SDL_WM_IconifyWindow();
- }
- void HotKey_Quit(void)
- {
- SDL_Event event;
- printf("Posting internal quit requestn");
- event.type = SDL_USEREVENT;
- SDL_PushEvent(&event);
- }
- int FilterEvents(const SDL_Event *event)
- {
- static int reallyquit = 0;
- switch (event->type) {
- case SDL_ACTIVEEVENT:
- /* See what happened */
- printf("App %s ",
- event->active.gain ? "gained" : "lost");
- if ( event->active.state & SDL_APPACTIVE )
- printf("active ");
- if ( event->active.state & SDL_APPMOUSEFOCUS )
- printf("mouse ");
- if ( event->active.state & SDL_APPINPUTFOCUS )
- printf("input ");
- printf("focusn");
- /* See if we are iconified or restored */
- if ( event->active.state & SDL_APPACTIVE ) {
- printf("App has been %sn",
- event->active.gain ?
- "restored" : "iconified");
- }
- return(0);
- /* We want to toggle visibility on buttonpress */
- case SDL_MOUSEBUTTONDOWN:
- case SDL_MOUSEBUTTONUP:
- if ( event->button.state == SDL_PRESSED ) {
- visible = !visible;
- SDL_ShowCursor(visible);
- }
- printf("Mouse button %d has been %sn",
- event->button.button,
- (event->button.state == SDL_PRESSED) ?
- "pressed" : "released");
- return(0);
- /* Show relative mouse motion */
- case SDL_MOUSEMOTION:
- #if 0
- printf("Mouse relative motion: {%d,%d}n",
- event->motion.xrel, event->motion.yrel);
- #endif
- return(0);
- case SDL_KEYDOWN:
- if ( event->key.keysym.sym == SDLK_ESCAPE ) {
- HotKey_Quit();
- }
- if ( (event->key.keysym.sym == SDLK_g) &&
- (event->key.keysym.mod & KMOD_CTRL) ) {
- HotKey_ToggleGrab();
- }
- if ( (event->key.keysym.sym == SDLK_z) &&
- (event->key.keysym.mod & KMOD_CTRL) ) {
- HotKey_Iconify();
- }
- if ( (event->key.keysym.sym == SDLK_RETURN) &&
- (event->key.keysym.mod & KMOD_ALT) ) {
- HotKey_ToggleFullScreen();
- }
- return(0);
- /* Pass the video resize event through .. */
- case SDL_VIDEORESIZE:
- return(1);
- /* This is important! Queue it if we want to quit. */
- case SDL_QUIT:
- if ( ! reallyquit ) {
- reallyquit = 1;
- printf("Quit requestedn");
- return(0);
- }
- printf("Quit demandedn");
- return(1);
- /* This will never happen because events queued directly
- to the event queue are not filtered.
- */
- case SDL_USEREVENT:
- return(1);
- /* Drop all other events */
- default:
- return(0);
- }
- }
- static Uint8 video_bpp;
- static Uint32 video_flags;
- int SetVideoMode(int w, int h)
- {
- SDL_Surface *screen;
- int i;
- Uint8 *buffer;
- SDL_Color palette[256];
- screen = SDL_SetVideoMode(w, h, video_bpp, video_flags);
- if ( screen == NULL ) {
- fprintf(stderr, "Couldn't set %dx%dx%d video mode: %sn",
- w, h, video_bpp, SDL_GetError());
- return(-1);
- }
- printf("Running in %s moden", screen->flags & SDL_FULLSCREEN ?
- "fullscreen" : "windowed");
- /* Set the surface pixels and refresh! */
- for ( i=0; i<256; ++i ) {
- palette[i].r = 255-i;
- palette[i].g = 255-i;
- palette[i].b = 255-i;
- }
- SDL_SetColors(screen, palette, 0, 256);
- if ( SDL_LockSurface(screen) < 0 ) {
- fprintf(stderr, "Couldn't lock display surface: %sn",
- SDL_GetError());
- return(-1);
- }
- buffer = (Uint8 *)screen->pixels;
- for ( i=0; i<screen->h; ++i ) {
- memset(buffer,(i*255)/screen->h,
- screen->w*screen->format->BytesPerPixel);
- buffer += screen->pitch;
- }
- SDL_UnlockSurface(screen);
- SDL_UpdateRect(screen, 0, 0, 0, 0);
- return(0);
- }
- int main(int argc, char *argv[])
- {
- SDL_Event event;
- char *title;
- SDL_Surface *icon;
- Uint8 *icon_mask;
- int parsed;
- int w, h;
- if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
- fprintf(stderr,
- "Couldn't initialize SDL: %sn", SDL_GetError());
- exit(1);
- }
- atexit(SDL_Quit);
- /* Check command line arguments */
- w = 640;
- h = 480;
- video_bpp = 8;
- video_flags = SDL_SWSURFACE;
- parsed = 1;
- while ( parsed ) {
- if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) {
- video_flags |= SDL_FULLSCREEN;
- argc -= 1;
- argv += 1;
- } else
- if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) {
- video_flags |= SDL_RESIZABLE;
- argc -= 1;
- argv += 1;
- } else
- if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) {
- video_flags |= SDL_NOFRAME;
- argc -= 1;
- argv += 1;
- } else
- if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) {
- w = atoi(argv[2]);
- argc -= 2;
- argv += 2;
- } else
- if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) {
- h = atoi(argv[2]);
- argc -= 2;
- argv += 2;
- } else
- if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) {
- video_bpp = atoi(argv[2]);
- argc -= 2;
- argv += 2;
- } else {
- parsed = 0;
- }
- }
- /* Set the icon -- this must be done before the first mode set */
- icon = LoadIconSurface("icon.bmp", &icon_mask);
- if ( icon != NULL ) {
- SDL_WM_SetIcon(icon, icon_mask);
- }
- if ( icon_mask != NULL )
- free(icon_mask);
- /* Set the title bar */
- if ( argv[1] == NULL )
- title = "Testing 1.. 2.. 3...";
- else
- title = argv[1];
- SDL_WM_SetCaption(title, "testwm");
- /* See if it's really set */
- SDL_WM_GetCaption(&title, NULL);
- if ( title )
- printf("Title was set to: %sn", title);
- else
- printf("No window title was set!n");
- /* Initialize the display */
- if ( SetVideoMode(w, h) < 0 ) {
- return(1);
- }
- /* Set an event filter that discards everything but QUIT */
- SDL_SetEventFilter(FilterEvents);
- /* Ignore key up events, they don't even get filtered */
- SDL_EventState(SDL_KEYUP, SDL_IGNORE);
- /* Loop, waiting for QUIT */
- while ( SDL_WaitEvent(&event) ) {
- switch (event.type) {
- case SDL_VIDEORESIZE:
- printf("Got a resize event: %dx%dn",
- event.resize.w, event.resize.h);
- SetVideoMode(event.resize.w, event.resize.h);
- break;
- case SDL_USEREVENT:
- printf("Handling internal quit requestn");
- /* Fall through to the quit handler */
- case SDL_QUIT:
- printf("Bye bye..n");
- return(0);
- default:
- /* This should never happen */
- printf("Warning: Event %d wasn't filteredn",
- event.type);
- break;
- }
- }
- printf("SDL_WaitEvent() error: %sn", SDL_GetError());
- return(255);
- }