4 * build: gcc -o dfb-photoshow -O3 -Wall -I/usr/X11/include \
5 * -I/usr/include/directfb dfb-photoshow.c
6 * usage: ./showdir <seconds> <directory>
9 * hackbard@hackdaworld.dyndns.org
11 * cvs -d:pserver:anonymous@hackdaworld.dyndns.org:/my-code co dfb-photoshow
20 IDirectFB *dfb = NULL;
21 IDirectFBSurface *primary = NULL;
23 int screen_height = 0;
25 #define DFBCHECK(x...) \
29 fprintf(stderr,"file: %s , line: %d !\n\t",__FILE__,__LINE__); \
30 DirectFBErrorFatal( #x, err ); \
34 IDirectFBInputDevice *keyboard=NULL;
35 IDirectFBSurface *logo=NULL;
36 IDirectFBFont *font=NULL;
37 IDirectFBEventBuffer *k_buf=NULL;
39 char *title_txt="directfb photoshow";
40 char *exp_txt="an image presenter ...";
41 char *hp_txt="http://hackdaworld.dyndns.org";
42 char *msg1_txt="(press key to continue, space pauses, left key for last image, esc quits ...)";
44 void clear_primary(void) {
45 DFBCHECK(primary->SetColor(primary,0x00,0x00,0x00,0x00));
46 DFBCHECK(primary->FillRectangle(primary,0,0,screen_width,screen_height));
49 int main(int argc,char **argv) {
51 DFBInputEvent k_event;
52 DFBSurfaceDescription dsc;
53 DFBFontDescription font_dsc;
54 IDirectFBImageProvider *img_prov;
56 DFBCHECK(DirectFBInit (&argc, &argv));
58 DFBCHECK(DirectFBCreate(&dfb));
59 DFBCHECK(dfb->SetCooperativeLevel(dfb,DFSCL_FULLSCREEN));
61 dsc.flags=DSDESC_CAPS;
62 dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
63 DFBCHECK(dfb->CreateSurface(dfb,&dsc,&primary));
65 DFBCHECK(primary->GetSize(primary,&screen_width,&screen_height));
66 fprintf(stdout,"dimensions: %dx%d\n",screen_width,screen_height);
68 DFBCHECK(dfb->GetInputDevice(dfb,DIDID_KEYBOARD,&keyboard));
69 DFBCHECK(keyboard->CreateEventBuffer(keyboard,&k_buf));
72 font_dsc.flags=DFDESC_HEIGHT;
73 font_dsc.height=screen_height/20;
74 DFBCHECK(dfb->CreateFont(dfb,"/usr/share/DFBSee/decker.ttf",&font_dsc,&font));
75 DFBCHECK(primary->SetFont(primary,font));
76 DFBCHECK(font->GetStringWidth(font,title_txt,-1,&str_width));
78 DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
79 DFBCHECK(primary->DrawString(primary,title_txt,-1,(screen_width-str_width)/2,screen_height/4,DSTF_LEFT));
80 /* explanation,homepage,msg */
81 font_dsc.height=screen_height/40;
82 DFBCHECK(dfb->CreateFont(dfb,"/usr/share/DFBSee/decker.ttf",&font_dsc,&font));
83 DFBCHECK(primary->SetFont(primary,font));
84 DFBCHECK(font->GetStringWidth(font,exp_txt,-1,&str_width));
85 DFBCHECK(primary->DrawString(primary,exp_txt,-1,(screen_width-str_width)/2,screen_height/2,DSTF_LEFT));
86 DFBCHECK(font->GetStringWidth(font,hp_txt,-1,&str_width));
87 DFBCHECK(primary->DrawString(primary,hp_txt,-1,(screen_width-str_width)/2,(screen_height/2)+font_dsc.height,DSTF_LEFT));
88 DFBCHECK(font->GetStringWidth(font,msg1_txt,-1,&str_width));
89 DFBCHECK(primary->DrawString(primary,msg1_txt,-1,(screen_width-str_width)/2,(screen_height/2)+3*font_dsc.height,DSTF_LEFT));
90 DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
91 DFBCHECK(k_buf->WaitForEvent(k_buf));
93 /* display pictures */
97 printf("image: %s\n",argv[i]);
98 if((int)k_buf->GetEvent(k_buf,DFB_EVENT(&k_event))!=0) {
99 if(k_event.type==DIET_KEYPRESS) {
101 a=(int)k_event.key_id;
102 if(a==(int)DIKI_ESCAPE) {
106 if(a==(int)DIKI_SPACE) {
107 char *pause_txt="paused (press button to continue)";
108 DFBCHECK(font->GetStringWidth(font,pause_txt,-1,&str_width));
109 DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
110 DFBCHECK(primary->DrawString(primary,pause_txt,-1,(screen_width-str_width)/2,screen_height/2,DSTF_LEFT));
111 DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
112 DFBCHECK(k_buf->Reset(k_buf));
113 DFBCHECK(k_buf->WaitForEvent(k_buf));
114 k_event.key_id=DIKI_A; /* no longer pause! */
116 if(a==(int)DIKI_LEFT) {
118 k_event.key_id=DIKI_A; /* no longer back key! */
123 DFBCHECK(dfb->CreateImageProvider(dfb,argv[i],&img_prov));
124 DFBCHECK(img_prov->GetSurfaceDescription(img_prov,&dsc));
125 if((screen_width<dsc.width)||(screen_height<dsc.height)) {
126 float q_w=(float)(dsc.width)/screen_width;
127 float q_h=(float)(dsc.height)/screen_height;
129 dsc.width=(int)(dsc.width/q_w);
130 dsc.height=(int)(dsc.height/q_w);
132 dsc.width=(int)(dsc.width/q_h);
133 dsc.height=(int)(dsc.height/q_h);
136 DFBCHECK(dfb->CreateSurface(dfb,&dsc,&logo ));
137 DFBCHECK(img_prov->RenderTo(img_prov,logo,NULL));
138 img_prov->Release(img_prov);
140 DFBCHECK(primary->Blit(primary,logo,NULL,(screen_width-dsc.width)/2,(screen_height-dsc.height)/2));
141 DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
142 DFBCHECK(k_buf->Reset(k_buf));
143 k_buf->WaitForEventWithTimeout(k_buf,atoi(argv[1]),0);
147 } while(k_buf->GetEvent(k_buf,DFB_EVENT(&k_event))==DFB_OK);
151 k_buf->Release(k_buf);
152 keyboard->Release(keyboard);
154 primary->Release(primary);