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SDL Image viewer... another problems! :(

 
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darkness



Joined: 15 Jun 2008
Posts: 121
PostPosted: Sat Jul 19, 2008 11:35 pm    Post subject: SDL Image viewer... another problems! :( Reply with quote
Excuse me for the many post, but I've ever strange problem!! :(
I've writed a Image viewer using SDL, but it crash when I try to resize the image!!!!
Here is the code:
Code:

int Image_viewer(char* target, char* est)
{
    SDL_Surface* screen = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_ASYNCBLIT);
   
    SDL_ShowCursor(0);
   
    SDL_Surface* back = NULL;
   
    SDL_RWops *rwfile = NULL;
   
    SDL_Surface* background = NULL;
   
    FILE *fp = NULL;
   
    Uint32 black;

    black = SDL_MapRGB(screen->format, 0, 0, 0);
   
    SDL_Rect offset;
   
    SceCtrlLatch pad1;
    SceCtrlData pad2;
   
    sceCtrlSetSamplingCycle(0);
    sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
   
    fp = fopen(target, "rb");
           
    rwfile = SDL_RWFromFP(fp, 1);

    if(rwfile==NULL)
    {
        Init();
        printf("\nErrore nella lettura del file!\n%s", SDL_GetError());
        sleep(3000000);
        SDL_FreeSurface(screen);
        SDL_FreeRW(rwfile);
        SDL_Quit();
        return 1;
    }

    //Load the image

    if(strcmp(est, "BMP")==0) back = SDL_LoadBMP_RW(rwfile, 1);

    if((strcmp(est, "PNM")==0)
            || (strcmp(est, "PPM")==0)
            || (strcmp(est, "PGM")==0)
            || (strcmp(est, "PBM")==0)) back = IMG_LoadPNM_RW(rwfile);

    if(strcmp(est, "XPM")==0) back = IMG_LoadXPM_RW(rwfile);

    if(strcmp(est, "XCF")==0) back = IMG_LoadXCF_RW(rwfile);

    if(strcmp(est, "PCX")==0) back = IMG_LoadPCX_RW(rwfile);

    if(strcmp(est, "GIF")==0) back = IMG_LoadGIF_RW(rwfile);

    if((strcmp(est, "JPG")==0) || (strcmp(est, "JPEG")==0)
            || (strcmp(est, "JPE")==0)) back = IMG_LoadJPG_RW(rwfile);

    if((strcmp(est, "TIF")==0) || (strcmp(est, "TIFF")==0)) back = IMG_LoadTIF_RW(rwfile);

    if(strcmp(est, "PNG")==0) back = IMG_LoadPNG_RW(rwfile);

    if(strcmp(est, "TGA")==0) back = IMG_LoadTGA_RW(rwfile);

    if(strcmp(est, "LBM")==0) back = IMG_LoadLBM_RW(rwfile);

    if(back == NULL )
    {
        Init();
        printf("\nErrore durante il caricamento dell'immagine\n o formato non supportato\n\n%s", SDL_GetError());
        sleep(3000000);
        SDL_FreeSurface(back);
        SDL_FreeSurface(screen);
        SDL_RWclose(rwfile);
        SDL_FreeRW(rwfile);
        SDL_Quit();
        return 1;
    }
    SDL_RWclose(rwfile);
    SDL_FreeRW(rwfile);
   
    int off_x=0;
   
    int off_y=0;
   
/*
    char* new_target = (char*)malloc(256);
   
    char* new_est = (char*)malloc(8);
   
    strcpy(new_target, target);
    strcpy(new_est, est);
   
    int immagine = 0;
*/
   
    double angle=0.000000;
   
    double scale_x=1.000000;
   
    double scale_y=1.000000;
   
    int custom_param=0;
   
    int custom_pos_x=0;
   
    int custom_pos_y=0;
   
    int custom_angle=0;
   
    int rotate_param=0;
   
    int start_scale_x=0;
   
    int start_scale_y=0;
   
    int first_boot=1;
   
    int moving=0;
   
    int allow_custom_pos_x=0;
   
    int allow_custom_pos_y=0;

    int refresh=1;
   
    // int newimage=1;
   
    while(running())
    {
        #include "Image_viewer/pressione_tasto.c"
       
        SDL_FillRect(screen, NULL, black);

        if(!moving)
        {
            if(custom_param!=1)
            {
                if(rotate_param==0)
                {
                    scale_x=(272/scale_y);
                    scale_y=(272/scale_y);
                }
                else
                {
                    scale_x=(272/scale_x);
                    scale_y=(272/scale_x);
                }
            }

            if(first_boot)
            {
                start_scale_x = scale_x;
                start_scale_y = scale_y;
            }

            if(custom_angle!=1)
            {
                angle = 0.000000;
            }
           
            background = rotozoomSurfaceXY(back, angle, scale_x, scale_y, 0); // <---- Here the programm crash!!!!!!!!!!!!!
           
            if(custom_pos_x==0)
            {
                off_x = ( screen->w - background->w ) / 2;
            }
            if(custom_pos_y==0)
            {
                off_y = ( screen->h - background->h ) / 2;
            }
        }
        if(background->w > screen->w)
        {
            allow_custom_pos_x=1;
        }
        else
        {
            allow_custom_pos_x=0;
        }
       
        if(background->h > screen->h)
        {
            allow_custom_pos_y=1;
        }
        else
        {
            allow_custom_pos_y=0;
        }
       
        offset.x = off_x;
        offset.y = off_y;
       
        //Blit the surface
        SDL_BlitSurface( background, NULL, screen, &offset );

        SDL_Flip(screen);
       
        SDL_FreeSurface(background);

        first_boot=0;
    }
    SDL_FreeSurface(screen);
    SDL_FreeSurface(back);
   
    //free(new_target);
    //free(new_est);
   
    SDL_Quit();
    return 0;
}


And here is the code included ( pressione_tasto.c )
Code:

sceCtrlReadLatch(&pad1);
        sceCtrlReadBufferPositive(&pad2, 1);
       
        if(pad1.uiMake==PSP_CTRL_CIRCLE)
        {
            SDL_FreeSurface(background);
            printf("sdkofjhdskfh");
            break;
        }
        if(pad1.uiMake==PSP_CTRL_CROSS)
        {
            moving=0;
            custom_param=0;
            custom_pos_x=0;
            custom_pos_y=0;
            refresh=1;
        }
        if(pad1.uiMake==PSP_CTRL_UP)
        {
            custom_angle=1;
            if(rotate_param==0) rotate_param=1;
            else rotate_param=0;
            angle+=90;
            refresh=1;
            moving=0;
        }
        if(pad1.uiMake==PSP_CTRL_DOWN)
        {
            custom_angle=1;
            if(rotate_param==0) rotate_param=1;
            else rotate_param=0;
            angle-=90;
            refresh=1;
            moving=0;
        }
        if(pad1.uiMake==PSP_CTRL_LTRIGGER)
        {
            if(scale_x>=0.2)
            {
                custom_param=1;
                scale_x-=0.2;
                scale_y-=0.2;
                refresh=1;
                moving=0;
            }
        }
        if(pad1.uiMake==PSP_CTRL_RTRIGGER)
        {
            if(scale_x<start_scale_x+1.500000)
            {
                custom_param=1;
                scale_x+=0.2;
                scale_y+=0.2;
                refresh=1;
                moving=0;
            }
        }
       
        if(pad2.Lx > 128 + 80)
        {
            if(allow_custom_pos_x==1)
            {
                custom_pos_x=1;
                if(off_x>(background->w - screen->w)-((background->w - screen->w)*2)) off_x-=10;
                refresh=1;
                moving=1;
            }
        }
        else if(pad2.Ly > 128 + 80)
        {
            if(allow_custom_pos_y==1)
            {
                custom_pos_y=1;
                if(off_y>(background->h - screen->h)-((background->h - screen->h)*2)) off_y-=10;
                refresh=1;
                moving=1;
            }
        }
        else if(pad2.Lx < 128 - 80)
        {
            if(allow_custom_pos_x==1)
            {
                custom_pos_x=1;
                if(off_x<0) off_x+=10;
                refresh=1;
                moving=1;
            }
        }
        else if(pad2.Ly < 128 - 80)
        {
            if(allow_custom_pos_y==1)
            {
                custom_pos_y=1;
                if(off_y<0) off_y+=10;
                refresh=1;
                moving=1;
            }
        }
        else moving = 0;

I've haven't found a error!
I've to call this function everytime that I want to use it!
( yesterday this code works great, but now it crash!!! Maybe I've modified somethings... I don't remember! and I don't know why now I get a error! )
Please help... :(

Thanks
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darkness



Joined: 15 Jun 2008
Posts: 121
PostPosted: Sat Jul 19, 2008 11:42 pm    Post subject: Reply with quote
The problem is the rotozoomSurfaceXY funct! The PSP crash in this funct!
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Sun Jul 20, 2008 5:06 am    Post subject: Reply with quote
I'd say the scale factor is borked. A quick look at the code shows the scale is probably not calculated right. I'd print the arguments, wait a few seconds, then do the rotowhatzits so you can see what is being passed to it when it explodes.
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darkness



Joined: 15 Jun 2008
Posts: 121
PostPosted: Mon Jul 21, 2008 4:01 am    Post subject: Reply with quote
I've try to scale the image with a fixed value, but it still crash!!
Code:

int Image_viewer(char* target, char* est)
{
    SDL_Surface* screen = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_ASYNCBLIT);
   
    SDL_ShowCursor(0);
   
    SDL_Surface* back = NULL;
   
    SDL_RWops *rwfile = NULL;
   
    SDL_Surface* background = NULL;
   
    FILE *fp = NULL;
   
    Uint32 black;

    black = SDL_MapRGB(screen->format, 0, 0, 0);
   
    SDL_Rect offset;
   
    SceCtrlLatch pad1;
    SceCtrlData pad2;
   
    sceCtrlSetSamplingCycle(0);
    sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
   
    fp = fopen(target, "rb");
           
    rwfile = SDL_RWFromFP(fp, 1);

    if(rwfile==NULL)
    {
        Init();
        printf("\nErrore nella lettura del file!\n%s", SDL_GetError());
        sleep(3000000);
        SDL_FreeSurface(screen);
        SDL_FreeRW(rwfile);
        SDL_Quit();
        return 1;
    }

    //Load the image

    if(strcmp(est, "BMP")==0) back = SDL_LoadBMP_RW(rwfile, 1);

    if((strcmp(est, "PNM")==0)
            || (strcmp(est, "PPM")==0)
            || (strcmp(est, "PGM")==0)
            || (strcmp(est, "PBM")==0)) back = IMG_LoadPNM_RW(rwfile);

    if(strcmp(est, "XPM")==0) back = IMG_LoadXPM_RW(rwfile);

    if(strcmp(est, "XCF")==0) back = IMG_LoadXCF_RW(rwfile);

    if(strcmp(est, "PCX")==0) back = IMG_LoadPCX_RW(rwfile);

    if(strcmp(est, "GIF")==0) back = IMG_LoadGIF_RW(rwfile);

    if((strcmp(est, "JPG")==0) || (strcmp(est, "JPEG")==0)
            || (strcmp(est, "JPE")==0)) back = IMG_LoadJPG_RW(rwfile);

    if((strcmp(est, "TIF")==0) || (strcmp(est, "TIFF")==0)) back = IMG_LoadTIF_RW(rwfile);

    if(strcmp(est, "PNG")==0) back = IMG_LoadPNG_RW(rwfile);

    if(strcmp(est, "TGA")==0) back = IMG_LoadTGA_RW(rwfile);

    if(strcmp(est, "LBM")==0) back = IMG_LoadLBM_RW(rwfile);

    if(back == NULL )
    {
        Init();
        printf("\nErrore durante il caricamento dell'immagine\n o formato non supportato\n\n%s", SDL_GetError());
        sleep(3000000);
        SDL_FreeSurface(back);
        SDL_FreeSurface(screen);
        SDL_RWclose(rwfile);
        SDL_FreeRW(rwfile);
        SDL_Quit();
        return 1;
    }
    SDL_RWclose(rwfile);
    SDL_FreeRW(rwfile);
   
    int off_x=0;
   
    int off_y=0;
   
/*
    char* new_target = (char*)malloc(256);
   
    char* new_est = (char*)malloc(8);
   
    strcpy(new_target, target);
    strcpy(new_est, est);
   
    int immagine = 0;
*/
   
    double angle=0.000000;
   
    double scale_x=1.000000;
   
    double scale_y=1.000000;
   
    int custom_param=0;
   
    int custom_pos_x=0;
   
    int custom_pos_y=0;
   
    int custom_angle=0;
   
    int rotate_param=0;
   
    int start_scale_x=0;
   
    int start_scale_y=0;
   
    int first_boot=1;
   
    int moving=0;
   
    int allow_custom_pos_x=0;
   
    int allow_custom_pos_y=0;

    int refresh=1;
   
    // int newimage=1;
   
    while(running())
    {
        #include "Image_viewer/pressione_tasto.c"
       
        SDL_FillRect(screen, NULL, black);

        if(!moving)
        {
            if(custom_param!=1)
            {
                if(rotate_param==0)
                {
                    scale_x=(272/scale_y);
                    scale_y=(272/scale_y);
                }
                else
                {
                    scale_x=(272/scale_x);
                    scale_y=(272/scale_x);
                }
            }

            if(first_boot)
            {
                start_scale_x = scale_x;
                start_scale_y = scale_y;
            }

            if(custom_angle!=1)
            {
                angle = 0.000000;
            }
            Init();
            printf("Before scale");
           
            background = rotozoomSurfaceXY(back, 0, 1.00, 1.00, 1); // <---- Here the programm crash!!!!!!!!!!!!!
           
            printf("After scale");
            sleep(1000000);
           
            if(custom_pos_x==0)
            {
                off_x = ( screen->w - background->w ) / 2;
            }
            if(custom_pos_y==0)
            {
                off_y = ( screen->h - background->h ) / 2;
            }
        }
        if(background->w > screen->w)
        {
            allow_custom_pos_x=1;
        }
        else
        {
            allow_custom_pos_x=0;
        }
       
        if(background->h > screen->h)
        {
            allow_custom_pos_y=1;
        }
        else
        {
            allow_custom_pos_y=0;
        }
       
        offset.x = off_x;
        offset.y = off_y;
       
        //Blit the surface
        SDL_BlitSurface( background, NULL, screen, &offset );

        SDL_Flip(screen);
       
        SDL_FreeSurface(background);

        first_boot=0;
    }
    SDL_FreeSurface(screen);
    SDL_FreeSurface(back);
   
    //free(new_target);
    //free(new_est);
   
    SDL_Quit();
    return 0;
}
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Jim



Joined: 02 Jul 2005
Posts: 487
Location: Sydney
PostPosted: Mon Jul 21, 2008 11:39 pm    Post subject: Reply with quote
And
http://forums.ps2dev.org/viewtopic.php?t=10658
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darkness



Joined: 15 Jun 2008
Posts: 121
PostPosted: Tue Jul 22, 2008 2:37 am    Post subject: Reply with quote
?? I haven't found a solution! And I'm not use a freemem funct! It crash the first time that the function is called!
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Jim



Joined: 02 Jul 2005
Posts: 487
Location: Sydney
PostPosted: Tue Jul 22, 2008 8:07 am    Post subject: Reply with quote
I'm trying to point out you're both using the same scale function and both having the same bug. Looks a bit like the library itself needs fixing. I think J.F alluded to that too. It's worth grabbing the code from svn and seeing what's wrong.

Jim
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