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Background image when showing the psp OSK

 
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cr_17



Joined: 19 Nov 2008
Posts: 2
Location: i donīt know
PostPosted: Wed Nov 19, 2008 7:17 am    Post subject: Background image when showing the psp OSK Reply with quote
Hi!

Does anybody knows how to show the psp OSK with a background image?

I have found some examples with custom libraries, but i need the source code to do it by myself.

Thanks.
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psPea



Joined: 01 Sep 2007
Posts: 64
PostPosted: Wed Nov 19, 2008 8:42 am    Post subject: Reply with quote
In the sdk samples you'll find the osk sample where a rotating cube is drawn in the background, so instead of drawing the cube just change it so an image image is drawn.
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cr_17



Joined: 19 Nov 2008
Posts: 2
Location: i donīt know
PostPosted: Wed Nov 19, 2008 10:00 am    Post subject: Reply with quote
Hi psPea, can you please show me an example?.

I use lib graphics.h to show images but when I tried to use it with the sdk example it always crashed.

Thanks.
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Kreationz



Joined: 18 May 2008
Posts: 53
PostPosted: Wed Nov 19, 2008 11:33 am    Post subject: Reply with quote
If you can show how your using it in your code that will go a long way toward helping or any answer is a blind guess.
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psPea



Joined: 01 Sep 2007
Posts: 64
PostPosted: Thu Nov 20, 2008 11:05 am    Post subject: Reply with quote
My bad, the osk sample doesn't have the cube its the save data sample
Quote:
I use lib graphics.h to show images but when I tried to use it with the sdk example it always crashed.
Yeah so much for the easy way, try this quick mod of the osk sample, check out the DrawStuff function.An image img.png(png format width <= 512 height <= 512) in the same folder as the eboot is needed.



Code:
#include <pspkernel.h>
#include <pspdisplay.h>
#include <pspdebug.h>
#include <pspgu.h>
#include <string.h>
#include <psputility.h>
#include <psptypes.h>
#include "graphics.h"

PSP_MODULE_INFO("OSK Sample", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);
PSP_HEAP_SIZE_KB(15*1024);

static int done = 0;

int exit_callback(int arg1, int arg2, void *common)
{
   done = 1;
   
   return 0;
}

int CallbackThread(SceSize args, void *argp)
{
   int cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
   sceKernelRegisterExitCallback(cbid);
   sceKernelSleepThreadCB();
   
   return 0;
}

int SetupCallbacks(void)
{
   int thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, PSP_THREAD_ATTR_USER, 0);
   
   if(thid >= 0)
      sceKernelStartThread(thid, 0, 0);

   return thid;
}
Image *img;
static unsigned int __attribute__((aligned(16))) list[262144];

#define BUF_WIDTH   (512)
#define SCR_WIDTH   (480)
#define SCR_HEIGHT   (272)
#define PIXEL_SIZE   (4)
#define FRAME_SIZE   (BUF_WIDTH * SCR_HEIGHT * PIXEL_SIZE)
#define ZBUF_SIZE   (BUF_WIDTH SCR_HEIGHT * 2)

#define NUM_INPUT_FIELDS   (3)
#define TEXT_LENGTH         (128)

typedef struct{

   ScePspSVector2 texture;

   ScePspSVector3 position;

} TPSVertex;


void DrawImage(Image *img, int xPos, int yPos){if (!img) return;

     sceGuTexImage(0, img->textureWidth, img->textureHeight, img->textureWidth, (void*) img->data);

 

     TPSVertex *vertices = (TPSVertex*) sceGuGetMemory(2 * sizeof(TPSVertex));

     vertices[0].texture.x = 0;

     vertices[0].texture.y = 0;

     vertices[0].position.x = xPos;

     vertices[0].position.y = yPos;

     vertices[0].position.z = 0;

 

     vertices[1].texture.x = img->imageWidth;

     vertices[1].texture.y = img->imageHeight;

     vertices[1].position.x = xPos+img->imageWidth;

     vertices[1].position.y = yPos+img->imageHeight;

     vertices[1].position.z = 0;

 

     sceGuTexMode(GU_PSM_8888, 0, 0, 0);

     sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGBA);

     sceGuTexFilter(GU_NEAREST, GU_NEAREST);

 

//     sceKernelDcacheWritebackAll();

     sceGuDrawArray(GU_SPRITES, GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D, 2, 0, vertices);

}

static void DrawStuff(void)
{

    sceGuStart(GU_DIRECT,list);

    // Clear screen   
    sceGuClearColor(0xff554433);
    sceGuClearDepth(0);
    sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);

    DrawImage(img, 0, 0);

    sceGuFinish();
    sceGuSync(0,0);


}



int main(int argc, char* argv[])
{
   SetupCallbacks();

//   initGraphics();
   img = loadImage("./img.png");
   if (img == NULL) sceKernelExitGame();
   
   sceGuInit();
   sceGuStart(GU_DIRECT,list);
   sceGuDrawBuffer(GU_PSM_8888,(void*)0,BUF_WIDTH);
   sceGuDispBuffer(SCR_WIDTH,SCR_HEIGHT,(void*)0x88000,BUF_WIDTH);
   sceGuDepthBuffer((void*)0x110000,BUF_WIDTH);
   sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
   sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
   sceGuDepthRange(0xc350,0x2710);
   sceGuScissor(0,0,SCR_WIDTH,SCR_HEIGHT);
   sceGuEnable(GU_SCISSOR_TEST);
   sceGuDepthFunc(GU_GEQUAL);
   sceGuEnable(GU_DEPTH_TEST);
   sceGuFrontFace(GU_CW);
   sceGuShadeModel(GU_FLAT);
   sceGuEnable(GU_CULL_FACE);
   sceGuEnable(GU_TEXTURE_2D);
   sceGuEnable(GU_CLIP_PLANES);
   sceGuFinish();
   sceGuSync(0,0);
   sceDisplayWaitVblankStart();
   sceGuDisplay(GU_TRUE);
   
   
   unsigned short intext[NUM_INPUT_FIELDS][TEXT_LENGTH];
   unsigned short outtext[NUM_INPUT_FIELDS][TEXT_LENGTH];
   unsigned short desc[NUM_INPUT_FIELDS][TEXT_LENGTH];
   
   memset(&intext, 0, NUM_INPUT_FIELDS * TEXT_LENGTH * sizeof(unsigned short));
   memset(&outtext, 0, NUM_INPUT_FIELDS * TEXT_LENGTH * sizeof(unsigned short));
   memset(&desc, 0, NUM_INPUT_FIELDS * TEXT_LENGTH * sizeof(unsigned short));
   
   int i;
   
   for(i = 0;i < NUM_INPUT_FIELDS;i++)
   {
      desc[i][0] = 'F';
      desc[i][1] = 'i';
      desc[i][2] = 'e';
      desc[i][3] = 'l';
      desc[i][4] = 'd';
      desc[i][5] = ' ';
      desc[i][6] = i + 48 + 1; // Convert i to ASCII value.
      desc[i][7] = 0;
      
      intext[i][0] = 'T';
      intext[i][1] = 'e';
      intext[i][2] = 'x';
      intext[i][3] = 't';
      intext[i][4] = ' ';
      intext[i][5] = i + 48 + 1; // Convert i to ASCII value.
      intext[i][6] = 0;
      
   }

   SceUtilityOskData data[NUM_INPUT_FIELDS];
   
   for(i = 0; i < NUM_INPUT_FIELDS;i++)
   {
      memset(&data[i], 0, sizeof(SceUtilityOskData));
      data[i].language = PSP_UTILITY_OSK_LANGUAGE_DEFAULT; // Use system default for text input
      data[i].lines = 1;
      data[i].unk_24 = 1;
      data[i].inputtype = PSP_UTILITY_OSK_INPUTTYPE_ALL; // Allow all input types
      data[i].desc = desc[i];
      data[i].intext = intext[i];
      data[i].outtextlength = TEXT_LENGTH;
      data[i].outtextlimit = 32; // Limit input to 32 characters
      data[i].outtext = outtext[i];
   }
   
   SceUtilityOskParams params;
   memset(&params, 0, sizeof(params));
   params.base.size = sizeof(params);
   sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_LANGUAGE, &params.base.language);
   sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_UNKNOWN, &params.base.buttonSwap);
   params.base.graphicsThread = 17;
   params.base.accessThread = 19;
   params.base.fontThread = 18;
   params.base.soundThread = 16;
   params.datacount = NUM_INPUT_FIELDS;
   params.data = data;

   sceUtilityOskInitStart(&params);

   while(!done)
   {
      DrawStuff();

      switch(sceUtilityOskGetStatus())
      {
         case PSP_UTILITY_DIALOG_INIT:
            break;
         
         case PSP_UTILITY_DIALOG_VISIBLE:
            sceUtilityOskUpdate(1);
            break;
         
         case PSP_UTILITY_DIALOG_QUIT:
            sceUtilityOskShutdownStart();
            break;
         
         case PSP_UTILITY_DIALOG_FINISHED:
            break;
            
         case PSP_UTILITY_DIALOG_NONE:
            done = 1;
            
         default :
            break;
      }

      sceDisplayWaitVblankStart();
      sceGuSwapBuffers();
   }

   pspDebugScreenInit();
   pspDebugScreenSetXY(0, 0);
   
   int j;
   
   for(i = 0; i < NUM_INPUT_FIELDS;i++)
   {
      pspDebugScreenPrintf("Field %d: ", i+1);
      
      switch(data[i].result)
      {
         case PSP_UTILITY_OSK_RESULT_UNCHANGED:
            pspDebugScreenPrintf("UNCHANGED: ");
            break;
         
         case PSP_UTILITY_OSK_RESULT_CANCELLED:
            pspDebugScreenPrintf("CANCELLED: ");
            break;
            
         case PSP_UTILITY_OSK_RESULT_CHANGED:
            pspDebugScreenPrintf("CHANGED: ");
            break;
            
         default:
            break;
      }
      
      for(j = 0; data[i].outtext[j]; j++)
      {
         unsigned c = data[i].outtext[j];
         
         if(32 <= c && c <= 127) // print ascii only
            pspDebugScreenPrintf("%c", data[i].outtext[j]);
      }
      
      pspDebugScreenPrintf("\n");
   }

   done = 0;

   while(!done)
      sceKernelDelayThread(1000);   

   sceGuTerm();
   
   sceKernelExitGame();

   return 0;
}

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