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Image Blitting on 3.71

 
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kid101skater



Joined: 20 Jun 2007
Posts: 26
PostPosted: Thu Oct 18, 2007 8:08 am    Post subject: Image Blitting on 3.71 Reply with quote
Hello. i origionally dev'd for psp 1.50 and did some 2.8 projects... such as flashers, games and shells... and some little other things. anyways to the point. im trying to start on 3.71 and for some reason i cant get the damn graphics to load even simpily. i have this code below to load the image

Main.c
Code:


#include <kubridge.h>
#include <pspkernel.h>
#include <psppower.h>
#include <pspdebug.h>
#include <pspctrl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <pspiofilemgr.h>
#include <pspdisplay.h>
#include <psputility.h>
#include <pspgu.h>
#include <pspgum.h>
#include <malloc.h>
#include <stdarg.h>
#include "framebuffer.h"
#include "graphics.h"
#include <math.h>
#include <png.h>
#include <pspsdk.h>


#define SCREEN_WIDTH 480
#define SCREEN_HEIGHT 272
#define DATA_WIDTH     240
#define DATA_HEIGHT       136
#define LINESIZE       512            //in short
#define FRAMESIZE      0xAA000         //in byte

#define printf pspDebugScreenPrintf
#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))

PSP_MODULE_INFO("test", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(PSP_THREAD_ATTR_USER);

#define printf    pspDebugScreenPrintf
#define RGB(r, g, b) ((r)|((g)<<8)|((b)<<16))


void ErrorExit(int milisecs, char *fmt, ...)
{
   va_list list;
   char msg[256];   

   va_start(list, fmt);
   vsprintf(msg, fmt, list);
   va_end(list);

   printf(msg);
   
   sceKernelDelayThread(milisecs*1000);
   sceKernelExitGame();
}


int main(void)
{
   
   pspDebugScreenInit();
   initGraphics();
   SceCtrlData pad;
   
   
    Image* player = loadImage("player.png");

    while(1){
       printf(" Loading player \n");
       blitAlphaImageToScreen(0, 0, 60, 60, player, 60, 60);
       flipScreen();
       printf("loaded correctly =] /n");
       }
}





Makefile
Code:


TARGET = Tester
OBJS = main.o graphics.o framebuffer.o

INCDIR = ./include
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS) -c

LIBDIR = ./lib
LDFLAGS =
LIBS = -lpspkubridge -lpspgu -lpng -lz -lm -lpsppower

PSP_FW_VERSION = 371

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Tester

BUILD_PRX = 1

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Thu Oct 18, 2007 12:00 pm    Post subject: Reply with quote
Talk about hammerimg the graphics. You're trying to blit the image as fast as humanly possible. Operations like this usually fail when trying to do that. As a test, you probably just want to do this:

Code:
    printf(" Loading player \n");
    blitAlphaImageToScreen(0, 0, 60, 60, player, 60, 60);
    flipScreen();
    printf("loaded correctly =] /n");
    sceKernelDelayThread(10*1000*1000); // wait 10 seconds


No while loop. If you want to keep the while loop, slow it down. Wait on the vert blank or something.
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