C/C++ Programming Help Thread

how do you do this on the PSP

Code:

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  ifstream b_file ( "example.txt" );
  //Reads one string from the file
  b_file>> str;

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and how do you read the second line?(i just want to read the first word on the first line and the first word on the second line)

That's C++ like File I/O

search for C File I/O
particular fgets/fscanf

tnx i found it:)

another question , I still cant copy a file on the memory stick to another place on the memory stick

with other words: i cant read and write at the same time:(

so i was thinking , cant i set a whole file on the RAM and dump it?

what does this error mean?

pack-pbp EBOOT.PBP PARAM.SFO NULL \
NULL NULL NULL
NULL strip_program.elf NULL
rm -f strip_program.elf

Zitat:

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Zitat von dracule

what does this error mean?

pack-pbp EBOOT.PBP PARAM.SFO NULL \
NULL NULL NULL
NULL strip_program.elf NULL
rm -f strip_program.elf

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That's not an error, you'll always see that when compiling. Just the makefile cleaning up after itself I believe, when you see the rm command.

Zitat:

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Zitat von hallo007

tnx i found it:)

another question , I still cant copy a file on the memory stick to another place on the memory stick

with other words: i cant read and write at the same time:(

so i was thinking , cant i set a whole file on the RAM and dump it?

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FILE *fp1 = fopen("./file.txt", "rb"); //open a file for reading
FILE *fp2 = fopen("ms0:/file.txt", "wb");//open a file for writing

like that, then you can read and write at the same time.

or you could read it all to memory like you said and then write.

Code:

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FILE *fp = fopen("./file.txt", "rb");// open a file
//get size of file
fseek(fp, 0, SEEK_END);
int size = ftell(fp);
rewind(fp);
//create the buffer to store the file
char *buffer = malloc(size);
fread(buffer, size, 1, fp);

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also I would suggest reading up on c file IO, if you already have do again. If you knew it well enough something as simple as copying a file should be no problem.

Zitat:

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Zitat von RogueX

That's not an error, you'll always see that when compiling. Just the makefile cleaning up after itself I believe, when you see the rm command.

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then why does an eboot not appear? it creates an elf file, but no eboot.

Try adding this line to your makefile:

Code:

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EXTRA_TARGETS = EBOOT.PBP

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still not working, i got this off a tutorial, so it should work...

Zitat:

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Zitat von dracule

still not working, i got this off a tutorial, so it should work...

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Post your makefile and main.

http://www.psp-programming.com/code/...heport-lesson5

thats the tutorial i followed, and i changed some stuff in the main (just made it 2d)

Spoiler for makefile:

Code:

---

#------------------- Makefile for 'Lesson5' -------------------#
# This Makefile has been generated by VSMakefile
# Copyright (C) 2005 Florian Zitzelsberger


TARGET                        = joan
OBJS                        = ./CTimer.o ./main.o ./TGALoader.o
INCDIR                        =
LIBDIR                        =
LDFLAGS                        =
LIBS                        = -lpspgum -lpspgu -lpsprtc -lstdc++ -lm               
CFLAGS                        = -G0 -Wall
CXXFLAGS                = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS                        = $(CFLAGS)

EXTRA_TARGETS        = EBOOT.PBP
PSP_EBOOT_TITLE        = joan       
KXDIR                        = (TARGET)
KXDUMMY                        = %(TARGET)

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



run: SCEkxploit
        cp -r $(KXDIR) /cygdrive/h/PSP/GAME/
        cp -r $(KXDUMMY) /cygdrive/h/PSP/GAME/


./CTimer.o: ./CTimer.cpp
        $(CXX) $(CXXFLAGS) -c ./CTimer.cpp -o ./CTimer.o
       

./main.o: ./main.cpp
        $(CXX) $(CXXFLAGS) -c ./main.cpp -o ./main.o
       

./TGALoader.o: ./TGALoader.cpp
        $(CXX) $(CXXFLAGS) -c ./TGALoader.cpp -o ./TGALoader.o

---

Spoiler for main:

Code:

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//**************************************************************************
//                PSPGU Tutorial: 'Lesson5' - main.cpp
//**************************************************************************

#include "main.h"

PSP_MODULE_INFO("Lesson5", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);

bool exiting = false;
int fps = 0;                        // for calculating the frames per second
char *fpsDisplay;
void *dList;                        // display List, used by sceGUStart
void *fbp0;                                // frame buffer

u32 tickResolution;
u64 fpsTickNow;
u64 fpsTickLast;

float xrot = 0.0f;                // X Rotation
float yrot = 0.0f;                // Y Rotation
float zrot = 0.0f;                // Z Rotation

float dt;                                // For time based animation

unsigned int color = GU_COLOR( 1.0f, 1.0f, 1.0f, 1.0f );

CTGATexture texture;

Vertex __attribute__((aligned(16))) quad[4] =
{
        { 0, 0, color,-1.0f, 1.0f,0.0f },        // Top
        { 0, 0, color, 1.0f, 1.0f,0.0f },
        { 0, 0, color,-1.0f, -1.0f, 0.0f },
    { 0, 0, color, 1.0f,-1.0f, 0.0f}
};

int main(int argc, char **argv)
{
        fbp0  = 0;
        dList = malloc( 1024 );
        fpsDisplay = (char*) malloc( 20*sizeof(char));
        fpsDisplay = "FPS: calculating";

        sceRtcGetCurrentTick( &fpsTickLast );
        tickResolution = sceRtcGetTickResolution();

        CTimer timer;

        SetupCallbacks();
        pspDebugScreenInit();
        sceKernelDcacheWritebackAll();

        if( !texture.LoadTGA( "Data/NeHe.tga" ) ) {
                sceKernelExitGame();
        }
        texture.Swizzle();

        InitGU();
        SetupProjection();

        while( !exiting )
        {
                dt = timer.GetDeltaTime( );
                DrawScene();
                FPS();
                //sceDisplayWaitVblankStart();
                fbp0 = sceGuSwapBuffers();

        }

        sceGuTerm();                        // Terminating the Graphics System

        // Free Memory
        free( dList );
        free( fpsDisplay );

        sceKernelExitGame();        // Quits Application
        return 0;
}

void FPS( void )
{
        fps++;
        sceRtcGetCurrentTick( &fpsTickNow );
        if( ((fpsTickNow - fpsTickLast)/((float)tickResolution)) >= 1.0f )
        {
                fpsTickLast = fpsTickNow;
                sprintf( fpsDisplay, "FPS: %i", (int)fps );
                fps = 0;
        }
        pspDebugScreenSetOffset( (int)fbp0 );
        pspDebugScreenSetXY( 0, 0 );
        pspDebugScreenPrintf( fpsDisplay );

}

void InitGU( void )
{
        // Init GU
        sceGuInit();
        sceGuStart( GU_DIRECT, dList );

        // Set Buffers
        sceGuDrawBuffer( GU_PSM_8888, fbp0, 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( 65535, 0);

        // Set Render States
        sceGuScissor( 0, 0, SCR_WIDTH, SCR_HEIGHT);
        sceGuEnable( GU_SCISSOR_TEST );
        sceGuDepthFunc( GU_GEQUAL );
        sceGuEnable( GU_DEPTH_TEST );
        sceGuFrontFace( GU_CW );
        sceGuEnable( GU_CULL_FACE );                                       
        sceGuShadeModel( GU_SMOOTH );
        sceGuEnable( GU_CLIP_PLANES );
        sceGuEnable(GU_TEXTURE_2D);                                        //Enable Texture2D (NEW)

        // setup texture (NEW)
        // 32-bit image, if we swizzled the texture will return true, otherwise false (NEW)
        sceGuTexMode( GU_PSM_8888, 0, 0, texture.Swizzled() );       
        sceGuTexFunc( GU_TFX_DECAL, GU_TCC_RGB );        // Apply image as a decal (NEW)
        sceGuTexFilter( GU_LINEAR, GU_LINEAR );                // Linear filtering (Good Quality) (NEW)
        sceGuTexScale( 1.0f, 1.0f );                // No scaling
        sceGuTexOffset( 0.0f, 0.0f );
        //sceGuAmbientColor( 0xffffffff );
        //sceGuTexEnvColor( 0xffffff );

        sceGuFinish();
        sceGuSync(0,0);

        sceDisplayWaitVblankStart();
        sceGuDisplay(GU_TRUE);
        // finish
}

void SetupProjection( void )
{
        // setup matrices for the triangle
        sceGumMatrixMode(GU_PROJECTION);
        sceGumLoadIdentity();
        sceGumPerspective( 75.0f, 16.0f/9.0f, 0.5f, 1000.0f);

        sceGumMatrixMode(GU_VIEW);
        sceGumLoadIdentity();

        sceGuClearColor( GU_COLOR( 0.0f, 0.0f, 0.0f, 1.0f ) );        // 0xff554433 == cool bg color
        sceGuClearDepth(0);
       
}

void DrawScene( void )
{
        sceGuStart( GU_DIRECT, dList );                                                        // Starts the display list
               
        // clear screen
        sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);        // Clears the Color and Depth Buffer
        sceGumMatrixMode(GU_MODEL);                                                                // Selects the Model Matrix
        sceGumLoadIdentity();                                                                        // And Reset it
       
        {        // Move 1.5 units left and 3 units back
                ScePspFVector3 move = { 0.0f, 0.0f, -3.0f };
                ScePspFVector3 rot  = { xrot, yrot, zrot };                // Define rotation structure (NEW)

                sceGumTranslate( &move );                                                        // Move the Object
                sceGumRotateXYZ( &rot );                                                        // Rotate the Object (NEW)
        }

        sceGuTexImage( 0, texture.Width(), texture.Height(), texture.Width(), texture.Image() );

        // Draw Quad
        sceGumDrawArray( GU_TRIANGLES, GU_TEXTURE_32BITF|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,
                                        4, 0, quad );                                                // Draw the Cube (NEW)
        xrot+= (1.0f * dt);
        yrot+= (1.0f * dt);
        zrot+= (1.0f * dt);


        sceGuFinish();
        sceGuSync(0,0);       

}

//END OF FILE

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I was just going to start in C++, but this is the reason i never do, i always have problems compiling.

PS i named the dodads joan to see if it was changing anything (which it wasnt)
i might add also before i even changed anything, it wouldnt make a new eboot.

Zitat:

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Zitat von dracule

http://www.psp-programming.com/code/...heport-lesson5

thats the tutorial i followed, and i changed some stuff in the main (just made it 2d)

Spoiler for makefile:

Code:

---

#------------------- Makefile for 'Lesson5' -------------------#
# This Makefile has been generated by VSMakefile
# Copyright (C) 2005 Florian Zitzelsberger


TARGET                        = joan
OBJS                        = ./CTimer.o ./main.o ./TGALoader.o
INCDIR                        =
LIBDIR                        =
LDFLAGS                        =
LIBS                        = -lpspgum -lpspgu -lpsprtc -lstdc++ -lm               
CFLAGS                        = -G0 -Wall
CXXFLAGS                = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS                        = $(CFLAGS)

EXTRA_TARGETS        = EBOOT.PBP
PSP_EBOOT_TITLE        = joan       
KXDIR                        = (TARGET)
KXDUMMY                        = %(TARGET)

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



run: SCEkxploit
        cp -r $(KXDIR) /cygdrive/h/PSP/GAME/
        cp -r $(KXDUMMY) /cygdrive/h/PSP/GAME/


./CTimer.o: ./CTimer.cpp
        $(CXX) $(CXXFLAGS) -c ./CTimer.cpp -o ./CTimer.o
       

./main.o: ./main.cpp
        $(CXX) $(CXXFLAGS) -c ./main.cpp -o ./main.o
       

./TGALoader.o: ./TGALoader.cpp
        $(CXX) $(CXXFLAGS) -c ./TGALoader.cpp -o ./TGALoader.o

---

Spoiler for main:

Code:

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lol code

---

I was just going to start in C++, but this is the reason i never do, i always have problems compiling.

PS i named the dodads joan to see if it was changing anything (which it wasnt)
i might add also before i even changed anything, it wouldnt make a new eboot.

---

Code:

---

#------------------- Makefile for 'Lesson5' -------------------#

TARGET                        = LessonFive
OBJS                        = ./CTimer.o ./main.o ./TGALoader.o

INCDIR                        =
LIBDIR                        =
LDFLAGS                        =
LIBS                        = -lpspgum -lpspgu -lpsprtc -lstdc++ -lm               
CFLAGS                        = -G0 -Wall
CXXFLAGS                = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS                        = $(CFLAGS)

EXTRA_TARGETS                = EBOOT.PBP
PSP_EBOOT_TITLE                = Lesson5       

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

./CTimer.o: ./CTimer.cpp
        $(CXX) $(CXXFLAGS) -c ./CTimer.cpp -o ./CTimer.o
       
./main.o: ./main.cpp
        $(CXX) $(CXXFLAGS) -c ./main.cpp -o ./main.o
       
./TGALoader.o: ./TGALoader.cpp
        $(CXX) $(CXXFLAGS) -c ./TGALoader.cpp -o ./TGALoader.o

---

With that makefile it didn't compile an eboot?
Quite odd.
But why did you add all that stuff at the end?
like run: scekxploit and all that stuff?

Download the source/binary files from the tutorial and compile that.
If an eboot compiles then there's something wrong on your end.
If it doesn't, then the tutorial is wrong.

i didnt add any of that stuff at the end, i dontloaded the source and binary and ran make and it didnt work.
-= Double Post =-
the one you listed doesnt work either.

Im new to C so go easy on me :) Can you change the color and/or change the position of the text? thanks

I need to rotate my screen for an app iam creating cause everrything needs to be upsidedown the text the images.... EVERYTHING . how do i do that with C ?

In your VIEW matrix call sceGumRotateY(GU_PI);

well iam really really novice so: huh?

Zitat:

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Zitat von Waterbottle

also I would suggest reading up on c file IO, if you already have do again. If you knew it well enough something as simple as copying a file should be no problem.

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but the prob is I CANT COPY FROM ms0:/ TO ms0:/
godam thats already the fift time i say that , i can copy to flash but not ms0:/ to ms0:/:(

is there perhaps just a command i can use to make an eboot, because this is really annoying not being able to make an eboot.

Zitat:

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Zitat von dracule

is there perhaps just a command i can use to make an eboot, because this is really annoying not being able to make an eboot.

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What error messages are you getting if any? Do you get a new elf file?
-= Double Post =-

Zitat:

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Zitat von hallo007

but the prob is I CANT COPY FROM ms0:/ TO ms0:/
godam thats already the fift time i say that , i can copy to flash but not ms0:/ to ms0:/:(

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You should be able to. If not, copy ms0:/ to memory then memory to ms0:/. Simple.
-= Double Post =-

Zitat:

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Zitat von Insert_Witty_Name

In your VIEW matrix call sceGumRotateY(GU_PI);

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Wouldn't it be the Z axis?

i get a new elf file, but no eboot. i already posted my makefile and main

If you look in the build.mak file, it shows you how it makes the eboot. You can easily write a batch file to do the same.

Zitat:

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Zitat von BlackShark

Im new to C so go easy on me :) Can you change the color and/or change the position of the text? thanks

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I do suggest you read up on all of the six tutorials that www.psp-programming.com has. (well the six basic ones, it has fileio tuts, PSPGU tuts, etc.)

Enjoy C. :)

Zitat:

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Zitat von PSPduh

I do suggest you read up on all of the six tutorials that www.psp-programming.com has. (well the six basic ones, it has fileio tuts, PSPGU tuts, etc.)

Enjoy C. :)

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I wouldn't. Those tutorials are for learning how to program for the PSP, not learning C or C++. Go here: http://www.cprogramming.com/tutorial.html

i'm dling the psptoolchain and its been stuck at "Logging in as anonymous ... " for 20 mins
on try 7 now. can i change the dling site

Zitat:

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Zitat von yaustar

I wouldn't. Those tutorials are for learning how to program for the PSP, not learning C or C++. Go here: http://www.cprogramming.com/tutorial.html

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Well I would assume he was talking about the PSP as this is the PSP development forum.

Zitat:

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Zitat von PSPduh

Well I would assume he was talking about the PSP as this is the PSP development forum.

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Zitat:

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Im new to C so go easy on me

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I stopped reading here, my bad.

Alright, thanks guys!
Edit, also, very impressive Portfolio there Yaustar :tup:

Zitat:

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Zitat von yaustar

I stopped reading here, my bad.

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I can't tell if that's sarcasm or not. :|

Zitat:

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Zitat von PSPduh

I can't tell if that's sarcasm or not. :|

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It isn't.
-= Double Post =-

Zitat:

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Zitat von BlackShark

Alright, thanks guys!
Edit, also, very impressive Portfolio there Yaustar :tup:

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Thank you.

Zitat:

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Zitat von BlackShark

Im new to C so go easy on me :) Can you change the color and/or change the position of the text? thanks

---

Code:

---

pspDebugScreenSetTextColor(0xFFFFFF);

---

:P

I was wondering how to make a machine gun for a scrolling shooter. I have run into a problem because i can only display one bullet on the screen at once because when i try to shoot another, the variables are reset for the first one.

Main Loop:

Code:

---

int main() {
    char bullet_buffer[100];
    Image* bullet;
   
    int travel_x;
    int travel_y;
   
    pspDebugScreenInit();
    SetupCallbacks();
    initGraphics();
   
    SceCtrlData pad;
   
    sprintf(bullet_buffer, "bullet.png");
    bullet = loadImage(bullet_buffer);
   
    while(1) {
            sceCtrlReadBufferPositive(&pad, 1);
           
            clearScreen(0);
            blitAlphaImageToScreen(0, 0, 5, 20, bullet, travel_x, travel_y);

            if(pad.Buttons & PSP_CTRL_CROSS) {
                            travel_y = 260;
                            blitAlphaImageToScreen(0, 0, 5, 20, bullet, travel_x, travel_y);
            }
            travel_x = 240;
            travel_y -= 5;
           
            flipScreen();
    }
    sceKernelSleepThread();
    return 0;
}

---

Zitat:

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Zitat von CoolRaccoon

i'm dling the psptoolchain and its been stuck at "Logging in as anonymous ... " for 20 mins
on try 7 now. can i change the dling site

---

anyone? i left all night, but it didn't download 24 tries

i remember when i was seting up toolchain i had to go find mirors for half the files because they wern't there maybe you will to or you can try my toolchain.sh file http://rapidshare.com/files/12649221/toolchain.sh.html

thnx i'll tell you if it worked
-= Double Post =-
i didn't work.....:(

is there a way to use a bin2c file

Code:

---

static unsigned int size_background = 74112;
static unsigned char background[] __attribute__((aligned(16))) = {
        0x42, 0x4d, 0x20, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
.............................

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as an .c file , so it dont need to compill always ( i have some files of 100 000 lines and that takes a moment;))

Zitat:

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Zitat von CoolRaccoon

thnx i'll tell you if it worked
-= Double Post =-
i didn't work.....:(

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sorry idk then

Zitat:

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Zitat von JaSo PsP

I was wondering how to make a machine gun for a scrolling shooter. I have run into a problem because i can only display one bullet on the screen at once because when i try to shoot another, the variables are reset for the first one.

---

If you want more than one bullet at a time, you also need more then one variable (pair). So use an array of variables to store the bullets positions.
You'll also need a way to decide whether a variable in the array is already used, so you'll end up with three variables per bullet (x,y,active/used).

Zitat:

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Zitat von hallo007

s there a way to use a bin2c file
Code:

Code:

---

static unsigned int size_background = 74112; static unsigned char background[] __attribute__((aligned(16))) = { 0x42, 0x4d, 0x20, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00, .............................

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as an .c file , so it dont need to compill always ( i have some files of 100 000 lines and that takes a moment)

---

That already IS a .c file, so I don't know what you're asking.

no it's an .h file , because if you do it with .c it will give an error in cygwin
(impledict declaration of....)

Zitat:

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Zitat von hallo007

is there a way to use a bin2c file

Code:

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static unsigned int size_background = 74112;
static unsigned char background[] __attribute__((aligned(16))) = {
        0x42, 0x4d, 0x20, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
.............................

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as an .c file , so it dont need to compill always ( i have some files of 100 000 lines and that takes a moment;))

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Huh???!??

Im kinda not understanding what you are saying :P ..

Make sure u add

in main.c
#include "yourfile.c"


In the makefile

TARGET = Hi
OBJS = main.c yourfile.c




I dont understand what you were saying so i hope that helped :P