C/C++ Programming Help Thread

[Auraomega]

Just wondering, what ways can I load modules, which ones can load relative file names, and which can load relative file paths, as I can't seem to find one that does all three correctly. (Still having this problem) :Argh:

-Aura

[PSPJunkie_]

User Mode: Relative and Exact Paths
Kernel Model: Exact Paths

[Auraomega]

Is that a specific command, such as pspSdkLoadStartModule, or does it work with them all? Because I'm having problems loading in both user and kernel modes.

-Aura

[MrChaos]

What are the arguments that can be used in sceKernelSleepThread(); ?

(Lemme guess...none?)

[Auraomega]

What are the arguments that can be used in sceKernelSleepThread(); ?

(Lemme guess...none?)

Yup, is

int sceKernelSleepThread(void);

therefore meaning that nothing is required inside the brackets.

-Aura

[MrChaos]

Yup, is

int sceKernelSleepThread(void);

therefore meaning that nothing is required inside the brackets.

-Aura

It's almost the same thing as saying sceKernelSleepThread(); though.
Ok thanks.

[Auraomega]

It's almost the same thing as saying sceKernelSleepThread(); though.
Ok thanks.

Well, if you put the snippet of code that I used into your program, you will get an error (at least I think you will), thats the code contained in the pspthreadman.h file... taking a look inside the brackets indicates the required arguments, and if its void, then none are required. I was showing that code purely to prove that nothing is required... its also a good way to see what you do need for things like this in the future.

-Aura

[MrChaos]

Well, if you put the snippet of code that I used into your program, you will get an error (at least I think you will), thats the code contained in the pspthreadman.h file... taking a look inside the brackets indicates the required arguments, and if its void, then none are required. I was showing that code purely to prove that nothing is required... its also a good way to see what you do need for things like this in the future.

-Aura

Yeah, I kinda noticed that it meant nothing is required, but I was trying to figure out if there was the argument to stall it for a few seconds, but thats a different function. (Which I just found out).

[PSPJunkie_]

That's sceKernelDelayThread() for those of you who are wondering what the function is.

[slicer4ever]

k yaustar how would you solve the problem as like i said i've never come across this problem

also i'm unsure what you mean by how i am accesing it by 1d array from a 2d array

[drag_93]

I have been referred to pspprogramming.com by someone on the internet but have had heaps of problems. After downloading, when i try to set the psptoolchain up, it says that files are missing and I can't get it working. Does anyone have any ideas apart from re-downloading everything?

[PSPJunkie_]

Screenshots and/or error messages would be nice.

[xpack]

Download the pre-pspdev from my sig to help you out.
-= Double Post =-
Also theres a fix for that problem in that thread.

[hallo007]

The psptoolchain has been made to compile on linux , you wont get any errors on linux , cygwin is only a simulation or something of linux and doesnt work that good

[PSPJunkie_]

The psptoolchain has been made to compile on linux , you wont get any errors on linux , cygwin is only a simulation or something of linux and doesnt work that good

That's bull****.

Also, don't do it the easy way. Just follow this tutorial.

[SG57]

you wont get any errors on linux

Wrong. Unless that linux distro has the required libraries installed (binutils, subversion, newlib, gcc, etc.) they'll get the same error as in cygwin.

, cygwin is only a simulation or something of linux

He means to say it emulates a Linux environment...

and doesnt work that good

Strictly opinionated. Just because maybe you aren't able to comprehend the anomaly that is a 'Linux environment' doesn't mean others can not.

P.S. "and doesnt work that well"

[Mazor55]

Unless that linux distro has the required libraries installed (binutils, subversion, newlib, gcc, etc.) they'll get the same error as in cygwin.

True, but its much easier to solve in linux. For example when I did not have those libraries installed I just typed

sudo apt-get install subversion
sudo apt-get install automake

etc.

There is nothing wrong with cygwin. It is easier for a noob to install psptoolchain on Linux then on cygwin though.

[PSPJunkie_]

True, but its much easier to solve in linux. For example when I did not have those libraries installed I just typed

sudo apt-get install subversion
sudo apt-get install automake

etc.

There is nothing wrong with cygwin. It is easier for a noob to install psptoolchain on Linux then on cygwin though.

That is bull****, as well. How the hell do you think the toolchain gets the libraries? It uses wget. Same result, different application.

It is not 'much easier' at all. It may be faster as linux does not have to emulate itself, as cygwin has to emulate linux.


#1 Reason For People Failing to Install the Toolchain: Every idiot who signs on to the internet is automatically a retard and is completely too incompetent to follow a set of instructions.

It's like having a 4 year old type a college-level essay. It is the person's (Who attempted to install the toolchain and failed) fault for being such a retard and not being able to do such a simple thing.

[slicer4ever]

ok how do i solve the following problem:

ok i keep gettin an array subscript error with the following code: (bolded lines with error)

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons[actual_polygon]];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons[actual_polygon]];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons[actual_polygon]];
               }
               actual_polygon++;
          }
          number++;
     }

error:

./functions/loadxfile.txt:200: error: invalid types 'float [5000][7][1][float]'
for array subscript

i've never seen this error so any help would be appreciated

ok yauster responded that i was:

vertexs is a 2D array, you are trying to access it as a 1D array here:

vertexs[polygons[actual_polygon]]

when i responded i thought i knew what he was saying however after re-reading it i reliezed i misread it but now i understand what he is saying however i'm unsure how i am doing this

[SG57]

No need to blame your incapabilities to read and do instructions properly on the program itself ;)

float vertexs[MAX_VERTICES][7];
int *polygons;
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons][actual_polygon];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons][actual_polygon];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons][actual_polygon];
               }
               actual_polygon++;
          }
          number++;
     }

Give that a shot, however I'm not quite sure exactly your true problem/question is though...

[PSPJunkie_]

ok how do i solve the following problem:



ok yauster responded that i was:



when i responded i thought i knew what he was saying however after re-reading it i reliezed i misread it but now i understand what he is saying however i'm unsure how i am doing this

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons[actual_polygon]];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons[actual_polygon]];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons[actual_polygon]];
               }
               actual_polygon++;
          }
          number++;
     }

Okay, I tried to go over it and fix your completely obvious mistakes, but there are too many.

1.)

float vertexs[MAX_VERTICES][7];
float *vertexs;

So we have an array of MAX_VERTICES vertices each with 7 floats. Then we have a pointer to a float with the same name as our array? What is that?

2.)
We have a pointer to an int named polygons. You allocate the pointer memory, then don't assign anything to the memory. You also decide to allocate memory to vertexs. So, when you decide to assign 'test.vertexs[number][anInt]' to the 'vertexs[polygon[actual_polygon]]' you are assigning nothing to.... to nothing.

4.)
Why the hell do you have the temporary variables. Even though your loop makes as much sense as a retarded fish, you don't need them at all.

     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               test.vertexs[i][b] = vertexs[someWeird****ThatMakesNoSense];
          }
     }

5.)

float vertexs[MAX_VERTICES][7];

Is a 2D array. Notice, 'float vertexs[MAX_VERTICES][7]'. Two fields means it is a 2D array. One would be a 1D array.

That being said, this makes no sense.

               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons[actual_polygon]];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons[actual_polygon]];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons[actual_polygon]];
               }

You only used a 1D array for 'vertexs', which you defined as a 2D array.


My suggestion to you would be to read a book on C syntax and usage, then try something a bit simpler as you obviously have no idea what you are doing.

Note: There are probably more mistakes, those are just the ones that stuck out to me the most.

[SG57]

Why the hell do you have the temporary variables. Even though your loop makes as much sense as a retarded fish, you don't need them at all.

I'm not one to bad talk a beginner (as I too was one and got my fair share of beatings) but that was pretty funny... I actually laughed when reading it, and not one of those 'oh yeah... ill just put "lol" to think make him think he's funny' kind of things...

Anywho, yaustar should bud in soon and consult you directly (should you still need some help), either through here or PM.

Spoiler for life:

im so tired, im losing grip on reality right now... its all slow and its like i fall asleep and wake up real quick to realize i just fell asleep, and yet 5 words are typed that i dont remember typing... 36 hours w/ no sleep is bad for the soul

[yaustar]

FistPump highlighted something I completely missed which was the naming of two variables are exactly the same so I have even less of a clue what is going on in that code.

float vertexs[MAX_VERTICES][7];
float *vertexs;

THat should already give you one error. If not then you gave us a VERY bad code snippet.

test.vertexs[number][1]

What structure is 'test'? What is the definition of the struct? Is vertexs in this case a 1D or 2D array? If it is 1D then why are you accessing it this way?

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons[actual_polygon]];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons[actual_polygon]];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons[actual_polygon]];
               }
               actual_polygon++;
          }
          number++;
     }

That inner loop is pointless, this is what it should look like:
Should be:

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=1;b<=3;b++){
              test.vertexs[number][i] = vertexs[polygons[actual_polygon]];
              actual_polygon++;
          }
          number++;
     }}

[JaSo PsP]

Ive tried so hard to figure out why this isnt working but i cant see whats wrong. When i run it, the screen is black, not even the background is the colour i wanted. Heres the code:

window.h:

#ifndef WINDOW_H
#define WINDOW_H

#include <pspdisplay.h>
#include <pspctrl.h>
#include <pspkernel.h>
#include <pspdebug.h>
#include <pspgu.h>
#include <png.h>
#include <stdio.h>
#include "graphics.h"

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

typedef struct
{
        int Width;
        int Height;
        int X;
        int Y;
        Color color;
} WND;

class Window
{
      public:
             void Register( WND wnd );
             void DrawWindow( WND wnd );
      private:
             Image* Pane;
             Image* Frame;
             bool Registered;
};

#endif

window.cpp:

#include "window.h"

void Window::Register( WND wnd )
{
     Pane = createImage( wnd.Width, wnd.Height );
     Frame = createImage( (wnd.Width + 4), (wnd.Height + 14) );
     Registered = true;
}

void Window::DrawWindow( WND wnd )
{
     if( Registered == true )
     {
         clearImage( RGB(0, 0, 255), Frame );
         clearImage( RGB(255, 255, 255), Pane );
         blitAlphaImageToScreen( 0, 0, (wnd.Width + 4), (wnd.Height + 4), Frame, (wnd.X - 2), (wnd.Y - 12) );
         blitAlphaImageToScreen( 0, 0, wnd.Width, wnd.Height, Pane, wnd.X, wnd.Y );
     }
}

main.cpp:

#include "window.h"

PSP_MODULE_INFO( "Shell", 0, 1, 1 );

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}
/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
} 

int main()
{
    SetupCallbacks();
    initGraphics();
    
    bool exit = false;
    
    WND tes;
    
    tes.color = RGB(0, 100, 100);
    tes.Height = 70;
    tes.Width = 100;
    tes.X = 20;
    tes.Y = 20;
    
    Window test;
    
    test.Register( tes );
    
    while( exit == false )
    {
           clearScreen( RGB(0, 100, 100) );
           test.DrawWindow( tes );
           flipScreen();
    }
    
    sceKernelExitGame();
    return 0;
}

I must be missing out something, but i cant see what.

[jsharrad]

Where's your constructor / destructor?

Also IIRC, graphics.c/h doesn't actually accept a RGB argument for clearscreen, it's always 0 (black).

[JaSo PsP]

Where's your constructor / destructor?

Also IIRC, graphics.c/h doesn't actually accept a RGB argument for clearscreen, it's always 0 (black).

Hmm, ill add a constructor and destructor, but i dont think it will make a difference, the compiler didnt give any errors about my class. Your right about the background, but why cant i display the images that I have created?

[yaustar]

Where's your constructor / destructor?

Also IIRC, graphics.c/h doesn't actually accept a RGB argument for clearscreen, it's always 0 (black).

If you don't explicitly declare them in your code, they are automatically generated (ref: Gang of Four).
-= Double Post =-

Your right about the background, but why cant i display the images that I have created?

Because they are the same colour as the background?

[JaSo PsP]

If you don't explicitly declare them in your code, they are automatically generated (ref: Gang of Four).
-= Double Post =-

Because they are the same colour as the background?

No, ive sorted it now, the images created using createImage() dont work with blitAlphaImageToScreen(), i had to use blitImageToScreen() instead.

[PSPJunkie_]

FistPump highlighted something I completely missed which was the naming of two variables are exactly the same so I have even less of a clue what is going on in that code.

float vertexs[MAX_VERTICES][7];
float *vertexs;

THat should already give you one error. If not then you gave us a VERY bad code snippet.

test.vertexs[number][1]

What structure is 'test'? What is the definition of the struct? Is vertexs in this case a 1D or 2D array? If it is 1D then why are you accessing it this way?

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=0;b<3;b++){
               if(b==0){
                    test.vertexs[number][1] = vertexs[polygons[actual_polygon]];
               }else if(b==1){
                    test.vertexs[number][2] = vertexs[polygons[actual_polygon]];
               }else if(b==2){
                    test.vertexs[number][3] = vertexs[polygons[actual_polygon]];
               }
               actual_polygon++;
          }
          number++;
     }

That inner loop is pointless, this is what it should look like:
Should be:

float vertexs[MAX_VERTICES][7];
float *vertexs;
int *polygons;
vertexs  = (float*) malloc (sizeof(float)*300);
polygons = (int*) malloc (sizeof(int)*300);

int number=0;
int actual_polygon=0;
     for(int i=0;i<current_mesh;i++){
          for(int b=1;b<=3;b++){
              test.vertexs[number][i] = vertexs[polygons[actual_polygon]];
              actual_polygon++;
          }
          number++;
     }}

The variable 'number' is also pointless as the outer-loop is incremented exactly the same way. Another thing I missed was he started his array at 1, not 0.

[yaustar]

So in short, this is what we think it is supposed to look like without fixing the compiler error:

int actual_polygon = 0;
for(int i = 0; i < current_mesh; i++)
{
	for(int b = 0; b < 3; b++)
	{
		test.vertexs[i][i] = vertexs[polygons[actual_polygon]];
		actual_polygon++;
	}
}