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PSPGL errors?

 
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psiko_scweek



Joined: 12 Nov 2005
Posts: 42
PostPosted: Wed Oct 03, 2007 2:19 pm    Post subject: PSPGL errors? Reply with quote
Alright just for fun, im trying to port an application to the PSP and im getting the following errors:

undefined reference to 'gluOrtho2D'
undefined reference to 'glVertex2s'
undefined reference to 'gluGetString'

as well as others.

Now I know they are all coming from PSPGL, does PSPGL support those functions and if so, what should the first location I should go to, to help solve those issues?
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danzel



Joined: 04 Nov 2005
Posts: 182
PostPosted: Wed Oct 03, 2007 6:23 pm    Post subject: Reply with quote
PSPGL is incomplete in some areas, particularly things that are un-needed.

gluOrtho2D is replaceable with glOrtho (with modifications)
glVertex2s should be able to be replaced with glVertex2f.
gluGetString is a tougher one, will depend what it is being used for.

What are you porting?
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.::Albandu51::.



Joined: 04 Oct 2007
Posts: 12
PostPosted: Thu Oct 04, 2007 12:39 am    Post subject: Reply with quote
hello
Sorry for my language,i am French ^^

I have a problem me too !


see my screen:


After modify with gluOrtho2D see :


This is my code:
Code:
#include <GL/glut.h>    // Header File For The GLUT Library
#include <GL/gl.h>   // Header File For The OpenGL32 Library
#include <GL/glu.h>   // Header File For The GLu32 Library
//#include <unistd.h>     // Header file for sleeping. @@@
#include <stdio.h>      // Header file for standard file i/o.
#include <stdlib.h>     // Header file for malloc/free.
#include <math.h>       // Header file for trigonometric functions.
#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <pspuser.h>
#include <pspctrl.h>
//#include <unistd.h>     // Header file for sleeping. @@@

#define LARGEUR_BASE 50
#define HAUTEUR_BASE 20

#define LARGEUR_BRAS_1 150
#define HAUTEUR_BRAS_1 15

#define LARGEUR_BRAS_2 50
#define HAUTEUR_BRAS_2 10

#define TAILLE_CAISSE 10

#define LARGEUR_ECRAN 480
#define HAUTEUR_ECRAN 272

int angle1 = 45;
int angle2 = -20;
int longueur = 50;



PSP_MODULE_INFO("Alban", 0x0, 1, 1);

PSP_MAIN_THREAD_ATTR(0);

void Dessiner();

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

    SDL_Init(SDL_INIT_VIDEO);
    atexit(SDL_Quit);

    SDL_SetVideoMode(LARGEUR_ECRAN, HAUTEUR_ECRAN, 32, SDL_OPENGL);

    glMatrixMode( GL_PROJECTION );
    glLoadIdentity( );
    gluOrtho2D(0,LARGEUR_ECRAN,0,HAUTEUR_ECRAN);

int continuer = 1;

    Dessiner();
   
    int angle;
           
    SceCtrlData pad;

    while(continuer)
    {
   sceCtrlReadBufferPositive(&pad, 1);

  switch (pad.Buttons)
    {                                                                   
           case PSP_CTRL_UP :
               longueur --;
                if (longueur < 10)
                    longueur = 10;
                break;
                case PSP_CTRL_DOWN:
                longueur ++;
                if (longueur > 100)
                    longueur = 100;
                break;
                case PSP_CTRL_LEFT:
                if (angle==1)
                {
                    angle1++;
                    if (angle1 > 90)
                        angle1 = 90;
                }
                else
                {
                    angle2++;
                }
                break;
                 case PSP_CTRL_RIGHT:
                if (angle==1)
                {
                    angle1--;
                    if (angle1 < 10)
                        angle1 = 10;
                }
                else
                {
                    angle2--;
                    if (angle2 < -90)
                        angle2 = -90;
                }
                break;
                case PSP_CTRL_RTRIGGER:
                angle = 1;
                break;
                            }
        Dessiner();
    }



    return 0;
}

/*
    Dessine un rectangle avec comme point de reférence
    le milieu du coté gauche
*/
void dessineRectangle(double largeur,double hauteur)
{
    glBegin(GL_QUADS);
    glVertex2d(0,-hauteur/2);
    glVertex2d(0,hauteur/2);
    glVertex2d(largeur,hauteur/2);
    glVertex2d(largeur,-hauteur/2);
    glEnd();
}

/*
    Dessine le repère actuel pour faciliter
    la compréhension des transformations.
    Utiliser "echelle" pour avoir un repère bien orienté et positionné
    mais avec une échelle différente.
*/
void dessinerRepere(unsigned int echelle = 1)
{
    glPushMatrix();
    glScaled(echelle,echelle,echelle);
    glBegin(GL_LINES);
    glColor3ub(0,0,255);
    glVertex2i(0,0);
    glVertex2i(1,0);
    glColor3ub(0,255,0);
    glVertex2i(0,0);
    glVertex2i(0,1);
    glEnd();
    glPopMatrix();
}

void Dessiner()
{
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

    glMatrixMode( GL_MODELVIEW );
    glLoadIdentity( );

    /* Je déplace mon répère initial (actuellement
    en bas à gauche de l'écran) */
    glTranslatef(LARGEUR_BASE/2,HAUTEUR_BASE,0);

    // La base
    glColor3ub(254,128,1);
    dessineRectangle(LARGEUR_BASE,HAUTEUR_BASE);

    //Je me place en haut au milieu de la base
    glTranslatef(LARGEUR_BASE/2,HAUTEUR_BASE/2,0);

    // Le grand bras
    glRotatef(angle1,0,0,1);
    glColor3ub(248,230,7);
    dessineRectangle(LARGEUR_BRAS_1,HAUTEUR_BRAS_1);

    // Je me place au bout du grand bras
    glTranslatef(LARGEUR_BRAS_1,0,0);

    // Puis m'occupe du petit bras
    glRotatef(angle2,0,0,1);
    glColor3ub(186,234,21);
    dessineRectangle(LARGEUR_BRAS_2,HAUTEUR_BRAS_2);

    // Je me place au bout du petit bras
    glTranslatef(LARGEUR_BRAS_2,0,0);
    /* J'annule les rotations pour avoir mon repère aligné
    avec le repère d'origine */
    glRotatef(-angle1-angle2,0,0,1);

    // Je dessine le fil
    glColor3ub(255,255,255);
    glBegin(GL_LINES);
    glVertex2i(0,0);
    glVertex2i(0,-longueur);
    glEnd();

    /* Je descends en bas du fil (avec un petit décalage
    sur X pour anticiper le dessin de la caisse */
    glTranslatef(-TAILLE_CAISSE/2,-longueur,0);

    // Et je dessine enfin la caisse
    glColor3ub(175,175,85);
    dessineRectangle(TAILLE_CAISSE,TAILLE_CAISSE);

    glFlush();
    SDL_GL_SwapBuffers();
}
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quadrizo



Joined: 23 Aug 2007
Posts: 21
PostPosted: Thu Oct 04, 2007 1:52 am    Post subject: Reply with quote
it's glOrtho and not glOrtho2d
and need to link with -lpspvfpu i think
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.::Albandu51::.



Joined: 04 Oct 2007
Posts: 12
PostPosted: Thu Oct 04, 2007 2:42 am    Post subject: Reply with quote
Ok thank's
But i put
Code:
glOrtho(0,LARGEUR_ECRAN,0,HAUTEUR_ECRAN);

And == no compile xD
see:


After i put
Code:
glOrtho(0,LARGEUR_ECRAN,0,HAUTEUR_ECRAN,0,0);

and == no compile
see:


Help me please ^^
Thanks you
(Sorry for my language, i am french and i have 14 years old ) i write a little english
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quadrizo



Joined: 23 Aug 2007
Posts: 21
PostPosted: Thu Oct 04, 2007 2:48 am    Post subject: Reply with quote
french:
pour que ce soit clair
l'erreur ne vient pas de ton code mais du linkage c'est a dire qu'il te dit qu'il ne trouve pas dans les librairies la fonction "sceRtc.." donc il faut que tu ajoutes la bonne librairies surement "-lpsprtc"



the error is not in the code but in the linkage ...
you need to add the rtc lib : -lpsprtc
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.::Albandu51::.



Joined: 04 Oct 2007
Posts: 12
PostPosted: Thu Oct 04, 2007 2:54 am    Post subject: Reply with quote
Thank's you !
The code compile ^^ but not fonction on psp ( screen black + freeze ) xD
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Thu Oct 04, 2007 6:15 am    Post subject: Reply with quote
.::Albandu51::. wrote:
Thank's you !
The code compile ^^ but not fonction on psp ( screen black + freeze ) xD


Your code isn't set to use the vfpu. You need

Code:
PSP_MAIN_THREAD_ATTR(PSP_THREAD_ATTR_VFPU | PSP_THREAD_ATTR_USER);
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psiko_scweek



Joined: 12 Nov 2005
Posts: 42
PostPosted: Thu Oct 04, 2007 11:25 am    Post subject: ok.... Reply with quote
Alright, thanks for the advice so far. I have either just removed the trouble code or converted it to what works. Just a few questions:

I am still getting errors with the following OpenGL commands.

glPixelMapfv
gluOrtho2D
glPixelTransferi

alright any suggestions about those? I know you said that gluOrtho2D can be subbed for gluOrtho with some modifying and I did see some samples on how to try that. Are the other two commands supported by PSPGL?

Thanks!
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