Every time I try to execute my program I get an error:"The instruction at "0x00401585" refereced memory at "0x00000028".The memory could not be "read"". Pleas help me!
I have linked -lagl -lalleg -luser32 -lgdi32 -lopengl32 -lglu32
I can't see the problem.
:(
#include <gl\gl.h>
#include <GL\glu.h>
#include <allegro.h>
#include <alleggl.h>
int timer;
void update_timer() {
timer++;
}
END_OF_FUNCTION(update_timer);
bool light=true, fog=true;
void initGL(bool FULLSCREEN,int h,int w); // initializate openGL
void correctPerspective(GLfloat z1,GLfloat z2); // correct the perspective
void DrawScene(GLfloat X,GLfloat Y,GLfloat Z,GLfloat dist);
BITMAP* tex;
GLuint filter; // Which Filter To Use
GLuint texture[3];
const GLfloat ACC=0.003f;
const GLfloat DACC=0.002f;
void initRendering(); // in this function we enabble GL modules
int main() {
float d = - 4,rtriX=0,rtriY=0,rtriZ=0,AX=0,AY=0,AZ=0;
/* Initialize both Allegro and AllegroGL */
allegro_init();
initGL(true,1366,768);
install_keyboard();
install_timer();
LOCK_VARIABLE(timer);
LOCK_FUNCTION(update_timer);
install_int_ex(update_timer, BPS_TO_TIMER(30));
tex=load_bitmap("Crate.bmp",NULL);
GLfloat LightAmbient[]= { 0.5f, 0.5f, 0.5f, 1.0f };
GLfloat LightDiffuse[]= { 1.0f, 1.0f, 1.0f, 1.0f };
GLfloat LightPosition[]= { 1.0f, 1.0f, 1.0f, 1.0f };
float fogColor[4]={0.3,0.3,0.3,0.6};
glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient); // Setup The Ambient Light
glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse); // Setup The Diffuse Light
glLightfv(GL_LIGHT1, GL_POSITION,LightPosition); // Position The Light
glEnable(GL_LIGHT1);
//==============================================
glFogfv(GL_FOG_COLOR, fogColor);
glHint(GL_FOG_HINT, GL_NICEST);
glFogi(GL_FOG_MODE, GL_LINEAR);
glFogf(GL_FOG_DENSITY, 0.1);
glFogf(GL_FOG_START, 1.0);
glFogf(GL_FOG_END, 8.0);
//=================================================
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear color and depth
initRendering();
/* Correct the perspective */
correctPerspective(1.5f, 60.0f);
glTexEnvi(GL_TEXTURE_2D,GL_TEXTURE_ENV_MODE, GL_DECAL);
//============================
glGenTextures(3, &texture[0]); // Create Three Textures
// Create Nearest Filtered Texture
glBindTexture(GL_TEXTURE_2D, texture[0]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, 3, tex[0].w, tex[0].h, 0, GL_RGB, GL_UNSIGNED_BYTE, tex[0].dat);
// Create Linear Filtered Texture
glBindTexture(GL_TEXTURE_2D, texture[1]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, tex[0].w, tex[0].h, 0, GL_RGB, GL_UNSIGNED_BYTE, tex[0].dat);
// Create MipMapped Texture
glBindTexture(GL_TEXTURE_2D, texture[2]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, tex[0].w, tex[0].h, GL_RGB, GL_UNSIGNED_BYTE, tex[0].dat);
//============================
while(!key[KEY_ESC]) {
while( timer >0 ) {
if( key[KEY_UP] )
rtriX-=ACC;
if( key[KEY_DOWN] )
rtriX+=ACC;
else if(!key[KEY_UP] && !key[KEY_DOWN] && rtriX !=0) {
if( rtriX > 0 )
rtriX-=DACC;
if( rtriX < 0 )
rtriX+=DACC;
}
if( key[KEY_RIGHT] )
rtriY+=ACC;
if( key[KEY_LEFT] )
rtriY-=ACC;
else if(!key[KEY_LEFT] && !key[KEY_RIGHT] && rtriY !=0) {
if( rtriY > 0 )
rtriY-=DACC;
if( rtriY < 0 )
rtriY+=DACC;
}
if( key[KEY_A] )
rtriZ-=ACC;
if( key[KEY_D] )
rtriZ+=ACC;
if( !key[KEY_A] && !key[KEY_D] && rtriZ !=0) {
if( rtriZ > 0 )
rtriZ-=DACC;
if( rtriZ < 0 )
rtriZ+=DACC;
}
if(key[KEY_Z])
d+=0.1f;
if(key[KEY_X])
d-=0.1f;
if(key[KEY_I]&&key[KEY_L])
light=true;
if(key[KEY_O]&&key[KEY_L])
light=false;
if(key[KEY_I]&&key[KEY_F])
fog=true;
if(key[KEY_O]&&key[KEY_F])
fog=false;
if(key[KEY_T]&&key[KEY_1])
filter=0;
if(key[KEY_T]&&key[KEY_2])
filter=1;
if(key[KEY_T]&&key[KEY_3])
filter=2;
timer--;
}
AX=(AX+rtriX);
AY=(AY+rtriY);
AZ=(AZ+rtriZ);
DrawScene(AX,AY,AZ,d);
}
/* Wait for the user to press a key */
readkey();
/* Finished. */
return 0;
}
END_OF_MAIN();
void initRendering() {
glEnable(GL_DEPTH_TEST);
glEnable(GL_LEQUAL);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glEnable(GL_FOG);
glEnable(GL_LIGHTING);
glEnable(GL_POLYGON_SMOOTH);
glEnable(GL_LINE_SMOOTH);
// more modules...
}
void initGL(bool FULLSCREEN,int w,int h) {
install_allegro_gl();
allegro_gl_set( AGL_COLOR_DEPTH, 32 );
allegro_gl_set( AGL_Z_DEPTH, 8 );
allegro_gl_set( AGL_SUGGEST, AGL_COLOR_DEPTH | AGL_Z_DEPTH );
if(FULLSCREEN)
if(set_gfx_mode( GFX_OPENGL_FULLSCREEN, w, h, 0, 0 )) {
allegro_message( "There was an error creating the window" );
}
if(!FULLSCREEN)
if(set_gfx_mode( GFX_OPENGL_WINDOWED, w, h, 0, 0 )) {
allegro_message( "There was an error creating the window" );
}
}
void correctPerspective(GLfloat z1,GLfloat z2) {
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
float fMinX = -1.0f, fMaxX = 1.0f,
fMinY = -1.0f, fMaxY = 1.0f;
float fAspectRatio = SCREEN_W / (float)SCREEN_H;
if ( fAspectRatio > 1.0f ) {
fMinY = fMinX / fAspectRatio;
fMaxY = fMaxX / fAspectRatio;
}
else {
fMinX = fMinY * fAspectRatio;
fMaxX = fMaxY * fAspectRatio;
}
glFrustum( fMinX, fMaxX, fMinY, fMaxY, z1, z2 );
}
void DrawScene(GLfloat X,GLfloat Y,GLfloat Z,GLfloat dist) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if( light==true )
glEnable(GL_LIGHT1);
if( light==false)
glDisable(GL_LIGHT1);
if( fog==true )
glEnable(GL_FOG);
if( fog==false)
glDisable(GL_FOG);
glPushMatrix();
glTranslatef(0.0f,0.0f,dist);
glBindTexture(GL_TEXTURE_2D, texture[filter]);
glRotatef(X,1.0f,0.0f,0.0f);
glRotatef(Y,0.0f,1.0f,0.0f);
glRotatef(Z,0.0f,0.0f,1.0f);
glBegin(GL_QUADS);
glColor4f(1.0f,0.0f,0.0f,0.5f);
glNormal3f( 0.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
// Back Face
glNormal3f( 0.0f, 0.0f,1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
// Top Face
glNormal3f( 0.0f, -1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
// Bottom Face
glNormal3f( 0.0f,1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
// Right face
glNormal3f( -1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
// Left Face
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glEnd();
glPopMatrix();
glPushMatrix();
glTranslatef(0.0f,0.0f,-20.0f);
glBegin(GL_QUADS);
glColor3f(0.0f,0.0f,0.0f);
glVertex2f(-15.0f,10.0f);
glVertex2f(15.0f,10.0f);
glVertex2f(15.0f,-10.0f);
glVertex2f(-15.0f,-10.0f);
glEnd();
glPopMatrix();
allegro_gl_flip();
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