I've put together a basic engine that moves a character around a 3D environment. I've textured the environment using the LoadGLTextures(); and AUX_RGBImageRec *LoadBMP(const char *Filename); functions (being adapted from a nehe tutorial). This all worked fine when the code was all within main.cpp. However, i've now put the functions in an include file, textures.h/textures.cpp, but now the environment won't texture.
Can anyone tell me what i'm doing wrong? i think it's because i'm not calling the function in main.cpp with a pointer and so the texture array is being created locally?
main.cpp
#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glaux.h>
#include "textures.h"
GLuint texture[7]; // Texture Array Definition
...
if (!LoadGLTextures()) // Texture Loading Routine
{
return FALSE;
}
...
// Draw Square 1
glBindTexture(GL_TEXTURE_2D, texture[0]);
glBegin(GL_QUADS);
glTexCoord2f(1.0f, 0.0f); glVertex3f(1.0, 0.0, 1.0);
glTexCoord2f(1.0f, 1.0f); glVertex3f(0.0, 0.0, 1.0);
glTexCoord2f(0.0f, 1.0f); glVertex3f(0.0, 0.0, 0.0);
glTexCoord2f(0.0f, 0.0f); glVertex3f(1.0, 0.0, 0.0);
glEnd();
// Draw Square 2
glBindTexture(GL_TEXTURE_2D, texture[1]);
glBegin(GL_QUADS);
glTexCoord2f(1.0f, 0.0f); glVertex3f(2.0, 0.0, 2.0);
glTexCoord2f(1.0f, 1.0f); glVertex3f(1.0, 0.0, 2.0);
glTexCoord2f(0.0f, 1.0f); glVertex3f(1.0, 0.0, 1.0);
glTexCoord2f(0.0f, 0.0f); glVertex3f(2.0, 0.0, 1.0);
glEnd();
etc...
#ifndef _TEXTURES_H
#define _TEXTURES_H
AUX_RGBImageRec *LoadBMP(const char *Filename);
int LoadGLTextures();
extern HDC hDC;
extern HGLRC hRC;
extern HWND hWnd;
extern HINSTANCE hInstance;
#endif
#include <windows.h>
#include <stdio.h>
#include <stdarg.h>
#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glaux.h>
#include "textures.h"
AUX_RGBImageRec *LoadBMP(const char *Filename)
{
FILE *File=NULL;
if (!Filename)
{
MessageBox(hWnd, "Error loading BMP file.", "ERROR", MB_OK);
return NULL;
}
File=fopen(Filename,"r");
if (File)
{
fclose(File);
return auxDIBImageLoad(Filename);
}
return NULL;
}
int LoadGLTextures(*texture)
{
GLuint texture[7];
// Second Texture Array Definition.
// I have to put this in because it won't compile otherwise,
// which makes me think that the array is defined locally and
// thus destroyed when the function returns????
int textures = 7; // Number Of Textures
int Status=FALSE;
AUX_RGBImageRec *TextureImage[textures];
memset(TextureImage,0,sizeof(void *)*(textures));
if ((TextureImage[0]=LoadBMP("data/textures/stonefloor.bmp")) &&
(TextureImage[1]=LoadBMP("data/textures/lights.bmp")) &&
(TextureImage[2]=LoadBMP("data/textures/up.bmp")) &&
(TextureImage[3]=LoadBMP("data/textures/back.bmp")) &&
(TextureImage[4]=LoadBMP("data/textures/front.bmp")) &&
(TextureImage[5]=LoadBMP("data/textures/left.bmp")) &&
(TextureImage[6]=LoadBMP("data/textures/right.bmp")))
{
Status=TRUE;
glGenTextures((textures), &texture[0]);
for (int loop=0; loop<textures; loop++)
{
glBindTexture(GL_TEXTURE_2D, texture[loop]);
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[loop]->sizeX, TextureImage[loop]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[loop]->data);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
}
for (int loop=0; loop<textures; loop++)
{
if (TextureImage[loop])
{
if (TextureImage[loop]->data)
{
free(TextureImage[loop]->data);
}
free(TextureImage[loop]);
}
}
}
return Status;
}
