free(TextureImage[0]) function error
December 02, 2004 03:51 PM
When I try to compile the following code, I always get an error saying "implicit declaration of function int free(...)" What am I doing wrong?
if (TextureImage[0]) // If Texture Exists
{
if (TextureImage[0]->data) // If Texture Image Exists
{
free(TextureImage[0]->data); // Free The Texture Image Memory
}
free(TextureImage[0]); // Free The Image Structure
}
660
December 03, 2004 06:28 AM
To include malloc and free, you just need to do:
#include <stdlib.h>
“[The clergy] believe that any portion of power confided to me, will be exerted in opposition to their schemes. And they believe rightly: for I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man” - Thomas Jefferson
122
December 03, 2004 10:19 AM
Did you write those lines in a function or out of everything? Some days I tried to call a function before entering the winMain function and I got nearly the same error.
December 04, 2004 08:02 AM
for some reason stdlib.h wasn't in my comp, after reinstalling it, I was able to compile the program with an error
December 05, 2004 09:51 AM
one more thing, How do I load mutliple textures?
Every time I try, I the progarm compiles but dosen't run
Every time I try, I the progarm compiles but dosen't run
December 06, 2004 06:31 AM
QUOTE{
TextureImage[0]
}ETOUQ
Arrays are evil....Just as evil as overloading the operator[]
TextureImage[0]
}ETOUQ
Arrays are evil....Just as evil as overloading the operator[]
December 08, 2004 04:42 PM
ok, so if I want to laod one texture I would use the following code,
But when I try to add a second texture,
It dosen't work
if (TextureImage[0]=LoadBMP("Pic1.bmp")) { Status=TRUE; // Set The Status To TRUE glGenTextures(2, &texture[0]); glBindTexture(GL_TEXTURE_2D, texture[0]); glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); } if (TextureImage[0]) // If Texture Exists { if (TextureImage[0]->data) { free(TextureImage[0]->data); } free(TextureImage[0]); }But when I try to add a second texture,
if (TextureImage[0]=LoadBMP("Pic2.bmp")) { Status=TRUE; // Set The Status To TRUE glGenTextures(2, &texture[1]); glBindTexture(GL_TEXTURE_2D, texture[2]); glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[1]->sizeX, TextureImage[1]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[1]->data); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); } if (TextureImage[1]) // If Texture Exists { if (TextureImage[1]->data) { free(TextureImage[1]->data); } free(TextureImage[1]); }It dosen't work
1,410
December 08, 2004 06:03 PM
Two errors there (possibly three).
Enigma
- TextureImage[0]=LoadBMP("Pic1.bmp")
...
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[1]->sizeX, TextureImage[1]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[1]->data);
You load the texture into TextureImage[0] but access it from TextureImage[1] - glBindTexture(GL_TEXTURE_2D, texture[2]);
You bind texture[2] when you probably want texture[1]. It's not necessarily an error, but it's odd. - Are your arrays big enough? Both TextureImage and texture need to be big enough for at least two elements the way you are doing things.
Enigma
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