josh/wfobj-view
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

build mipmaps with GLU for texture shader

Browse Source
This commit is contained in:
Josh Holtrop 2011-05-16 16:26:07 -04:00
parent ab56320889
commit e53e626a63
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
wfobj-view.cc
View File

@ -51,9 +51,18 @@ static GLuint load_texture(const char *fname)
GLuint id = loadTexture(fname);
if (id != 0)
{
int width, height;
glBindTexture(GL_TEXTURE_2D, id);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
char *data = (char *) malloc(4 * width * height);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, width, height, GL_RGBA,
GL_UNSIGNED_BYTE, data);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
free(data);
}
return id;
}