Texture::Texture(const std::string& fileName, bool allowNPOT)
: m_nativeIds(0)
, m_width(0)
, m_height(0)
, m_bpp(0)
, m_data(0)
, m_numNativeIds(1)
{
m_nativeIds = (unsigned int*)new int[m_numNativeIds];
glGenTextures(m_numNativeIds, m_nativeIds);
if( false == esLoadPNG(fileName.c_str(), 0, &m_width, &m_height, &m_bpp ) )
{
return;
}
if( allowNPOT==false && !isNpotSquare(m_width,m_height) )
{
esLogEngineDebug("Image %s, is not NPOT Square texture (w:%d, h:%d, bpp:%d)",
fileName.c_str(), m_width, m_height, m_bpp );
}
m_data = new unsigned char[m_width*m_height*m_bpp];
if( false == esLoadPNG(fileName.c_str(), m_data, &m_width, &m_height, &m_bpp ) )
{
return;
}
esLogEngineDebug("[%s] Image loaded w:%d, h:%d, bpp:%d", __FUNCTION__, m_width, m_height, m_bpp);
setData(m_data,m_width,m_height,m_bpp,0);
}
///
// Load texture from disk
//
GLuint LoadTexture ( char *fileName )
{
int width,
height;
char *buffer = esLoadPNG ( fileName, &width, &height );
GLuint texId;
if ( buffer == NULL )
{
esLogMessage ( "Error loading (%s) image.\n", fileName );
return 0;
}
glGenTextures ( 1, &texId );
glBindTexture ( GL_TEXTURE_2D, texId );
glTexImage2D ( GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
free ( buffer );
return texId;
}
///
// Load texture from disk
//
static GLuint LoadTexture ( char *fileName )
{
int width,
height;
char hasAlpha =0;
char *buffer=NULL;
GLuint texId;
if(strstr(fileName,"tga")!=NULL){
buffer=esLoadTGA ( fileName, &width, &height );
}else if(strstr(fileName,"bmp") !=NULL){
Image *image1;
// allocate space for texture we will use
image1 = (Image *) malloc(sizeof(Image));
if(esLoadBMP ( fileName, image1 ) == 0)
{
return 0;
}
width = image1->sizeX;
height = image1->sizeY;
buffer=image1->data;
}else if(strstr(fileName,"png") !=NULL){
buffer= esLoadPNG(fileName,&width, &height, &hasAlpha);
} else if(strstr(fileName,"jpg") !=NULL){
#if 0
texId = SOIL_load_OGL_texture(fileName,
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_POWER_OF_TWO |
SOIL_FLAG_MIPMAPS |
SOIL_FLAG_COMPRESS_TO_DXT);
return texId;
#endif
}
if ( buffer == NULL )
{
esLogMessage ( "Error loading (%s) image.\n", fileName );
return 0;
}
glGenTextures ( 1, &texId );
glBindTexture ( GL_TEXTURE_2D, texId );
glTexImage2D ( GL_TEXTURE_2D, 0, hasAlpha ? GL_RGBA : GL_RGB, width, height, 0, hasAlpha ? GL_RGBA : GL_RGB , GL_UNSIGNED_BYTE, buffer);
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
free ( buffer );
return texId;
}