OpenGLES加载png纹理/WinCE6.0/Cximage库

bool COpenGLES::CreatePNGTexture(GLuint texID, const CString filename)
{
	printf("png图片路径=%s\n",filename);

	CxImage * image = new CxImage();
	image->Destroy();
	unsigned char *pImage_RGBA = NULL;
	if(!(image->Load(filename,CXIMAGE_FORMAT_PNG)))
	{
		printf("加载图片失败\n");
		return false;
	}
	if(!image->IsValid())
	{
		printf("图片不可用\n");
		return false;
	}
	int sizeX,sizeY;
	sizeX = image->GetWidth();
	sizeY = image->GetHeight();
	if(!image->AlphaIsValid())
	{
		printf("alpha层错误\n");
		return false;
	}
	long imageSize_RGBA = sizeX * sizeY * 4;
	//pImage_RGBA = new unsigned char[imageSize_RGBA];
	image->Encode2RGBA(pImage_RGBA,imageSize_RGBA);
	glBindTexture(GL_TEXTURE_2D, texID);

	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, sizeX, sizeY, 0, GL_RGBA, GL_UNSIGNED_BYTE, pImage_RGBA);
	image->FreeMemory( pImage_RGBA);
	image->Destroy();
	delete image;

}