glDeleteTextures似乎没有释放Windows上的纹理内存，没有解决方法吗?

我的openGL应用程序内存不足时遇到了一些问题，我试图找出问题所在.为此，我创建了一个小型测试程序，该程序基本上只从名为glDeleteTextures的文件中加载一个巨大的纹理，然后再次加载它，如果我在OSX上运行此测试程序，则该过程可以运行数百次迭代而不会出现问题(大多数情况下，我将其运行为1024，这没有问题)，但是在Windows上进行约14次迭代后，我收到了GLU_OUT_OF_MEMORY错误.我一遍又一遍地加载的纹理是一个巨大的圆顶(4096 x 1024和4.9MB).

I have been having some problems with my openGL application running out of memory and I am trying to track down my problem. To this end, I created a small test program that basically just loads a giant texture from a file calls glDeleteTextures and then loads it again, if I run this test program on OSX this process can run for hundreds of iterations with no problems (the most I ran it for was 1024 and this had no problems) but after about 14 iterations on windows I get a GLU_OUT_OF_MEMORY error. The texture I am loading over and over is a huge sky dome (4096 x 1024 and 4.9MB).

这是我正在运行的代码，其中包含针对非轻度倾斜的注释:

Here is the code I am running with comments for the non lisp inclined:

测试程序:

 (with-glcontext (shared-opengl-view)
   ;;loop 1024 times
   (dotimes (i 1024)
    ;; create a texture and return its texture name
    (let ((texture (create-texture-from-file (truename "lui:resources;sky domes;DarkClouds.png"))))
      ;;Allocate two bytes to pass to glDeleteTextures
      (ccl::rlet ((&texName :long))
        ;; put the texture string into our allocated bytes
        (setf (ccl::%get-long &texName) texture)
          ;; Delete the textures?
          (glDeleteTextures 1 &texName)))))

从文件创建纹理(此方法大部分由openGL调用组成，因此我认为大多数openGL人员应该对这里发生的事情有一个合理的了解，但我可以弄清任何令人困惑的地方):

Create-texture-from-file (most of this method is made up of openGL calls so I think most openGL people should have a reasonable understanding of what's happening here but I can clarify anything thats confusing):

(defun CREATE-TEXTURE-FROM-FILE (Filename &key Verbose (Build-Mipmaps t) Repeat (Mag-Filter *Default-OpenGL-Texture-Magnification-Filter*) Forced-Depth) "
in:  Filename {string}, 
&key Verbose {boolean}, Repeat
out: OpenGL-Texture-Name {int}, width, height, depth
Load the <Filename> texture inside the texture directory.
- Ideal file should be 32 bit ARGB compatible, e.g., .png with mask or 24 bit RGB
- 8 bit and 16 bit image will work too 
- Image size must be 2^n x 2^m, at least 64 x 64
- This function must be called with active AGL context, e.g., inside OpenGL-Window INIT     method."
 (declare (ftype function create-image-from-file))
 (rlet ((&texName :long))
   (multiple-value-bind (&Image Width Height Depth) (create-image-from-file Filename :verbose Verbose :flip-vertical t :forced-depth Forced-Depth)
     (unless &Image (return-from create-texture-from-file nil))
     (glPixelStorei GL_UNPACK_ROW_LENGTH Width)  ; Set proper unpacking row length for image
     (glPixelStorei GL_UNPACK_ALIGNMENT 1)       ; Set byte aligned unpacking (needed for 3-byte-per-pixel image)
     (glGenTextures 1 &texName)
     ; Specify the texture's properties.
     (glBindTexture GL_TEXTURE_2D (%get-long &texName))
     (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_S (if Repeat GL_REPEAT GL_CLAMP_TO_EDGE))
     (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_T (if Repeat GL_REPEAT GL_CLAMP_TO_EDGE))
     (glTexParameteri gl_texture_2d gl_texture_mag_filter Mag-Filter)   ;; make textures look smooth (can be costly)
     ;; Mipmaps: make texture look good at different sizes
     (if Build-Mipmaps
      (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER GL_LINEAR_MIPMAP_NEAREST)
      (glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER GL_LINEAR))
    ;; Experimental: anisotropic filtering to make textures less blurry at angle
    #-:cocotron  (glTexParameterf GL_TEXTURE_2D GL_TEXTURE_MAX_ANISOTROPY_EXT 16.0)
     (let ((PixelFormat (ecase Depth (32 GL_RGBA) (24 GL_RGB)))
         (InternalFormat (ecase Depth (32 GL_RGBA8) (24 GL_RGB8))))
      (glTexImage2D GL_TEXTURE_2D 0 InternalFormat width height 0 PixelFormat GL_UNSIGNED_BYTE &Image)
      (when Build-Mipmaps
        (when Verbose (format t "~%Building Mipmaps~%"))
      (unless 
          ;; The calls to gluBuild2DMipmaps will return GLU_OUT_OF_MEMORY when we run out.
          (zerop (print (gluBuild2DMipmaps GL_TEXTURE_2D InternalFormat width height PixelFormat GL_UNSIGNED_BYTE &Image)))
        (print (get-opengl-error))
        (error "could not create mipmaps"))
      (when Verbose (format t "Completed Mipmaps~%"))))
  ;; OpenGL should have copied now the image data into texture memory: release
  (dispose-vector &Image)
  ;; return the texture handle and image dimensions
  (values
   (%get-long &texName)
   Width 
   Height
   Depth))))

我在其他地方读过glDeleteTextures并没有完全取消所有资源，但是这些帖子都没有提供任何替代方案或解决方案.有没有这样的解决方案?

I have read elsewhere the glDeleteTextures does not completely dealocate all resources but none of these posts offered any alternative or solutions. Is there no such solution?