Fix T65812: Image empty has wrong aspect with limit texture size

source/blender/gpu/intern/gpu_draw.c

@@ -501,6 +501,9 @@ GPUTexture *GPU_texture_from_blender(Image *ima, ImageUser *iuser, int textarget
   BKE_image_release_ibuf(ima, ibuf, NULL);
 
   *tex = GPU_texture_from_bindcode(textarget, bindcode);
+
+  GPU_texture_orig_size_set(*tex, ibuf->x, ibuf->y);
+
   return *tex;
 }
 

source/blender/gpu/intern/gpu_texture.c

@@ -68,6 +68,7 @@ typedef enum eGPUTextureFormatFlag {
 /* GPUTexture */
 struct GPUTexture {
   int w, h, d;        /* width/height/depth */
+  int orig_w, orig_h; /* width/height (of source data), optional. */
   int number;         /* number for multitexture binding */
   int refcount;       /* reference count */
   GLenum target;      /* GL_TEXTURE_* */
@@ -1778,6 +1779,22 @@ int GPU_texture_height(const GPUTexture *tex)
   return tex->h;
 }
 
+int GPU_texture_orig_width(const GPUTexture *tex)
+{
+  return tex->orig_w;
+}
+
+int GPU_texture_orig_height(const GPUTexture *tex)
+{
+  return tex->orig_h;
+}
+
+void GPU_texture_orig_size_set(GPUTexture *tex, int w, int h)
+{
+  tex->orig_w = w;
+  tex->orig_h = h;
+}
+
 int GPU_texture_layers(const GPUTexture *tex)
 {
   return tex->d;