C++ (Cpp) fenced_buffer_destroy_gpu_storage_locked示例

示例#1

文件： pb_buffer_simple_fenced.c 项目： ashmew2/kolibriosSVN

static INLINE void
fenced_buffer_destroy_locked(struct fenced_manager *fenced_mgr,
                             struct fenced_buffer *fenced_buf)
{
   assert(!pipe_is_referenced(&fenced_buf->base.reference));

   assert(!fenced_buf->fence);
   assert(fenced_buf->head.prev);
   assert(fenced_buf->head.next);
   LIST_DEL(&fenced_buf->head);
   assert(fenced_mgr->num_unfenced);
   --fenced_mgr->num_unfenced;

   fenced_buffer_destroy_gpu_storage_locked(fenced_buf);

   FREE(fenced_buf);
}

示例#2

文件： pb_buffer_fenced.c 项目： CPFDSoftware-Tony/gmv

/**
 * Try to free some GPU memory by backing it up into CPU memory.
 *
 * Returns TRUE if at least one buffer was freed.
 */
static boolean
fenced_manager_free_gpu_storage_locked(struct fenced_manager *fenced_mgr)
{
   struct list_head *curr, *next;
   struct fenced_buffer *fenced_buf;

   curr = fenced_mgr->unfenced.next;
   next = curr->next;
   while(curr != &fenced_mgr->unfenced) {
      fenced_buf = LIST_ENTRY(struct fenced_buffer, curr, head);

      /*
       * We can only move storage if the buffer is not mapped and not
       * validated.
       */
      if(fenced_buf->buffer &&
         !fenced_buf->mapcount &&
         !fenced_buf->vl) {
         enum pipe_error ret;

         ret = fenced_buffer_create_cpu_storage_locked(fenced_mgr, fenced_buf);
         if(ret == PIPE_OK) {
            ret = fenced_buffer_copy_storage_to_cpu_locked(fenced_buf);
            if(ret == PIPE_OK) {
               fenced_buffer_destroy_gpu_storage_locked(fenced_buf);
               return TRUE;
            }
            fenced_buffer_destroy_cpu_storage_locked(fenced_buf);
         }
      }

      curr = next;
      next = curr->next;
   }

   return FALSE;
}

示例#3

文件： pb_buffer_fenced.c 项目： CPFDSoftware-Tony/gmv

static enum pipe_error
fenced_buffer_validate(struct pb_buffer *buf,
                       struct pb_validate *vl,
                       unsigned flags)
{
   struct fenced_buffer *fenced_buf = fenced_buffer(buf);
   struct fenced_manager *fenced_mgr = fenced_buf->mgr;
   enum pipe_error ret;

   pipe_mutex_lock(fenced_mgr->mutex);

   if(!vl) {
      /* invalidate */
      fenced_buf->vl = NULL;
      fenced_buf->validation_flags = 0;
      ret = PIPE_OK;
      goto done;
   }

   assert(flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE);
   assert(!(flags & ~PIPE_BUFFER_USAGE_GPU_READ_WRITE));
   flags &= PIPE_BUFFER_USAGE_GPU_READ_WRITE;

   /* Buffer cannot be validated in two different lists */
   if(fenced_buf->vl && fenced_buf->vl != vl) {
      ret = PIPE_ERROR_RETRY;
      goto done;
   }

   if(fenced_buf->vl == vl &&
      (fenced_buf->validation_flags & flags) == flags) {
      /* Nothing to do -- buffer already validated */
      ret = PIPE_OK;
      goto done;
   }

   /*
    * Create and update GPU storage.
    */
   if(!fenced_buf->buffer) {
      assert(!fenced_buf->mapcount);

      ret = fenced_buffer_create_gpu_storage_locked(fenced_mgr, fenced_buf, TRUE);
      if(ret != PIPE_OK) {
         goto done;
      }

      ret = fenced_buffer_copy_storage_to_gpu_locked(fenced_buf);
      if(ret != PIPE_OK) {
         fenced_buffer_destroy_gpu_storage_locked(fenced_buf);
         goto done;
      }

      if(fenced_buf->mapcount) {
         debug_printf("warning: validating a buffer while it is still mapped\n");
      }
      else {
         fenced_buffer_destroy_cpu_storage_locked(fenced_buf);
      }
   }

   ret = pb_validate(fenced_buf->buffer, vl, flags);
   if (ret != PIPE_OK)
      goto done;

   fenced_buf->vl = vl;
   fenced_buf->validation_flags |= flags;

done:
   pipe_mutex_unlock(fenced_mgr->mutex);

   return ret;
}