C++ pipe_mutex_unlock函数代码示例

VAStatus
vlVaDestroySurfaces(VADriverContextP ctx, VASurfaceID *surface_list, int num_surfaces)
{
   vlVaDriver *drv;
   int i;

   if (!ctx)
      return VA_STATUS_ERROR_INVALID_CONTEXT;

   drv = VL_VA_DRIVER(ctx);
   pipe_mutex_lock(drv->mutex);
   for (i = 0; i < num_surfaces; ++i) {
      vlVaSurface *surf = handle_table_get(drv->htab, surface_list[i]);
      if (surf->buffer)
         surf->buffer->destroy(surf->buffer);
      util_dynarray_fini(&surf->subpics);
      FREE(surf);
      handle_table_remove(drv->htab, surface_list[i]);
   }
   pipe_mutex_unlock(drv->mutex);

   return VA_STATUS_SUCCESS;
}

static void
rbug_set_constant_buffer(struct pipe_context *_pipe,
                         uint shader,
                         uint index,
                         struct pipe_constant_buffer *_cb)
{
   struct rbug_context *rb_pipe = rbug_context(_pipe);
   struct pipe_context *pipe = rb_pipe->pipe;
   struct pipe_constant_buffer cb;

   /* XXX hmm? unwrap the input state */
   if (_cb) {
      cb = *_cb;
      cb.buffer = rbug_resource_unwrap(_cb->buffer);
   }

   pipe_mutex_lock(rb_pipe->call_mutex);
   pipe->set_constant_buffer(pipe,
                             shader,
                             index,
                             _cb ? &cb : NULL);
   pipe_mutex_unlock(rb_pipe->call_mutex);
}

void amdgpu_bo_destroy(struct pb_buffer *_buf)
{
   struct amdgpu_winsys_bo *bo = amdgpu_winsys_bo(_buf);
   int i;

   pipe_mutex_lock(bo->ws->global_bo_list_lock);
   LIST_DEL(&bo->global_list_item);
   bo->ws->num_buffers--;
   pipe_mutex_unlock(bo->ws->global_bo_list_lock);

   amdgpu_bo_va_op(bo->bo, 0, bo->base.size, bo->va, 0, AMDGPU_VA_OP_UNMAP);
   amdgpu_va_range_free(bo->va_handle);
   amdgpu_bo_free(bo->bo);

   for (i = 0; i < RING_LAST; i++)
      amdgpu_fence_reference(&bo->fence[i], NULL);

   if (bo->initial_domain & RADEON_DOMAIN_VRAM)
      bo->ws->allocated_vram -= align64(bo->base.size, bo->ws->info.gart_page_size);
   else if (bo->initial_domain & RADEON_DOMAIN_GTT)
      bo->ws->allocated_gtt -= align64(bo->base.size, bo->ws->info.gart_page_size);
   FREE(bo);
}

static void
pb_debug_manager_dump(struct pb_debug_manager *mgr)
{
   struct list_head *curr, *next;
   struct pb_debug_buffer *buf;

   pipe_mutex_lock(mgr->mutex);
      
   curr = mgr->list.next;
   next = curr->next;
   while(curr != &mgr->list) {
      buf = LIST_ENTRY(struct pb_debug_buffer, curr, head);

      debug_printf("buffer = %p\n", buf);
      debug_printf("    .size = 0x%x\n", buf->base.base.size);
      debug_backtrace_dump(buf->create_backtrace, PB_DEBUG_CREATE_BACKTRACE);
      
      curr = next; 
      next = curr->next;
   }

   pipe_mutex_unlock(mgr->mutex);
}

VAStatus
vlVaBufferInfo(VADriverContextP ctx, VABufferID buf_id, VABufferType *type,
               unsigned int *size, unsigned int *num_elements)
{
   vlVaDriver *drv;
   vlVaBuffer *buf;

   if (!ctx)
      return VA_STATUS_ERROR_INVALID_CONTEXT;

   drv = VL_VA_DRIVER(ctx);
   pipe_mutex_lock(drv->mutex);
   buf = handle_table_get(drv->htab, buf_id);
   pipe_mutex_unlock(drv->mutex);
   if (!buf)
      return VA_STATUS_ERROR_INVALID_BUFFER;

   *type = buf->type;
   *size = buf->size;
   *num_elements = buf->num_elements;

   return VA_STATUS_SUCCESS;
}

/**
 * Have ptr reference fb.  The referenced framebuffer should be locked.
 */
void
stw_framebuffer_reference(
   struct stw_framebuffer **ptr,
   struct stw_framebuffer *fb)
{
   struct stw_framebuffer *old_fb = *ptr;

   if (old_fb == fb)
      return;

   if (fb)
      fb->refcnt++;
   if (old_fb) {
      pipe_mutex_lock(stw_dev->fb_mutex);

      pipe_mutex_lock(old_fb->mutex);
      stw_framebuffer_destroy_locked(old_fb);

      pipe_mutex_unlock(stw_dev->fb_mutex);
   }

   *ptr = fb;
}

/** Rasterize all scene's bins */
static void
lp_setup_rasterize_scene( struct lp_setup_context *setup )
{
   struct lp_scene *scene = setup->scene;
   struct llvmpipe_screen *screen = llvmpipe_screen(scene->pipe->screen);

   lp_scene_end_binning(scene);

   lp_fence_reference(&setup->last_fence, scene->fence);

   if (setup->last_fence)
      setup->last_fence->issued = TRUE;

   pipe_mutex_lock(screen->rast_mutex);
   lp_rast_queue_scene(screen->rast, scene);
   lp_rast_finish(screen->rast);
   pipe_mutex_unlock(screen->rast_mutex);

   lp_scene_end_rasterization(setup->scene);
   lp_setup_reset( setup );

   LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
}

static void
rbug_set_sampler_views(struct pipe_context *_pipe,
                       unsigned shader,
                       unsigned start,
                       unsigned num,
                       struct pipe_sampler_view **_views)
{
    struct rbug_context *rb_pipe = rbug_context(_pipe);
    struct pipe_context *pipe = rb_pipe->pipe;
    struct pipe_sampler_view *unwrapped_views[PIPE_MAX_SHADER_SAMPLER_VIEWS];
    struct pipe_sampler_view **views = NULL;
    unsigned i;

    assert(start == 0); /* XXX fix */

    /* must protect curr status */
    pipe_mutex_lock(rb_pipe->call_mutex);

    rb_pipe->curr.num_views[shader] = 0;
    memset(rb_pipe->curr.views[shader], 0, sizeof(rb_pipe->curr.views[shader]));
    memset(rb_pipe->curr.texs[shader], 0, sizeof(rb_pipe->curr.texs[shader]));
    memset(unwrapped_views, 0, sizeof(unwrapped_views));

    if (_views) {
        rb_pipe->curr.num_views[shader] = num;
        for (i = 0; i < num; i++) {
            rb_pipe->curr.views[shader][i] = rbug_sampler_view(_views[i]);
            rb_pipe->curr.texs[shader][i] = rbug_resource(_views[i] ? _views[i]->texture : NULL);
            unwrapped_views[i] = rbug_sampler_view_unwrap(_views[i]);
        }
        views = unwrapped_views;
    }

    pipe->set_sampler_views(pipe, shader, start, num, views);

    pipe_mutex_unlock(rb_pipe->call_mutex);
}

static void
svga_buffer_transfer_unmap( struct pipe_context *pipe,
                            struct pipe_transfer *transfer )
{
   struct svga_screen *ss = svga_screen(pipe->screen);
   struct svga_winsys_screen *sws = ss->sws;
   struct svga_buffer *sbuf = svga_buffer(transfer->resource);
   
   pipe_mutex_lock(ss->swc_mutex);
   
   assert(sbuf->map.count);
   if (sbuf->map.count) {
      --sbuf->map.count;
   }

   if (sbuf->hwbuf) {
      sws->buffer_unmap(sws, sbuf->hwbuf);
   }

   if (transfer->usage & PIPE_TRANSFER_WRITE) {
      if (!(transfer->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
         /*
          * Mapped range not flushed explicitly, so flush the whole buffer,
          * and tell the host to discard the contents when processing the DMA
          * command.
          */

         SVGA_DBG(DEBUG_DMA, "flushing the whole buffer\n");
   
         sbuf->dma.flags.discard = TRUE;

         svga_buffer_add_range(sbuf, 0, sbuf->b.b.width0);
      }
   }

   pipe_mutex_unlock(ss->swc_mutex);
}

/**
 * Return pointer to next bin to be rendered.
 * The lp_scene::curr_x and ::curr_y fields will be advanced.
 * Multiple rendering threads will call this function to get a chunk
 * of work (a bin) to work on.
 */
struct cmd_bin *
lp_scene_bin_iter_next( struct lp_scene *scene )
{
   struct cmd_bin *bin = NULL;

   pipe_mutex_lock(scene->mutex);

   if (scene->curr_x < 0) {
      /* first bin */
      scene->curr_x = 0;
      scene->curr_y = 0;
   }
   else if (!next_bin(scene)) {
      /* no more bins left */
      goto end;
   }

   bin = lp_scene_get_bin(scene, scene->curr_x, scene->curr_y);

end:
   /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
   pipe_mutex_unlock(scene->mutex);
   return bin;
}

static boolean debug_serial(void* p, unsigned* pserial)
{
   unsigned serial;
   boolean found = TRUE;
#ifdef PIPE_SUBSYSTEM_WINDOWS_USER
   static boolean first = TRUE;

   if (first) {
      pipe_mutex_init(serials_mutex);
      first = FALSE;
   }
#endif

   pipe_mutex_lock(serials_mutex);
   if(!serials_hash)
      serials_hash = util_hash_table_create(hash_ptr, compare_ptr);
   serial = (unsigned)(uintptr_t)util_hash_table_get(serials_hash, p);
   if(!serial)
   {
      /* time to stop logging... (you'll have a 100 GB logfile at least at this point)
       * TODO: avoid this
       */
      serial = ++serials_last;
      if(!serial)
      {
         debug_error("More than 2^32 objects detected, aborting.\n");
         os_abort();
      }

      util_hash_table_set(serials_hash, p, (void*)(uintptr_t)serial);
      found = FALSE;
   }
   pipe_mutex_unlock(serials_mutex);
   *pserial = serial;
   return found;
}

VAStatus
vlVaReleaseBufferHandle(VADriverContextP ctx, VABufferID buf_id)
{
   vlVaDriver *drv;
   vlVaBuffer *buf;

   if (!ctx)
      return VA_STATUS_ERROR_INVALID_CONTEXT;

   drv = VL_VA_DRIVER(ctx);
   pipe_mutex_lock(drv->mutex);
   buf = handle_table_get(drv->htab, buf_id);
   pipe_mutex_unlock(drv->mutex);

   if (!buf)
      return VA_STATUS_ERROR_INVALID_BUFFER;

   if (buf->export_refcount == 0)
      return VA_STATUS_ERROR_INVALID_BUFFER;

   if (--buf->export_refcount == 0) {
      VABufferInfo * const buf_info = &buf->export_state;

      switch (buf_info->mem_type) {
      case VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME:
         close((intptr_t)buf_info->handle);
         break;
      default:
         return VA_STATUS_ERROR_INVALID_BUFFER;
      }

      buf_info->mem_type = 0;
   }

   return VA_STATUS_SUCCESS;
}

void util_ringbuffer_enqueue( struct util_ringbuffer *ring,
                              const struct util_packet *packet )
{
   unsigned i;

   /* XXX: over-reliance on mutexes, etc:
    */
   pipe_mutex_lock(ring->mutex);

   /* make sure we don't request an impossible amount of space
    */
   assert(packet->dwords <= ring->mask);

   /* Wait for free space:
    */
   while (util_ringbuffer_space(ring) < packet->dwords)
      pipe_condvar_wait(ring->change, ring->mutex);

   /* Copy data to ring:
    */
   for (i = 0; i < packet->dwords; i++) {

      /* Copy all dwords of the packet.  Note we're abusing the
       * typesystem a little - we're being passed a pointer to
       * something, but probably not an array of packet structs:
       */
      ring->buf[ring->head] = packet[i];
      ring->head++;
      ring->head &= ring->mask;
   }

   /* Signal change:
    */
   pipe_condvar_signal(ring->change);
   pipe_mutex_unlock(ring->mutex);
}

void *
rtasm_exec_malloc(size_t size)
{
   struct mem_block *block = NULL;
   void *addr = NULL;

   pipe_mutex_lock(exec_mutex);

   init_heap();

   if (exec_heap) {
      size = (size + 31) & ~31;  /* next multiple of 32 bytes */
      block = u_mmAllocMem( exec_heap, size, 5, 0 ); /* 5 -> 32-byte alignment */
   }

   if (block)
      addr = exec_mem + block->ofs;
   else 
      debug_printf("rtasm_exec_malloc failed\n");
   
   pipe_mutex_unlock(exec_mutex);
   
   return addr;
}

void
stw_framebuffer_cleanup( void )
{
   struct stw_framebuffer *fb;
   struct stw_framebuffer *next;

   if (!stw_dev)
      return;

   pipe_mutex_lock( stw_dev->fb_mutex );

   fb = stw_dev->fb_head;
   while (fb) {
      next = fb->next;
      
      pipe_mutex_lock(fb->mutex);
      stw_framebuffer_destroy_locked(fb);
      
      fb = next;
   }
   stw_dev->fb_head = NULL;
   
   pipe_mutex_unlock( stw_dev->fb_mutex );
}