[gtk+/wip/matthiasc/renderpasses: 2/6] Add semaphores to the command buffer submit api

[Matthias Clasen <matthiasc src gnome org>]

commit ff111b3f4f79bd9423a2095a050deabfafae4d56
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 27 20:09:35 2017 -0400

    Add semaphores to the command buffer submit api
    
    This will be used in the future.
    Update all callers to pass no semaphores.

 gsk/gskvulkancommandpool.c        |   33 ++++++++++++++++++---------------
 gsk/gskvulkancommandpoolprivate.h |    4 ++++
 gsk/gskvulkanimage.c              |    4 ++--
 gsk/gskvulkanrender.c             |    2 +-
 4 files changed, 25 insertions(+), 18 deletions(-)
---
diff --git a/gsk/gskvulkancommandpool.c b/gsk/gskvulkancommandpool.c
index c2b9747..bcba6a9 100644
--- a/gsk/gskvulkancommandpool.c
+++ b/gsk/gskvulkancommandpool.c
@@ -75,33 +75,36 @@ gsk_vulkan_command_pool_get_buffer (GskVulkanCommandPool *self)
 void
 gsk_vulkan_command_pool_submit_buffer (GskVulkanCommandPool *self,
                                        VkCommandBuffer       command_buffer,
+                                       gsize                 wait_semaphore_count,
+                                       VkSemaphore          *wait_semaphores,
+                                       gsize                 signal_semaphore_count,
+                                       VkSemaphore          *signal_semaphores,
                                        VkFence               fence)
 {
+  VkPipelineStageFlags *wait_semaphore_flags = NULL;
+
   GSK_VK_CHECK (vkEndCommandBuffer, command_buffer);
 
+  if (wait_semaphore_count > 0)
+    {
+      wait_semaphore_flags = alloca (sizeof (VkPipelineStageFlags) * wait_semaphore_count);
+      for (int i = 0; i < wait_semaphore_count; i++)
+        wait_semaphore_flags[i] = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
+    }
+
   GSK_VK_CHECK (vkQueueSubmit, gdk_vulkan_context_get_queue (self->vulkan),
                                1,
                                &(VkSubmitInfo) {
                                   .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
-/*
-                                  .waitSemaphoreCount = 1,
-                                  .pWaitSemaphores = (VkSemaphore[1]) {
-                                      gdk_vulkan_context_get_draw_semaphore (self->vulkan)
-                                  },
-*/
-                                  .pWaitDstStageMask = (VkPipelineStageFlags []) {
-                                      VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
-                                  },
+                                  .waitSemaphoreCount = wait_semaphore_count,
+                                  .pWaitSemaphores = wait_semaphores,
+                                  .pWaitDstStageMask = wait_semaphore_flags,
                                   .commandBufferCount = 1,
                                   .pCommandBuffers = (VkCommandBuffer[1]) {
                                       command_buffer
                                   },
-/*
-                                  .signalSemaphoreCount = 1,
-                                  .pSignalSemaphores = (VkSemaphore[1]) {
-                                      gdk_vulkan_context_get_draw_semaphore (self->vulkan)
-                                  }
-*/
+                                  .signalSemaphoreCount = signal_semaphore_count,
+                                  .pSignalSemaphores = signal_semaphores,
                                },
                                fence);
 }
diff --git a/gsk/gskvulkancommandpoolprivate.h b/gsk/gskvulkancommandpoolprivate.h
index 0373908..bb362f3 100644
--- a/gsk/gskvulkancommandpoolprivate.h
+++ b/gsk/gskvulkancommandpoolprivate.h
@@ -15,6 +15,10 @@ void                    gsk_vulkan_command_pool_reset                   (GskVulk
 VkCommandBuffer         gsk_vulkan_command_pool_get_buffer              (GskVulkanCommandPool   *self);
 void                    gsk_vulkan_command_pool_submit_buffer           (GskVulkanCommandPool   *self,
                                                                          VkCommandBuffer         buffer,
+                                                                         gsize                   
wait_semaphore_count,
+                                                                         VkSemaphore            
*wait_semaphores,
+                                                                         gsize                   
signal_semaphores_count,
+                                                                         VkSemaphore            
*signal_semaphores,
                                                                          VkFence                 fence);
 
 G_END_DECLS
diff --git a/gsk/gskvulkanimage.c b/gsk/gskvulkanimage.c
index f64a3ac..4ea8a44 100644
--- a/gsk/gskvulkanimage.c
+++ b/gsk/gskvulkanimage.c
@@ -154,7 +154,7 @@ gsk_vulkan_uploader_upload (GskVulkanUploader *self)
                             0, NULL,
                             self->before_buffer_barriers->len, (VkBufferMemoryBarrier *) 
self->before_buffer_barriers->data,
                             self->before_image_barriers->len, (VkImageMemoryBarrier *) 
self->before_image_barriers->data);
-      gsk_vulkan_command_pool_submit_buffer (self->command_pool, command_buffer, VK_NULL_HANDLE);
+      gsk_vulkan_command_pool_submit_buffer (self->command_pool, command_buffer, 0, NULL, 0, NULL, 
VK_NULL_HANDLE);
       g_array_set_size (self->before_buffer_barriers, 0);
       g_array_set_size (self->before_image_barriers, 0);
     }
@@ -176,7 +176,7 @@ gsk_vulkan_uploader_upload (GskVulkanUploader *self)
 
   if (self->copy_buffer != VK_NULL_HANDLE)
     {
-      gsk_vulkan_command_pool_submit_buffer (self->command_pool, self->copy_buffer, VK_NULL_HANDLE);
+      gsk_vulkan_command_pool_submit_buffer (self->command_pool, self->copy_buffer, 0, NULL, 0, NULL, 
VK_NULL_HANDLE);
       self->copy_buffer = VK_NULL_HANDLE;
     }
 }
diff --git a/gsk/gskvulkanrender.c b/gsk/gskvulkanrender.c
index f87f4cc..5888866 100644
--- a/gsk/gskvulkanrender.c
+++ b/gsk/gskvulkanrender.c
@@ -594,7 +594,7 @@ gsk_vulkan_render_draw (GskVulkanRender   *self,
       vkCmdEndRenderPass (command_buffer);
     }
 
-  gsk_vulkan_command_pool_submit_buffer (self->command_pool, command_buffer, self->fence);
+  gsk_vulkan_command_pool_submit_buffer (self->command_pool, command_buffer, 0, NULL, 0, NULL, self->fence);
 
   if (GSK_RENDER_MODE_CHECK (SYNC))
     {