sync compositor: Software draw

content/common/android/sync_compositor_messages.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/memory/shared_memory_handle.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/input/did_overscroll_params.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/gfx/geometry/scroll_offset.h"
@@ skipping 24 matching lines @@
   ~SyncCompositorDemandDrawHwParams();
 
   gfx::Size surface_size;
   gfx::Transform transform;
   gfx::Rect viewport;
   gfx::Rect clip;
   gfx::Rect viewport_rect_for_tile_priority;
   gfx::Transform transform_for_tile_priority;
 };
 
+struct SyncCompositorDemandDrawSwParams {
+  SyncCompositorDemandDrawSwParams();
+  ~SyncCompositorDemandDrawSwParams();
+
+  gfx::Size size;
+  gfx::Rect clip;
+  gfx::Transform transform;
+  base::SharedMemoryHandle shm_handle;
+};
+
 struct SyncCompositorCommonRendererParams {
   SyncCompositorCommonRendererParams();
   ~SyncCompositorCommonRendererParams();
 
   unsigned int version;
   gfx::ScrollOffset total_scroll_offset;
   gfx::ScrollOffset max_scroll_offset;
   gfx::SizeF scrollable_size;
   float page_scale_factor;
   float min_page_scale_factor;
@@ skipping 22 matching lines @@
 
 IPC_STRUCT_TRAITS_BEGIN(content::SyncCompositorDemandDrawHwParams)
   IPC_STRUCT_TRAITS_MEMBER(surface_size)
   IPC_STRUCT_TRAITS_MEMBER(transform)
   IPC_STRUCT_TRAITS_MEMBER(viewport)
   IPC_STRUCT_TRAITS_MEMBER(clip)
   IPC_STRUCT_TRAITS_MEMBER(viewport_rect_for_tile_priority)
   IPC_STRUCT_TRAITS_MEMBER(transform_for_tile_priority)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(content::SyncCompositorDemandDrawSwParams)
+  IPC_STRUCT_TRAITS_MEMBER(size)
+  IPC_STRUCT_TRAITS_MEMBER(clip)
+  IPC_STRUCT_TRAITS_MEMBER(transform)
+  IPC_STRUCT_TRAITS_MEMBER(shm_handle)
+IPC_STRUCT_TRAITS_END()
+
 IPC_STRUCT_TRAITS_BEGIN(content::SyncCompositorCommonRendererParams)
   IPC_STRUCT_TRAITS_MEMBER(version)
   IPC_STRUCT_TRAITS_MEMBER(total_scroll_offset)
   IPC_STRUCT_TRAITS_MEMBER(max_scroll_offset)
   IPC_STRUCT_TRAITS_MEMBER(scrollable_size)
   IPC_STRUCT_TRAITS_MEMBER(page_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(min_page_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(max_page_scale_factor)
   IPC_STRUCT_TRAITS_MEMBER(need_animate_scroll)
   IPC_STRUCT_TRAITS_MEMBER(need_invalidate)
@@ skipping 16 matching lines @@
                            content::SyncCompositorCommonBrowserParams,
                            base::TimeTicks,
                            content::SyncCompositorCommonRendererParams)
 
 IPC_SYNC_MESSAGE_ROUTED2_2(SyncCompositorMsg_DemandDrawHw,
                            content::SyncCompositorCommonBrowserParams,
                            content::SyncCompositorDemandDrawHwParams,
                            content::SyncCompositorCommonRendererParams,
                            cc::CompositorFrame)
 
+IPC_SYNC_MESSAGE_ROUTED2_3(SyncCompositorMsg_DemandDrawSw,

[dcheng, 2015/11/23 23:26:35]

Can we add section comments like other IPC messages?

e.g. these messages go from browser process -> compositor process

[boliu, 2015/11/24 00:16:33]

Copied the same section headings from content/common/view_messages.h

+                           content::SyncCompositorCommonBrowserParams,
+                           content::SyncCompositorDemandDrawSwParams,
+                           bool /* result */,
+                           content::SyncCompositorCommonRendererParams,
+                           cc::CompositorFrame)
+
 IPC_MESSAGE_ROUTED1(SyncCompositorMsg_UpdateState,
                     content::SyncCompositorCommonBrowserParams)
 
 IPC_MESSAGE_ROUTED1(SyncCompositorHostMsg_UpdateState,
                     content::SyncCompositorCommonRendererParams)
 
 IPC_MESSAGE_ROUTED2(SyncCompositorHostMsg_OverScroll,
                     content::SyncCompositorCommonRendererParams,
                     content::DidOverscrollParams)