gpu: Add a GL representation for Ozone SharedImage

This CL creates a SharedImageRepresentationGLTexture for Ozone-based
SharedImages. The representation creates a GLImage from the pixmap
via GLImageNativePixmap::Initialize and then binds it to a GL texture.

Like in the case of the Pixmap Dawn representation, synchronization
will be added in a future CL.

Also, updates SharedImageBackingOzone to properly track the cleared
rect now that it is being used on SIRGLTexture::BeginAccess as per
chromium-review.googlesource.com/1990195.

Bug: 1023997,996470
Change-Id: Icacf20bc0f754fbc8acb37693618f2aca64568e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1913085
Commit-Queue: Brian Ho <hob@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738665}

gpu/command_buffer/service/BUILD.gn

@@ -347,6 +347,8 @@ target(link_target_type, "gles2_sources") {
       sources += [
         "shared_image_backing_ozone.cc",
         "shared_image_backing_ozone.h",
+        "shared_image_representation_gl_ozone.cc",
+        "shared_image_representation_gl_ozone.h",
       ]
     }
 

gpu/command_buffer/service/shared_image_backing_ozone.cc

@@ -23,6 +23,7 @@
 #include "gpu/command_buffer/service/shared_context_state.h"
 #include "gpu/command_buffer/service/shared_image_manager.h"
 #include "gpu/command_buffer/service/shared_image_representation.h"
+#include "gpu/command_buffer/service/shared_image_representation_gl_ozone.h"
 #include "gpu/vulkan/vulkan_device_queue.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/buffer_types.h"
@@ -95,15 +96,6 @@ std::unique_ptr<SharedImageBackingOzone> SharedImageBackingOzone::Create(
 
 SharedImageBackingOzone::~SharedImageBackingOzone() = default;
 
-gfx::Rect SharedImageBackingOzone::ClearedRect() const {
-  NOTIMPLEMENTED_LOG_ONCE();
-  return gfx::Rect();
-}
-
-void SharedImageBackingOzone::SetClearedRect(const gfx::Rect& cleared_rect) {
-  NOTIMPLEMENTED_LOG_ONCE();
-}
-
 void SharedImageBackingOzone::Update(std::unique_ptr<gfx::GpuFence> in_fence) {
   NOTIMPLEMENTED_LOG_ONCE();
   return;
@@ -134,8 +126,8 @@ SharedImageBackingOzone::ProduceDawn(SharedImageManager* manager,
 std::unique_ptr<SharedImageRepresentationGLTexture>
 SharedImageBackingOzone::ProduceGLTexture(SharedImageManager* manager,
                                           MemoryTypeTracker* tracker) {
-  NOTIMPLEMENTED_LOG_ONCE();
-  return nullptr;
+  return SharedImageRepresentationGLOzone::Create(manager, this, tracker,
+                                                  pixmap_, format());
 }
 
 std::unique_ptr<SharedImageRepresentationGLTexturePassthrough>
@@ -171,7 +163,7 @@ SharedImageBackingOzone::SharedImageBackingOzone(
     SharedContextState* context_state,
     scoped_refptr<gfx::NativePixmap> pixmap,
     scoped_refptr<base::RefCountedData<DawnProcTable>> dawn_procs)
-    : SharedImageBacking(mailbox,
+    : ClearTrackingSharedImageBacking(mailbox,
                                       format,
                                       size,
                                       color_space,

gpu/command_buffer/service/shared_image_backing_ozone.h

@@ -30,7 +30,7 @@ namespace gpu {
 // Implementation of SharedImageBacking that uses a NativePixmap created via
 // an Ozone surface factory. The memory associated with the pixmap can be
 // aliased by both GL and Vulkan for use in rendering or compositing.
-class SharedImageBackingOzone final : public SharedImageBacking {
+class SharedImageBackingOzone final : public ClearTrackingSharedImageBacking {
  public:
   static std::unique_ptr<SharedImageBackingOzone> Create(
       scoped_refptr<base::RefCountedData<DawnProcTable>> dawn_procs,
@@ -43,8 +43,6 @@ class SharedImageBackingOzone final : public SharedImageBacking {
   ~SharedImageBackingOzone() override;
 
   // gpu::SharedImageBacking:
-  gfx::Rect ClearedRect() const override;
-  void SetClearedRect(const gfx::Rect& cleared_rect) override;
   void Update(std::unique_ptr<gfx::GpuFence> in_fence) override;
   bool ProduceLegacyMailbox(MailboxManager* mailbox_manager) override;
 

gpu/command_buffer/service/shared_image_representation_gl_ozone.cc

+// Copyright 2020 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 "gpu/command_buffer/service/shared_image_representation_gl_ozone.h"
+
+#include "base/memory/scoped_refptr.h"
+#include "components/viz/common/resources/resource_format.h"
+#include "components/viz/common/resources/resource_format_utils.h"
+#include "gpu/command_buffer/service/memory_tracking.h"
+#include "gpu/command_buffer/service/shared_image_backing.h"
+#include "gpu/command_buffer/service/shared_image_manager.h"
+#include "gpu/command_buffer/service/shared_image_representation.h"
+#include "gpu/command_buffer/service/texture_manager.h"
+#include "ui/gfx/native_pixmap.h"
+#include "ui/gl/buffer_format_utils.h"
+#include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_fence.h"
+#include "ui/gl/gl_gl_api_implementation.h"
+#include "ui/gl/gl_image_native_pixmap.h"
+#include "ui/gl/gl_image_shared_memory.h"
+#include "ui/gl/gl_version_info.h"
+#include "ui/gl/scoped_binders.h"
+#include "ui/gl/trace_util.h"
+
+namespace gpu {
+
+// static
+std::unique_ptr<SharedImageRepresentationGLOzone>
+SharedImageRepresentationGLOzone::Create(
+    SharedImageManager* manager,
+    SharedImageBacking* backing,
+    MemoryTypeTracker* tracker,
+    scoped_refptr<gfx::NativePixmap> pixmap,
+    viz::ResourceFormat format) {
+  gl::GLApi* api = gl::g_current_gl_context;
+  DCHECK(api);
+
+  GLuint internal_format = viz::TextureStorageFormat(format);
+
+  GLuint gl_texture_service_id;
+  api->glGenTexturesFn(1, &gl_texture_service_id);
+  gl::ScopedTextureBinder binder(GL_TEXTURE_2D, gl_texture_service_id);
+
+  gfx::BufferFormat buffer_format = viz::BufferFormat(format);
+  auto image = base::MakeRefCounted<gl::GLImageNativePixmap>(
+      pixmap->GetBufferSize(), buffer_format);
+  if (!image->Initialize(pixmap)) {
+    DLOG(ERROR) << "Unable to initialize EGL image from pixmap";
+    return nullptr;
+  }
+
+  api->glTexParameteriFn(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  api->glTexParameteriFn(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+  api->glTexParameteriFn(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+  api->glTexParameteriFn(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+  if (!image->BindTexImage(GL_TEXTURE_2D)) {
+    DLOG(ERROR) << "Unable to bind EGL image to GL_TEXTURE_2D";
+    return nullptr;
+  }
+
+  gles2::Texture* texture = new gles2::Texture(gl_texture_service_id);
+  texture->SetLightweightRef();
+  texture->SetTarget(GL_TEXTURE_2D, 1 /*max_levels=*/);
+  texture->sampler_state_.min_filter = GL_LINEAR;
+  texture->sampler_state_.mag_filter = GL_LINEAR;
+  texture->sampler_state_.wrap_t = GL_CLAMP_TO_EDGE;
+  texture->sampler_state_.wrap_s = GL_CLAMP_TO_EDGE;
+
+  GLenum gl_format = viz::GLDataFormat(format);
+  GLenum gl_type = viz::GLDataType(format);
+  texture->SetLevelImage(GL_TEXTURE_2D, 0, image.get(), gles2::Texture::BOUND);
+  texture->SetLevelInfo(GL_TEXTURE_2D, 0, internal_format,
+                        pixmap->GetBufferSize().width(),
+                        pixmap->GetBufferSize().height(), 1, 0, gl_format,
+                        gl_type, backing->ClearedRect());
+  texture->SetImmutable(true, true);
+
+  return base::WrapUnique<SharedImageRepresentationGLOzone>(
+      new SharedImageRepresentationGLOzone(manager, backing, tracker, texture));
+}
+
+SharedImageRepresentationGLOzone::SharedImageRepresentationGLOzone(
+    SharedImageManager* manager,
+    SharedImageBacking* backing,
+    MemoryTypeTracker* tracker,
+    gles2::Texture* texture)
+    : SharedImageRepresentationGLTexture(manager, backing, tracker),
+      texture_(texture) {}
+
+SharedImageRepresentationGLOzone::~SharedImageRepresentationGLOzone() {
+  texture_->RemoveLightweightRef(has_context());
+}
+
+gles2::Texture* SharedImageRepresentationGLOzone::GetTexture() {
+  return texture_;
+}
+
+bool SharedImageRepresentationGLOzone::BeginAccess(GLenum mode) {
+  // TODO(hob): Synchronize access to the dma-buf by waiting on all semaphores
+  // tracked by SharedImageBackingOzone.
+  return true;
+}
+
+void SharedImageRepresentationGLOzone::EndAccess() {
+  // TODO(hob): Synchronize access to the dma-buf by signaling completion via
+  // glSignalSemaphoreEXT.
+}
+
+}  // namespace gpu

gpu/command_buffer/service/shared_image_representation_gl_ozone.h

+// Copyright 2020 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.
+
+#ifndef GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_REPRESENTATION_GL_OZONE_H_
+#define GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_REPRESENTATION_GL_OZONE_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_refptr.h"
+#include "components/viz/common/resources/resource_format.h"
+#include "gpu/command_buffer/service/memory_tracking.h"
+#include "gpu/command_buffer/service/shared_image_backing.h"
+#include "gpu/command_buffer/service/shared_image_manager.h"
+#include "gpu/command_buffer/service/shared_image_representation.h"
+#include "gpu/command_buffer/service/texture_manager.h"
+#include "ui/gfx/native_pixmap.h"
+
+namespace gpu {
+
+// Representation of an Ozone-backed SharedImage that can be accessed as a
+// GL texture.
+class SharedImageRepresentationGLOzone
+    : public SharedImageRepresentationGLTexture {
+ public:
+  // Creates and initializes a SharedImageRepresentationGLOzone. On failure,
+  // returns nullptr.
+  static std::unique_ptr<SharedImageRepresentationGLOzone> Create(
+      SharedImageManager* manager,
+      SharedImageBacking* backing,
+      MemoryTypeTracker* tracker,
+      scoped_refptr<gfx::NativePixmap> pixmap,
+      viz::ResourceFormat format);
+
+  ~SharedImageRepresentationGLOzone() override;
+
+  // SharedImageRepresentationGLTexture implementation.
+  gles2::Texture* GetTexture() override;
+  bool BeginAccess(GLenum mode) override;
+  void EndAccess() override;
+
+ private:
+  SharedImageRepresentationGLOzone(SharedImageManager* manager,
+                                   SharedImageBacking* backing,
+                                   MemoryTypeTracker* tracker,
+                                   gles2::Texture* texture);
+
+  gles2::Texture* texture_;
+
+  DISALLOW_COPY_AND_ASSIGN(SharedImageRepresentationGLOzone);
+};
+
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_REPRESENTATION_GL_OZONE_H_

gpu/command_buffer/service/texture_manager.h

@@ -49,6 +49,7 @@ class SharedImageRepresentationSkiaGLAHB;
 class SharedImageBackingIOSurface;
 class SharedImageRepresentationGLTextureIOSurface;
 class SharedImageRepresentationSkiaIOSurface;
+class SharedImageRepresentationGLOzone;
 class SharedImageBackingD3D;
 class SharedImageVideo;
 class StreamTexture;
@@ -448,6 +449,7 @@ class GPU_GLES2_EXPORT Texture final : public TextureBase {
   friend class gpu::SharedImageBackingFactoryD3D;
   friend class gpu::SharedImageRepresentationGLTextureIOSurface;
   friend class gpu::SharedImageRepresentationSkiaIOSurface;
+  friend class gpu::SharedImageRepresentationGLOzone;
   friend class gpu::StreamTexture;
   friend class gpu::TestSharedImageBacking;
   friend class AbstractTextureImplOnSharedContext;