gpu: Mailbox emulation with EGLImage

gpu/command_buffer/service/mailbox_manager_unittest.cc

Index: gpu/command_buffer/service/mailbox_manager_unittest.cc
diff --git a/gpu/command_buffer/service/mailbox_manager_unittest.cc b/gpu/command_buffer/service/mailbox_manager_unittest.cc
index f7a4155179868cd46f06f11477d88e5d813529cb..ae871f97a3b586a94a5667b2a5952f7ef341bfbd 100644
--- a/gpu/command_buffer/service/mailbox_manager_unittest.cc
+++ b/gpu/command_buffer/service/mailbox_manager_unittest.cc
@@ -4,20 +4,64 @@
 
 #include "gpu/command_buffer/service/mailbox_manager.h"
 
+#include "gpu/command_buffer/service/feature_info.h"
+#include "gpu/command_buffer/service/mailbox_synchronizer.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gl/gl_mock.h"
 
 namespace gpu {
 namespace gles2 {
 
+using namespace ::testing;
+
 class MailboxManagerTest : public testing::Test {
  public:
-  MailboxManagerTest() : manager_(new MailboxManager()) {}
+  MailboxManagerTest() {}
   virtual ~MailboxManagerTest() {}
 
  protected:
+  virtual void SetUp() {
+    testing::Test::SetUp();
+    feature_info_ = new FeatureInfo;
+    manager_ = new MailboxManager;
+  }
+
   Texture* CreateTexture() {
-    return new Texture(0);
+    return new Texture(1);
+  }
+
+  void SetTarget(Texture* texture, GLenum target, GLuint max_level) {
+    texture->SetTarget(NULL, target, max_level);
+  }
+
+  void SetLevelInfo(
+      Texture* texture,
+      GLenum target,
+      GLint level,
+      GLenum internal_format,
+      GLsizei width,
+      GLsizei height,
+      GLsizei depth,
+      GLint border,
+      GLenum format,
+      GLenum type,
+      bool cleared) {
+    texture->SetLevelInfo(NULL,
+                          target,
+                          level,
+                          internal_format,
+                          width,
+                          height,
+                          depth,
+                          border,
+                          format,
+                          type,
+                          cleared);
+  }
+
+  GLenum SetParameter(Texture* texture, GLenum pname, GLint param) {
+    return texture->SetParameteri(feature_info_, pname, param);
   }
 
   void DestroyTexture(Texture* texture) {
@@ -27,6 +71,8 @@ class MailboxManagerTest : public testing::Test {
   scoped_refptr<MailboxManager> manager_;
 
  private:
+  scoped_refptr<FeatureInfo> feature_info_;
+
   DISALLOW_COPY_AND_ASSIGN(MailboxManagerTest);
 };
 
@@ -126,5 +172,296 @@ TEST_F(MailboxManagerTest, ProduceMultipleTextureMailbox) {
   EXPECT_EQ(NULL, manager_->ConsumeTexture(0, name2));
 }
 
+const GLsizei kMaxTextureWidth = 64;
+const GLsizei kMaxTextureHeight = 64;
+const GLsizei kMaxTextureDepth = 1;
+
+class MailboxManagerSyncTest : public MailboxManagerTest {
+ public:
+  MailboxManagerSyncTest() {}
+  virtual ~MailboxManagerSyncTest() {}
+
+ protected:
+  virtual void SetUp() {
+    MailboxSynchronizer::Initialize();
+    MailboxManagerTest::SetUp();
+    manager2_ = new MailboxManager;
+    gl_.reset(new ::testing::StrictMock< ::gfx::MockGLInterface>());
+    ::gfx::MockGLInterface::SetGLInterface(gl_.get());
+  }
+
+  Texture* DefineTexture() {
+    Texture* texture = CreateTexture();
+    const GLsizei levels_needed = TextureManager::ComputeMipMapCount(
+        GL_TEXTURE_2D, kMaxTextureWidth, kMaxTextureHeight, kMaxTextureDepth);
+    SetTarget(texture, GL_TEXTURE_2D, levels_needed);
+    SetLevelInfo(texture,
+                 GL_TEXTURE_2D,
+                 0,
+                 GL_RGBA,
+                 1,
+                 1,
+                 1,
+                 0,
+                 GL_RGBA,
+                 GL_UNSIGNED_BYTE,
+                 true);
+    SetParameter(texture, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    SetParameter(texture, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    return texture;
+  }
+
+  void SetupUpdateTexParamExpectations(GLuint texture_id,
+                                       GLenum min,
+                                       GLenum mag,
+                                       GLenum wrap_s,
+                                       GLenum wrap_t) {
+    DCHECK(texture_id);
+    const GLuint kCurrentTexture = 0;
+    EXPECT_CALL(*gl_, GetIntegerv(GL_TEXTURE_BINDING_2D, _))
+        .WillOnce(SetArgPointee<1>(kCurrentTexture))
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, texture_id))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_,
+                TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, min))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_,
+                TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, mag))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrap_s))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrap_t))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, Flush())
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kCurrentTexture))
+        .Times(1)
+        .RetiresOnSaturation();
+  }
+
+  virtual void TearDown() {
+    MailboxManagerTest::TearDown();
+    MailboxSynchronizer::Terminate();
+    ::gfx::MockGLInterface::SetGLInterface(NULL);
+    gl_.reset();
+  }
+
+  scoped_ptr< ::testing::StrictMock< ::gfx::MockGLInterface> > gl_;
+  scoped_refptr<MailboxManager> manager2_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MailboxManagerSyncTest);
+};
+
+TEST_F(MailboxManagerSyncTest, ProduceDestroy) {
+  Texture* texture = DefineTexture();
+  Mailbox name = Mailbox::Generate();
+
+  InSequence sequence;
+  manager_->ProduceTexture(GL_TEXTURE_2D, name, texture);
+  EXPECT_EQ(texture, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+
+  DestroyTexture(texture);
+  EXPECT_EQ(NULL, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+  EXPECT_EQ(NULL, manager2_->ConsumeTexture(GL_TEXTURE_2D, name));
+}
+
+TEST_F(MailboxManagerSyncTest, ProduceSyncDestroy) {
+  InSequence sequence;
+
+  Texture* texture = DefineTexture();
+  Mailbox name = Mailbox::Generate();
+
+  manager_->ProduceTexture(GL_TEXTURE_2D, name, texture);
+  EXPECT_EQ(texture, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+
+  // Synchronize
+  EXPECT_CALL(*gl_, Flush()).Times(1);
+  manager_->PushTextureUpdates();
+  manager2_->PullTextureUpdates();
+
+  DestroyTexture(texture);
+  EXPECT_EQ(NULL, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+  EXPECT_EQ(NULL, manager2_->ConsumeTexture(GL_TEXTURE_2D, name));
+}
+
+// Duplicates a texture into a second manager instance, and then
+// makes sure a redefinition becomes visible there too.
+TEST_F(MailboxManagerSyncTest, ProduceConsumeResize) {
+  const GLuint kNewTextureId = 1234;
+  InSequence sequence;
+
+  Texture* texture = DefineTexture();
+  Mailbox name = Mailbox::Generate();
+
+  manager_->ProduceTexture(GL_TEXTURE_2D, name, texture);
+  EXPECT_EQ(texture, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+
+  // Synchronize
+  EXPECT_CALL(*gl_, Flush()).Times(1);
+  manager_->PushTextureUpdates();
+  manager2_->PullTextureUpdates();
+
+  EXPECT_CALL(*gl_, GenTextures(1, _))
+      .WillOnce(SetArgPointee<1>(kNewTextureId));
+  SetupUpdateTexParamExpectations(
+      kNewTextureId, GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+  Texture* new_texture = manager2_->ConsumeTexture(GL_TEXTURE_2D, name);
+  EXPECT_FALSE(new_texture == NULL);
+  EXPECT_NE(texture, new_texture);
+  EXPECT_EQ(kNewTextureId, new_texture->service_id());
+
+  // Resize original texture
+  SetLevelInfo(texture,
+               GL_TEXTURE_2D,
+               0,
+               GL_RGBA,
+               16,
+               32,
+               1,
+               0,
+               GL_RGBA,
+               GL_UNSIGNED_BYTE,
+               true);
+  // Should have been orphaned
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+
+  // Synchronize again
+  EXPECT_CALL(*gl_, Flush()).Times(1);
+  manager_->PushTextureUpdates();
+  SetupUpdateTexParamExpectations(
+      kNewTextureId, GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+  manager2_->PullTextureUpdates();
+  GLsizei width, height;
+  new_texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height);
+  EXPECT_EQ(16, width);
+  EXPECT_EQ(32, height);
+
+  // Should have gotten a new attachment
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) != NULL);
+  // Resize original texture again....
+  SetLevelInfo(texture,
+               GL_TEXTURE_2D,
+               0,
+               GL_RGBA,
+               64,
+               64,
+               1,
+               0,
+               GL_RGBA,
+               GL_UNSIGNED_BYTE,
+               true);
+  // ...and immediately delete the texture which should save the changes.
+  SetupUpdateTexParamExpectations(
+      kNewTextureId, GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+  DestroyTexture(texture);
+
+  // Should be still around since there is a ref from manager2
+  EXPECT_EQ(new_texture, manager2_->ConsumeTexture(GL_TEXTURE_2D, name));
+
+  // The last change to the texture should be visible without a sync point (i.e.
+  // push).
+  manager2_->PullTextureUpdates();
+  new_texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height);
+  EXPECT_EQ(64, width);
+  EXPECT_EQ(64, height);
+
+  DestroyTexture(new_texture);
+  EXPECT_EQ(NULL, manager_->ConsumeTexture(GL_TEXTURE_2D, name));
+  EXPECT_EQ(NULL, manager2_->ConsumeTexture(GL_TEXTURE_2D, name));
+}
+
+// Makes sure changes are correctly published even when updates are
+// pushed in both directions, i.e. makes sure we don't clobber a shared
+// texture definition with an older version.
+TEST_F(MailboxManagerSyncTest, ProduceConsumeBidirectional) {
+  const GLuint kNewTextureId1 = 1234;
+  const GLuint kNewTextureId2 = 4321;
+
+  Texture* texture1 = DefineTexture();
+  Mailbox name1 = Mailbox::Generate();
+  Texture* texture2 = DefineTexture();
+  Mailbox name2 = Mailbox::Generate();
+  Texture* new_texture1 = NULL;
+  Texture* new_texture2 = NULL;
+
+  manager_->ProduceTexture(GL_TEXTURE_2D, name1, texture1);
+  manager2_->ProduceTexture(GL_TEXTURE_2D, name2, texture2);
+
+  // Make visible.
+  EXPECT_CALL(*gl_, Flush()).Times(2);
+  manager_->PushTextureUpdates();
+  manager2_->PushTextureUpdates();
+
+  // Create textures in the other manager instances for texture1 and texture2,
+  // respectively to create a real sharing scenario. Otherwise, there would
+  // never be conflicting updates/pushes.
+  {
+    InSequence sequence;
+    EXPECT_CALL(*gl_, GenTextures(1, _))
+        .WillOnce(SetArgPointee<1>(kNewTextureId1));
+    SetupUpdateTexParamExpectations(
+        kNewTextureId1, GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+    new_texture1 = manager2_->ConsumeTexture(GL_TEXTURE_2D, name1);
+    EXPECT_CALL(*gl_, GenTextures(1, _))
+        .WillOnce(SetArgPointee<1>(kNewTextureId2));
+    SetupUpdateTexParamExpectations(
+        kNewTextureId2, GL_LINEAR, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+    new_texture2 = manager_->ConsumeTexture(GL_TEXTURE_2D, name2);
+  }
+  EXPECT_EQ(kNewTextureId1, new_texture1->service_id());
+  EXPECT_EQ(kNewTextureId2, new_texture2->service_id());
+
+  // Make a change to texture1
+  DCHECK_EQ(static_cast<GLuint>(GL_LINEAR), texture1->min_filter());
+  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR),
+            SetParameter(texture1, GL_TEXTURE_MIN_FILTER, GL_NEAREST));
+
+  // Make sure this does not clobber it with the previous version we pushed.
+  manager_->PullTextureUpdates();
+
+  // Make a change to texture2
+  DCHECK_EQ(static_cast<GLuint>(GL_LINEAR), texture2->mag_filter());
+  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR),
+            SetParameter(texture2, GL_TEXTURE_MAG_FILTER, GL_NEAREST));
+
+  Mock::VerifyAndClearExpectations(gl_.get());
+
+  // Synchronize in both directions
+  EXPECT_CALL(*gl_, Flush()).Times(2);
+  manager_->PushTextureUpdates();
+  manager2_->PushTextureUpdates();
+  // manager1 should see the change to texture2 mag_filter being applied.
+  SetupUpdateTexParamExpectations(
+      new_texture2->service_id(), GL_LINEAR, GL_NEAREST, GL_REPEAT, GL_REPEAT);
+  manager_->PullTextureUpdates();
+  // manager2 should see the change to texture1 min_filter being applied.
+  SetupUpdateTexParamExpectations(
+      new_texture1->service_id(), GL_NEAREST, GL_LINEAR, GL_REPEAT, GL_REPEAT);
+  manager2_->PullTextureUpdates();
+
+  DestroyTexture(texture1);
+  DestroyTexture(texture2);
+  DestroyTexture(new_texture1);
+  DestroyTexture(new_texture2);
+}
+
+// TODO: different texture into same mailbox
+
+// TODO: same texture, multiple mailboxes
+
+// TODO: Produce incomplete texture
+
+// TODO: Texture::level_infos_[][].size()
+
+// TODO: unsupported targets and formats
+
 }  // namespace gles2
 }  // namespace gpu