Service/ClientDiscardableManager

gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc

 // Copyright 2014 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/gles2_cmd_decoder.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/common/id_allocator.h"
 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/context_state.h"
 #include "gpu/command_buffer/service/gl_surface_mock.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest.h"
 #include "gpu/command_buffer/service/image_manager.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/mocks.h"
 #include "gpu/command_buffer/service/program_manager.h"
+#include "gpu/command_buffer/service/service_discardable_manager.h"
 #include "gpu/command_buffer/service/test_helper.h"
 #include "gpu/config/gpu_switches.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_image_stub.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_mock.h"
 #include "ui/gl/gl_surface_stub.h"
 
 #if !defined(GL_DEPTH24_STENCIL8)
 #define GL_DEPTH24_STENCIL8 0x88F0
 #endif
 
 using ::gl::MockGLInterface;
 using ::testing::_;
+using ::testing::AnyNumber;
 using ::testing::DoAll;
 using ::testing::InSequence;
 using ::testing::Invoke;
 using ::testing::MatcherCast;
 using ::testing::Mock;
 using ::testing::Pointee;
 using ::testing::Return;
 using ::testing::SaveArg;
 using ::testing::SetArrayArgument;
 using ::testing::SetArgPointee;
@@ skipping 4804 matching lines @@
     typedef GetTexParameteriv::Result Result;
     Result* result = static_cast<Result*>(shared_memory_address_);
     result->size = 0;
     GetTexParameteriv cmd;
     cmd.Init(kTarget, kSwizzleParam, shared_memory_id_, shared_memory_offset_);
     EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
     EXPECT_EQ(GL_INVALID_ENUM, GetGLError());
   }
 }
 
+TEST_P(GLES2DecoderTest, TestInitDiscardableTexture) {
+  EXPECT_EQ(0u, group().discardable_manager()->NumCacheEntriesForTesting());
+  DoInitializeDiscardableTextureCHROMIUM(client_texture_id_);
+  EXPECT_EQ(1u, group().discardable_manager()->NumCacheEntriesForTesting());
+}
+
+TEST_P(GLES2DecoderTest, TestInitInvalidDiscardableTexture) {
+  EXPECT_EQ(0u, group().discardable_manager()->NumCacheEntriesForTesting());
+  DoInitializeDiscardableTextureCHROMIUM(0);
+  EXPECT_EQ(0u, group().discardable_manager()->NumCacheEntriesForTesting());
+  EXPECT_EQ(GL_INVALID_VALUE, GetGLError());
+}
+
+TEST_P(GLES2DecoderTest, TestUnlockDiscardableTexture) {
+  const ContextGroup& context_group = group();
+  EXPECT_EQ(0u,
+            context_group.discardable_manager()->NumCacheEntriesForTesting());
+  DoInitializeDiscardableTextureCHROMIUM(client_texture_id_);
+  EXPECT_TRUE(context_group.discardable_manager()->IsEntryLockedForTesting(
+      client_texture_id_, context_group.texture_manager()));
+  DoUnlockDiscardableTextureCHROMIUM(client_texture_id_);
+  EXPECT_FALSE(context_group.discardable_manager()->IsEntryLockedForTesting(
+      client_texture_id_, context_group.texture_manager()));
+}
+
+TEST_P(GLES2DecoderTest, TestDeleteDiscardableTexture) {
+  EXPECT_EQ(0u, group().discardable_manager()->NumCacheEntriesForTesting());
+  DoInitializeDiscardableTextureCHROMIUM(client_texture_id_);
+  EXPECT_EQ(1u, group().discardable_manager()->NumCacheEntriesForTesting());
+  DoDeleteTexture(client_texture_id_, kServiceTextureId);
+  EXPECT_EQ(0u, group().discardable_manager()->NumCacheEntriesForTesting());
+}
+
+TEST_P(GLES2DecoderManualInitTest,
+       TestDiscardableTextureUnusableWhileUnlocked) {
+  base::CommandLine command_line(0, NULL);
+  InitState init;
+  init.bind_generates_resource = false;
+  InitDecoderWithCommandLine(init, &command_line);
+
+  DoInitializeDiscardableTextureCHROMIUM(client_texture_id_);
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, 0)).RetiresOnSaturation();
+  DoUnlockDiscardableTextureCHROMIUM(client_texture_id_);
+  {
+    // Avoid DoBindTexture, as we expect failure.
+    cmds::BindTexture cmd;
+    cmd.Init(GL_TEXTURE_2D, client_texture_id_);
+    EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  }
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+  DoLockDiscardableTextureCHROMIUM(client_texture_id_);
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
+TEST_P(GLES2DecoderTest, TestDiscardableTextureBindGeneratesUnlocked) {
+  DoInitializeDiscardableTextureCHROMIUM(client_texture_id_);
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+  // Unlock will unbind the texture.
+  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, 0)).RetiresOnSaturation();
+  DoUnlockDiscardableTextureCHROMIUM(client_texture_id_);
+
+  // At this point, the texture is unlocked and unusable. Bind will generate a
+  // new resource.
+  EXPECT_CALL(*gl_, GenTextures(_, _))
+      .WillOnce(SetArgPointee<1>(kNewServiceId))
+      .RetiresOnSaturation();
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kNewServiceId);
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+
+  // Re-locking should unbind and overwrite the generated resource (leading to
+  // it's deletion).

[piman, 2017/05/12 18:01:27]

nit: not sure about this comment... I think the behavior is that the newly
generated resource stays, it's the unlocked texture that gets destroyed (and
that's what you test).
Also, "it's" -> "its" :)

[ericrk, 2017/05/12 20:24:00]

yup. Updated

+  EXPECT_CALL(*gl_, DeleteTextures(1, Pointee(kServiceTextureId)))
+      .RetiresOnSaturation();
+  DoLockDiscardableTextureCHROMIUM(client_texture_id_);
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kNewServiceId);
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
 // TODO(gman): Complete this test.
 // TEST_P(GLES2DecoderTest, CompressedTexImage2DGLError) {
 // }
 
 // TODO(gman): CompressedTexImage2D
 
 // TODO(gman): CompressedTexImage2DImmediate
 
 // TODO(gman): CompressedTexSubImage2DImmediate
 
 // TODO(gman): TexImage2D
 
 // TODO(gman): TexImage2DImmediate
 
 // TODO(gman): TexSubImage2DImmediate
 
 }  // namespace gles2
 }  // namespace gpu