Fixes for the default texture.

Since we are simulating non-shared resources on top
of shared resources we can't actually let contexts
use texture 0 because they are all sharing it.

Also, moved the black textures to the texture manager.

TEST=unit tests and ran conformance tests
BUG=none

Review URL: http://codereview.chromium.org/3150026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57214 0039d316-1c4b-4281-b951-d872f2087c98

12 files changed, 288 insertions, 173 deletions

diff --git a/gpu/command_buffer/service/context_group.cc b/gpu/command_buffer/service/context_group.cc
index 5cedbbd..64150ca 100644
--- a/gpu/command_buffer/service/context_group.cc
+++ b/gpu/command_buffer/service/context_group.cc
@@ -206,6 +206,10 @@ bool ContextGroup::Initialize() {
     max_vertex_uniform_vectors_ /= 4;
   }
 
+  if (!texture_manager_->Initialize()) {
+    return false;
+  }
+
   initialized_ = true;
   return true;
 }
diff --git a/gpu/command_buffer/service/context_group_unittest.cc b/gpu/command_buffer/service/context_group_unittest.cc
index c8717c4..be6888e 100644
--- a/gpu/command_buffer/service/context_group_unittest.cc
+++ b/gpu/command_buffer/service/context_group_unittest.cc
@@ -5,6 +5,7 @@
 #include "gpu/command_buffer/service/context_group.h"
 #include "app/gfx/gl/gl_mock.h"
 #include "base/scoped_ptr.h"
+#include "gpu/command_buffer/service/test_helper.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/GLES2/gles2_command_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -31,19 +32,11 @@ class ContextGroupTest : public testing::Test {
   ContextGroupTest() {
   }
 
-  void SetupInitExpectations(const char* extensions);
+  void SetupInitExpectations(const char* extensions) {
+    TestHelper::SetupContextGroupInitExpectations(gl_.get(), extensions);
+  }
 
  protected:
-  static const GLint kMaxTextureSize = 2048;
-  static const GLint kMaxCubeMapTextureSize = 256;
-  static const GLint kNumVertexAttribs = 16;
-  static const GLint kNumTextureUnits = 8;
-  static const GLint kMaxTextureImageUnits = 8;
-  static const GLint kMaxVertexTextureImageUnits = 2;
-  static const GLint kMaxFragmentUniformVectors = 16;
-  static const GLint kMaxVaryingVectors = 8;
-  static const GLint kMaxVertexUniformVectors = 128;
-
   virtual void SetUp() {
     gl_.reset(new ::testing::StrictMock< ::gfx::MockGLInterface>());
     ::gfx::GLInterface::SetGLInterface(gl_.get());
@@ -59,54 +52,6 @@ class ContextGroupTest : public testing::Test {
   ContextGroup group_;
 };
 
-// GCC requires these declarations, but MSVC requires they not be present
-#ifndef COMPILER_MSVC
-const GLint ContextGroupTest::kMaxTextureSize;
-const GLint ContextGroupTest::kMaxCubeMapTextureSize;
-const GLint ContextGroupTest::kNumVertexAttribs;
-const GLint ContextGroupTest::kNumTextureUnits;
-const GLint ContextGroupTest::kMaxTextureImageUnits;
-const GLint ContextGroupTest::kMaxVertexTextureImageUnits;
-const GLint ContextGroupTest::kMaxFragmentUniformVectors;
-const GLint ContextGroupTest::kMaxVaryingVectors;
-const GLint ContextGroupTest::kMaxVertexUniformVectors;
-#endif
-
-void ContextGroupTest::SetupInitExpectations(const char* extensions) {
-  InSequence sequence;
-
-  EXPECT_CALL(*gl_, GetString(GL_EXTENSIONS))
-      .WillOnce(Return(reinterpret_cast<const uint8*>(extensions)))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_ATTRIBS, _))
-      .WillOnce(SetArgumentPointee<1>(kNumVertexAttribs))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kNumTextureUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_TEXTURE_SIZE, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxTextureSize))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxCubeMapTextureSize))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxTextureImageUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVertexTextureImageUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxFragmentUniformVectors))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VARYING_FLOATS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVaryingVectors))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVertexUniformVectors))
-      .RetiresOnSaturation();
-}
-
 TEST_F(ContextGroupTest, Basic) {
   // Test it starts off uninitialized.
   EXPECT_EQ(0u, group_.max_vertex_attribs());
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 639ba86..24558d1 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -273,7 +273,7 @@ class FrameBuffer {
 };
 
 #if defined(GLES2_GPU_SERVICE_TRANSLATE_SHADER)
-void FinalizeShaderTranslator(void*) {
+void FinalizeShaderTranslator(void* /* dummy */) {
   ShFinalize();
 }
 
@@ -1226,12 +1226,6 @@ class GLES2DecoderImpl : public base::SupportsWeakPtr<GLES2DecoderImpl>,
   // Which textures are bound to texture units through glActiveTexture.
   scoped_array<TextureUnit> texture_units_;
 
-  // Black (0,0,0,1) textures for when non-renderable textures are used.
-  // NOTE: There is no corresponding TextureInfo for these textures.
-  // TextureInfos are only for textures the client side can access.
-  GLuint black_2d_texture_id_;
-  GLuint black_cube_texture_id_;
-
   // state saved for clearing so we can clear render buffers and then
   // restore to these values.
   GLclampf clear_red_;
@@ -1525,8 +1519,6 @@ GLES2DecoderImpl::GLES2DecoderImpl(ContextGroup* group)
       attrib_0_buffer_id_(0),
       attrib_0_size_(0),
       active_texture_unit_(0),
-      black_2d_texture_id_(0),
-      black_cube_texture_id_(0),
       clear_red_(0),
       clear_green_(0),
       clear_blue_(0),
@@ -1616,28 +1608,17 @@ bool GLES2DecoderImpl::Initialize(gfx::GLContext* context,
   texture_units_.reset(
       new TextureUnit[group_->max_texture_units()]);
   for (uint32 tt = 0; tt < group_->max_texture_units(); ++tt) {
-    texture_units_[tt].bound_texture_2d =
-        texture_manager()->GetDefaultTextureInfo(GL_TEXTURE_2D);
-    texture_units_[tt].bound_texture_cube_map =
+    glActiveTexture(GL_TEXTURE0 + tt);
+    // Do cube map first because we want the last bind to be 2D.
+    TextureManager::TextureInfo* info =
         texture_manager()->GetDefaultTextureInfo(GL_TEXTURE_CUBE_MAP);
+    texture_units_[tt].bound_texture_cube_map = info;
+    glBindTexture(GL_TEXTURE_CUBE_MAP, info->service_id());
+    info = texture_manager()->GetDefaultTextureInfo(GL_TEXTURE_2D);
+    texture_units_[tt].bound_texture_2d = info;
+    glBindTexture(GL_TEXTURE_2D, info->service_id());
   }
-
-  GLuint ids[2];
-  glGenTextures(2, ids);
-  // Make black textures for replacing non-renderable textures.
-  black_2d_texture_id_ = ids[0];
-  black_cube_texture_id_ = ids[1];
-  static uint8 black[] = {0, 0, 0, 255};
-  glBindTexture(GL_TEXTURE_2D, black_2d_texture_id_);
-  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA,
-               GL_UNSIGNED_BYTE, black);
-  glBindTexture(GL_TEXTURE_2D, 0);
-  glBindTexture(GL_TEXTURE_CUBE_MAP, black_cube_texture_id_);
-  for (int ii = 0; ii < GLES2Util::kNumFaces; ++ii) {
-    glTexImage2D(GLES2Util::IndexToGLFaceTarget(ii), 0, GL_RGBA, 1, 1, 0,
-                 GL_RGBA, GL_UNSIGNED_BYTE, black);
-  }
-  glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
+  glActiveTexture(GL_TEXTURE0);
   CHECK_GL_ERROR();
 
   if (context_->IsOffscreen()) {
@@ -2115,12 +2096,6 @@ void GLES2DecoderImpl::Destroy() {
   if (context_.get()) {
     MakeCurrent();
 
-    if (black_2d_texture_id_) {
-      glDeleteTextures(1, &black_2d_texture_id_);
-    }
-    if (black_cube_texture_id_) {
-      glDeleteTextures(1, &black_cube_texture_id_);
-    }
     if (attrib_0_buffer_id_) {
       glDeleteBuffersARB(1, &attrib_0_buffer_id_);
     }
@@ -3464,8 +3439,7 @@ bool GLES2DecoderImpl::SetBlackTextureForNonRenderableTextures() {
           glBindTexture(
               uniform_info->type == GL_SAMPLER_2D ? GL_TEXTURE_2D :
                                                     GL_TEXTURE_CUBE_MAP,
-              uniform_info->type == GL_SAMPLER_2D ? black_2d_texture_id_ :
-                                                    black_cube_texture_id_);
+              texture_manager()->black_texture_id(uniform_info->type));
         }
       }
       // else: should this be an error?
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
index 200f079..c282507 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -11,6 +11,7 @@
 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/program_manager.h"
+#include "gpu/command_buffer/service/test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::gfx::MockGLInterface;
@@ -96,7 +97,8 @@ TEST_F(GLES2DecoderWithShaderTest, DrawArraysBadTextureUsesBlack) {
     EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0))
         .Times(1)
         .RetiresOnSaturation();
-    EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceBlackTexture2dId))
+    EXPECT_CALL(*gl_, BindTexture(
+        GL_TEXTURE_2D, TestHelper::kServiceBlackTexture2dId))
         .Times(1)
         .RetiresOnSaturation();
     EXPECT_CALL(*gl_, DrawArrays(GL_TRIANGLES, 0, kNumVertices))
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
index 51e29dd..440440b 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
@@ -14,6 +14,7 @@
 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/program_manager.h"
+#include "gpu/command_buffer/service/test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::gfx::MockGLInterface;
@@ -41,36 +42,8 @@ void GLES2DecoderTestBase::InitDecoder(const char* extensions) {
 
   InSequence sequence;
 
-  EXPECT_CALL(*gl_, GetString(GL_EXTENSIONS))
-      .WillOnce(Return(reinterpret_cast<const uint8*>(extensions)))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_ATTRIBS, _))
-      .WillOnce(SetArgumentPointee<1>(kNumVertexAttribs))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kNumTextureUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_TEXTURE_SIZE, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxTextureSize))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxCubeMapTextureSize))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxTextureImageUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVertexTextureImageUnits))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxFragmentUniformVectors))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VARYING_FLOATS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVaryingVectors))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS, _))
-      .WillOnce(SetArgumentPointee<1>(kMaxVertexUniformVectors))
-      .RetiresOnSaturation();
+  TestHelper::SetupContextGroupInitExpectations(gl_.get(), "");
+
   EXPECT_CALL(*gl_, EnableVertexAttribArray(0))
       .Times(1)
       .RetiresOnSaturation();
@@ -91,45 +64,23 @@ void GLES2DecoderTestBase::InitDecoder(const char* extensions) {
       .Times(1)
       .RetiresOnSaturation();
 
-  static GLuint black_ids[] = {
-    kServiceBlackTexture2dId,
-    kServiceBlackTextureCubemapId,
-  };
-  EXPECT_CALL(*gl_, GenTextures(arraysize(black_ids), _))
-      .WillOnce(SetArrayArgument<1>(black_ids,
-                                    black_ids + arraysize(black_ids)))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceBlackTexture2dId))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA,
-                               GL_UNSIGNED_BYTE, _))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, 0))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_CUBE_MAP,
-                                kServiceBlackTextureCubemapId))
-      .Times(1)
-      .RetiresOnSaturation();
-  static GLenum faces[] = {
-      GL_TEXTURE_CUBE_MAP_POSITIVE_X,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
-      GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
-      GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
-      GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
-  };
-  for (size_t ii = 0; ii < arraysize(faces); ++ii) {
-    EXPECT_CALL(*gl_, TexImage2D(faces[ii], 0, GL_RGBA, 1, 1, 0, GL_RGBA,
-                                 GL_UNSIGNED_BYTE, _))
+  for (GLint tt = 0; tt < TestHelper::kNumTextureUnits; ++tt) {
+    EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0 + tt))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, BindTexture(
+        GL_TEXTURE_CUBE_MAP, TestHelper::kServiceDefaultTextureCubemapId))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, BindTexture(
+        GL_TEXTURE_2D, TestHelper::kServiceDefaultTexture2dId))
         .Times(1)
         .RetiresOnSaturation();
   }
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_CUBE_MAP, 0))
+  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0))
       .Times(1)
       .RetiresOnSaturation();
+
   EXPECT_CALL(*gl_, Enable(GL_VERTEX_PROGRAM_POINT_SIZE))
       .Times(1)
       .RetiresOnSaturation();
@@ -186,9 +137,6 @@ void GLES2DecoderTestBase::InitDecoder(const char* extensions) {
 void GLES2DecoderTestBase::TearDown() {
   // All Tests should have read all their GLErrors before getting here.
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
-  EXPECT_CALL(*gl_, DeleteTextures(1, _))
-      .Times(2)
-      .RetiresOnSaturation();
   EXPECT_CALL(*gl_, DeleteBuffersARB(1, _))
       .Times(1)
       .RetiresOnSaturation();
@@ -436,9 +384,6 @@ const GLint GLES2DecoderTestBase::kMaxFragmentUniformVectors;
 const GLint GLES2DecoderTestBase::kMaxVaryingVectors;
 const GLint GLES2DecoderTestBase::kMaxVertexUniformVectors;
 
-const GLuint GLES2DecoderTestBase::kServiceBlackTexture2dId;
-const GLuint GLES2DecoderTestBase::kServiceBlackTextureCubemapId;
-
 const GLuint GLES2DecoderTestBase::kServiceAttrib0BufferId;
 
 const GLuint GLES2DecoderTestBase::kServiceBufferId;
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
index d30e831..dfd78dc 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h
@@ -48,9 +48,6 @@ class GLES2DecoderTestBase : public testing::Test {
   static const GLint kMaxVaryingVectors = 8;
   static const GLint kMaxVertexUniformVectors = 128;
 
-  static const GLuint kServiceBlackTexture2dId = 701;
-  static const GLuint kServiceBlackTextureCubemapId = 702;
-
   static const GLuint kServiceAttrib0BufferId = 801;
 
   static const GLuint kServiceBufferId = 301;
@@ -168,6 +165,10 @@ class GLES2DecoderTestBase : public testing::Test {
 
   void InitDecoder(const char* extensions);
 
+  const ContextGroup& group() const {
+    return group_;
+  }
+
   struct AttribInfo {
     const char* name;
     GLint size;
diff --git a/gpu/command_buffer/service/test_helper.cc b/gpu/command_buffer/service/test_helper.cc
new file mode 100644
index 0000000..9002e7f
--- /dev/null
+++ b/gpu/command_buffer/service/test_helper.cc
@@ -0,0 +1,129 @@
+// Copyright (c) 2010 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/test_helper.h"
+#include "app/gfx/gl/gl_mock.h"
+#include "gpu/command_buffer/common/types.h"
+#include "gpu/GLES2/gles2_command_buffer.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::InSequence;
+using ::testing::MatcherCast;
+using ::testing::Pointee;
+using ::testing::Return;
+using ::testing::SetArrayArgument;
+using ::testing::SetArgumentPointee;
+using ::testing::StrEq;
+using ::testing::StrictMock;
+
+namespace gpu {
+namespace gles2 {
+
+// GCC requires these declarations, but MSVC requires they not be present
+#ifndef COMPILER_MSVC
+const GLuint TestHelper::kServiceBlackTexture2dId;
+const GLuint TestHelper::kServiceBlackTextureCubemapId;
+const GLuint TestHelper::kServiceDefaultTexture2dId;
+const GLuint TestHelper::kServiceDefaultTextureCubemapId;
+
+const GLint TestHelper::kMaxTextureSize;
+const GLint TestHelper::kMaxCubeMapTextureSize;
+const GLint TestHelper::kNumVertexAttribs;
+const GLint TestHelper::kNumTextureUnits;
+const GLint TestHelper::kMaxTextureImageUnits;
+const GLint TestHelper::kMaxVertexTextureImageUnits;
+const GLint TestHelper::kMaxFragmentUniformVectors;
+const GLint TestHelper::kMaxVaryingVectors;
+const GLint TestHelper::kMaxVertexUniformVectors;
+#endif
+
+void TestHelper::SetupTextureManagerInitExpectations(
+    ::gfx::MockGLInterface* gl) {
+  static GLuint texture_ids[] = {
+    kServiceBlackTexture2dId,
+    kServiceDefaultTexture2dId,
+    kServiceBlackTextureCubemapId,
+    kServiceDefaultTextureCubemapId,
+  };
+  EXPECT_CALL(*gl, GenTextures(arraysize(texture_ids), _))
+      .WillOnce(SetArrayArgument<1>(texture_ids,
+                                    texture_ids + arraysize(texture_ids)))
+      .RetiresOnSaturation();
+  for (int ii = 0; ii < 2; ++ii) {
+    EXPECT_CALL(*gl, BindTexture(GL_TEXTURE_2D, texture_ids[ii]))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl, TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA,
+                               GL_UNSIGNED_BYTE, _))
+        .Times(1)
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl, BindTexture(GL_TEXTURE_CUBE_MAP, texture_ids[2 + ii]))
+        .Times(1)
+        .RetiresOnSaturation();
+    static GLenum faces[] = {
+        GL_TEXTURE_CUBE_MAP_POSITIVE_X,
+        GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
+        GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
+        GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
+        GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
+        GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
+    };
+    for (size_t ii = 0; ii < arraysize(faces); ++ii) {
+      EXPECT_CALL(*gl, TexImage2D(faces[ii], 0, GL_RGBA, 1, 1, 0, GL_RGBA,
+                                 GL_UNSIGNED_BYTE, _))
+          .Times(1)
+          .RetiresOnSaturation();
+    }
+  }
+  EXPECT_CALL(*gl, BindTexture(GL_TEXTURE_2D, 0))
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, BindTexture(GL_TEXTURE_CUBE_MAP, 0))
+      .Times(1)
+      .RetiresOnSaturation();
+}
+
+void TestHelper::SetupContextGroupInitExpectations(
+      ::gfx::MockGLInterface* gl, const char* extensions) {
+  InSequence sequence;
+
+  EXPECT_CALL(*gl, GetString(GL_EXTENSIONS))
+      .WillOnce(Return(reinterpret_cast<const uint8*>(extensions)))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_VERTEX_ATTRIBS, _))
+      .WillOnce(SetArgumentPointee<1>(kNumVertexAttribs))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, _))
+      .WillOnce(SetArgumentPointee<1>(kNumTextureUnits))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_TEXTURE_SIZE, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxTextureSize))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxCubeMapTextureSize))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxTextureImageUnits))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxVertexTextureImageUnits))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxFragmentUniformVectors))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_VARYING_FLOATS, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxVaryingVectors))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl, GetIntegerv(GL_MAX_VERTEX_UNIFORM_COMPONENTS, _))
+      .WillOnce(SetArgumentPointee<1>(kMaxVertexUniformVectors))
+      .RetiresOnSaturation();
+
+  SetupTextureManagerInitExpectations(gl);
+}
+
+}  // namespace gles2
+}  // namespace gpu
+
diff --git a/gpu/command_buffer/service/test_helper.h b/gpu/command_buffer/service/test_helper.h
new file mode 100644
index 0000000..2858b50
--- /dev/null
+++ b/gpu/command_buffer/service/test_helper.h
@@ -0,0 +1,40 @@
+// Copyright (c) 2010 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_TEST_HELPER_H_
+#define GPU_COMMAND_BUFFER_SERVICE_TEST_HELPER_H_
+
+#include "app/gfx/gl/gl_mock.h"
+#include "gpu/GLES2/gles2_command_buffer.h"
+
+namespace gpu {
+namespace gles2 {
+
+class TestHelper {
+ public:
+  static const GLuint kServiceBlackTexture2dId = 701;
+  static const GLuint kServiceBlackTextureCubemapId = 702;
+  static const GLuint kServiceDefaultTexture2dId = 703;
+  static const GLuint kServiceDefaultTextureCubemapId = 704;
+
+  static const GLint kMaxTextureSize = 2048;
+  static const GLint kMaxCubeMapTextureSize = 256;
+  static const GLint kNumVertexAttribs = 16;
+  static const GLint kNumTextureUnits = 8;
+  static const GLint kMaxTextureImageUnits = 8;
+  static const GLint kMaxVertexTextureImageUnits = 2;
+  static const GLint kMaxFragmentUniformVectors = 16;
+  static const GLint kMaxVaryingVectors = 8;
+  static const GLint kMaxVertexUniformVectors = 128;
+
+  static void SetupContextGroupInitExpectations(
+      ::gfx::MockGLInterface* gl, const char* extensions);
+  static void SetupTextureManagerInitExpectations(::gfx::MockGLInterface* gl);
+};
+
+}  // namespace gles2
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_TEST_HELPER_H_
+
diff --git a/gpu/command_buffer/service/texture_manager.cc b/gpu/command_buffer/service/texture_manager.cc
index 2556197..607938e 100644
--- a/gpu/command_buffer/service/texture_manager.cc
+++ b/gpu/command_buffer/service/texture_manager.cc
@@ -75,6 +75,15 @@ void TextureManager::Destroy(bool have_context) {
     }
     texture_infos_.erase(texture_infos_.begin());
   }
+  if (have_context) {
+    GLuint ids[] = {
+      black_2d_texture_id_,
+      black_cube_texture_id_,
+      default_texture_2d_->service_id(),
+      default_texture_cube_map_->service_id(),
+    };
+    glDeleteTextures(arraysize(ids), ids);
+  }
 }
 
 bool TextureManager::TextureInfo::CanRender(
@@ -352,18 +361,50 @@ TextureManager::TextureManager(
       max_cube_map_levels_(ComputeMipMapCount(max_cube_map_texture_size,
                                               max_cube_map_texture_size,
                                               max_cube_map_texture_size)),
-      num_unrenderable_textures_(0) {
-  default_texture_2d_ = TextureInfo::Ref(new TextureInfo(0));
+      num_unrenderable_textures_(0),
+      black_2d_texture_id_(0),
+      black_cube_texture_id_(0) {
+}
+
+bool TextureManager::Initialize() {
+  // TODO(gman): The default textures have to be real textures, not the 0
+  // texture because we simulate non shared resources on top of shared
+  // resources and all contexts that share resource share the same default
+  // texture.
+
+  // Make default textures and texture for replacing non-renderable textures.
+  GLuint ids[4];
+  glGenTextures(arraysize(ids), ids);
+  static uint8 black[] = {0, 0, 0, 255};
+  for (int ii = 0; ii < 2; ++ii) {
+    glBindTexture(GL_TEXTURE_2D, ids[ii]);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA,
+                 GL_UNSIGNED_BYTE, black);
+    glBindTexture(GL_TEXTURE_CUBE_MAP, ids[2 + ii]);
+    for (int ii = 0; ii < GLES2Util::kNumFaces; ++ii) {
+      glTexImage2D(GLES2Util::IndexToGLFaceTarget(ii), 0, GL_RGBA, 1, 1, 0,
+                   GL_RGBA, GL_UNSIGNED_BYTE, black);
+    }
+  }
+  glBindTexture(GL_TEXTURE_2D, 0);
+  glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
+
+  default_texture_2d_ = TextureInfo::Ref(new TextureInfo(ids[1]));
   SetInfoTarget(default_texture_2d_, GL_TEXTURE_2D);
   default_texture_2d_->SetLevelInfo(
     this, GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE);
-  default_texture_cube_map_ = TextureInfo::Ref(new TextureInfo(0));
+  default_texture_cube_map_ = TextureInfo::Ref(new TextureInfo(ids[3]));
   SetInfoTarget(default_texture_cube_map_, GL_TEXTURE_CUBE_MAP);
   for (int ii = 0; ii < GLES2Util::kNumFaces; ++ii) {
     default_texture_cube_map_->SetLevelInfo(
       this, GLES2Util::IndexToGLFaceTarget(ii),
       0, GL_RGBA, 1, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE);
   }
+
+  black_2d_texture_id_ = ids[0];
+  black_cube_texture_id_ = ids[2];
+
+  return true;
 }
 
 bool TextureManager::ValidForTarget(
diff --git a/gpu/command_buffer/service/texture_manager.h b/gpu/command_buffer/service/texture_manager.h
index 070a801..2ec46c1 100644
--- a/gpu/command_buffer/service/texture_manager.h
+++ b/gpu/command_buffer/service/texture_manager.h
@@ -217,6 +217,9 @@ class TextureManager {
                  GLsizei max_cube_map_texture_size);
   ~TextureManager();
 
+  // Init the texture manager.
+  bool Initialize();
+
   // Must call before destruction.
   void Destroy(bool have_context);
 
@@ -302,6 +305,11 @@ class TextureManager {
     return num_unrenderable_textures_ > 0;
   }
 
+  GLuint black_texture_id(GLenum target) const {
+    return target == GL_SAMPLER_2D ?  black_2d_texture_id_ :
+                                      black_cube_texture_id_;
+  }
+
  private:
   // Info for each texture in the system.
   // TODO(gman): Choose a faster container.
@@ -318,6 +326,12 @@ class TextureManager {
 
   int num_unrenderable_textures_;
 
+  // Black (0,0,0,1) textures for when non-renderable textures are used.
+  // NOTE: There is no corresponding TextureInfo for these textures.
+  // TextureInfos are only for textures the client side can access.
+  GLuint black_2d_texture_id_;
+  GLuint black_cube_texture_id_;
+
   // The default textures for each target (texture name = 0)
   TextureInfo::Ref default_texture_2d_;
   TextureInfo::Ref default_texture_cube_map_;
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 5f55d32..b313b32 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -7,8 +7,10 @@
 #include "app/gfx/gl/gl_mock.h"
 #include "gpu/GLES2/gles2_command_buffer.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "gpu/command_buffer/service/test_helper.h"
 
 using ::testing::Pointee;
+using ::testing::_;
 
 namespace gpu {
 namespace gles2 {
@@ -20,6 +22,12 @@ class TextureManagerTest : public testing::Test {
   static const GLint kMax2dLevels = 5;
   static const GLint kMaxCubeMapLevels = 4;
 
+  static const GLuint kServiceBlackTexture2dId = 701;
+  static const GLuint kServiceBlackTextureCubemapId = 702;
+  static const GLuint kServiceDefaultTexture2dId = 703;
+  static const GLuint kServiceDefaultTextureCubemapId = 704;
+
+
   TextureManagerTest()
       : manager_(false, false, false, kMaxTextureSize, kMaxCubeMapTextureSize) {
   }
@@ -32,6 +40,9 @@ class TextureManagerTest : public testing::Test {
   virtual void SetUp() {
     gl_.reset(new ::testing::StrictMock< ::gfx::MockGLInterface>());
     ::gfx::GLInterface::SetGLInterface(gl_.get());
+
+    TestHelper::SetupTextureManagerInitExpectations(gl_.get());
+    manager_.Initialize();
   }
 
   virtual void TearDown() {
@@ -50,6 +61,10 @@ const GLint TextureManagerTest::kMaxTextureSize;
 const GLint TextureManagerTest::kMaxCubeMapTextureSize;
 const GLint TextureManagerTest::kMax2dLevels;
 const GLint TextureManagerTest::kMaxCubeMapLevels;
+const GLuint TextureManagerTest::kServiceBlackTexture2dId;
+const GLuint TextureManagerTest::kServiceBlackTextureCubemapId;
+const GLuint TextureManagerTest::kServiceDefaultTexture2dId;
+const GLuint TextureManagerTest::kServiceDefaultTextureCubemapId;
 #endif
 
 TEST_F(TextureManagerTest, Basic) {
@@ -87,6 +102,9 @@ TEST_F(TextureManagerTest, Destroy) {
   EXPECT_CALL(*gl_, DeleteTextures(1, ::testing::Pointee(kService1Id)))
       .Times(1)
       .RetiresOnSaturation();
+  EXPECT_CALL(*gl_, DeleteTextures(4, _))
+      .Times(1)
+      .RetiresOnSaturation();
   manager_.Destroy(true);
   // Check that resources got freed.
   info1 = manager_.GetTextureInfo(kClient1Id);
diff --git a/gpu/gpu.gyp b/gpu/gpu.gyp
index 6c9a525..1c7dea7 100644
--- a/gpu/gpu.gyp
+++ b/gpu/gpu.gyp
@@ -270,6 +270,8 @@
         'command_buffer/service/program_manager_unittest.cc',
         'command_buffer/service/renderbuffer_manager_unittest.cc',
         'command_buffer/service/shader_manager_unittest.cc',
+        'command_buffer/service/test_helper.h',
+        'command_buffer/service/test_helper.cc',
         'command_buffer/service/texture_manager_unittest.cc',
       ],
     },