Add GLES2Interface version of TWGC3D

cc/test/test_gles2_interface.cc

Index: cc/test/test_gles2_interface.cc
diff --git a/cc/test/test_gles2_interface.cc b/cc/test/test_gles2_interface.cc
new file mode 100644
index 0000000000000000000000000000000000000000..585a4bd9833cf2b107d5e94cb2dfbf6beac7c7e1
--- /dev/null
+++ b/cc/test/test_gles2_interface.cc
@@ -0,0 +1,592 @@
+// Copyright 2013 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 "cc/test/test_gles2_interface.h"
+
+#include <algorithm>
+#include <string>
+
+#include "base/bind.h"
+#include "base/lazy_instance.h"
+#include "base/logging.h"
+#include "base/message_loop/message_loop.h"
+#include "cc/test/test_context_support.h"
+#include "gpu/GLES2/gl2extchromium.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/khronos/GLES2/gl2ext.h"
+
+namespace cc {
+
+static const GLuint kFramebufferId = 1;
+static const GLuint kRenderbufferId = 3;
+
+static uint8 s_context_id = 1;
+
+const GLuint TestGLES2Interface::kExternalTextureId = 1337;
+
+static base::LazyInstance<base::Lock>::Leaky
+    g_shared_namespace_lock = LAZY_INSTANCE_INITIALIZER;
+
+TestGLES2Interface::Namespace*
+    TestGLES2Interface::shared_namespace_ = NULL;
+
+TestGLES2Interface::Namespace::Namespace()
+    : next_buffer_id(1),
+      next_image_id(1),
+      next_texture_id(1) {
+}
+
+TestGLES2Interface::Namespace::~Namespace() {
+  g_shared_namespace_lock.Get().AssertAcquired();
+  if (shared_namespace_ == this)
+    shared_namespace_ = NULL;
+}
+
+// static
+scoped_ptr<TestGLES2Interface> TestGLES2Interface::Create() {
+  return make_scoped_ptr(new TestGLES2Interface());
+}
+
+TestGLES2Interface::TestGLES2Interface()
+    : context_id_(s_context_id++),
+      times_make_current_succeeds_(-1),
+      times_bind_texture_succeeds_(-1),
+      times_end_query_succeeds_(-1),
+      times_gen_mailbox_succeeds_(-1),
+      context_lost_(false),
+      times_map_image_chromium_succeeds_(-1),
+      times_map_buffer_chromium_succeeds_(-1),
+      next_program_id_(1000u),
+      next_shader_id_(2000u),
+      max_texture_size_(2048),
+      width_(0),
+      height_(0),
+      test_support_(NULL),
+      bound_buffer_(0),
+      weak_ptr_factory_(this) {
+  CreateNamespace();
+  test_capabilities_.swapbuffers_complete_callback = true;
+}
+
+TestGLES2Interface::~TestGLES2Interface() {
+  base::AutoLock lock(g_shared_namespace_lock.Get());
+  namespace_ = NULL;
+}
+
+void TestGLES2Interface::CreateNamespace() {
+  base::AutoLock lock(g_shared_namespace_lock.Get());
+  if (shared_namespace_) {
+    namespace_ = shared_namespace_;
+  } else {
+    namespace_ = new Namespace;
+    shared_namespace_ = namespace_.get();
+  }
+}
+
+bool TestGLES2Interface::makeContextCurrent() {
+  if (times_make_current_succeeds_ >= 0) {
+    if (!times_make_current_succeeds_) {
+      LoseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
+                          GL_INNOCENT_CONTEXT_RESET_ARB);
+    }
+    --times_make_current_succeeds_;
+  }
+  return !context_lost_;
+}
+
+void TestGLES2Interface::reshapeWithScaleFactor(
+    int width, int height, float scale_factor) {
+  width_ = width;
+  height_ = height;
+}
+
+bool TestGLES2Interface::isContextLost() {
+  return context_lost_;
+}
+
+GLuint TestGLES2Interface::CreateExternalTexture() {
+  base::AutoLock lock(namespace_->lock);
+  namespace_->textures.Append(kExternalTextureId, new TestTexture());
+  return kExternalTextureId;
+}
+
+GLenum TestGLES2Interface::CheckFramebufferStatus(
+    GLenum target) {
+  if (context_lost_)
+    return GL_FRAMEBUFFER_UNDEFINED_OES;
+  return GL_FRAMEBUFFER_COMPLETE;
+}
+
+const GLubyte* TestGLES2Interface::GetString(GLenum name) {
+  return NULL;
+}
+
+GLint TestGLES2Interface::GetUniformLocation(
+    GLuint program,
+    const GLchar* name) {
+  return 0;
+}
+
+void TestGLES2Interface::GetVertexAttribPointerv(
+    GLuint index,
+    GLenum pname,
+    void** pointer) {
+  *pointer = NULL;
+}
+
+void TestGLES2Interface::GenBuffers(GLsizei count, GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    ids[i] = NextBufferId();
+}
+
+void TestGLES2Interface::GenFramebuffers(
+    GLsizei count, GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    ids[i] = kFramebufferId | context_id_ << 16;
+}
+
+void TestGLES2Interface::GenRenderbuffers(
+    GLsizei count, GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    ids[i] = kRenderbufferId | context_id_ << 16;
+}
+
+void TestGLES2Interface::GenTextures(GLsizei count, GLuint* ids) {
+  for (int i = 0; i < count; ++i) {
+    ids[i] = NextTextureId();
+    DCHECK_NE(ids[i], kExternalTextureId);
+  }
+  base::AutoLock lock(namespace_->lock);
+  for (int i = 0; i < count; ++i)
+    namespace_->textures.Append(ids[i], new TestTexture());
+}
+
+void TestGLES2Interface::DeleteBuffers(GLsizei count, const GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    RetireBufferId(ids[i]);
+}
+
+void TestGLES2Interface::DeleteFramebuffers(
+    GLsizei count, const GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    DCHECK_EQ(kFramebufferId | context_id_ << 16, ids[i]);
+}
+
+void TestGLES2Interface::DeleteRenderbuffers(
+    GLsizei count, const GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    DCHECK_EQ(kRenderbufferId | context_id_ << 16, ids[i]);
+}
+
+void TestGLES2Interface::DeleteTextures(GLsizei count, const GLuint* ids) {
+  for (int i = 0; i < count; ++i)
+    RetireTextureId(ids[i]);
+  base::AutoLock lock(namespace_->lock);
+  for (int i = 0; i < count; ++i) {
+    namespace_->textures.Remove(ids[i]);
+    texture_targets_.UnbindTexture(ids[i]);
+  }
+}
+
+GLuint TestGLES2Interface::CreateProgram() {
+  GLuint program = next_program_id_++ | context_id_ << 16;
+  program_set_.insert(program);
+  return program;
+}
+
+GLuint TestGLES2Interface::CreateShader(GLenum) {
+  GLuint shader = next_shader_id_++ | context_id_ << 16;
+  shader_set_.insert(shader);
+  return shader;
+}
+
+void TestGLES2Interface::DeleteProgram(GLuint id) {
+  if (!program_set_.count(id))
+    ADD_FAILURE() << "DeleteProgram called on unknown program " << id;
+  program_set_.erase(id);
+}
+
+void TestGLES2Interface::DeleteShader(GLuint id) {
+  if (!shader_set_.count(id))
+    ADD_FAILURE() << "DeleteShader called on unknown shader " << id;
+  shader_set_.erase(id);
+}
+
+void TestGLES2Interface::AttachShader(GLuint program, GLuint shader) {
+  if (!program_set_.count(program))
+    ADD_FAILURE() << "AttachShader called with unknown program " << program;
+  if (!shader_set_.count(shader))
+    ADD_FAILURE() << "AttachShader called with unknown shader " << shader;
+}
+
+void TestGLES2Interface::UseProgram(GLuint program) {
+  if (!program)
+    return;
+  if (!program_set_.count(program))
+    ADD_FAILURE() << "UseProgram called on unknown program " << program;
+}
+
+void TestGLES2Interface::BindFramebuffer(
+    GLenum target, GLuint framebuffer) {
+  if (!framebuffer)
+    return;
+  DCHECK_EQ(kFramebufferId | context_id_ << 16, framebuffer);
+}
+
+void TestGLES2Interface::BindRenderbuffer(
+      GLenum target, GLuint renderbuffer) {
+  if (!renderbuffer)
+    return;
+  DCHECK_EQ(kRenderbufferId | context_id_ << 16, renderbuffer);
+}
+
+void TestGLES2Interface::BindTexture(
+    GLenum target, GLuint texture_id) {
+  if (times_bind_texture_succeeds_ >= 0) {
+    if (!times_bind_texture_succeeds_) {
+      LoseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
+                          GL_INNOCENT_CONTEXT_RESET_ARB);
+    }
+    --times_bind_texture_succeeds_;
+  }
+
+  if (!texture_id)
+    return;
+  base::AutoLock lock(namespace_->lock);
+  DCHECK(namespace_->textures.ContainsId(texture_id));
+  texture_targets_.BindTexture(target, texture_id);
+  used_textures_.insert(texture_id);
+}
+
+GLuint TestGLES2Interface::BoundTextureId(
+    GLenum target) {
+  return texture_targets_.BoundTexture(target);
+}
+
+void TestGLES2Interface::EndQueryEXT(GLenum target) {
+  if (times_end_query_succeeds_ >= 0) {
+    if (!times_end_query_succeeds_) {
+      LoseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
+                          GL_INNOCENT_CONTEXT_RESET_ARB);
+    }
+    --times_end_query_succeeds_;
+  }
+}
+
+void TestGLES2Interface::GetQueryObjectuivEXT(
+    GLuint query,
+    GLenum pname,
+    GLuint* params) {
+  // If the context is lost, behave as if result is available.
+  if (pname == GL_QUERY_RESULT_AVAILABLE_EXT)
+    *params = 1;
+}
+
+void TestGLES2Interface::GetIntegerv(
+    GLenum pname,
+    GLint* value) {
+  if (pname == GL_MAX_TEXTURE_SIZE)
+    *value = max_texture_size_;
+  else if (pname == GL_ACTIVE_TEXTURE)
+    *value = GL_TEXTURE0;
+}
+
+void TestGLES2Interface::GenMailboxCHROMIUM(GLbyte* mailbox) {
+  if (times_gen_mailbox_succeeds_ >= 0) {
+    if (!times_gen_mailbox_succeeds_) {
+      LoseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
+                          GL_INNOCENT_CONTEXT_RESET_ARB);
+    }
+    --times_gen_mailbox_succeeds_;
+  }
+  if (context_lost_) {
+    memset(mailbox, 0, 64);
+    return;
+  }
+
+  static char mailbox_name1 = '1';
+  static char mailbox_name2 = '1';
+  mailbox[0] = mailbox_name1;
+  mailbox[1] = mailbox_name2;
+  mailbox[2] = '\0';
+  if (++mailbox_name1 == 0) {
+    mailbox_name1 = '1';
+    ++mailbox_name2;
+  }
+}
+
+void TestGLES2Interface::LoseContextCHROMIUM(GLenum current,
+                                                   GLenum other) {
+  if (context_lost_)
+    return;
+  context_lost_ = true;
+  /*
+  if (context_lost_callback_)
+    context_lost_callback_->onContextLost();
+  */
+  for (size_t i = 0; i < shared_contexts_.size(); ++i)
+    shared_contexts_[i]->LoseContextCHROMIUM(current, other);
+  shared_contexts_.clear();
+}
+
+/*
+void TestGLES2Interface::prepareTexture() {
+  // TODO(jamesr): This should implemented as ContextSupport::SwapBuffers().
+  if (swap_buffers_callback_) {
+    base::MessageLoop::current()->PostTask(
+        FROM_HERE, base::Bind(&TestGLES2Interface::SwapBuffersComplete,
+                              weak_ptr_factory_.GetWeakPtr()));
+  }
+  test_support_->CallAllSyncPointCallbacks();
+}
+*/
+
+void TestGLES2Interface::Finish() {
+  test_support_->CallAllSyncPointCallbacks();
+}
+
+void TestGLES2Interface::Flush() {
+  test_support_->CallAllSyncPointCallbacks();
+}
+
+/*
+void TestGLES2Interface::SwapBuffersComplete() {
+  if (swap_buffers_callback_)
+    swap_buffers_callback_->onSwapBuffersComplete();
+}
+*/
+
+void TestGLES2Interface::BindBuffer(GLenum target,
+                                          GLuint buffer) {
+  bound_buffer_ = buffer;
+  if (!bound_buffer_)
+    return;
+  uint8 context_id = buffer >> 16;
+  uint8 buffer_id = buffer & 0xffff;
+  base::AutoLock lock(namespace_->lock);
+  DCHECK(buffer_id);
+  DCHECK_LT(buffer_id, namespace_->next_buffer_id);
+  DCHECK_EQ(context_id, context_id_);
+
+  base::ScopedPtrHashMap<uint8, Buffer>& buffers = namespace_->buffers;
+  if (buffers.count(bound_buffer_) == 0)
+    buffers.set(bound_buffer_, make_scoped_ptr(new Buffer).Pass());
+
+  buffers.get(bound_buffer_)->target = target;
+}
+
+void TestGLES2Interface::BufferData(GLenum target,
+                                          GLsizeiptr size,
+                                          const void* data,
+                                          GLenum usage) {
+  base::AutoLock lock(namespace_->lock);
+  base::ScopedPtrHashMap<uint8, Buffer>& buffers = namespace_->buffers;
+  DCHECK_GT(buffers.count(bound_buffer_), 0u);
+  DCHECK_EQ(target, buffers.get(bound_buffer_)->target);
+  Buffer* buffer = buffers.get(bound_buffer_);
+  if (context_lost_) {
+    buffer->pixels.reset();
+    return;
+  }
+
+  buffer->pixels.reset(new uint8[size]);
+  buffer->size = size;
+  if (data != NULL)
+    memcpy(buffer->pixels.get(), data, size);
+}
+
+void* TestGLES2Interface::MapBufferCHROMIUM(GLenum target,
+                                                  GLenum access) {
+  base::AutoLock lock(namespace_->lock);
+  base::ScopedPtrHashMap<uint8, Buffer>& buffers = namespace_->buffers;
+  DCHECK_GT(buffers.count(bound_buffer_), 0u);
+  DCHECK_EQ(target, buffers.get(bound_buffer_)->target);
+  if (times_map_buffer_chromium_succeeds_ >= 0) {
+    if (!times_map_buffer_chromium_succeeds_) {
+      return NULL;
+    }
+    --times_map_buffer_chromium_succeeds_;
+  }
+  return buffers.get(bound_buffer_)->pixels.get();
+}
+
+GLboolean TestGLES2Interface::UnmapBufferCHROMIUM(
+    GLenum target) {
+  base::AutoLock lock(namespace_->lock);
+  base::ScopedPtrHashMap<uint8, Buffer>& buffers = namespace_->buffers;
+  DCHECK_GT(buffers.count(bound_buffer_), 0u);
+  DCHECK_EQ(target, buffers.get(bound_buffer_)->target);
+  buffers.get(bound_buffer_)->pixels.reset();
+  return true;
+}
+
+GLuint TestGLES2Interface::CreateImageCHROMIUM(
+      GLsizei width, GLsizei height,
+      GLenum internalformat) {
+  DCHECK_EQ(GL_RGBA8_OES, static_cast<int>(internalformat));
+  GLuint image_id = NextImageId();
+  base::AutoLock lock(namespace_->lock);
+  base::ScopedPtrHashMap<uint8, Image>& images = namespace_->images;
+  images.set(image_id, make_scoped_ptr(new Image).Pass());
+  images.get(image_id)->pixels.reset(new uint8[width * height * 4]);
+  return image_id;
+}
+
+void TestGLES2Interface::DestroyImageCHROMIUM(
+    GLuint id) {
+  RetireImageId(id);
+}
+
+void TestGLES2Interface::GetImageParameterivCHROMIUM(
+    GLuint image_id,
+    GLenum pname,
+    GLint* params) {
+  base::AutoLock lock(namespace_->lock);
+  DCHECK_GT(namespace_->images.count(image_id), 0u);
+  DCHECK_EQ(GL_IMAGE_ROWBYTES_CHROMIUM, static_cast<int>(pname));
+  *params = 0;
+}
+
+void* TestGLES2Interface::MapImageCHROMIUM(GLuint image_id,
+                                                 GLenum access) {
+  base::AutoLock lock(namespace_->lock);
+  base::ScopedPtrHashMap<uint8, Image>& images = namespace_->images;
+  DCHECK_GT(images.count(image_id), 0u);
+  if (times_map_image_chromium_succeeds_ >= 0) {
+    if (!times_map_image_chromium_succeeds_) {
+      return NULL;
+    }
+    --times_map_image_chromium_succeeds_;
+  }
+  return images.get(image_id)->pixels.get();
+}
+
+void TestGLES2Interface::UnmapImageCHROMIUM(
+    GLuint image_id) {
+  base::AutoLock lock(namespace_->lock);
+  DCHECK_GT(namespace_->images.count(image_id), 0u);
+}
+
+size_t TestGLES2Interface::NumTextures() const {
+  base::AutoLock lock(namespace_->lock);
+  return namespace_->textures.Size();
+}
+
+GLuint TestGLES2Interface::TextureAt(int i) const {
+  base::AutoLock lock(namespace_->lock);
+  return namespace_->textures.IdAt(i);
+}
+
+GLuint TestGLES2Interface::NextTextureId() {
+  base::AutoLock lock(namespace_->lock);
+  GLuint texture_id = namespace_->next_texture_id++;
+  DCHECK(texture_id < (1 << 16));
+  texture_id |= context_id_ << 16;
+  return texture_id;
+}
+
+void TestGLES2Interface::RetireTextureId(GLuint id) {
+  base::AutoLock lock(namespace_->lock);
+  uint8 context_id = id >> 16;
+  uint8 texture_id = id & 0xffff;
+  DCHECK(texture_id);
+  DCHECK_LT(texture_id, namespace_->next_texture_id);
+  DCHECK_EQ(context_id, context_id_);
+}
+
+GLuint TestGLES2Interface::NextBufferId() {
+  base::AutoLock lock(namespace_->lock);
+  GLuint buffer_id = namespace_->next_buffer_id++;
+  DCHECK(buffer_id < (1 << 16));
+  buffer_id |= context_id_ << 16;
+  return buffer_id;
+}
+
+void TestGLES2Interface::RetireBufferId(GLuint id) {
+  base::AutoLock lock(namespace_->lock);
+  uint8 context_id = id >> 16;
+  uint8 buffer_id = id & 0xffff;
+  DCHECK(buffer_id);
+  DCHECK_LT(buffer_id, namespace_->next_buffer_id);
+  DCHECK_EQ(context_id, context_id_);
+}
+
+GLuint TestGLES2Interface::NextImageId() {
+  base::AutoLock lock(namespace_->lock);
+  GLuint image_id = namespace_->next_image_id++;
+  DCHECK(image_id < (1 << 16));
+  image_id |= context_id_ << 16;
+  return image_id;
+}
+
+void TestGLES2Interface::RetireImageId(GLuint id) {
+  base::AutoLock lock(namespace_->lock);
+  uint8 context_id = id >> 16;
+  uint8 image_id = id & 0xffff;
+  DCHECK(image_id);
+  DCHECK_LT(image_id, namespace_->next_image_id);
+  DCHECK_EQ(context_id, context_id_);
+}
+
+size_t TestGLES2Interface::GetTransferBufferMemoryUsedBytes() const {
+  size_t total_bytes = 0;
+  base::ScopedPtrHashMap<uint8, Buffer>& buffers = namespace_->buffers;
+  base::ScopedPtrHashMap<uint8, Buffer>::iterator it = buffers.begin();
+  for (; it != buffers.end(); ++it) {
+    Buffer* buffer = it->second;
+    if (buffer->target == GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM)
+      total_bytes += buffer->size;
+  }
+  return total_bytes;
+}
+
+void TestGLES2Interface::SetMaxTransferBufferUsageBytes(
+    size_t max_transfer_buffer_usage_bytes) {
+  test_capabilities_.max_transfer_buffer_usage_bytes =
+      max_transfer_buffer_usage_bytes;
+}
+
+TestGLES2Interface::TextureTargets::TextureTargets() {
+  // Initialize default bindings.
+  bound_textures_[GL_TEXTURE_2D] = 0;
+  bound_textures_[GL_TEXTURE_EXTERNAL_OES] = 0;
+  bound_textures_[GL_TEXTURE_RECTANGLE_ARB] = 0;
+}
+
+TestGLES2Interface::TextureTargets::~TextureTargets() {}
+
+void TestGLES2Interface::TextureTargets::BindTexture(
+    GLenum target,
+    GLuint id) {
+  // Make sure this is a supported target by seeing if it was bound to before.
+  DCHECK(bound_textures_.find(target) != bound_textures_.end());
+  bound_textures_[target] = id;
+}
+
+void TestGLES2Interface::TextureTargets::UnbindTexture(
+    GLuint id) {
+  // Bind zero to any targets that the id is bound to.
+  for (TargetTextureMap::iterator it = bound_textures_.begin();
+       it != bound_textures_.end();
+       it++) {
+    if (it->second == id)
+      it->second = 0;
+  }
+}
+
+GLuint TestGLES2Interface::TextureTargets::BoundTexture(
+    GLenum target) {
+  DCHECK(bound_textures_.find(target) != bound_textures_.end());
+  return bound_textures_[target];
+}
+
+TestGLES2Interface::Buffer::Buffer() : target(0), size(0) {}
+
+TestGLES2Interface::Buffer::~Buffer() {}
+
+TestGLES2Interface::Image::Image() {}
+
+TestGLES2Interface::Image::~Image() {}
+
+}  // namespace cc