Revert of Re-land: ui: Add GLImage unit test framework.

ui/gl/test/gl_image_test_support.cc

-// Copyright 2015 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 "ui/gl/test/gl_image_test_support.h"
-
-#include <vector>
-
-#include "third_party/skia/include/core/SkTypes.h"
-#include "ui/gl/gl_context.h"
-#include "ui/gl/gl_implementation.h"
-#include "ui/gl/gl_version_info.h"
-#include "ui/gl/test/gl_surface_test_support.h"
-
-#if defined(USE_OZONE)
-#include "base/message_loop/message_loop.h"
-#endif
-
-namespace gfx {
-
-// static
-void GLImageTestSupport::InitializeGL() {
-#if defined(USE_OZONE)
-  // On Ozone, the backend initializes the event system using a UI thread.
-  base::MessageLoopForUI main_loop;
-#endif
-
-  std::vector<GLImplementation> allowed_impls;
-  GetAllowedGLImplementations(&allowed_impls);
-  DCHECK(!allowed_impls.empty());
-
-  GLImplementation impl = allowed_impls[0];
-  GLSurfaceTestSupport::InitializeOneOffImplementation(impl, true);
-}
-
-// static
-void GLImageTestSupport::CleanupGL() {
-  ClearGLBindings();
-}
-
-// static
-GLenum GLImageTestSupport::GetPreferredInternalFormat() {
-  bool has_texture_format_bgra8888 =
-      GLContext::GetCurrent()->HasExtension(
-          "GL_APPLE_texture_format_BGRA8888") ||
-      GLContext::GetCurrent()->HasExtension("GL_EXT_texture_format_BGRA8888") ||
-      !GLContext::GetCurrent()->GetVersionInfo()->is_es;
-  return (!SK_B32_SHIFT && has_texture_format_bgra8888) ? GL_BGRA_EXT : GL_RGBA;
-}
-
-// static
-BufferFormat GLImageTestSupport::GetPreferredBufferFormat() {
-  return GetPreferredInternalFormat() == GL_BGRA_EXT ? BufferFormat::BGRA_8888
-                                                     : BufferFormat::RGBA_8888;
-}
-
-// static
-void GLImageTestSupport::SetBufferDataToColor(int width,
-                                              int height,
-                                              int stride,
-                                              BufferFormat format,
-                                              const uint8_t color[4],
-                                              uint8_t* data) {
-  switch (format) {
-    case BufferFormat::RGBA_8888:
-      for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-          data[y * stride + x * 4 + 0] = color[0];
-          data[y * stride + x * 4 + 1] = color[1];
-          data[y * stride + x * 4 + 2] = color[2];
-          data[y * stride + x * 4 + 3] = color[3];
-        }
-      }
-      return;
-    case BufferFormat::BGRA_8888:
-      for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-          data[y * stride + x * 4 + 0] = color[2];
-          data[y * stride + x * 4 + 1] = color[1];
-          data[y * stride + x * 4 + 2] = color[0];
-          data[y * stride + x * 4 + 3] = color[3];
-        }
-      }
-      return;
-    case BufferFormat::ATC:
-    case BufferFormat::ATCIA:
-    case BufferFormat::DXT1:
-    case BufferFormat::DXT5:
-    case BufferFormat::ETC1:
-    case BufferFormat::R_8:
-    case BufferFormat::RGBA_4444:
-    case BufferFormat::BGRX_8888:
-    case BufferFormat::UYVY_422:
-    case BufferFormat::YUV_420_BIPLANAR:
-    case BufferFormat::YUV_420:
-      NOTREACHED();
-      return;
-  }
-  NOTREACHED();
-}
-
-}  // namespace gfx