Move GLSurface creation from //ui/gl to //ui/gl/init.

ui/gl/gl_surface_osmesa_win.cc

+// Copyright 2016 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/gl_surface_osmesa_win.h"
+
+#include <memory>
+
+#include "base/command_line.h"
+#include "base/logging.h"
+#include "base/macros.h"
+#include "base/trace_event/trace_event.h"
+#include "base/win/windows_version.h"
+#include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_implementation.h"
+#include "ui/gl/gl_surface_egl.h"
+#include "ui/gl/gl_surface_wgl.h"
+#include "ui/gl/vsync_provider_win.h"
+
+// From ANGLE's egl/eglext.h.
+#if !defined(EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE)
+#define EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE \
+  reinterpret_cast<EGLNativeDisplayType>(-2)
+#endif
+
+namespace gl {
+
+GLSurfaceOSMesaWin::GLSurfaceOSMesaWin(gfx::AcceleratedWidget window)
+    : GLSurfaceOSMesa(SURFACE_OSMESA_RGBA, gfx::Size(1, 1)),
+      window_(window),
+      device_context_(NULL) {
+  DCHECK(window);
+}
+
+GLSurfaceOSMesaWin::~GLSurfaceOSMesaWin() {
+  Destroy();
+}
+
+bool GLSurfaceOSMesaWin::Initialize(GLSurface::Format format) {
+  if (!GLSurfaceOSMesa::Initialize(format))
+    return false;
+
+  device_context_ = GetDC(window_);
+  return true;
+}
+
+void GLSurfaceOSMesaWin::Destroy() {
+  if (window_ && device_context_)
+    ReleaseDC(window_, device_context_);
+
+  device_context_ = NULL;
+
+  GLSurfaceOSMesa::Destroy();
+}
+
+bool GLSurfaceOSMesaWin::IsOffscreen() {
+  return false;
+}
+
+gfx::SwapResult GLSurfaceOSMesaWin::SwapBuffers() {
+  DCHECK(device_context_);
+
+  gfx::Size size = GetSize();
+
+  // Note: negating the height below causes GDI to treat the bitmap data as row
+  // 0 being at the top.
+  BITMAPV4HEADER info = {sizeof(BITMAPV4HEADER)};
+  info.bV4Width = size.width();
+  info.bV4Height = -size.height();
+  info.bV4Planes = 1;
+  info.bV4BitCount = 32;
+  info.bV4V4Compression = BI_BITFIELDS;
+  info.bV4RedMask = 0x000000FF;
+  info.bV4GreenMask = 0x0000FF00;
+  info.bV4BlueMask = 0x00FF0000;
+  info.bV4AlphaMask = 0xFF000000;
+
+  // Copy the back buffer to the window's device context. Do not check whether
+  // StretchDIBits succeeds or not. It will fail if the window has been
+  // destroyed but it is preferable to allow rendering to silently fail if the
+  // window is destroyed. This is because the primary application of this
+  // class of GLContext is for testing and we do not want every GL related ui /
+  // browser test to become flaky if there is a race condition between GL
+  // context destruction and window destruction.
+  StretchDIBits(device_context_, 0, 0, size.width(), size.height(), 0, 0,
+                size.width(), size.height(), GetHandle(),
+                reinterpret_cast<BITMAPINFO*>(&info), DIB_RGB_COLORS, SRCCOPY);
+
+  return gfx::SwapResult::SWAP_ACK;
+}
+
+bool GLSurfaceOSMesaWin::SupportsPostSubBuffer() {
+  return true;
+}
+
+gfx::SwapResult GLSurfaceOSMesaWin::PostSubBuffer(int x,
+                                                  int y,
+                                                  int width,
+                                                  int height) {
+  DCHECK(device_context_);
+
+  gfx::Size size = GetSize();
+
+  // Note: negating the height below causes GDI to treat the bitmap data as row
+  // 0 being at the top.
+  BITMAPV4HEADER info = {sizeof(BITMAPV4HEADER)};
+  info.bV4Width = size.width();
+  info.bV4Height = -size.height();
+  info.bV4Planes = 1;
+  info.bV4BitCount = 32;
+  info.bV4V4Compression = BI_BITFIELDS;
+  info.bV4RedMask = 0x000000FF;
+  info.bV4GreenMask = 0x0000FF00;
+  info.bV4BlueMask = 0x00FF0000;
+  info.bV4AlphaMask = 0xFF000000;
+
+  // Copy the back buffer to the window's device context. Do not check whether
+  // StretchDIBits succeeds or not. It will fail if the window has been
+  // destroyed but it is preferable to allow rendering to silently fail if the
+  // window is destroyed. This is because the primary application of this
+  // class of GLContext is for testing and we do not want every GL related ui /
+  // browser test to become flaky if there is a race condition between GL
+  // context destruction and window destruction.
+  StretchDIBits(device_context_, x, size.height() - y - height, width, height,
+                x, y, width, height, GetHandle(),
+                reinterpret_cast<BITMAPINFO*>(&info), DIB_RGB_COLORS, SRCCOPY);
+
+  return gfx::SwapResult::SWAP_ACK;
+}
+
+}  // namespace gl