MacViews: Move content::AcceleratedWidget to new component, ui/accelerated_widget_mac

content/browser/compositor/io_surface_texture_mac.mm

Index: content/browser/compositor/io_surface_texture_mac.mm
diff --git a/content/browser/compositor/io_surface_texture_mac.mm b/content/browser/compositor/io_surface_texture_mac.mm
deleted file mode 100644
index dea6b2876828f0d477ab96ebc989fa0985a5341b..0000000000000000000000000000000000000000
--- a/content/browser/compositor/io_surface_texture_mac.mm
+++ /dev/null
@@ -1,297 +0,0 @@
-// Copyright (c) 2012 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 "content/browser/compositor/io_surface_texture_mac.h"
-
-#include <OpenGL/CGLIOSurface.h>
-#include <OpenGL/CGLRenderers.h>
-#include <OpenGL/OpenGL.h>
-#include <OpenGL/gl.h>
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/callback_helpers.h"
-#include "base/debug/trace_event.h"
-#include "base/logging.h"
-#include "base/mac/bind_objc_block.h"
-#include "base/mac/mac_util.h"
-#include "base/message_loop/message_loop.h"
-#include "base/threading/platform_thread.h"
-#include "content/browser/compositor/io_surface_context_mac.h"
-#include "content/browser/gpu/gpu_data_manager_impl.h"
-#include "content/browser/renderer_host/render_widget_host_impl.h"
-#include "content/browser/renderer_host/render_widget_host_view_mac.h"
-#include "content/common/content_constants_internal.h"
-#include "gpu/config/gpu_driver_bug_workaround_type.h"
-#include "media/base/video_util.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
-#include "ui/gfx/size_conversions.h"
-#include "ui/gl/gl_context.h"
-
-namespace content {
-
-// static
-scoped_refptr<IOSurfaceTexture> IOSurfaceTexture::Create() {
-  scoped_refptr<IOSurfaceContext> offscreen_context =
-      IOSurfaceContext::Get(
-          IOSurfaceContext::kOffscreenContext);
-  if (!offscreen_context.get()) {
-    LOG(ERROR) << "Failed to create context for offscreen operations";
-    return NULL;
-  }
-
-  return new IOSurfaceTexture(offscreen_context);
-}
-
-IOSurfaceTexture::IOSurfaceTexture(
-    const scoped_refptr<IOSurfaceContext>& offscreen_context)
-    : offscreen_context_(offscreen_context),
-      texture_(0),
-      gl_error_(GL_NO_ERROR),
-      eviction_queue_iterator_(eviction_queue_.Get().end()),
-      eviction_has_been_drawn_since_updated_(false) {
-  CHECK(offscreen_context_.get());
-}
-
-IOSurfaceTexture::~IOSurfaceTexture() {
-  ReleaseIOSurfaceAndTexture();
-  offscreen_context_ = NULL;
-  DCHECK(eviction_queue_iterator_ == eviction_queue_.Get().end());
-}
-
-bool IOSurfaceTexture::DrawIOSurface() {
-  TRACE_EVENT0("browser", "IOSurfaceTexture::DrawIOSurface");
-
-  // If we have release the IOSurface, clear the screen to light grey and
-  // early-out.
-  if (!io_surface_) {
-    glClearColor(0.9, 0.9, 0.9, 1);
-    glClear(GL_COLOR_BUFFER_BIT);
-    return false;
-  }
-
-  // The viewport is the size of the CALayer, which should always match the
-  // IOSurface pixel size.
-  GLint viewport[4];
-  glGetIntegerv(GL_VIEWPORT, viewport);
-  gfx::Rect viewport_rect(viewport[0], viewport[1], viewport[2], viewport[3]);
-  DCHECK_EQ(pixel_size_.ToString(), viewport_rect.size().ToString());
-
-  // Set the projection matrix to match 1 unit to 1 pixel.
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  glOrtho(0, viewport_rect.width(), 0, viewport_rect.height(), -1, 1);
-  glMatrixMode(GL_MODELVIEW);
-  glLoadIdentity();
-
-  // Draw a quad the size of the IOSurface. This should cover the full viewport.
-  glColor4f(1, 1, 1, 1);
-  glEnable(GL_TEXTURE_RECTANGLE_ARB);
-  glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_);
-  glBegin(GL_QUADS);
-  glTexCoord2f(0, 0);
-  glVertex2f(0, 0);
-  glTexCoord2f(pixel_size_.width(), 0);
-  glVertex2f(pixel_size_.width(), 0);
-  glTexCoord2f(pixel_size_.width(), pixel_size_.height());
-  glVertex2f(pixel_size_.width(), pixel_size_.height());
-  glTexCoord2f(0, pixel_size_.height());
-  glVertex2f(0, pixel_size_.height());
-  glEnd();
-  glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
-  glDisable(GL_TEXTURE_RECTANGLE_ARB);
-
-  // Workaround for issue 158469. Issue a dummy draw call with texture_ not
-  // bound to a texture, in order to shake all references to the IOSurface out
-  // of the driver.
-  glBegin(GL_TRIANGLES);
-  glEnd();
-
-  bool workaround_needed =
-      GpuDataManagerImpl::GetInstance()->IsDriverBugWorkaroundActive(
-          gpu::FORCE_GL_FINISH_AFTER_COMPOSITING);
-  if (workaround_needed) {
-    TRACE_EVENT0("gpu", "glFinish");
-    glFinish();
-  }
-
-  // Check if any of the drawing calls result in an error.
-  GetAndSaveGLError();
-  bool result = true;
-  if (gl_error_ != GL_NO_ERROR) {
-    LOG(ERROR) << "GL error in DrawIOSurface: " << gl_error_;
-    result = false;
-    // If there was an error, clear the screen to a light grey to avoid
-    // rendering artifacts.
-    glClearColor(0.8, 0.8, 0.8, 1.0);
-    glClear(GL_COLOR_BUFFER_BIT);
-  }
-
-  eviction_has_been_drawn_since_updated_ = true;
-  return result;
-}
-
-bool IOSurfaceTexture::SetIOSurface(
-    IOSurfaceID io_surface_id,
-    const gfx::Size& pixel_size) {
-  TRACE_EVENT0("browser", "IOSurfaceTexture::MapIOSurfaceToTexture");
-
-  // Destroy the old IOSurface and texture if it is no longer needed.
-  bool needs_new_iosurface =
-      !io_surface_ || io_surface_id != IOSurfaceGetID(io_surface_);
-  if (needs_new_iosurface)
-    ReleaseIOSurfaceAndTexture();
-
-  // Note that because IOSurface sizes are rounded, the same IOSurface may have
-  // two different sizes associated with it, so update the sizes before the
-  // early-out.
-  pixel_size_ = pixel_size;
-
-  // Early-out if the IOSurface has not changed.
-  if (!needs_new_iosurface)
-    return true;
-
-  // If we early-out at any point from now on, it's because of an error, and we
-  // should destroy the texture and release the IOSurface.
-  base::ScopedClosureRunner error_runner(base::BindBlock(^{
-      ReleaseIOSurfaceAndTexture();
-  }));
-
-  // Open the IOSurface handle.
-  io_surface_.reset(IOSurfaceLookup(io_surface_id));
-  if (!io_surface_)
-    return false;
-
-  // Actual IOSurface size is rounded up to reduce reallocations during window
-  // resize. Get the actual size to properly map the texture.
-  gfx::Size rounded_size(IOSurfaceGetWidth(io_surface_),
-                         IOSurfaceGetHeight(io_surface_));
-
-  // Create the GL texture and set it to be backed by the IOSurface.
-  CGLError cgl_error = kCGLNoError;
-  {
-    gfx::ScopedCGLSetCurrentContext scoped_set_current_context(
-        offscreen_context_->cgl_context());
-    glGenTextures(1, &texture_);
-    glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_);
-    glTexParameterf(
-        GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameterf(
-        GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    cgl_error = CGLTexImageIOSurface2D(
-        offscreen_context_->cgl_context(),
-        GL_TEXTURE_RECTANGLE_ARB,
-        GL_RGBA,
-        rounded_size.width(),
-        rounded_size.height(),
-        GL_BGRA,
-        GL_UNSIGNED_INT_8_8_8_8_REV,
-        io_surface_.get(),
-        0 /* plane */);
-    glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
-    GetAndSaveGLError();
-  }
-
-  // Return failure if an error was encountered by CGL or GL.
-  if (cgl_error != kCGLNoError) {
-    LOG(ERROR) << "CGLTexImageIOSurface2D failed with CGL error: " << cgl_error;
-    return false;
-  }
-  if (gl_error_ != GL_NO_ERROR) {
-    LOG(ERROR) << "Hit GL error in SetIOSurface: " << gl_error_;
-    return false;
-  }
-
-  ignore_result(error_runner.Release());
-  return true;
-}
-
-void IOSurfaceTexture::ReleaseIOSurfaceAndTexture() {
-  gfx::ScopedCGLSetCurrentContext scoped_set_current_context(
-      offscreen_context_->cgl_context());
-
-  if (texture_) {
-    glDeleteTextures(1, &texture_);
-    texture_ = 0;
-  }
-  pixel_size_ = gfx::Size();
-  io_surface_.reset();
-
-  EvictionMarkEvicted();
-}
-
-bool IOSurfaceTexture::HasBeenPoisoned() const {
-  return offscreen_context_->HasBeenPoisoned();
-}
-
-GLenum IOSurfaceTexture::GetAndSaveGLError() {
-  GLenum gl_error = glGetError();
-  if (gl_error_ == GL_NO_ERROR)
-    gl_error_ = gl_error;
-  return gl_error;
-}
-
-void IOSurfaceTexture::EvictionMarkUpdated() {
-  EvictionMarkEvicted();
-  eviction_queue_.Get().push_back(this);
-  eviction_queue_iterator_ = --eviction_queue_.Get().end();
-  eviction_has_been_drawn_since_updated_ = false;
-  EvictionScheduleDoEvict();
-}
-
-void IOSurfaceTexture::EvictionMarkEvicted() {
-  if (eviction_queue_iterator_ == eviction_queue_.Get().end())
-    return;
-  eviction_queue_.Get().erase(eviction_queue_iterator_);
-  eviction_queue_iterator_ = eviction_queue_.Get().end();
-  eviction_has_been_drawn_since_updated_ = false;
-}
-
-// static
-void IOSurfaceTexture::EvictionScheduleDoEvict() {
-  if (eviction_scheduled_)
-    return;
-  if (eviction_queue_.Get().size() <= kMaximumUnevictedSurfaces)
-    return;
-
-  eviction_scheduled_ = true;
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&IOSurfaceTexture::EvictionDoEvict));
-}
-
-// static
-void IOSurfaceTexture::EvictionDoEvict() {
-  eviction_scheduled_ = false;
-  // Walk the list of allocated surfaces from least recently used to most
-  // recently used.
-  for (EvictionQueue::iterator it = eviction_queue_.Get().begin();
-       it != eviction_queue_.Get().end();) {
-    IOSurfaceTexture* surface = *it;
-    ++it;
-
-    // If the number of IOSurfaces allocated is less than the threshold,
-    // stop walking the list of surfaces.
-    if (eviction_queue_.Get().size() <= kMaximumUnevictedSurfaces)
-      break;
-
-    // Don't evict anything that has not yet been drawn.
-    if (!surface->eviction_has_been_drawn_since_updated_)
-      continue;
-
-    // Evict the surface.
-    surface->ReleaseIOSurfaceAndTexture();
-  }
-}
-
-// static
-base::LazyInstance<IOSurfaceTexture::EvictionQueue>
-    IOSurfaceTexture::eviction_queue_;
-
-// static
-bool IOSurfaceTexture::eviction_scheduled_ = false;
-
-}  // namespace content