aw: Remove legacy rendering path

android_webview/browser/hardware_renderer_legacy.cc

-// Copyright 2014 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 "android_webview/browser/hardware_renderer_legacy.h"
-
-#include "android_webview/browser/aw_gl_surface.h"
-#include "android_webview/browser/shared_renderer_state.h"
-#include "android_webview/public/browser/draw_gl.h"
-#include "base/debug/trace_event.h"
-#include "base/strings/string_number_conversions.h"
-#include "cc/output/compositor_frame.h"
-#include "content/public/browser/android/synchronous_compositor.h"
-#include "content/public/browser/browser_thread.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/geometry/rect_f.h"
-#include "ui/gfx/transform.h"
-#include "ui/gl/gl_bindings.h"
-
-namespace android_webview {
-
-HardwareRendererLegacy::HardwareRendererLegacy(SharedRendererState* state)
-    : shared_renderer_state_(state), last_egl_context_(eglGetCurrentContext()) {
-  DCHECK(last_egl_context_);
-
-  gl_surface_ = new AwGLSurface;
-  bool success =
-      shared_renderer_state_->GetCompositor()->InitializeHwDraw(gl_surface_);
-  DCHECK(success);
-}
-
-HardwareRendererLegacy::~HardwareRendererLegacy() {
-  draw_gl_input_ = shared_renderer_state_->PassDrawGLInput();
-  shared_renderer_state_->GetCompositor()->ReleaseHwDraw();
-  gl_surface_ = NULL;
-}
-
-bool HardwareRendererLegacy::DrawGL(bool stencil_enabled,
-                                    int framebuffer_binding_ext,
-                                    AwDrawGLInfo* draw_info,
-                                    DrawGLResult* result) {
-  TRACE_EVENT0("android_webview", "HardwareRendererLegacy::DrawGL");
-
-  // We need to watch if the current Android context has changed and enforce
-  // a clean-up in the compositor.
-  EGLContext current_context = eglGetCurrentContext();
-  if (!current_context) {
-    DLOG(ERROR) << "DrawGL called without EGLContext";
-    return false;
-  }
-
-  // TODO(boliu): Handle context loss.
-  if (last_egl_context_ != current_context)
-    DLOG(WARNING) << "EGLContextChanged";
-
-  // Should only need to access SharedRendererState in kModeDraw and kModeSync.
-  scoped_ptr<DrawGLInput> input = shared_renderer_state_->PassDrawGLInput();
-  if (input.get())
-    draw_gl_input_ = input.Pass();
-  SetCompositorMemoryPolicy();
-
-  gl_surface_->SetBackingFrameBufferObject(framebuffer_binding_ext);
-
-  gfx::Transform transform;
-  transform.matrix().setColMajorf(draw_info->transform);
-  transform.Translate(draw_gl_input_->scroll_offset.x(),
-                      draw_gl_input_->scroll_offset.y());
-  gfx::Rect clip_rect(draw_info->clip_left,
-                      draw_info->clip_top,
-                      draw_info->clip_right - draw_info->clip_left,
-                      draw_info->clip_bottom - draw_info->clip_top);
-
-  gfx::Rect viewport(draw_info->width, draw_info->height);
-  if (!draw_info->is_layer) {
-    gfx::RectF view_rect(draw_gl_input_->width, draw_gl_input_->height);
-    transform.TransformRect(&view_rect);
-    viewport.Intersect(gfx::ToEnclosingRect(view_rect));
-  }
-
-  scoped_ptr<cc::CompositorFrame> frame =
-      shared_renderer_state_->GetCompositor()->DemandDrawHw(
-          gfx::Size(draw_info->width, draw_info->height),
-          transform,
-          viewport,
-          clip_rect,
-          framebuffer_binding_ext);
-  gl_surface_->ResetBackingFrameBufferObject();
-
-  if (frame.get()) {
-    result->clip_contains_visible_rect =
-        clip_rect.Contains(draw_gl_input_->global_visible_rect);
-  }
-  return !!frame.get();
-}
-
-void HardwareRendererLegacy::SetCompositorMemoryPolicy() {
-  if (shared_renderer_state_->IsMemoryPolicyDirty()) {
-    content::SynchronousCompositorMemoryPolicy policy =
-        shared_renderer_state_->GetMemoryPolicy();
-    // Memory policy is set by BrowserViewRenderer on UI thread.
-    shared_renderer_state_->GetCompositor()->SetMemoryPolicy(policy);
-    shared_renderer_state_->SetMemoryPolicyDirty(false);
-  }
-}
-
-}  // namespace android_webview