HiDPI: Scale viewport for pepper flash fullscreen

content/renderer/render_widget_fullscreen_pepper.cc

 // 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/renderer/render_widget_fullscreen_pepper.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/view_messages.h"
@@ skipping 237 matching lines @@
   if (buffer)
     context->deleteBuffer(buffer);
   delete context;
 }
 
 }  // anonymous namespace
 
 // static
 RenderWidgetFullscreenPepper* RenderWidgetFullscreenPepper::Create(
     int32 opener_id, webkit::ppapi::PluginInstance* plugin,
-    const GURL& active_url) {
+    const GURL& active_url,
+    const WebKit::WebScreenInfo& screen_info) {
   DCHECK_NE(MSG_ROUTING_NONE, opener_id);
   scoped_refptr<RenderWidgetFullscreenPepper> widget(
-      new RenderWidgetFullscreenPepper(plugin, active_url));
+      new RenderWidgetFullscreenPepper(plugin, active_url, screen_info));
   widget->Init(opener_id);
   return widget.release();
 }
 
 RenderWidgetFullscreenPepper::RenderWidgetFullscreenPepper(
     webkit::ppapi::PluginInstance* plugin,
-    const GURL& active_url)
-    : RenderWidgetFullscreen(),
+    const GURL& active_url,
+    const WebKit::WebScreenInfo& screen_info)
+    : RenderWidgetFullscreen(screen_info),
       active_url_(active_url),
       plugin_(plugin),
       context_(NULL),
       buffer_(0),
       program_(0),
       weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       mouse_lock_dispatcher_(new FullscreenMouseLockDispatcher(
           ALLOW_THIS_IN_INITIALIZER_LIST(this))) {
 }
 
@@ skipping 126 matching lines @@
       plugin_->GetBitmapForOptimizedPluginPaint(paint_bounds, dib,
                                                 location, clip))
     return plugin_;
   return NULL;
 }
 
 void RenderWidgetFullscreenPepper::OnResize(const gfx::Size& size,
                                             const gfx::Rect& resizer_rect,
                                             bool is_fullscreen) {
   if (context_) {
-    context_->reshape(size.width(), size.height());
-    context_->viewport(0, 0, size.width(), size.height());
+    gfx::Size pixel_size = size.Scale(deviceScaleFactor());
+    context_->reshape(pixel_size.width(), pixel_size.height());
+    context_->viewport(0, 0, pixel_size.width(), pixel_size.height());
   }
   RenderWidget::OnResize(size, resizer_rect, is_fullscreen);
 }
 
 WebWidget* RenderWidgetFullscreenPepper::CreateWebWidget() {
   return new PepperWidget(this);
 }
 
 bool RenderWidgetFullscreenPepper::SupportsAsynchronousSwapBuffers() {
   return context_ != NULL;
@@ skipping 66 matching lines @@
 
 const float kTexCoords[] = {
     0.f, 0.f,
     0.f, 2.f,
     2.f, 0.f,
 };
 
 }  // anonymous namespace
 
 bool RenderWidgetFullscreenPepper::InitContext() {
-  context_->reshape(size().width(), size().height());
-  context_->viewport(0, 0, size().width(), size().height());
+  gfx::Size pixel_size = size().Scale(deviceScaleFactor());
+  context_->reshape(pixel_size.width(), pixel_size.height());
+  context_->viewport(0, 0, pixel_size.width(), pixel_size.height());
 
   program_ = context_->createProgram();
 
   GLuint vertex_shader =
       CreateShaderFromSource(context_, GL_VERTEX_SHADER, kVertexShader);
   if (!vertex_shader)
     return false;
   context_->attachShader(program_, vertex_shader);
   context_->deleteShader(vertex_shader);
 
@@ skipping 55 matching lines @@
 
 WebGraphicsContext3DCommandBufferImpl*
 RenderWidgetFullscreenPepper::GetParentContextForPlatformContext3D() {
   if (!context_) {
     CreateContext();
   }
   if (!context_)
     return NULL;
   return context_;
 }