Delete CC.

cc/output/direct_renderer.cc

Index: cc/output/direct_renderer.cc
diff --git a/cc/output/direct_renderer.cc b/cc/output/direct_renderer.cc
deleted file mode 100644
index df2b73a60531fdceea64f8a25e7ff8f0bf3a647d..0000000000000000000000000000000000000000
--- a/cc/output/direct_renderer.cc
+++ /dev/null
@@ -1,529 +0,0 @@
-// Copyright 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 "cc/output/direct_renderer.h"
-
-#include <utility>
-#include <vector>
-
-#include "base/containers/hash_tables.h"
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/metrics/histogram.h"
-#include "base/trace_event/trace_event.h"
-#include "cc/base/math_util.h"
-#include "cc/output/bsp_tree.h"
-#include "cc/output/bsp_walk_action.h"
-#include "cc/output/copy_output_request.h"
-#include "cc/quads/draw_quad.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/transform.h"
-
-static gfx::Transform OrthoProjectionMatrix(float left,
-                                            float right,
-                                            float bottom,
-                                            float top) {
-  // Use the standard formula to map the clipping frustum to the cube from
-  // [-1, -1, -1] to [1, 1, 1].
-  float delta_x = right - left;
-  float delta_y = top - bottom;
-  gfx::Transform proj;
-  if (!delta_x || !delta_y)
-    return proj;
-  proj.matrix().set(0, 0, 2.0f / delta_x);
-  proj.matrix().set(0, 3, -(right + left) / delta_x);
-  proj.matrix().set(1, 1, 2.0f / delta_y);
-  proj.matrix().set(1, 3, -(top + bottom) / delta_y);
-
-  // Z component of vertices is always set to zero as we don't use the depth
-  // buffer while drawing.
-  proj.matrix().set(2, 2, 0);
-
-  return proj;
-}
-
-static gfx::Transform window_matrix(int x, int y, int width, int height) {
-  gfx::Transform canvas;
-
-  // Map to window position and scale up to pixel coordinates.
-  canvas.Translate3d(x, y, 0);
-  canvas.Scale3d(width, height, 0);
-
-  // Map from ([-1, -1] to [1, 1]) -> ([0, 0] to [1, 1])
-  canvas.Translate3d(0.5, 0.5, 0.5);
-  canvas.Scale3d(0.5, 0.5, 0.5);
-
-  return canvas;
-}
-
-namespace cc {
-
-DirectRenderer::DrawingFrame::DrawingFrame()
-    : root_render_pass(NULL), current_render_pass(NULL), current_texture(NULL) {
-}
-
-DirectRenderer::DrawingFrame::~DrawingFrame() {}
-
-//
-// static
-gfx::RectF DirectRenderer::QuadVertexRect() {
-  return gfx::RectF(-0.5f, -0.5f, 1.f, 1.f);
-}
-
-// static
-void DirectRenderer::QuadRectTransform(gfx::Transform* quad_rect_transform,
-                                       const gfx::Transform& quad_transform,
-                                       const gfx::RectF& quad_rect) {
-  *quad_rect_transform = quad_transform;
-  quad_rect_transform->Translate(0.5 * quad_rect.width() + quad_rect.x(),
-                                 0.5 * quad_rect.height() + quad_rect.y());
-  quad_rect_transform->Scale(quad_rect.width(), quad_rect.height());
-}
-
-void DirectRenderer::InitializeViewport(DrawingFrame* frame,
-                                        const gfx::Rect& draw_rect,
-                                        const gfx::Rect& viewport_rect,
-                                        const gfx::Size& surface_size) {
-  DCHECK_GE(viewport_rect.x(), 0);
-  DCHECK_GE(viewport_rect.y(), 0);
-  DCHECK_LE(viewport_rect.right(), surface_size.width());
-  DCHECK_LE(viewport_rect.bottom(), surface_size.height());
-  bool flip_y = FlippedFramebuffer(frame);
-  if (flip_y) {
-    frame->projection_matrix = OrthoProjectionMatrix(draw_rect.x(),
-                                                     draw_rect.right(),
-                                                     draw_rect.bottom(),
-                                                     draw_rect.y());
-  } else {
-    frame->projection_matrix = OrthoProjectionMatrix(draw_rect.x(),
-                                                     draw_rect.right(),
-                                                     draw_rect.y(),
-                                                     draw_rect.bottom());
-  }
-
-  gfx::Rect window_rect = viewport_rect;
-  if (flip_y)
-    window_rect.set_y(surface_size.height() - viewport_rect.bottom());
-  frame->window_matrix = window_matrix(window_rect.x(),
-                                       window_rect.y(),
-                                       window_rect.width(),
-                                       window_rect.height());
-  SetDrawViewport(window_rect);
-
-  current_draw_rect_ = draw_rect;
-  current_viewport_rect_ = viewport_rect;
-  current_surface_size_ = surface_size;
-}
-
-gfx::Rect DirectRenderer::MoveFromDrawToWindowSpace(
-    const DrawingFrame* frame,
-    const gfx::Rect& draw_rect) const {
-  gfx::Rect window_rect = draw_rect;
-  window_rect -= current_draw_rect_.OffsetFromOrigin();
-  window_rect += current_viewport_rect_.OffsetFromOrigin();
-  if (FlippedFramebuffer(frame))
-    window_rect.set_y(current_surface_size_.height() - window_rect.bottom());
-  return window_rect;
-}
-
-DirectRenderer::DirectRenderer(RendererClient* client,
-                               const RendererSettings* settings,
-                               OutputSurface* output_surface,
-                               ResourceProvider* resource_provider)
-    : Renderer(client, settings),
-      output_surface_(output_surface),
-      resource_provider_(resource_provider),
-      overlay_processor_(
-          new OverlayProcessor(output_surface, resource_provider)) {
-  overlay_processor_->Initialize();
-}
-
-DirectRenderer::~DirectRenderer() {}
-
-void DirectRenderer::SetEnlargePassTextureAmountForTesting(
-    const gfx::Vector2d& amount) {
-  enlarge_pass_texture_amount_ = amount;
-}
-
-void DirectRenderer::DecideRenderPassAllocationsForFrame(
-    const RenderPassList& render_passes_in_draw_order) {
-  if (!resource_provider_)
-    return;
-
-  base::hash_map<RenderPassId, gfx::Size> render_passes_in_frame;
-  for (size_t i = 0; i < render_passes_in_draw_order.size(); ++i)
-    render_passes_in_frame.insert(std::pair<RenderPassId, gfx::Size>(
-        render_passes_in_draw_order[i]->id,
-        RenderPassTextureSize(render_passes_in_draw_order[i])));
-
-  std::vector<RenderPassId> passes_to_delete;
-  base::ScopedPtrHashMap<RenderPassId, scoped_ptr<ScopedResource>>::const_iterator
-      pass_iter;
-  for (pass_iter = render_pass_textures_.begin();
-       pass_iter != render_pass_textures_.end();
-       ++pass_iter) {
-    base::hash_map<RenderPassId, gfx::Size>::const_iterator it =
-        render_passes_in_frame.find(pass_iter->first);
-    if (it == render_passes_in_frame.end()) {
-      passes_to_delete.push_back(pass_iter->first);
-      continue;
-    }
-
-    gfx::Size required_size = it->second;
-    ScopedResource* texture = pass_iter->second;
-    DCHECK(texture);
-
-    bool size_appropriate = texture->size().width() >= required_size.width() &&
-                            texture->size().height() >= required_size.height();
-    if (texture->id() && !size_appropriate)
-      texture->Free();
-  }
-
-  // Delete RenderPass textures from the previous frame that will not be used
-  // again.
-  for (size_t i = 0; i < passes_to_delete.size(); ++i)
-    render_pass_textures_.erase(passes_to_delete[i]);
-
-  for (size_t i = 0; i < render_passes_in_draw_order.size(); ++i) {
-    if (!render_pass_textures_.contains(render_passes_in_draw_order[i]->id)) {
-      scoped_ptr<ScopedResource> texture =
-          ScopedResource::Create(resource_provider_);
-      render_pass_textures_.set(render_passes_in_draw_order[i]->id,
-                              texture.Pass());
-    }
-  }
-}
-
-void DirectRenderer::DrawFrame(RenderPassList* render_passes_in_draw_order,
-                               float device_scale_factor,
-                               const gfx::Rect& device_viewport_rect,
-                               const gfx::Rect& device_clip_rect,
-                               bool disable_picture_quad_image_filtering) {
-  TRACE_EVENT0("cc", "DirectRenderer::DrawFrame");
-  UMA_HISTOGRAM_COUNTS("Renderer4.renderPassCount",
-                       render_passes_in_draw_order->size());
-
-  const RenderPass* root_render_pass = render_passes_in_draw_order->back();
-  DCHECK(root_render_pass);
-
-  DrawingFrame frame;
-  frame.render_passes_in_draw_order = render_passes_in_draw_order;
-  frame.root_render_pass = root_render_pass;
-  frame.root_damage_rect = Capabilities().using_partial_swap
-                               ? root_render_pass->damage_rect
-                               : root_render_pass->output_rect;
-  frame.root_damage_rect.Intersect(gfx::Rect(device_viewport_rect.size()));
-  frame.device_viewport_rect = device_viewport_rect;
-  frame.device_clip_rect = device_clip_rect;
-  frame.disable_picture_quad_image_filtering =
-      disable_picture_quad_image_filtering;
-
-  overlay_processor_->ProcessForOverlays(render_passes_in_draw_order,
-                                         &frame.overlay_list);
-
-  EnsureBackbuffer();
-
-  // Only reshape when we know we are going to draw. Otherwise, the reshape
-  // can leave the window at the wrong size if we never draw and the proper
-  // viewport size is never set.
-  output_surface_->Reshape(device_viewport_rect.size(), device_scale_factor);
-
-  BeginDrawingFrame(&frame);
-  for (size_t i = 0; i < render_passes_in_draw_order->size(); ++i) {
-    RenderPass* pass = render_passes_in_draw_order->at(i);
-    DrawRenderPass(&frame, pass);
-
-    for (ScopedPtrVector<CopyOutputRequest>::iterator it =
-             pass->copy_requests.begin();
-         it != pass->copy_requests.end();
-         ++it) {
-      if (it != pass->copy_requests.begin()) {
-        // Doing a readback is destructive of our state on Mac, so make sure
-        // we restore the state between readbacks. http://crbug.com/99393.
-        UseRenderPass(&frame, pass);
-      }
-      CopyCurrentRenderPassToBitmap(&frame, pass->copy_requests.take(it));
-    }
-  }
-  FinishDrawingFrame(&frame);
-
-  render_passes_in_draw_order->clear();
-}
-
-gfx::Rect DirectRenderer::ComputeScissorRectForRenderPass(
-    const DrawingFrame* frame) {
-  gfx::Rect render_pass_scissor = frame->current_render_pass->output_rect;
-
-  if (frame->root_damage_rect == frame->root_render_pass->output_rect ||
-      !frame->current_render_pass->copy_requests.empty())
-    return render_pass_scissor;
-
-  gfx::Transform inverse_transform(gfx::Transform::kSkipInitialization);
-  if (frame->current_render_pass->transform_to_root_target.GetInverse(
-          &inverse_transform)) {
-    // Only intersect inverse-projected damage if the transform is invertible.
-    gfx::Rect damage_rect_in_render_pass_space =
-        MathUtil::ProjectEnclosingClippedRect(inverse_transform,
-                                              frame->root_damage_rect);
-    render_pass_scissor.Intersect(damage_rect_in_render_pass_space);
-  }
-
-  return render_pass_scissor;
-}
-
-bool DirectRenderer::NeedDeviceClip(const DrawingFrame* frame) const {
-  if (frame->current_render_pass != frame->root_render_pass)
-    return false;
-
-  return !frame->device_clip_rect.Contains(frame->device_viewport_rect);
-}
-
-gfx::Rect DirectRenderer::DeviceClipRectInDrawSpace(
-    const DrawingFrame* frame) const {
-  gfx::Rect device_clip_rect = frame->device_clip_rect;
-  device_clip_rect -= current_viewport_rect_.OffsetFromOrigin();
-  device_clip_rect += current_draw_rect_.OffsetFromOrigin();
-  return device_clip_rect;
-}
-
-gfx::Rect DirectRenderer::DeviceViewportRectInDrawSpace(
-    const DrawingFrame* frame) const {
-  gfx::Rect device_viewport_rect = frame->device_viewport_rect;
-  device_viewport_rect -= current_viewport_rect_.OffsetFromOrigin();
-  device_viewport_rect += current_draw_rect_.OffsetFromOrigin();
-  return device_viewport_rect;
-}
-
-gfx::Rect DirectRenderer::OutputSurfaceRectInDrawSpace(
-    const DrawingFrame* frame) const {
-  if (frame->current_render_pass == frame->root_render_pass) {
-    gfx::Rect output_surface_rect(output_surface_->SurfaceSize());
-    output_surface_rect -= current_viewport_rect_.OffsetFromOrigin();
-    output_surface_rect += current_draw_rect_.OffsetFromOrigin();
-    return output_surface_rect;
-  } else {
-    return frame->current_render_pass->output_rect;
-  }
-}
-
-bool DirectRenderer::ShouldSkipQuad(const DrawQuad& quad,
-                                    const gfx::Rect& render_pass_scissor) {
-  if (render_pass_scissor.IsEmpty())
-    return true;
-
-  if (quad.isClipped()) {
-    gfx::Rect r = quad.clipRect();
-    r.Intersect(render_pass_scissor);
-    return r.IsEmpty();
-  }
-
-  return false;
-}
-
-void DirectRenderer::SetScissorStateForQuad(
-    const DrawingFrame* frame,
-    const DrawQuad& quad,
-    const gfx::Rect& render_pass_scissor,
-    bool use_render_pass_scissor) {
-  if (use_render_pass_scissor) {
-    gfx::Rect quad_scissor_rect = render_pass_scissor;
-    if (quad.isClipped())
-      quad_scissor_rect.Intersect(quad.clipRect());
-    SetScissorTestRectInDrawSpace(frame, quad_scissor_rect);
-    return;
-  } else if (quad.isClipped()) {
-    SetScissorTestRectInDrawSpace(frame, quad.clipRect());
-    return;
-  }
-
-  EnsureScissorTestDisabled();
-}
-
-void DirectRenderer::SetScissorTestRectInDrawSpace(
-    const DrawingFrame* frame,
-    const gfx::Rect& draw_space_rect) {
-  gfx::Rect window_space_rect =
-      MoveFromDrawToWindowSpace(frame, draw_space_rect);
-  SetScissorTestRect(window_space_rect);
-}
-
-void DirectRenderer::FinishDrawingQuadList() {}
-
-void DirectRenderer::DoDrawPolygon(const DrawPolygon& poly,
-                                   DrawingFrame* frame,
-                                   const gfx::Rect& render_pass_scissor,
-                                   bool use_render_pass_scissor) {
-  SetScissorStateForQuad(frame, *poly.original_ref(), render_pass_scissor,
-                         use_render_pass_scissor);
-
-  // If the poly has not been split, then it is just a normal DrawQuad,
-  // and we should save any extra processing that would have to be done.
-  if (!poly.is_split()) {
-    DoDrawQuad(frame, poly.original_ref(), NULL);
-    return;
-  }
-
-  std::vector<gfx::QuadF> quads;
-  poly.ToQuads2D(&quads);
-  for (size_t i = 0; i < quads.size(); ++i) {
-    DoDrawQuad(frame, poly.original_ref(), &quads[i]);
-  }
-}
-
-void DirectRenderer::FlushPolygons(ScopedPtrDeque<DrawPolygon>* poly_list,
-                                   DrawingFrame* frame,
-                                   const gfx::Rect& render_pass_scissor,
-                                   bool use_render_pass_scissor) {
-  if (poly_list->empty()) {
-    return;
-  }
-
-  BspTree bsp_tree(poly_list);
-  BspWalkActionDrawPolygon action_handler(this, frame, render_pass_scissor,
-                                          use_render_pass_scissor);
-  bsp_tree.TraverseWithActionHandler(&action_handler);
-  DCHECK(poly_list->empty());
-}
-
-void DirectRenderer::DrawRenderPass(DrawingFrame* frame,
-                                    const RenderPass* render_pass) {
-  TRACE_EVENT0("cc", "DirectRenderer::DrawRenderPass");
-  if (!UseRenderPass(frame, render_pass))
-    return;
-
-  const gfx::Rect surface_rect_in_draw_space =
-      OutputSurfaceRectInDrawSpace(frame);
-  gfx::Rect render_pass_scissor_in_draw_space = surface_rect_in_draw_space;
-
-  if (frame->current_render_pass == frame->root_render_pass) {
-    render_pass_scissor_in_draw_space.Intersect(
-        DeviceViewportRectInDrawSpace(frame));
-  }
-
-  if (Capabilities().using_partial_swap) {
-    render_pass_scissor_in_draw_space.Intersect(
-        ComputeScissorRectForRenderPass(frame));
-  }
-
-  if (NeedDeviceClip(frame)) {
-    render_pass_scissor_in_draw_space.Intersect(
-        DeviceClipRectInDrawSpace(frame));
-  }
-
-  bool render_pass_is_clipped =
-      !render_pass_scissor_in_draw_space.Contains(surface_rect_in_draw_space);
-  bool is_root_render_pass =
-      frame->current_render_pass == frame->root_render_pass;
-  bool has_external_stencil_test =
-      is_root_render_pass && output_surface_->HasExternalStencilTest();
-  bool should_clear_surface =
-      !has_external_stencil_test &&
-      (!is_root_render_pass || settings_->should_clear_root_render_pass);
-
-  // If |has_external_stencil_test| we can't discard or clear. Make sure we
-  // don't need to.
-  DCHECK_IMPLIES(has_external_stencil_test,
-                 !frame->current_render_pass->has_transparent_background);
-
-  SurfaceInitializationMode mode;
-  if (should_clear_surface && render_pass_is_clipped) {
-    mode = SURFACE_INITIALIZATION_MODE_SCISSORED_CLEAR;
-  } else if (should_clear_surface) {
-    mode = SURFACE_INITIALIZATION_MODE_FULL_SURFACE_CLEAR;
-  } else {
-    mode = SURFACE_INITIALIZATION_MODE_PRESERVE;
-  }
-
-  PrepareSurfaceForPass(
-      frame, mode,
-      MoveFromDrawToWindowSpace(frame, render_pass_scissor_in_draw_space));
-
-  const QuadList& quad_list = render_pass->quad_list;
-  ScopedPtrDeque<DrawPolygon> poly_list;
-
-  int next_polygon_id = 0;
-  int last_sorting_context_id = 0;
-  for (auto it = quad_list.BackToFrontBegin(); it != quad_list.BackToFrontEnd();
-       ++it) {
-    const DrawQuad& quad = **it;
-    gfx::QuadF send_quad(quad.visible_rect);
-
-    if (render_pass_is_clipped &&
-        ShouldSkipQuad(quad, render_pass_scissor_in_draw_space)) {
-      continue;
-    }
-
-    if (last_sorting_context_id != quad.shared_quad_state->sorting_context_id) {
-      last_sorting_context_id = quad.shared_quad_state->sorting_context_id;
-      FlushPolygons(&poly_list, frame, render_pass_scissor_in_draw_space,
-                    render_pass_is_clipped);
-    }
-
-    // This layer is in a 3D sorting context so we add it to the list of
-    // polygons to go into the BSP tree.
-    if (quad.shared_quad_state->sorting_context_id != 0) {
-      scoped_ptr<DrawPolygon> new_polygon(new DrawPolygon(
-          *it, quad.visible_rect, quad.quadTransform(), next_polygon_id++));
-      if (new_polygon->points().size() > 2u) {
-        poly_list.push_back(new_polygon.Pass());
-      }
-      continue;
-    }
-
-    // We are not in a 3d sorting context, so we should draw the quad normally.
-    SetScissorStateForQuad(frame, quad, render_pass_scissor_in_draw_space,
-                           render_pass_is_clipped);
-
-    DoDrawQuad(frame, &quad, nullptr);
-  }
-  FlushPolygons(&poly_list, frame, render_pass_scissor_in_draw_space,
-                render_pass_is_clipped);
-  FinishDrawingQuadList();
-}
-
-bool DirectRenderer::UseRenderPass(DrawingFrame* frame,
-                                   const RenderPass* render_pass) {
-  frame->current_render_pass = render_pass;
-  frame->current_texture = NULL;
-
-  if (render_pass == frame->root_render_pass) {
-    BindFramebufferToOutputSurface(frame);
-    InitializeViewport(frame,
-                       render_pass->output_rect,
-                       frame->device_viewport_rect,
-                       output_surface_->SurfaceSize());
-    return true;
-  }
-
-  ScopedResource* texture = render_pass_textures_.get(render_pass->id);
-  DCHECK(texture);
-
-  gfx::Size size = RenderPassTextureSize(render_pass);
-  size.Enlarge(enlarge_pass_texture_amount_.x(),
-               enlarge_pass_texture_amount_.y());
-  if (!texture->id())
-    texture->Allocate(
-        size, ResourceProvider::TEXTURE_HINT_IMMUTABLE_FRAMEBUFFER, RGBA_8888);
-  DCHECK(texture->id());
-
-  if (BindFramebufferToTexture(frame, texture, render_pass->output_rect)) {
-    InitializeViewport(frame, render_pass->output_rect,
-                       gfx::Rect(render_pass->output_rect.size()),
-                       render_pass->output_rect.size());
-    return true;
-  }
-
-  return false;
-}
-
-bool DirectRenderer::HasAllocatedResourcesForTesting(RenderPassId id) const {
-  ScopedResource* texture = render_pass_textures_.get(id);
-  return texture && texture->id();
-}
-
-// static
-gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
-  return render_pass->output_rect.size();
-}
-
-}  // namespace cc