Revert 98706 - Initial checkin of the compositor_model_bench tool

gpu/tools/compositor_model_bench/forward_render_model.cc

-// Copyright (c) 2011 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 "gpu/tools/compositor_model_bench/forward_render_model.h"
-
-#include <cstdlib>
-#include <vector>
-
-#include "gpu/tools/compositor_model_bench/render_model_utils.h"
-
-using std::vector;
-
-class ForwardRenderNodeVisitor : public RenderNodeVisitor {
- public:
-  ForwardRenderNodeVisitor() {}
-
-  virtual void BeginVisitRenderNode(RenderNode* v) OVERRIDE {
-    NOTREACHED();
-  }
-
-  virtual void BeginVisitCCNode(CCNode* v) OVERRIDE {
-    if (!v->drawsContent())
-      return;
-    ConfigAndActivateShaderForNode(v);
-    DrawQuad(v->width(), v->height());
-  }
-
-  virtual void BeginVisitContentLayerNode(ContentLayerNode* l) OVERRIDE {
-    if (!l->drawsContent())
-      return;
-    ConfigAndActivateShaderForTiling(l);
-    // Now that we capture root layer tiles, a layer without tiles
-    // should not get drawn.
-    for (size_t n = 0; n < l->num_tiles(); ++n) {
-      const Tile* i = l->tile(n);
-      DrawTileQuad(i->texID, i->x, i->y);
-    }
-  }
-};
-
-ForwardRenderSimulator::ForwardRenderSimulator(RenderNode* root,
-                                               int window_width,
-                                               int window_height)
-    : RenderModelSimulator(root) {
-  textures_.reset(new TextureGenerator(root));
-  visitor_.reset(new ForwardRenderNodeVisitor());
-  glViewport(0, 0, window_width, window_height);
-  glDisable(GL_DEPTH_TEST);
-  glDisable(GL_CULL_FACE);
-  glEnable(GL_BLEND);
-  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-}
-
-ForwardRenderSimulator::~ForwardRenderSimulator() OVERRIDE {
-}
-
-void ForwardRenderSimulator::Update() OVERRIDE {
-  glClearColor(0, 0, 1, 1);
-  glColorMask(true, true, true, true);
-  glClear(GL_COLOR_BUFFER_BIT);
-  glColorMask(true, true, true, false);
-  BeginFrame();
-  root_->Accept(visitor_.get());
-}
-
-void ForwardRenderSimulator::Resize(int width, int height) OVERRIDE {
-  glViewport(0, 0, width, height);
-}
-