Virtual GL

gpu/command_buffer/service/vertex_attrib_manager.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 "gpu/command_buffer/service/vertex_attrib_manager.h"
 
 #include <list>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 45 matching lines @@
   }
 
   uint32 usable_size = buffer_size - offset_;
   GLuint num_elements = usable_size / real_stride_ +
       ((usable_size % real_stride_) >=
        (GLES2Util::GetGLTypeSizeForTexturesAndBuffers(type_) * size_) ? 1 : 0);
   return index < num_elements;
 }
 
 VertexAttribManager::VertexAttribManager()
-    : max_vertex_attribs_(0),
-      num_fixed_attribs_(0),
+    : num_fixed_attribs_(0),
       element_array_buffer_(NULL),
       manager_(NULL),
       deleted_(false),
       service_id_(0) {
 }
 
 VertexAttribManager::VertexAttribManager(
     VertexArrayManager* manager, GLuint service_id, uint32 num_vertex_attribs)
-    : max_vertex_attribs_(0),
-      num_fixed_attribs_(0),
+    : num_fixed_attribs_(0),
       element_array_buffer_(NULL),
       manager_(manager),
       deleted_(false),
       service_id_(service_id) {
   manager_->StartTracking(this);
   Initialize(num_vertex_attribs, false);
 }
 
 VertexAttribManager::~VertexAttribManager() {
   if (manager_) {
     if (manager_->have_context_) {
       if (service_id_ != 0)  // 0 indicates an emulated VAO
         glDeleteVertexArraysOES(1, &service_id_);
     }
     manager_->StopTracking(this);
     manager_ = NULL;
   }
 }
 
 void VertexAttribManager::Initialize(
     uint32 max_vertex_attribs, bool init_attribs) {
-  max_vertex_attribs_ = max_vertex_attribs;
-  vertex_attrib_infos_.reset(
-      new VertexAttribInfo[max_vertex_attribs]);
+  vertex_attrib_infos_.resize(max_vertex_attribs);
   bool disable_workarounds = CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableGpuDriverBugWorkarounds);
 
-  for (uint32 vv = 0; vv < max_vertex_attribs; ++vv) {
+  for (uint32 vv = 0; vv < vertex_attrib_infos_.size(); ++vv) {
     vertex_attrib_infos_[vv].set_index(vv);
     vertex_attrib_infos_[vv].SetList(&disabled_vertex_attribs_);
 
     if (!disable_workarounds && init_attribs) {
       glVertexAttrib4f(vv, 0.0f, 0.0f, 0.0f, 1.0f);
     }
   }
 }
 
 bool VertexAttribManager::Enable(GLuint index, bool enable) {
-  if (index >= max_vertex_attribs_) {
+  if (index >= vertex_attrib_infos_.size()) {
     return false;
   }
   VertexAttribInfo& info = vertex_attrib_infos_[index];
   if (info.enabled() != enable) {
     info.set_enabled(enable);
     info.SetList(enable ? &enabled_vertex_attribs_ : &disabled_vertex_attribs_);
   }
   return true;
 }
 
 void VertexAttribManager::Unbind(BufferManager::BufferInfo* buffer) {
   if (element_array_buffer_ == buffer) {
     element_array_buffer_ = NULL;
   }
-  for (uint32 vv = 0; vv < max_vertex_attribs_; ++vv) {
+  for (uint32 vv = 0; vv < vertex_attrib_infos_.size(); ++vv) {
     vertex_attrib_infos_[vv].Unbind(buffer);
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu