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// 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/layers/nine_patch_layer.h"
#include "cc/layers/nine_patch_layer_impl.h"
#include "cc/resources/prioritized_resource.h"
#include "cc/resources/resource_update.h"
#include "cc/resources/resource_update_queue.h"
#include "cc/trees/layer_tree_host.h"
namespace cc {
scoped_refptr<NinePatchLayer> NinePatchLayer::Create() {
return make_scoped_refptr(new NinePatchLayer());
}
NinePatchLayer::NinePatchLayer()
: bitmap_dirty_(false) {}
NinePatchLayer::~NinePatchLayer() {}
scoped_ptr<LayerImpl> NinePatchLayer::CreateLayerImpl(
LayerTreeImpl* tree_impl) {
return NinePatchLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
}
void NinePatchLayer::SetTexturePriorities(
const PriorityCalculator& priority_calc) {
if (resource_ && !resource_->texture()->resource_manager()) {
// Release the resource here, as it is no longer tied to a resource manager.
resource_.reset();
if (!bitmap_.isNull())
CreateResource();
} else if (needs_display_ && bitmap_dirty_ && DrawsContent()) {
CreateResource();
}
if (resource_) {
resource_->texture()->set_request_priority(
PriorityCalculator::UIPriority(true));
// FIXME: Need to support swizzle in the shader for
// !PlatformColor::sameComponentOrder(texture_format)
GLenum texture_format =
layer_tree_host()->GetRendererCapabilities().best_texture_format;
resource_->texture()->SetDimensions(
gfx::Size(bitmap_.width(), bitmap_.height()), texture_format);
}
}
void NinePatchLayer::SetBitmap(const SkBitmap& bitmap, gfx::Rect aperture) {
bitmap_ = bitmap;
image_aperture_ = aperture;
bitmap_dirty_ = true;
SetNeedsDisplay();
}
void NinePatchLayer::Update(ResourceUpdateQueue* queue,
const OcclusionTracker* occlusion,
RenderingStats* stats) {
CreateUpdaterIfNeeded();
if (resource_ &&
(bitmap_dirty_ || resource_->texture()->resource_id() == 0)) {
gfx::Rect content_rect(0, 0, bitmap_.width(), bitmap_.height());
ResourceUpdate upload = ResourceUpdate::Create(resource_->texture(),
&bitmap_,
content_rect,
content_rect,
gfx::Vector2d());
queue->AppendFullUpload(upload);
bitmap_dirty_ = false;
}
}
void NinePatchLayer::CreateUpdaterIfNeeded() {
if (updater_)
return;
updater_ = ImageLayerUpdater::Create();
}
void NinePatchLayer::CreateResource() {
DCHECK(!bitmap_.isNull());
CreateUpdaterIfNeeded();
updater_->set_bitmap(bitmap_);
needs_display_ = false;
if (!resource_) {
resource_ = updater_->CreateResource(
layer_tree_host()->contents_texture_manager());
}
}
bool NinePatchLayer::DrawsContent() const {
bool draws = !bitmap_.isNull() &&
Layer::DrawsContent() &&
bitmap_.width() &&
bitmap_.height();
return draws;
}
void NinePatchLayer::PushPropertiesTo(LayerImpl* layer) {
Layer::PushPropertiesTo(layer);
NinePatchLayerImpl* layer_impl = static_cast<NinePatchLayerImpl*>(layer);
if (resource_) {
DCHECK(!bitmap_.isNull());
layer_impl->SetResourceId(resource_->texture()->resource_id());
layer_impl->SetLayout(
gfx::Size(bitmap_.width(), bitmap_.height()), image_aperture_);
}
}
} // namespace cc
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