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// 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 "ppapi/cpp/graphics_2d.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/ppb_graphics_2d.h"
#include "ppapi/cpp/completion_callback.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/instance_handle.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/module_impl.h"
#include "ppapi/cpp/point.h"
#include "ppapi/cpp/rect.h"
namespace pp {
namespace {
template <> const char* interface_name<PPB_Graphics2D_1_0>() {
return PPB_GRAPHICS_2D_INTERFACE_1_0;
}
template <> const char* interface_name<PPB_Graphics2D_1_1>() {
return PPB_GRAPHICS_2D_INTERFACE_1_1;
}
} // namespace
Graphics2D::Graphics2D() : Resource() {
}
Graphics2D::Graphics2D(const Graphics2D& other)
: Resource(other),
size_(other.size_) {
}
Graphics2D::Graphics2D(const InstanceHandle& instance,
const Size& size,
bool is_always_opaque)
: Resource() {
if (has_interface<PPB_Graphics2D_1_1>()) {
PassRefFromConstructor(get_interface<PPB_Graphics2D_1_1>()->Create(
instance.pp_instance(),
&size.pp_size(),
PP_FromBool(is_always_opaque)));
} else if (has_interface<PPB_Graphics2D_1_0>()) {
PassRefFromConstructor(get_interface<PPB_Graphics2D_1_0>()->Create(
instance.pp_instance(),
&size.pp_size(),
PP_FromBool(is_always_opaque)));
} else {
return;
}
if (!is_null()) {
// Only save the size if allocation succeeded.
size_ = size;
}
}
Graphics2D::~Graphics2D() {
}
Graphics2D& Graphics2D::operator=(const Graphics2D& other) {
Resource::operator=(other);
size_ = other.size_;
return *this;
}
void Graphics2D::PaintImageData(const ImageData& image,
const Point& top_left) {
if (has_interface<PPB_Graphics2D_1_1>()) {
get_interface<PPB_Graphics2D_1_1>()->PaintImageData(pp_resource(),
image.pp_resource(),
&top_left.pp_point(),
NULL);
} else if (has_interface<PPB_Graphics2D_1_0>()) {
get_interface<PPB_Graphics2D_1_0>()->PaintImageData(pp_resource(),
image.pp_resource(),
&top_left.pp_point(),
NULL);
}
}
void Graphics2D::PaintImageData(const ImageData& image,
const Point& top_left,
const Rect& src_rect) {
if (has_interface<PPB_Graphics2D_1_1>()) {
get_interface<PPB_Graphics2D_1_1>()->PaintImageData(pp_resource(),
image.pp_resource(),
&top_left.pp_point(),
&src_rect.pp_rect());
} else if (has_interface<PPB_Graphics2D_1_0>()) {
get_interface<PPB_Graphics2D_1_0>()->PaintImageData(pp_resource(),
image.pp_resource(),
&top_left.pp_point(),
&src_rect.pp_rect());
}
}
void Graphics2D::Scroll(const Rect& clip, const Point& amount) {
if (has_interface<PPB_Graphics2D_1_1>()) {
get_interface<PPB_Graphics2D_1_1>()->Scroll(pp_resource(),
&clip.pp_rect(),
&amount.pp_point());
} else if (has_interface<PPB_Graphics2D_1_0>()) {
get_interface<PPB_Graphics2D_1_0>()->Scroll(pp_resource(),
&clip.pp_rect(),
&amount.pp_point());
}
}
void Graphics2D::ReplaceContents(ImageData* image) {
if (has_interface<PPB_Graphics2D_1_1>()) {
get_interface<PPB_Graphics2D_1_1>()->ReplaceContents(pp_resource(),
image->pp_resource());
} else if (has_interface<PPB_Graphics2D_1_0>()) {
get_interface<PPB_Graphics2D_1_0>()->ReplaceContents(pp_resource(),
image->pp_resource());
} else {
return;
}
// On success, reset the image data. This is to help prevent people
// from continuing to use the resource which will result in artifacts.
*image = ImageData();
}
int32_t Graphics2D::Flush(const CompletionCallback& cc) {
if (has_interface<PPB_Graphics2D_1_1>()) {
return get_interface<PPB_Graphics2D_1_1>()->Flush(
pp_resource(), cc.pp_completion_callback());
} else if (has_interface<PPB_Graphics2D_1_0>()) {
return get_interface<PPB_Graphics2D_1_0>()->Flush(
pp_resource(), cc.pp_completion_callback());
} else {
return cc.MayForce(PP_ERROR_NOINTERFACE);
}
}
bool Graphics2D::SetScale(float scale) {
if (!has_interface<PPB_Graphics2D_1_1>())
return false;
return PP_ToBool(get_interface<PPB_Graphics2D_1_1>()->SetScale(pp_resource(),
scale));
}
float Graphics2D::GetScale() {
if (!has_interface<PPB_Graphics2D_1_1>())
return 1.0f;
return get_interface<PPB_Graphics2D_1_1>()->GetScale(pp_resource());
}
} // namespace pp
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