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// Copyright 2014 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 "ui/gfx/ipc/gfx_param_traits.h"
#include <string>
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
namespace {
struct SkBitmap_Data {
// The color type for the bitmap (bits per pixel, etc).
SkColorType fColorType;
// The alpha type for the bitmap (opaque, premul, unpremul).
SkAlphaType fAlphaType;
// The width of the bitmap in pixels.
uint32 fWidth;
// The height of the bitmap in pixels.
uint32 fHeight;
void InitSkBitmapDataForTransfer(const SkBitmap& bitmap) {
const SkImageInfo& info = bitmap.info();
fColorType = info.fColorType;
fAlphaType = info.fAlphaType;
fWidth = info.fWidth;
fHeight = info.fHeight;
}
// Returns whether |bitmap| successfully initialized.
bool InitSkBitmapFromData(SkBitmap* bitmap,
const char* pixels,
size_t pixels_size) const {
if (!bitmap->tryAllocPixels(
SkImageInfo::Make(fWidth, fHeight, fColorType, fAlphaType)))
return false;
if (pixels_size != bitmap->getSize())
return false;
memcpy(bitmap->getPixels(), pixels, pixels_size);
return true;
}
};
} // namespace
namespace IPC {
void ParamTraits<gfx::Point>::Write(Message* m, const gfx::Point& p) {
m->WriteInt(p.x());
m->WriteInt(p.y());
}
bool ParamTraits<gfx::Point>::Read(const Message* m, PickleIterator* iter,
gfx::Point* r) {
int x, y;
if (!iter->ReadInt(&x) ||
!iter->ReadInt(&y))
return false;
r->set_x(x);
r->set_y(y);
return true;
}
void ParamTraits<gfx::Point>::Log(const gfx::Point& p, std::string* l) {
l->append(base::StringPrintf("(%d, %d)", p.x(), p.y()));
}
void ParamTraits<gfx::PointF>::Write(Message* m, const gfx::PointF& v) {
ParamTraits<float>::Write(m, v.x());
ParamTraits<float>::Write(m, v.y());
}
bool ParamTraits<gfx::PointF>::Read(const Message* m,
PickleIterator* iter,
gfx::PointF* r) {
float x, y;
if (!ParamTraits<float>::Read(m, iter, &x) ||
!ParamTraits<float>::Read(m, iter, &y))
return false;
r->set_x(x);
r->set_y(y);
return true;
}
void ParamTraits<gfx::PointF>::Log(const gfx::PointF& v, std::string* l) {
l->append(base::StringPrintf("(%f, %f)", v.x(), v.y()));
}
void ParamTraits<gfx::Size>::Write(Message* m, const gfx::Size& p) {
DCHECK_GE(p.width(), 0);
DCHECK_GE(p.height(), 0);
int values[2] = { p.width(), p.height() };
m->WriteBytes(&values, sizeof(int) * 2);
}
bool ParamTraits<gfx::Size>::Read(const Message* m,
PickleIterator* iter,
gfx::Size* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(int) * 2))
return false;
const int* values = reinterpret_cast<const int*>(char_values);
if (values[0] < 0 || values[1] < 0)
return false;
r->set_width(values[0]);
r->set_height(values[1]);
return true;
}
void ParamTraits<gfx::Size>::Log(const gfx::Size& p, std::string* l) {
l->append(base::StringPrintf("(%d, %d)", p.width(), p.height()));
}
void ParamTraits<gfx::SizeF>::Write(Message* m, const gfx::SizeF& p) {
float values[2] = { p.width(), p.height() };
m->WriteBytes(&values, sizeof(float) * 2);
}
bool ParamTraits<gfx::SizeF>::Read(const Message* m,
PickleIterator* iter,
gfx::SizeF* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(float) * 2))
return false;
const float* values = reinterpret_cast<const float*>(char_values);
r->set_width(values[0]);
r->set_height(values[1]);
return true;
}
void ParamTraits<gfx::SizeF>::Log(const gfx::SizeF& p, std::string* l) {
l->append(base::StringPrintf("(%f, %f)", p.width(), p.height()));
}
void ParamTraits<gfx::Vector2d>::Write(Message* m, const gfx::Vector2d& p) {
int values[2] = { p.x(), p.y() };
m->WriteBytes(&values, sizeof(int) * 2);
}
bool ParamTraits<gfx::Vector2d>::Read(const Message* m,
PickleIterator* iter,
gfx::Vector2d* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(int) * 2))
return false;
const int* values = reinterpret_cast<const int*>(char_values);
r->set_x(values[0]);
r->set_y(values[1]);
return true;
}
void ParamTraits<gfx::Vector2d>::Log(const gfx::Vector2d& v, std::string* l) {
l->append(base::StringPrintf("(%d, %d)", v.x(), v.y()));
}
void ParamTraits<gfx::Vector2dF>::Write(Message* m, const gfx::Vector2dF& p) {
float values[2] = { p.x(), p.y() };
m->WriteBytes(&values, sizeof(float) * 2);
}
bool ParamTraits<gfx::Vector2dF>::Read(const Message* m,
PickleIterator* iter,
gfx::Vector2dF* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(float) * 2))
return false;
const float* values = reinterpret_cast<const float*>(char_values);
r->set_x(values[0]);
r->set_y(values[1]);
return true;
}
void ParamTraits<gfx::Vector2dF>::Log(const gfx::Vector2dF& v, std::string* l) {
l->append(base::StringPrintf("(%f, %f)", v.x(), v.y()));
}
void ParamTraits<gfx::Rect>::Write(Message* m, const gfx::Rect& p) {
int values[4] = { p.x(), p.y(), p.width(), p.height() };
m->WriteBytes(&values, sizeof(int) * 4);
}
bool ParamTraits<gfx::Rect>::Read(const Message* m,
PickleIterator* iter,
gfx::Rect* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(int) * 4))
return false;
const int* values = reinterpret_cast<const int*>(char_values);
if (values[2] < 0 || values[3] < 0)
return false;
r->SetRect(values[0], values[1], values[2], values[3]);
return true;
}
void ParamTraits<gfx::Rect>::Log(const gfx::Rect& p, std::string* l) {
l->append(base::StringPrintf("(%d, %d, %d, %d)", p.x(), p.y(),
p.width(), p.height()));
}
void ParamTraits<gfx::RectF>::Write(Message* m, const gfx::RectF& p) {
float values[4] = { p.x(), p.y(), p.width(), p.height() };
m->WriteBytes(&values, sizeof(float) * 4);
}
bool ParamTraits<gfx::RectF>::Read(const Message* m,
PickleIterator* iter,
gfx::RectF* r) {
const char* char_values;
if (!iter->ReadBytes(&char_values, sizeof(float) * 4))
return false;
const float* values = reinterpret_cast<const float*>(char_values);
r->SetRect(values[0], values[1], values[2], values[3]);
return true;
}
void ParamTraits<gfx::RectF>::Log(const gfx::RectF& p, std::string* l) {
l->append(base::StringPrintf("(%f, %f, %f, %f)", p.x(), p.y(),
p.width(), p.height()));
}
void ParamTraits<SkBitmap>::Write(Message* m, const SkBitmap& p) {
size_t fixed_size = sizeof(SkBitmap_Data);
SkBitmap_Data bmp_data;
bmp_data.InitSkBitmapDataForTransfer(p);
m->WriteData(reinterpret_cast<const char*>(&bmp_data),
static_cast<int>(fixed_size));
size_t pixel_size = p.getSize();
SkAutoLockPixels p_lock(p);
m->WriteData(reinterpret_cast<const char*>(p.getPixels()),
static_cast<int>(pixel_size));
}
bool ParamTraits<SkBitmap>::Read(const Message* m,
PickleIterator* iter,
SkBitmap* r) {
const char* fixed_data;
int fixed_data_size = 0;
if (!iter->ReadData(&fixed_data, &fixed_data_size) ||
(fixed_data_size <= 0)) {
NOTREACHED();
return false;
}
if (fixed_data_size != sizeof(SkBitmap_Data))
return false; // Message is malformed.
const char* variable_data;
int variable_data_size = 0;
if (!iter->ReadData(&variable_data, &variable_data_size) ||
(variable_data_size < 0)) {
NOTREACHED();
return false;
}
const SkBitmap_Data* bmp_data =
reinterpret_cast<const SkBitmap_Data*>(fixed_data);
return bmp_data->InitSkBitmapFromData(r, variable_data, variable_data_size);
}
void ParamTraits<SkBitmap>::Log(const SkBitmap& p, std::string* l) {
l->append("<SkBitmap>");
}
} // namespace IPC
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