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- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include <memory>
- #include "tools/mdbviz/Model.h"
- #include "include/core/SkBitmap.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkPicture.h"
- #include "include/core/SkStream.h"
- #include "tools/debugger/DebugCanvas.h"
- Model::Model() : fCurOp(0) {
- SkImageInfo ii = SkImageInfo::MakeN32Premul(1024, 1024);
- fBM.allocPixels(ii, 0);
- }
- Model::~Model() {
- this->resetOpList();
- }
- Model::ErrorCode Model::load(const char* filename) {
- std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(filename);
- if (!stream) {
- return ErrorCode::kCouldntOpenFile;
- }
- sk_sp<SkPicture> pic(SkPicture::MakeFromStream(stream.get()));
- if (!pic) {
- return ErrorCode::kCouldntDecodeSKP;
- }
- {
- std::unique_ptr<DebugCanvas> temp(
- new DebugCanvas(SkScalarCeilToInt(pic->cullRect().width()),
- SkScalarCeilToInt(pic->cullRect().height())));
- temp->setPicture(pic.get());
- pic->playback(temp.get());
- temp->setPicture(nullptr);
- this->resetOpList();
- temp->detachCommands(&fOps);
- }
- this->setCurOp(fOps.count()-1);
- return ErrorCode::kOK;
- }
- const char* Model::ErrorString(ErrorCode err) {
- static const char* kStrings[] = {
- "OK",
- "Couldn't read file",
- "Couldn't decode picture"
- };
- return kStrings[(int)err];
- }
- const char* Model::getOpName(int index) const {
- return DrawCommand::GetCommandString(fOps[index]->getType());
- }
- bool Model::isHierarchyPush(int index) const {
- DrawCommand::OpType type = fOps[index]->getType();
- return DrawCommand::kSave_OpType == type || DrawCommand::kSaveLayer_OpType == type ||
- DrawCommand::kBeginDrawPicture_OpType == type;
- }
- bool Model::isHierarchyPop(int index) const {
- DrawCommand::OpType type = fOps[index]->getType();
- return DrawCommand::kRestore_OpType == type || DrawCommand::kEndDrawPicture_OpType == type;
- }
- void Model::setCurOp(int curOp) {
- SkASSERT(curOp < fOps.count());
- if (curOp == fCurOp) {
- return; // the render state is already up to date
- }
- fCurOp = curOp;
- this->drawTo(fCurOp);
- }
- void Model::drawTo(int index) {
- SkASSERT(index < fOps.count());
- SkCanvas canvas(fBM);
- int saveCount = canvas.save();
- for (int i = 0; i <= index; ++i) {
- if (fOps[i]->isVisible()) {
- fOps[i]->execute(&canvas);
- }
- }
- canvas.restoreToCount(saveCount);
- }
- void Model::resetOpList() {
- for (int i = 0; i < fOps.count(); ++i) {
- delete fOps[i];
- }
- fOps.reset();
- fCurOp = 0;
- }
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