8f4e224541
Change-Id: I489a54860139d1820471aa0330b29a8ae9eca31e Reviewed-on: https://skia-review.googlesource.com/c/skia/+/202316 Commit-Queue: Mike Klein <mtklein@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
115 lines
2.6 KiB
C++
115 lines
2.6 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include <memory>
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#include "Model.h"
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#include "DebugCanvas.h"
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkPicture.h"
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#include "SkStream.h"
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Model::Model() : fCurOp(0) {
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SkImageInfo ii = SkImageInfo::MakeN32Premul(1024, 1024);
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fBM.allocPixels(ii, 0);
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}
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Model::~Model() {
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this->resetOpList();
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}
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Model::ErrorCode Model::load(const char* filename) {
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std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(filename);
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if (!stream) {
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return ErrorCode::kCouldntOpenFile;
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}
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sk_sp<SkPicture> pic(SkPicture::MakeFromStream(stream.get()));
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if (!pic) {
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return ErrorCode::kCouldntDecodeSKP;
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}
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{
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std::unique_ptr<DebugCanvas> temp(
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new DebugCanvas(SkScalarCeilToInt(pic->cullRect().width()),
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SkScalarCeilToInt(pic->cullRect().height())));
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temp->setPicture(pic.get());
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pic->playback(temp.get());
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temp->setPicture(nullptr);
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this->resetOpList();
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temp->detachCommands(&fOps);
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}
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this->setCurOp(fOps.count()-1);
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return ErrorCode::kOK;
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}
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const char* Model::ErrorString(ErrorCode err) {
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static const char* kStrings[] = {
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"OK",
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"Couldn't read file",
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"Couldn't decode picture"
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};
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return kStrings[(int)err];
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}
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const char* Model::getOpName(int index) const {
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return DrawCommand::GetCommandString(fOps[index]->getType());
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}
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bool Model::isHierarchyPush(int index) const {
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DrawCommand::OpType type = fOps[index]->getType();
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return DrawCommand::kSave_OpType == type || DrawCommand::kSaveLayer_OpType == type ||
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DrawCommand::kBeginDrawPicture_OpType == type;
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}
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bool Model::isHierarchyPop(int index) const {
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DrawCommand::OpType type = fOps[index]->getType();
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return DrawCommand::kRestore_OpType == type || DrawCommand::kEndDrawPicture_OpType == type;
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}
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void Model::setCurOp(int curOp) {
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SkASSERT(curOp < fOps.count());
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if (curOp == fCurOp) {
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return; // the render state is already up to date
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}
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fCurOp = curOp;
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this->drawTo(fCurOp);
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}
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void Model::drawTo(int index) {
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SkASSERT(index < fOps.count());
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SkCanvas canvas(fBM);
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int saveCount = canvas.save();
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for (int i = 0; i <= index; ++i) {
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if (fOps[i]->isVisible()) {
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fOps[i]->execute(&canvas);
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}
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}
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canvas.restoreToCount(saveCount);
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}
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void Model::resetOpList() {
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for (int i = 0; i < fOps.count(); ++i) {
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delete fOps[i];
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}
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fOps.reset();
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fCurOp = 0;
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}
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