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Incrementally render by sending the operator list by chunks as they're ready.

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This commit is contained in:
Brendan Dahl 2013-07-31 11:17:36 -07:00
parent f7d2a09bf8
commit bf72bc94e2
11 changed files with 641 additions and 789 deletions
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146
test/unit/evaluator_spec.js
View file

@ -36,14 +36,11 @@ describe('evaluator', function() {
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('qTT');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(1);
expect(result.fnArray[0]).toEqual('save');
expect(result.argsArray[0].length).toEqual(0);
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(1);
expect(result.fnArray[0]).toEqual('save');
expect(result.argsArray[0].length).toEqual(0);
});
it('should handle one operations', function() {
@ -51,13 +48,10 @@ describe('evaluator', function() {
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('Q');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(1);
expect(result.fnArray[0]).toEqual('restore');
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(1);
expect(result.fnArray[0]).toEqual('restore');
});
it('should handle two glued operations', function() {
@ -67,14 +61,11 @@ describe('evaluator', function() {
var resources = new ResourcesMock();
resources.Res1 = {};
var stream = new StringStream('/Res1 DoQ');
var promise = evaluator.getOperatorList(stream, resources);
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(2);
expect(result.fnArray[0]).toEqual('paintXObject');
expect(result.fnArray[1]).toEqual('restore');
});
var result = evaluator.getOperatorList(stream, resources);
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(2);
expect(result.fnArray[0]).toEqual('paintXObject');
expect(result.fnArray[1]).toEqual('restore');
});
it('should handle tree glued operations', function() {
@ -82,15 +73,12 @@ describe('evaluator', function() {
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('qqq');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('save');
expect(result.fnArray[1]).toEqual('save');
expect(result.fnArray[2]).toEqual('save');
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('save');
expect(result.fnArray[1]).toEqual('save');
expect(result.fnArray[2]).toEqual('save');
});
it('should handle three glued operations #2', function() {
@ -100,15 +88,12 @@ describe('evaluator', function() {
var resources = new ResourcesMock();
resources.Res1 = {};
var stream = new StringStream('B*Bf*');
var promise = evaluator.getOperatorList(stream, resources);
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('eoFillStroke');
expect(result.fnArray[1]).toEqual('fillStroke');
expect(result.fnArray[2]).toEqual('eoFill');
});
var result = evaluator.getOperatorList(stream, resources);
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('eoFillStroke');
expect(result.fnArray[1]).toEqual('fillStroke');
expect(result.fnArray[2]).toEqual('eoFill');
});
it('should handle glued operations and operands', function() {
@ -116,17 +101,14 @@ describe('evaluator', function() {
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('q5 Ts');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(2);
expect(result.fnArray[0]).toEqual('save');
expect(result.fnArray[1]).toEqual('setTextRise');
expect(result.argsArray.length).toEqual(2);
expect(result.argsArray[1].length).toEqual(1);
expect(result.argsArray[1][0]).toEqual(5);
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(2);
expect(result.fnArray[0]).toEqual('save');
expect(result.fnArray[1]).toEqual('setTextRise');
expect(result.argsArray.length).toEqual(2);
expect(result.argsArray[1].length).toEqual(1);
expect(result.argsArray[1][0]).toEqual(5);
});
it('should handle glued operations and literals', function() {
@ -134,21 +116,18 @@ describe('evaluator', function() {
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('trueifalserinullq');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('setFlatness');
expect(result.fnArray[1]).toEqual('setRenderingIntent');
expect(result.fnArray[2]).toEqual('save');
expect(result.argsArray.length).toEqual(3);
expect(result.argsArray[0].length).toEqual(1);
expect(result.argsArray[0][0]).toEqual(true);
expect(result.argsArray[1].length).toEqual(1);
expect(result.argsArray[1][0]).toEqual(false);
expect(result.argsArray[2].length).toEqual(0);
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(!!result.fnArray && !!result.argsArray).toEqual(true);
expect(result.fnArray.length).toEqual(3);
expect(result.fnArray[0]).toEqual('setFlatness');
expect(result.fnArray[1]).toEqual('setRenderingIntent');
expect(result.fnArray[2]).toEqual('save');
expect(result.argsArray.length).toEqual(3);
expect(result.argsArray[0].length).toEqual(1);
expect(result.argsArray[0][0]).toEqual(true);
expect(result.argsArray[1].length).toEqual(1);
expect(result.argsArray[1][0]).toEqual(false);
expect(result.argsArray[2].length).toEqual(0);
});
});
@ -159,39 +138,30 @@ describe('evaluator', function() {
'prefix');
var stream = new StringStream('5 1 d0');
console.log('here!');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
it('should execute if too many arguments', function() {
var evaluator = new PartialEvaluator(new PdfManagerMock(),
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('5 1 4 d0');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.argsArray[0][2]).toEqual(4);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(result.argsArray[0][0]).toEqual(5);
expect(result.argsArray[0][1]).toEqual(1);
expect(result.argsArray[0][2]).toEqual(4);
expect(result.fnArray[0]).toEqual('setCharWidth');
});
it('should skip if too few arguments', function() {
var evaluator = new PartialEvaluator(new PdfManagerMock(),
new XrefMock(), new HandlerMock(),
'prefix');
var stream = new StringStream('5 d0');
var promise = evaluator.getOperatorList(stream, new ResourcesMock());
promise.then(function(data) {
var result = data.queue;
expect(result.argsArray).toEqual([]);
expect(result.fnArray).toEqual([]);
});
var result = evaluator.getOperatorList(stream, new ResourcesMock());
expect(result.argsArray).toEqual([]);
expect(result.fnArray).toEqual([]);
});
});
});

2
test/unit/unit_test.html
View file

@ -15,8 +15,8 @@
<script type="text/javascript" src="../../src/chunked_stream.js"></script>
<script type="text/javascript" src="../../src/pdf_manager.js"></script>
<script type="text/javascript" src="../../src/core.js"></script>
<script type="text/javascript" src="../../src/api.js"></script>
<script type="text/javascript" src="../../src/util.js"></script>
<script type="text/javascript" src="../../src/api.js"></script>
<script type="text/javascript" src="../../src/canvas.js"></script>
<script type="text/javascript" src="../../src/obj.js"></script>
<script type="text/javascript" src="../../src/annotation.js"></script>