332 lines
13 KiB
JavaScript
332 lines
13 KiB
JavaScript
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defineSuite([
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'Renderer/VertexArrayFacade',
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'Core/ComponentDatatype',
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'Renderer/BufferUsage',
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'Specs/createContext'
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], function(
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VertexArrayFacade,
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ComponentDatatype,
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BufferUsage,
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createContext) {
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'use strict';
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var context;
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beforeAll(function() {
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context = createContext();
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});
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afterAll(function() {
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context.destroyForSpecs();
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});
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it('creates a vertex array with static floats', function() {
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var positionIndex = 0;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}], 1);
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var writer = vaf.writers[positionIndex];
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expect(writer).toBeDefined();
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writer(0, 1.0, 2.0, 3.0); // Write [1.0, 2.0, 3.0] at index zero.
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vaf.commit(); // Commit writes
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.sizeInBytes).toEqual(1 * 3 * 4);
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.usage).toEqual(BufferUsage.STATIC_DRAW);
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expect(vaf.va[0].va.getAttribute(0).componentsPerAttribute).toEqual(3);
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expect(vaf.va[0].va.getAttribute(0).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(0).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(0).strideInBytes).toEqual(3 * 4);
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});
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it('resizes a vertex array with static floats', function() {
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var positionIndex = 0;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}], 1);
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var writer = vaf.writers[positionIndex];
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expect(writer).toBeDefined();
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writer(0, 1.0, 2.0, 3.0); // Write [1.0, 2.0, 3.0] at index zero.
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vaf.resize(2); // Two vertices
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writer(1, 1.0, 2.0, 3.0); // Write [4.0, 5.0, 6.0] at index one.
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vaf.commit(); // Commit writes
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.sizeInBytes).toEqual(2 * 3 * 4);
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.usage).toEqual(BufferUsage.STATIC_DRAW);
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expect(vaf.va[0].va.getAttribute(0).componentsPerAttribute).toEqual(3);
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expect(vaf.va[0].va.getAttribute(0).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(0).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(0).strideInBytes).toEqual(3 * 4);
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});
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it('creates a vertex array with static floats and unsigned bytes', function() {
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var positionIndex = 0;
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var colorIndex = 2;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}, {
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index : colorIndex,
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componentsPerAttribute : 4,
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componentDatatype : ComponentDatatype.UNSIGNED_BYTE,
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usage : BufferUsage.STATIC_DRAW
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}], 1);
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var positionWriter = vaf.writers[positionIndex];
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var colorWriter = vaf.writers[colorIndex];
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expect(positionWriter).toBeDefined();
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expect(colorWriter).toBeDefined();
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positionWriter(0, 1.0, 2.0, 3.0); // Write position [1.0, 2.0, 3.0] at index zero.
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colorWriter(0, 0, 255, 0, 255); // Write color [0, 255, 0, 255] at index zero.
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vaf.commit(); // Commit writes
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// Position attribute
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.sizeInBytes).toEqual(1 * ((3 * 4) + (4 * 1)));
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.usage).toEqual(BufferUsage.STATIC_DRAW);
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expect(vaf.va[0].va.getAttribute(0).componentsPerAttribute).toEqual(3);
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expect(vaf.va[0].va.getAttribute(0).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(0).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(0).strideInBytes).toEqual((3 * 4) + (4 * 1));
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// Color attribute
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer).toEqual(vaf.va[0].va.getAttribute(0).vertexBuffer);
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expect(vaf.va[0].va.getAttribute(1).componentsPerAttribute).toEqual(4);
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expect(vaf.va[0].va.getAttribute(1).componentDatatype).toEqual(ComponentDatatype.UNSIGNED_BYTE);
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expect(vaf.va[0].va.getAttribute(1).offsetInBytes).toEqual(3 * 4);
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expect(vaf.va[0].va.getAttribute(1).strideInBytes).toEqual(vaf.va[0].va.getAttribute(0).strideInBytes);
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});
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it('creates a vertex array with static and dynamic attributes', function() {
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var positionIndex = 0;
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var txCoordIndex = 2;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}, {
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index : txCoordIndex,
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componentsPerAttribute : 2,
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componentDatatype : ComponentDatatype.UNSIGNED_SHORT,
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usage : BufferUsage.DYNAMIC_DRAW,
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normalize : true
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}], 1);
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var positionWriter = vaf.writers[positionIndex];
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var txCoordWriter = vaf.writers[txCoordIndex];
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expect(positionWriter).toBeDefined();
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expect(txCoordWriter).toBeDefined();
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positionWriter(0, 1.0, 2.0, 3.0);
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txCoordWriter(0, 32 * 1024, 64 * 1024);
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vaf.commit();
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// Position attribute
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.sizeInBytes).toEqual(1 * (3 * 4));
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.usage).toEqual(BufferUsage.STATIC_DRAW);
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expect(vaf.va[0].va.getAttribute(0).componentsPerAttribute).toEqual(3);
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expect(vaf.va[0].va.getAttribute(0).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(0).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(0).strideInBytes).toEqual(3 * 4);
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// Texture coordinate attribute
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer.sizeInBytes).toEqual(1 * (2 * 2));
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer.usage).toEqual(BufferUsage.DYNAMIC_DRAW);
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expect(vaf.va[0].va.getAttribute(1).componentsPerAttribute).toEqual(2);
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expect(vaf.va[0].va.getAttribute(1).componentDatatype).toEqual(ComponentDatatype.UNSIGNED_SHORT);
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expect(vaf.va[0].va.getAttribute(1).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(1).strideInBytes).toEqual(2 * 2);
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});
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it('sub-commits', function() {
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var positionIndex = 0;
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var temperatureIndex = 2;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}, {
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index : temperatureIndex,
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componentsPerAttribute : 1,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STREAM_DRAW
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}], 2);
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var positionWriter = vaf.writers[positionIndex];
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var temperatureWriter = vaf.writers[temperatureIndex];
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expect(positionWriter).toBeDefined();
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expect(temperatureWriter).toBeDefined();
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positionWriter(0, 1.0, 2.0, 3.0);
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temperatureWriter(0, 98.6);
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positionWriter(1, 7.0, 8.0, 9.0);
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temperatureWriter(1, 32.0);
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vaf.commit();
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// Rewrite all vertices
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positionWriter(0, 10.0, 20.0, 30.0);
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temperatureWriter(0, 37.0);
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positionWriter(1, 70.0, 80.0, 90.0);
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temperatureWriter(1, 0.0);
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vaf.commit();
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// Sub-commit to just one vertex
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temperatureWriter(1, 212.0);
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vaf.subCommit(1, 1);
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vaf.endSubCommits();
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// Position attribute
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer.sizeInBytes).toEqual(2 * (3 * 4));
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expect(vaf.va[0].va.getAttribute(1).vertexBuffer.usage).toEqual(BufferUsage.STATIC_DRAW);
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expect(vaf.va[0].va.getAttribute(1).componentsPerAttribute).toEqual(3);
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expect(vaf.va[0].va.getAttribute(1).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(1).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(1).strideInBytes).toEqual(3 * 4);
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// Temperature attribute
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).toBeDefined();
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.sizeInBytes).toEqual(2 * 4);
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer.usage).toEqual(BufferUsage.STREAM_DRAW);
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expect(vaf.va[0].va.getAttribute(0).componentsPerAttribute).toEqual(1);
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expect(vaf.va[0].va.getAttribute(0).componentDatatype).toEqual(ComponentDatatype.FLOAT);
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expect(vaf.va[0].va.getAttribute(0).offsetInBytes).toEqual(0);
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expect(vaf.va[0].va.getAttribute(0).strideInBytes).toEqual(1 * 4);
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});
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it('destroys previous vertex buffers when number of vertices grows', function() {
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var positionIndex = 0;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}], 1);
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var writer = vaf.writers[positionIndex];
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expect(writer).toBeDefined();
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writer(0, 1.0, 2.0, 3.0); // Write [1.0, 2.0, 3.0] at index zero.
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vaf.commit(); // Commit writes
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// Grab the vertex buffer
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var vbBeforeResize = vaf.va[0].va.getAttribute(0).vertexBuffer;
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vaf.resize(2); // Two vertices
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writer(1, 1.0, 2.0, 3.0); // Write [4.0, 5.0, 6.0] at index one.
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vaf.commit(); // Commit writes
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expect(vbBeforeResize.isDestroyed()).toBe(true);
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expect(vaf.va[0].va.getAttribute(0).vertexBuffer).not.toBe(vbBeforeResize);
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});
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it('is not initially destroyed', function () {
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var positionIndex = 0;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}], 1);
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expect(vaf.isDestroyed()).toBe(false);
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});
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it('throws when constructed without a context', function() {
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expect(function() {
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return new VertexArrayFacade(undefined, undefined, undefined);
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}).toThrowDeveloperError();
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});
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it('throws when constructed undefined attributes', function() {
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expect(function() {
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return new VertexArrayFacade(context, undefined, undefined);
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}).toThrowDeveloperError();
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});
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it('throws when constructed without attributes', function() {
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expect(function() {
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return new VertexArrayFacade(context, []);
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}).toThrowDeveloperError();
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});
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it('throws when constructed with attributes without componentsPerAttribute', function() {
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expect(function() {
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return new VertexArrayFacade(context, [{}]);
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}).toThrowDeveloperError();
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});
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it('throws when constructed with attributes with an invalid componentDatatype', function() {
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expect(function() {
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return new VertexArrayFacade(context, [{
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componentsPerAttribute : 1,
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componentDatatype : 'invalid component datatype'
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}]);
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}).toThrowDeveloperError();
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});
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it('throws when constructed with attributes with an invalid usage', function() {
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expect(function() {
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return new VertexArrayFacade(context, [{
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componentsPerAttribute : 1,
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usage : 'invalid component usage'
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}]);
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}).toThrowDeveloperError();
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});
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it('throws when constructed with attributes with duplicate indices', function() {
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expect(function() {
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return new VertexArrayFacade(context, [{
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index : 0,
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componentsPerAttribute : 1
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}, {
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index : 0,
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componentsPerAttribute : 1
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}]);
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}).toThrowDeveloperError();
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});
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it('subCommit throws when passed an invalid offsetInVertices', function() {
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var positionIndex = 0;
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var vaf = new VertexArrayFacade(context, [{
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index : positionIndex,
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componentsPerAttribute : 3,
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componentDatatype : ComponentDatatype.FLOAT,
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usage : BufferUsage.STATIC_DRAW
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}], 10);
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expect(function() {
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vaf.subCommit(-1, 1);
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}).toThrowDeveloperError();
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expect(function() {
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vaf.subCommit(10, 1);
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}).toThrowDeveloperError();
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expect(function() {
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vaf.subCommit(1, 10);
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}).toThrowDeveloperError();
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});
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}, 'WebGL');
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