318 lines
13 KiB
JavaScript
318 lines
13 KiB
JavaScript
defineSuite([
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'Renderer/modernizeShader'
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], function(
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modernizeShader) {
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'use strict';
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it('adds version string', function() {
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var simple =
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'#define OUTPUT_DECLARATION \n' +
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'void main() \n' +
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'{ \n' +
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'} \n';
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var output = modernizeShader(simple, true);
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var expected = '#version 300 es';
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expect(output.split('\n')[0]).toEqual(expected);
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});
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it('removes extensions', function() {
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var extensions =
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'#define OUTPUT_DECLARATION \n' +
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'#extension GL_EXT_draw_buffers : enable \n' +
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'void main() \n' +
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'{ \n' +
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'} \n';
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var output = modernizeShader(extensions, true);
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var notExpected = '#extension GL_EXT_draw_buffers : enable \n';
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expect(output).not.toContain(notExpected);
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});
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it('throws exception if no output declaration', function() {
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var noOutputDeclaration =
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'void main() \n' +
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'{ \n' +
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'} \n';
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var runFunc = function() {
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modernizeShader(noOutputDeclaration, true);
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};
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expect(runFunc).toThrowDeveloperError();
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});
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it('creates layout qualifier for gl_FragColor', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'void main() \n' +
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'{ \n' +
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' gl_FragColor = vec4(0.0); \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected = 'layout(location = 0) out vec4 czm_fragColor;';
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expect(output).toContain(expected);
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});
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it('creates layout qualifier for gl_FragData', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'void main() \n' +
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'{ \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected = 'layout(location = 0) out vec4 czm_out0;';
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expect(output).toContain(expected);
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});
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it('creates layout qualifier for MRT', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#extension GL_EXT_draw_buffers : enable \n' +
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'void main() \n' +
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'{ \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' gl_FragData[1] = vec4(1.0); \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected0 = 'layout(location = 0) out vec4 czm_out0;';
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var expected1 = 'layout(location = 1) out vec4 czm_out1;';
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expect(output).toContain(expected0);
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expect(output).toContain(expected1);
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});
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it('does not create layout qualifier for reserved word lookalike variables', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'uniform sampler2D example; \n' +
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'void main() \n' +
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'{ \n' +
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' vec4 gl_FragData_ = vec4(0.0); \n' +
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' vec4 a_gl_FragData = vec4(0.0); \n' +
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' vec2 thisIsNotAGoodNameForAtexture2D = vec2(0.0); \n' +
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' vec4 gl_FragColor = texture2D(example, thisIsNotAGoodNameForAtexture2D); \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expectedBadName = 'vec2 thisIsNotAGoodNameForAtexture2D';
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var expectedVariable = 'vec4 a_gl_FragData = vec4(0.0);';
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var expectedTextureCall = 'texture(example, thisIsNotAGoodNameForAtexture2D)';
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var notExpectedLayout = 'layout(location = 0) out czm_out';
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expect(output).toContain(expectedBadName);
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expect(output).toContain(expectedVariable);
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expect(output).toContain(expectedTextureCall);
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expect(output).not.toContain(notExpectedLayout);
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});
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it('creates layout qualifier with swizzle', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#extension GL_EXT_draw_buffers : enable \n' +
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'void main() \n' +
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'{ \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' gl_FragData[1].xyz = vec3(1.0); \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected0 = 'layout(location = 0) out vec4 czm_out0;';
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var expected1 = 'layout(location = 1) out vec4 czm_out1;';
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expect(output).toContain(expected0);
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expect(output).toContain(expected1);
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});
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it('removes old functions/variables from fragment shader', function() {
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var old_fragment =
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'#define OUTPUT_DECLARATION \n' +
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'#extension GL_EXT_draw_buffers : enable \n' +
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'uniform sampler2D example; \n' +
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'uniform sampler2D exampleCube; \n' +
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'uniform sampler2D example3D; \n' +
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'varying vec2 v_textureCoordinates; \n' +
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'void main() \n' +
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'{ \n' +
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' gl_FragData[0] = texture2D(example, v_textureCoordinates); \n' +
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' gl_FragData[1] = textureCube(exampleCube, v_textureCoordinates); \n' +
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' gl_FragData[2] = texture3D(example3D, v_textureCoordinates); \n' +
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' gl_FragDepthEXT = 0.0; \n' +
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'} \n';
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var output = modernizeShader(old_fragment, true);
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var expectedDepth = 'gl_FragDepth = 0.0;';
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var expectedTexture2D = 'texture(example, v_textureCoordinates);';
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var expectedTextureCube = 'texture(exampleCube, v_textureCoordinates);';
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var expectedTexture3D = 'texture(example3D, v_textureCoordinates);';
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var expectedIn = 'in vec2 v_textureCoordinates;';
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var notExpectedDepth = 'gl_FragDepthEXT = 0.0;';
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var notExpectedTexture2D = 'texture2D(example, v_textureCoordinates);';
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var notExpectedTextureCube = 'textureCube(exampleCube, v_textureCoordinates);';
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var notExpectedTexture3D = 'texture3D(example3D, v_textureCoordinates);';
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var notExpectedVarying = 'varying vec2 v_textureCoordinates;';
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expect(output).toContain(expectedDepth);
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expect(output).toContain(expectedTexture2D);
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expect(output).toContain(expectedTextureCube);
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expect(output).toContain(expectedTexture3D);
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expect(output).toContain(expectedIn);
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expect(output).not.toContain(notExpectedDepth);
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expect(output).not.toContain(notExpectedTexture2D);
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expect(output).not.toContain(notExpectedTextureCube);
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expect(output).not.toContain(notExpectedTexture3D);
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expect(output).not.toContain(notExpectedVarying);
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});
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it('removes old functions/variables from vertex shader', function() {
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var old_vertex =
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'#define OUTPUT_DECLARATION \n' +
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'attribute vec4 position; \n' +
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'varying vec4 varyingVariable; \n' +
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'void main() \n' +
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'{ \n' +
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' gl_Position = position; \n' +
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' varyingVariable = position.wzyx; \n' +
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'} \n';
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var output = modernizeShader(old_vertex, false);
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var expectedOut = 'out vec4 varyingVariable;';
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var expectedIn = 'in vec4 position;';
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var notExpectedAttribute = 'attribute vec4 varyingVariable;';
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var notExpectedVarying = 'varying vec2 varyingVariable;';
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expect(output).toContain(expectedOut);
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expect(output).toContain(expectedIn);
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expect(output).not.toContain(notExpectedAttribute);
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expect(output).not.toContain(notExpectedVarying);
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});
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it('creates single layout qualifier under single branch, single condition', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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expect(output).toContain(expected);
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});
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it('creates multiple layout qualifiers under single branch, single condition', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' gl_FragData[1] = vec4(1.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected0 = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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var expected1 = '#ifdef EXAMPLE_BRANCH \nlayout(location = 1) out vec4 czm_out1;\n#endif';
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expect(output).toContain(expected0);
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expect(output).toContain(expected1);
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});
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it('creates multiple layout qualifiers under multiple branches, single condition (cancels)', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' gl_FragData[1] = vec4(1.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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' #ifndef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' gl_FragData[1] = vec4(1.0); \n' +
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' #endif //!EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var notExpected = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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expect(output).not.toContain(notExpected);
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});
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it('creates single layout qualifier under multiple branches, multiple conditions (cancels)', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'#define EXAMPLE_BRANCH1 \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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' #ifdef EXAMPLE_BRANCH1 \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #endif //EXAMPLE_BRANCH1 \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var notExpected = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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expect(output).not.toContain(notExpected);
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});
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it('creates multiple layout qualifiers under multiple branches, multiple conditions (cascades)', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'#define EXAMPLE_BRANCH1 \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #ifdef EXAMPLE_BRANCH1 \n' +
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' gl_FragData[1] = vec4(1.0); \n' +
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' #endif //EXAMPLE_BRANCH1 \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected0 = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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var expected1 = /#ifdef (EXAMPLE_BRANCH|EXAMPLE_BRANCH1)\s*\n\s*#ifdef (EXAMPLE_BRANCH1|EXAMPLE_BRANCH)\s*\n\s*layout\(location = 1\) out vec4 czm_out1;/g;
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var containsExpected0 = expected1.test(output);
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expect(output).toContain(expected0);
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expect(containsExpected0).toBe(true);
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});
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it('creates single layout qualifier under multiple branches, single condition (else)', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #else \n' +
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' gl_FragData[0] = vec4(1.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var notExpected = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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expect(output).not.toContain(notExpected);
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});
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it('creates branched layout qualifiers for gl_FragColor and gl_FragData', function() {
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var noQualifiers =
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'#define OUTPUT_DECLARATION \n' +
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'#define EXAMPLE_BRANCH \n' +
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'void main() \n' +
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'{ \n' +
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' #ifdef EXAMPLE_BRANCH \n' +
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' gl_FragData[0] = vec4(0.0); \n' +
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' #else \n' +
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' gl_FragColor = vec4(1.0); \n' +
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' #endif //EXAMPLE_BRANCH \n' +
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'} \n';
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var output = modernizeShader(noQualifiers, true);
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var expected0 = '#ifdef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_out0;\n#endif';
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var expected1 = '#ifndef EXAMPLE_BRANCH \nlayout(location = 0) out vec4 czm_fragColor;\n#endif';
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expect(output).toContain(expected0);
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expect(output).toContain(expected1);
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});
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});
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