diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-utils.js')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-utils.js | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-utils.js b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-utils.js new file mode 100644 index 0000000000..f37f12fe91 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/js/tests/tex-image-and-sub-image-utils.js @@ -0,0 +1,865 @@ +/* +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +*/ +var TexImageUtils = (function() { + + "use strict"; + + var wtu = WebGLTestUtils; + + /** + * A vertex shader for a single texture. + * @type {string} + */ + var simpleTextureVertexShaderES3 = [ + '#version 300 es', + 'in vec4 vPosition;', + 'in vec2 texCoord0;', + 'out vec2 texCoord;', + 'void main() {', + ' gl_Position = vPosition;', + ' texCoord = texCoord0;', + '}'].join('\n'); + + /** + * A fragment shader for a single unsigned integer texture. + * @type {string} + */ + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simpleUintTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump usampler2D tex;', + 'in vec2 texCoord;', + 'out vec4 fragData;', + 'void main() {', + ' uvec4 data = texture(tex, texCoord);', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single signed integer texture. + * @type {string} + */ + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simpleIntTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump isampler2D tex;', + 'in vec2 texCoord;', + 'out vec4 fragData;', + 'void main() {', + ' ivec4 data = texture(tex, texCoord);', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single cube map unsigned integer texture. + * @type {string} + */ + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simpleCubeMapUintTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump usamplerCube tex;', + 'uniform highp int face;', + 'in vec2 texCoord;', + 'out vec4 fragData;', + 'void main() {', + // Transform [0, 1] -> [-1, 1] + ' vec2 texC2 = (texCoord * 2.) - 1.;', + // Transform 2d tex coord. to each face of TEXTURE_CUBE_MAP coord. + ' vec3 texCube = vec3(0., 0., 0.);', + ' if (face == 34069) {', // TEXTURE_CUBE_MAP_POSITIVE_X + ' texCube = vec3(1., -texC2.y, -texC2.x);', + ' } else if (face == 34070) {', // TEXTURE_CUBE_MAP_NEGATIVE_X + ' texCube = vec3(-1., -texC2.y, texC2.x);', + ' } else if (face == 34071) {', // TEXTURE_CUBE_MAP_POSITIVE_Y + ' texCube = vec3(texC2.x, 1., texC2.y);', + ' } else if (face == 34072) {', // TEXTURE_CUBE_MAP_NEGATIVE_Y + ' texCube = vec3(texC2.x, -1., -texC2.y);', + ' } else if (face == 34073) {', // TEXTURE_CUBE_MAP_POSITIVE_Z + ' texCube = vec3(texC2.x, -texC2.y, 1.);', + ' } else if (face == 34074) {', // TEXTURE_CUBE_MAP_NEGATIVE_Z + ' texCube = vec3(-texC2.x, -texC2.y, -1.);', + ' }', + ' uvec4 data = texture(tex, texCube);', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single cube map signed integer texture. + * @type {string} + */ + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simpleCubeMapIntTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump isamplerCube tex;', + 'uniform highp int face;', + 'in vec2 texCoord;', + 'out vec4 fragData;', + 'void main() {', + // Transform [0, 1] -> [-1, 1] + ' vec2 texC2 = (texCoord * 2.) - 1.;', + // Transform 2d tex coord. to each face of TEXTURE_CUBE_MAP coord. + ' vec3 texCube = vec3(0., 0., 0.);', + ' if (face == 34069) {', // TEXTURE_CUBE_MAP_POSITIVE_X + ' texCube = vec3(1., -texC2.y, -texC2.x);', + ' } else if (face == 34070) {', // TEXTURE_CUBE_MAP_NEGATIVE_X + ' texCube = vec3(-1., -texC2.y, texC2.x);', + ' } else if (face == 34071) {', // TEXTURE_CUBE_MAP_POSITIVE_Y + ' texCube = vec3(texC2.x, 1., texC2.y);', + ' } else if (face == 34072) {', // TEXTURE_CUBE_MAP_NEGATIVE_Y + ' texCube = vec3(texC2.x, -1., -texC2.y);', + ' } else if (face == 34073) {', // TEXTURE_CUBE_MAP_POSITIVE_Z + ' texCube = vec3(texC2.x, -texC2.y, 1.);', + ' } else if (face == 34074) {', // TEXTURE_CUBE_MAP_NEGATIVE_Z + ' texCube = vec3(-texC2.x, -texC2.y, -1.);', + ' }', + ' ivec4 data = texture(tex, texCube);', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 3D texture. + * @type {string} + */ + // Note that the tex coordinate r (the uniform uRCoord) is set to 0.0 by default. + var simple3DTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump sampler3D tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' fragData = vec4(texture(tex, vec3(texCoord, uRCoord)).rgb, 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 3D unsigned integer texture. + * @type {string} + */ + // Note that the tex coordinate r (the uniform uRCoord) is set to 0.0 by default. + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simple3DUintTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump usampler3D tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' uvec4 data = texture(tex, vec3(texCoord, uRCoord));', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 3D signed integer texture. + * @type {string} + */ + // Note that the tex coordinate r (the uniform uRCoord) is set to 0.0 by default. + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simple3DIntTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump isampler3D tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' ivec4 data = texture(tex, vec3(texCoord, uRCoord));', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 2D_ARRAY texture. + * @type {string} + */ + // Note that the first image in the array (selected by the uniform + // uRCoord) is used by default. + var simple2DArrayTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump sampler2DArray tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' fragData = vec4(texture(tex, vec3(texCoord, uRCoord)).rgb, 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 2D_ARRAY unsigned integer texture. + * @type {string} + */ + // Note that the first image in the array (selected by the uniform + // uRCoord) is used by default. + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simple2DArrayUintTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump usampler2DArray tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' uvec4 data = texture(tex, vec3(texCoord, uRCoord));', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + /** + * A fragment shader for a single 2D_ARRAY signed integer texture. + * @type {string} + */ + // Note that the first image in the array (selected by the uniform + // uRCoord) is used by default. + // Note we always output 1.0 for alpha because if the texture does not contain + // alpha channel, sampling returns 1; for RGBA textures, sampling returns [0,255]. + var simple2DArrayIntTextureFragmentShaderES3 = [ + '#version 300 es', + 'precision mediump float;', + 'uniform mediump isampler2DArray tex;', + 'in vec2 texCoord;', + 'uniform float uRCoord;', + 'out vec4 fragData;', + 'void main() {', + ' ivec4 data = texture(tex, vec3(texCoord, uRCoord));', + ' fragData = vec4(float(data[0])/255.0,', + ' float(data[1])/255.0,', + ' float(data[2])/255.0,', + ' 1.0);', + '}'].join('\n'); + + + /** + * Creates a simple texture vertex shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimpleTextureVertexShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simpleTextureVertexShaderES3, gl.VERTEX_SHADER); + }; + + /** + * Creates a simple unsigned integer texture fragment shader. + * Output is scaled by 1/255 to bring the result into normalized float range. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimpleUintTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simpleUintTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple signed integer texture fragment shader. + * Output is scaled by 1/255 to bring the result into normalized float range. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimpleIntTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simpleIntTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple cube map unsigned integer texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimpleCubeMapUintTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simpleCubeMapUintTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple cube map signed integer texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimpleCubeMapIntTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simpleCubeMapIntTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple 3D texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimple3DTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simple3DTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple 3D unsigned integer texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimple3DUintTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simple3DUintTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple 3D signed integer texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimple3DIntTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simple3DIntTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple 2D_ARRAY texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimple2DArrayTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simple2DArrayTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple 2D_ARRAY integer texture fragment shader. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLShader} + */ + var setupSimple2DArrayUintTextureFragmentShader = function(gl) { + return WebGLTestUtils.loadShader(gl, simple2DArrayUintTextureFragmentShaderES3, gl.FRAGMENT_SHADER); + }; + + /** + * Creates a simple unsigned integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimpleUintTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimpleUintTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple signed integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimpleIntTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimpleIntTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple cube map unsigned integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimpleCubeMapUintTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl); + var fs = setupSimpleCubeMapUintTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple cube map signed integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimpleCubeMapIntTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl); + var fs = setupSimpleCubeMapIntTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 3D texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple3DTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple3DTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 3D unsigned integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple3DUintTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple3DUintTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 3D signed integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple3DIntTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple3DIntTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 2D_ARRAY texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple2DArrayTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple2DArrayTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 2D_ARRAY unsigned integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple2DArrayUintTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple2DArrayUintTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a simple 2D_ARRAY signed integer texture program. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {number} opt_positionLocation The attrib location for position. + * @param {number} opt_texcoordLocation The attrib location for texture coords. + * @return {WebGLProgram} + */ + var setupSimple2DArrayIntTextureProgram = function(gl, opt_positionLocation, opt_texcoordLocation) + { + opt_positionLocation = opt_positionLocation || 0; + opt_texcoordLocation = opt_texcoordLocation || 1; + var vs = setupSimpleTextureVertexShader(gl), + fs = setupSimple2DArrayIntTextureFragmentShader(gl); + if (!vs || !fs) { + return null; + } + var program = WebGLTestUtils.setupProgram( + gl, + [vs, fs], + ['vPosition', 'texCoord0'], + [opt_positionLocation, opt_texcoordLocation]); + if (!program) { + gl.deleteShader(fs); + gl.deleteShader(vs); + } + gl.useProgram(program); + return program; + }; + + /** + * Creates a program and buffers for rendering a unsigned integer textured quad. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLProgram} + */ + var setupUintTexturedQuad = function(gl) { + var program = setupSimpleUintTextureProgram(gl); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Creates a program and buffers for rendering a signed integer textured quad. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLProgram} + */ + var setupIntTexturedQuad = function(gl) { + var program = setupSimpleIntTextureProgram(gl); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Creates a program and buffers for rendering a textured quad with + * a cube map unsigned integer texture. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLProgram} + */ + var setupUintTexturedQuadWithCubeMap = function(gl) + { + var program = setupSimpleCubeMapUintTextureProgram(gl); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Creates a program and buffers for rendering a textured quad with + * a cube map signed integer texture. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @return {!WebGLProgram} + */ + var setupIntTexturedQuadWithCubeMap = function(gl) + { + var program = setupSimpleCubeMapIntTextureProgram(gl); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Does the GL internal format represent an unsigned integer format + * texture? + * @return {boolean} + */ + var isUintFormat = function(internalFormat) + { + return (internalFormat == "R8UI" || internalFormat == "RG8UI" || internalFormat == "RGB8UI" || internalFormat == "RGBA8UI" || + internalFormat == "R16UI" || internalFormat == "RG16UI" || internalFormat == "RGB16UI" || internalFormat == "RGBA16UI" || + internalFormat == "R32UI" || internalFormat == "RG32UI" || internalFormat == "RGB32UI" || internalFormat == "RGBA32UI"); + }; + + /** + * Does the GL internal format represent an signed integer format + * texture? + * @return {boolean} + */ + var isIntFormat = function(internalFormat) + { + return (internalFormat == "R8I" || internalFormat == "RG8I" || internalFormat == "RGB8I" || internalFormat == "RGBA8I" || + internalFormat == "R16I" || internalFormat == "RG16I" || internalFormat == "RGB16I" || internalFormat == "RGBA16I" || + internalFormat == "R32I" || internalFormat == "RG32I" || internalFormat == "RGB32I" || internalFormat == "RGBA32I"); + }; + + /** + * Createa a program and buffers for rendering a textured quad for + * tex-image-and-sub-image tests. Handle selection of correct + * program to handle texture format. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {string} internalFormat The internal format for texture to be tested. + */ + var setupTexturedQuad = function(gl, internalFormat) + { + if (isUintFormat(internalFormat)) + return setupUintTexturedQuad(gl); + if (isIntFormat(internalFormat)) + return setupIntTexturedQuad(gl); + return wtu.setupTexturedQuad(gl); + }; + + /** + * Createa a program and buffers for rendering a textured quad with + * a cube map for tex-image-and-sub-image tests. Handle selection of + * correct program to handle texture format. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {string} internalFormat The internal format for texture to be tested. + */ + function setupTexturedQuadWithCubeMap(gl, internalFormat) + { + if (isUintFormat(internalFormat)) + return setupUintTexturedQuadWithCubeMap(gl); + if (isIntFormat(internalFormat)) + return setupIntTexturedQuadWithCubeMap(gl); + return wtu.setupTexturedQuadWithCubeMap(gl); + } + + /** + * Createa a program and buffers for rendering a textured quad with a 3D texture + * for tex-image-and-sub-image tests. Handle selection of correct + * program to handle texture format. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {string} internalFormat The internal format for texture to be tested. + */ + var setupTexturedQuadWith3D = function(gl, internalFormat) + { + var program; + if (isUintFormat(internalFormat)) + program = setupSimple3DUintTextureProgram(gl); + else if (isIntFormat(internalFormat)) + program = setupSimple3DIntTextureProgram(gl); + else + program = setupSimple3DTextureProgram(gl); + var uRCoordLoc = gl.getUniformLocation(program, 'uRCoord'); + gl.uniform1f(uRCoordLoc, 0.0); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Createa a program and buffers for rendering a textured quad with a 2D_ARRAY + * texture for tex-image-and-sub-image tests. Handle selection of correct + * program to handle texture format. + * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use. + * @param {string} internalFormat The internal format for texture to be tested. + */ + var setupTexturedQuadWith2DArray = function(gl, internalFormat) + { + var program; + if (isUintFormat(internalFormat)) + program = setupSimple2DArrayUintTextureProgram(gl); + else if (isIntFormat(internalFormat)) + program = setupSimple2DArrayIntTextureProgram(gl); + else + program = setupSimple2DArrayTextureProgram(gl); + var uRCoordLoc = gl.getUniformLocation(program, 'uRCoord'); + gl.uniform1f(uRCoordLoc, 0.0); + wtu.setupUnitQuad(gl); + return program; + }; + + /** + * Return a list of unpack color spaces to test, supported by the specified + * WebGLRenderingContext. + */ + var unpackColorSpacesToTest = function(gl) + { + if ('unpackColorSpace' in gl) + return ['srgb', 'display-p3']; + else + return [undefined]; + } + + /** + * For each entry in unpackColorSpaces, duplicate all of cases, adding an + * unpackColorSpace key with its value set to that entry to each case. + */ + var crossProductTestCasesWithUnpackColorSpaces = function(testCaseList, unpackColorSpaces) + { + var testCaseWithUnpackColorSpace = function(testCase, colorSpace) + { + return {...testCase, ...{unpackColorSpace:colorSpace}}; + } + var listOfTestCaseLists = unpackColorSpaces.map(colorSpace => + testCaseList.map(testCase => testCaseWithUnpackColorSpace(testCase, colorSpace))); + return listOfTestCaseLists.flat(); + } + + /** + * Given given an internalformat, format, and type, return the tolerance + * that should be used when comparing an input 8-bit value to one that has + * been truncated through the specified formats. + */ + var tolerance = function(internalformat, format, type) { + function typeTolerance(type) { + switch(type) { + case 'UNSIGNED_SHORT_5_6_5': + case 'UNSIGNED_SHORT_5_5_5_1': + return 255 / 31; + case 'UNSIGNED_SHORT_4_4_4_4': + return 255 / 15; + break; + default: + return 1; + } + }; + function formatTolerance(format) { + switch(format) { + case 'RGB565': + case 'RGB5_A1': + return 255/31; + case 'RGBA4': + return 255/15; + default: + return 1; + } + }; + return Math.max(formatTolerance(internalformat), + formatTolerance(format), + typeTolerance(type)); + } + + return { + setupTexturedQuad: setupTexturedQuad, + setupTexturedQuadWithCubeMap: setupTexturedQuadWithCubeMap, + setupTexturedQuadWith3D: setupTexturedQuadWith3D, + setupTexturedQuadWith2DArray: setupTexturedQuadWith2DArray, + unpackColorSpacesToTest: unpackColorSpacesToTest, + crossProductTestCasesWithUnpackColorSpaces: crossProductTestCasesWithUnpackColorSpaces, + tolerance: tolerance + }; + +}()); |