diff options
Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/deqp/framework/common/tcuTexture.js | 3636 |
1 files changed, 3636 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/deqp/framework/common/tcuTexture.js b/dom/canvas/test/webgl-conf/checkout/deqp/framework/common/tcuTexture.js new file mode 100644 index 0000000000..8a3a2ed1d4 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/deqp/framework/common/tcuTexture.js @@ -0,0 +1,3636 @@ +/*------------------------------------------------------------------------- + * drawElements Quality Program OpenGL ES Utilities + * ------------------------------------------------ + * + * Copyright 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +'use strict'; +goog.provide('framework.common.tcuTexture'); +goog.require('framework.common.tcuFloat'); +goog.require('framework.delibs.debase.deMath'); +goog.require('framework.delibs.debase.deString'); +goog.require('framework.delibs.debase.deUtil'); + +goog.scope(function() { + +var tcuTexture = framework.common.tcuTexture; +var deMath = framework.delibs.debase.deMath; +var tcuFloat = framework.common.tcuFloat; +var deString = framework.delibs.debase.deString; +var deUtil = framework.delibs.debase.deUtil; + +var DE_ASSERT = function(x) { + if (!x) + throw new Error('Assert failed'); +}; + +/** + * Texture tcuTexture.channel order + * @enum + */ +tcuTexture.ChannelOrder = { + R: 0, + A: 1, + I: 2, + L: 3, + LA: 4, + RG: 5, + RA: 6, + RGB: 7, + RGBA: 8, + ARGB: 9, + BGRA: 10, + + sRGB: 11, + sRGBA: 12, + + D: 13, + S: 14, + DS: 15 +}; + +/** + * Texture tcuTexture.channel type + * @enum + */ +tcuTexture.ChannelType = { + SNORM_INT8: 0, + SNORM_INT16: 1, + SNORM_INT32: 2, + UNORM_INT8: 3, + UNORM_INT16: 4, + UNORM_INT32: 5, + UNORM_SHORT_565: 6, + UNORM_SHORT_555: 7, + UNORM_SHORT_4444: 8, + UNORM_SHORT_5551: 9, + UNORM_INT_101010: 10, + UNORM_INT_1010102_REV: 11, + UNSIGNED_INT_1010102_REV: 12, + UNSIGNED_INT_11F_11F_10F_REV: 13, + UNSIGNED_INT_999_E5_REV: 14, + UNSIGNED_INT_24_8: 15, + SIGNED_INT8: 16, + SIGNED_INT16: 17, + SIGNED_INT32: 18, + UNSIGNED_INT8: 19, + UNSIGNED_INT16: 20, + UNSIGNED_INT32: 21, + HALF_FLOAT: 22, + FLOAT: 23, + FLOAT_UNSIGNED_INT_24_8_REV: 24 +}; + +/** + * Enums for tcuTexture.TextureChannelClass + * @enum {number} + */ +tcuTexture.TextureChannelClass = { + + SIGNED_FIXED_POINT: 0, + UNSIGNED_FIXED_POINT: 1, + SIGNED_INTEGER: 2, + UNSIGNED_INTEGER: 3, + FLOATING_POINT: 4 +}; + +/** + * @param {?tcuTexture.ChannelType} channelType + * @return {tcuTexture.TextureChannelClass} + */ +tcuTexture.getTextureChannelClass = function(channelType) { + + switch (channelType) { + case tcuTexture.ChannelType.SNORM_INT8: return tcuTexture.TextureChannelClass.SIGNED_FIXED_POINT; + case tcuTexture.ChannelType.SNORM_INT16: return tcuTexture.TextureChannelClass.SIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_INT8: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_INT16: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_SHORT_565: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_SHORT_555: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_SHORT_4444: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_SHORT_5551: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_INT_101010: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: return tcuTexture.TextureChannelClass.UNSIGNED_FIXED_POINT; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: return tcuTexture.TextureChannelClass.UNSIGNED_INTEGER; + case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: return tcuTexture.TextureChannelClass.FLOATING_POINT; + case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: return tcuTexture.TextureChannelClass.FLOATING_POINT; + case tcuTexture.ChannelType.SIGNED_INT8: return tcuTexture.TextureChannelClass.SIGNED_INTEGER; + case tcuTexture.ChannelType.SIGNED_INT16: return tcuTexture.TextureChannelClass.SIGNED_INTEGER; + case tcuTexture.ChannelType.SIGNED_INT32: return tcuTexture.TextureChannelClass.SIGNED_INTEGER; + case tcuTexture.ChannelType.UNSIGNED_INT8: return tcuTexture.TextureChannelClass.UNSIGNED_INTEGER; + case tcuTexture.ChannelType.UNSIGNED_INT16: return tcuTexture.TextureChannelClass.UNSIGNED_INTEGER; + case tcuTexture.ChannelType.UNSIGNED_INT32: return tcuTexture.TextureChannelClass.UNSIGNED_INTEGER; + case tcuTexture.ChannelType.HALF_FLOAT: return tcuTexture.TextureChannelClass.FLOATING_POINT; + case tcuTexture.ChannelType.FLOAT: return tcuTexture.TextureChannelClass.FLOATING_POINT; + default: return /** @type {tcuTexture.TextureChannelClass<number>} */ (Object.keys(tcuTexture.ChannelType).length); + } +}; + +/** + * @param {tcuTexture.TextureFormat} format + */ +tcuTexture.isFixedPointDepthTextureFormat = function(format) { + var channelClass = tcuTexture.getTextureChannelClass(format.type); + + if (format.order == tcuTexture.ChannelOrder.D) { + // depth internal formats cannot be non-normalized integers + return channelClass != tcuTexture.TextureChannelClass.FLOATING_POINT; + } else if (format.order == tcuTexture.ChannelOrder.DS) { + // combined formats have no single channel class, detect format manually + switch (format.type) { + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: return false; + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: return true; + + default: + // unknown format + DE_ASSERT(false); + return true; + } + } + return false; +}; + +/** + * @param {Array<number>} color + * @param {tcuTexture.CompareMode} compare + * @param {number} chanNdx + * @param {number} ref_ + * @param {boolean} isFixedPoint + */ +tcuTexture.execCompare = function(color, compare, chanNdx, ref_, isFixedPoint) { + var clampValues = isFixedPoint; + var cmp = clampValues ? deMath.clamp(color[chanNdx], 0.0, 1.0) : color[chanNdx]; + var ref = clampValues ? deMath.clamp(ref_, 0.0, 1.0) : ref_; + var res = false; + + switch (compare) { + case tcuTexture.CompareMode.COMPAREMODE_LESS: res = ref < cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_LESS_OR_EQUAL: res = ref <= cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_GREATER: res = ref > cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_GREATER_OR_EQUAL: res = ref >= cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_EQUAL: res = ref == cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_NOT_EQUAL: res = ref != cmp; break; + case tcuTexture.CompareMode.COMPAREMODE_ALWAYS: res = true; break; + case tcuTexture.CompareMode.COMPAREMODE_NEVER: res = false; break; + default: + DE_ASSERT(false); + } + + return res ? 1.0 : 0.0; +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + * @param {number} numLevels + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {number} s + * @param {number} t + * @param {number} lod + * @param {Array<number>} offset + */ +tcuTexture.sampleLevelArray2DCompare = function(levels, numLevels, sampler, ref, s, t, lod, offset) { + var magnified = lod <= sampler.lodThreshold; + var filterMode = magnified ? sampler.magFilter : sampler.minFilter; + + switch (filterMode) { + case tcuTexture.FilterMode.NEAREST: return levels[0].sample2DCompare(sampler, filterMode, ref, s, t, offset); + case tcuTexture.FilterMode.LINEAR: return levels[0].sample2DCompare(sampler, filterMode, ref, s, t, offset); + + case tcuTexture.FilterMode.NEAREST_MIPMAP_NEAREST: + case tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST: { + var maxLevel = numLevels - 1; + var level = deMath.clamp(Math.ceil(lod + 0.5) - 1, 0, maxLevel); + var levelFilter = filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + + return levels[level].sample2DCompare(sampler, levelFilter, ref, s, t, offset); + } + + case tcuTexture.FilterMode.NEAREST_MIPMAP_LINEAR: + case tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR: { + var maxLevel = numLevels - 1; + var level0 = deMath.clamp(Math.floor(lod), 0, maxLevel); + var level1 = Math.min(maxLevel, level0 + 1); + var levelFilter = filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + var f = deMath.deFloatFrac(lod); + var t0 = levels[level0].sample2DCompare(sampler, levelFilter, ref, s, t, offset); + var t1 = levels[level1].sample2DCompare(sampler, levelFilter, ref, s, t, offset); + + return t0 * (1.0 - f) + t1 * f; + } + + default: + DE_ASSERT(false); + return 0.0; + } +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {number} u + * @param {number} v + * @param {Array<number>} offset + * @param {boolean} isFixedPointDepthFormat + * @return {number} + */ +tcuTexture.sampleLinear2DCompare = function(access, sampler, ref, u, v, offset, isFixedPointDepthFormat) { + var w = access.getWidth(); + var h = access.getHeight(); + + var x0 = Math.floor(u - 0.5) + offset[0]; + var x1 = x0 + 1; + var y0 = Math.floor(v - 0.5) + offset[1]; + var y1 = y0 + 1; + + var i0 = tcuTexture.wrap(sampler.wrapS, x0, w); + var i1 = tcuTexture.wrap(sampler.wrapS, x1, w); + var j0 = tcuTexture.wrap(sampler.wrapT, y0, h); + var j1 = tcuTexture.wrap(sampler.wrapT, y1, h); + + var a = deMath.deFloatFrac(u - 0.5); + var b = deMath.deFloatFrac(v - 0.5); + + var i0UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i0, 0, w); + var i1UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i1, 0, w); + var j0UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j0, 0, h); + var j1UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j1, 0, h); + + // Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups. + var p00Clr = (i0UseBorder || j0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j0, offset[2]); + var p10Clr = (i1UseBorder || j0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j0, offset[2]); + var p01Clr = (i0UseBorder || j1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j1, offset[2]); + var p11Clr = (i1UseBorder || j1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j1, offset[2]); + + // Execute comparisons. + var p00 = tcuTexture.execCompare(p00Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat); + var p10 = tcuTexture.execCompare(p10Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat); + var p01 = tcuTexture.execCompare(p01Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat); + var p11 = tcuTexture.execCompare(p11Clr, sampler.compare, sampler.compareChannel, ref, isFixedPointDepthFormat); + + // Interpolate. + return (p00 * (1.0 - a) * (1.0 - b)) + + (p10 * (a) * (1.0 - b)) + + (p01 * (1.0 - a) * (b)) + + (p11 * (a) * (b)); +}; + +/** + * Construct texture format + * @param {?tcuTexture.ChannelOrder} order + * @param {?tcuTexture.ChannelType} type + * + * @constructor + */ +tcuTexture.TextureFormat = function(order, type) { + this.order = order; + this.type = type; +}; + +/** + * Compare two formats + * @param {tcuTexture.TextureFormat} format Format to compare with + * @return {boolean} + */ +tcuTexture.TextureFormat.prototype.isEqual = function(format) { + return this.order === format.order && this.type === format.type; +}; + +tcuTexture.TextureFormat.prototype.toString = function() { + return 'TextureFormat(' + deString.enumToString(tcuTexture.ChannelOrder, this.order) + ', ' + + deString.enumToString(tcuTexture.ChannelType, this.type) + ')'; +}; + +/** + * Is format sRGB? + * @return {boolean} + */ +tcuTexture.TextureFormat.prototype.isSRGB = function() { + return this.order === tcuTexture.ChannelOrder.sRGB || this.order === tcuTexture.ChannelOrder.sRGBA; +}; + +tcuTexture.TextureFormat.prototype.getNumStencilBits = function() { + switch (this.order) { + case tcuTexture.ChannelOrder.S: + switch (this.type) { + case tcuTexture.ChannelType.UNSIGNED_INT8: return 8; + case tcuTexture.ChannelType.UNSIGNED_INT16: return 16; + case tcuTexture.ChannelType.UNSIGNED_INT32: return 32; + default: + throw new Error('Wrong type: ' + this.type); + } + + case tcuTexture.ChannelOrder.DS: + switch (this.type) { + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: return 8; + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: return 8; + default: + throw new Error('Wrong type: ' + this.type); + } + + default: + throw new Error('Wrong order: ' + this.order); + } +}; + +/** + * Get TypedArray type that can be used to access texture. + * @param {?tcuTexture.ChannelType} type + * @return TypedArray that supports the tcuTexture.channel type. + */ +tcuTexture.getTypedArray = function(type) { + switch (type) { + case tcuTexture.ChannelType.SNORM_INT8: return Int8Array; + case tcuTexture.ChannelType.SNORM_INT16: return Int16Array; + case tcuTexture.ChannelType.SNORM_INT32: return Int32Array; + case tcuTexture.ChannelType.UNORM_INT8: return Uint8Array; + case tcuTexture.ChannelType.UNORM_INT16: return Uint16Array; + case tcuTexture.ChannelType.UNORM_INT32: return Uint32Array; + case tcuTexture.ChannelType.UNORM_SHORT_565: return Uint16Array; + case tcuTexture.ChannelType.UNORM_SHORT_555: return Uint16Array; + case tcuTexture.ChannelType.UNORM_SHORT_4444: return Uint16Array; + case tcuTexture.ChannelType.UNORM_SHORT_5551: return Uint16Array; + case tcuTexture.ChannelType.UNORM_INT_101010: return Uint32Array; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: return Uint32Array; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: return Uint32Array; + case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: return Uint32Array; + case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: return Uint32Array; + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: return Uint32Array; + case tcuTexture.ChannelType.FLOAT: return Float32Array; + case tcuTexture.ChannelType.SIGNED_INT8: return Int8Array; + case tcuTexture.ChannelType.SIGNED_INT16: return Int16Array; + case tcuTexture.ChannelType.SIGNED_INT32: return Int32Array; + case tcuTexture.ChannelType.UNSIGNED_INT8: return Uint8Array; + case tcuTexture.ChannelType.UNSIGNED_INT16: return Uint16Array; + case tcuTexture.ChannelType.UNSIGNED_INT32: return Uint32Array; + case tcuTexture.ChannelType.HALF_FLOAT: return Uint16Array; + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: return Float32Array; /* this type is a special case */ + } + + throw new Error('Unrecognized type ' + type); +}; + +/** + * @return {number} pixel size in bytes + */ +tcuTexture.TextureFormat.prototype.getPixelSize = function() { + if (this.type == null || this.order == null) { + // Invalid/empty format. + return 0; + } else if (this.type == tcuTexture.ChannelType.UNORM_SHORT_565 || + this.type == tcuTexture.ChannelType.UNORM_SHORT_555 || + this.type == tcuTexture.ChannelType.UNORM_SHORT_4444 || + this.type == tcuTexture.ChannelType.UNORM_SHORT_5551) { + DE_ASSERT(this.order == tcuTexture.ChannelOrder.RGB || this.order == tcuTexture.ChannelOrder.RGBA); + return 2; + } else if (this.type == tcuTexture.ChannelType.UNORM_INT_101010 || + this.type == tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV || + this.type == tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV) { + DE_ASSERT(this.order == tcuTexture.ChannelOrder.RGB); + return 4; + } else if (this.type == tcuTexture.ChannelType.UNORM_INT_1010102_REV || + this.type == tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV) { + DE_ASSERT(this.order == tcuTexture.ChannelOrder.RGBA); + return 4; + } else if (this.type == tcuTexture.ChannelType.UNSIGNED_INT_24_8) { + DE_ASSERT(this.order == tcuTexture.ChannelOrder.D || this.order == tcuTexture.ChannelOrder.DS); + return 4; + } else if (this.type == tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV) { + DE_ASSERT(this.order == tcuTexture.ChannelOrder.DS); + return 8; + } else { + var numChannels; + var channelSize; + + switch (this.order) { + case tcuTexture.ChannelOrder.R: numChannels = 1; break; + case tcuTexture.ChannelOrder.A: numChannels = 1; break; + case tcuTexture.ChannelOrder.I: numChannels = 1; break; + case tcuTexture.ChannelOrder.L: numChannels = 1; break; + case tcuTexture.ChannelOrder.LA: numChannels = 2; break; + case tcuTexture.ChannelOrder.RG: numChannels = 2; break; + case tcuTexture.ChannelOrder.RA: numChannels = 2; break; + case tcuTexture.ChannelOrder.RGB: numChannels = 3; break; + case tcuTexture.ChannelOrder.RGBA: numChannels = 4; break; + case tcuTexture.ChannelOrder.ARGB: numChannels = 4; break; + case tcuTexture.ChannelOrder.BGRA: numChannels = 4; break; + case tcuTexture.ChannelOrder.sRGB: numChannels = 3; break; + case tcuTexture.ChannelOrder.sRGBA: numChannels = 4; break; + case tcuTexture.ChannelOrder.D: numChannels = 1; break; + case tcuTexture.ChannelOrder.S: numChannels = 1; break; + case tcuTexture.ChannelOrder.DS: numChannels = 2; break; + default: DE_ASSERT(false); + } + + switch (this.type) { + case tcuTexture.ChannelType.SNORM_INT8: channelSize = 1; break; + case tcuTexture.ChannelType.SNORM_INT16: channelSize = 2; break; + case tcuTexture.ChannelType.SNORM_INT32: channelSize = 4; break; + case tcuTexture.ChannelType.UNORM_INT8: channelSize = 1; break; + case tcuTexture.ChannelType.UNORM_INT16: channelSize = 2; break; + case tcuTexture.ChannelType.UNORM_INT32: channelSize = 4; break; + case tcuTexture.ChannelType.SIGNED_INT8: channelSize = 1; break; + case tcuTexture.ChannelType.SIGNED_INT16: channelSize = 2; break; + case tcuTexture.ChannelType.SIGNED_INT32: channelSize = 4; break; + case tcuTexture.ChannelType.UNSIGNED_INT8: channelSize = 1; break; + case tcuTexture.ChannelType.UNSIGNED_INT16: channelSize = 2; break; + case tcuTexture.ChannelType.UNSIGNED_INT32: channelSize = 4; break; + case tcuTexture.ChannelType.HALF_FLOAT: channelSize = 2; break; + case tcuTexture.ChannelType.FLOAT: channelSize = 4; break; + default: DE_ASSERT(false); + } + + return numChannels * channelSize; + } +}; + +/** + * @enum + */ +tcuTexture.CubeFace = { + CUBEFACE_NEGATIVE_X: 0, + CUBEFACE_POSITIVE_X: 1, + CUBEFACE_NEGATIVE_Y: 2, + CUBEFACE_POSITIVE_Y: 3, + CUBEFACE_NEGATIVE_Z: 4, + CUBEFACE_POSITIVE_Z: 5 +}; + +/** + * Renamed from ArrayBuffer due to name clash + * Wraps ArrayBuffer. + * @constructor + * @param {number=} numElements + */ +tcuTexture.DeqpArrayBuffer = function(numElements) { + if (numElements) + this.m_ptr = new ArrayBuffer(numElements); +}; + +/** + * Set array size + * @param {number} numElements Size in bytes + */ +tcuTexture.DeqpArrayBuffer.prototype.setStorage = function(numElements) { + this.m_ptr = new ArrayBuffer(numElements); +}; + +/** + * @return {number} Buffer size + */ +tcuTexture.DeqpArrayBuffer.prototype.size = function() { + if (this.m_ptr) + return this.m_ptr.byteLength; + + return 0; +}; + +/** + * Is the buffer empty (zero size)? + * @return {boolean} + */ +tcuTexture.DeqpArrayBuffer.prototype.empty = function() { + if (!this.m_ptr) + return true; + return this.size() == 0; +}; + +/** + * @enum + * The values are negative to avoid conflict with channels 0 - 3 + */ +tcuTexture.channel = { + ZERO: -1, + ONE: -2 +}; + +/** + * @param {tcuTexture.ChannelOrder} order + * @return {Array<Number|tcuTexture.channel>} + */ +tcuTexture.getChannelReadMap = function(order) { + switch (order) { + /*static const Channel INV[] = { tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ONE }; */ + + case tcuTexture.ChannelOrder.R: return [0, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.A: return [tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, 0]; + case tcuTexture.ChannelOrder.I: return [0, 0, 0, 0]; + case tcuTexture.ChannelOrder.L: return [0, 0, 0, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.LA: return [0, 0, 0, 1]; + case tcuTexture.ChannelOrder.RG: return [0, 1, tcuTexture.channel.ZERO, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.RA: return [0, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, 1]; + case tcuTexture.ChannelOrder.RGB: return [0, 1, 2, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.RGBA: return [0, 1, 2, 3]; + case tcuTexture.ChannelOrder.BGRA: return [2, 1, 0, 3]; + case tcuTexture.ChannelOrder.ARGB: return [1, 2, 3, 0]; + case tcuTexture.ChannelOrder.sRGB: return [0, 1, 2, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.sRGBA: return [0, 1, 2, 3]; + case tcuTexture.ChannelOrder.D: return [0, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ONE]; + case tcuTexture.ChannelOrder.S: return [tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, 0]; + case tcuTexture.ChannelOrder.DS: return [0, tcuTexture.channel.ZERO, tcuTexture.channel.ZERO, 1]; + } + + throw new Error('Unrecognized order ' + order); +}; + +/** + * @param {tcuTexture.ChannelOrder} order + * @return {Array<number>} + */ +tcuTexture.getChannelWriteMap = function(order) { + switch (order) { + case tcuTexture.ChannelOrder.R: return [0]; + case tcuTexture.ChannelOrder.A: return [3]; + case tcuTexture.ChannelOrder.I: return [0]; + case tcuTexture.ChannelOrder.L: return [0]; + case tcuTexture.ChannelOrder.LA: return [0, 3]; + case tcuTexture.ChannelOrder.RG: return [0, 1]; + case tcuTexture.ChannelOrder.RA: return [0, 3]; + case tcuTexture.ChannelOrder.RGB: return [0, 1, 2]; + case tcuTexture.ChannelOrder.RGBA: return [0, 1, 2, 3]; + case tcuTexture.ChannelOrder.ARGB: return [3, 0, 1, 2]; + case tcuTexture.ChannelOrder.BGRA: return [2, 1, 0, 3]; + case tcuTexture.ChannelOrder.sRGB: return [0, 1, 2]; + case tcuTexture.ChannelOrder.sRGBA: return [0, 1, 2, 3]; + case tcuTexture.ChannelOrder.D: return [0]; + case tcuTexture.ChannelOrder.S: return [3]; + case tcuTexture.ChannelOrder.DS: return [0, 3]; + } + throw new Error('Unrecognized order ' + order); +}; + +/** + * @param {tcuTexture.ChannelType} type + * @return {number} + */ +tcuTexture.getChannelSize = function(type) { + switch (type) { + case tcuTexture.ChannelType.SNORM_INT8: return 1; + case tcuTexture.ChannelType.SNORM_INT16: return 2; + case tcuTexture.ChannelType.SNORM_INT32: return 4; + case tcuTexture.ChannelType.UNORM_INT8: return 1; + case tcuTexture.ChannelType.UNORM_INT16: return 2; + case tcuTexture.ChannelType.UNORM_INT32: return 4; + case tcuTexture.ChannelType.SIGNED_INT8: return 1; + case tcuTexture.ChannelType.SIGNED_INT16: return 2; + case tcuTexture.ChannelType.SIGNED_INT32: return 4; + case tcuTexture.ChannelType.UNSIGNED_INT8: return 1; + case tcuTexture.ChannelType.UNSIGNED_INT16: return 2; + case tcuTexture.ChannelType.UNSIGNED_INT32: return 4; + case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: return 4; + case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: return 4; + case tcuTexture.ChannelType.HALF_FLOAT: return 2; + case tcuTexture.ChannelType.FLOAT: return 4; + + } + throw new Error('Unrecognized type ' + deString.enumToString(tcuTexture.ChannelType, type)); +}; + +/** + * @param {number} src Source value + * @param {number} bits Source value size in bits + * @return {number} Normalized value + */ +tcuTexture.channelToNormFloat = function(src, bits) { + var maxVal = (1 << bits) - 1; + return src / maxVal; +}; + +/** + * @param {number} value Source value + * @param {tcuTexture.ChannelType} type + * @return {number} Source value converted to float + */ +tcuTexture.channelToFloat = function(value, type) { + switch (type) { + case tcuTexture.ChannelType.SNORM_INT8: return Math.max(-1, value / 127); + case tcuTexture.ChannelType.SNORM_INT16: return Math.max(-1, value / 32767); + case tcuTexture.ChannelType.SNORM_INT32: return Math.max(-1, value / 2147483647); + case tcuTexture.ChannelType.UNORM_INT8: return value / 255; + case tcuTexture.ChannelType.UNORM_INT16: return value / 65535; + case tcuTexture.ChannelType.UNORM_INT32: return value / 4294967295; + case tcuTexture.ChannelType.SIGNED_INT8: return value; + case tcuTexture.ChannelType.SIGNED_INT16: return value; + case tcuTexture.ChannelType.SIGNED_INT32: return value; + case tcuTexture.ChannelType.UNSIGNED_INT8: return value; + case tcuTexture.ChannelType.UNSIGNED_INT16: return value; + case tcuTexture.ChannelType.UNSIGNED_INT32: return value; + case tcuTexture.ChannelType.HALF_FLOAT: return tcuFloat.halfFloatToNumber(value); + case tcuTexture.ChannelType.FLOAT: return value; + } + throw new Error('Unrecognized tcuTexture.channel type ' + type); +}; + +/** + * @param {number} value Source value + * @param {tcuTexture.ChannelType} type + * @return {number} Source value converted to int + */ +tcuTexture.channelToInt = function(value, type) { + switch (type) { + case tcuTexture.ChannelType.HALF_FLOAT: return Math.round(tcuFloat.halfFloatToNumber(value)); + case tcuTexture.ChannelType.FLOAT: return Math.round(value); + default: + return value; + } +}; + +/** + * @param {tcuTexture.ChannelOrder} order + * @return {number} + */ +tcuTexture.getNumUsedChannels = function(order) { + switch (order) { + case tcuTexture.ChannelOrder.R: return 1; + case tcuTexture.ChannelOrder.A: return 1; + case tcuTexture.ChannelOrder.I: return 1; + case tcuTexture.ChannelOrder.L: return 1; + case tcuTexture.ChannelOrder.LA: return 2; + case tcuTexture.ChannelOrder.RG: return 2; + case tcuTexture.ChannelOrder.RA: return 2; + case tcuTexture.ChannelOrder.RGB: return 3; + case tcuTexture.ChannelOrder.RGBA: return 4; + case tcuTexture.ChannelOrder.ARGB: return 4; + case tcuTexture.ChannelOrder.BGRA: return 4; + case tcuTexture.ChannelOrder.sRGB: return 3; + case tcuTexture.ChannelOrder.sRGBA: return 4; + case tcuTexture.ChannelOrder.D: return 1; + case tcuTexture.ChannelOrder.S: return 1; + case tcuTexture.ChannelOrder.DS: return 2; + } + throw new Error('Unrecognized tcuTexture.channel order ' + order); +}; + +/** + * @enum + */ +tcuTexture.WrapMode = { + CLAMP_TO_EDGE: 0, //! Clamp to edge + CLAMP_TO_BORDER: 1, //! Use border color at edge + REPEAT_GL: 2, //! Repeat with OpenGL semantics + REPEAT_CL: 3, //! Repeat with OpenCL semantics + MIRRORED_REPEAT_GL: 4, //! Mirrored repeat with OpenGL semantics + MIRRORED_REPEAT_CL: 5 //! Mirrored repeat with OpenCL semantics +}; + +/** + * @enum + */ +tcuTexture.FilterMode = { + NEAREST: 0, + LINEAR: 1, + + NEAREST_MIPMAP_NEAREST: 2, + NEAREST_MIPMAP_LINEAR: 3, + LINEAR_MIPMAP_NEAREST: 4, + LINEAR_MIPMAP_LINEAR: 5 +}; + +/** + * @enum + */ +tcuTexture.CompareMode = { + COMPAREMODE_NONE: 0, + COMPAREMODE_LESS: 1, + COMPAREMODE_LESS_OR_EQUAL: 2, + COMPAREMODE_GREATER: 3, + COMPAREMODE_GREATER_OR_EQUAL: 4, + COMPAREMODE_EQUAL: 5, + COMPAREMODE_NOT_EQUAL: 6, + COMPAREMODE_ALWAYS: 7, + COMPAREMODE_NEVER: 8 +}; + +/** + * @constructor + * @param {!tcuTexture.WrapMode} wrapS + * @param {!tcuTexture.WrapMode} wrapT + * @param {!tcuTexture.WrapMode} wrapR + * @param {!tcuTexture.FilterMode} minFilter + * @param {!tcuTexture.FilterMode} magFilter + * @param {number=} lodThreshold + * @param {boolean=} normalizedCoords + * @param {tcuTexture.CompareMode=} compare + * @param {number=} compareChannel + * @param {Array<number>=} borderColor + * @param {boolean=} seamlessCubeMap + */ +tcuTexture.Sampler = function(wrapS, wrapT, wrapR, minFilter, magFilter, lodThreshold, normalizedCoords, compare, compareChannel, borderColor, seamlessCubeMap) { + /** @type {!tcuTexture.WrapMode} */ this.wrapS = wrapS; + /** @type {!tcuTexture.WrapMode} */ this.wrapT = wrapT; + /** @type {!tcuTexture.WrapMode} */ this.wrapR = wrapR; + /** @type {!tcuTexture.FilterMode} */ this.minFilter = minFilter; + /** @type {!tcuTexture.FilterMode} */ this.magFilter = magFilter; + this.lodThreshold = lodThreshold || 0; + this.normalizedCoords = normalizedCoords === undefined ? true : normalizedCoords; + /** @type {tcuTexture.CompareMode} */ this.compare = compare || tcuTexture.CompareMode.COMPAREMODE_NONE; + this.compareChannel = compareChannel || 0; + this.borderColor = borderColor || [0, 0, 0, 0]; + this.seamlessCubeMap = seamlessCubeMap || false; +}; + +/** + * Special unnormalization for REPEAT_CL and MIRRORED_REPEAT_CL tcuTexture.wrap modes; otherwise ordinary unnormalization. + * @param {tcuTexture.WrapMode} mode + * @param {number} c Value to tcuTexture.unnormalize + * @param {number} size Unnormalized type size (integer) + * @return {number} + */ +tcuTexture.unnormalize = function(mode, c, size) { + switch (mode) { + case tcuTexture.WrapMode.CLAMP_TO_EDGE: + case tcuTexture.WrapMode.CLAMP_TO_BORDER: + case tcuTexture.WrapMode.REPEAT_GL: + case tcuTexture.WrapMode.MIRRORED_REPEAT_GL: // Fall-through (ordinary case). + return size * c; + + case tcuTexture.WrapMode.REPEAT_CL: + return size * (c - Math.floor(c)); + + case tcuTexture.WrapMode.MIRRORED_REPEAT_CL: + return size * Math.abs(c - 2 * deMath.rint(0.5 * c)); + } + throw new Error('Unrecognized tcuTexture.wrap mode ' + mode); +}; + +/** + * @param {tcuTexture.WrapMode} mode + * @param {number} c Source value (integer) + * @param {number} size Type size (integer) + * @return {number} + */ +tcuTexture.wrap = function(mode, c, size) { + switch (mode) { + case tcuTexture.WrapMode.CLAMP_TO_BORDER: + return deMath.clamp(c, -1, size); + + case tcuTexture.WrapMode.CLAMP_TO_EDGE: + return deMath.clamp(c, 0, size - 1); + + case tcuTexture.WrapMode.REPEAT_GL: + return deMath.imod(c, size); + + case tcuTexture.WrapMode.REPEAT_CL: + return deMath.imod(c, size); + + case tcuTexture.WrapMode.MIRRORED_REPEAT_GL: + return (size - 1) - deMath.mirror(deMath.imod(c, 2 * size) - size); + + case tcuTexture.WrapMode.MIRRORED_REPEAT_CL: + return deMath.clamp(c, 0, size - 1); // \note Actual mirroring done already in unnormalization function. + } + throw new Error('Unrecognized tcuTexture.wrap mode ' + mode); +}; + +/** + * @param {number} cs + * @return {number} + */ +tcuTexture.sRGBChannelToLinear = function(cs) { + if (cs <= 0.04045) + return cs / 12.92; + else + return Math.pow((cs + 0.055) / 1.055, 2.4); +}; + +/** + * Convert sRGB to linear colorspace + * @param {Array<number>} cs Vec4 + * @return {Array<number>} Vec4 + */ +tcuTexture.sRGBToLinear = function(cs) { + return [ + tcuTexture.sRGBChannelToLinear(cs[0]), + tcuTexture.sRGBChannelToLinear(cs[1]), + tcuTexture.sRGBChannelToLinear(cs[2]), + cs[3] + ]; +}; + +/** + * Texel tcuTexture.lookup with color conversion. + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {number} i + * @param {number} j + * @param {number} k + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.lookup = function(access, i, j, k) { + var p = access.getPixel(i, j, k); + return access.getFormat().isSRGB() ? tcuTexture.sRGBToLinear(p) : p; +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {tcuTexture.Sampler} sampler + * @param {number} u + * @param {number} v + * @param {(number|Array<number>)} depthOrOffset depth (int) or offset (ivec3) + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleLinear2D = function(access, sampler, u, v, depthOrOffset) { + /** @type {number} */ var xOffset = 0; + /** @type {number} */ var yOffset = 0; + /** @type {number} */ var value; + if (Array.isArray(depthOrOffset)) { + xOffset = depthOrOffset[0]; + yOffset = depthOrOffset[1]; + value = depthOrOffset[2]; + } else { + value = /** @type {number} */ (depthOrOffset); + } + + /** + * @param {Array<number>} p00 + * @param {Array<number>} p10 + * @param {Array<number>} p01 + * @param {Array<number>} p11 + * @param {number} a + * @param {number} b + */ + var interpolateQuad = function(p00, p10, p01, p11, a, b) { + var s00 = (1 - a) * (1 - b); + var s10 = a * (1 - b); + var s01 = (1 - a) * b; + var s11 = a * b; + + return [ + (p00[0] * s00) + (p10[0] * s10) + (p01[0] * s01) + (p11[0] * s11), + (p00[1] * s00) + (p10[1] * s10) + (p01[1] * s01) + (p11[1] * s11), + (p00[2] * s00) + (p10[2] * s10) + (p01[2] * s01) + (p11[2] * s11), + (p00[3] * s00) + (p10[3] * s10) + (p01[3] * s01) + (p11[3] * s11) + ]; + }; + + var w = access.getWidth(); + var h = access.getHeight(); + + var x0 = Math.floor(u - 0.5) + xOffset; + var x1 = x0 + 1; + var y0 = Math.floor(v - 0.5) + yOffset; + var y1 = y0 + 1; + + var i0 = tcuTexture.wrap(sampler.wrapS, x0, w); + var i1 = tcuTexture.wrap(sampler.wrapS, x1, w); + var j0 = tcuTexture.wrap(sampler.wrapT, y0, h); + var j1 = tcuTexture.wrap(sampler.wrapT, y1, h); + + var a = deMath.deFloatFrac(u - 0.5); + var b = deMath.deFloatFrac(v - 0.5); + + var i0UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i0, 0, w); + var i1UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i1, 0, w); + var j0UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j0, 0, h); + var j1UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j1, 0, h); + + // Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups. + var p00 = (i0UseBorder || j0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j0, value); + var p10 = (i1UseBorder || j0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j0, value); + var p01 = (i0UseBorder || j1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j1, value); + var p11 = (i1UseBorder || j1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j1, value); + + // Interpolate. + return interpolateQuad(p00, p10, p01, p11, a, b); +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {tcuTexture.Sampler} sampler + * @param {number} u + * @param {number} v + * @param {number} w + * @param {Array<number>=} offset + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleLinear3D = function(access, sampler, u, v, w, offset) { + /** + * @param {Array<number>} p000 + * @param {Array<number>} p100 + * @param {Array<number>} p010 + * @param {Array<number>} p110 + * @param {Array<number>} p001 + * @param {Array<number>} p101 + * @param {Array<number>} p011 + * @param {Array<number>} p111 + * @param {number} a + * @param {number} b + * @param {number} c + */ + var interpolateCube = function(p000, p100, p010, p110, p001, p101, p011, p111, a, b, c) { + var s000 = (1 - a) * (1 - b) * (1 - c); + var s100 = a * (1 - b) * (1 - c); + var s010 = (1 - a) * b * (1 - c); + var s110 = a * b * (1 - c); + var s001 = (1 - a) * (1 - b) * c; + var s101 = a * (1 - b) * c; + var s011 = (1 - a) * b * c; + var s111 = a * b * c; + + return [ + (p000[0] * s000) + (p100[0] * s100) + (p010[0] * s010) + (p110[0] * s110) + (p001[0] * s001) + (p101[0] * s101) + (p011[0] * s011) + (p111[0] * s111), + (p000[1] * s000) + (p100[1] * s100) + (p010[1] * s010) + (p110[1] * s110) + (p001[1] * s001) + (p101[1] * s101) + (p011[1] * s011) + (p111[1] * s111), + (p000[2] * s000) + (p100[2] * s100) + (p010[2] * s010) + (p110[2] * s110) + (p001[2] * s001) + (p101[2] * s101) + (p011[2] * s011) + (p111[2] * s111), + (p000[3] * s000) + (p100[3] * s100) + (p010[3] * s010) + (p110[3] * s110) + (p001[3] * s001) + (p101[3] * s101) + (p011[3] * s011) + (p111[3] * s111) + ]; + }; + + var width = access.getWidth(); + var height = access.getHeight(); + var depth = access.getDepth(); + + /** @type {number} */ var xOffset = 0; + /** @type {number} */ var yOffset = 0; + /** @type {number} */ var zOffset = 0; + + if (offset !== undefined && offset.length === 3) { + xOffset = offset[0]; + yOffset = offset[1]; + zOffset = offset[2]; + } + + var x0 = Math.floor(u - 0.5) + xOffset; + var x1 = x0 + 1; + var y0 = Math.floor(v - 0.5) + yOffset; + var y1 = y0 + 1; + var z0 = Math.floor(w - 0.5) + zOffset; + var z1 = z0 + 1; + + var i0 = tcuTexture.wrap(sampler.wrapS, x0, width); + var i1 = tcuTexture.wrap(sampler.wrapS, x1, width); + var j0 = tcuTexture.wrap(sampler.wrapT, y0, height); + var j1 = tcuTexture.wrap(sampler.wrapT, y1, height); + var k0 = tcuTexture.wrap(sampler.wrapR, z0, depth); + var k1 = tcuTexture.wrap(sampler.wrapR, z1, depth); + + var a = deMath.deFloatFrac(u - 0.5); + var b = deMath.deFloatFrac(v - 0.5); + var c = deMath.deFloatFrac(w - 0.5); + + var i0UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i0, 0, width); + var i1UseBorder = sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(i1, 0, width); + var j0UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j0, 0, height); + var j1UseBorder = sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(j1, 0, height); + var k0UseBorder = sampler.wrapR == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(k0, 0, depth); + var k1UseBorder = sampler.wrapR == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(k1, 0, depth); + + // Border color for out-of-range coordinates if using CLAMP_TO_BORDER, otherwise execute lookups. + var p000 = (i0UseBorder || j0UseBorder || k0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j0, k0); + var p100 = (i1UseBorder || j0UseBorder || k0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j0, k0); + var p010 = (i0UseBorder || j1UseBorder || k0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j1, k0); + var p110 = (i1UseBorder || j1UseBorder || k0UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j1, k0); + var p001 = (i0UseBorder || j0UseBorder || k1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j0, k1); + var p101 = (i1UseBorder || j0UseBorder || k1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j0, k1); + var p011 = (i0UseBorder || j1UseBorder || k1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i0, j1, k1); + var p111 = (i1UseBorder || j1UseBorder || k1UseBorder) ? sampler.borderColor : tcuTexture.lookup(access, i1, j1, k1); + + // Interpolate. + return interpolateCube(p000, p100, p010, p110, p001, p101, p011, p111, a, b, c); +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {tcuTexture.Sampler} sampler + * @param {number} u + * @param {number} v + * @param {(number|Array<number>)} depthOrOffset depth (integer) or offset (ivec3) + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleNearest2D = function(access, sampler, u, v, depthOrOffset) { + /** @type {number} */ var xOffset = 0; + /** @type {number} */ var yOffset = 0; + /** @type {number} */ var value; + if (Array.isArray(depthOrOffset)) { + xOffset = depthOrOffset[0]; + yOffset = depthOrOffset[1]; + value = depthOrOffset[2]; + } else { + value = /** @type {number} */ (depthOrOffset); + } + + var width = access.getWidth(); + var height = access.getHeight(); + + var x = Math.floor(u) + xOffset; + var y = Math.floor(v) + yOffset; + + // Check for CLAMP_TO_BORDER. + if ((sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(x, 0, width)) || + (sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(y, 0, height))) + return sampler.borderColor; + + var i = tcuTexture.wrap(sampler.wrapS, x, width); + var j = tcuTexture.wrap(sampler.wrapT, y, height); + + return tcuTexture.lookup(access, i, j, value); +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} access + * @param {tcuTexture.Sampler} sampler + * @param {number} u + * @param {number} v + * @param {number} w + * @param {Array<number>=} offset + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleNearest3D = function(access, sampler, u, v, w, offset) { + var width = access.getWidth(); + var height = access.getHeight(); + var depth = access.getDepth(); + /** @type {number} */ var xOffset = 0; + /** @type {number} */ var yOffset = 0; + /** @type {number} */ var zOffset = 0; + + if (offset !== undefined && offset.length === 3) { + xOffset = offset[0]; + yOffset = offset[1]; + zOffset = offset[2]; + } + + var x = Math.floor(u) + xOffset; + var y = Math.floor(v) + yOffset; + var z = Math.floor(w) + zOffset; + + // Check for CLAMP_TO_BORDER. + if ((sampler.wrapS == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(x, 0, width)) || + (sampler.wrapT == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(y, 0, height)) || + (sampler.wrapR == tcuTexture.WrapMode.CLAMP_TO_BORDER && !deMath.deInBounds32(z, 0, depth))) + return sampler.borderColor; + + var i = tcuTexture.wrap(sampler.wrapS, x, width); + var j = tcuTexture.wrap(sampler.wrapT, y, height); + var k = tcuTexture.wrap(sampler.wrapR, z, depth); + + return tcuTexture.lookup(access, i, j, k); +}; + +/** + * @param {Array<number>} color Vec4 color + * @return {number} The color in packed 32 bit format + */ +tcuTexture.packRGB999E5 = function(color) { + /** @const */ var mBits = 9; + /** @const */ var eBits = 5; + /** @const */ var eBias = 15; + /** @const */ var eMax = (1 << eBits) - 1; + /** @const */ var maxVal = (((1 << mBits) - 1) * (1 << (eMax - eBias))) / (1 << mBits); + + var rc = deMath.clamp(color[0], 0, maxVal); + var gc = deMath.clamp(color[1], 0, maxVal); + var bc = deMath.clamp(color[2], 0, maxVal); + var maxc = Math.max(rc, gc, bc); + var expp = Math.max(-eBias - 1, Math.floor(Math.log2(maxc))) + 1 + eBias; + var e = Math.pow(2, expp - eBias - mBits); + var maxs = Math.floor(maxc / e + 0.5); + + var exps = maxs == (1 << mBits) ? expp + 1 : expp; + var rs = deMath.clamp(Math.floor(rc / e + 0.5), 0, (1 << 9) - 1); + var gs = deMath.clamp(Math.floor(gc / e + 0.5), 0, (1 << 9) - 1); + var bs = deMath.clamp(Math.floor(bc / e + 0.5), 0, (1 << 9) - 1); + + DE_ASSERT((exps & ~((1 << 5) - 1)) == 0); + DE_ASSERT((rs & ~((1 << 9) - 1)) == 0); + DE_ASSERT((gs & ~((1 << 9) - 1)) == 0); + DE_ASSERT((bs & ~((1 << 9) - 1)) == 0); + + return rs | (gs << 9) | (bs << 18) | (exps << 27); +}; + +/** + * @param {number} color Color in packed 32 bit format + * @return {Array<number>} The color in unpacked format + */ +tcuTexture.unpackRGB999E5 = function(color) { + var mBits = 9; + var eBias = 15; + + var exp = (color >> 27) & ((1 << 5) - 1); + var bs = (color >> 18) & ((1 << 9) - 1); + var gs = (color >> 9) & ((1 << 9) - 1); + var rs = color & ((1 << 9) - 1); + + var e = Math.pow(2, (exp - eBias - mBits)); + var r = rs * e; + var g = gs * e; + var b = bs * e; + + return [r, g, b, 1]; +}; + +/** + * \brief Read-only pixel data access + * + * tcuTexture.ConstPixelBufferAccess encapsulates pixel data pointer along with + * format and layout information. It can be used for read-only access + * to arbitrary pixel buffers. + * + * Access objects are like iterators or pointers. They can be passed around + * as values and are valid as long as the storage doesn't change. + * @constructor + */ +tcuTexture.ConstPixelBufferAccess = function(descriptor) { + if (descriptor) { + this.m_offset = descriptor.offset || 0; + this.m_format = descriptor.format || new tcuTexture.TextureFormat(tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.FLOAT); + this.m_width = descriptor.width; + this.m_height = descriptor.height; + if (descriptor.depth) + this.m_depth = descriptor.depth; + else + this.m_depth = 1; + this.m_data = descriptor.data; + if (descriptor.rowPitch) + this.m_rowPitch = descriptor.rowPitch; + else + this.m_rowPitch = this.m_width * this.m_format.getPixelSize(); + + if (descriptor.slicePitch) + this.m_slicePitch = descriptor.slicePitch; + else + this.m_slicePitch = this.m_rowPitch * this.m_height; + + if (this.m_format.isEqual(new tcuTexture.TextureFormat( + tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.UNORM_INT8))) + this.m_rgba8View = new tcuTexture.RGBA8View(this); + else if (this.m_format.isEqual(new tcuTexture.TextureFormat( + tcuTexture.ChannelOrder.RGB, tcuTexture.ChannelType.UNORM_INT8))) + this.m_rgb8View = new tcuTexture.RGBA8View(this); + + } + + this.m_dataPtrType = null; + this.m_dataPtr = null; +}; + +tcuTexture.ConstPixelBufferAccess.prototype.toString = function() { + var str = 'BufferAccess(format: ' + this.m_format + + ', width: ' + this.m_width + + ', height: ' + this.m_height; + if (this.m_depth > 1) + str += ', depth: ' + this.m_depth; + if (this.m_rowPitch != this.m_width * this.m_format.getPixelSize()) + str += ', row pitch: ' + this.m_rowPitch; + if (this.m_slicePitch != this.m_rowPitch * this.m_height) + str += ', slice pitch: ' + this.m_slicePitch; + if (this.m_offset > 0) + str += ', offset: ' + this.m_offset; + str += ')'; + return str; +}; + +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getDataSize = function() { return this.m_depth * this.m_slicePitch; }; +tcuTexture.ConstPixelBufferAccess.prototype.isEmpty = function() { return this.m_width == 0 || this.m_height == 0 || this.m_depth == 0; }; +/** @return {goog.TypedArray} */ +tcuTexture.ConstPixelBufferAccess.prototype.getDataPtr = function() { + if (this.m_dataPtrType != this.m_format.type) { + this.m_dataPtrType = this.m_format.type; + var arrayType = tcuTexture.getTypedArray(this.m_format.type); + this.m_dataPtr = new arrayType(this.m_data, this.m_offset); + } + return this.m_dataPtr; +}; +/** @return {ArrayBuffer} */ +tcuTexture.ConstPixelBufferAccess.prototype.getBuffer = function() { + return this.m_data; +}; +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getRowPitch = function() { return this.m_rowPitch; }; +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getWidth = function() { return this.m_width; }; +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getHeight = function() { return this.m_height; }; +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getDepth = function() { return this.m_depth; }; +/** @return {number} */ +tcuTexture.ConstPixelBufferAccess.prototype.getSlicePitch = function() { return this.m_slicePitch; }; +/** @return {tcuTexture.TextureFormat} */ +tcuTexture.ConstPixelBufferAccess.prototype.getFormat = function() { return this.m_format; }; + +/** + * @param {number} x + * @param {number} y + * @param {number=} z + * @return {number} stencil value + */ +tcuTexture.ConstPixelBufferAccess.prototype.getPixStencil = function(x, y, z) { + z = z || 0; + + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + case tcuTexture.ChannelOrder.S: return (pixelPtr[pixelPtrOffset] >> 8) & 0xff; + case tcuTexture.ChannelOrder.DS: return pixelPtr[pixelPtrOffset] & 0xff; + + default: + DE_ASSERT(false); + return 0; + } + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + var u32array = new Uint32Array(this.m_data, offset + this.m_offset + 4, 1); + return u32array[0] & 0xff; + + default: { + if (this.m_format.order == tcuTexture.ChannelOrder.S) + return tcuTexture.channelToInt(pixelPtr[pixelPtrOffset], this.m_format.type); + else { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + var stencilChannelIndex = 3; + return tcuTexture.channelToInt(pixelPtr[stencilChannelIndex + pixelPtrOffset], this.m_format.type); + } + } + } +}; + +/** + * @param {number} x + * @param {number} y + * @param {number=} z + * @return {number} + */ +tcuTexture.ConstPixelBufferAccess.prototype.getPixDepth = function(x, y, z) { + if (z == null) + z = 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + var ub = function(pixel, offset, count) { + return (pixel >> offset) & ((1 << count) - 1); + }; + var nb = function(pixel, offset, count) { + return tcuTexture.channelToNormFloat(ub(pixel, offset, count), count); + }; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + case tcuTexture.ChannelOrder.D: // fall-through + case tcuTexture.ChannelOrder.DS: + return nb(pixelPtr[pixelPtrOffset], 8, 24); + default: + throw new Error('Unsupported tcuTexture.channel order ' + this.m_format.order); + } + break; + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + return pixelPtr[pixelPtrOffset]; + break; + } + + default: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.D || this.m_format.order == tcuTexture.ChannelOrder.DS); + return tcuTexture.channelToFloat(pixelPtr[pixelPtrOffset], this.m_format.type); + } + } +}; + +/** + * @param {number} x + * @param {number} y + * @param {number=} z + * @return {Array<number>} Pixel value as Vec4 + */ +tcuTexture.ConstPixelBufferAccess.prototype.getPixel = function(x, y, z) { + z = z || 0; + + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + return this._getPixelInternal(Math.round(x), Math.round(y), Math.round(z)); +}; + +// NOTE: getPixel has been broken into getPixel, _getPixelInternal, and _getPixelPacked +// because having them combined previously was causing V8 depots +tcuTexture.ConstPixelBufferAccess.prototype._getPixelInternal = function(x, y, z) { + // Quick paths + if (z == 0) { + if (this.m_rgba8View) { + var color = this.m_rgba8View.read(x, y, 4); + color[0] /= 255; + color[1] /= 255; + color[2] /= 255; + color[3] /= 255; + return color; + } else if (this.m_rgb8View) { + var color = this.m_rgb8View.read(x, y, 3); + color[0] /= 255; + color[1] /= 255; + color[2] /= 255; + color[3] = 1; + return color; + } + } + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + return this._getPixelPacked(pixelPtr, pixelPtrOffset); +}; + +tcuTexture.ConstPixelBufferAccess.prototype._getPixelPacked = (function() { + + var ub = function(pixel, offset, count) { + return (pixel >> offset) & ((1 << count) - 1); + }; + var nb = function(pixel, offset, count) { + var maxVal = (1 << count) - 1; + return ((pixel >> offset) & ((1 << count) - 1)) / maxVal; + }; + var f11 = tcuFloat.float11ToNumber; + var f10 = tcuFloat.float10ToNumber; + + return function tcuTexture_ConstPixelBufferAccess_getPixelPacked(pixelPtr, pixelPtrOffset) { + var pixel = pixelPtr[pixelPtrOffset]; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNORM_SHORT_565: return [nb(pixel, 11, 5), nb(pixel, 5, 6), nb(pixel, 0, 5), 1]; + case tcuTexture.ChannelType.UNORM_SHORT_555: return [nb(pixel, 10, 5), nb(pixel, 5, 5), nb(pixel, 0, 5), 1]; + case tcuTexture.ChannelType.UNORM_SHORT_4444: return [nb(pixel, 12, 4), nb(pixel, 8, 4), nb(pixel, 4, 4), nb(pixel, 0, 4)]; + case tcuTexture.ChannelType.UNORM_SHORT_5551: return [nb(pixel, 11, 5), nb(pixel, 6, 5), nb(pixel, 1, 5), nb(pixel, 0, 1)]; + case tcuTexture.ChannelType.UNORM_INT_101010: return [nb(pixel, 22, 10), nb(pixel, 12, 10), nb(pixel, 2, 10), 1]; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: return [nb(pixel, 0, 10), nb(pixel, 10, 10), nb(pixel, 20, 10), nb(pixel, 30, 2)]; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: return [ub(pixel, 0, 10), ub(pixel, 10, 10), ub(pixel, 20, 10), ub(pixel, 30, 2)]; + case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: return tcuTexture.unpackRGB999E5(pixel); + + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + // \note Stencil is always ignored. + case tcuTexture.ChannelOrder.D: return [nb(pixel, 8, 24), 0, 0, 1]; + case tcuTexture.ChannelOrder.DS: return [nb(pixel, 8, 24), 0, 0, 1 /* (float)ub(0, 8) */]; + default: + DE_ASSERT(false); + } + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + // \note Stencil is ignored. + return [pixel, 0, 0, 1]; + } + + case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: { + return [f11(ub(pixel, 0, 11)), f11(ub(pixel, 11, 11)), f10(ub(pixel, 22, 10)), 1]; + } + + default: + break; + } + + // Generic path. + var result = [0, 0, 0, 0]; + var channelMap = tcuTexture.getChannelReadMap(this.m_format.order); + var channelSize = tcuTexture.getChannelSize(this.m_format.type); + + for (var c = 0; c < 4; c++) { + var map = channelMap[c]; + if (map == tcuTexture.channel.ZERO) + result[c] = 0; + else if (map == tcuTexture.channel.ONE) + result[c] = 1; + else + result[c] = tcuTexture.channelToFloat(pixelPtr[map + pixelPtrOffset], this.m_format.type); + } + + return result; + }; +})(); + +/** + * @param {number} x + * @param {number} y + * @param {number=} z + * @return {Array<number>} Pixel value as Vec4 + */ +tcuTexture.ConstPixelBufferAccess.prototype.getPixelInt = function(x, y, z) { + z = z || 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + // Quick paths + if (z == 0) { + if (this.m_rgba8View) + return this.m_rgba8View.read(x, y, 4); + else if (this.m_rgb8View) + return this.m_rgb8View.read(x, y, 3); + } + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + var pixel = pixelPtr[pixelPtrOffset]; + + var ub = function(pixel, offset, count) { + return (pixel >> offset) & ((1 << count) - 1); + }; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNORM_SHORT_565: return [ub(pixel, 11, 5), ub(pixel, 5, 6), ub(pixel, 0, 5), 1]; + case tcuTexture.ChannelType.UNORM_SHORT_555: return [ub(pixel, 10, 5), ub(pixel, 5, 5), ub(pixel, 0, 5), 1]; + case tcuTexture.ChannelType.UNORM_SHORT_4444: return [ub(pixel, 12, 4), ub(pixel, 8, 4), ub(pixel, 4, 4), ub(pixel, 0, 4)]; + case tcuTexture.ChannelType.UNORM_SHORT_5551: return [ub(pixel, 11, 5), ub(pixel, 6, 5), ub(pixel, 1, 5), ub(pixel, 0, 1)]; + case tcuTexture.ChannelType.UNORM_INT_101010: return [ub(pixel, 22, 10), ub(pixel, 12, 10), ub(pixel, 2, 10), 1]; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: return [ub(pixel, 0, 10), ub(pixel, 10, 10), ub(pixel, 20, 10), ub(pixel, 30, 2)]; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: return [ub(pixel, 0, 10), ub(pixel, 10, 10), ub(pixel, 20, 10), ub(pixel, 30, 2)]; + + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + case tcuTexture.ChannelOrder.D: return [ub(pixel, 8, 24), 0, 0, 1]; + case tcuTexture.ChannelOrder.S: return [0, 0, 0, ub(pixel, 8, 24)]; + case tcuTexture.ChannelOrder.DS: return [ub(pixel, 8, 24), 0, 0, ub(pixel, 0, 8)]; + default: + DE_ASSERT(false); + } + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + var u32array = new Uint32Array(this.m_data, this.m_offset + offset + 4, 1); + return [pixel, 0, 0, ub(u32array[0], 0, 8)]; + } + + default: + break; + } + + // Generic path. + var result = []; + result.length = 4; + var channelMap = tcuTexture.getChannelReadMap(this.m_format.order); + var channelSize = tcuTexture.getChannelSize(this.m_format.type); + + for (var c = 0; c < 4; c++) { + var map = channelMap[c]; + if (map == tcuTexture.channel.ZERO) + result[c] = 0; + else if (map == tcuTexture.channel.ONE) + result[c] = 1; + else + result[c] = tcuTexture.channelToInt(pixelPtr[map + pixelPtrOffset], this.m_format.type); + } + + return result; +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {?tcuTexture.FilterMode} filter + * @param {number} s + * @param {number} t + * @param {number} depth (integer) + * @return {Array<number>} Sample color + */ +tcuTexture.ConstPixelBufferAccess.prototype.sample2D = function(sampler, filter, s, t, depth) { + DE_ASSERT(deMath.deInBounds32(depth, 0, this.m_depth)); + + // Non-normalized coordinates. + var u = s; + var v = t; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, this.m_width); + v = tcuTexture.unnormalize(sampler.wrapT, t, this.m_height); + } + + switch (filter) { + case tcuTexture.FilterMode.NEAREST: return tcuTexture.sampleNearest2D(this, sampler, u, v, depth); + case tcuTexture.FilterMode.LINEAR: return tcuTexture.sampleLinear2D(this, sampler, u, v, depth); + default: + throw new Error('Invalid filter:' + filter); + } + throw new Error('Unimplemented'); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {?tcuTexture.FilterMode} filter + * @param {number} s + * @param {number} t + * @param {Array<number>} offset + * @return {Array<number>} Sample color + */ +tcuTexture.ConstPixelBufferAccess.prototype.sample2DOffset = function(sampler, filter, s, t, offset) { + DE_ASSERT(deMath.deInBounds32(offset[2], 0, this.m_depth)); + + // Non-normalized coordinates. + var u = s; + var v = t; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, this.m_width); + v = tcuTexture.unnormalize(sampler.wrapT, t, this.m_height); + } + + switch (filter) { + case tcuTexture.FilterMode.NEAREST: return tcuTexture.sampleNearest2D(this, sampler, u, v, offset); + case tcuTexture.FilterMode.LINEAR: return tcuTexture.sampleLinear2D(this, sampler, u, v, offset); + default: + throw new Error('Invalid filter:' + filter); + } +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {?tcuTexture.FilterMode} filter + * @param {number} s + * @param {number} t + * @param {number} r + * @param {Array<number>} offset + * @return {Array<number>} Sample color + */ +tcuTexture.ConstPixelBufferAccess.prototype.sample3DOffset = function(sampler, filter, s, t, r, offset) { + // Non-normalized coordinates. + /** @type {number} */ var u = s; + /** @type {number} */ var v = t; + /** @type {number} */ var w = r; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, this.m_width); + v = tcuTexture.unnormalize(sampler.wrapT, t, this.m_height); + w = tcuTexture.unnormalize(sampler.wrapR, r, this.m_depth); + } + + switch (filter) { + case tcuTexture.FilterMode.NEAREST: return tcuTexture.sampleNearest3D(this, sampler, u, v, w, offset); + case tcuTexture.FilterMode.LINEAR: return tcuTexture.sampleLinear3D(this, sampler, u, v, w, offset); + default: + throw new Error('Invalid filter:' + filter); + } +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {tcuTexture.FilterMode} filter + * @param {number} ref + * @param {number} s + * @param {number} t + * @param {Array<number>} offset + * @return {number} + */ +tcuTexture.ConstPixelBufferAccess.prototype.sample2DCompare = function(sampler, filter, ref, s, t, offset) { + DE_ASSERT(deMath.deInBounds32(offset[2], 0, this.m_depth)); + + // Format information for comparison function + var isFixedPointDepth = tcuTexture.isFixedPointDepthTextureFormat(this.m_format); + + // Non-normalized coordinates. + var u = s; + var v = t; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, this.m_width); + v = tcuTexture.unnormalize(sampler.wrapT, t, this.m_height); + } + + switch (filter) { + case tcuTexture.FilterMode.NEAREST: return tcuTexture.execCompare(tcuTexture.sampleNearest2D(this, sampler, u, v, offset), sampler.compare, sampler.compareChannel, ref, isFixedPointDepth); + case tcuTexture.FilterMode.LINEAR: return tcuTexture.sampleLinear2DCompare(this, sampler, ref, u, v, offset, isFixedPointDepth); + default: + DE_ASSERT(false); + return 0.0; + } +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {tcuTexture.FilterMode} filter + * @param {number} s + * @param {number} t + * @param {number} r + * @return {Array<number>} Sample color + */ +tcuTexture.ConstPixelBufferAccess.prototype.sample3D = function(sampler, filter, s, t, r) { + // Non-normalized coordinates. + var u = s; + var v = t; + var w = r; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, this.m_width); + v = tcuTexture.unnormalize(sampler.wrapT, t, this.m_height); + w = tcuTexture.unnormalize(sampler.wrapR, r, this.m_depth); + } + + switch (filter) { + case tcuTexture.FilterMode.NEAREST: return tcuTexture.sampleNearest3D(this, sampler, u, v, w); + case tcuTexture.FilterMode.LINEAR: return tcuTexture.sampleLinear3D(this, sampler, u, v, w); + default: + throw new Error('Invalid filter:' + filter); + } + throw new Error('Unimplemented'); +}; + + /* TODO: do we need any of these? */ { + // template<typename T> + // Vector<T, 4> getPixelT (int x, int y, int z = 0) const; + + // Vec4 sample3D (const tcuTexture.Sampler& sampler, tcuTexture.tcuTexture.Sampler.tcuTexture.FilterMode filter, float s, float t, float r) const; + + // Vec4 sample2DOffset (const tcuTexture.Sampler& sampler, tcuTexture.Sampler::tcuTexture.FilterMode filter, float s, float t, const IVec3& offset) const; + // Vec4 sample3DOffset (const tcuTexture.Sampler& sampler, tcuTexture.Sampler::tcuTexture.FilterMode filter, float s, float t, float r, const IVec3& offset) const; + + // float sample2DCompare (const tcuTexture.Sampler& sampler, tcuTexture.Sampler::tcuTexture.FilterMode filter, float ref, float s, float t, const IVec3& offset) const; + }; + +/** Common type limits + * + */ +tcuTexture.deTypes = { + deInt8: {min: -(1 << 7), max: (1 << 7) - 1}, + deInt16: {min: -(1 << 15), max: (1 << 15) - 1}, + deInt32: {min: -2147483648, max: 2147483647}, + deUint8: {min: 0, max: (1 << 8) - 1}, + deUint16: {min: 0, max: (1 << 16) - 1}, + deUint32: {min: 0, max: 4294967295} +}; + +/** + * Round to even and saturate + * @param {{max: number, min: number}} deType from tcuTexture.deTypes + * @param {number} value + * @return {number} + */ +tcuTexture.convertSatRte = function(deType, value) { + var minVal = deType.min; + var maxVal = deType.max; + var floor = Math.floor(value); + var frac = value - floor; + if (frac == 0.5) { + if (floor % 2 != 0) + floor += 1; + } else if (frac > 0.5) { + floor += 1; + } + + return Math.max(minVal, Math.min(maxVal, floor)); +}; + +/** + * Saturate value to type range + * @param { {max: number, min: number}} deType from tcuTexture.deTypes + * @param {number} src + * @return {number} + */ +tcuTexture.convertSat = function(deType, src) { + var minVal = deType.min; + var maxVal = deType.max; + if (src < minVal) + return minVal; + else if (src > maxVal) + return maxVal; + else + return src; +}; + +/** + * @param {number} src Input integer value + * @param {tcuTexture.ChannelType} type + * @return {number} + */ +tcuTexture.intToChannel = function(src, type) { + var dst; + switch (type) { + case tcuTexture.ChannelType.SNORM_INT8: dst = tcuTexture.convertSat(tcuTexture.deTypes.deInt8, src); break; + case tcuTexture.ChannelType.SNORM_INT16: dst = tcuTexture.convertSat(tcuTexture.deTypes.deInt16, src); break; + case tcuTexture.ChannelType.UNORM_INT8: dst = tcuTexture.convertSat(tcuTexture.deTypes.deUint8, src); break; + case tcuTexture.ChannelType.UNORM_INT16: dst = tcuTexture.convertSat(tcuTexture.deTypes.deUint16, src); break; + case tcuTexture.ChannelType.SIGNED_INT8: dst = tcuTexture.convertSat(tcuTexture.deTypes.deInt8, src); break; + case tcuTexture.ChannelType.SIGNED_INT16: dst = tcuTexture.convertSat(tcuTexture.deTypes.deInt16, src); break; + case tcuTexture.ChannelType.SIGNED_INT32: dst = tcuTexture.convertSat(tcuTexture.deTypes.deInt32, src); break; + case tcuTexture.ChannelType.UNSIGNED_INT8: dst = tcuTexture.convertSat(tcuTexture.deTypes.deUint8, src); break; + case tcuTexture.ChannelType.UNSIGNED_INT16: dst = tcuTexture.convertSat(tcuTexture.deTypes.deUint16, src); break; + case tcuTexture.ChannelType.UNSIGNED_INT32: dst = tcuTexture.convertSat(tcuTexture.deTypes.deUint32, src); break; + case tcuTexture.ChannelType.HALF_FLOAT: dst = tcuFloat.numberToHalfFloat(src); break; + case tcuTexture.ChannelType.FLOAT: dst = src; break; + default: + throw new Error('Unrecognized tcuTexture.channel type: ' + type); + } + return dst; +}; + +/** + * @param {number} src + * @param {number} bits + * @return {number} + */ +tcuTexture.normFloatToChannel = function(src, bits) { + var maxVal = (1 << bits) - 1; + var intVal = tcuTexture.convertSatRte(tcuTexture.deTypes.deUint32, src * maxVal); + return Math.min(maxVal, intVal); +}; + +/** + * @param {number} src + * @param {number} bits + * @return {number} + */ +tcuTexture.uintToChannel = function(src, bits) { + var maxVal = (1 << bits) - 1; + return Math.min(maxVal, src); +}; + +/** + * @param {number} src + * @param {tcuTexture.ChannelType} type + * @return {number} Converted src color value + */ +tcuTexture.floatToChannel = function(src, type) { + switch (type) { + case tcuTexture.ChannelType.SNORM_INT8: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt8, src * 127); + case tcuTexture.ChannelType.SNORM_INT16: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt16, src * 32767); + case tcuTexture.ChannelType.SNORM_INT32: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt32, src * 2147483647); + case tcuTexture.ChannelType.UNORM_INT8: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint8, src * 255); + case tcuTexture.ChannelType.UNORM_INT16: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint16, src * 65535); + case tcuTexture.ChannelType.UNORM_INT32: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint32, src * 4294967295); + case tcuTexture.ChannelType.SIGNED_INT8: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt8, src); + case tcuTexture.ChannelType.SIGNED_INT16: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt16, src); + case tcuTexture.ChannelType.SIGNED_INT32: return tcuTexture.convertSatRte(tcuTexture.deTypes.deInt32, src); + case tcuTexture.ChannelType.UNSIGNED_INT8: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint8, src); + case tcuTexture.ChannelType.UNSIGNED_INT16: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint16, src); + case tcuTexture.ChannelType.UNSIGNED_INT32: return tcuTexture.convertSatRte(tcuTexture.deTypes.deUint32, src); + case tcuTexture.ChannelType.HALF_FLOAT: return tcuFloat.numberToHalfFloat(src); + case tcuTexture.ChannelType.FLOAT: return src; + } + throw new Error('Unrecognized type ' + type); +}; + +/** + * \brief Read-write pixel data access + * + * This class extends read-only access object by providing write functionality. + * + * \note tcuTexture.PixelBufferAccess may not have any data members nor add any + * virtual functions. It must be possible to reinterpret_cast<> + * tcuTexture.PixelBufferAccess to tcuTexture.ConstPixelBufferAccess. + * @constructor + * @extends {tcuTexture.ConstPixelBufferAccess} + * + */ +tcuTexture.PixelBufferAccess = function(descriptor) { + tcuTexture.ConstPixelBufferAccess.call(this, descriptor); +}; + +tcuTexture.PixelBufferAccess.prototype = Object.create(tcuTexture.ConstPixelBufferAccess.prototype); +tcuTexture.PixelBufferAccess.prototype.constructor = tcuTexture.PixelBufferAccess; + +/** + * @param {Array<number>} color Vec4 color to set + * @param {number} x + * @param {number} y + * @param {number=} z + */ +tcuTexture.PixelBufferAccess.prototype.setPixel = function(color, x, y, z) { + z = z || 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + this._setPixelInternal(color, Math.round(x), Math.round(y), Math.round(z)); +}; + +// NOTE: setPixel has been broken into setPixel, _setPixelInternal, and _setPixelPacked +// because having them combined previously was causing V8 depots +tcuTexture.PixelBufferAccess.prototype._setPixelInternal = function(color, x, y, z) { + // Quick paths + if (z == 0) { + if (this.m_rgba8View) { + color = deMath.toIVec(color); + this.m_rgba8View.write(x, y, color, 4); + return; + } else if (this.m_rgb8View) { + color = deMath.toIVec(color); + this.m_rgb8View.write(x, y, color, 3); + return; + } + } + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + return this._setPixelPacked(color, pixelPtr, pixelPtrOffset); +}; + +tcuTexture.PixelBufferAccess.prototype._setPixelPacked = (function () { + var pn = function(val, offs, bits) { + return tcuTexture.normFloatToChannel(val, bits) << offs; + }; + + var pu = function(val, offs, bits) { + return tcuTexture.uintToChannel(val, bits) << offs; + }; + + return function tcuTexture_PixelBufferAccess_setPixelPacked(color, pixelPtr, pixelPtrOffset) { + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNORM_SHORT_565: pixelPtr[pixelPtrOffset] = pn(color[0], 11, 5) | pn(color[1], 5, 6) | pn(color[2], 0, 5); break; + case tcuTexture.ChannelType.UNORM_SHORT_555: pixelPtr[pixelPtrOffset] = pn(color[0], 10, 5) | pn(color[1], 5, 5) | pn(color[2], 0, 5); break; + case tcuTexture.ChannelType.UNORM_SHORT_4444: pixelPtr[pixelPtrOffset] = pn(color[0], 12, 4) | pn(color[1], 8, 4) | pn(color[2], 4, 4) | pn(color[3], 0, 4); break; + case tcuTexture.ChannelType.UNORM_SHORT_5551: pixelPtr[pixelPtrOffset] = pn(color[0], 11, 5) | pn(color[1], 6, 5) | pn(color[2], 1, 5) | pn(color[3], 0, 1); break; + case tcuTexture.ChannelType.UNORM_INT_101010: pixelPtr[pixelPtrOffset] = pn(color[0], 22, 10) | pn(color[1], 12, 10) | pn(color[2], 2, 10); break; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: pixelPtr[pixelPtrOffset] = pn(color[0], 0, 10) | pn(color[1], 10, 10) | pn(color[2], 20, 10) | pn(color[3], 30, 2); break; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: pixelPtr[pixelPtrOffset] = pu(color[0], 0, 10) | pu(color[1], 10, 10) | pu(color[2], 20, 10) | pu(color[3], 30, 2); break; + case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: pixelPtr[pixelPtrOffset] = tcuTexture.packRGB999E5(color); break; + + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + // \note Stencil is always ignored. + case tcuTexture.ChannelOrder.D: pixelPtr[pixelPtrOffset] = pn(color[0], 8, 24); break; + case tcuTexture.ChannelOrder.S: pixelPtr[pixelPtrOffset] = pn(color[3], 8, 24); break; + case tcuTexture.ChannelOrder.DS: pixelPtr[pixelPtrOffset] = pn(color[0], 8, 24) | pu(color[3], 0, 8); break; + default: + throw new Error('Unsupported tcuTexture.channel order ' + this.m_format.order); + } + break; + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + pixelPtr[pixelPtrOffset] = color[0]; + var u32array = new Uint32Array(this.m_data, (pixelPtrOffset * pixelPtr.BYTES_PER_ELEMENT) + this.m_offset + 4, 1); + u32array[0] = pu(color[3], 0, 8); + break; + } + + case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: { + var f11 = function(value) { + return tcuFloat.numberToFloat11(value); + }; + var f10 = function(value) { + return tcuFloat.numberToFloat10(value); + }; + + pixelPtr[pixelPtrOffset] = f11(color[0]) | (f11(color[1]) << 11) | (f10(color[2]) << 22); + break; + } + case tcuTexture.ChannelType.FLOAT: + if (this.m_format.order == tcuTexture.ChannelOrder.D) { + pixelPtr[pixelPtrOffset] = color[0]; + break; + } + // else fall-through to default case! + + default: { + // Generic path. + var numChannels = tcuTexture.getNumUsedChannels(this.m_format.order); + var map = tcuTexture.getChannelWriteMap(this.m_format.order); + + for (var c = 0; c < numChannels; c++) + pixelPtr[c + pixelPtrOffset] = tcuTexture.floatToChannel(color[map[c]], this.m_format.type); + } + } + }; +})(); + +/** + * @param {Array<number>} color Vec4 color to set (unnormalized) + * @param {number} x + * @param {number} y + * @param {number=} z + */ +tcuTexture.PixelBufferAccess.prototype.setPixelInt = function(color, x, y, z) { + z = z || 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + // Quick paths + if (z == 0) { + if (this.m_rgba8View) { + this.m_rgba8View.write(x, y, color, 4); + return; + } else if (this.m_rgb8View) { + this.m_rgb8View.write(x, y, color, 3); + return; + } + } + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + var pu = function(val, offs, bits) { + return tcuTexture.uintToChannel(val, bits) << offs; + }; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNORM_SHORT_565: pixelPtr[pixelPtrOffset] = pu(color[0], 11, 5) | pu(color[1], 5, 6) | pu(color[2], 0, 5); break; + case tcuTexture.ChannelType.UNORM_SHORT_555: pixelPtr[pixelPtrOffset] = pu(color[0], 10, 5) | pu(color[1], 5, 5) | pu(color[2], 0, 5); break; + case tcuTexture.ChannelType.UNORM_SHORT_4444: pixelPtr[pixelPtrOffset] = pu(color[0], 12, 4) | pu(color[1], 8, 4) | pu(color[2], 4, 4) | pu(color[3], 0, 4); break; + case tcuTexture.ChannelType.UNORM_SHORT_5551: pixelPtr[pixelPtrOffset] = pu(color[0], 11, 5) | pu(color[1], 6, 5) | pu(color[2], 1, 5) | pu(color[3], 0, 1); break; + case tcuTexture.ChannelType.UNORM_INT_101010: pixelPtr[pixelPtrOffset] = pu(color[0], 22, 10) | pu(color[1], 12, 10) | pu(color[2], 2, 10); break; + case tcuTexture.ChannelType.UNORM_INT_1010102_REV: pixelPtr[pixelPtrOffset] = pu(color[0], 0, 10) | pu(color[1], 10, 10) | pu(color[2], 20, 10) | pu(color[3], 30, 2); break; + case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: pixelPtr[pixelPtrOffset] = pu(color[0], 0, 10) | pu(color[1], 10, 10) | pu(color[2], 20, 10) | pu(color[3], 30, 2); break; + + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + // \note Stencil is always ignored. + case tcuTexture.ChannelOrder.D: pixelPtr[pixelPtrOffset] = pu(color[0], 8, 24); break; + case tcuTexture.ChannelOrder.S: pixelPtr[pixelPtrOffset] = pu(color[3], 8, 24); break; + case tcuTexture.ChannelOrder.DS: pixelPtr[pixelPtrOffset] = pu(color[0], 8, 24) | pu(color[3], 0, 8); break; + default: + throw new Error('Unsupported tcuTexture.channel order ' + this.m_format.order); + } + break; + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + pixelPtr[pixelPtrOffset] = color[0]; + var u32array = new Uint32Array(this.m_data, offset + this.m_offset + 4, 1); + u32array[pixelPtrOffset] = pu(color[3], 0, 8); + break; + } + + default: { + // Generic path. + var numChannels = tcuTexture.getNumUsedChannels(this.m_format.order); + var map = tcuTexture.getChannelWriteMap(this.m_format.order); + + for (var c = 0; c < numChannels; c++) + pixelPtr[c + pixelPtrOffset] = tcuTexture.intToChannel(color[map[c]], this.m_format.type); + } + } +}; + +/** + * @param {Array<number>=} color Vec4 color to set, optional. + * @param {Array<number>=} x Range in x axis, optional. + * @param {Array<number>=} y Range in y axis, optional. + * @param {Array<number>=} z Range in z axis, optional. + */ +tcuTexture.PixelBufferAccess.prototype.clear = function(color, x, y, z) { + var c = color || [0, 0, 0, 0]; + var arrayType = tcuTexture.getTypedArray(this.m_format.type); + var range_x = x || [0, this.m_width]; + var range_y = y || [0, this.m_height]; + var range_z = z || [0, this.m_depth]; + var pixelSize = this.m_format.getPixelSize(); + var numElements = pixelSize / arrayType.BYTES_PER_ELEMENT; + var width = range_x[1] - range_x[0]; + var height = range_y[1] - range_y[0]; + var depth = range_z[1] - range_z[0]; + if (x === undefined && y === undefined && z === undefined && + c[0] == 0 && c[1] == 0 && c[2] == 0 && c[3] == 0) { + var pixelPtr = new arrayType(this.m_data, this.m_offset); + pixelPtr.fill(0); + return; + } + + //copy first pixel over other pixels in the row + var fillRow = function(pixelPtr, numElements, width) { + for (var i = 1; i < width; i++) + for (var c = 0; c < numElements; c++) + pixelPtr[i * numElements + c] = pixelPtr[c]; + }; + // copy first row to other rows in all planes + var fillPlanes = function(buffer, arrayType, src, offset, rowStride, planeStride, width, height, depth) { + for (var j = 0; j < depth; j++) + for (var i = (j == 0 ? 1 : 0); i < height; i++) { + var dst = new arrayType(buffer, offset + i * rowStride + j * planeStride, width); + dst.set(src); + } + }; + + this.setPixel(c, range_x[0], range_y[0], range_z[0]); + + var offset = range_z[0] * this.m_slicePitch + range_y[0] * this.m_rowPitch + range_x[0] * pixelSize; + var pixelPtr = new arrayType(this.m_data, offset + this.m_offset, width * numElements); + + fillRow(pixelPtr, numElements, width); + fillPlanes(this.m_data, arrayType, pixelPtr, offset + this.m_offset, this.m_rowPitch, this.m_slicePitch, width * numElements, height, depth); +}; + +/** + * @param {number} depth to set + * @param {number} x + * @param {number} y + * @param {number=} z + */ +tcuTexture.PixelBufferAccess.prototype.setPixDepth = function(depth, x, y, z) { + if (z == null) + z = 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + var pn = function(val, offs, bits) { + return tcuTexture.normFloatToChannel(val, bits) << offs; + }; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + case tcuTexture.ChannelOrder.D: pixelPtr[pixelPtrOffset] = pn(depth, 8, 24); break; + case tcuTexture.ChannelOrder.DS: pixelPtr[pixelPtrOffset] = pn(depth, 8, 24) | (pixelPtr[pixelPtrOffset] & 0xFF); break; + default: + throw new Error('Unsupported tcuTexture.channel order ' + this.m_format.order); + } + break; + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + pixelPtr[pixelPtrOffset] = depth; + break; + } + + default: { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.D || this.m_format.order == tcuTexture.ChannelOrder.DS); + pixelPtr[pixelPtrOffset] = tcuTexture.floatToChannel(depth, this.m_format.type); + } + } +}; + +/** + * @param {number} stencil to set + * @param {number} x + * @param {number} y + * @param {number=} z + */ +tcuTexture.PixelBufferAccess.prototype.setPixStencil = function(stencil, x, y, z) { + if (z == null) + z = 0; + DE_ASSERT(deMath.deInBounds32(x, 0, this.m_width)); + DE_ASSERT(deMath.deInBounds32(y, 0, this.m_height)); + DE_ASSERT(deMath.deInBounds32(z, 0, this.m_depth)); + + // Make sure that the position is 'integer' + x = Math.round(x); + y = Math.round(y); + z = Math.round(z); + + var pixelSize = this.m_format.getPixelSize(); + var offset = z * this.m_slicePitch + y * this.m_rowPitch + x * pixelSize; + var pixelPtr = this.getDataPtr(); + var pixelPtrOffset = offset / pixelPtr.BYTES_PER_ELEMENT; + + var pu = function(val, offs, bits) { + return tcuTexture.uintToChannel(val, bits) << offs; + }; + + // Packed formats. + switch (this.m_format.type) { + case tcuTexture.ChannelType.UNSIGNED_INT_24_8: + switch (this.m_format.order) { + case tcuTexture.ChannelOrder.S: pixelPtr[pixelPtrOffset] = pu(stencil, 8, 24); break; + case tcuTexture.ChannelOrder.DS: pixelPtr[pixelPtrOffset] = pu(stencil, 0, 8) | (pixelPtr[pixelPtrOffset] & 0xFFFFFF00); break; + default: + throw new Error('Unsupported tcuTexture.channel order ' + this.m_format.order); + } + break; + + case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: { + var u32array = new Uint32Array(this.m_data, this.m_offset + offset + 4, 1); + u32array[0] = pu(stencil, 0, 8); + break; + } + + default: { + if (this.m_format.order == tcuTexture.ChannelOrder.S) + pixelPtr[pixelPtrOffset] = tcuTexture.floatToChannel(stencil, this.m_format.type); + else { + DE_ASSERT(this.m_format.order == tcuTexture.ChannelOrder.DS); + pixelPtr[3 + pixelPtrOffset] = tcuTexture.floatToChannel(stencil, this.m_format.type); + } + } + } +}; + +/** + * newFromTextureLevel + * @param {tcuTexture.TextureLevel} level + * @return {tcuTexture.PixelBufferAccess} + */ +tcuTexture.PixelBufferAccess.newFromTextureLevel = function(level) { + var descriptor = new Object(); + descriptor.format = level.getFormat(); + descriptor.width = level.getWidth(); + descriptor.height = level.getHeight(); + descriptor.depth = level.m_depth; + descriptor.data = level.m_data.m_ptr; + + return new tcuTexture.PixelBufferAccess(descriptor); +}; + +/** + * newFromTextureFormat + * @param {tcuTexture.TextureFormat} format + * @param {number} width + * @param {number} height + * @param {number} depth + * @param {number} rowPitch + * @param {number} slicePitch + * @param {ArrayBuffer} data + */ +tcuTexture.PixelBufferAccess.newFromTextureFormat = function(format, width, height, depth, rowPitch, slicePitch, data) { + var descriptor = new Object(); + descriptor.format = format; + descriptor.width = width; + descriptor.height = height; + descriptor.depth = depth; + descriptor.rowPitch = rowPitch; + descriptor.slicePitch = slicePitch; + descriptor.data = data; + + return new tcuTexture.PixelBufferAccess(descriptor); +}; + +/* TODO: Port */ +// { +// public: +// tcuTexture.PixelBufferAccess (void) {} +// tcuTexture.PixelBufferAccess (const tcuTexture.TextureFormat& format, int width, int height, int depth, void* data); + +// void* getDataPtr (void) const { return m_data; } + +// void setPixels (const void* buf, int bufSize) const; +// void setPixel (const tcu::Vec4& color, int x, int y, int z = 0) const; +// void setPixel (const tcu::IVec4& color, int x, int y, int z = 0) const; +// void setPixel (const tcu::UVec4& color, int x, int y, int z = 0) const { setPixel(color.cast<int>(), x, y, z); } + +// void setPixDepth (float depth, int x, int y, int z = 0) const; +// void setPixStencil (int stencil, int x, int y, int z = 0) const; +// }; + +/** + * @constructor + * @param {tcuTexture.TextureFormat} format + * @param {number} numLevels + */ +tcuTexture.TextureLevelPyramid = function(format, numLevels) { + /* tcuTexture.TextureFormat */this.m_format = format; + /* LevelData */ this.m_data = []; + for (var i = 0; i < numLevels; i++) + this.m_data.push(new tcuTexture.DeqpArrayBuffer()); + /* {Array<tcuTexture.PixelBufferAccess>} */ this.m_access = []; + this.m_access.length = numLevels; +}; + +/** @return {boolean} */ +tcuTexture.TextureLevelPyramid.prototype.isLevelEmpty = function(levelNdx) { return this.m_data[levelNdx].empty(); }; +/** @return {tcuTexture.TextureFormat} */ +tcuTexture.TextureLevelPyramid.prototype.getFormat = function() { return this.m_format; }; +/** @return {number} */ +tcuTexture.TextureLevelPyramid.prototype.getNumLevels = function() { return this.m_access.length; }; +/** @return {tcuTexture.PixelBufferAccess} */ +tcuTexture.TextureLevelPyramid.prototype.getLevel = function(ndx) { return this.m_access[ndx]; }; +/** @return {Array<tcuTexture.PixelBufferAccess>} */ +tcuTexture.TextureLevelPyramid.prototype.getLevels = function() { return this.m_access; }; + +/** + * @param {number} levelNdx + * @param {number} width + * @param {number} height + * @param {number} depth + */ +tcuTexture.TextureLevelPyramid.prototype.allocLevel = function(levelNdx, width, height, depth) { + var size = this.m_format.getPixelSize() * width * height * depth; + + DE_ASSERT(this.isLevelEmpty(levelNdx)); + + this.m_data[levelNdx].setStorage(size); + this.m_access[levelNdx] = new tcuTexture.PixelBufferAccess({ + format: this.m_format, + width: width, + height: height, + depth: depth, + data: this.m_data[levelNdx].m_ptr + }); +}; + +tcuTexture.TextureLevelPyramid.prototype.clearLevel = function(levelNdx) { + /* TODO: Implement */ + throw new Error('Not implemented'); +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + * @param {number} numLevels + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} depth (integer) + * @param {number=} lod + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleLevelArray2D = function(levels, numLevels, sampler, s, t, depth, lod) { + // z-offset in 2D textures is layer selector + return tcuTexture.sampleLevelArray2DOffset(levels, numLevels, sampler, [s, t], lod, [0, 0, depth]); +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + * @param {number} numLevels + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} r + * @param {number} lod + * @return {Array<number>} Vec4 pixel color + */ +tcuTexture.sampleLevelArray3D = function(levels, numLevels, sampler, s, t, r, lod) { + return tcuTexture.sampleLevelArray3DOffset(levels, numLevels, sampler, s, t, r, lod, [0, 0, 0]); +}; + +/** + * @constructor + * @param {tcuTexture.CubeFace} face + * @param {Array<number>} coords + */ +tcuTexture.CubeFaceCoords = function(face, coords) { + this.face = face; + this.s = coords[0]; + this.t = coords[1]; +}; + +/** + * \brief 2D Texture View + * @constructor + * @param {number} numLevels + * @param {?Array<tcuTexture.ConstPixelBufferAccess>} levels + */ +tcuTexture.Texture2DView = function(numLevels, levels) { + this.m_numLevels = numLevels; + this.m_levels = levels; +}; + +/** @return {number} */ +tcuTexture.Texture2DView.prototype.getNumLevels = function() { return this.m_numLevels; }; +/** @return {number} */ +tcuTexture.Texture2DView.prototype.getWidth = function() { return this.m_numLevels > 0 ? this.m_levels[0].getWidth() : 0; }; +/** @return {number} */ +tcuTexture.Texture2DView.prototype.getHeight = function() { return this.m_numLevels > 0 ? this.m_levels[0].getHeight() : 0; }; +/** + * @param {number} ndx + * @return {tcuTexture.ConstPixelBufferAccess} + */ +tcuTexture.Texture2DView.prototype.getLevel = function(ndx) { DE_ASSERT(deMath.deInBounds32(ndx, 0, this.m_numLevels)); return this.m_levels[ndx]; }; +/** @return {Array<tcuTexture.ConstPixelBufferAccess>} */ +tcuTexture.Texture2DView.prototype.getLevels = function() { return this.m_levels; }; + +/** + * @param {number} baseLevel + * @param {number} maxLevel + * return {tcuTexture.Texture2DView} + */ +tcuTexture.Texture2DView.prototype.getSubView = function(baseLevel, maxLevel) { + var clampedBase = deMath.clamp(baseLevel, 0, this.m_numLevels - 1); + var clampedMax = deMath.clamp(maxLevel, clampedBase, this.m_numLevels - 1); + var numLevels = clampedMax - clampedBase + 1; + return new tcuTexture.Texture2DView(numLevels, this.m_levels.slice(clampedBase, numLevels)); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number=} lod + * @return {Array<number>} Pixel color + */ +tcuTexture.Texture2DView.prototype.sample = function(sampler, texCoord, lod) { + return tcuTexture.sampleLevelArray2D(this.m_levels, this.m_numLevels, sampler, texCoord[0], texCoord[1], 0 /* depth */, lod); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {Array<number>} Pixel color + */ +tcuTexture.Texture2DView.prototype.sampleOffset = function(sampler, texCoord, lod, offset) { + return tcuTexture.sampleLevelArray2DOffset(this.m_levels, this.m_numLevels, sampler, texCoord, lod, [offset[0], offset[1], 0]); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @return {number} + */ +tcuTexture.Texture2DView.prototype.sampleCompare = function(sampler, ref, texCoord, lod) { + return tcuTexture.sampleLevelArray2DCompare(this.m_levels, this.m_numLevels, sampler, ref, texCoord[0], texCoord[1], lod, [0, 0, 0]); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {number} + */ +tcuTexture.Texture2DView.prototype.sampleCompareOffset = function(sampler, ref, texCoord, lod, offset) { + return tcuTexture.sampleLevelArray2DCompare(this.m_levels, this.m_numLevels, sampler, ref, texCoord[0], texCoord[1], lod, [offset[0], offset[1], 0]); +}; + + /* TODO: Port + Vec4 sample (const tcuTexture.Sampler& sampler, float s, float t, float lod) const; + Vec4 sampleOffset (const tcuTexture.Sampler& sampler, float s, float t, float lod, const IVec2& offset) const; + float sampleCompare (const tcuTexture.Sampler& sampler, float ref, float s, float t, float lod) const; + float sampleCompareOffset (const tcuTexture.Sampler& sampler, float ref, float s, float t, float lod, const IVec2& offset) const; + + Vec4 gatherOffsets (const tcuTexture.Sampler& sampler, float s, float t, int componentNdx, const IVec2 (&offsets)[4]) const; + Vec4 gatherOffsetsCompare(const tcuTexture.Sampler& sampler, float ref, float s, float t, const IVec2 (&offsets)[4]) const; + */ + +/** + * @constructor + * @param {number} numLevels + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + */ +tcuTexture.Texture2DArrayView = function(numLevels, levels) { + this.m_numLevels = numLevels; + this.m_levels = levels; +}; + +/** @return {number} */ +tcuTexture.Texture2DArrayView.prototype.getNumLevels = function() { return this.m_numLevels; }; +/** @return {number} */ +tcuTexture.Texture2DArrayView.prototype.getWidth = function() { return this.m_numLevels > 0 ? this.m_levels[0].getWidth() : 0; }; +/** @return {number} */ +tcuTexture.Texture2DArrayView.prototype.getHeight = function() { return this.m_numLevels > 0 ? this.m_levels[0].getHeight() : 0; }; +/** @return {number} */ +tcuTexture.Texture2DArrayView.prototype.getNumLayers = function() { return this.m_numLevels > 0 ? this.m_levels[0].getDepth() : 0; }; +/** + * @param {number} ndx + * @return {tcuTexture.ConstPixelBufferAccess} + */ +tcuTexture.Texture2DArrayView.prototype.getLevel = function(ndx) { DE_ASSERT(deMath.deInBounds32(ndx, 0, this.m_numLevels)); return this.m_levels[ndx]; }; +/** @return {Array<tcuTexture.ConstPixelBufferAccess>} */ +tcuTexture.Texture2DArrayView.prototype.getLevels = function() { return this.m_levels; }; + +/** + * @param {number} r + * @return {number} layer corresponding to requested sampling 'r' coordinate + */ +tcuTexture.Texture2DArrayView.prototype.selectLayer = function(r) { + DE_ASSERT(this.m_numLevels > 0 && this.m_levels); + return deMath.clamp(Math.round(r), 0, this.m_levels[0].getDepth() - 1); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number=} lod + * @return {Array<number>} Pixel color + */ +tcuTexture.Texture2DArrayView.prototype.sample = function(sampler, texCoord, lod) { + lod = lod || 0; + return tcuTexture.sampleLevelArray2D(this.m_levels, this.m_numLevels, sampler, texCoord[0], texCoord[1], this.selectLayer(texCoord[2]), lod); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {Array<number>} + */ +tcuTexture.Texture2DArrayView.prototype.sampleOffset = function(sampler, texCoord, lod, offset) { + return tcuTexture.sampleLevelArray2DOffset(this.m_levels, this.m_numLevels, sampler, texCoord, lod, [offset[0], offset[1], this.selectLayer(texCoord[2])]); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {number} + */ +tcuTexture.Texture2DArrayView.prototype.sampleCompareOffset = function(sampler, ref, texCoord, lod, offset) { + return tcuTexture.sampleLevelArray2DCompare(this.m_levels, this.m_numLevels, sampler, ref, texCoord[0], texCoord[1], lod, [offset[0], offset[1], this.selectLayer(texCoord[2])]); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @return {number} + */ +tcuTexture.Texture2DArrayView.prototype.sampleCompare = function(sampler, ref, texCoord, lod) { + return tcuTexture.sampleLevelArray2DCompare(this.m_levels, this.m_numLevels, sampler, ref, texCoord[0], texCoord[1], lod, [0, 0, this.selectLayer(texCoord[2])]); +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + * @param {number} numLevels + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {Array<number>} + */ +tcuTexture.sampleLevelArray2DOffset = function(levels, numLevels, sampler, texCoord, lod, offset) { + /** @type {boolean} */ var magnified = lod <= sampler.lodThreshold; + /** @type {tcuTexture.FilterMode} */ var filterMode = magnified ? sampler.magFilter : sampler.minFilter; + /** @type {number} */ var maxLevel; + /** @type {tcuTexture.FilterMode} */ var levelFilter; + switch (filterMode) { + case tcuTexture.FilterMode.NEAREST: return levels[0].sample2DOffset(sampler, filterMode, texCoord[0], texCoord[1], offset); + case tcuTexture.FilterMode.LINEAR: return levels[0].sample2DOffset(sampler, filterMode, texCoord[0], texCoord[1], offset); + + case tcuTexture.FilterMode.NEAREST_MIPMAP_NEAREST: + case tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST: + maxLevel = numLevels - 1; + /** @type {number} */ var level = deMath.clamp(Math.ceil(lod + 0.5) - 1, 0, maxLevel); + levelFilter = (filterMode === tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + + return levels[level].sample2DOffset(sampler, levelFilter, texCoord[0], texCoord[1], offset); + + case tcuTexture.FilterMode.NEAREST_MIPMAP_LINEAR: + case tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR: + maxLevel = numLevels - 1; + /** @type {number} */ var level0 = deMath.clamp(Math.floor(lod), 0, maxLevel); + /** @type {number} */ var level1 = Math.min(maxLevel, level0 + 1); + levelFilter = (filterMode === tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + /** @type {number} */ var f = deMath.deFloatFrac(lod); + /** @type {Array<number>} */ var t0 = levels[level0].sample2DOffset(sampler, levelFilter, texCoord[0], texCoord[1], offset); + /** @type {Array<number>} */ var t1 = levels[level1].sample2DOffset(sampler, levelFilter, texCoord[0], texCoord[1], offset); + + return deMath.add(deMath.scale(t0, (1.0 - f)), deMath.scale(t1, f)); + + default: + return [0.0, 0.0, 0.0, 0.0]; + } +}; + +/** + * @constructor + * @param {number} numLevels + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + */ +tcuTexture.Texture3DView = function(numLevels, levels) { + this.m_numLevels = numLevels; + this.m_levels = levels; +}; + +/** @return {number} */ +tcuTexture.Texture3DView.prototype.getNumLevels = function() { return this.m_numLevels; }; +/** @return {number} */ +tcuTexture.Texture3DView.prototype.getWidth = function() { return this.m_numLevels > 0 ? this.m_levels[0].getWidth() : 0; }; +/** @return {number} */ +tcuTexture.Texture3DView.prototype.getHeight = function() { return this.m_numLevels > 0 ? this.m_levels[0].getHeight() : 0; }; +/** @return {number} */ +tcuTexture.Texture3DView.prototype.getDepth = function() { return this.m_numLevels > 0 ? this.m_levels[0].getDepth() : 0; }; +/** + * @param {number} ndx + * @return {tcuTexture.ConstPixelBufferAccess} + */ +tcuTexture.Texture3DView.prototype.getLevel = function(ndx) { DE_ASSERT(deMath.deInBounds32(ndx, 0, this.m_numLevels)); return this.m_levels[ndx]; }; +/** @return {Array<tcuTexture.ConstPixelBufferAccess>} */ +tcuTexture.Texture3DView.prototype.getLevels = function() { return this.m_levels; }; + +/** + * @param {number} baseLevel + * @param {number} maxLevel + * return {tcuTexture.Texture3DView} + */ +tcuTexture.Texture3DView.prototype.getSubView = function(baseLevel, maxLevel) { + var clampedBase = deMath.clamp(baseLevel, 0, this.m_numLevels - 1); + var clampedMax = deMath.clamp(maxLevel, clampedBase, this.m_numLevels - 1); + var numLevels = clampedMax - clampedBase + 1; + return new tcuTexture.Texture3DView(numLevels, this.m_levels.slice(clampedBase, numLevels)); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number=} lod + * @return {Array<number>} Pixel color + */ +tcuTexture.Texture3DView.prototype.sample = function(sampler, texCoord, lod) { + lod = lod || 0; + return tcuTexture.sampleLevelArray3D(this.m_levels, this.m_numLevels, sampler, texCoord[0], texCoord[1], texCoord[2], lod); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @return {number} + */ +tcuTexture.Texture3DView.prototype.sampleCompare = function(sampler, ref, texCoord, lod) { + throw new Error('Unimplemented'); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number} lod + * @param {Array<number>} offset + * @return {Array<number>} + */ +tcuTexture.Texture3DView.prototype.sampleOffset = function(sampler, texCoord, lod, offset) { + return tcuTexture.sampleLevelArray3DOffset(this.m_levels, this.m_numLevels, sampler, texCoord[0], texCoord[1], texCoord[2], lod, offset); +}; + +/* TODO: All view classes are very similar. They should have a common base class */ + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} levels + * @param {number} numLevels + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} r + * @param {number} lod + * @param {Array<number>} offset + * @return {Array<number>} + */ +tcuTexture.sampleLevelArray3DOffset = function(levels, numLevels, sampler, s, t, r, lod, offset) { + /** @type {boolean} */ var magnified = lod <= sampler.lodThreshold; + /** @type {tcuTexture.FilterMode} */ var filterMode = magnified ? sampler.magFilter : sampler.minFilter; + /** @type {number} */ var maxLevel; + /** @type {tcuTexture.FilterMode} */ var levelFilter; + switch (filterMode) { + case tcuTexture.FilterMode.NEAREST: return levels[0].sample3DOffset(sampler, filterMode, s, t, r, offset); + case tcuTexture.FilterMode.LINEAR: return levels[0].sample3DOffset(sampler, filterMode, s, t, r, offset); + + case tcuTexture.FilterMode.NEAREST_MIPMAP_NEAREST: + case tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST: + maxLevel = numLevels - 1; + /** @type {number} */ var level = deMath.clamp(Math.ceil(lod + 0.5) - 1, 0, maxLevel); + levelFilter = (filterMode === tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + + return levels[level].sample3DOffset(sampler, levelFilter, s, t, r, offset); + + case tcuTexture.FilterMode.NEAREST_MIPMAP_LINEAR: + case tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR: + maxLevel = numLevels - 1; + /** @type {number} */ var level0 = deMath.clamp(Math.floor(lod), 0, maxLevel); + /** @type {number} */ var level1 = Math.min(maxLevel, level0 + 1); + levelFilter = (filterMode === tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + /** @type {number} */ var f = deMath.deFloatFrac(lod); + /** @type {Array<number>} */ var t0 = levels[level0].sample3DOffset(sampler, levelFilter, s, t, r, offset); + /** @type {Array<number>} */ var t1 = levels[level1].sample3DOffset(sampler, levelFilter, s, t, r, offset); + + return deMath.add(deMath.scale(t0, (1.0 - f)), deMath.scale(t1, f)); + + default: + throw new Error('Filter mode not supported'); + } +}; + +/** + * @param {number} width + * @param {number=} height + * @param {number=} depth + * @return {number} Number of pyramid levels + */ +tcuTexture.computeMipPyramidLevels = function(width, height, depth) { + if (depth !== undefined) + return Math.floor(Math.log2(Math.max(width, Math.max(height, depth)))) + 1; + else if (height !== undefined) + return Math.floor(Math.log2(Math.max(width, height))) + 1; + else + return Math.floor(Math.log2(width)) + 1; +}; + +/** + * @param {number} baseLevelSize + * @param {number} levelNdx + */ +tcuTexture.getMipPyramidLevelSize = function(baseLevelSize, levelNdx) { + return Math.max(baseLevelSize >> levelNdx, 1); +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} faceAccesses + * @param {tcuTexture.CubeFace} baseFace + * @param {number} u + * @param {number} v + * @param {number} depth + * @return {Array<Array<number>>} + */ +tcuTexture.getCubeLinearSamples = function(faceAccesses, baseFace, u, v, depth) { + DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight()); + /** @type {Array<Array<number>>} */ var dst = []; + var size = faceAccesses[0].getWidth(); + var x0 = Math.floor(u - 0.5); + var x1 = x0 + 1; + var y0 = Math.floor(v - 0.5); + var y1 = y0 + 1; + var baseSampleCoords = + [ + [x0, y0], + [x1, y0], + [x0, y1], + [x1, y1] + ]; + /** @type {Array<Array<number>>} */ var sampleColors = []; + /** @type {Array<boolean>} */ var hasBothCoordsOutOfBounds = []; //!< Whether correctCubeFace() returns CUBEFACE_LAST, i.e. both u and v are out of bounds. + + // Find correct faces and coordinates for out-of-bounds sample coordinates. + + for (var i = 0; i < 4; i++) { + /** @type {tcuTexture.CubeFaceCoords} */ var coords = tcuTexture.remapCubeEdgeCoords(new tcuTexture.CubeFaceCoords(baseFace, baseSampleCoords[i]), size); + hasBothCoordsOutOfBounds[i] = coords == null; + if (!hasBothCoordsOutOfBounds[i]) + sampleColors[i] = tcuTexture.lookup(faceAccesses[coords.face], coords.s, coords.t, depth); + } + + // If a sample was out of bounds in both u and v, we get its color from the average of the three other samples. + // \note This averaging behavior is not required by the GLES3 spec (though it is recommended). GLES3 spec only + // requires that if the three other samples all have the same color, then the doubly-out-of-bounds sample + // must have this color as well. + + var bothOutOfBoundsNdx = -1; + for (var i = 0; i < 4; i++) { + if (hasBothCoordsOutOfBounds[i]) { + DE_ASSERT(bothOutOfBoundsNdx < 0); // Only one sample can be out of bounds in both u and v. + bothOutOfBoundsNdx = i; + } + } + if (bothOutOfBoundsNdx != -1) { + sampleColors[bothOutOfBoundsNdx] = [0, 0, 0, 0]; + for (var i = 0; i < 4; i++) + if (i != bothOutOfBoundsNdx) + sampleColors[bothOutOfBoundsNdx] = deMath.add(sampleColors[bothOutOfBoundsNdx], sampleColors[i]); + + sampleColors[bothOutOfBoundsNdx] = deMath.scale(sampleColors[bothOutOfBoundsNdx], (1.0 / 3.0)); + } + + for (var i = 0; i < sampleColors.length; i++) + dst[i] = sampleColors[i]; + + return dst; +}; + +// \todo [2014-02-19 pyry] Optimize faceAccesses +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} faceAccesses + * @param {tcuTexture.CubeFace} baseFace + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} depth + * @return {Array<number>} + */ +tcuTexture.sampleCubeSeamlessLinear = function(faceAccesses, baseFace, sampler, s, t, depth) { + DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight()); + + var size = faceAccesses[0].getWidth(); + // Non-normalized coordinates. + var u = s; + var v = t; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, size); + v = tcuTexture.unnormalize(sampler.wrapT, t, size); + } + + // Get sample colors. + + /** @type {Array<Array<number>>} */ var sampleColors = tcuTexture.getCubeLinearSamples(faceAccesses, baseFace, u, v, depth); + + // Interpolate. + + var a = deMath.deFloatFrac(u - 0.5); + var b = deMath.deFloatFrac(v - 0.5); + + return deMath.add((deMath.scale(deMath.scale(sampleColors[0], (1.0 - a)), (1.0 - b))), + deMath.add((deMath.scale(deMath.scale(sampleColors[1], (a)), (1.0 - b))), + deMath.add((deMath.scale(deMath.scale(sampleColors[2], (1.0 - a)), (b))), + (deMath.scale(deMath.scale(sampleColors[3], (a)), (b)))))); +}; + +/** + * @param {Array<Array<tcuTexture.ConstPixelBufferAccess>>} faces + * @param {number} numLevels + * @param {tcuTexture.CubeFace} face + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} depth + * @param {number=} lod + * @return {Array<number>} + */ +tcuTexture.sampleLevelArrayCubeSeamless = function(faces, numLevels, face, sampler, s, t, depth, lod) { + lod = lod || 0; + var magnified = lod <= sampler.lodThreshold; + /** @type {tcuTexture.FilterMode} */ var filterMode = magnified ? sampler.magFilter : sampler.minFilter; + /** @type {Array<tcuTexture.ConstPixelBufferAccess>} */ var faceAccesses = []; + /** @type {tcuTexture.FilterMode}*/ var levelFilter; + + switch (filterMode) { + case tcuTexture.FilterMode.NEAREST: + return tcuTexture.sampleCubeSeamlessNearest(faces[face][0], sampler, s, t, depth); + + case tcuTexture.FilterMode.LINEAR: { + faceAccesses = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) + faceAccesses[i] = faces[i][0]; + + return tcuTexture.sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, depth); + } + + case tcuTexture.FilterMode.NEAREST_MIPMAP_NEAREST: + case tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST: { + var maxLevel = numLevels - 1; + var level = deMath.clamp(Math.ceil(lod + 0.5) - 1, 0, maxLevel); + levelFilter = (filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + + if (levelFilter == tcuTexture.FilterMode.NEAREST) + return tcuTexture.sampleCubeSeamlessNearest(faces[face][level], sampler, s, t, depth); + else { + DE_ASSERT(levelFilter == tcuTexture.FilterMode.LINEAR); + + faceAccesses = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) + faceAccesses[i] = faces[i][level]; + + return tcuTexture.sampleCubeSeamlessLinear(faceAccesses, face, sampler, s, t, depth); + } + } + + case tcuTexture.FilterMode.NEAREST_MIPMAP_LINEAR: + case tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR: { + var maxLevel = numLevels - 1; + var level0 = deMath.clamp(Math.floor(lod), 0, maxLevel); + var level1 = Math.min(maxLevel, level0 + 1); + levelFilter = (filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + var f = deMath.deFloatFrac(lod); + var t0 = []; + var t1 = []; + + if (levelFilter == tcuTexture.FilterMode.NEAREST) { + t0 = tcuTexture.sampleCubeSeamlessNearest(faces[face][level0], sampler, s, t, depth); + t1 = tcuTexture.sampleCubeSeamlessNearest(faces[face][level1], sampler, s, t, depth); + } else { + DE_ASSERT(levelFilter == tcuTexture.FilterMode.LINEAR); + + /** @type {Array<tcuTexture.ConstPixelBufferAccess>}*/ var faceAccesses0 = []; + /** @type {Array<tcuTexture.ConstPixelBufferAccess>}*/ var faceAccesses1 = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) { + faceAccesses0[i] = faces[i][level0]; + faceAccesses1[i] = faces[i][level1]; + } + + t0 = tcuTexture.sampleCubeSeamlessLinear(faceAccesses0, face, sampler, s, t, depth); + t1 = tcuTexture.sampleCubeSeamlessLinear(faceAccesses1, face, sampler, s, t, depth); + } + + return deMath.add(deMath.scale(t0, (1.0 - f)), deMath.scale(t1, f)); + } + + default: + throw new Error('Unsupported filter mode'); + } +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} faceAccess + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {number} s + * @param {number} t + * @param {number=} depth + * @return {number} + */ +tcuTexture.sampleCubeSeamlessNearestCompare = function(faceAccess, sampler, ref, s, t, depth) { + depth = depth ? depth : 0; + /** @type {tcuTexture.Sampler} */ var clampingSampler = deUtil.clone(sampler); + clampingSampler.wrapS = tcuTexture.WrapMode.CLAMP_TO_EDGE; + clampingSampler.wrapT = tcuTexture.WrapMode.CLAMP_TO_EDGE; + return faceAccess.sample2DCompare(clampingSampler, tcuTexture.FilterMode.NEAREST, ref, s, t, [0, 0, depth]); +}; + +/** + * @param {Array<tcuTexture.ConstPixelBufferAccess>} faceAccesses + * @param {tcuTexture.CubeFace} baseFace + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {number} s + * @param {number} t + * @return {number} + */ +tcuTexture.sampleCubeSeamlessLinearCompare = function(faceAccesses, baseFace, sampler, ref, s, t) { + DE_ASSERT(faceAccesses[0].getWidth() == faceAccesses[0].getHeight()); + + var size = faceAccesses[0].getWidth(); + // Non-normalized coordinates. + var u = s; + var v = t; + + if (sampler.normalizedCoords) { + u = tcuTexture.unnormalize(sampler.wrapS, s, size); + v = tcuTexture.unnormalize(sampler.wrapT, t, size); + } + + var x0 = Math.floor(u - 0.5); + var x1 = x0 + 1; + var y0 = Math.floor(v - 0.5); + var y1 = y0 + 1; + var baseSampleCoords = [ + [x0, y0], + [x1, y0], + [x0, y1], + [x1, y1] + ]; + var sampleRes = []; + var hasBothCoordsOutOfBounds = []; //!< Whether correctCubeFace() returns CUBEFACE_LAST, i.e. both u and v are out of bounds. + + // Find correct faces and coordinates for out-of-bounds sample coordinates. + + for (var i = 0; i < 4; i++) { + /** @type {tcuTexture.CubeFaceCoords} */ var coords = tcuTexture.remapCubeEdgeCoords(new tcuTexture.CubeFaceCoords(baseFace, baseSampleCoords[i]), size); + hasBothCoordsOutOfBounds[i] = coords == null; + + if (!hasBothCoordsOutOfBounds[i]) { + var isFixedPointDepth = tcuTexture.isFixedPointDepthTextureFormat(faceAccesses[coords.face].getFormat()); + + sampleRes[i] = tcuTexture.execCompare(faceAccesses[coords.face].getPixel(coords.s, coords.t), sampler.compare, sampler.compareChannel, ref, isFixedPointDepth); + } + } + + // If a sample was out of bounds in both u and v, we get its color from the average of the three other samples. + // \note This averaging behavior is not required by the GLES3 spec (though it is recommended). GLES3 spec only + // requires that if the three other samples all have the same color, then the doubly-out-of-bounds sample + // must have this color as well. + + var bothOutOfBoundsNdx = -1; + for (var i = 0; i < 4; i++) { + if (hasBothCoordsOutOfBounds[i]) { + DE_ASSERT(bothOutOfBoundsNdx < 0); // Only one sample can be out of bounds in both u and v. + bothOutOfBoundsNdx = i; + } + } + if (bothOutOfBoundsNdx != -1) { + sampleRes[bothOutOfBoundsNdx] = 0.0; + for (var i = 0; i < 4; i++) + if (i != bothOutOfBoundsNdx) + sampleRes[bothOutOfBoundsNdx] += sampleRes[i]; + + sampleRes[bothOutOfBoundsNdx] = sampleRes[bothOutOfBoundsNdx] * (1.0 / 3.0); + } + + // Interpolate. + + var a = deMath.deFloatFrac(u - 0.5); + var b = deMath.deFloatFrac(v - 0.5); + + return (sampleRes[0] * (1.0 - a) * (1.0 - b)) + + (sampleRes[1] * (a) * (1.0 - b)) + + (sampleRes[2] * (1.0 - a) * (b)) + + (sampleRes[3] * (a) * (b)); +}; + +/** + * @param {tcuTexture.ConstPixelBufferAccess} faceAccess + * @param {tcuTexture.Sampler} sampler + * @param {number} s + * @param {number} t + * @param {number} depth + * @return {Array<number>} + */ +tcuTexture.sampleCubeSeamlessNearest = function(faceAccess, sampler, s, t, depth) { + /** @type {tcuTexture.Sampler} */ var clampingSampler = sampler; + clampingSampler.wrapS = tcuTexture.WrapMode.CLAMP_TO_EDGE; + clampingSampler.wrapT = tcuTexture.WrapMode.CLAMP_TO_EDGE; + return faceAccess.sample2D(clampingSampler, tcuTexture.FilterMode.NEAREST, s, t, depth); +}; + +/** + * @param {Array<number>} coords Vec3 cube coordinates + * @return {tcuTexture.CubeFaceCoords} + */ +tcuTexture.getCubeFaceCoords = function(coords) { + var face = tcuTexture.selectCubeFace(coords); + return new tcuTexture.CubeFaceCoords(face, tcuTexture.projectToFace(face, coords)); +}; + +/** + * @param {Array<Array<tcuTexture.ConstPixelBufferAccess>>} faces + * @param {number} numLevels + * @param {tcuTexture.CubeFace} face + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {number} s + * @param {number} t + * @param {number} lod + * @return {number} + */ +tcuTexture.sampleLevelArrayCubeSeamlessCompare = function(faces, numLevels, face, sampler, ref, s, t, lod) { + var magnified = lod <= sampler.lodThreshold; + /** @type {tcuTexture.FilterMode}*/ var filterMode = magnified ? sampler.magFilter : sampler.minFilter; + /** @type {Array<tcuTexture.ConstPixelBufferAccess>} */ var faceAccesses = []; + /** @type {tcuTexture.FilterMode} */ var levelFilter; + + switch (filterMode) { + case tcuTexture.FilterMode.NEAREST: + return tcuTexture.sampleCubeSeamlessNearestCompare(faces[face][0], sampler, ref, s, t); + + case tcuTexture.FilterMode.LINEAR: { + faceAccesses = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) + faceAccesses[i] = faces[i][0]; + + return tcuTexture.sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t); + } + + case tcuTexture.FilterMode.NEAREST_MIPMAP_NEAREST: + case tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST: { + var maxLevel = numLevels - 1; + var level = deMath.clamp(Math.ceil(lod + 0.5) - 1, 0, maxLevel); + levelFilter = filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_NEAREST ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + + if (levelFilter == tcuTexture.FilterMode.NEAREST) + return tcuTexture.sampleCubeSeamlessNearestCompare(faces[face][level], sampler, ref, s, t); + else { + DE_ASSERT(levelFilter == tcuTexture.FilterMode.LINEAR); + + faceAccesses = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) + faceAccesses[i] = faces[i][level]; + + return tcuTexture.sampleCubeSeamlessLinearCompare(faceAccesses, face, sampler, ref, s, t); + } + } + + case tcuTexture.FilterMode.NEAREST_MIPMAP_LINEAR: + case tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR: { + var maxLevel = numLevels - 1; + var level0 = deMath.clamp(Math.floor(lod), 0, maxLevel); + var level1 = Math.min(maxLevel, level0 + 1); + levelFilter = (filterMode == tcuTexture.FilterMode.LINEAR_MIPMAP_LINEAR) ? tcuTexture.FilterMode.LINEAR : tcuTexture.FilterMode.NEAREST; + var f = deMath.deFloatFrac(lod); + var t0; + var t1; + + if (levelFilter == tcuTexture.FilterMode.NEAREST) { + t0 = tcuTexture.sampleCubeSeamlessNearestCompare(faces[face][level0], sampler, ref, s, t); + t1 = tcuTexture.sampleCubeSeamlessNearestCompare(faces[face][level1], sampler, ref, s, t); + } else { + DE_ASSERT(levelFilter == tcuTexture.FilterMode.LINEAR); + + /** @type {Array<tcuTexture.ConstPixelBufferAccess>} */ var faceAccesses0 = []; + /** @type {Array<tcuTexture.ConstPixelBufferAccess>} */ var faceAccesses1 = []; + for (var i = 0; i < Object.keys(tcuTexture.CubeFace).length; i++) { + faceAccesses0[i] = faces[i][level0]; + faceAccesses1[i] = faces[i][level1]; + } + + t0 = tcuTexture.sampleCubeSeamlessLinearCompare(faceAccesses0, face, sampler, ref, s, t); + t1 = tcuTexture.sampleCubeSeamlessLinearCompare(faceAccesses1, face, sampler, ref, s, t); + } + + return t0 * (1.0 - f) + t1 * f; + } + + default: + throw new Error('Unsupported filter mode'); + } +}; + +/** + * @constructor + * @extends {tcuTexture.TextureLevelPyramid} + * @param {tcuTexture.TextureFormat} format + * @param {number} width + * @param {number} height + */ +tcuTexture.Texture2D = function(format, width, height) { + tcuTexture.TextureLevelPyramid.call(this, format, tcuTexture.computeMipPyramidLevels(width, height)); + this.m_width = width; + this.m_height = height; + this.m_view = new tcuTexture.Texture2DView(this.getNumLevels(), this.getLevels()); +}; + +tcuTexture.Texture2D.prototype = Object.create(tcuTexture.TextureLevelPyramid.prototype); +tcuTexture.Texture2D.prototype.constructor = tcuTexture.Texture2D; + +tcuTexture.Texture2D.prototype.getWidth = function() { return this.m_width; }; +tcuTexture.Texture2D.prototype.getHeight = function() { return this.m_height; }; +/** @return {tcuTexture.Texture2DView} */ +tcuTexture.Texture2D.prototype.getView = function() { return this.m_view; }; + +/** + * @param {number} baseLevel + * @param {number} maxLevel + * @return {tcuTexture.Texture2DView} + */ +tcuTexture.Texture2D.prototype.getSubView = function(baseLevel, maxLevel) { return this.m_view.getSubView(baseLevel, maxLevel); }; + +/** + * @param {number} levelNdx + */ +tcuTexture.Texture2D.prototype.allocLevel = function(levelNdx) { + DE_ASSERT(deMath.deInBounds32(levelNdx, 0, this.getNumLevels())); + + var width = tcuTexture.getMipPyramidLevelSize(this.m_width, levelNdx); + var height = tcuTexture.getMipPyramidLevelSize(this.m_height, levelNdx); + + tcuTexture.TextureLevelPyramid.prototype.allocLevel.call(this, levelNdx, width, height, 1); +}; + +/** + * @constructor + * @extends {tcuTexture.TextureLevelPyramid} + * @param {tcuTexture.TextureFormat} format + * @param {number} width + * @param {number} height + * @param {number} numLayers + */ +tcuTexture.Texture2DArray = function(format, width, height, numLayers) { + tcuTexture.TextureLevelPyramid.call(this, format, tcuTexture.computeMipPyramidLevels(width, height)); + this.m_width = width; + this.m_height = height; + this.m_numLayers = numLayers; + this.m_view = new tcuTexture.Texture2DArrayView(this.getNumLevels(), this.getLevels()); +}; + +tcuTexture.Texture2DArray.prototype = Object.create(tcuTexture.TextureLevelPyramid.prototype); +tcuTexture.Texture2DArray.prototype.constructor = tcuTexture.Texture2DArray; +/** @return {tcuTexture.Texture2DArrayView} */ +tcuTexture.Texture2DArray.prototype.getView = function() { return this.m_view; }; + +/** @return {number} */ +tcuTexture.Texture2DArray.prototype.getWidth = function() { return this.m_width; }; + +/** @return {number} */ +tcuTexture.Texture2DArray.prototype.getHeight = function() { return this.m_height; }; + +/** + * @param {number} levelNdx + */ +tcuTexture.Texture2DArray.prototype.allocLevel = function(levelNdx) { + DE_ASSERT(deMath.deInBounds32(levelNdx, 0, this.getNumLevels())); + + var width = tcuTexture.getMipPyramidLevelSize(this.m_width, levelNdx); + var height = tcuTexture.getMipPyramidLevelSize(this.m_height, levelNdx); + + tcuTexture.TextureLevelPyramid.prototype.allocLevel.call(this, levelNdx, width, height, this.m_numLayers); +}; + +/** + * @constructor + * @extends {tcuTexture.TextureLevelPyramid} + * @param {tcuTexture.TextureFormat} format + * @param {number} width + * @param {number} height + * @param {number} depth + */ +tcuTexture.Texture3D = function(format, width, height, depth) { + tcuTexture.TextureLevelPyramid.call(this, format, tcuTexture.computeMipPyramidLevels(width, height, depth)); + this.m_width = width; + this.m_height = height; + this.m_depth = depth; + this.m_view = new tcuTexture.Texture3DView(this.getNumLevels(), this.getLevels()); +}; + +tcuTexture.Texture3D.prototype = Object.create(tcuTexture.TextureLevelPyramid.prototype); +tcuTexture.Texture3D.prototype.constructor = tcuTexture.Texture3D; + +tcuTexture.Texture3D.prototype.getWidth = function() { return this.m_width; }; +tcuTexture.Texture3D.prototype.getHeight = function() { return this.m_height; }; +tcuTexture.Texture3D.prototype.getDepth = function() { return this.m_depth; }; +tcuTexture.Texture3D.prototype.getView = function() { return this.m_view; }; +/** + * @param {number} baseLevel + * @param {number} maxLevel + * @return {tcuTexture.Texture3DView} + */ +tcuTexture.Texture3D.prototype.getSubView = function(baseLevel, maxLevel) { return this.m_view.getSubView(baseLevel, maxLevel); }; + +/** + * @param {number} levelNdx + */ +tcuTexture.Texture3D.prototype.allocLevel = function(levelNdx) { + DE_ASSERT(deMath.deInBounds32(levelNdx, 0, this.getNumLevels())); + + var width = tcuTexture.getMipPyramidLevelSize(this.m_width, levelNdx); + var height = tcuTexture.getMipPyramidLevelSize(this.m_height, levelNdx); + var depth = tcuTexture.getMipPyramidLevelSize(this.m_depth, levelNdx); + + tcuTexture.TextureLevelPyramid.prototype.allocLevel.call(this, levelNdx, width, height, depth); +}; + +/** + * @constructor + * @param {number} numLevels + * @param {Array<Array<tcuTexture.ConstPixelBufferAccess>>} levels + */ +tcuTexture.TextureCubeView = function(numLevels, levels) { + this.m_numLevels = numLevels; + this.m_levels = levels; +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number=} lod + * @return {Array<number>} Pixel color + */ +tcuTexture.TextureCubeView.prototype.sample = function(sampler, texCoord, lod) { + DE_ASSERT(sampler.compare == tcuTexture.CompareMode.COMPAREMODE_NONE); + + // Computes (face, s, t). + var coords = tcuTexture.getCubeFaceCoords(texCoord); + if (sampler.seamlessCubeMap) + return tcuTexture.sampleLevelArrayCubeSeamless(this.m_levels, this.m_numLevels, coords.face, sampler, coords.s, coords.t, 0 /* depth */, lod); + else + return tcuTexture.sampleLevelArray2D(this.m_levels[coords.face], this.m_numLevels, sampler, coords.s, coords.t, 0 /* depth */, lod); +}; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {number} ref + * @param {Array<number>} texCoord + * @param {number} lod + * @return {number} + */ +tcuTexture.TextureCubeView.prototype.sampleCompare = function(sampler, ref, texCoord, lod) { + DE_ASSERT(sampler.compare != tcuTexture.CompareMode.COMPAREMODE_NONE); + + // Computes (face, s, t). + var coords = tcuTexture.getCubeFaceCoords(texCoord); + if (sampler.seamlessCubeMap) + return tcuTexture.sampleLevelArrayCubeSeamlessCompare(this.m_levels, this.m_numLevels, coords.face, sampler, ref, coords.s, coords.t, lod); + else + return tcuTexture.sampleLevelArray2DCompare(this.m_levels[coords.face], this.m_numLevels, sampler, ref, coords.s, coords.t, lod, [0, 0, 0]); +}; + +/** + * @param {tcuTexture.CubeFace} face + * @return {Array<tcuTexture.ConstPixelBufferAccess>} + */ +tcuTexture.TextureCubeView.prototype.getFaceLevels = function(face) { return this.m_levels[face]; }; +/** @return {number} */ +tcuTexture.TextureCubeView.prototype.getSize = function() { return this.m_numLevels > 0 ? this.m_levels[0][0].getWidth() : 0; }; + +/** @return {number} */ +tcuTexture.TextureCubeView.prototype.getNumLevels = function() { return this.m_numLevels; }; + +/** + * @param {number} ndx + * @param {tcuTexture.CubeFace} face + * @return {tcuTexture.ConstPixelBufferAccess} + */ +tcuTexture.TextureCubeView.prototype.getLevelFace = function(ndx, face) { + assertMsgOptions(0 <= ndx && ndx < this.m_numLevels, '', false, true); + return this.m_levels[face][ndx]; +}; + +/** + * @param {number} baseLevel + * @param {number} maxLevel + * @return {tcuTexture.TextureCubeView} + */ +tcuTexture.TextureCubeView.prototype.getSubView = function(baseLevel, maxLevel) { + var clampedBase = deMath.clamp(baseLevel, 0, this.m_numLevels - 1); + var clampedMax = deMath.clamp(maxLevel, clampedBase, this.m_numLevels - 1); + var numLevels = clampedMax - clampedBase + 1; + var levels = []; + for (var face in tcuTexture.CubeFace) + levels.push(this.getFaceLevels(tcuTexture.CubeFace[face]).slice(clampedBase, numLevels)); + + return new tcuTexture.TextureCubeView(numLevels, levels); +}; + +/** + * @constructor + * @param {tcuTexture.TextureFormat} format + * @param {number} size + */ +tcuTexture.TextureCube = function(format, size) { + this.m_format = format; + this.m_size = size; + this.m_data = []; + this.m_data.length = Object.keys(tcuTexture.CubeFace).length; + this.m_access = []; + this.m_access.length = Object.keys(tcuTexture.CubeFace).length; + + var numLevels = tcuTexture.computeMipPyramidLevels(this.m_size); + var levels = []; + levels.length = Object.keys(tcuTexture.CubeFace).length; + + for (var face in tcuTexture.CubeFace) { + this.m_data[tcuTexture.CubeFace[face]] = []; + for (var i = 0; i < numLevels; i++) + this.m_data[tcuTexture.CubeFace[face]].push(new tcuTexture.DeqpArrayBuffer()); + this.m_access[tcuTexture.CubeFace[face]] = []; + this.m_access[tcuTexture.CubeFace[face]].length = numLevels; + levels[tcuTexture.CubeFace[face]] = this.m_access[tcuTexture.CubeFace[face]]; + } + + this.m_view = new tcuTexture.TextureCubeView(numLevels, levels); +}; + +/** @return {tcuTexture.TextureFormat} */ +tcuTexture.TextureCube.prototype.getFormat = function() { return this.m_format; }; +/** @return {number} */ +tcuTexture.TextureCube.prototype.getSize = function() { return this.m_size; }; +/** @return {tcuTexture.TextureCubeView} */ +tcuTexture.TextureCube.prototype.getView = function() { return this.m_view; }; +/** + * @param {number} ndx Level index + * @param {tcuTexture.CubeFace} face + * @return {tcuTexture.PixelBufferAccess} + */ +tcuTexture.TextureCube.prototype.getLevelFace = function(ndx, face) { return this.m_access[face][ndx]; }; +/** @return {number} */ +tcuTexture.TextureCube.prototype.getNumLevels = function() { return this.m_access[0].length; }; + +/** + * @param {tcuTexture.Sampler} sampler + * @param {Array<number>} texCoord + * @param {number} lod + * @return {Array<number>} Pixel color + */ +tcuTexture.TextureCube.prototype.sample = function(sampler, texCoord, lod) { + return this.m_view.sample(sampler, texCoord, lod); +}; + +/** + * @param {number} baseLevel + * @param {number} maxLevel + * @return {tcuTexture.TextureCubeView} + */ +tcuTexture.TextureCube.prototype.getSubView = function(baseLevel, maxLevel) { return this.m_view.getSubView(baseLevel, maxLevel); }; + +/** + * @param {tcuTexture.CubeFace} face + * @param {number} levelNdx + * @return {boolean} + */ +tcuTexture.TextureCube.prototype.isLevelEmpty = function(face, levelNdx) { + return this.m_data[face][levelNdx].empty(); +}; + +/** + * @param {tcuTexture.CubeFace} face + * @param {number} levelNdx + */ +tcuTexture.TextureCube.prototype.allocLevel = function(face, levelNdx) { + /** @const */ var size = tcuTexture.getMipPyramidLevelSize(this.m_size, levelNdx); + /** @const*/ var dataSize = this.m_format.getPixelSize() * size * size; + DE_ASSERT(this.isLevelEmpty(face, levelNdx)); + + this.m_data[face][levelNdx].setStorage(dataSize); + this.m_access[face][levelNdx] = new tcuTexture.PixelBufferAccess({ + format: this.m_format, + width: size, + height: size, + depth: 1, + data: this.m_data[face][levelNdx].m_ptr + }); +}; + +/** + * @param {Array<number>} coords Cube coordinates + * @return {tcuTexture.CubeFace} + */ +tcuTexture.selectCubeFace = function(coords) { + var x = coords[0]; + var y = coords[1]; + var z = coords[2]; + var ax = Math.abs(x); + var ay = Math.abs(y); + var az = Math.abs(z); + + if (ay < ax && az < ax) + return x >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_X : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X; + else if (ax < ay && az < ay) + return y >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y; + else if (ax < az && ay < az) + return z >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z; + else { + // Some of the components are equal. Use tie-breaking rule. + if (ax == ay) { + if (ax < az) + return z >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z; + else + return x >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_X : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X; + } else if (ax == az) { + if (az < ay) + return y >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y; + else + return z >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z; + } else if (ay == az) { + if (ay < ax) + return x >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_X : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X; + else + return y >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y; + } else + return x >= 0 ? tcuTexture.CubeFace.CUBEFACE_POSITIVE_X : tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X; + } +}; + +/** + * @param {tcuTexture.CubeFace} face + * @param {Array<number>} coord Cube coordinates (Vec3) + * @return {Array<number>} face coordinates (Vec2) + */ +tcuTexture.projectToFace = function(face, coord) { + var rx = coord[0]; + var ry = coord[1]; + var rz = coord[2]; + var sc = 0; + var tc = 0; + var ma = 0; + + switch (face) { + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X: sc = +rz; tc = -ry; ma = -rx; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_X: sc = -rz; tc = -ry; ma = +rx; break; + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y: sc = +rx; tc = -rz; ma = -ry; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y: sc = +rx; tc = +rz; ma = +ry; break; + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z: sc = -rx; tc = -ry; ma = -rz; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z: sc = +rx; tc = -ry; ma = +rz; break; + default: + throw new Error('Unrecognized face ' + face); + } + + // Compute s, t + var s = ((sc / ma) + 1) / 2; + var t = ((tc / ma) + 1) / 2; + + return [s, t]; +}; + +/** + * @constructor + * @param {tcuTexture.TextureFormat} format + * @param {number=} width + * @param {number=} height + * @param {number=} depth + */ +tcuTexture.TextureLevel = function(format, width, height, depth) { + this.m_format = format; + this.m_width = width || 0; + this.m_height = height || 0; + this.m_depth = depth === undefined ? 1 : depth; + this.m_data = new tcuTexture.DeqpArrayBuffer(); + this.setSize(this.m_width, this.m_height, this.m_depth); +}; + +tcuTexture.TextureLevel.prototype.constructor = tcuTexture.TextureLevel; + +/** + * @param {tcuTexture.TextureFormat} format + * @param {number=} width + * @param {number=} height + * @param {number=} depth + */ +tcuTexture.TextureLevel.prototype.setStorage = function(format, width, height, depth) { + this.m_format = format; + this.setSize(width, height, depth); +}; + +/** + * @param {number=} width + * @param {number=} height + * @param {number=} depth + */ +tcuTexture.TextureLevel.prototype.setSize = function(width, height, depth) { + var pixelSize = this.m_format.getPixelSize(); + + this.m_width = width || 0; + this.m_height = height || 0; + this.m_depth = depth === undefined ? 1 : depth; + + this.m_data.setStorage(this.m_width * this.m_height * this.m_depth * pixelSize); +}; + +/** + * @return {tcuTexture.PixelBufferAccess} + */ +tcuTexture.TextureLevel.prototype.getAccess = function() { + return new tcuTexture.PixelBufferAccess({ + format: this.m_format, + width: this.m_width, + height: this.m_height, + depth: this.m_depth, + data: this.m_data.m_ptr + }); + +}; + +/** + * @return {number} + */ +tcuTexture.TextureLevel.prototype.getWidth = function() { + return this.m_width; +}; + +/** + * @return {number} + */ +tcuTexture.TextureLevel.prototype.getHeight = function() { + return this.m_height; +}; + +/** + * @return {number} + */ +tcuTexture.TextureLevel.prototype.getDepth = function() { + return this.m_depth; +}; + +/** + * @return {?tcuTexture.TextureFormat} + */ +tcuTexture.TextureLevel.prototype.getFormat = function() { + return this.m_format; +}; + +/** + * Checks if origCoords.coords is in bounds defined by size; if not, return a CubeFaceCoords with face set to the appropriate neighboring face and coords transformed accordingly. + * \note If both x and y in origCoords.coords are out of bounds, this returns with face CUBEFACE_LAST, signifying that there is no unique neighboring face. + * @param {tcuTexture.CubeFaceCoords} origCoords + * @param {number} size + * @return {tcuTexture.CubeFaceCoords} + */ +tcuTexture.remapCubeEdgeCoords = function(origCoords, size) { + var uInBounds = deMath.deInBounds32(origCoords.s, 0, size); + var vInBounds = deMath.deInBounds32(origCoords.t, 0, size); + + if (uInBounds && vInBounds) + return origCoords; + + if (!uInBounds && !vInBounds) + return null; + + var coords = [ + tcuTexture.wrap(tcuTexture.WrapMode.CLAMP_TO_BORDER, origCoords.s, size), + tcuTexture.wrap(tcuTexture.WrapMode.CLAMP_TO_BORDER, origCoords.t, size)]; + var canonizedCoords = []; + + // Map the uv coordinates to canonized 3d coordinates. + + switch (origCoords.face) { + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X: canonizedCoords = [0, size - 1 - coords[1], coords[0]]; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_X: canonizedCoords = [size - 1, size - 1 - coords[1], size - 1 - coords[0]]; break; + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y: canonizedCoords = [coords[0], 0, size - 1 - coords[1]]; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y: canonizedCoords = [coords[0], size - 1, coords[1]]; break; + case tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z: canonizedCoords = [size - 1 - coords[0], size - 1 - coords[1], 0]; break; + case tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z: canonizedCoords = [coords[0], size - 1 - coords[1], size - 1]; break; + default: throw new Error('Invalid cube face:' + origCoords.face); + } + + // Find an appropriate face to re-map the coordinates to. + + if (canonizedCoords[0] == -1) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_NEGATIVE_X, [canonizedCoords[2], size - 1 - canonizedCoords[1]]); + + if (canonizedCoords[0] == size) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_POSITIVE_X, [size - 1 - canonizedCoords[2], size - 1 - canonizedCoords[1]]); + + if (canonizedCoords[1] == -1) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Y, [canonizedCoords[0], size - 1 - canonizedCoords[2]]); + + if (canonizedCoords[1] == size) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_POSITIVE_Y, [canonizedCoords[0], canonizedCoords[2]]); + + if (canonizedCoords[2] == -1) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_NEGATIVE_Z, [size - 1 - canonizedCoords[0], size - 1 - canonizedCoords[1]]); + + if (canonizedCoords[2] == size) + return new tcuTexture.CubeFaceCoords(tcuTexture.CubeFace.CUBEFACE_POSITIVE_Z, [canonizedCoords[0], size - 1 - canonizedCoords[1]]); + + throw new Error('Cannot remap cube coordinates'); +}; + +/** + * @constructor + * @param {tcuTexture.ConstPixelBufferAccess} src + */ +tcuTexture.RGBA8View = function(src) { + this.src = src; + this.data = new Uint8Array(src.getBuffer(), src.m_offset); + this.stride = src.getRowPitch(); + this.width = src.getWidth(); + this.height = src.getHeight(); + this.pixelSize = src.getFormat().getPixelSize(); +}; + +/** + * @return {tcuTexture.TextureFormat} + */ +tcuTexture.RGBA8View.prototype.getFormat = function() { return this.src.getFormat(); }; + +/** + * Read a pixel + * @param {number} x + * @param {number} y + * @param {number=} numChannels + * @return {Array<number>} + */ +tcuTexture.RGBA8View.prototype.read = function(x, y, numChannels) { + numChannels = numChannels || 4; + var offset = y * this.stride + x * this.pixelSize; + /* Always return a vec4 */ + var result = [0, 0, 0, 255]; + for (var i = 0; i < numChannels; i++) + result[i] = this.data[offset + i]; + return result; +}; + +/** + * Read a pixel into a Uint32 + * @param {number} x + * @param {number} y + * @return {number} + */ +tcuTexture.RGBA8View.prototype.readUintRGBA8 = function(x, y) { + var offset = y * this.stride + x * this.pixelSize; + return ((this.data[offset] & 0xff) << 24) + + ((this.data[offset + 1] & 0xff) << 16) + + ((this.data[offset + 2] & 0xff) << 8) + + (this.data[offset + 3] & 0xff); +}; + +/** + * Write a pixel + * @param {number} x + * @param {number} y + * @param {Array<number>} value + * @param {number=} numChannels + */ +tcuTexture.RGBA8View.prototype.write = function(x, y, value, numChannels) { + numChannels = numChannels || 4; + var offset = y * this.stride + x * this.pixelSize; + for (var i = 0; i < numChannels; i++) + this.data[offset + i] = value[i]; +}; + +tcuTexture.RGBA8View.prototype.getWidth = function() { return this.width; }; + +tcuTexture.RGBA8View.prototype.getHeight = function() { return this.height; }; + +}); |