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/*-------------------------------------------------------------------------
* 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 tcuTextureUtil.copy of the License at
*
*
* 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.tcuTextureUtil');
goog.require('framework.common.tcuTexture');
goog.require('framework.delibs.debase.deMath');
goog.require('framework.delibs.debase.deRandom');
goog.scope(function() {
var tcuTextureUtil = framework.common.tcuTextureUtil;
var tcuTexture = framework.common.tcuTexture;
var deMath = framework.delibs.debase.deMath;
var deRandom = framework.delibs.debase.deRandom;
var DE_ASSERT = function(x) {
if (!x)
throw new Error('Assert failed');
};
/**
* @param {number} t
* @param {number} minVal
* @param {number} maxVal
* @return {number}
*/
tcuTextureUtil.linearInterpolate = function(t, minVal, maxVal) {
return minVal + (maxVal - minVal) * t;
};
/** tcuTextureUtil.linearChannelToSRGB
* @param {number} cl
* @return {number}
*/
tcuTextureUtil.linearChannelToSRGB = function(cl) {
if (cl <= 0.0)
return 0.0;
else if (cl < 0.0031308)
return 12.92 * cl;
else if (cl < 1.0)
return 1.055 * Math.pow(cl, 0.41666) - 0.055;
else
return 1.0;
};
/**
* Convert sRGB to linear colorspace
* @param {Array<number>} cs
* @return {Array<number>}
*/
tcuTextureUtil.sRGBToLinear = function(cs) {
return [tcuTextureUtil.sRGBChannelToLinear(cs[0]),
tcuTextureUtil.sRGBChannelToLinear(cs[1]),
tcuTextureUtil.sRGBChannelToLinear(cs[2]),
cs[3]];
};
/**
* @param {number} cs
* @return {number}
*/
tcuTextureUtil.sRGBChannelToLinear = function(cs) {
if (cs <= 0.04045)
return cs / 12.92;
else
return Math.pow((cs + 0.055) / 1.055, 2.4);
};
/** tcuTextureUtil.linearToSRGB
* @param {Array<number>} cl
* @return {Array<number>}
*/
tcuTextureUtil.linearToSRGB = function(cl) {
return [tcuTextureUtil.linearChannelToSRGB(cl[0]),
tcuTextureUtil.linearChannelToSRGB(cl[1]),
tcuTextureUtil.linearChannelToSRGB(cl[2]),
cl[3]
];
};
/**
* tcuTextureUtil.getSubregion
* @param {tcuTexture.PixelBufferAccess} access
* @param {number} x
* @param {number} y
* @param {number} z
* @param {number} width
* @param {number} height
* @param {number} depth
* @return {tcuTexture.PixelBufferAccess}
*/
tcuTextureUtil.getSubregion = function(access, x, y, z, width, height, depth) {
DE_ASSERT(deMath.deInBounds32(x, 0, access.getWidth()) && deMath.deInRange32(x + width, x, access.getWidth()));
DE_ASSERT(deMath.deInBounds32(y, 0, access.getHeight()) && deMath.deInRange32(y + height, y, access.getHeight()));
DE_ASSERT(deMath.deInBounds32(z, 0, access.getDepth()) && deMath.deInRange32(z + depth, z, access.getDepth()));
return new tcuTexture.PixelBufferAccess({
format: access.getFormat(),
width: width,
height: height,
depth: depth,
rowPitch: access.getRowPitch(),
slicePitch: access.getSlicePitch(),
offset: access.m_offset + access.getFormat().getPixelSize() * x + access.getRowPitch() * y + access.getSlicePitch() * z,
data: access.getBuffer()
});
};
/**
* @param {tcuTexture.PixelBufferAccess} access
* @param {Array<number>} minVal
* @param {Array<number>} maxVal
*/
tcuTextureUtil.fillWithComponentGradients1D = function(access, minVal, maxVal) {
DE_ASSERT(access.getHeight() == 1);
for (var x = 0; x < access.getWidth(); x++) {
var s = (x + 0.5) / access.getWidth();
var r = tcuTextureUtil.linearInterpolate(s, minVal[0], maxVal[0]);
var g = tcuTextureUtil.linearInterpolate(s, minVal[1], maxVal[1]);
var b = tcuTextureUtil.linearInterpolate(s, minVal[2], maxVal[2]);
var a = tcuTextureUtil.linearInterpolate(s, minVal[3], maxVal[3]);
access.setPixel([r, g, b, a], x, 0);
}
};
/**
* @param {tcuTexture.PixelBufferAccess} access
* @param {Array<number>} minVal
* @param {Array<number>} maxVal
*/
tcuTextureUtil.fillWithComponentGradients2D = function(access, minVal, maxVal) {
for (var y = 0; y < access.getHeight(); y++) {
var t = (y + 0.5) / access.getHeight();
for (var x = 0; x < access.getWidth(); x++) {
var s = (x + 0.5) / access.getWidth();
var r = tcuTextureUtil.linearInterpolate((s + t) * 0.5, minVal[0], maxVal[0]);
var g = tcuTextureUtil.linearInterpolate((s + (1 - t)) * 0.5, minVal[1], maxVal[1]);
var b = tcuTextureUtil.linearInterpolate(((1 - s) + t) * 0.5, minVal[2], maxVal[2]);
var a = tcuTextureUtil.linearInterpolate(((1 - s) + (1 - t)) * 0.5, minVal[3], maxVal[3]);
access.setPixel([r, g, b, a], x, y);
}
}
};
/**
* @param {tcuTexture.PixelBufferAccess} dst
* @param {Array<number>} minVal
* @param {Array<number>} maxVal
*/
tcuTextureUtil.fillWithComponentGradients3D = function(dst, minVal, maxVal) {
for (var z = 0; z < dst.getDepth(); z++) {
var p = (z + 0.5) / dst.getDepth();
var b = tcuTextureUtil.linearInterpolate(p, minVal[2], maxVal[2]);
for (var y = 0; y < dst.getHeight(); y++) {
var t = (y + 0.5) / dst.getHeight();
var g = tcuTextureUtil.linearInterpolate(t, minVal[1], maxVal[1]);
for (var x = 0; x < dst.getWidth(); x++) {
var s = (x + 0.5) / dst.getWidth();
var r = tcuTextureUtil.linearInterpolate(s, minVal[0], maxVal[0]);
var a = tcuTextureUtil.linearInterpolate(1 - (s + t + p) / 3, minVal[3], maxVal[3]);
dst.setPixel([r, g, b, a], x, y, z);
}
}
}
};
/**
* @param {tcuTexture.PixelBufferAccess} access
* @param {Array<number>} minVal
* @param {Array<number>} maxVal
*/
tcuTextureUtil.fillWithComponentGradients = function(access, minVal, maxVal) {
if (access.getHeight() == 1 && access.getDepth() == 1)
tcuTextureUtil.fillWithComponentGradients1D(access, minVal, maxVal);
else if (access.getDepth() == 1)
tcuTextureUtil.fillWithComponentGradients2D(access, minVal, maxVal);
else
tcuTextureUtil.fillWithComponentGradients3D(access, minVal, maxVal);
};
/**
* @param {tcuTexture.PixelBufferAccess} dst
*/
tcuTextureUtil.fillWithRGBAQuads = function(dst) {
checkMessage(dst.getDepth() == 1, 'Depth must be 1');
var width = dst.getWidth();
var height = dst.getHeight();
var left = width / 2;
var top = height / 2;
tcuTextureUtil.getSubregion(dst, 0, 0, 0, left, top, 1).clear([1.0, 0.0, 0.0, 1.0]);
tcuTextureUtil.getSubregion(dst, left, 0, 0, width - left, top, 1).clear([0.0, 1.0, 0.0, 1.0]);
tcuTextureUtil.getSubregion(dst, 0, top, 0, left, height - top, 1).clear([0.0, 0.0, 1.0, 0.0]);
tcuTextureUtil.getSubregion(dst, left, top, 0, width - left, height - top, 1).clear([0.5, 0.5, 0.5, 1.0]);
};
// \todo [2012-11-13 pyry] There is much better metaballs code in CL SIR value generators.
/**
* @param {tcuTexture.PixelBufferAccess} dst
* @param {number} numBalls
* @param {number} seed
*/
tcuTextureUtil.fillWithMetaballs = function(dst, numBalls, seed) {
checkMessage(dst.getDepth() == 1, 'Depth must be 1');
var points = [];
var rnd = new deRandom.Random(seed);
for (var i = 0; i < numBalls; i++) {
var x = rnd.getFloat();
var y = rnd.getFloat();
points[i] = [x, y];
}
for (var y = 0; y < dst.getHeight(); y++)
for (var x = 0; x < dst.getWidth(); x++) {
var p = [x / dst.getWidth(), y / dst.getHeight()];
var sum = 0.0;
for (var pointNdx = 0; pointNdx < points.length; pointNdx++) {
var d = deMath.subtract(p, points[pointNdx]);
var f = 0.01 / (d[0] * d[0] + d[1] * d[1]);
sum += f;
}
dst.setPixel([sum, sum, sum, sum], x, y);
}
};
/**
* Create tcuTextureUtil.TextureFormatInfo.
* @constructor
* @param {Array<number>} valueMin
* @param {Array<number>} valueMax
* @param {Array<number>} lookupScale
* @param {Array<number>} lookupBias
*/
tcuTextureUtil.TextureFormatInfo = function(valueMin, valueMax, lookupScale, lookupBias) {
/** @type {Array<number>} */ this.valueMin = valueMin;
/** @type {Array<number>} */ this.valueMax = valueMax;
/** @type {Array<number>} */ this.lookupScale = lookupScale;
/** @type {Array<number>} */ this.lookupBias = lookupBias;
};
/**
* @param {?tcuTexture.ChannelType} channelType
* @return {Array<number>}
*/
tcuTextureUtil.getChannelValueRange = function(channelType) {
var cMin = 0;
var cMax = 0;
switch (channelType) {
// Signed normalized formats.
case tcuTexture.ChannelType.SNORM_INT8:
case tcuTexture.ChannelType.SNORM_INT16: cMin = -1; cMax = 1; break;
// Unsigned normalized formats.
case tcuTexture.ChannelType.UNORM_INT8:
case tcuTexture.ChannelType.UNORM_INT16:
case tcuTexture.ChannelType.UNORM_SHORT_565:
case tcuTexture.ChannelType.UNORM_SHORT_4444:
case tcuTexture.ChannelType.UNORM_INT_101010:
case tcuTexture.ChannelType.UNORM_INT_1010102_REV: cMin = 0; cMax = 1; break;
// Misc formats.
case tcuTexture.ChannelType.SIGNED_INT8: cMin = -128; cMax = 127; break;
case tcuTexture.ChannelType.SIGNED_INT16: cMin = -32768; cMax = 32767; break;
case tcuTexture.ChannelType.SIGNED_INT32: cMin = -2147483648; cMax = 2147483647; break;
case tcuTexture.ChannelType.UNSIGNED_INT8: cMin = 0; cMax = 255; break;
case tcuTexture.ChannelType.UNSIGNED_INT16: cMin = 0; cMax = 65535; break;
case tcuTexture.ChannelType.UNSIGNED_INT32: cMin = 0; cMax = 4294967295; break;
case tcuTexture.ChannelType.HALF_FLOAT: cMin = -1e3; cMax = 1e3; break;
case tcuTexture.ChannelType.FLOAT: cMin = -1e5; cMax = 1e5; break;
case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: cMin = 0; cMax = 1e4; break;
case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: cMin = 0; cMax = 1e5; break;
default:
DE_ASSERT(false);
}
return [cMin, cMax];
};
/**
* Creates an array by choosing between 'a' and 'b' based on 'cond' array.
* @param {Array | number} a
* @param {Array | number} b
* @param {Array<boolean>} cond Condtions
* @return {Array}
*/
tcuTextureUtil.select = function(a, b, cond) {
/*DE_ASSERT(!(a.length && !b.length)
|| !(!a.length && b.length)
|| !((a.length && b.length) && ((a.length != b.length) || (b.length != cond.length) || (a.length != cond.length))));*/
if (a.length && !b.length) throw new Error('second input parameter is not a vector');
if (!a.length && b.length) throw new Error('first input parameter is not a vector');
if ((a.length && b.length) && ((a.length != b.length) || (b.length != cond.length) || (a.length != cond.length))) throw new Error('different size vectors');
var dst = [];
for (var i = 0; i < cond.length; i++)
if (cond[i]) {
if (a.length) dst.push(a[i]);
else dst.push(a);
} else {
if (b.length) dst.push(b[i]);
else dst.push(b);
}
return dst;
};
/**
* Get standard parameters for testing texture format
*
* Returns tcuTextureUtil.TextureFormatInfo that describes good parameters for exercising
* given TextureFormat. Parameters include value ranges per channel and
* suitable lookup scaling and bias in order to reduce result back to
* 0..1 range.
*
* @param {tcuTexture.TextureFormat} format
* @return {tcuTextureUtil.TextureFormatInfo}
*/
tcuTextureUtil.getTextureFormatInfo = function(format) {
// Special cases.
if (format.isEqual(new tcuTexture.TextureFormat(tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV)))
return new tcuTextureUtil.TextureFormatInfo([0, 0, 0, 0],
[1023, 1023, 1023, 3],
[1 / 1023, 1 / 1023, 1 / 1023, 1 / 3],
[0, 0, 0, 0]);
else if (format.order == tcuTexture.ChannelOrder.D || format.order == tcuTexture.ChannelOrder.DS)
return new tcuTextureUtil.TextureFormatInfo([0, 0, 0, 0],
[1, 1, 1, 0],
[1, 1, 1, 1],
[0, 0, 0, 0]); // Depth / stencil formats.
else if (format.isEqual(new tcuTexture.TextureFormat(tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.UNORM_SHORT_5551)))
return new tcuTextureUtil.TextureFormatInfo([0, 0, 0, 0.5],
[1, 1, 1, 1.5],
[1, 1, 1, 1],
[0, 0, 0, 0]);
var cRange = tcuTextureUtil.getChannelValueRange(format.type);
var chnMask = null;
switch (format.order) {
case tcuTexture.ChannelOrder.R: chnMask = [true, false, false, false]; break;
case tcuTexture.ChannelOrder.A: chnMask = [false, false, false, true]; break;
case tcuTexture.ChannelOrder.L: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.LA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.RG: chnMask = [true, true, false, false]; break;
case tcuTexture.ChannelOrder.RGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.RGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.sRGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.sRGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.D: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.DS: chnMask = [true, true, true, true]; break;
default:
DE_ASSERT(false);
}
var scale = 1 / (cRange[1] - cRange[0]);
var bias = -cRange[0] * scale;
return new tcuTextureUtil.TextureFormatInfo(tcuTextureUtil.select(cRange[0], 0, chnMask),
tcuTextureUtil.select(cRange[1], 0, chnMask),
tcuTextureUtil.select(scale, 1, chnMask),
tcuTextureUtil.select(bias, 0, chnMask));
};
/** tcuTextureUtil.getChannelBitDepth
* @param {?tcuTexture.ChannelType} channelType
* @return {Array<number>}
*/
tcuTextureUtil.getChannelBitDepth = function(channelType) {
switch (channelType) {
case tcuTexture.ChannelType.SNORM_INT8: return [8, 8, 8, 8];
case tcuTexture.ChannelType.SNORM_INT16: return [16, 16, 16, 16];
case tcuTexture.ChannelType.SNORM_INT32: return [32, 32, 32, 32];
case tcuTexture.ChannelType.UNORM_INT8: return [8, 8, 8, 8];
case tcuTexture.ChannelType.UNORM_INT16: return [16, 16, 16, 16];
case tcuTexture.ChannelType.UNORM_INT32: return [32, 32, 32, 32];
case tcuTexture.ChannelType.UNORM_SHORT_565: return [5, 6, 5, 0];
case tcuTexture.ChannelType.UNORM_SHORT_4444: return [4, 4, 4, 4];
case tcuTexture.ChannelType.UNORM_SHORT_555: return [5, 5, 5, 0];
case tcuTexture.ChannelType.UNORM_SHORT_5551: return [5, 5, 5, 1];
case tcuTexture.ChannelType.UNORM_INT_101010: return [10, 10, 10, 0];
case tcuTexture.ChannelType.UNORM_INT_1010102_REV: return [10, 10, 10, 2];
case tcuTexture.ChannelType.SIGNED_INT8: return [8, 8, 8, 8];
case tcuTexture.ChannelType.SIGNED_INT16: return [16, 16, 16, 16];
case tcuTexture.ChannelType.SIGNED_INT32: return [32, 32, 32, 32];
case tcuTexture.ChannelType.UNSIGNED_INT8: return [8, 8, 8, 8];
case tcuTexture.ChannelType.UNSIGNED_INT16: return [16, 16, 16, 16];
case tcuTexture.ChannelType.UNSIGNED_INT32: return [32, 32, 32, 32];
case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV: return [10, 10, 10, 2];
case tcuTexture.ChannelType.UNSIGNED_INT_24_8: return [24, 0, 0, 8];
case tcuTexture.ChannelType.HALF_FLOAT: return [16, 16, 16, 16];
case tcuTexture.ChannelType.FLOAT: return [32, 32, 32, 32];
case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: return [11, 11, 10, 0];
case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV: return [9, 9, 9, 0];
case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: return [32, 0, 0, 8];
default:
DE_ASSERT(false);
return [0, 0, 0, 0];
}
};
/** tcuTextureUtil.getTextureFormatBitDepth
* @param {tcuTexture.TextureFormat} format
* @return {Array<number>}
*/
tcuTextureUtil.getTextureFormatBitDepth = function(format) {
/** @type {Array<number>} */ var chnBits = tcuTextureUtil.getChannelBitDepth(format.type); // IVec4
/** @type {Array<boolean>} */ var chnMask = [false, false, false, false]; // BVec4
/** @type {Array<number>} */ var chnSwz = [0, 1, 2, 3]; // IVec4
switch (format.order) {
case tcuTexture.ChannelOrder.R: chnMask = [true, false, false, false]; break;
case tcuTexture.ChannelOrder.A: chnMask = [false, false, false, true]; break;
case tcuTexture.ChannelOrder.RA: chnMask = [true, false, false, true]; break;
case tcuTexture.ChannelOrder.L: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.I: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.LA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.RG: chnMask = [true, true, false, false]; break;
case tcuTexture.ChannelOrder.RGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.RGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.BGRA: chnMask = [true, true, true, true]; chnSwz = [2, 1, 0, 3]; break;
case tcuTexture.ChannelOrder.ARGB: chnMask = [true, true, true, true]; chnSwz = [1, 2, 3, 0]; break;
case tcuTexture.ChannelOrder.sRGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.sRGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.D: chnMask = [true, false, false, false]; break;
case tcuTexture.ChannelOrder.DS: chnMask = [true, false, false, true]; break;
case tcuTexture.ChannelOrder.S: chnMask = [false, false, false, true]; break;
default:
DE_ASSERT(false);
}
return tcuTextureUtil.select(deMath.swizzle(chnBits, [chnSwz[0], chnSwz[1], chnSwz[2], chnSwz[3]]), [0, 0, 0, 0], chnMask);
};
/** tcuTextureUtil.fillWithGrid
* @const @param {tcuTexture.PixelBufferAccess} access
* @param {number} cellSize
* @param {Array<number>} colorA
* @param {Array<number>} colorB
*/
tcuTextureUtil.fillWithGrid = function(access, cellSize, colorA, colorB) {
if (access.getHeight() == 1 && access.getDepth() == 1)
tcuTextureUtil.fillWithGrid1D(access, cellSize, colorA, colorB);
else if (access.getDepth() == 1)
tcuTextureUtil.fillWithGrid2D(access, cellSize, colorA, colorB);
else
tcuTextureUtil.fillWithGrid3D(access, cellSize, colorA, colorB);
};
/** tcuTextureUtil.fillWithGrid1D
* @const @param {tcuTexture.PixelBufferAccess} access
* @param {number} cellSize
* @param {Array<number>} colorA
* @param {Array<number>} colorB
*/
tcuTextureUtil.fillWithGrid1D = function(access, cellSize, colorA, colorB) {
for (var x = 0; x < access.getWidth(); x++) {
var mx = Math.floor(x / cellSize) % 2;
if (mx)
access.setPixel(colorB, x, 0);
else
access.setPixel(colorA, x, 0);
}
};
/** tcuTextureUtil.fillWithGrid2D
* @const @param {tcuTexture.PixelBufferAccess} access
* @param {number} cellSize
* @param {Array<number>} colorA
* @param {Array<number>} colorB
*/
tcuTextureUtil.fillWithGrid2D = function(access, cellSize, colorA, colorB) {
for (var y = 0; y < access.getHeight(); y++)
for (var x = 0; x < access.getWidth(); x++) {
var mx = Math.floor(x / cellSize) % 2;
var my = Math.floor(y / cellSize) % 2;
if (mx ^ my)
access.setPixel(colorB, x, y);
else
access.setPixel(colorA, x, y);
}
};
/** tcuTextureUtil.fillWithGrid3D
* @const @param {tcuTexture.PixelBufferAccess} access
* @param {number} cellSize
* @param {Array<number>} colorA
* @param {Array<number>} colorB
*/
tcuTextureUtil.fillWithGrid3D = function(access, cellSize, colorA, colorB) {
for (var z = 0; z < access.getDepth(); z++)
for (var y = 0; y < access.getHeight(); y++)
for (var x = 0; x < access.getWidth(); x++) {
var mx = Math.floor(x / cellSize) % 2;
var my = Math.floor(y / cellSize) % 2;
var mz = Math.floor(z / cellSize) % 2;
if (mx ^ my ^ mz)
access.setPixel(colorB, x, y, z);
else
access.setPixel(colorA, x, y, z);
}
};
/**
* @const @param {tcuTexture.TextureFormat} format
* @return {Array<number>}
*/
tcuTextureUtil.getTextureFormatMantissaBitDepth = function(format) {
/** @type {Array<number>} */ var chnBits = tcuTextureUtil.getChannelMantissaBitDepth(format.type);
/** @type {Array<boolean>} */ var chnMask = [false, false, false, false];
/** @type {Array<number>} */ var chnSwz = [0, 1, 2, 3];
switch (format.order) {
case tcuTexture.ChannelOrder.R: chnMask = [true, false, false, false]; break;
case tcuTexture.ChannelOrder.A: chnMask = [false, false, false, true]; break;
case tcuTexture.ChannelOrder.RA: chnMask = [true, false, false, true]; break;
case tcuTexture.ChannelOrder.L: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.I: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.LA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.RG: chnMask = [true, true, false, false]; break;
case tcuTexture.ChannelOrder.RGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.RGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.BGRA: chnMask = [true, true, true, true]; chnSwz = [2, 1, 0, 3]; break;
case tcuTexture.ChannelOrder.ARGB: chnMask = [true, true, true, true]; chnSwz = [1, 2, 3, 0]; break;
case tcuTexture.ChannelOrder.sRGB: chnMask = [true, true, true, false]; break;
case tcuTexture.ChannelOrder.sRGBA: chnMask = [true, true, true, true]; break;
case tcuTexture.ChannelOrder.D: chnMask = [true, false, false, false]; break;
case tcuTexture.ChannelOrder.DS: chnMask = [true, false, false, true]; break;
case tcuTexture.ChannelOrder.S: chnMask = [false, false, false, true]; break;
default:
DE_ASSERT(false);
}
return tcuTextureUtil.select(deMath.swizzle(chnBits, [chnSwz[0], chnSwz[1], chnSwz[2], chnSwz[3]]), [0, 0, 0, 0], chnMask);
};
/**
* @param {?tcuTexture.ChannelType} channelType
* @return {Array<number>}
*/
tcuTextureUtil.getChannelMantissaBitDepth = function(channelType) {
switch (channelType) {
case tcuTexture.ChannelType.SNORM_INT8:
case tcuTexture.ChannelType.SNORM_INT16:
case tcuTexture.ChannelType.SNORM_INT32:
case tcuTexture.ChannelType.UNORM_INT8:
case tcuTexture.ChannelType.UNORM_INT16:
case tcuTexture.ChannelType.UNORM_INT32:
case tcuTexture.ChannelType.UNORM_SHORT_565:
case tcuTexture.ChannelType.UNORM_SHORT_4444:
case tcuTexture.ChannelType.UNORM_SHORT_555:
case tcuTexture.ChannelType.UNORM_SHORT_5551:
case tcuTexture.ChannelType.UNORM_INT_101010:
case tcuTexture.ChannelType.UNORM_INT_1010102_REV:
case tcuTexture.ChannelType.SIGNED_INT8:
case tcuTexture.ChannelType.SIGNED_INT16:
case tcuTexture.ChannelType.SIGNED_INT32:
case tcuTexture.ChannelType.UNSIGNED_INT8:
case tcuTexture.ChannelType.UNSIGNED_INT16:
case tcuTexture.ChannelType.UNSIGNED_INT32:
case tcuTexture.ChannelType.UNSIGNED_INT_1010102_REV:
case tcuTexture.ChannelType.UNSIGNED_INT_24_8:
case tcuTexture.ChannelType.UNSIGNED_INT_999_E5_REV:
return tcuTextureUtil.getChannelBitDepth(channelType);
case tcuTexture.ChannelType.HALF_FLOAT: return [10, 10, 10, 10];
case tcuTexture.ChannelType.FLOAT: return [23, 23, 23, 23];
case tcuTexture.ChannelType.UNSIGNED_INT_11F_11F_10F_REV: return [6, 6, 5, 0];
case tcuTexture.ChannelType.FLOAT_UNSIGNED_INT_24_8_REV: return [23, 0, 0, 8];
default:
throw new Error('Invalid channelType: ' + channelType);
}
};
/**
* @param {tcuTexture.PixelBufferAccess} dst
* @param {tcuTexture.ConstPixelBufferAccess} src
*/
tcuTextureUtil.copy = function(dst, src) {
var width = dst.getWidth();
var height = dst.getHeight();
var depth = dst.getDepth();
DE_ASSERT(src.getWidth() == width && src.getHeight() == height && src.getDepth() == depth);
if (src.getFormat().isEqual(dst.getFormat())) {
var srcData = src.getDataPtr();
var dstData = dst.getDataPtr();
if (srcData.length == dstData.length) {
dstData.set(srcData);
return;
}
}
var srcClass = tcuTexture.getTextureChannelClass(src.getFormat().type);
var dstClass = tcuTexture.getTextureChannelClass(dst.getFormat().type);
var srcIsInt = srcClass == tcuTexture.TextureChannelClass.SIGNED_INTEGER || srcClass == tcuTexture.TextureChannelClass.UNSIGNED_INTEGER;
var dstIsInt = dstClass == tcuTexture.TextureChannelClass.SIGNED_INTEGER || dstClass == tcuTexture.TextureChannelClass.UNSIGNED_INTEGER;
if (srcIsInt && dstIsInt) {
for (var z = 0; z < depth; z++)
for (var y = 0; y < height; y++)
for (var x = 0; x < width; x++)
dst.setPixelInt(src.getPixelInt(x, y, z), x, y, z);
} else {
for (var z = 0; z < depth; z++)
for (var y = 0; y < height; y++)
for (var x = 0; x < width; x++)
dst.setPixel(src.getPixel(x, y, z), x, y, z);
}
};
/**
* @param {tcuTexture.ConstPixelBufferAccess} access
*/
tcuTextureUtil.estimatePixelValueRange = function(access) {
var format = access.getFormat();
switch (format.type) {
case tcuTexture.ChannelType.UNORM_INT8:
case tcuTexture.ChannelType.UNORM_INT16:
// Normalized unsigned formats.
return [
[0, 0, 0, 0],
[1, 1, 1, 1]
];
case tcuTexture.ChannelType.SNORM_INT8:
case tcuTexture.ChannelType.SNORM_INT16:
// Normalized signed formats.
return [
[-1, -1, -1, -1],
[1, 1, 1, 1]
];
default:
// \note Samples every 4/8th pixel.
var minVal = [Infinity, Infinity, Infinity, Infinity];
var maxVal = [-Infinity, -Infinity, -Infinity, -Infinity];
for (var z = 0; z < access.getDepth(); z += 2) {
for (var y = 0; y < access.getHeight(); y += 2) {
for (var x = 0; x < access.getWidth(); x += 2) {
var p = access.getPixel(x, y, z);
minVal[0] = Math.min(minVal[0], p[0]);
minVal[1] = Math.min(minVal[1], p[1]);
minVal[2] = Math.min(minVal[2], p[2]);
minVal[3] = Math.min(minVal[3], p[3]);
maxVal[0] = Math.max(maxVal[0], p[0]);
maxVal[1] = Math.max(maxVal[1], p[1]);
maxVal[2] = Math.max(maxVal[2], p[2]);
maxVal[3] = Math.max(maxVal[3], p[3]);
}
}
}
return [minVal, maxVal];
}
};
/**
* @param {tcuTexture.ConstPixelBufferAccess} access
* @return {{scale: Array<number>, bias: Array<number>}}
*/
tcuTextureUtil.computePixelScaleBias = function(access) {
var limits = tcuTextureUtil.estimatePixelValueRange(access);
var minVal = limits[0];
var maxVal = limits[1];
var scale = [1, 1, 1, 1];
var bias = [0, 0, 0, 0];
var eps = 0.0001;
for (var c = 0; c < 4; c++) {
if (maxVal[c] - minVal[c] < eps) {
scale[c] = (maxVal[c] < eps) ? 1 : (1 / maxVal[c]);
bias[c] = (c == 3) ? (1 - maxVal[c] * scale[c]) : (0 - minVal[c] * scale[c]);
} else {
scale[c] = 1 / (maxVal[c] - minVal[c]);
bias[c] = 0 - minVal[c] * scale[c];
}
}
return {
scale: scale,
bias: bias
};
};
});