1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
/*-------------------------------------------------------------------------
* 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.tcuBilinearImageCompare');
goog.require('framework.common.tcuRGBA');
goog.require('framework.common.tcuTexture');
goog.require('framework.delibs.debase.deMath');
goog.scope(function() {
var tcuBilinearImageCompare = framework.common.tcuBilinearImageCompare;
var deMath = framework.delibs.debase.deMath;
var tcuTexture = framework.common.tcuTexture;
var tcuRGBA = framework.common.tcuRGBA;
var DE_ASSERT = function(x) {
if (!x)
throw new Error('Assert failed');
};
// for bilinear interpolation
/** @const {number} */ tcuBilinearImageCompare.NUM_SUBPIXEL_BITS = 8;
// Algorithm assumes that colors are packed to 32-bit values as dictated by
// tcu::RGBA::*_SHIFT values.
function UintRGBA8_R(color) {
return (color >> 24) & 0xff;
}
function UintRGBA8_G(color) {
return (color >> 16) & 0xff;
}
function UintRGBA8_B(color) {
return (color >> 8) & 0xff;
}
function UintRGBA8_A(color) {
return color & 0xff;
}
/**
* @param {number} fx1 deUint32
* @param {number} fy1 deUint32
* @param {number} p00 deUint8
* @param {number} p01 deUint8
* @param {number} p10 deUint8
* @param {number} p11 deUint8
* @return {number} deUint8
*/
tcuBilinearImageCompare.interpolateChannel = function(fx1, fy1, p00, p01, p10, p11) {
/** @const {number} */ var fx0 = (1 << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS) - fx1;
/** @const {number} */ var fy0 = (1 << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS) - fy1;
/** @const {number} */
var half = 1 << (tcuBilinearImageCompare.NUM_SUBPIXEL_BITS * 2 - 1);
/** @const {number} */ var sum =
(fx0 * fy0 * p00) +
(fx1 * fy0 * p10) +
(fx0 * fy1 * p01) +
(fx1 * fy1 * p11);
/** @const {number} */
var rounded = (sum + half) >> (tcuBilinearImageCompare.NUM_SUBPIXEL_BITS * 2);
DE_ASSERT(deMath.deInRange32(rounded, 0, 0xff));
return rounded;
};
tcuBilinearImageCompare.compareUintRGBA8Threshold = function(a, b, thr) {
if (a == b)
return true;
return (Math.abs(UintRGBA8_R(a) - UintRGBA8_R(b)) <= thr.getRed() &&
Math.abs(UintRGBA8_G(a) - UintRGBA8_G(b)) <= thr.getGreen() &&
Math.abs(UintRGBA8_B(a) - UintRGBA8_B(b)) <= thr.getBlue() &&
Math.abs(UintRGBA8_A(a) - UintRGBA8_A(b)) <= thr.getAlpha());
};
/**
* @param {tcuTexture.RGBA8View} view
* @param {number} u
* @param {number} v
* @return {number}
*/
tcuBilinearImageCompare.bilinearSampleUintRGBA8 = function(view, u, v) {
/** @type {number} */ var x0 = u >> tcuBilinearImageCompare.NUM_SUBPIXEL_BITS;
/** @type {number} */ var y0 = v >> tcuBilinearImageCompare.NUM_SUBPIXEL_BITS;
/** @type {number} */ var x1 = x0 + 1;
/** @type {number} */ var y1 = y0 + 1;
DE_ASSERT(x1 < view.getWidth());
DE_ASSERT(y1 < view.getHeight());
/** @type {number} */ var fx1 = u - (x0 << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS);
/** @type {number} */ var fy1 = v - (y0 << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS);
/** @type {Array<number>} */ var channelsP00 = view.readUintRGBA8(x0, y0);
/** @type {Array<number>} */ var channelsP10 = view.readUintRGBA8(x1, y0);
/** @type {Array<number>} */ var channelsP01 = view.readUintRGBA8(x0, y1);
/** @type {Array<number>} */ var channelsP11 = view.readUintRGBA8(x1, y1);
/** @type {number} */ var res = 0;
res = (tcuBilinearImageCompare.interpolateChannel(fx1, fy1, UintRGBA8_R(channelsP00),
UintRGBA8_R(channelsP01), UintRGBA8_R(channelsP10), UintRGBA8_R(channelsP11)) & 0xff) << 24;
res += (tcuBilinearImageCompare.interpolateChannel(fx1, fy1, UintRGBA8_G(channelsP00),
UintRGBA8_G(channelsP01), UintRGBA8_G(channelsP10), UintRGBA8_G(channelsP11)) & 0xff) << 16;
res += (tcuBilinearImageCompare.interpolateChannel(fx1, fy1, UintRGBA8_B(channelsP00),
UintRGBA8_B(channelsP01), UintRGBA8_B(channelsP10), UintRGBA8_B(channelsP11)) & 0xff) << 8;
res += tcuBilinearImageCompare.interpolateChannel(fx1, fy1, UintRGBA8_A(channelsP00),
UintRGBA8_A(channelsP01), UintRGBA8_A(channelsP10), UintRGBA8_A(channelsP11)) & 0xff;
return res;
};
/**
* @param {tcuTexture.RGBA8View} reference
* @param {tcuTexture.RGBA8View} result
* @param {tcuRGBA.RGBA} threshold
* @param {number} x
* @param {number} y
* @return {boolean}
*/
tcuBilinearImageCompare.comparePixelRGBA8 = function(reference, result, threshold, x, y) {
/** @const {tcuRGBA.RGBA} */ var resPix = result.readUintRGBA8(x, y);
// Step 1: Compare result pixel to 3x3 neighborhood pixels in reference.
/** @const {number} */ var x0 = Math.max(x - 1, 0);
/** @const {number} */ var x1 = x;
/** @const {number} */
var x2 = Math.min(x + 1, reference.getWidth() - 1);
/** @const {number} */ var y0 = Math.max(y - 1, 0);
/** @const {number} */ var y1 = y;
/** @const {number} */
var y2 = Math.min(y + 1, reference.getHeight() - 1);
//tcuBilinearImageCompare.readRGBA8List (reference, x0, y0, x2, y2);
if (tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x1, y1), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x0, y1), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x2, y1), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x0, y0), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x1, y0), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x2, y0), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x0, y2), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x1, y2), threshold) ||
tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, reference.readUintRGBA8(x2, y2), threshold))
return true;
// Step 2: Compare using bilinear sampling.
// \todo [pyry] Optimize sample positions!
/** @const {Array<Array<number>>} */ var s_offsets = [
[226, 186],
[335, 235],
[279, 334],
[178, 272],
[112, 202],
[306, 117],
[396, 299],
[206, 382],
[146, 96],
[423, 155],
[361, 412],
[84, 339],
[48, 130],
[367, 43],
[455, 367],
[105, 439],
[83, 46],
[217, 24],
[461, 71],
[450, 459],
[239, 469],
[67, 267],
[459, 255],
[13, 416],
[10, 192],
[141, 502],
[503, 304],
[380, 506]
];
for (var sampleNdx = 0; sampleNdx < s_offsets.length; sampleNdx++) {
/** @const {number} */
var u = ((x - 1) << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS) + s_offsets[sampleNdx][0];
/** @const {number} */
var v = ((y - 1) << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS) + s_offsets[sampleNdx][1];
if (!deMath.deInBounds32(u, 0, (reference.getWidth() - 1) << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS) ||
!deMath.deInBounds32(v, 0, (reference.getHeight() - 1) << tcuBilinearImageCompare.NUM_SUBPIXEL_BITS))
continue;
if (tcuBilinearImageCompare.compareUintRGBA8Threshold(resPix, tcuBilinearImageCompare.bilinearSampleUintRGBA8(reference, u, v), threshold))
return true;
}
return false;
};
/**
* @param {tcuTexture.RGBA8View} reference
* @param {tcuTexture.RGBA8View} result
* @param {tcuTexture.PixelBufferAccess} errorMask
* @param {tcuRGBA.RGBA} threshold
* @return {boolean}
*/
tcuBilinearImageCompare.bilinearCompareRGBA8 = function(reference, result, errorMask, threshold) {
DE_ASSERT(reference.getFormat().isEqual(new tcuTexture.TextureFormat(
tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.UNORM_INT8)));
DE_ASSERT(result.getFormat().isEqual(new tcuTexture.TextureFormat(
tcuTexture.ChannelOrder.RGBA, tcuTexture.ChannelType.UNORM_INT8)));
// Clear error mask first to green (faster this way).
errorMask.clear([0.0, 1.0, 0.0, 1.0]);
/** @type {boolean} */ var allOk = true;
for (var y = 0; y < reference.getHeight(); y++) {
for (var x = 0; x < reference.getWidth(); x++) {
if (!tcuBilinearImageCompare.comparePixelRGBA8(reference, result, threshold, x, y) &&
!tcuBilinearImageCompare.comparePixelRGBA8(result, reference, threshold, x, y)) {
allOk = false;
errorMask.setPixel([1.0, 0.0, 0.0, 1.0], x, y);
}
}
}
return allOk;
};
/**
* @param {tcuTexture.ConstPixelBufferAccess} reference
* @param {tcuTexture.ConstPixelBufferAccess} result
* @param {tcuTexture.PixelBufferAccess} errorMask
* @param {tcuRGBA.RGBA} threshold
* @return {boolean}
*/
tcuBilinearImageCompare.bilinearCompare = function(reference, result, errorMask, threshold) {
assertMsgOptions(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight() && result.getDepth() == reference.getDepth(),
'Reference and result images have different dimensions', false, true);
assertMsgOptions(errorMask.getWidth() == reference.getWidth() && errorMask.getHeight() == reference.getHeight() && errorMask.getDepth() == reference.getDepth(),
'Reference and error mask images have different dimensions', false, true);
/** @type {boolean} */ var isEqual = reference.getFormat().isEqual(
new tcuTexture.TextureFormat(
tcuTexture.ChannelOrder.RGBA,
tcuTexture.ChannelType.UNORM_INT8));
if (isEqual) {
/** @type {tcuTexture.RGBA8View} */ var refView = new tcuTexture.RGBA8View(reference);
/** @type {tcuTexture.RGBA8View} */ var resView = new tcuTexture.RGBA8View(result);
return tcuBilinearImageCompare.bilinearCompareRGBA8(refView, resView, errorMask, threshold);
} else
throw new Error('Unsupported format for bilinear comparison');
};
});
|
