1 /*-------------------------------------------------------------------------
2 * drawElements Quality Program Tester Core
3 * ----------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Texture utilities.
22 *//*--------------------------------------------------------------------*/
23
24 #include "tcuTextureUtil.hpp"
25 #include "tcuVectorUtil.hpp"
26 #include "deRandom.hpp"
27 #include "deMath.h"
28 #include "deMemory.h"
29
30 #include <limits>
31
32 namespace tcu
33 {
34
sRGBChannelToLinear(float cs)35 static inline float sRGBChannelToLinear (float cs)
36 {
37 if (cs <= 0.04045)
38 return cs / 12.92f;
39 else
40 return deFloatPow((cs + 0.055f) / 1.055f, 2.4f);
41 }
42
43 static const deUint32 s_srgb8Lut[256] =
44 {
45 #include "tcuSRGB8Lut.inl"
46 };
47
sRGB8ChannelToLinear(deUint32 cs)48 static inline float sRGB8ChannelToLinear (deUint32 cs)
49 {
50 DE_ASSERT(cs < 256);
51
52 // \note This triggers UB, but in practice it doesn't cause any problems
53 return ((const float*)s_srgb8Lut)[cs];
54 }
55
linearChannelToSRGB(float cl)56 static inline float linearChannelToSRGB (float cl)
57 {
58 if (cl <= 0.0f)
59 return 0.0f;
60 else if (cl < 0.0031308f)
61 return 12.92f*cl;
62 else if (cl < 1.0f)
63 return 1.055f*deFloatPow(cl, 0.41666f) - 0.055f;
64 else
65 return 1.0f;
66 }
67
68 //! Convert sRGB to linear colorspace
sRGBToLinear(const Vec4 & cs)69 Vec4 sRGBToLinear (const Vec4& cs)
70 {
71 return Vec4(sRGBChannelToLinear(cs[0]),
72 sRGBChannelToLinear(cs[1]),
73 sRGBChannelToLinear(cs[2]),
74 cs[3]);
75 }
76
sRGB8ToLinear(const UVec4 & cs)77 Vec4 sRGB8ToLinear (const UVec4& cs)
78 {
79 return Vec4(sRGB8ChannelToLinear(cs[0]),
80 sRGB8ChannelToLinear(cs[1]),
81 sRGB8ChannelToLinear(cs[2]),
82 1.0f);
83 }
84
sRGBA8ToLinear(const UVec4 & cs)85 Vec4 sRGBA8ToLinear (const UVec4& cs)
86 {
87 return Vec4(sRGB8ChannelToLinear(cs[0]),
88 sRGB8ChannelToLinear(cs[1]),
89 sRGB8ChannelToLinear(cs[2]),
90 (float)cs[3] / 255.0f);
91 }
92
93 //! Convert from linear to sRGB colorspace
linearToSRGB(const Vec4 & cl)94 Vec4 linearToSRGB (const Vec4& cl)
95 {
96 return Vec4(linearChannelToSRGB(cl[0]),
97 linearChannelToSRGB(cl[1]),
98 linearChannelToSRGB(cl[2]),
99 cl[3]);
100 }
101
isSRGB(TextureFormat format)102 bool isSRGB (TextureFormat format)
103 {
104 // make sure to update this if type table is updated
105 DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 21);
106
107 return format.order == TextureFormat::sR ||
108 format.order == TextureFormat::sRG ||
109 format.order == TextureFormat::sRGB ||
110 format.order == TextureFormat::sRGBA ||
111 format.order == TextureFormat::sBGR ||
112 format.order == TextureFormat::sBGRA;
113 }
114
linearToSRGBIfNeeded(const TextureFormat & format,const tcu::Vec4 & color)115 tcu::Vec4 linearToSRGBIfNeeded (const TextureFormat& format, const tcu::Vec4& color)
116 {
117 return isSRGB(format) ? linearToSRGB(color) : color;
118 }
119
isCombinedDepthStencilType(TextureFormat::ChannelType type)120 bool isCombinedDepthStencilType (TextureFormat::ChannelType type)
121 {
122 // make sure to update this if type table is updated
123 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
124
125 return type == TextureFormat::UNSIGNED_INT_16_8_8 ||
126 type == TextureFormat::UNSIGNED_INT_24_8 ||
127 type == TextureFormat::UNSIGNED_INT_24_8_REV ||
128 type == TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV;
129 }
130
hasStencilComponent(TextureFormat::ChannelOrder order)131 bool hasStencilComponent (TextureFormat::ChannelOrder order)
132 {
133 DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 21);
134
135 switch (order)
136 {
137 case TextureFormat::S:
138 case TextureFormat::DS:
139 return true;
140
141 default:
142 return false;
143 }
144 }
145
hasDepthComponent(TextureFormat::ChannelOrder order)146 bool hasDepthComponent (TextureFormat::ChannelOrder order)
147 {
148 DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 21);
149
150 switch (order)
151 {
152 case TextureFormat::D:
153 case TextureFormat::DS:
154 return true;
155
156 default:
157 return false;
158 }
159 }
160
161 //! Get texture channel class for format
getTextureChannelClass(TextureFormat::ChannelType channelType)162 TextureChannelClass getTextureChannelClass (TextureFormat::ChannelType channelType)
163 {
164 // make sure this table is updated if format table is updated
165 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
166
167 switch (channelType)
168 {
169 case TextureFormat::SNORM_INT8: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
170 case TextureFormat::SNORM_INT16: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
171 case TextureFormat::SNORM_INT32: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
172 case TextureFormat::UNORM_INT8: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
173 case TextureFormat::UNORM_INT16: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
174 case TextureFormat::UNORM_INT24: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
175 case TextureFormat::UNORM_INT32: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
176 case TextureFormat::UNORM_BYTE_44: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
177 case TextureFormat::UNORM_SHORT_565: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
178 case TextureFormat::UNORM_SHORT_555: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
179 case TextureFormat::UNORM_SHORT_4444: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
180 case TextureFormat::UNORM_SHORT_5551: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
181 case TextureFormat::UNORM_SHORT_1555: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
182 case TextureFormat::UNSIGNED_BYTE_44: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
183 case TextureFormat::UNSIGNED_SHORT_565: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
184 case TextureFormat::UNSIGNED_SHORT_4444: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
185 case TextureFormat::UNSIGNED_SHORT_5551: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
186 case TextureFormat::UNORM_INT_101010: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
187 case TextureFormat::SNORM_INT_1010102_REV: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
188 case TextureFormat::UNORM_INT_1010102_REV: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
189 case TextureFormat::SIGNED_INT_1010102_REV: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
190 case TextureFormat::UNSIGNED_INT_1010102_REV: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
191 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return TEXTURECHANNELCLASS_FLOATING_POINT;
192 case TextureFormat::UNSIGNED_INT_999_E5_REV: return TEXTURECHANNELCLASS_FLOATING_POINT;
193 case TextureFormat::UNSIGNED_INT_16_8_8: return TEXTURECHANNELCLASS_LAST; //!< packed unorm16-x8-uint8
194 case TextureFormat::UNSIGNED_INT_24_8: return TEXTURECHANNELCLASS_LAST; //!< packed unorm24-uint8
195 case TextureFormat::UNSIGNED_INT_24_8_REV: return TEXTURECHANNELCLASS_LAST; //!< packed unorm24-uint8
196 case TextureFormat::SIGNED_INT8: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
197 case TextureFormat::SIGNED_INT16: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
198 case TextureFormat::SIGNED_INT32: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
199 case TextureFormat::SIGNED_INT64: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
200 case TextureFormat::UNSIGNED_INT8: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
201 case TextureFormat::UNSIGNED_INT16: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
202 case TextureFormat::UNSIGNED_INT24: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
203 case TextureFormat::UNSIGNED_INT32: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
204 case TextureFormat::UNSIGNED_INT64: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
205 case TextureFormat::HALF_FLOAT: return TEXTURECHANNELCLASS_FLOATING_POINT;
206 case TextureFormat::FLOAT: return TEXTURECHANNELCLASS_FLOATING_POINT;
207 case TextureFormat::FLOAT64: return TEXTURECHANNELCLASS_FLOATING_POINT;
208 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: return TEXTURECHANNELCLASS_LAST; //!< packed float32-pad24-uint8
209 case TextureFormat::UNORM_SHORT_10: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
210 case TextureFormat::UNORM_SHORT_12: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
211 case TextureFormat::USCALED_INT8: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
212 case TextureFormat::USCALED_INT16: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
213 case TextureFormat::SSCALED_INT8: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
214 case TextureFormat::SSCALED_INT16: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
215 case TextureFormat::USCALED_INT_1010102_REV: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
216 case TextureFormat::SSCALED_INT_1010102_REV: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
217 default:
218 DE_FATAL("Unknown channel type");
219 return TEXTURECHANNELCLASS_LAST;
220 }
221 }
222
isAccessValid(TextureFormat format,TextureAccessType type)223 bool isAccessValid (TextureFormat format, TextureAccessType type)
224 {
225 DE_ASSERT(isValid(format));
226
227 if (format.order == TextureFormat::DS)
228 {
229 // It is never allowed to access combined depth-stencil format with getPixel().
230 // Instead either getPixDepth() or getPixStencil(), or effective depth- or stencil-
231 // access must be used.
232 return false;
233 }
234 else if (format.order == TextureFormat::D)
235 return type == TEXTUREACCESSTYPE_FLOAT;
236 else if (format.order == TextureFormat::S)
237 return type == TEXTUREACCESSTYPE_UNSIGNED_INT;
238 else
239 {
240 // A few packed color formats have access type restrictions
241 if (format.type == TextureFormat::UNSIGNED_INT_11F_11F_10F_REV ||
242 format.type == TextureFormat::UNSIGNED_INT_999_E5_REV)
243 return type == TEXTUREACCESSTYPE_FLOAT;
244 else
245 return true;
246 }
247 }
248
249 /*--------------------------------------------------------------------*//*!
250 * \brief Get access to subregion of pixel buffer
251 * \param access Parent access object
252 * \param x X offset
253 * \param y Y offset
254 * \param z Z offset
255 * \param width Width
256 * \param height Height
257 * \param depth Depth
258 * \return Access object that targets given subregion of parent access object
259 *//*--------------------------------------------------------------------*/
getSubregion(const ConstPixelBufferAccess & access,int x,int y,int z,int width,int height,int depth)260 ConstPixelBufferAccess getSubregion (const ConstPixelBufferAccess& access, int x, int y, int z, int width, int height, int depth)
261 {
262 DE_ASSERT(de::inBounds(x, 0, access.getWidth()));
263 DE_ASSERT(de::inRange(x+width, x+1, access.getWidth()));
264
265 DE_ASSERT(de::inBounds(y, 0, access.getHeight()));
266 DE_ASSERT(de::inRange(y+height, y+1, access.getHeight()));
267
268 DE_ASSERT(de::inBounds(z, 0, access.getDepth()));
269 DE_ASSERT(de::inRange(z+depth, z+1, access.getDepth()));
270
271 return ConstPixelBufferAccess(access.getFormat(), tcu::IVec3(width, height, depth), access.getPitch(),
272 (const deUint8*)access.getDataPtr() + access.getPixelPitch()*x + access.getRowPitch()*y + access.getSlicePitch()*z);
273 }
274
275 /*--------------------------------------------------------------------*//*!
276 * \brief Get access to subregion of pixel buffer
277 * \param access Parent access object
278 * \param x X offset
279 * \param y Y offset
280 * \param z Z offset
281 * \param width Width
282 * \param height Height
283 * \param depth Depth
284 * \return Access object that targets given subregion of parent access object
285 *//*--------------------------------------------------------------------*/
getSubregion(const PixelBufferAccess & access,int x,int y,int z,int width,int height,int depth)286 PixelBufferAccess getSubregion (const PixelBufferAccess& access, int x, int y, int z, int width, int height, int depth)
287 {
288 DE_ASSERT(de::inBounds(x, 0, access.getWidth()));
289 DE_ASSERT(de::inRange(x+width, x+1, access.getWidth()));
290
291 DE_ASSERT(de::inBounds(y, 0, access.getHeight()));
292 DE_ASSERT(de::inRange(y+height, y+1, access.getHeight()));
293
294 DE_ASSERT(de::inBounds(z, 0, access.getDepth()));
295 DE_ASSERT(de::inRange(z+depth, z+1, access.getDepth()));
296
297 return PixelBufferAccess(access.getFormat(), tcu::IVec3(width, height, depth), access.getPitch(),
298 (deUint8*)access.getDataPtr() + access.getPixelPitch()*x + access.getRowPitch()*y + access.getSlicePitch()*z);
299 }
300
301 /*--------------------------------------------------------------------*//*!
302 * \brief Get access to subregion of pixel buffer
303 * \param access Parent access object
304 * \param x X offset
305 * \param y Y offset
306 * \param width Width
307 * \param height Height
308 * \return Access object that targets given subregion of parent access object
309 *//*--------------------------------------------------------------------*/
getSubregion(const PixelBufferAccess & access,int x,int y,int width,int height)310 PixelBufferAccess getSubregion (const PixelBufferAccess& access, int x, int y, int width, int height)
311 {
312 return getSubregion(access, x, y, 0, width, height, 1);
313 }
314
315 /*--------------------------------------------------------------------*//*!
316 * \brief Get access to subregion of pixel buffer
317 * \param access Parent access object
318 * \param x X offset
319 * \param y Y offset
320 * \param width Width
321 * \param height Height
322 * \return Access object that targets given subregion of parent access object
323 *//*--------------------------------------------------------------------*/
getSubregion(const ConstPixelBufferAccess & access,int x,int y,int width,int height)324 ConstPixelBufferAccess getSubregion (const ConstPixelBufferAccess& access, int x, int y, int width, int height)
325 {
326 return getSubregion(access, x, y, 0, width, height, 1);
327 }
328
329 /*--------------------------------------------------------------------*//*!
330 * \brief Flip rows in Y direction
331 * \param access Access object
332 * \return Modified access object where Y coordinates are reversed
333 *//*--------------------------------------------------------------------*/
flipYAccess(const PixelBufferAccess & access)334 PixelBufferAccess flipYAccess (const PixelBufferAccess& access)
335 {
336 const int rowPitch = access.getRowPitch();
337 const int offsetToLast = rowPitch*(access.getHeight()-1);
338 const tcu::IVec3 pitch (access.getPixelPitch(), -rowPitch, access.getSlicePitch());
339
340 return PixelBufferAccess(access.getFormat(), access.getSize(), pitch, (deUint8*)access.getDataPtr() + offsetToLast);
341 }
342
343 /*--------------------------------------------------------------------*//*!
344 * \brief Flip rows in Y direction
345 * \param access Access object
346 * \return Modified access object where Y coordinates are reversed
347 *//*--------------------------------------------------------------------*/
flipYAccess(const ConstPixelBufferAccess & access)348 ConstPixelBufferAccess flipYAccess (const ConstPixelBufferAccess& access)
349 {
350 const int rowPitch = access.getRowPitch();
351 const int offsetToLast = rowPitch*(access.getHeight()-1);
352 const tcu::IVec3 pitch (access.getPixelPitch(), -rowPitch, access.getSlicePitch());
353
354 return ConstPixelBufferAccess(access.getFormat(), access.getSize(), pitch, (deUint8*)access.getDataPtr() + offsetToLast);
355 }
356
getFloatChannelValueRange(TextureFormat::ChannelType channelType)357 static Vec2 getFloatChannelValueRange (TextureFormat::ChannelType channelType)
358 {
359 // make sure this table is updated if format table is updated
360 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
361
362 float cMin = 0.0f;
363 float cMax = 0.0f;
364
365 switch (channelType)
366 {
367 // Signed normalized formats.
368 case TextureFormat::SNORM_INT8:
369 case TextureFormat::SNORM_INT16:
370 case TextureFormat::SNORM_INT32:
371 case TextureFormat::SNORM_INT_1010102_REV: cMin = -1.0f; cMax = 1.0f; break;
372
373 // Unsigned normalized formats.
374 case TextureFormat::UNORM_INT8:
375 case TextureFormat::UNORM_INT16:
376 case TextureFormat::UNORM_INT24:
377 case TextureFormat::UNORM_INT32:
378 case TextureFormat::UNORM_BYTE_44:
379 case TextureFormat::UNORM_SHORT_565:
380 case TextureFormat::UNORM_SHORT_555:
381 case TextureFormat::UNORM_SHORT_4444:
382 case TextureFormat::UNORM_SHORT_5551:
383 case TextureFormat::UNORM_SHORT_1555:
384 case TextureFormat::UNORM_INT_101010:
385 case TextureFormat::UNORM_INT_1010102_REV:
386 case TextureFormat::UNORM_SHORT_10:
387 case TextureFormat::UNORM_SHORT_12: cMin = 0.0f; cMax = 1.0f; break;
388
389 // Misc formats.
390 case TextureFormat::SIGNED_INT8: cMin = -128.0f; cMax = 127.0f; break;
391 case TextureFormat::SIGNED_INT16: cMin = -32768.0f; cMax = 32767.0f; break;
392 case TextureFormat::SIGNED_INT32: cMin = -2147483520.0f; cMax = 2147483520.0f; break; // Maximum exactly representable 31-bit integer: (2^24 - 1) * 2^7
393 case TextureFormat::UNSIGNED_INT8: cMin = 0.0f; cMax = 255.0f; break;
394 case TextureFormat::UNSIGNED_INT16: cMin = 0.0f; cMax = 65535.0f; break;
395 case TextureFormat::UNSIGNED_INT24: cMin = 0.0f; cMax = 16777215.0f; break;
396 case TextureFormat::UNSIGNED_INT32: cMin = 0.0f; cMax = 4294967040.f; break; // Maximum exactly representable 32-bit integer: (2^24 - 1) * 2^8
397 case TextureFormat::HALF_FLOAT: cMin = -1e3f; cMax = 1e3f; break;
398 case TextureFormat::FLOAT: cMin = -1e5f; cMax = 1e5f; break;
399 case TextureFormat::FLOAT64: cMin = -1e5f; cMax = 1e5f; break;
400 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: cMin = 0.0f; cMax = 1e4f; break;
401 case TextureFormat::UNSIGNED_INT_999_E5_REV: cMin = 0.0f; cMax = 1e5f; break;
402 case TextureFormat::UNSIGNED_BYTE_44: cMin = 0.0f; cMax = 15.f; break;
403 case TextureFormat::UNSIGNED_SHORT_4444: cMin = 0.0f; cMax = 15.f; break;
404 case TextureFormat::USCALED_INT8: cMin = 0.0f; cMax = 255.0f; break;
405 case TextureFormat::USCALED_INT16: cMin = 0.0f; cMax = 65535.0f; break;
406 case TextureFormat::SSCALED_INT8: cMin = -128.0f; cMax = 127.0f; break;
407 case TextureFormat::SSCALED_INT16: cMin = -32768.0f; cMax = 32767.0f; break;
408 case TextureFormat::USCALED_INT_1010102_REV: cMin = 0.0f; cMax = 1023.0f; break;
409 case TextureFormat::SSCALED_INT_1010102_REV: cMin = -512.0f; cMax = 511.0f; break;
410
411 default:
412 DE_ASSERT(false);
413 }
414
415 return Vec2(cMin, cMax);
416 }
417
418 /*--------------------------------------------------------------------*//*!
419 * \brief Get standard parameters for testing texture format
420 *
421 * Returns TextureFormatInfo that describes good parameters for exercising
422 * given TextureFormat. Parameters include value ranges per channel and
423 * suitable lookup scaling and bias in order to reduce result back to
424 * 0..1 range.
425 *//*--------------------------------------------------------------------*/
getTextureFormatInfo(const TextureFormat & format)426 TextureFormatInfo getTextureFormatInfo (const TextureFormat& format)
427 {
428 // Special cases.
429 if (format.type == TextureFormat::UNSIGNED_INT_1010102_REV)
430 return TextureFormatInfo(Vec4( 0.0f, 0.0f, 0.0f, 0.0f),
431 Vec4( 1023.0f, 1023.0f, 1023.0f, 3.0f),
432 Vec4(1.0f/1023.f, 1.0f/1023.0f, 1.0f/1023.0f, 1.0f/3.0f),
433 Vec4( 0.0f, 0.0f, 0.0f, 0.0f));
434 if (format.type == TextureFormat::SIGNED_INT_1010102_REV)
435 return TextureFormatInfo(Vec4( -512.0f, -512.0f, -512.0f, -2.0f),
436 Vec4( 511.0f, 511.0f, 511.0f, 1.0f),
437 Vec4(1.0f/1023.f, 1.0f/1023.0f, 1.0f/1023.0f, 1.0f/3.0f),
438 Vec4( 0.5f, 0.5f, 0.5f, 0.5f));
439 else if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
440 return TextureFormatInfo(Vec4(0.0f, 0.0f, 0.0f, 0.0f),
441 Vec4(1.0f, 1.0f, 1.0f, 0.0f),
442 Vec4(1.0f, 1.0f, 1.0f, 1.0f),
443 Vec4(0.0f, 0.0f, 0.0f, 0.0f)); // Depth / stencil formats.
444 else if (format == TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551))
445 return TextureFormatInfo(Vec4(0.0f, 0.0f, 0.0f, 0.5f),
446 Vec4(1.0f, 1.0f, 1.0f, 1.5f),
447 Vec4(1.0f, 1.0f, 1.0f, 1.0f),
448 Vec4(0.0f, 0.0f, 0.0f, 0.0f));
449 else if (format.type == TextureFormat::UNSIGNED_SHORT_5551)
450 return TextureFormatInfo(Vec4( 0.0f, 0.0f, 0.0f, 0.0f),
451 Vec4( 31.0f, 31.0f, 31.0f, 1.0f),
452 Vec4(1.0f/31.f, 1.0f/31.0f, 1.0f/31.0f, 1.0f),
453 Vec4( 0.0f, 0.0f, 0.0f, 0.0f));
454 else if (format.type == TextureFormat::UNSIGNED_SHORT_565)
455 return TextureFormatInfo(Vec4( 0.0f, 0.0f, 0.0f, 0.0f),
456 Vec4( 31.0f, 63.0f, 31.0f, 0.0f),
457 Vec4(1.0f/31.f, 1.0f/63.0f, 1.0f/31.0f, 1.0f),
458 Vec4( 0.0f, 0.0f, 0.0f, 0.0f));
459
460 const Vec2 cRange = getFloatChannelValueRange(format.type);
461 const TextureSwizzle::Channel* map = getChannelReadSwizzle(format.order).components;
462 const BVec4 chnMask = BVec4(deInRange32(map[0], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
463 deInRange32(map[1], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
464 deInRange32(map[2], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
465 deInRange32(map[3], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE);
466 const float scale = 1.0f / (cRange[1] - cRange[0]);
467 const float bias = -cRange[0] * scale;
468
469 return TextureFormatInfo(select(cRange[0], 0.0f, chnMask),
470 select(cRange[1], 0.0f, chnMask),
471 select(scale, 1.0f, chnMask),
472 select(bias, 0.0f, chnMask));
473 }
474
getFormatMinIntValue(const TextureFormat & format)475 IVec4 getFormatMinIntValue (const TextureFormat& format)
476 {
477 DE_ASSERT(getTextureChannelClass(format.type) == TEXTURECHANNELCLASS_SIGNED_INTEGER);
478
479 switch (format.type)
480 {
481 case TextureFormat::SIGNED_INT8: return IVec4(std::numeric_limits<deInt8>::min());
482 case TextureFormat::SIGNED_INT16: return IVec4(std::numeric_limits<deInt16>::min());
483 case TextureFormat::SIGNED_INT32: return IVec4(std::numeric_limits<deInt32>::min());
484
485 default:
486 DE_FATAL("Invalid channel type");
487 return IVec4(0);
488 }
489 }
490
getFormatMaxIntValue(const TextureFormat & format)491 IVec4 getFormatMaxIntValue (const TextureFormat& format)
492 {
493 DE_ASSERT(getTextureChannelClass(format.type) == TEXTURECHANNELCLASS_SIGNED_INTEGER);
494
495 if (format == TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT_1010102_REV) ||
496 format == TextureFormat(TextureFormat::BGRA, TextureFormat::SSCALED_INT_1010102_REV) ||
497 format == TextureFormat(TextureFormat::RGBA, TextureFormat::SSCALED_INT_1010102_REV) ||
498 format == TextureFormat(TextureFormat::BGRA, TextureFormat::SIGNED_INT_1010102_REV))
499 return IVec4(511, 511, 511, 1);
500
501 switch (format.type)
502 {
503 case TextureFormat::SIGNED_INT8: return IVec4(std::numeric_limits<deInt8>::max());
504 case TextureFormat::SIGNED_INT16: return IVec4(std::numeric_limits<deInt16>::max());
505 case TextureFormat::SIGNED_INT32: return IVec4(std::numeric_limits<deInt32>::max());
506
507 case TextureFormat::SSCALED_INT8: return IVec4(std::numeric_limits<deInt8>::max());
508 case TextureFormat::SSCALED_INT16: return IVec4(std::numeric_limits<deInt16>::max());
509
510 default:
511 DE_FATAL("Invalid channel type");
512 return IVec4(0);
513 }
514 }
515
getFormatMaxUintValue(const TextureFormat & format)516 UVec4 getFormatMaxUintValue (const TextureFormat& format)
517 {
518 DE_ASSERT(getTextureChannelClass(format.type) == TEXTURECHANNELCLASS_UNSIGNED_INTEGER);
519
520 if (format == TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV) ||
521 format == TextureFormat(TextureFormat::RGBA, TextureFormat::USCALED_INT_1010102_REV) ||
522 format == TextureFormat(TextureFormat::BGRA, TextureFormat::USCALED_INT_1010102_REV) ||
523 format == TextureFormat(TextureFormat::BGRA, TextureFormat::UNSIGNED_INT_1010102_REV))
524 return UVec4(1023u, 1023u, 1023u, 3u);
525
526 switch (format.type)
527 {
528 case TextureFormat::UNSIGNED_INT8: return UVec4(std::numeric_limits<deUint8>::max());
529 case TextureFormat::UNSIGNED_INT16: return UVec4(std::numeric_limits<deUint16>::max());
530 case TextureFormat::UNSIGNED_INT24: return UVec4(0xffffffu);
531 case TextureFormat::UNSIGNED_INT32: return UVec4(std::numeric_limits<deUint32>::max());
532
533 case TextureFormat::USCALED_INT8: return UVec4(std::numeric_limits<deUint8>::max());
534 case TextureFormat::USCALED_INT16: return UVec4(std::numeric_limits<deUint16>::max());
535
536 default:
537 DE_FATAL("Invalid channel type");
538 return UVec4(0);
539 }
540 }
541
getChannelBitDepth(TextureFormat::ChannelType channelType)542 static IVec4 getChannelBitDepth (TextureFormat::ChannelType channelType)
543 {
544 // make sure this table is updated if format table is updated
545 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
546
547 switch (channelType)
548 {
549 case TextureFormat::SNORM_INT8: return IVec4(8);
550 case TextureFormat::SNORM_INT16: return IVec4(16);
551 case TextureFormat::SNORM_INT32: return IVec4(32);
552 case TextureFormat::UNORM_INT8: return IVec4(8);
553 case TextureFormat::UNORM_INT16: return IVec4(16);
554 case TextureFormat::UNORM_INT24: return IVec4(24);
555 case TextureFormat::UNORM_INT32: return IVec4(32);
556 case TextureFormat::UNORM_BYTE_44: return IVec4(4,4,0,0);
557 case TextureFormat::UNORM_SHORT_565: return IVec4(5,6,5,0);
558 case TextureFormat::UNORM_SHORT_4444: return IVec4(4);
559 case TextureFormat::UNORM_SHORT_555: return IVec4(5,5,5,0);
560 case TextureFormat::UNORM_SHORT_5551: return IVec4(5,5,5,1);
561 case TextureFormat::UNORM_SHORT_1555: return IVec4(1,5,5,5);
562 case TextureFormat::UNSIGNED_BYTE_44: return IVec4(4,4,0,0);
563 case TextureFormat::UNSIGNED_SHORT_565: return IVec4(5,6,5,0);
564 case TextureFormat::UNSIGNED_SHORT_4444: return IVec4(4);
565 case TextureFormat::UNSIGNED_SHORT_5551: return IVec4(5,5,5,1);
566 case TextureFormat::UNORM_INT_101010: return IVec4(10,10,10,0);
567 case TextureFormat::SNORM_INT_1010102_REV: return IVec4(10,10,10,2);
568 case TextureFormat::UNORM_INT_1010102_REV: return IVec4(10,10,10,2);
569 case TextureFormat::SIGNED_INT8: return IVec4(8);
570 case TextureFormat::SIGNED_INT16: return IVec4(16);
571 case TextureFormat::SIGNED_INT32: return IVec4(32);
572 case TextureFormat::UNSIGNED_INT8: return IVec4(8);
573 case TextureFormat::UNSIGNED_INT16: return IVec4(16);
574 case TextureFormat::UNSIGNED_INT24: return IVec4(24);
575 case TextureFormat::UNSIGNED_INT32: return IVec4(32);
576 case TextureFormat::SIGNED_INT_1010102_REV: return IVec4(10,10,10,2);
577 case TextureFormat::UNSIGNED_INT_1010102_REV: return IVec4(10,10,10,2);
578 case TextureFormat::UNSIGNED_INT_16_8_8: return IVec4(16,8,0,0);
579 case TextureFormat::UNSIGNED_INT_24_8: return IVec4(24,8,0,0);
580 case TextureFormat::UNSIGNED_INT_24_8_REV: return IVec4(24,8,0,0);
581 case TextureFormat::HALF_FLOAT: return IVec4(16);
582 case TextureFormat::FLOAT: return IVec4(32);
583 case TextureFormat::FLOAT64: return IVec4(64);
584 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return IVec4(11,11,10,0);
585 case TextureFormat::UNSIGNED_INT_999_E5_REV: return IVec4(9,9,9,0);
586 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: return IVec4(32,8,0,0);
587 case TextureFormat::UNORM_SHORT_10: return IVec4(10);
588 case TextureFormat::UNORM_SHORT_12: return IVec4(12);
589 case TextureFormat::USCALED_INT8: return IVec4(8);
590 case TextureFormat::USCALED_INT16: return IVec4(16);
591 case TextureFormat::SSCALED_INT8: return IVec4(8);
592 case TextureFormat::SSCALED_INT16: return IVec4(16);
593 case TextureFormat::USCALED_INT_1010102_REV: return IVec4(10,10,10,2);
594 case TextureFormat::SSCALED_INT_1010102_REV: return IVec4(10,10,10,2);
595 default:
596 DE_ASSERT(false);
597 return IVec4(0);
598 }
599 }
600
getTextureFormatBitDepth(const TextureFormat & format)601 IVec4 getTextureFormatBitDepth (const TextureFormat& format)
602 {
603 const IVec4 chnBits = getChannelBitDepth(format.type);
604 const TextureSwizzle::Channel* map = getChannelReadSwizzle(format.order).components;
605 const BVec4 chnMask = BVec4(deInRange32(map[0], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
606 deInRange32(map[1], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
607 deInRange32(map[2], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
608 deInRange32(map[3], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE);
609 const IVec4 chnSwz = IVec4((chnMask[0]) ? ((int)map[0]) : (0),
610 (chnMask[1]) ? ((int)map[1]) : (0),
611 (chnMask[2]) ? ((int)map[2]) : (0),
612 (chnMask[3]) ? ((int)map[3]) : (0));
613
614 return select(chnBits.swizzle(chnSwz.x(), chnSwz.y(), chnSwz.z(), chnSwz.w()), IVec4(0), chnMask);
615 }
616
getChannelMantissaBitDepth(TextureFormat::ChannelType channelType)617 static IVec4 getChannelMantissaBitDepth (TextureFormat::ChannelType channelType)
618 {
619 // make sure this table is updated if format table is updated
620 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
621
622 switch (channelType)
623 {
624 case TextureFormat::SNORM_INT8:
625 case TextureFormat::SNORM_INT16:
626 case TextureFormat::SNORM_INT32:
627 case TextureFormat::UNORM_INT8:
628 case TextureFormat::UNORM_INT16:
629 case TextureFormat::UNORM_INT24:
630 case TextureFormat::UNORM_INT32:
631 case TextureFormat::UNORM_BYTE_44:
632 case TextureFormat::UNORM_SHORT_565:
633 case TextureFormat::UNORM_SHORT_4444:
634 case TextureFormat::UNORM_SHORT_555:
635 case TextureFormat::UNORM_SHORT_5551:
636 case TextureFormat::UNORM_SHORT_1555:
637 case TextureFormat::UNSIGNED_BYTE_44:
638 case TextureFormat::UNSIGNED_SHORT_565:
639 case TextureFormat::UNSIGNED_SHORT_4444:
640 case TextureFormat::UNSIGNED_SHORT_5551:
641 case TextureFormat::UNORM_INT_101010:
642 case TextureFormat::SNORM_INT_1010102_REV:
643 case TextureFormat::UNORM_INT_1010102_REV:
644 case TextureFormat::SIGNED_INT8:
645 case TextureFormat::SIGNED_INT16:
646 case TextureFormat::SIGNED_INT32:
647 case TextureFormat::UNSIGNED_INT8:
648 case TextureFormat::UNSIGNED_INT16:
649 case TextureFormat::UNSIGNED_INT24:
650 case TextureFormat::UNSIGNED_INT32:
651 case TextureFormat::SIGNED_INT_1010102_REV:
652 case TextureFormat::UNSIGNED_INT_1010102_REV:
653 case TextureFormat::UNSIGNED_INT_16_8_8:
654 case TextureFormat::UNSIGNED_INT_24_8:
655 case TextureFormat::UNSIGNED_INT_24_8_REV:
656 case TextureFormat::UNSIGNED_INT_999_E5_REV:
657 case TextureFormat::UNORM_SHORT_10:
658 case TextureFormat::UNORM_SHORT_12:
659 case TextureFormat::USCALED_INT8:
660 case TextureFormat::USCALED_INT16:
661 case TextureFormat::SSCALED_INT8:
662 case TextureFormat::SSCALED_INT16:
663 case TextureFormat::USCALED_INT_1010102_REV:
664 case TextureFormat::SSCALED_INT_1010102_REV:
665 return getChannelBitDepth(channelType);
666
667 case TextureFormat::HALF_FLOAT: return IVec4(10);
668 case TextureFormat::FLOAT: return IVec4(23);
669 case TextureFormat::FLOAT64: return IVec4(52);
670 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return IVec4(6,6,5,0);
671 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: return IVec4(23,8,0,0);
672 default:
673 DE_ASSERT(false);
674 return IVec4(0);
675 }
676 }
677
getTextureFormatMantissaBitDepth(const TextureFormat & format)678 IVec4 getTextureFormatMantissaBitDepth (const TextureFormat& format)
679 {
680 const IVec4 chnBits = getChannelMantissaBitDepth(format.type);
681 const TextureSwizzle::Channel* map = getChannelReadSwizzle(format.order).components;
682 const BVec4 chnMask = BVec4(deInRange32(map[0], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
683 deInRange32(map[1], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
684 deInRange32(map[2], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
685 deInRange32(map[3], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE);
686 const IVec4 chnSwz = IVec4((chnMask[0]) ? ((int)map[0]) : (0),
687 (chnMask[1]) ? ((int)map[1]) : (0),
688 (chnMask[2]) ? ((int)map[2]) : (0),
689 (chnMask[3]) ? ((int)map[3]) : (0));
690
691 return select(chnBits.swizzle(chnSwz.x(), chnSwz.y(), chnSwz.z(), chnSwz.w()), IVec4(0), chnMask);
692 }
693
getTextureFormatChannelMask(const TextureFormat & format)694 BVec4 getTextureFormatChannelMask (const TextureFormat& format)
695 {
696 const TextureSwizzle::Channel* const map = getChannelReadSwizzle(format.order).components;
697 return BVec4(deInRange32(map[0], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
698 deInRange32(map[1], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
699 deInRange32(map[2], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE,
700 deInRange32(map[3], TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE);
701 }
702
linearInterpolate(float t,float minVal,float maxVal)703 static inline float linearInterpolate (float t, float minVal, float maxVal)
704 {
705 return minVal + (maxVal - minVal) * t;
706 }
707
linearInterpolate(float t,const Vec4 & a,const Vec4 & b)708 static inline Vec4 linearInterpolate (float t, const Vec4& a, const Vec4& b)
709 {
710 return a + (b - a) * t;
711 }
712
713 enum
714 {
715 CLEAR_OPTIMIZE_THRESHOLD = 128,
716 CLEAR_OPTIMIZE_MAX_PIXEL_SIZE = 8
717 };
718
fillRow(const PixelBufferAccess & dst,int y,int z,int pixelSize,const deUint8 * pixel)719 inline void fillRow (const PixelBufferAccess& dst, int y, int z, int pixelSize, const deUint8* pixel)
720 {
721 DE_ASSERT(dst.getPixelPitch() == pixelSize); // only tightly packed
722
723 deUint8* dstPtr = (deUint8*)dst.getPixelPtr(0, y, z);
724 int width = dst.getWidth();
725
726 if (pixelSize == 8 && deIsAlignedPtr(dstPtr, pixelSize))
727 {
728 deUint64 val;
729 memcpy(&val, pixel, sizeof(val));
730
731 for (int i = 0; i < width; i++)
732 ((deUint64*)dstPtr)[i] = val;
733 }
734 else if (pixelSize == 4 && deIsAlignedPtr(dstPtr, pixelSize))
735 {
736 deUint32 val;
737 memcpy(&val, pixel, sizeof(val));
738
739 for (int i = 0; i < width; i++)
740 ((deUint32*)dstPtr)[i] = val;
741 }
742 else
743 {
744 for (int i = 0; i < width; i++)
745 for (int j = 0; j < pixelSize; j++)
746 dstPtr[i*pixelSize+j] = pixel[j];
747 }
748 }
749
clear(const PixelBufferAccess & access,const Vec4 & color)750 void clear (const PixelBufferAccess& access, const Vec4& color)
751 {
752 const int pixelSize = access.getFormat().getPixelSize();
753 const int pixelPitch = access.getPixelPitch();
754 const bool rowPixelsTightlyPacked = (pixelSize == pixelPitch);
755
756 if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
757 pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE && rowPixelsTightlyPacked)
758 {
759 // Convert to destination format.
760 union
761 {
762 deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
763 deUint64 u64; // Forces 64-bit alignment.
764 } pixel;
765 DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
766 PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixel(color, 0, 0);
767
768 for (int z = 0; z < access.getDepth(); z++)
769 for (int y = 0; y < access.getHeight(); y++)
770 fillRow(access, y, z, pixelSize, &pixel.u8[0]);
771 }
772 else
773 {
774 for (int z = 0; z < access.getDepth(); z++)
775 for (int y = 0; y < access.getHeight(); y++)
776 for (int x = 0; x < access.getWidth(); x++)
777 access.setPixel(color, x, y, z);
778 }
779 }
780
clear(const PixelBufferAccess & access,const IVec4 & color)781 void clear (const PixelBufferAccess& access, const IVec4& color)
782 {
783 const int pixelSize = access.getFormat().getPixelSize();
784 const int pixelPitch = access.getPixelPitch();
785 const bool rowPixelsTightlyPacked = (pixelSize == pixelPitch);
786
787 if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
788 pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE && rowPixelsTightlyPacked)
789 {
790 // Convert to destination format.
791 union
792 {
793 deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
794 deUint64 u64; // Forces 64-bit alignment.
795 } pixel;
796 DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
797 PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixel(color, 0, 0);
798
799 for (int z = 0; z < access.getDepth(); z++)
800 for (int y = 0; y < access.getHeight(); y++)
801 fillRow(access, y, z, pixelSize, &pixel.u8[0]);
802 }
803 else
804 {
805 for (int z = 0; z < access.getDepth(); z++)
806 for (int y = 0; y < access.getHeight(); y++)
807 for (int x = 0; x < access.getWidth(); x++)
808 access.setPixel(color, x, y, z);
809 }
810 }
811
clear(const PixelBufferAccess & access,const UVec4 & color)812 void clear (const PixelBufferAccess& access, const UVec4& color)
813 {
814 clear(access, color.cast<deInt32>());
815 }
816
clearDepth(const PixelBufferAccess & access,float depth)817 void clearDepth (const PixelBufferAccess& access, float depth)
818 {
819 DE_ASSERT(access.getFormat().order == TextureFormat::DS || access.getFormat().order == TextureFormat::D);
820
821 clear(getEffectiveDepthStencilAccess(access, Sampler::MODE_DEPTH), tcu::Vec4(depth, 0.0f, 0.0f, 0.0f));
822 }
823
clearStencil(const PixelBufferAccess & access,int stencil)824 void clearStencil (const PixelBufferAccess& access, int stencil)
825 {
826 DE_ASSERT(access.getFormat().order == TextureFormat::DS || access.getFormat().order == TextureFormat::S);
827
828 clear(getEffectiveDepthStencilAccess(access, Sampler::MODE_STENCIL), tcu::UVec4(stencil, 0u, 0u, 0u));
829 }
830
fillWithComponentGradients1D(const PixelBufferAccess & access,const Vec4 & minVal,const Vec4 & maxVal)831 static void fillWithComponentGradients1D (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
832 {
833 DE_ASSERT(access.getHeight() == 1);
834 for (int x = 0; x < access.getWidth(); x++)
835 {
836 float s = ((float)x + 0.5f) / (float)access.getWidth();
837
838 float r = linearInterpolate(s, minVal.x(), maxVal.x());
839 float g = linearInterpolate(s, minVal.y(), maxVal.y());
840 float b = linearInterpolate(s, minVal.z(), maxVal.z());
841 float a = linearInterpolate(s, minVal.w(), maxVal.w());
842
843 access.setPixel(tcu::Vec4(r, g, b, a), x, 0);
844 }
845 }
846
fillWithComponentGradients2D(const PixelBufferAccess & access,const Vec4 & minVal,const Vec4 & maxVal)847 static void fillWithComponentGradients2D (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
848 {
849 for (int y = 0; y < access.getHeight(); y++)
850 {
851 for (int x = 0; x < access.getWidth(); x++)
852 {
853 float s = ((float)x + 0.5f) / (float)access.getWidth();
854 float t = ((float)y + 0.5f) / (float)access.getHeight();
855
856 float r = linearInterpolate(( s + t) *0.5f, minVal.x(), maxVal.x());
857 float g = linearInterpolate(( s + (1.0f-t))*0.5f, minVal.y(), maxVal.y());
858 float b = linearInterpolate(((1.0f-s) + t) *0.5f, minVal.z(), maxVal.z());
859 float a = linearInterpolate(((1.0f-s) + (1.0f-t))*0.5f, minVal.w(), maxVal.w());
860
861 access.setPixel(tcu::Vec4(r, g, b, a), x, y);
862 }
863 }
864 }
865
fillWithComponentGradients3D(const PixelBufferAccess & dst,const Vec4 & minVal,const Vec4 & maxVal)866 static void fillWithComponentGradients3D (const PixelBufferAccess& dst, const Vec4& minVal, const Vec4& maxVal)
867 {
868 for (int z = 0; z < dst.getDepth(); z++)
869 {
870 for (int y = 0; y < dst.getHeight(); y++)
871 {
872 for (int x = 0; x < dst.getWidth(); x++)
873 {
874 float s = ((float)x + 0.5f) / (float)dst.getWidth();
875 float t = ((float)y + 0.5f) / (float)dst.getHeight();
876 float p = ((float)z + 0.5f) / (float)dst.getDepth();
877
878 float r = linearInterpolate(s, minVal.x(), maxVal.x());
879 float g = linearInterpolate(t, minVal.y(), maxVal.y());
880 float b = linearInterpolate(p, minVal.z(), maxVal.z());
881 float a = linearInterpolate(1.0f - (s+t+p)/3.0f, minVal.w(), maxVal.w());
882
883 dst.setPixel(tcu::Vec4(r, g, b, a), x, y, z);
884 }
885 }
886 }
887 }
888
fillWithComponentGradients(const PixelBufferAccess & access,const Vec4 & minVal,const Vec4 & maxVal)889 void fillWithComponentGradients (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
890 {
891 if (isCombinedDepthStencilType(access.getFormat().type))
892 {
893 const bool hasDepth = access.getFormat().order == tcu::TextureFormat::DS || access.getFormat().order == tcu::TextureFormat::D;
894 const bool hasStencil = access.getFormat().order == tcu::TextureFormat::DS || access.getFormat().order == tcu::TextureFormat::S;
895
896 DE_ASSERT(hasDepth || hasStencil);
897
898 // For combined formats, treat D and S as separate channels
899 if (hasDepth)
900 fillWithComponentGradients(getEffectiveDepthStencilAccess(access, tcu::Sampler::MODE_DEPTH), minVal, maxVal);
901 if (hasStencil)
902 fillWithComponentGradients(getEffectiveDepthStencilAccess(access, tcu::Sampler::MODE_STENCIL), minVal.swizzle(3,2,1,0), maxVal.swizzle(3,2,1,0));
903 }
904 else
905 {
906 if (access.getHeight() == 1 && access.getDepth() == 1)
907 fillWithComponentGradients1D(access, minVal, maxVal);
908 else if (access.getDepth() == 1)
909 fillWithComponentGradients2D(access, minVal, maxVal);
910 else
911 fillWithComponentGradients3D(access, minVal, maxVal);
912 }
913 }
914
fillWithGrid1D(const PixelBufferAccess & access,int cellSize,const Vec4 & colorA,const Vec4 & colorB)915 static void fillWithGrid1D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
916 {
917 for (int x = 0; x < access.getWidth(); x++)
918 {
919 int mx = (x / cellSize) % 2;
920
921 if (mx)
922 access.setPixel(colorB, x, 0);
923 else
924 access.setPixel(colorA, x, 0);
925 }
926 }
927
fillWithGrid2D(const PixelBufferAccess & access,int cellSize,const Vec4 & colorA,const Vec4 & colorB)928 static void fillWithGrid2D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
929 {
930 for (int y = 0; y < access.getHeight(); y++)
931 {
932 for (int x = 0; x < access.getWidth(); x++)
933 {
934 int mx = (x / cellSize) % 2;
935 int my = (y / cellSize) % 2;
936
937 if (mx ^ my)
938 access.setPixel(colorB, x, y);
939 else
940 access.setPixel(colorA, x, y);
941 }
942 }
943 }
944
fillWithGrid3D(const PixelBufferAccess & access,int cellSize,const Vec4 & colorA,const Vec4 & colorB)945 static void fillWithGrid3D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
946 {
947 for (int z = 0; z < access.getDepth(); z++)
948 {
949 for (int y = 0; y < access.getHeight(); y++)
950 {
951 for (int x = 0; x < access.getWidth(); x++)
952 {
953 int mx = (x / cellSize) % 2;
954 int my = (y / cellSize) % 2;
955 int mz = (z / cellSize) % 2;
956
957 if (mx ^ my ^ mz)
958 access.setPixel(colorB, x, y, z);
959 else
960 access.setPixel(colorA, x, y, z);
961 }
962 }
963 }
964 }
965
fillWithGrid(const PixelBufferAccess & access,int cellSize,const Vec4 & colorA,const Vec4 & colorB)966 void fillWithGrid (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
967 {
968 if (isCombinedDepthStencilType(access.getFormat().type))
969 {
970 const bool hasDepth = access.getFormat().order == tcu::TextureFormat::DS || access.getFormat().order == tcu::TextureFormat::D;
971 const bool hasStencil = access.getFormat().order == tcu::TextureFormat::DS || access.getFormat().order == tcu::TextureFormat::S;
972
973 DE_ASSERT(hasDepth || hasStencil);
974
975 // For combined formats, treat D and S as separate channels
976 if (hasDepth)
977 fillWithGrid(getEffectiveDepthStencilAccess(access, tcu::Sampler::MODE_DEPTH), cellSize, colorA, colorB);
978 if (hasStencil)
979 fillWithGrid(getEffectiveDepthStencilAccess(access, tcu::Sampler::MODE_STENCIL), cellSize, colorA.swizzle(3,2,1,0), colorB.swizzle(3,2,1,0));
980 }
981 else
982 {
983 if (access.getHeight() == 1 && access.getDepth() == 1)
984 fillWithGrid1D(access, cellSize, colorA, colorB);
985 else if (access.getDepth() == 1)
986 fillWithGrid2D(access, cellSize, colorA, colorB);
987 else
988 fillWithGrid3D(access, cellSize, colorA, colorB);
989 }
990 }
991
fillWithRepeatableGradient(const PixelBufferAccess & access,const Vec4 & colorA,const Vec4 & colorB)992 void fillWithRepeatableGradient (const PixelBufferAccess& access, const Vec4& colorA, const Vec4& colorB)
993 {
994 for (int y = 0; y < access.getHeight(); y++)
995 {
996 for (int x = 0; x < access.getWidth(); x++)
997 {
998 float s = ((float)x + 0.5f) / (float)access.getWidth();
999 float t = ((float)y + 0.5f) / (float)access.getHeight();
1000
1001 float a = s > 0.5f ? (2.0f - 2.0f*s) : 2.0f*s;
1002 float b = t > 0.5f ? (2.0f - 2.0f*t) : 2.0f*t;
1003
1004 float p = deFloatClamp(deFloatSqrt(a*a + b*b), 0.0f, 1.0f);
1005 access.setPixel(linearInterpolate(p, colorA, colorB), x, y);
1006 }
1007 }
1008 }
1009
fillWithRGBAQuads(const PixelBufferAccess & dst)1010 void fillWithRGBAQuads (const PixelBufferAccess& dst)
1011 {
1012 TCU_CHECK_INTERNAL(dst.getDepth() == 1);
1013 int width = dst.getWidth();
1014 int height = dst.getHeight();
1015 int left = width/2;
1016 int top = height/2;
1017
1018 clear(getSubregion(dst, 0, 0, 0, left, top, 1), Vec4(1.0f, 0.0f, 0.0f, 1.0f));
1019 clear(getSubregion(dst, left, 0, 0, width-left, top, 1), Vec4(0.0f, 1.0f, 0.0f, 1.0f));
1020 clear(getSubregion(dst, 0, top, 0, left, height-top, 1), Vec4(0.0f, 0.0f, 1.0f, 0.0f));
1021 clear(getSubregion(dst, left, top, 0, width-left, height-top, 1), Vec4(0.5f, 0.5f, 0.5f, 1.0f));
1022 }
1023
1024 // \todo [2012-11-13 pyry] There is much better metaballs code in CL SIR value generators.
fillWithMetaballs(const PixelBufferAccess & dst,int numBalls,deUint32 seed)1025 void fillWithMetaballs (const PixelBufferAccess& dst, int numBalls, deUint32 seed)
1026 {
1027 TCU_CHECK_INTERNAL(dst.getDepth() == 1);
1028 std::vector<Vec2> points(numBalls);
1029 de::Random rnd(seed);
1030
1031 for (int i = 0; i < numBalls; i++)
1032 {
1033 float x = rnd.getFloat();
1034 float y = rnd.getFloat();
1035 points[i] = (Vec2(x, y));
1036 }
1037
1038 for (int y = 0; y < dst.getHeight(); y++)
1039 for (int x = 0; x < dst.getWidth(); x++)
1040 {
1041 Vec2 p((float)x/(float)dst.getWidth(), (float)y/(float)dst.getHeight());
1042
1043 float sum = 0.0f;
1044 for (std::vector<Vec2>::const_iterator i = points.begin(); i != points.end(); i++)
1045 {
1046 Vec2 d = p - *i;
1047 float f = 0.01f / (d.x()*d.x() + d.y()*d.y());
1048
1049 sum += f;
1050 }
1051
1052 dst.setPixel(Vec4(sum), x, y);
1053 }
1054 }
1055
copy(const PixelBufferAccess & dst,const ConstPixelBufferAccess & src,const bool clearUnused)1056 void copy (const PixelBufferAccess& dst, const ConstPixelBufferAccess& src, const bool clearUnused)
1057 {
1058 DE_ASSERT(src.getSize() == dst.getSize());
1059
1060 const int width = dst.getWidth();
1061 const int height = dst.getHeight();
1062 const int depth = dst.getDepth();
1063
1064 const int srcPixelSize = src.getFormat().getPixelSize();
1065 const int dstPixelSize = dst.getFormat().getPixelSize();
1066 const int srcPixelPitch = src.getPixelPitch();
1067 const int dstPixelPitch = dst.getPixelPitch();
1068 const bool srcTightlyPacked = (srcPixelSize == srcPixelPitch);
1069 const bool dstTightlyPacked = (dstPixelSize == dstPixelPitch);
1070
1071 const bool srcHasDepth = (src.getFormat().order == tcu::TextureFormat::DS || src.getFormat().order == tcu::TextureFormat::D);
1072 const bool srcHasStencil = (src.getFormat().order == tcu::TextureFormat::DS || src.getFormat().order == tcu::TextureFormat::S);
1073 const bool dstHasDepth = (dst.getFormat().order == tcu::TextureFormat::DS || dst.getFormat().order == tcu::TextureFormat::D);
1074 const bool dstHasStencil = (dst.getFormat().order == tcu::TextureFormat::DS || dst.getFormat().order == tcu::TextureFormat::S);
1075
1076 if (src.getFormat() == dst.getFormat() && srcTightlyPacked && dstTightlyPacked)
1077 {
1078 // Fast-path for matching formats.
1079 for (int z = 0; z < depth; z++)
1080 for (int y = 0; y < height; y++)
1081 deMemcpy(dst.getPixelPtr(0, y, z), src.getPixelPtr(0, y, z), srcPixelSize*width);
1082 }
1083 else if (src.getFormat() == dst.getFormat())
1084 {
1085 // Bit-exact copy for matching formats.
1086 for (int z = 0; z < depth; z++)
1087 for (int y = 0; y < height; y++)
1088 for (int x = 0; x < width; x++)
1089 deMemcpy(dst.getPixelPtr(x, y, z), src.getPixelPtr(x, y, z), srcPixelSize);
1090 }
1091 else if (srcHasDepth || srcHasStencil || dstHasDepth || dstHasStencil)
1092 {
1093 DE_ASSERT((srcHasDepth && dstHasDepth) || (srcHasStencil && dstHasStencil)); // must have at least one common channel
1094
1095 if (dstHasDepth && srcHasDepth)
1096 {
1097 for (int z = 0; z < depth; z++)
1098 for (int y = 0; y < height; y++)
1099 for (int x = 0; x < width; x++)
1100 dst.setPixDepth(src.getPixDepth(x, y, z), x, y, z);
1101 }
1102 else if (dstHasDepth && !srcHasDepth && clearUnused)
1103 {
1104 // consistency with color copies
1105 tcu::clearDepth(dst, 0.0f);
1106 }
1107
1108 if (dstHasStencil && srcHasStencil)
1109 {
1110 for (int z = 0; z < depth; z++)
1111 for (int y = 0; y < height; y++)
1112 for (int x = 0; x < width; x++)
1113 dst.setPixStencil(src.getPixStencil(x, y, z), x, y, z);
1114 }
1115 else if (dstHasStencil && !srcHasStencil && clearUnused)
1116 {
1117 // consistency with color copies
1118 tcu::clearStencil(dst, 0u);
1119 }
1120 }
1121 else
1122 {
1123 TextureChannelClass srcClass = getTextureChannelClass(src.getFormat().type);
1124 TextureChannelClass dstClass = getTextureChannelClass(dst.getFormat().type);
1125 bool srcIsInt = srcClass == TEXTURECHANNELCLASS_SIGNED_INTEGER || srcClass == TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
1126 bool dstIsInt = dstClass == TEXTURECHANNELCLASS_SIGNED_INTEGER || dstClass == TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
1127
1128 if (srcIsInt && dstIsInt)
1129 {
1130 for (int z = 0; z < depth; z++)
1131 for (int y = 0; y < height; y++)
1132 for (int x = 0; x < width; x++)
1133 dst.setPixel(src.getPixelInt(x, y, z), x, y, z);
1134 }
1135 else
1136 {
1137 for (int z = 0; z < depth; z++)
1138 for (int y = 0; y < height; y++)
1139 for (int x = 0; x < width; x++)
1140 dst.setPixel(src.getPixel(x, y, z), x, y, z);
1141 }
1142 }
1143 }
1144
scale(const PixelBufferAccess & dst,const ConstPixelBufferAccess & src,Sampler::FilterMode filter)1145 void scale (const PixelBufferAccess& dst, const ConstPixelBufferAccess& src, Sampler::FilterMode filter)
1146 {
1147 DE_ASSERT(filter == Sampler::NEAREST || filter == Sampler::LINEAR);
1148
1149 Sampler sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE,
1150 filter, filter, 0.0f, false);
1151
1152 float sX = (float)src.getWidth() / (float)dst.getWidth();
1153 float sY = (float)src.getHeight() / (float)dst.getHeight();
1154 float sZ = (float)src.getDepth() / (float)dst.getDepth();
1155
1156 if (dst.getDepth() == 1 && src.getDepth() == 1)
1157 {
1158 for (int y = 0; y < dst.getHeight(); y++)
1159 for (int x = 0; x < dst.getWidth(); x++)
1160 dst.setPixel(linearToSRGBIfNeeded(dst.getFormat(), src.sample2D(sampler, filter, ((float)x+0.5f)*sX, ((float)y+0.5f)*sY, 0)), x, y);
1161 }
1162 else
1163 {
1164 for (int z = 0; z < dst.getDepth(); z++)
1165 for (int y = 0; y < dst.getHeight(); y++)
1166 for (int x = 0; x < dst.getWidth(); x++)
1167 dst.setPixel(linearToSRGBIfNeeded(dst.getFormat(), src.sample3D(sampler, filter, ((float)x+0.5f)*sX, ((float)y+0.5f)*sY, ((float)z+0.5f)*sZ)), x, y, z);
1168 }
1169 }
1170
estimatePixelValueRange(const ConstPixelBufferAccess & access,Vec4 & minVal,Vec4 & maxVal)1171 void estimatePixelValueRange (const ConstPixelBufferAccess& access, Vec4& minVal, Vec4& maxVal)
1172 {
1173 const TextureFormat& format = access.getFormat();
1174
1175 switch (getTextureChannelClass(format.type))
1176 {
1177 case TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1178 // Normalized unsigned formats.
1179 minVal = Vec4(0.0f);
1180 maxVal = Vec4(1.0f);
1181 break;
1182
1183 case TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1184 // Normalized signed formats.
1185 minVal = Vec4(-1.0f);
1186 maxVal = Vec4(+1.0f);
1187 break;
1188
1189 default:
1190 // \note Samples every 4/8th pixel.
1191 minVal = Vec4(std::numeric_limits<float>::max());
1192 maxVal = Vec4(std::numeric_limits<float>::min());
1193
1194 for (int z = 0; z < access.getDepth(); z += 2)
1195 {
1196 for (int y = 0; y < access.getHeight(); y += 2)
1197 {
1198 for (int x = 0; x < access.getWidth(); x += 2)
1199 {
1200 Vec4 p = access.getPixel(x, y, z);
1201
1202 minVal[0] = (deFloatIsNaN(p[0]) ? minVal[0] : de::min(minVal[0], p[0]));
1203 minVal[1] = (deFloatIsNaN(p[1]) ? minVal[1] : de::min(minVal[1], p[1]));
1204 minVal[2] = (deFloatIsNaN(p[2]) ? minVal[2] : de::min(minVal[2], p[2]));
1205 minVal[3] = (deFloatIsNaN(p[3]) ? minVal[3] : de::min(minVal[3], p[3]));
1206
1207 maxVal[0] = (deFloatIsNaN(p[0]) ? maxVal[0] : de::max(maxVal[0], p[0]));
1208 maxVal[1] = (deFloatIsNaN(p[1]) ? maxVal[1] : de::max(maxVal[1], p[1]));
1209 maxVal[2] = (deFloatIsNaN(p[2]) ? maxVal[2] : de::max(maxVal[2], p[2]));
1210 maxVal[3] = (deFloatIsNaN(p[3]) ? maxVal[3] : de::max(maxVal[3], p[3]));
1211 }
1212 }
1213 }
1214 break;
1215 }
1216 }
1217
computePixelScaleBias(const ConstPixelBufferAccess & access,Vec4 & scale,Vec4 & bias)1218 void computePixelScaleBias (const ConstPixelBufferAccess& access, Vec4& scale, Vec4& bias)
1219 {
1220 Vec4 minVal, maxVal;
1221 estimatePixelValueRange(access, minVal, maxVal);
1222
1223 const float eps = 0.0001f;
1224
1225 for (int c = 0; c < 4; c++)
1226 {
1227 if (maxVal[c] - minVal[c] < eps)
1228 {
1229 scale[c] = (maxVal[c] < eps) ? 1.0f : (1.0f / maxVal[c]);
1230 bias[c] = (c == 3) ? (1.0f - maxVal[c]*scale[c]) : (0.0f - minVal[c]*scale[c]);
1231 }
1232 else
1233 {
1234 scale[c] = 1.0f / (maxVal[c] - minVal[c]);
1235 bias[c] = 0.0f - minVal[c]*scale[c];
1236 }
1237 }
1238 }
1239
getCubeArrayFaceIndex(CubeFace face)1240 int getCubeArrayFaceIndex (CubeFace face)
1241 {
1242 DE_ASSERT((int)face >= 0 && face < CUBEFACE_LAST);
1243
1244 switch (face)
1245 {
1246 case CUBEFACE_POSITIVE_X: return 0;
1247 case CUBEFACE_NEGATIVE_X: return 1;
1248 case CUBEFACE_POSITIVE_Y: return 2;
1249 case CUBEFACE_NEGATIVE_Y: return 3;
1250 case CUBEFACE_POSITIVE_Z: return 4;
1251 case CUBEFACE_NEGATIVE_Z: return 5;
1252
1253 default:
1254 return -1;
1255 }
1256 }
1257
packRGB999E5(const tcu::Vec4 & color)1258 deUint32 packRGB999E5 (const tcu::Vec4& color)
1259 {
1260 const int mBits = 9;
1261 const int eBits = 5;
1262 const int eBias = 15;
1263 const int eMax = (1<<eBits)-1;
1264 const float maxVal = (float)(((1<<mBits) - 1) * (1<<(eMax-eBias))) / (float)(1<<mBits);
1265
1266 float rc = deFloatClamp(color[0], 0.0f, maxVal);
1267 float gc = deFloatClamp(color[1], 0.0f, maxVal);
1268 float bc = deFloatClamp(color[2], 0.0f, maxVal);
1269 float maxc = de::max(rc, de::max(gc, bc));
1270 int exps = de::max(-eBias - 1, deFloorFloatToInt32(deFloatLog2(maxc))) + 1 + eBias;
1271 float e = deFloatPow(2.0f, (float)(exps-eBias-mBits));
1272 int maxs = deFloorFloatToInt32(maxc / e + 0.5f);
1273
1274 if (maxs == (1<<mBits))
1275 {
1276 exps++;
1277 e *= 2.0f;
1278 }
1279
1280 deUint32 rs = (deUint32)deFloorFloatToInt32(rc / e + 0.5f);
1281 deUint32 gs = (deUint32)deFloorFloatToInt32(gc / e + 0.5f);
1282 deUint32 bs = (deUint32)deFloorFloatToInt32(bc / e + 0.5f);
1283
1284 DE_ASSERT((exps & ~((1<<5)-1)) == 0);
1285 DE_ASSERT((rs & ~((1<<9)-1)) == 0);
1286 DE_ASSERT((gs & ~((1<<9)-1)) == 0);
1287 DE_ASSERT((bs & ~((1<<9)-1)) == 0);
1288
1289 return rs | (gs << 9) | (bs << 18) | (exps << 27);
1290 }
1291
1292 // Sampler utils
1293
addOffset(const void * ptr,int numBytes)1294 static const void* addOffset (const void* ptr, int numBytes)
1295 {
1296 return (const deUint8*)ptr + numBytes;
1297 }
1298
addOffset(void * ptr,int numBytes)1299 static void* addOffset (void* ptr, int numBytes)
1300 {
1301 return (deUint8*)ptr + numBytes;
1302 }
1303
1304 template <typename AccessType>
toSamplerAccess(const AccessType & baseAccess,Sampler::DepthStencilMode mode)1305 static AccessType toSamplerAccess (const AccessType& baseAccess, Sampler::DepthStencilMode mode)
1306 {
1307 // make sure to update this if type table is updated
1308 DE_STATIC_ASSERT(TextureFormat::CHANNELTYPE_LAST == 48);
1309
1310 if (!isCombinedDepthStencilType(baseAccess.getFormat().type))
1311 return baseAccess;
1312 else
1313 {
1314 #if (DE_ENDIANNESS == DE_LITTLE_ENDIAN)
1315 const deUint32 uint32ByteOffsetBits0To8 = 0; //!< least significant byte in the lowest address
1316 const deUint32 uint32ByteOffsetBits0To24 = 0;
1317 const deUint32 uint32ByteOffsetBits8To32 = 1;
1318 const deUint32 uint32ByteOffsetBits16To32 = 2;
1319 const deUint32 uint32ByteOffsetBits24To32 = 3;
1320 #else
1321 const deUint32 uint32ByteOffsetBits0To8 = 3; //!< least significant byte in the highest address
1322 const deUint32 uint32ByteOffsetBits0To24 = 1;
1323 const deUint32 uint32ByteOffsetBits8To32 = 0;
1324 const deUint32 uint32ByteOffsetBits16To32 = 0;
1325 const deUint32 uint32ByteOffsetBits24To32 = 0;
1326 #endif
1327
1328 // Sampled channel must exist
1329 DE_ASSERT(baseAccess.getFormat().order == TextureFormat::DS ||
1330 (mode == Sampler::MODE_DEPTH && baseAccess.getFormat().order == TextureFormat::D) ||
1331 (mode == Sampler::MODE_STENCIL && baseAccess.getFormat().order == TextureFormat::S));
1332
1333 // combined formats have multiple channel classes, detect on sampler settings
1334 switch (baseAccess.getFormat().type)
1335 {
1336 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV:
1337 {
1338 if (mode == Sampler::MODE_DEPTH)
1339 {
1340 // select the float component
1341 return AccessType(TextureFormat(TextureFormat::D, TextureFormat::FLOAT),
1342 baseAccess.getSize(),
1343 baseAccess.getPitch(),
1344 baseAccess.getDataPtr());
1345 }
1346 else if (mode == Sampler::MODE_STENCIL)
1347 {
1348 // select the uint 8 component
1349 return AccessType(TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8),
1350 baseAccess.getSize(),
1351 baseAccess.getPitch(),
1352 addOffset(baseAccess.getDataPtr(), 4 + uint32ByteOffsetBits0To8));
1353 }
1354 else
1355 {
1356 // unknown sampler mode
1357 DE_ASSERT(false);
1358 return AccessType();
1359 }
1360 }
1361
1362 case TextureFormat::UNSIGNED_INT_16_8_8:
1363 {
1364 if (mode == Sampler::MODE_DEPTH)
1365 {
1366 // select the unorm16 component
1367 return AccessType(TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT16),
1368 baseAccess.getSize(),
1369 baseAccess.getPitch(),
1370 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits16To32));
1371 }
1372 else if (mode == Sampler::MODE_STENCIL)
1373 {
1374 // select the uint 8 component
1375 return AccessType(TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8),
1376 baseAccess.getSize(),
1377 baseAccess.getPitch(),
1378 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits0To8));
1379 }
1380 else
1381 {
1382 // unknown sampler mode
1383 DE_ASSERT(false);
1384 return AccessType();
1385 }
1386 }
1387
1388 case TextureFormat::UNSIGNED_INT_24_8:
1389 {
1390 if (mode == Sampler::MODE_DEPTH)
1391 {
1392 // select the unorm24 component
1393 return AccessType(TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT24),
1394 baseAccess.getSize(),
1395 baseAccess.getPitch(),
1396 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits8To32));
1397 }
1398 else if (mode == Sampler::MODE_STENCIL)
1399 {
1400 // select the uint 8 component
1401 return AccessType(TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8),
1402 baseAccess.getSize(),
1403 baseAccess.getPitch(),
1404 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits0To8));
1405 }
1406 else
1407 {
1408 // unknown sampler mode
1409 DE_ASSERT(false);
1410 return AccessType();
1411 }
1412 }
1413
1414 case TextureFormat::UNSIGNED_INT_24_8_REV:
1415 {
1416 if (mode == Sampler::MODE_DEPTH)
1417 {
1418 // select the unorm24 component
1419 return AccessType(TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT24),
1420 baseAccess.getSize(),
1421 baseAccess.getPitch(),
1422 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits0To24));
1423 }
1424 else if (mode == Sampler::MODE_STENCIL)
1425 {
1426 // select the uint 8 component
1427 return AccessType(TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8),
1428 baseAccess.getSize(),
1429 baseAccess.getPitch(),
1430 addOffset(baseAccess.getDataPtr(), uint32ByteOffsetBits24To32));
1431 }
1432 else
1433 {
1434 // unknown sampler mode
1435 DE_ASSERT(false);
1436 return AccessType();
1437 }
1438 }
1439
1440 default:
1441 {
1442 // unknown combined format
1443 DE_ASSERT(false);
1444 return AccessType();
1445 }
1446 }
1447 }
1448 }
1449
getEffectiveDepthStencilAccess(const PixelBufferAccess & baseAccess,Sampler::DepthStencilMode mode)1450 PixelBufferAccess getEffectiveDepthStencilAccess (const PixelBufferAccess& baseAccess, Sampler::DepthStencilMode mode)
1451 {
1452 return toSamplerAccess<PixelBufferAccess>(baseAccess, mode);
1453 }
1454
getEffectiveDepthStencilAccess(const ConstPixelBufferAccess & baseAccess,Sampler::DepthStencilMode mode)1455 ConstPixelBufferAccess getEffectiveDepthStencilAccess (const ConstPixelBufferAccess& baseAccess, Sampler::DepthStencilMode mode)
1456 {
1457 return toSamplerAccess<ConstPixelBufferAccess>(baseAccess, mode);
1458 }
1459
getEffectiveDepthStencilTextureFormat(const TextureFormat & baseFormat,Sampler::DepthStencilMode mode)1460 TextureFormat getEffectiveDepthStencilTextureFormat (const TextureFormat& baseFormat, Sampler::DepthStencilMode mode)
1461 {
1462 return toSamplerAccess(ConstPixelBufferAccess(baseFormat, IVec3(0, 0, 0), DE_NULL), mode).getFormat();
1463 }
1464
1465 template <typename ViewType>
getEffectiveTView(const ViewType & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1466 ViewType getEffectiveTView (const ViewType& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1467 {
1468 storage.resize(src.getNumLevels());
1469
1470 ViewType view = ViewType(src.getNumLevels(), &storage[0]);
1471
1472 for (int levelNdx = 0; levelNdx < src.getNumLevels(); ++levelNdx)
1473 storage[levelNdx] = tcu::getEffectiveDepthStencilAccess(src.getLevel(levelNdx), sampler.depthStencilMode);
1474
1475 return view;
1476 }
1477
getEffectiveTView(const tcu::TextureCubeView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1478 tcu::TextureCubeView getEffectiveTView (const tcu::TextureCubeView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1479 {
1480 storage.resize(tcu::CUBEFACE_LAST * src.getNumLevels());
1481
1482 const tcu::ConstPixelBufferAccess* storagePtrs[tcu::CUBEFACE_LAST] =
1483 {
1484 &storage[0 * src.getNumLevels()],
1485 &storage[1 * src.getNumLevels()],
1486 &storage[2 * src.getNumLevels()],
1487 &storage[3 * src.getNumLevels()],
1488 &storage[4 * src.getNumLevels()],
1489 &storage[5 * src.getNumLevels()],
1490 };
1491
1492 tcu::TextureCubeView view = tcu::TextureCubeView(src.getNumLevels(), storagePtrs);
1493
1494 for (int faceNdx = 0; faceNdx < tcu::CUBEFACE_LAST; ++faceNdx)
1495 for (int levelNdx = 0; levelNdx < src.getNumLevels(); ++levelNdx)
1496 storage[faceNdx * src.getNumLevels() + levelNdx] = tcu::getEffectiveDepthStencilAccess(src.getLevelFace(levelNdx, (tcu::CubeFace)faceNdx), sampler.depthStencilMode);
1497
1498 return view;
1499 }
1500
getEffectiveTextureView(const tcu::Texture1DView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1501 tcu::Texture1DView getEffectiveTextureView (const tcu::Texture1DView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1502 {
1503 return getEffectiveTView(src, storage, sampler);
1504 }
1505
getEffectiveTextureView(const tcu::Texture2DView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1506 tcu::Texture2DView getEffectiveTextureView (const tcu::Texture2DView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1507 {
1508 return getEffectiveTView(src, storage, sampler);
1509 }
1510
getEffectiveTextureView(const tcu::Texture3DView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1511 tcu::Texture3DView getEffectiveTextureView (const tcu::Texture3DView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1512 {
1513 return getEffectiveTView(src, storage, sampler);
1514 }
1515
getEffectiveTextureView(const tcu::Texture1DArrayView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1516 tcu::Texture1DArrayView getEffectiveTextureView (const tcu::Texture1DArrayView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1517 {
1518 return getEffectiveTView(src, storage, sampler);
1519 }
1520
getEffectiveTextureView(const tcu::Texture2DArrayView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1521 tcu::Texture2DArrayView getEffectiveTextureView (const tcu::Texture2DArrayView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1522 {
1523 return getEffectiveTView(src, storage, sampler);
1524 }
1525
getEffectiveTextureView(const tcu::TextureCubeView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1526 tcu::TextureCubeView getEffectiveTextureView (const tcu::TextureCubeView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1527 {
1528 return getEffectiveTView(src, storage, sampler);
1529 }
1530
getEffectiveTextureView(const tcu::TextureCubeArrayView & src,std::vector<tcu::ConstPixelBufferAccess> & storage,const tcu::Sampler & sampler)1531 tcu::TextureCubeArrayView getEffectiveTextureView (const tcu::TextureCubeArrayView& src, std::vector<tcu::ConstPixelBufferAccess>& storage, const tcu::Sampler& sampler)
1532 {
1533 return getEffectiveTView(src, storage, sampler);
1534 }
1535
1536 //! Returns the effective swizzle of a border color. The effective swizzle is the
1537 //! equal to first writing an RGBA color with a write swizzle and then reading
1538 //! it back using a read swizzle, i.e. BorderSwizzle(c) == readSwizzle(writeSwizzle(C))
getBorderColorReadSwizzle(TextureFormat::ChannelOrder order)1539 static const TextureSwizzle& getBorderColorReadSwizzle (TextureFormat::ChannelOrder order)
1540 {
1541 // make sure to update these tables when channel orders are updated
1542 DE_STATIC_ASSERT(TextureFormat::CHANNELORDER_LAST == 21);
1543
1544 static const TextureSwizzle INV = {{ TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE }};
1545 static const TextureSwizzle R = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE }};
1546 static const TextureSwizzle A = {{ TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_3 }};
1547 static const TextureSwizzle I = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0 }};
1548 static const TextureSwizzle L = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ONE }};
1549 static const TextureSwizzle LA = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3 }};
1550 static const TextureSwizzle RG = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE }};
1551 static const TextureSwizzle RA = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_3 }};
1552 static const TextureSwizzle RGB = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_ONE }};
1553 static const TextureSwizzle RGBA = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_1, TextureSwizzle::CHANNEL_2, TextureSwizzle::CHANNEL_3 }};
1554 static const TextureSwizzle D = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE }};
1555 static const TextureSwizzle S = {{ TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ZERO, TextureSwizzle::CHANNEL_ONE }};
1556
1557 const TextureSwizzle* swizzle;
1558
1559 switch (order)
1560 {
1561 case TextureFormat::R: swizzle = &R; break;
1562 case TextureFormat::A: swizzle = &A; break;
1563 case TextureFormat::I: swizzle = &I; break;
1564 case TextureFormat::L: swizzle = &L; break;
1565 case TextureFormat::LA: swizzle = &LA; break;
1566 case TextureFormat::RG: swizzle = &RG; break;
1567 case TextureFormat::RA: swizzle = &RA; break;
1568 case TextureFormat::RGB: swizzle = &RGB; break;
1569 case TextureFormat::RGBA: swizzle = &RGBA; break;
1570 case TextureFormat::ARGB: swizzle = &RGBA; break;
1571 case TextureFormat::BGR: swizzle = &RGB; break;
1572 case TextureFormat::BGRA: swizzle = &RGBA; break;
1573 case TextureFormat::sR: swizzle = &R; break;
1574 case TextureFormat::sRG: swizzle = &RG; break;
1575 case TextureFormat::sRGB: swizzle = &RGB; break;
1576 case TextureFormat::sRGBA: swizzle = &RGBA; break;
1577 case TextureFormat::sBGR: swizzle = &RGB; break;
1578 case TextureFormat::sBGRA: swizzle = &RGBA; break;
1579 case TextureFormat::D: swizzle = &D; break;
1580 case TextureFormat::S: swizzle = &S; break;
1581
1582 case TextureFormat::DS:
1583 DE_ASSERT(false); // combined depth-stencil border color?
1584 swizzle = &INV;
1585 break;
1586
1587 default:
1588 DE_ASSERT(false);
1589 swizzle = &INV;
1590 break;
1591 }
1592
1593 #ifdef DE_DEBUG
1594
1595 {
1596 // check that BorderSwizzle(c) == readSwizzle(writeSwizzle(C))
1597 const TextureSwizzle& readSwizzle = getChannelReadSwizzle(order);
1598 const TextureSwizzle& writeSwizzle = getChannelWriteSwizzle(order);
1599
1600 for (int ndx = 0; ndx < 4; ++ndx)
1601 {
1602 TextureSwizzle::Channel writeRead = readSwizzle.components[ndx];
1603 if (deInRange32(writeRead, TextureSwizzle::CHANNEL_0, TextureSwizzle::CHANNEL_3) == DE_TRUE)
1604 writeRead = writeSwizzle.components[(int)writeRead];
1605 DE_ASSERT(writeRead == swizzle->components[ndx]);
1606 }
1607 }
1608
1609 #endif
1610
1611 return *swizzle;
1612 }
1613
getNBitUnsignedIntegerVec4MaxValue(const tcu::IVec4 & numBits)1614 static tcu::UVec4 getNBitUnsignedIntegerVec4MaxValue (const tcu::IVec4& numBits)
1615 {
1616 return tcu::UVec4((numBits[0] > 0) ? (deUintMaxValue32(numBits[0])) : (0),
1617 (numBits[1] > 0) ? (deUintMaxValue32(numBits[1])) : (0),
1618 (numBits[2] > 0) ? (deUintMaxValue32(numBits[2])) : (0),
1619 (numBits[3] > 0) ? (deUintMaxValue32(numBits[3])) : (0));
1620 }
1621
getNBitSignedIntegerVec4MaxValue(const tcu::IVec4 & numBits)1622 static tcu::IVec4 getNBitSignedIntegerVec4MaxValue (const tcu::IVec4& numBits)
1623 {
1624 return tcu::IVec4((numBits[0] > 0) ? (deIntMaxValue32(numBits[0])) : (0),
1625 (numBits[1] > 0) ? (deIntMaxValue32(numBits[1])) : (0),
1626 (numBits[2] > 0) ? (deIntMaxValue32(numBits[2])) : (0),
1627 (numBits[3] > 0) ? (deIntMaxValue32(numBits[3])) : (0));
1628 }
1629
getNBitSignedIntegerVec4MinValue(const tcu::IVec4 & numBits)1630 static tcu::IVec4 getNBitSignedIntegerVec4MinValue (const tcu::IVec4& numBits)
1631 {
1632 return tcu::IVec4((numBits[0] > 0) ? (deIntMinValue32(numBits[0])) : (0),
1633 (numBits[1] > 0) ? (deIntMinValue32(numBits[1])) : (0),
1634 (numBits[2] > 0) ? (deIntMinValue32(numBits[2])) : (0),
1635 (numBits[3] > 0) ? (deIntMinValue32(numBits[3])) : (0));
1636 }
1637
getTextureBorderColorFloat(const TextureFormat & format,const Sampler & sampler)1638 static tcu::Vec4 getTextureBorderColorFloat (const TextureFormat& format, const Sampler& sampler)
1639 {
1640 const tcu::TextureChannelClass channelClass = getTextureChannelClass(format.type);
1641 const TextureSwizzle::Channel* channelMap = getBorderColorReadSwizzle(format.order).components;
1642 const bool isFloat = channelClass == tcu::TEXTURECHANNELCLASS_FLOATING_POINT;
1643 const bool isSigned = channelClass != tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
1644 const float valueMin = (isSigned) ? (-1.0f) : (0.0f);
1645 const float valueMax = 1.0f;
1646 Vec4 result;
1647
1648 DE_ASSERT(channelClass == tcu::TEXTURECHANNELCLASS_FLOATING_POINT ||
1649 channelClass == tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT ||
1650 channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT);
1651
1652 for (int c = 0; c < 4; c++)
1653 {
1654 const TextureSwizzle::Channel map = channelMap[c];
1655 if (map == TextureSwizzle::CHANNEL_ZERO)
1656 result[c] = 0.0f;
1657 else if (map == TextureSwizzle::CHANNEL_ONE)
1658 result[c] = 1.0f;
1659 else if (isFloat)
1660 {
1661 // floating point values are not clamped
1662 result[c] = sampler.borderColor.getAccess<float>()[(int)map];
1663 }
1664 else
1665 {
1666 // fixed point values are clamped to a representable range
1667 result[c] = de::clamp(sampler.borderColor.getAccess<float>()[(int)map], valueMin, valueMax);
1668 }
1669 }
1670
1671 return result;
1672 }
1673
getTextureBorderColorInt(const TextureFormat & format,const Sampler & sampler)1674 static tcu::IVec4 getTextureBorderColorInt (const TextureFormat& format, const Sampler& sampler)
1675 {
1676 const tcu::TextureChannelClass channelClass = getTextureChannelClass(format.type);
1677 const TextureSwizzle::Channel* channelMap = getBorderColorReadSwizzle(format.order).components;
1678 const IVec4 channelBits = getChannelBitDepth(format.type);
1679 const IVec4 valueMin = getNBitSignedIntegerVec4MinValue(channelBits);
1680 const IVec4 valueMax = getNBitSignedIntegerVec4MaxValue(channelBits);
1681 IVec4 result;
1682
1683 DE_ASSERT(channelClass == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER);
1684 DE_UNREF(channelClass);
1685
1686 for (int c = 0; c < 4; c++)
1687 {
1688 const TextureSwizzle::Channel map = channelMap[c];
1689 if (map == TextureSwizzle::CHANNEL_ZERO)
1690 result[c] = 0;
1691 else if (map == TextureSwizzle::CHANNEL_ONE)
1692 result[c] = 1;
1693 else
1694 {
1695 // integer values are clamped to a representable range
1696 result[c] = de::clamp(sampler.borderColor.getAccess<deInt32>()[(int)map], valueMin[(int)map], valueMax[(int)map]);
1697 }
1698 }
1699
1700 return result;
1701 }
1702
getTextureBorderColorUint(const TextureFormat & format,const Sampler & sampler)1703 static tcu::UVec4 getTextureBorderColorUint (const TextureFormat& format, const Sampler& sampler)
1704 {
1705 const tcu::TextureChannelClass channelClass = getTextureChannelClass(format.type);
1706 const TextureSwizzle::Channel* channelMap = getBorderColorReadSwizzle(format.order).components;
1707 const IVec4 channelBits = getChannelBitDepth(format.type);
1708 const UVec4 valueMax = getNBitUnsignedIntegerVec4MaxValue(channelBits);
1709 UVec4 result;
1710
1711 DE_ASSERT(channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER);
1712 DE_UNREF(channelClass);
1713
1714 for (int c = 0; c < 4; c++)
1715 {
1716 const TextureSwizzle::Channel map = channelMap[c];
1717 if (map == TextureSwizzle::CHANNEL_ZERO)
1718 result[c] = 0;
1719 else if (map == TextureSwizzle::CHANNEL_ONE)
1720 result[c] = 1;
1721 else
1722 {
1723 // integer values are clamped to a representable range
1724 result[c] = de::min(sampler.borderColor.getAccess<deUint32>()[(int)map], valueMax[(int)map]);
1725 }
1726 }
1727
1728 return result;
1729 }
1730
1731 template <typename ScalarType>
sampleTextureBorder(const TextureFormat & format,const Sampler & sampler)1732 tcu::Vector<ScalarType, 4> sampleTextureBorder (const TextureFormat& format, const Sampler& sampler)
1733 {
1734 const tcu::TextureChannelClass channelClass = getTextureChannelClass(format.type);
1735
1736 switch (channelClass)
1737 {
1738 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1739 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1740 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1741 return getTextureBorderColorFloat(format, sampler).cast<ScalarType>();
1742
1743 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1744 return getTextureBorderColorInt(format, sampler).cast<ScalarType>();
1745
1746 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1747 return getTextureBorderColorUint(format, sampler).cast<ScalarType>();
1748
1749 default:
1750 DE_ASSERT(false);
1751 return tcu::Vector<ScalarType, 4>();
1752 }
1753 }
1754
1755 // instantiation
1756 template tcu::Vector<float, 4> sampleTextureBorder (const TextureFormat& format, const Sampler& sampler);
1757 template tcu::Vector<deInt32, 4> sampleTextureBorder (const TextureFormat& format, const Sampler& sampler);
1758 template tcu::Vector<deUint32, 4> sampleTextureBorder (const TextureFormat& format, const Sampler& sampler);
1759
1760 } // tcu
1761