1 /*-------------------------------------------------------------------------
2 * drawElements Quality Program OpenGL ES Utilities
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 format utilities.
22 *//*--------------------------------------------------------------------*/
23
24 #include "gluTextureUtil.hpp"
25 #include "gluRenderContext.hpp"
26 #include "gluContextInfo.hpp"
27 #include "tcuTextureUtil.hpp"
28 #include "tcuFormatUtil.hpp"
29 #include "glwEnums.hpp"
30
31 namespace glu
32 {
33
34 using std::string;
35
36 /*--------------------------------------------------------------------*//*!
37 * \brief Map tcu::TextureFormat to GL pixel transfer format.
38 *
39 * Maps generic texture format description to GL pixel transfer format.
40 * If no mapping is found, throws tcu::InternalError.
41 *
42 * \param texFormat Generic texture format.
43 * \return GL pixel transfer format.
44 *//*--------------------------------------------------------------------*/
getTransferFormat(tcu::TextureFormat texFormat)45 TransferFormat getTransferFormat (tcu::TextureFormat texFormat)
46 {
47 using tcu::TextureFormat;
48
49 deUint32 format = GL_NONE;
50 deUint32 type = GL_NONE;
51 bool isInt = false;
52
53 switch (texFormat.type)
54 {
55 case TextureFormat::SIGNED_INT8:
56 case TextureFormat::SIGNED_INT16:
57 case TextureFormat::SIGNED_INT32:
58 case TextureFormat::UNSIGNED_INT8:
59 case TextureFormat::UNSIGNED_INT16:
60 case TextureFormat::UNSIGNED_INT32:
61 case TextureFormat::UNSIGNED_INT_1010102_REV:
62 isInt = true;
63 break;
64
65 default:
66 isInt = false;
67 break;
68 }
69
70 switch (texFormat.order)
71 {
72 case TextureFormat::A: format = GL_ALPHA; break;
73 case TextureFormat::L: format = GL_LUMINANCE; break;
74 case TextureFormat::LA: format = GL_LUMINANCE_ALPHA; break;
75 case TextureFormat::R: format = isInt ? GL_RED_INTEGER : GL_RED; break;
76 case TextureFormat::RG: format = isInt ? GL_RG_INTEGER : GL_RG; break;
77 case TextureFormat::RGB: format = isInt ? GL_RGB_INTEGER : GL_RGB; break;
78 case TextureFormat::RGBA: format = isInt ? GL_RGBA_INTEGER : GL_RGBA; break;
79 case TextureFormat::sR: format = GL_RED; break;
80 case TextureFormat::sRG: format = GL_RG; break;
81 case TextureFormat::sRGB: format = GL_RGB; break;
82 case TextureFormat::sRGBA: format = GL_RGBA; break;
83 case TextureFormat::D: format = GL_DEPTH_COMPONENT; break;
84 case TextureFormat::DS: format = GL_DEPTH_STENCIL; break;
85 case TextureFormat::S: format = GL_STENCIL_INDEX; break;
86
87 case TextureFormat::BGRA:
88 DE_ASSERT(!isInt);
89 format = GL_BGRA;
90 break;
91
92 default:
93 DE_ASSERT(false);
94 }
95
96 switch (texFormat.type)
97 {
98 case TextureFormat::SNORM_INT8: type = GL_BYTE; break;
99 case TextureFormat::SNORM_INT16: type = GL_SHORT; break;
100 case TextureFormat::UNORM_INT8: type = GL_UNSIGNED_BYTE; break;
101 case TextureFormat::UNORM_INT16: type = GL_UNSIGNED_SHORT; break;
102 case TextureFormat::UNORM_SHORT_565: type = GL_UNSIGNED_SHORT_5_6_5; break;
103 case TextureFormat::UNORM_SHORT_4444: type = GL_UNSIGNED_SHORT_4_4_4_4; break;
104 case TextureFormat::UNORM_SHORT_5551: type = GL_UNSIGNED_SHORT_5_5_5_1; break;
105 case TextureFormat::SIGNED_INT8: type = GL_BYTE; break;
106 case TextureFormat::SIGNED_INT16: type = GL_SHORT; break;
107 case TextureFormat::SIGNED_INT32: type = GL_INT; break;
108 case TextureFormat::UNSIGNED_INT8: type = GL_UNSIGNED_BYTE; break;
109 case TextureFormat::UNSIGNED_INT16: type = GL_UNSIGNED_SHORT; break;
110 case TextureFormat::UNSIGNED_INT32: type = GL_UNSIGNED_INT; break;
111 case TextureFormat::FLOAT: type = GL_FLOAT; break;
112 case TextureFormat::UNORM_INT_101010: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
113 case TextureFormat::UNORM_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
114 case TextureFormat::UNSIGNED_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
115 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: type = GL_UNSIGNED_INT_10F_11F_11F_REV; break;
116 case TextureFormat::UNSIGNED_INT_999_E5_REV: type = GL_UNSIGNED_INT_5_9_9_9_REV; break;
117 case TextureFormat::HALF_FLOAT: type = GL_HALF_FLOAT; break;
118 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: type = GL_FLOAT_32_UNSIGNED_INT_24_8_REV; break;
119 case TextureFormat::UNSIGNED_INT_24_8: type = texFormat.order == TextureFormat::D
120 ? GL_UNSIGNED_INT
121 : GL_UNSIGNED_INT_24_8; break;
122
123 default:
124 throw tcu::InternalError("Can't map texture format to GL transfer format");
125 }
126
127 return TransferFormat(format, type);
128 }
129
130 /*--------------------------------------------------------------------*//*!
131 * \brief Map tcu::TextureFormat to GL internal sized format.
132 *
133 * Maps generic texture format description to GL internal format.
134 * If no mapping is found, throws tcu::InternalError.
135 *
136 * \param texFormat Generic texture format.
137 * \return GL sized internal format.
138 *//*--------------------------------------------------------------------*/
getInternalFormat(tcu::TextureFormat texFormat)139 deUint32 getInternalFormat (tcu::TextureFormat texFormat)
140 {
141 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELORDER_LAST < (1<<16));
142 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELTYPE_LAST < (1<<16));
143
144 #define PACK_FMT(ORDER, TYPE) ((int(ORDER) << 16) | int(TYPE))
145 #define FMT_CASE(ORDER, TYPE) PACK_FMT(tcu::TextureFormat::ORDER, tcu::TextureFormat::TYPE)
146
147 switch (PACK_FMT(texFormat.order, texFormat.type))
148 {
149 case FMT_CASE(RGBA, UNORM_SHORT_5551): return GL_RGB5_A1;
150 case FMT_CASE(RGBA, UNORM_SHORT_4444): return GL_RGBA4;
151 case FMT_CASE(RGB, UNORM_SHORT_565): return GL_RGB565;
152 case FMT_CASE(D, UNORM_INT16): return GL_DEPTH_COMPONENT16;
153 case FMT_CASE(S, UNSIGNED_INT8): return GL_STENCIL_INDEX8;
154
155 case FMT_CASE(RGBA, FLOAT): return GL_RGBA32F;
156 case FMT_CASE(RGBA, SIGNED_INT32): return GL_RGBA32I;
157 case FMT_CASE(RGBA, UNSIGNED_INT32): return GL_RGBA32UI;
158 case FMT_CASE(RGBA, UNORM_INT16): return GL_RGBA16;
159 case FMT_CASE(RGBA, SNORM_INT16): return GL_RGBA16_SNORM;
160 case FMT_CASE(RGBA, HALF_FLOAT): return GL_RGBA16F;
161 case FMT_CASE(RGBA, SIGNED_INT16): return GL_RGBA16I;
162 case FMT_CASE(RGBA, UNSIGNED_INT16): return GL_RGBA16UI;
163 case FMT_CASE(RGBA, UNORM_INT8): return GL_RGBA8;
164 case FMT_CASE(RGBA, SIGNED_INT8): return GL_RGBA8I;
165 case FMT_CASE(RGBA, UNSIGNED_INT8): return GL_RGBA8UI;
166 case FMT_CASE(sRGBA, UNORM_INT8): return GL_SRGB8_ALPHA8;
167 case FMT_CASE(RGBA, UNORM_INT_1010102_REV): return GL_RGB10_A2;
168 case FMT_CASE(RGBA, UNSIGNED_INT_1010102_REV): return GL_RGB10_A2UI;
169 case FMT_CASE(RGBA, SNORM_INT8): return GL_RGBA8_SNORM;
170
171 case FMT_CASE(RGB, UNORM_INT8): return GL_RGB8;
172 case FMT_CASE(RGB, UNSIGNED_INT_11F_11F_10F_REV): return GL_R11F_G11F_B10F;
173 case FMT_CASE(RGB, FLOAT): return GL_RGB32F;
174 case FMT_CASE(RGB, SIGNED_INT32): return GL_RGB32I;
175 case FMT_CASE(RGB, UNSIGNED_INT32): return GL_RGB32UI;
176 case FMT_CASE(RGB, UNORM_INT16): return GL_RGB16;
177 case FMT_CASE(RGB, SNORM_INT16): return GL_RGB16_SNORM;
178 case FMT_CASE(RGB, HALF_FLOAT): return GL_RGB16F;
179 case FMT_CASE(RGB, SIGNED_INT16): return GL_RGB16I;
180 case FMT_CASE(RGB, UNSIGNED_INT16): return GL_RGB16UI;
181 case FMT_CASE(RGB, SNORM_INT8): return GL_RGB8_SNORM;
182 case FMT_CASE(RGB, SIGNED_INT8): return GL_RGB8I;
183 case FMT_CASE(RGB, UNSIGNED_INT8): return GL_RGB8UI;
184 case FMT_CASE(sRGB, UNORM_INT8): return GL_SRGB8;
185 case FMT_CASE(RGB, UNSIGNED_INT_999_E5_REV): return GL_RGB9_E5;
186 case FMT_CASE(RGB, UNORM_INT_1010102_REV): return GL_RGB10;
187
188 case FMT_CASE(RG, FLOAT): return GL_RG32F;
189 case FMT_CASE(RG, SIGNED_INT32): return GL_RG32I;
190 case FMT_CASE(RG, UNSIGNED_INT32): return GL_RG32UI;
191 case FMT_CASE(RG, UNORM_INT16): return GL_RG16;
192 case FMT_CASE(RG, SNORM_INT16): return GL_RG16_SNORM;
193 case FMT_CASE(RG, HALF_FLOAT): return GL_RG16F;
194 case FMT_CASE(RG, SIGNED_INT16): return GL_RG16I;
195 case FMT_CASE(RG, UNSIGNED_INT16): return GL_RG16UI;
196 case FMT_CASE(RG, UNORM_INT8): return GL_RG8;
197 case FMT_CASE(RG, SIGNED_INT8): return GL_RG8I;
198 case FMT_CASE(RG, UNSIGNED_INT8): return GL_RG8UI;
199 case FMT_CASE(RG, SNORM_INT8): return GL_RG8_SNORM;
200 case FMT_CASE(sRG, UNORM_INT8): return GL_SRG8_EXT;
201
202 case FMT_CASE(R, FLOAT): return GL_R32F;
203 case FMT_CASE(R, SIGNED_INT32): return GL_R32I;
204 case FMT_CASE(R, UNSIGNED_INT32): return GL_R32UI;
205 case FMT_CASE(R, UNORM_INT16): return GL_R16;
206 case FMT_CASE(R, SNORM_INT16): return GL_R16_SNORM;
207 case FMT_CASE(R, HALF_FLOAT): return GL_R16F;
208 case FMT_CASE(R, SIGNED_INT16): return GL_R16I;
209 case FMT_CASE(R, UNSIGNED_INT16): return GL_R16UI;
210 case FMT_CASE(R, UNORM_INT8): return GL_R8;
211 case FMT_CASE(R, SIGNED_INT8): return GL_R8I;
212 case FMT_CASE(R, UNSIGNED_INT8): return GL_R8UI;
213 case FMT_CASE(R, SNORM_INT8): return GL_R8_SNORM;
214 case FMT_CASE(sR, UNORM_INT8): return GL_SR8_EXT;
215
216 case FMT_CASE(D, FLOAT): return GL_DEPTH_COMPONENT32F;
217 case FMT_CASE(D, UNSIGNED_INT_24_8): return GL_DEPTH_COMPONENT24;
218 case FMT_CASE(D, UNSIGNED_INT32): return GL_DEPTH_COMPONENT32;
219 case FMT_CASE(DS, FLOAT_UNSIGNED_INT_24_8_REV): return GL_DEPTH32F_STENCIL8;
220 case FMT_CASE(DS, UNSIGNED_INT_24_8): return GL_DEPTH24_STENCIL8;
221
222 default:
223 throw tcu::InternalError("Can't map texture format to GL internal format");
224 }
225 }
226
227 /*--------------------------------------------------------------------*//*!
228 * \brief Map generic compressed format to GL compressed format enum.
229 *
230 * Maps generic compressed format to GL compressed format enum value.
231 * If no mapping is found, throws tcu::InternalError.
232 *
233 * \param format Generic compressed format.
234 * \return GL compressed texture format.
235 *//*--------------------------------------------------------------------*/
getGLFormat(tcu::CompressedTexFormat format)236 deUint32 getGLFormat (tcu::CompressedTexFormat format)
237 {
238 switch (format)
239 {
240 case tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8: return GL_ETC1_RGB8_OES;
241 case tcu::COMPRESSEDTEXFORMAT_EAC_R11: return GL_COMPRESSED_R11_EAC;
242 case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11: return GL_COMPRESSED_SIGNED_R11_EAC;
243 case tcu::COMPRESSEDTEXFORMAT_EAC_RG11: return GL_COMPRESSED_RG11_EAC;
244 case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11: return GL_COMPRESSED_SIGNED_RG11_EAC;
245 case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8: return GL_COMPRESSED_RGB8_ETC2;
246 case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8: return GL_COMPRESSED_SRGB8_ETC2;
247 case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2;
248 case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2;
249 case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8: return GL_COMPRESSED_RGBA8_ETC2_EAC;
250 case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC;
251
252 case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_4x4_KHR;
253 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x4_KHR;
254 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x5_KHR;
255 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x5_KHR;
256 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x6_KHR;
257 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x5_KHR;
258 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x6_KHR;
259 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x8_KHR;
260 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x5_KHR;
261 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x6_KHR;
262 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x8_KHR;
263 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x10_KHR;
264 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x10_KHR;
265 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x12_KHR;
266 case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR;
267 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR;
268 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR;
269 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR;
270 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR;
271 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR;
272 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR;
273 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR;
274 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR;
275 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR;
276 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR;
277 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR;
278 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR;
279 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR;
280
281 default:
282 throw tcu::InternalError("Can't map compressed format to GL format");
283 }
284 }
285
286 /*--------------------------------------------------------------------*//*!
287 * \brief Map compressed GL format to generic compressed format.
288 *
289 * Maps compressed GL format to generic compressed format.
290 * If no mapping is found, throws tcu::InternalError.
291 *
292 * \param GL compressed texture format.
293 * \return format Generic compressed format.
294 *//*--------------------------------------------------------------------*/
mapGLCompressedTexFormat(deUint32 format)295 tcu::CompressedTexFormat mapGLCompressedTexFormat (deUint32 format)
296 {
297 switch (format)
298 {
299 case GL_ETC1_RGB8_OES: return tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8;
300 case GL_COMPRESSED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_R11;
301 case GL_COMPRESSED_SIGNED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11;
302 case GL_COMPRESSED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_RG11;
303 case GL_COMPRESSED_SIGNED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11;
304 case GL_COMPRESSED_RGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8;
305 case GL_COMPRESSED_SRGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8;
306 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
307 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
308 case GL_COMPRESSED_RGBA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8;
309 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8;
310
311 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA;
312 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA;
313 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA;
314 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA;
315 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA;
316 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA;
317 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA;
318 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA;
319 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA;
320 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA;
321 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA;
322 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA;
323 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA;
324 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA;
325 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8;
326 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8;
327 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8;
328 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8;
329 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8;
330 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8;
331 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8;
332 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8;
333 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8;
334 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8;
335 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8;
336 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8;
337 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8;
338 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8;
339
340 default:
341 throw tcu::InternalError("Can't map compressed GL format to compressed format");
342 }
343 }
344
isCompressedFormat(deUint32 internalFormat)345 bool isCompressedFormat (deUint32 internalFormat)
346 {
347 switch (internalFormat)
348 {
349 case GL_ETC1_RGB8_OES:
350 case GL_COMPRESSED_R11_EAC:
351 case GL_COMPRESSED_SIGNED_R11_EAC:
352 case GL_COMPRESSED_RG11_EAC:
353 case GL_COMPRESSED_SIGNED_RG11_EAC:
354 case GL_COMPRESSED_RGB8_ETC2:
355 case GL_COMPRESSED_SRGB8_ETC2:
356 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
357 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
358 case GL_COMPRESSED_RGBA8_ETC2_EAC:
359 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
360 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
361 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
362 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
363 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
364 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
365 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
366 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
367 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
368 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
369 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
370 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
371 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
372 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
373 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
374 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
375 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
376 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
377 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
378 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
379 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
380 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
381 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
382 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
383 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
384 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
385 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
386 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
387 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
388 return true;
389
390 default:
391 return false;
392 }
393 }
394
mapGLChannelType(deUint32 dataType,bool normalized)395 static tcu::TextureFormat::ChannelType mapGLChannelType (deUint32 dataType, bool normalized)
396 {
397 // \note Normalized bit is ignored where it doesn't apply.
398 using tcu::TextureFormat;
399
400 switch (dataType)
401 {
402 case GL_UNSIGNED_BYTE: return normalized ? TextureFormat::UNORM_INT8 : TextureFormat::UNSIGNED_INT8;
403 case GL_BYTE: return normalized ? TextureFormat::SNORM_INT8 : TextureFormat::SIGNED_INT8;
404 case GL_UNSIGNED_SHORT: return normalized ? TextureFormat::UNORM_INT16 : TextureFormat::UNSIGNED_INT16;
405 case GL_SHORT: return normalized ? TextureFormat::SNORM_INT16 : TextureFormat::SIGNED_INT16;
406 case GL_UNSIGNED_INT: return normalized ? TextureFormat::UNORM_INT32 : TextureFormat::UNSIGNED_INT32;
407 case GL_INT: return normalized ? TextureFormat::SNORM_INT32 : TextureFormat::SIGNED_INT32;
408 case GL_FLOAT: return TextureFormat::FLOAT;
409 case GL_UNSIGNED_SHORT_4_4_4_4: return TextureFormat::UNORM_SHORT_4444;
410 case GL_UNSIGNED_SHORT_5_5_5_1: return TextureFormat::UNORM_SHORT_5551;
411 case GL_UNSIGNED_SHORT_5_6_5: return TextureFormat::UNORM_SHORT_565;
412 case GL_HALF_FLOAT: return TextureFormat::HALF_FLOAT;
413 case GL_UNSIGNED_INT_2_10_10_10_REV: return normalized ? TextureFormat::UNORM_INT_1010102_REV : TextureFormat::UNSIGNED_INT_1010102_REV;
414 case GL_UNSIGNED_INT_10F_11F_11F_REV: return TextureFormat::UNSIGNED_INT_11F_11F_10F_REV;
415 case GL_UNSIGNED_INT_24_8: return TextureFormat::UNSIGNED_INT_24_8;
416 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV;
417 case GL_UNSIGNED_INT_5_9_9_9_REV: return TextureFormat::UNSIGNED_INT_999_E5_REV;
418
419 default:
420 DE_ASSERT(false);
421 return TextureFormat::CHANNELTYPE_LAST;
422 }
423 }
424
425 /*--------------------------------------------------------------------*//*!
426 * \brief Map GL pixel transfer format to tcu::TextureFormat.
427 *
428 * If no mapping is found, throws tcu::InternalError.
429 *
430 * \param format GL pixel format.
431 * \param dataType GL data type.
432 * \return Generic texture format.
433 *//*--------------------------------------------------------------------*/
mapGLTransferFormat(deUint32 format,deUint32 dataType)434 tcu::TextureFormat mapGLTransferFormat (deUint32 format, deUint32 dataType)
435 {
436 using tcu::TextureFormat;
437 switch (format)
438 {
439 case GL_ALPHA: return TextureFormat(TextureFormat::A, mapGLChannelType(dataType, true));
440 case GL_LUMINANCE: return TextureFormat(TextureFormat::L, mapGLChannelType(dataType, true));
441 case GL_LUMINANCE_ALPHA: return TextureFormat(TextureFormat::LA, mapGLChannelType(dataType, true));
442 case GL_RGB: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, true));
443 case GL_RGBA: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, true));
444 case GL_BGRA: return TextureFormat(TextureFormat::BGRA, mapGLChannelType(dataType, true));
445 case GL_RG: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, true));
446 case GL_RED: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, true));
447 case GL_RGBA_INTEGER: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, false));
448 case GL_RGB_INTEGER: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, false));
449 case GL_RG_INTEGER: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, false));
450 case GL_RED_INTEGER: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, false));
451
452 case GL_DEPTH_COMPONENT: return TextureFormat(TextureFormat::D, mapGLChannelType(dataType, true));
453 case GL_DEPTH_STENCIL: return TextureFormat(TextureFormat::DS, mapGLChannelType(dataType, true));
454
455 default:
456 throw tcu::InternalError(string("Can't map GL pixel format (") + tcu::toHex(format).toString() + ", " + tcu::toHex(dataType).toString() + ") to texture format");
457 }
458 }
459
460 /*--------------------------------------------------------------------*//*!
461 * \brief Map GL internal texture format to tcu::TextureFormat.
462 *
463 * If no mapping is found, throws tcu::InternalError.
464 *
465 * \param internalFormat Sized internal format.
466 * \return Generic texture format.
467 *//*--------------------------------------------------------------------*/
mapGLInternalFormat(deUint32 internalFormat)468 tcu::TextureFormat mapGLInternalFormat (deUint32 internalFormat)
469 {
470 using tcu::TextureFormat;
471 switch (internalFormat)
472 {
473 case GL_RGB5_A1: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551);
474 case GL_RGBA4: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_4444);
475 case GL_RGB565: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_SHORT_565);
476 case GL_DEPTH_COMPONENT16: return TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT16);
477 case GL_STENCIL_INDEX8: return TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8);
478
479 case GL_RGBA32F: return TextureFormat(TextureFormat::RGBA, TextureFormat::FLOAT);
480 case GL_RGBA32I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT32);
481 case GL_RGBA32UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT32);
482 case GL_RGBA16: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT16);
483 case GL_RGBA16_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT16);
484 case GL_RGBA16F: return TextureFormat(TextureFormat::RGBA, TextureFormat::HALF_FLOAT);
485 case GL_RGBA16I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT16);
486 case GL_RGBA16UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT16);
487 case GL_RGBA8: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8);
488 case GL_RGBA8I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT8);
489 case GL_RGBA8UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT8);
490 case GL_SRGB8_ALPHA8: return TextureFormat(TextureFormat::sRGBA, TextureFormat::UNORM_INT8);
491 case GL_RGB10_A2: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT_1010102_REV);
492 case GL_RGB10_A2UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV);
493 case GL_RGBA8_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT8);
494
495 case GL_RGB8: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT8);
496 case GL_R11F_G11F_B10F: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_11F_11F_10F_REV);
497 case GL_RGB32F: return TextureFormat(TextureFormat::RGB, TextureFormat::FLOAT);
498 case GL_RGB32I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT32);
499 case GL_RGB32UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT32);
500 case GL_RGB16: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT16);
501 case GL_RGB16_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT16);
502 case GL_RGB16F: return TextureFormat(TextureFormat::RGB, TextureFormat::HALF_FLOAT);
503 case GL_RGB16I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT16);
504 case GL_RGB16UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT16);
505 case GL_RGB8_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT8);
506 case GL_RGB8I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT8);
507 case GL_RGB8UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT8);
508 case GL_SRGB8: return TextureFormat(TextureFormat::sRGB, TextureFormat::UNORM_INT8);
509 case GL_RGB9_E5: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_999_E5_REV);
510 case GL_RGB10: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT_1010102_REV);
511
512 case GL_RG32F: return TextureFormat(TextureFormat::RG, TextureFormat::FLOAT);
513 case GL_RG32I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT32);
514 case GL_RG32UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT32);
515 case GL_RG16: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT16);
516 case GL_RG16_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT16);
517 case GL_RG16F: return TextureFormat(TextureFormat::RG, TextureFormat::HALF_FLOAT);
518 case GL_RG16I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT16);
519 case GL_RG16UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT16);
520 case GL_RG8: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT8);
521 case GL_RG8I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT8);
522 case GL_RG8UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT8);
523 case GL_RG8_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT8);
524 case GL_SRG8_EXT: return TextureFormat(TextureFormat::sRG, TextureFormat::UNORM_INT8);
525
526 case GL_R32F: return TextureFormat(TextureFormat::R, TextureFormat::FLOAT);
527 case GL_R32I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT32);
528 case GL_R32UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT32);
529 case GL_R16: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT16);
530 case GL_R16_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT16);
531 case GL_R16F: return TextureFormat(TextureFormat::R, TextureFormat::HALF_FLOAT);
532 case GL_R16I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT16);
533 case GL_R16UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT16);
534 case GL_R8: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT8);
535 case GL_R8I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT8);
536 case GL_R8UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT8);
537 case GL_R8_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT8);
538 case GL_SR8_EXT: return TextureFormat(TextureFormat::sR, TextureFormat::UNORM_INT8);
539
540 case GL_DEPTH_COMPONENT32F: return TextureFormat(TextureFormat::D, TextureFormat::FLOAT);
541 case GL_DEPTH_COMPONENT24: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT_24_8);
542 case GL_DEPTH_COMPONENT32: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT32);
543 case GL_DEPTH32F_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV);
544 case GL_DEPTH24_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::UNSIGNED_INT_24_8);
545
546 default:
547 throw tcu::InternalError(string("Can't map GL sized internal format (") + tcu::toHex(internalFormat).toString() + ") to texture format");
548 }
549 }
550
isGLInternalColorFormatFilterable(deUint32 format)551 bool isGLInternalColorFormatFilterable (deUint32 format)
552 {
553 switch (format)
554 {
555 case GL_R8:
556 case GL_R8_SNORM:
557 case GL_RG8:
558 case GL_RG8_SNORM:
559 case GL_RGB8:
560 case GL_RGB8_SNORM:
561 case GL_RGB565:
562 case GL_RGBA4:
563 case GL_RGB5_A1:
564 case GL_RGBA8:
565 case GL_RGBA8_SNORM:
566 case GL_RGB10_A2:
567 case GL_SR8_EXT:
568 case GL_SRG8_EXT:
569 case GL_SRGB8:
570 case GL_SRGB8_ALPHA8:
571 case GL_R16F:
572 case GL_RG16F:
573 case GL_RGB16F:
574 case GL_RGBA16F:
575 case GL_R11F_G11F_B10F:
576 case GL_RGB9_E5:
577 return true;
578
579 case GL_RGB10_A2UI:
580 case GL_R32F:
581 case GL_RG32F:
582 case GL_RGB32F:
583 case GL_RGBA32F:
584 case GL_R8I:
585 case GL_R8UI:
586 case GL_R16I:
587 case GL_R16UI:
588 case GL_R32I:
589 case GL_R32UI:
590 case GL_RG8I:
591 case GL_RG8UI:
592 case GL_RG16I:
593 case GL_RG16UI:
594 case GL_RG32I:
595 case GL_RG32UI:
596 case GL_RGB8I:
597 case GL_RGB8UI:
598 case GL_RGB16I:
599 case GL_RGB16UI:
600 case GL_RGB32I:
601 case GL_RGB32UI:
602 case GL_RGBA8I:
603 case GL_RGBA8UI:
604 case GL_RGBA16I:
605 case GL_RGBA16UI:
606 case GL_RGBA32I:
607 case GL_RGBA32UI:
608 return false;
609
610 default:
611 DE_ASSERT(false);
612 return false;
613 }
614 }
615
mapGLWrapMode(deUint32 wrapMode)616 static inline tcu::Sampler::WrapMode mapGLWrapMode (deUint32 wrapMode)
617 {
618 switch (wrapMode)
619 {
620 case GL_CLAMP_TO_EDGE: return tcu::Sampler::CLAMP_TO_EDGE;
621 case GL_CLAMP_TO_BORDER: return tcu::Sampler::CLAMP_TO_BORDER;
622 case GL_REPEAT: return tcu::Sampler::REPEAT_GL;
623 case GL_MIRRORED_REPEAT: return tcu::Sampler::MIRRORED_REPEAT_GL;
624 default:
625 throw tcu::InternalError("Can't map GL wrap mode " + tcu::toHex(wrapMode).toString());
626 }
627 }
628
mapGLMinFilterMode(deUint32 filterMode)629 static inline tcu::Sampler::FilterMode mapGLMinFilterMode (deUint32 filterMode)
630 {
631 switch (filterMode)
632 {
633 case GL_NEAREST: return tcu::Sampler::NEAREST;
634 case GL_LINEAR: return tcu::Sampler::LINEAR;
635 case GL_NEAREST_MIPMAP_NEAREST: return tcu::Sampler::NEAREST_MIPMAP_NEAREST;
636 case GL_NEAREST_MIPMAP_LINEAR: return tcu::Sampler::NEAREST_MIPMAP_LINEAR;
637 case GL_LINEAR_MIPMAP_NEAREST: return tcu::Sampler::LINEAR_MIPMAP_NEAREST;
638 case GL_LINEAR_MIPMAP_LINEAR: return tcu::Sampler::LINEAR_MIPMAP_LINEAR;
639 default:
640 throw tcu::InternalError("Can't map GL min filter mode" + tcu::toHex(filterMode).toString());
641 }
642 }
643
mapGLMagFilterMode(deUint32 filterMode)644 static inline tcu::Sampler::FilterMode mapGLMagFilterMode (deUint32 filterMode)
645 {
646 switch (filterMode)
647 {
648 case GL_NEAREST: return tcu::Sampler::NEAREST;
649 case GL_LINEAR: return tcu::Sampler::LINEAR;
650 default:
651 throw tcu::InternalError("Can't map GL mag filter mode" + tcu::toHex(filterMode).toString());
652 }
653 }
654
655 /*--------------------------------------------------------------------*//*!
656 * \brief Map GL sampler parameters to tcu::Sampler.
657 *
658 * If no mapping is found, throws tcu::InternalError.
659 *
660 * \param wrapS S-component wrap mode
661 * \param minFilter Minification filter mode
662 * \param magFilter Magnification filter mode
663 * \return Sampler description.
664 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 minFilter,deUint32 magFilter)665 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 minFilter, deUint32 magFilter)
666 {
667 return mapGLSampler(wrapS, wrapS, wrapS, minFilter, magFilter);
668 }
669
670
671 /*--------------------------------------------------------------------*//*!
672 * \brief Map GL sampler parameters to tcu::Sampler.
673 *
674 * If no mapping is found, throws tcu::InternalError.
675 *
676 * \param wrapS S-component wrap mode
677 * \param wrapT T-component wrap mode
678 * \param minFilter Minification filter mode
679 * \param magFilter Magnification filter mode
680 * \return Sampler description.
681 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 wrapT,deUint32 minFilter,deUint32 magFilter)682 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter)
683 {
684 return mapGLSampler(wrapS, wrapT, wrapS, minFilter, magFilter);
685 }
686
687 /*--------------------------------------------------------------------*//*!
688 * \brief Map GL sampler parameters to tcu::Sampler.
689 *
690 * If no mapping is found, throws tcu::InternalError.
691 *
692 * \param wrapS S-component wrap mode
693 * \param wrapT T-component wrap mode
694 * \param wrapR R-component wrap mode
695 * \param minFilter Minification filter mode
696 * \param magFilter Magnification filter mode
697 * \return Sampler description.
698 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 wrapT,deUint32 wrapR,deUint32 minFilter,deUint32 magFilter)699 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter)
700 {
701 return tcu::Sampler(mapGLWrapMode(wrapS), mapGLWrapMode(wrapT), mapGLWrapMode(wrapR),
702 mapGLMinFilterMode(minFilter), mapGLMagFilterMode(magFilter),
703 0.0f /* lod threshold */,
704 true /* normalized coords */,
705 tcu::Sampler::COMPAREMODE_NONE /* no compare */,
706 0 /* compare channel */,
707 tcu::Vec4(0.0f) /* border color, not used */);
708 }
709
710 /*--------------------------------------------------------------------*//*!
711 * \brief Map GL compare function to tcu::Sampler::CompareMode.
712 *
713 * If no mapping is found, throws tcu::InternalError.
714 *
715 * \param mode GL compare mode
716 * \return Compare mode
717 *//*--------------------------------------------------------------------*/
mapGLCompareFunc(deUint32 mode)718 tcu::Sampler::CompareMode mapGLCompareFunc (deUint32 mode)
719 {
720 switch (mode)
721 {
722 case GL_LESS: return tcu::Sampler::COMPAREMODE_LESS;
723 case GL_LEQUAL: return tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL;
724 case GL_GREATER: return tcu::Sampler::COMPAREMODE_GREATER;
725 case GL_GEQUAL: return tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL;
726 case GL_EQUAL: return tcu::Sampler::COMPAREMODE_EQUAL;
727 case GL_NOTEQUAL: return tcu::Sampler::COMPAREMODE_NOT_EQUAL;
728 case GL_ALWAYS: return tcu::Sampler::COMPAREMODE_ALWAYS;
729 case GL_NEVER: return tcu::Sampler::COMPAREMODE_NEVER;
730 default:
731 throw tcu::InternalError("Can't map GL compare mode " + tcu::toHex(mode).toString());
732 }
733 }
734
735 /*--------------------------------------------------------------------*//*!
736 * \brief Get GL wrap mode.
737 *
738 * If no mapping is found, throws tcu::InternalError.
739 *
740 * \param wrapMode Wrap mode
741 * \return GL wrap mode
742 *//*--------------------------------------------------------------------*/
getGLWrapMode(tcu::Sampler::WrapMode wrapMode)743 deUint32 getGLWrapMode (tcu::Sampler::WrapMode wrapMode)
744 {
745 DE_ASSERT(wrapMode != tcu::Sampler::WRAPMODE_LAST);
746 switch (wrapMode)
747 {
748 case tcu::Sampler::CLAMP_TO_EDGE: return GL_CLAMP_TO_EDGE;
749 case tcu::Sampler::CLAMP_TO_BORDER: return GL_CLAMP_TO_BORDER;
750 case tcu::Sampler::REPEAT_GL: return GL_REPEAT;
751 case tcu::Sampler::MIRRORED_REPEAT_GL: return GL_MIRRORED_REPEAT;
752 default:
753 throw tcu::InternalError("Can't map wrap mode");
754 }
755 }
756
757 /*--------------------------------------------------------------------*//*!
758 * \brief Get GL filter mode.
759 *
760 * If no mapping is found, throws tcu::InternalError.
761 *
762 * \param filterMode Filter mode
763 * \return GL filter mode
764 *//*--------------------------------------------------------------------*/
getGLFilterMode(tcu::Sampler::FilterMode filterMode)765 deUint32 getGLFilterMode (tcu::Sampler::FilterMode filterMode)
766 {
767 DE_ASSERT(filterMode != tcu::Sampler::FILTERMODE_LAST);
768 switch (filterMode)
769 {
770 case tcu::Sampler::NEAREST: return GL_NEAREST;
771 case tcu::Sampler::LINEAR: return GL_LINEAR;
772 case tcu::Sampler::NEAREST_MIPMAP_NEAREST: return GL_NEAREST_MIPMAP_NEAREST;
773 case tcu::Sampler::NEAREST_MIPMAP_LINEAR: return GL_NEAREST_MIPMAP_LINEAR;
774 case tcu::Sampler::LINEAR_MIPMAP_NEAREST: return GL_LINEAR_MIPMAP_NEAREST;
775 case tcu::Sampler::LINEAR_MIPMAP_LINEAR: return GL_LINEAR_MIPMAP_LINEAR;
776 default:
777 throw tcu::InternalError("Can't map filter mode");
778 }
779 }
780
781 /*--------------------------------------------------------------------*//*!
782 * \brief Get GL compare mode.
783 *
784 * If no mapping is found, throws tcu::InternalError.
785 *
786 * \param compareMode Compare mode
787 * \return GL compare mode
788 *//*--------------------------------------------------------------------*/
getGLCompareFunc(tcu::Sampler::CompareMode compareMode)789 deUint32 getGLCompareFunc (tcu::Sampler::CompareMode compareMode)
790 {
791 DE_ASSERT(compareMode != tcu::Sampler::COMPAREMODE_NONE);
792 switch (compareMode)
793 {
794 case tcu::Sampler::COMPAREMODE_NONE: return GL_NONE;
795 case tcu::Sampler::COMPAREMODE_LESS: return GL_LESS;
796 case tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL: return GL_LEQUAL;
797 case tcu::Sampler::COMPAREMODE_GREATER: return GL_GREATER;
798 case tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL: return GL_GEQUAL;
799 case tcu::Sampler::COMPAREMODE_EQUAL: return GL_EQUAL;
800 case tcu::Sampler::COMPAREMODE_NOT_EQUAL: return GL_NOTEQUAL;
801 case tcu::Sampler::COMPAREMODE_ALWAYS: return GL_ALWAYS;
802 case tcu::Sampler::COMPAREMODE_NEVER: return GL_NEVER;
803 default:
804 throw tcu::InternalError("Can't map compare mode");
805 }
806 }
807
808 /*--------------------------------------------------------------------*//*!
809 * \brief Get GL cube face.
810 *
811 * If no mapping is found, throws tcu::InternalError.
812 *
813 * \param face Cube face
814 * \return GL cube face
815 *//*--------------------------------------------------------------------*/
getGLCubeFace(tcu::CubeFace face)816 deUint32 getGLCubeFace (tcu::CubeFace face)
817 {
818 DE_ASSERT(face != tcu::CUBEFACE_LAST);
819 switch (face)
820 {
821 case tcu::CUBEFACE_NEGATIVE_X: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
822 case tcu::CUBEFACE_POSITIVE_X: return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
823 case tcu::CUBEFACE_NEGATIVE_Y: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
824 case tcu::CUBEFACE_POSITIVE_Y: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
825 case tcu::CUBEFACE_NEGATIVE_Z: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
826 case tcu::CUBEFACE_POSITIVE_Z: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
827 default:
828 throw tcu::InternalError("Can't map cube face");
829 }
830 }
831
getCubeFaceFromGL(deUint32 face)832 tcu::CubeFace getCubeFaceFromGL (deUint32 face)
833 {
834 switch (face)
835 {
836 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: return tcu::CUBEFACE_NEGATIVE_X;
837 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: return tcu::CUBEFACE_POSITIVE_X;
838 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: return tcu::CUBEFACE_NEGATIVE_Y;
839 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: return tcu::CUBEFACE_POSITIVE_Y;
840 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return tcu::CUBEFACE_NEGATIVE_Z;
841 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: return tcu::CUBEFACE_POSITIVE_Z;
842 default:
843 throw tcu::InternalError("Can't map cube face");
844 }
845 }
846
847 /*--------------------------------------------------------------------*//*!
848 * \brief Get GLSL sampler type for texture format.
849 *
850 * If no mapping is found, glu::TYPE_LAST is returned.
851 *
852 * \param format Texture format
853 * \return GLSL 1D sampler type for format
854 *//*--------------------------------------------------------------------*/
getSampler1DType(tcu::TextureFormat format)855 DataType getSampler1DType (tcu::TextureFormat format)
856 {
857 using tcu::TextureFormat;
858
859 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
860 return TYPE_SAMPLER_1D;
861
862 if (format.order == TextureFormat::S)
863 return TYPE_LAST;
864
865 switch (tcu::getTextureChannelClass(format.type))
866 {
867 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
868 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
869 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
870 return glu::TYPE_SAMPLER_1D;
871
872 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
873 return glu::TYPE_INT_SAMPLER_1D;
874
875 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
876 return glu::TYPE_UINT_SAMPLER_1D;
877
878 default:
879 return glu::TYPE_LAST;
880 }
881 }
882
883 /*--------------------------------------------------------------------*//*!
884 * \brief Get GLSL sampler type for texture format.
885 *
886 * If no mapping is found, glu::TYPE_LAST is returned.
887 *
888 * \param format Texture format
889 * \return GLSL 2D sampler type for format
890 *//*--------------------------------------------------------------------*/
getSampler2DType(tcu::TextureFormat format)891 DataType getSampler2DType (tcu::TextureFormat format)
892 {
893 using tcu::TextureFormat;
894
895 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
896 return TYPE_SAMPLER_2D;
897
898 if (format.order == TextureFormat::S)
899 return TYPE_LAST;
900
901 switch (tcu::getTextureChannelClass(format.type))
902 {
903 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
904 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
905 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
906 return glu::TYPE_SAMPLER_2D;
907
908 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
909 return glu::TYPE_INT_SAMPLER_2D;
910
911 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
912 return glu::TYPE_UINT_SAMPLER_2D;
913
914 default:
915 return glu::TYPE_LAST;
916 }
917 }
918
919 /*--------------------------------------------------------------------*//*!
920 * \brief Get GLSL sampler type for texture format.
921 *
922 * If no mapping is found, glu::TYPE_LAST is returned.
923 *
924 * \param format Texture format
925 * \return GLSL cube map sampler type for format
926 *//*--------------------------------------------------------------------*/
getSamplerCubeType(tcu::TextureFormat format)927 DataType getSamplerCubeType (tcu::TextureFormat format)
928 {
929 using tcu::TextureFormat;
930
931 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
932 return TYPE_SAMPLER_CUBE;
933
934 if (format.order == TextureFormat::S)
935 return TYPE_LAST;
936
937 switch (tcu::getTextureChannelClass(format.type))
938 {
939 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
940 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
941 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
942 return glu::TYPE_SAMPLER_CUBE;
943
944 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
945 return glu::TYPE_INT_SAMPLER_CUBE;
946
947 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
948 return glu::TYPE_UINT_SAMPLER_CUBE;
949
950 default:
951 return glu::TYPE_LAST;
952 }
953 }
954
955 /*--------------------------------------------------------------------*//*!
956 * \brief Get GLSL sampler type for texture format.
957 *
958 * If no mapping is found, glu::TYPE_LAST is returned.
959 *
960 * \param format Texture format
961 * \return GLSL 2D array sampler type for format
962 *//*--------------------------------------------------------------------*/
getSampler2DArrayType(tcu::TextureFormat format)963 DataType getSampler2DArrayType (tcu::TextureFormat format)
964 {
965 using tcu::TextureFormat;
966
967 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
968 return TYPE_SAMPLER_2D_ARRAY;
969
970 if (format.order == TextureFormat::S)
971 return TYPE_LAST;
972
973 switch (tcu::getTextureChannelClass(format.type))
974 {
975 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
976 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
977 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
978 return glu::TYPE_SAMPLER_2D_ARRAY;
979
980 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
981 return glu::TYPE_INT_SAMPLER_2D_ARRAY;
982
983 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
984 return glu::TYPE_UINT_SAMPLER_2D_ARRAY;
985
986 default:
987 return glu::TYPE_LAST;
988 }
989 }
990
991 /*--------------------------------------------------------------------*//*!
992 * \brief Get GLSL sampler type for texture format.
993 *
994 * If no mapping is found, glu::TYPE_LAST is returned.
995 *
996 * \param format Texture format
997 * \return GLSL 3D sampler type for format
998 *//*--------------------------------------------------------------------*/
getSampler3DType(tcu::TextureFormat format)999 DataType getSampler3DType (tcu::TextureFormat format)
1000 {
1001 using tcu::TextureFormat;
1002
1003 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1004 return TYPE_SAMPLER_3D;
1005
1006 if (format.order == TextureFormat::S)
1007 return TYPE_LAST;
1008
1009 switch (tcu::getTextureChannelClass(format.type))
1010 {
1011 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1012 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1013 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1014 return glu::TYPE_SAMPLER_3D;
1015
1016 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1017 return glu::TYPE_INT_SAMPLER_3D;
1018
1019 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1020 return glu::TYPE_UINT_SAMPLER_3D;
1021
1022 default:
1023 return glu::TYPE_LAST;
1024 }
1025 }
1026
1027 /*--------------------------------------------------------------------*//*!
1028 * \brief Get GLSL sampler type for texture format.
1029 *
1030 * If no mapping is found, glu::TYPE_LAST is returned.
1031 *
1032 * \param format Texture format
1033 * \return GLSL cube map array sampler type for format
1034 *//*--------------------------------------------------------------------*/
getSamplerCubeArrayType(tcu::TextureFormat format)1035 DataType getSamplerCubeArrayType (tcu::TextureFormat format)
1036 {
1037 using tcu::TextureFormat;
1038
1039 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1040 return TYPE_SAMPLER_CUBE_ARRAY;
1041
1042 if (format.order == TextureFormat::S)
1043 return TYPE_LAST;
1044
1045 switch (tcu::getTextureChannelClass(format.type))
1046 {
1047 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1048 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1049 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1050 return glu::TYPE_SAMPLER_CUBE_ARRAY;
1051
1052 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1053 return glu::TYPE_INT_SAMPLER_CUBE_ARRAY;
1054
1055 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1056 return glu::TYPE_UINT_SAMPLER_CUBE_ARRAY;
1057
1058 default:
1059 return glu::TYPE_LAST;
1060 }
1061 }
1062
1063 enum RenderableType
1064 {
1065 RENDERABLE_COLOR = (1<<0),
1066 RENDERABLE_DEPTH = (1<<1),
1067 RENDERABLE_STENCIL = (1<<2)
1068 };
1069
getRenderableBitsES3(const ContextInfo & contextInfo,deUint32 internalFormat)1070 static deUint32 getRenderableBitsES3 (const ContextInfo& contextInfo, deUint32 internalFormat)
1071 {
1072 switch (internalFormat)
1073 {
1074 // Color-renderable formats
1075 case GL_RGBA32I:
1076 case GL_RGBA32UI:
1077 case GL_RGBA16I:
1078 case GL_RGBA16UI:
1079 case GL_RGBA8:
1080 case GL_RGBA8I:
1081 case GL_RGBA8UI:
1082 case GL_SRGB8_ALPHA8:
1083 case GL_RGB10_A2:
1084 case GL_RGB10_A2UI:
1085 case GL_RGBA4:
1086 case GL_RGB5_A1:
1087 case GL_RGB8:
1088 case GL_RGB565:
1089 case GL_RG32I:
1090 case GL_RG32UI:
1091 case GL_RG16I:
1092 case GL_RG16UI:
1093 case GL_RG8:
1094 case GL_RG8I:
1095 case GL_RG8UI:
1096 case GL_R32I:
1097 case GL_R32UI:
1098 case GL_R16I:
1099 case GL_R16UI:
1100 case GL_R8:
1101 case GL_R8I:
1102 case GL_R8UI:
1103 return RENDERABLE_COLOR;
1104
1105 // GL_EXT_color_buffer_float
1106 case GL_RGBA32F:
1107 case GL_R11F_G11F_B10F:
1108 case GL_RG32F:
1109 case GL_R32F:
1110 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float"))
1111 return RENDERABLE_COLOR;
1112 else
1113 return 0;
1114
1115 // GL_EXT_color_buffer_float / GL_EXT_color_buffer_half_float
1116 case GL_RGBA16F:
1117 case GL_RG16F:
1118 case GL_R16F:
1119 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float") ||
1120 contextInfo.isExtensionSupported("GL_EXT_color_buffer_half_float"))
1121 return RENDERABLE_COLOR;
1122 else
1123 return 0;
1124
1125 // Depth formats
1126 case GL_DEPTH_COMPONENT32F:
1127 case GL_DEPTH_COMPONENT24:
1128 case GL_DEPTH_COMPONENT16:
1129 return RENDERABLE_DEPTH;
1130
1131 // Depth+stencil formats
1132 case GL_DEPTH32F_STENCIL8:
1133 case GL_DEPTH24_STENCIL8:
1134 return RENDERABLE_DEPTH|RENDERABLE_STENCIL;
1135
1136 // Stencil formats
1137 case GL_STENCIL_INDEX8:
1138 return RENDERABLE_STENCIL;
1139
1140 default:
1141 return 0;
1142 }
1143 }
1144
1145 /*--------------------------------------------------------------------*//*!
1146 * \brief Check if sized internal format is color-renderable.
1147 * \note Works currently only on ES3 context.
1148 *//*--------------------------------------------------------------------*/
isSizedFormatColorRenderable(const RenderContext & renderCtx,const ContextInfo & contextInfo,deUint32 sizedFormat)1149 bool isSizedFormatColorRenderable (const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat)
1150 {
1151 deUint32 renderable = 0;
1152
1153 if (renderCtx.getType().getAPI() == ApiType::es(3,0))
1154 renderable = getRenderableBitsES3(contextInfo, sizedFormat);
1155 else
1156 throw tcu::InternalError("Context type not supported in query");
1157
1158 return (renderable & RENDERABLE_COLOR) != 0;
1159 }
1160
1161 const tcu::IVec2 (&getDefaultGatherOffsets (void))[4]
__anon19a9f9830102null1162 {
1163 static const tcu::IVec2 s_defaultOffsets[4] =
1164 {
1165 tcu::IVec2(0, 1),
1166 tcu::IVec2(1, 1),
1167 tcu::IVec2(1, 0),
1168 tcu::IVec2(0, 0),
1169 };
1170 return s_defaultOffsets;
1171 }
1172
1173 } // glu
1174