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 "gluTexture.hpp"
28 #include "tcuTextureUtil.hpp"
29 #include "tcuFormatUtil.hpp"
30 #include "glwEnums.hpp"
31
32 namespace glu
33 {
34
35 using std::string;
36
37 /*--------------------------------------------------------------------*//*!
38 * \brief Map tcu::TextureFormat to GL pixel transfer format.
39 *
40 * Maps generic texture format description to GL pixel transfer format.
41 * If no mapping is found, throws tcu::InternalError.
42 *
43 * \param texFormat Generic texture format.
44 * \return GL pixel transfer format.
45 *//*--------------------------------------------------------------------*/
getTransferFormat(tcu::TextureFormat texFormat)46 TransferFormat getTransferFormat (tcu::TextureFormat texFormat)
47 {
48 using tcu::TextureFormat;
49
50 deUint32 format = GL_NONE;
51 deUint32 type = GL_NONE;
52 bool isInt = false;
53
54 switch (texFormat.type)
55 {
56 case TextureFormat::SIGNED_INT8:
57 case TextureFormat::SIGNED_INT16:
58 case TextureFormat::SIGNED_INT32:
59 case TextureFormat::UNSIGNED_INT8:
60 case TextureFormat::UNSIGNED_INT16:
61 case TextureFormat::UNSIGNED_INT32:
62 case TextureFormat::UNSIGNED_INT_1010102_REV:
63 isInt = true;
64 break;
65
66 default:
67 isInt = false;
68 break;
69 }
70
71 switch (texFormat.order)
72 {
73 case TextureFormat::A: format = GL_ALPHA; break;
74 case TextureFormat::L: format = GL_LUMINANCE; break;
75 case TextureFormat::LA: format = GL_LUMINANCE_ALPHA; break;
76 case TextureFormat::R: format = isInt ? GL_RED_INTEGER : GL_RED; break;
77 case TextureFormat::RG: format = isInt ? GL_RG_INTEGER : GL_RG; break;
78 case TextureFormat::RGB: format = isInt ? GL_RGB_INTEGER : GL_RGB; break;
79 case TextureFormat::RGBA: format = isInt ? GL_RGBA_INTEGER : GL_RGBA; break;
80 case TextureFormat::sR: format = GL_RED; break;
81 case TextureFormat::sRG: format = GL_RG; break;
82 case TextureFormat::sRGB: format = GL_RGB; break;
83 case TextureFormat::sRGBA: format = GL_RGBA; break;
84 case TextureFormat::D: format = GL_DEPTH_COMPONENT; break;
85 case TextureFormat::DS: format = GL_DEPTH_STENCIL; break;
86 case TextureFormat::S: format = GL_STENCIL_INDEX; break;
87
88 case TextureFormat::BGRA:
89 DE_ASSERT(!isInt);
90 format = GL_BGRA;
91 break;
92
93 default:
94 DE_ASSERT(false);
95 }
96
97 switch (texFormat.type)
98 {
99 case TextureFormat::SNORM_INT8: type = GL_BYTE; break;
100 case TextureFormat::SNORM_INT16: type = GL_SHORT; break;
101 case TextureFormat::UNORM_INT8: type = GL_UNSIGNED_BYTE; break;
102 case TextureFormat::UNORM_INT16: type = GL_UNSIGNED_SHORT; break;
103 case TextureFormat::UNORM_SHORT_565: type = GL_UNSIGNED_SHORT_5_6_5; break;
104 case TextureFormat::UNORM_SHORT_4444: type = GL_UNSIGNED_SHORT_4_4_4_4; break;
105 case TextureFormat::UNORM_SHORT_5551: type = GL_UNSIGNED_SHORT_5_5_5_1; break;
106 case TextureFormat::SIGNED_INT8: type = GL_BYTE; break;
107 case TextureFormat::SIGNED_INT16: type = GL_SHORT; break;
108 case TextureFormat::SIGNED_INT32: type = GL_INT; break;
109 case TextureFormat::UNSIGNED_INT8: type = GL_UNSIGNED_BYTE; break;
110 case TextureFormat::UNSIGNED_INT16: type = GL_UNSIGNED_SHORT; break;
111 case TextureFormat::UNSIGNED_INT32: type = GL_UNSIGNED_INT; break;
112 case TextureFormat::FLOAT: type = GL_FLOAT; break;
113 case TextureFormat::UNORM_INT_101010: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
114 case TextureFormat::UNORM_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
115 case TextureFormat::UNSIGNED_INT_1010102_REV: type = GL_UNSIGNED_INT_2_10_10_10_REV; break;
116 case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: type = GL_UNSIGNED_INT_10F_11F_11F_REV; break;
117 case TextureFormat::UNSIGNED_INT_999_E5_REV: type = GL_UNSIGNED_INT_5_9_9_9_REV; break;
118 case TextureFormat::HALF_FLOAT: type = GL_HALF_FLOAT; break;
119 case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: type = GL_FLOAT_32_UNSIGNED_INT_24_8_REV; break;
120 case TextureFormat::UNSIGNED_INT_24_8: type = texFormat.order == TextureFormat::D
121 ? GL_UNSIGNED_INT
122 : GL_UNSIGNED_INT_24_8; break;
123
124 default:
125 throw tcu::InternalError("Can't map texture format to GL transfer format");
126 }
127
128 return TransferFormat(format, type);
129 }
130
131 /*--------------------------------------------------------------------*//*!
132 * \brief Map tcu::TextureFormat to GL internal sized format.
133 *
134 * Maps generic texture format description to GL internal format.
135 * If no mapping is found, throws tcu::InternalError.
136 *
137 * \param texFormat Generic texture format.
138 * \return GL sized internal format.
139 *//*--------------------------------------------------------------------*/
getInternalFormat(tcu::TextureFormat texFormat)140 deUint32 getInternalFormat (tcu::TextureFormat texFormat)
141 {
142 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELORDER_LAST < (1<<16));
143 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELTYPE_LAST < (1<<16));
144
145 #define PACK_FMT(ORDER, TYPE) ((int(ORDER) << 16) | int(TYPE))
146 #define FMT_CASE(ORDER, TYPE) PACK_FMT(tcu::TextureFormat::ORDER, tcu::TextureFormat::TYPE)
147
148 switch (PACK_FMT(texFormat.order, texFormat.type))
149 {
150 case FMT_CASE(RGBA, UNORM_SHORT_5551): return GL_RGB5_A1;
151 case FMT_CASE(RGBA, UNORM_SHORT_4444): return GL_RGBA4;
152 case FMT_CASE(RGB, UNORM_SHORT_565): return GL_RGB565;
153 case FMT_CASE(D, UNORM_INT16): return GL_DEPTH_COMPONENT16;
154 case FMT_CASE(S, UNSIGNED_INT8): return GL_STENCIL_INDEX8;
155
156 case FMT_CASE(RGBA, FLOAT): return GL_RGBA32F;
157 case FMT_CASE(RGBA, SIGNED_INT32): return GL_RGBA32I;
158 case FMT_CASE(RGBA, UNSIGNED_INT32): return GL_RGBA32UI;
159 case FMT_CASE(RGBA, UNORM_INT16): return GL_RGBA16;
160 case FMT_CASE(RGBA, SNORM_INT16): return GL_RGBA16_SNORM;
161 case FMT_CASE(RGBA, HALF_FLOAT): return GL_RGBA16F;
162 case FMT_CASE(RGBA, SIGNED_INT16): return GL_RGBA16I;
163 case FMT_CASE(RGBA, UNSIGNED_INT16): return GL_RGBA16UI;
164 case FMT_CASE(RGBA, UNORM_INT8): return GL_RGBA8;
165 case FMT_CASE(RGBA, SIGNED_INT8): return GL_RGBA8I;
166 case FMT_CASE(RGBA, UNSIGNED_INT8): return GL_RGBA8UI;
167 case FMT_CASE(sRGBA, UNORM_INT8): return GL_SRGB8_ALPHA8;
168 case FMT_CASE(RGBA, UNORM_INT_1010102_REV): return GL_RGB10_A2;
169 case FMT_CASE(RGBA, UNSIGNED_INT_1010102_REV): return GL_RGB10_A2UI;
170 case FMT_CASE(RGBA, SNORM_INT8): return GL_RGBA8_SNORM;
171
172 case FMT_CASE(RGB, UNORM_INT8): return GL_RGB8;
173 case FMT_CASE(RGB, UNSIGNED_INT_11F_11F_10F_REV): return GL_R11F_G11F_B10F;
174 case FMT_CASE(RGB, FLOAT): return GL_RGB32F;
175 case FMT_CASE(RGB, SIGNED_INT32): return GL_RGB32I;
176 case FMT_CASE(RGB, UNSIGNED_INT32): return GL_RGB32UI;
177 case FMT_CASE(RGB, UNORM_INT16): return GL_RGB16;
178 case FMT_CASE(RGB, SNORM_INT16): return GL_RGB16_SNORM;
179 case FMT_CASE(RGB, HALF_FLOAT): return GL_RGB16F;
180 case FMT_CASE(RGB, SIGNED_INT16): return GL_RGB16I;
181 case FMT_CASE(RGB, UNSIGNED_INT16): return GL_RGB16UI;
182 case FMT_CASE(RGB, SNORM_INT8): return GL_RGB8_SNORM;
183 case FMT_CASE(RGB, SIGNED_INT8): return GL_RGB8I;
184 case FMT_CASE(RGB, UNSIGNED_INT8): return GL_RGB8UI;
185 case FMT_CASE(sRGB, UNORM_INT8): return GL_SRGB8;
186 case FMT_CASE(RGB, UNSIGNED_INT_999_E5_REV): return GL_RGB9_E5;
187 case FMT_CASE(RGB, UNORM_INT_1010102_REV): return GL_RGB10;
188
189 case FMT_CASE(RG, FLOAT): return GL_RG32F;
190 case FMT_CASE(RG, SIGNED_INT32): return GL_RG32I;
191 case FMT_CASE(RG, UNSIGNED_INT32): return GL_RG32UI;
192 case FMT_CASE(RG, UNORM_INT16): return GL_RG16;
193 case FMT_CASE(RG, SNORM_INT16): return GL_RG16_SNORM;
194 case FMT_CASE(RG, HALF_FLOAT): return GL_RG16F;
195 case FMT_CASE(RG, SIGNED_INT16): return GL_RG16I;
196 case FMT_CASE(RG, UNSIGNED_INT16): return GL_RG16UI;
197 case FMT_CASE(RG, UNORM_INT8): return GL_RG8;
198 case FMT_CASE(RG, SIGNED_INT8): return GL_RG8I;
199 case FMT_CASE(RG, UNSIGNED_INT8): return GL_RG8UI;
200 case FMT_CASE(RG, SNORM_INT8): return GL_RG8_SNORM;
201 case FMT_CASE(sRG, UNORM_INT8): return GL_SRG8_EXT;
202
203 case FMT_CASE(R, FLOAT): return GL_R32F;
204 case FMT_CASE(R, SIGNED_INT32): return GL_R32I;
205 case FMT_CASE(R, UNSIGNED_INT32): return GL_R32UI;
206 case FMT_CASE(R, UNORM_INT16): return GL_R16;
207 case FMT_CASE(R, SNORM_INT16): return GL_R16_SNORM;
208 case FMT_CASE(R, HALF_FLOAT): return GL_R16F;
209 case FMT_CASE(R, SIGNED_INT16): return GL_R16I;
210 case FMT_CASE(R, UNSIGNED_INT16): return GL_R16UI;
211 case FMT_CASE(R, UNORM_INT8): return GL_R8;
212 case FMT_CASE(R, SIGNED_INT8): return GL_R8I;
213 case FMT_CASE(R, UNSIGNED_INT8): return GL_R8UI;
214 case FMT_CASE(R, SNORM_INT8): return GL_R8_SNORM;
215 case FMT_CASE(sR, UNORM_INT8): return GL_SR8_EXT;
216
217 case FMT_CASE(D, FLOAT): return GL_DEPTH_COMPONENT32F;
218 case FMT_CASE(D, UNSIGNED_INT_24_8): return GL_DEPTH_COMPONENT24;
219 case FMT_CASE(D, UNSIGNED_INT32): return GL_DEPTH_COMPONENT32;
220 case FMT_CASE(DS, FLOAT_UNSIGNED_INT_24_8_REV): return GL_DEPTH32F_STENCIL8;
221 case FMT_CASE(DS, UNSIGNED_INT_24_8): return GL_DEPTH24_STENCIL8;
222
223 default:
224 throw tcu::InternalError("Can't map texture format to GL internal format");
225 }
226 }
227
228 /*--------------------------------------------------------------------*//*!
229 * \brief Map generic compressed format to GL compressed format enum.
230 *
231 * Maps generic compressed format to GL compressed format enum value.
232 * If no mapping is found, throws tcu::InternalError.
233 *
234 * \param format Generic compressed format.
235 * \return GL compressed texture format.
236 *//*--------------------------------------------------------------------*/
getGLFormat(tcu::CompressedTexFormat format)237 deUint32 getGLFormat (tcu::CompressedTexFormat format)
238 {
239 switch (format)
240 {
241 case tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8: return GL_ETC1_RGB8_OES;
242 case tcu::COMPRESSEDTEXFORMAT_EAC_R11: return GL_COMPRESSED_R11_EAC;
243 case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11: return GL_COMPRESSED_SIGNED_R11_EAC;
244 case tcu::COMPRESSEDTEXFORMAT_EAC_RG11: return GL_COMPRESSED_RG11_EAC;
245 case tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11: return GL_COMPRESSED_SIGNED_RG11_EAC;
246 case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8: return GL_COMPRESSED_RGB8_ETC2;
247 case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8: return GL_COMPRESSED_SRGB8_ETC2;
248 case tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2;
249 case tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2;
250 case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8: return GL_COMPRESSED_RGBA8_ETC2_EAC;
251 case tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC;
252
253 case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_4x4_KHR;
254 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x4_KHR;
255 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_5x5_KHR;
256 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x5_KHR;
257 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_6x6_KHR;
258 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x5_KHR;
259 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x6_KHR;
260 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_8x8_KHR;
261 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x5_KHR;
262 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x6_KHR;
263 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x8_KHR;
264 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_10x10_KHR;
265 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x10_KHR;
266 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA: return GL_COMPRESSED_RGBA_ASTC_12x12_KHR;
267 case tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR;
268 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR;
269 case tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR;
270 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR;
271 case tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR;
272 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR;
273 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR;
274 case tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR;
275 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR;
276 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR;
277 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR;
278 case tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR;
279 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR;
280 case tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8: return GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR;
281
282 default:
283 throw tcu::InternalError("Can't map compressed format to GL format");
284 }
285 }
286
287 /*--------------------------------------------------------------------*//*!
288 * \brief Map compressed GL format to generic compressed format.
289 *
290 * Maps compressed GL format to generic compressed format.
291 * If no mapping is found, throws tcu::InternalError.
292 *
293 * \param GL compressed texture format.
294 * \return format Generic compressed format.
295 *//*--------------------------------------------------------------------*/
mapGLCompressedTexFormat(deUint32 format)296 tcu::CompressedTexFormat mapGLCompressedTexFormat (deUint32 format)
297 {
298 switch (format)
299 {
300 case GL_ETC1_RGB8_OES: return tcu::COMPRESSEDTEXFORMAT_ETC1_RGB8;
301 case GL_COMPRESSED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_R11;
302 case GL_COMPRESSED_SIGNED_R11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11;
303 case GL_COMPRESSED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_RG11;
304 case GL_COMPRESSED_SIGNED_RG11_EAC: return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11;
305 case GL_COMPRESSED_RGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8;
306 case GL_COMPRESSED_SRGB8_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8;
307 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
308 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
309 case GL_COMPRESSED_RGBA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8;
310 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8;
311
312 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA;
313 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA;
314 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA;
315 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA;
316 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA;
317 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA;
318 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA;
319 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA;
320 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA;
321 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA;
322 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA;
323 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA;
324 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA;
325 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA;
326 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8;
327 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_SRGB8_ALPHA8;
328 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8;
329 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8;
330 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8;
331 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_SRGB8_ALPHA8;
332 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8;
333 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8;
334 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8;
335 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8;
336 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8;
337 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8;
338 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8;
339 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8;
340
341 default:
342 throw tcu::InternalError("Can't map compressed GL format to compressed format");
343 }
344 }
345
isCompressedFormat(deUint32 internalFormat)346 bool isCompressedFormat (deUint32 internalFormat)
347 {
348 switch (internalFormat)
349 {
350 case GL_ETC1_RGB8_OES:
351 case GL_COMPRESSED_R11_EAC:
352 case GL_COMPRESSED_SIGNED_R11_EAC:
353 case GL_COMPRESSED_RG11_EAC:
354 case GL_COMPRESSED_SIGNED_RG11_EAC:
355 case GL_COMPRESSED_RGB8_ETC2:
356 case GL_COMPRESSED_SRGB8_ETC2:
357 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
358 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
359 case GL_COMPRESSED_RGBA8_ETC2_EAC:
360 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
361 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
362 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
363 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
364 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
365 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
366 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
367 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
368 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
369 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
370 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
371 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
372 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
373 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
374 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
375 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
376 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
377 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
378 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
379 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
380 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
381 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
382 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
383 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
384 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
385 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
386 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
387 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
388 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
389 return true;
390
391 default:
392 return false;
393 }
394 }
395
mapGLChannelType(deUint32 dataType,bool normalized)396 static tcu::TextureFormat::ChannelType mapGLChannelType (deUint32 dataType, bool normalized)
397 {
398 // \note Normalized bit is ignored where it doesn't apply.
399 using tcu::TextureFormat;
400
401 switch (dataType)
402 {
403 case GL_UNSIGNED_BYTE: return normalized ? TextureFormat::UNORM_INT8 : TextureFormat::UNSIGNED_INT8;
404 case GL_BYTE: return normalized ? TextureFormat::SNORM_INT8 : TextureFormat::SIGNED_INT8;
405 case GL_UNSIGNED_SHORT: return normalized ? TextureFormat::UNORM_INT16 : TextureFormat::UNSIGNED_INT16;
406 case GL_SHORT: return normalized ? TextureFormat::SNORM_INT16 : TextureFormat::SIGNED_INT16;
407 case GL_UNSIGNED_INT: return normalized ? TextureFormat::UNORM_INT32 : TextureFormat::UNSIGNED_INT32;
408 case GL_INT: return normalized ? TextureFormat::SNORM_INT32 : TextureFormat::SIGNED_INT32;
409 case GL_FLOAT: return TextureFormat::FLOAT;
410 case GL_UNSIGNED_SHORT_4_4_4_4: return TextureFormat::UNORM_SHORT_4444;
411 case GL_UNSIGNED_SHORT_5_5_5_1: return TextureFormat::UNORM_SHORT_5551;
412 case GL_UNSIGNED_SHORT_5_6_5: return TextureFormat::UNORM_SHORT_565;
413 case GL_HALF_FLOAT: return TextureFormat::HALF_FLOAT;
414 case GL_UNSIGNED_INT_2_10_10_10_REV: return normalized ? TextureFormat::UNORM_INT_1010102_REV : TextureFormat::UNSIGNED_INT_1010102_REV;
415 case GL_UNSIGNED_INT_10F_11F_11F_REV: return TextureFormat::UNSIGNED_INT_11F_11F_10F_REV;
416 case GL_UNSIGNED_INT_24_8: return TextureFormat::UNSIGNED_INT_24_8;
417 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV;
418 case GL_UNSIGNED_INT_5_9_9_9_REV: return TextureFormat::UNSIGNED_INT_999_E5_REV;
419
420 default:
421 DE_ASSERT(false);
422 return TextureFormat::CHANNELTYPE_LAST;
423 }
424 }
425
426 /*--------------------------------------------------------------------*//*!
427 * \brief Map GL pixel transfer format to tcu::TextureFormat.
428 *
429 * If no mapping is found, throws tcu::InternalError.
430 *
431 * \param format GL pixel format.
432 * \param dataType GL data type.
433 * \return Generic texture format.
434 *//*--------------------------------------------------------------------*/
mapGLTransferFormat(deUint32 format,deUint32 dataType)435 tcu::TextureFormat mapGLTransferFormat (deUint32 format, deUint32 dataType)
436 {
437 using tcu::TextureFormat;
438 switch (format)
439 {
440 case GL_ALPHA: return TextureFormat(TextureFormat::A, mapGLChannelType(dataType, true));
441 case GL_LUMINANCE: return TextureFormat(TextureFormat::L, mapGLChannelType(dataType, true));
442 case GL_LUMINANCE_ALPHA: return TextureFormat(TextureFormat::LA, mapGLChannelType(dataType, true));
443 case GL_RGB: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, true));
444 case GL_RGBA: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, true));
445 case GL_BGRA: return TextureFormat(TextureFormat::BGRA, mapGLChannelType(dataType, true));
446 case GL_RG: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, true));
447 case GL_RED: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, true));
448 case GL_RGBA_INTEGER: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, false));
449 case GL_RGB_INTEGER: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, false));
450 case GL_RG_INTEGER: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, false));
451 case GL_RED_INTEGER: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, false));
452
453 case GL_DEPTH_COMPONENT: return TextureFormat(TextureFormat::D, mapGLChannelType(dataType, true));
454 case GL_DEPTH_STENCIL: return TextureFormat(TextureFormat::DS, mapGLChannelType(dataType, true));
455
456 default:
457 throw tcu::InternalError(string("Can't map GL pixel format (") + tcu::toHex(format).toString() + ", " + tcu::toHex(dataType).toString() + ") to texture format");
458 }
459 }
460
461 /*--------------------------------------------------------------------*//*!
462 * \brief Map GL internal texture format to tcu::TextureFormat.
463 *
464 * If no mapping is found, throws tcu::InternalError.
465 *
466 * \param internalFormat Sized internal format.
467 * \return Generic texture format.
468 *//*--------------------------------------------------------------------*/
mapGLInternalFormat(deUint32 internalFormat)469 tcu::TextureFormat mapGLInternalFormat (deUint32 internalFormat)
470 {
471 using tcu::TextureFormat;
472 switch (internalFormat)
473 {
474 case GL_RGB5_A1: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551);
475 case GL_RGBA4: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_4444);
476 case GL_RGB565: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_SHORT_565);
477 case GL_DEPTH_COMPONENT16: return TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT16);
478 case GL_STENCIL_INDEX8: return TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8);
479
480 case GL_RGBA32F: return TextureFormat(TextureFormat::RGBA, TextureFormat::FLOAT);
481 case GL_RGBA32I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT32);
482 case GL_RGBA32UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT32);
483 case GL_RGBA16: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT16);
484 case GL_RGBA16_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT16);
485 case GL_RGBA16F: return TextureFormat(TextureFormat::RGBA, TextureFormat::HALF_FLOAT);
486 case GL_RGBA16I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT16);
487 case GL_RGBA16UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT16);
488 case GL_RGBA8: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8);
489 case GL_RGBA8I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT8);
490 case GL_RGBA8UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT8);
491 case GL_SRGB8_ALPHA8: return TextureFormat(TextureFormat::sRGBA, TextureFormat::UNORM_INT8);
492 case GL_RGB10_A2: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT_1010102_REV);
493 case GL_RGB10_A2UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV);
494 case GL_RGBA8_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT8);
495
496 case GL_RGB8: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT8);
497 case GL_R11F_G11F_B10F: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_11F_11F_10F_REV);
498 case GL_RGB32F: return TextureFormat(TextureFormat::RGB, TextureFormat::FLOAT);
499 case GL_RGB32I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT32);
500 case GL_RGB32UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT32);
501 case GL_RGB16: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT16);
502 case GL_RGB16_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT16);
503 case GL_RGB16F: return TextureFormat(TextureFormat::RGB, TextureFormat::HALF_FLOAT);
504 case GL_RGB16I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT16);
505 case GL_RGB16UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT16);
506 case GL_RGB8_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT8);
507 case GL_RGB8I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT8);
508 case GL_RGB8UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT8);
509 case GL_SRGB8: return TextureFormat(TextureFormat::sRGB, TextureFormat::UNORM_INT8);
510 case GL_RGB9_E5: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_999_E5_REV);
511 case GL_RGB10: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT_1010102_REV);
512
513 case GL_RG32F: return TextureFormat(TextureFormat::RG, TextureFormat::FLOAT);
514 case GL_RG32I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT32);
515 case GL_RG32UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT32);
516 case GL_RG16: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT16);
517 case GL_RG16_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT16);
518 case GL_RG16F: return TextureFormat(TextureFormat::RG, TextureFormat::HALF_FLOAT);
519 case GL_RG16I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT16);
520 case GL_RG16UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT16);
521 case GL_RG8: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT8);
522 case GL_RG8I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT8);
523 case GL_RG8UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT8);
524 case GL_RG8_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT8);
525 case GL_SRG8_EXT: return TextureFormat(TextureFormat::sRG, TextureFormat::UNORM_INT8);
526
527 case GL_R32F: return TextureFormat(TextureFormat::R, TextureFormat::FLOAT);
528 case GL_R32I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT32);
529 case GL_R32UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT32);
530 case GL_R16: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT16);
531 case GL_R16_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT16);
532 case GL_R16F: return TextureFormat(TextureFormat::R, TextureFormat::HALF_FLOAT);
533 case GL_R16I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT16);
534 case GL_R16UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT16);
535 case GL_R8: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT8);
536 case GL_R8I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT8);
537 case GL_R8UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT8);
538 case GL_R8_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT8);
539 case GL_SR8_EXT: return TextureFormat(TextureFormat::sR, TextureFormat::UNORM_INT8);
540
541 case GL_DEPTH_COMPONENT32F: return TextureFormat(TextureFormat::D, TextureFormat::FLOAT);
542 case GL_DEPTH_COMPONENT24: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT_24_8);
543 case GL_DEPTH_COMPONENT32: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT32);
544 case GL_DEPTH32F_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV);
545 case GL_DEPTH24_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::UNSIGNED_INT_24_8);
546
547 default:
548 throw tcu::InternalError(string("Can't map GL sized internal format (") + tcu::toHex(internalFormat).toString() + ") to texture format");
549 }
550 }
551
isGLInternalColorFormatFilterable(deUint32 format)552 bool isGLInternalColorFormatFilterable (deUint32 format)
553 {
554 switch (format)
555 {
556 case GL_R8:
557 case GL_R8_SNORM:
558 case GL_RG8:
559 case GL_RG8_SNORM:
560 case GL_RGB8:
561 case GL_RGB8_SNORM:
562 case GL_RGB565:
563 case GL_RGBA4:
564 case GL_RGB5_A1:
565 case GL_RGBA8:
566 case GL_RGBA8_SNORM:
567 case GL_RGB10_A2:
568 case GL_SR8_EXT:
569 case GL_SRG8_EXT:
570 case GL_SRGB8:
571 case GL_SRGB8_ALPHA8:
572 case GL_R16F:
573 case GL_RG16F:
574 case GL_RGB16F:
575 case GL_RGBA16F:
576 case GL_R11F_G11F_B10F:
577 case GL_RGB9_E5:
578 return true;
579
580 case GL_RGB10_A2UI:
581 case GL_R32F:
582 case GL_RG32F:
583 case GL_RGB32F:
584 case GL_RGBA32F:
585 case GL_R8I:
586 case GL_R8UI:
587 case GL_R16I:
588 case GL_R16UI:
589 case GL_R32I:
590 case GL_R32UI:
591 case GL_RG8I:
592 case GL_RG8UI:
593 case GL_RG16I:
594 case GL_RG16UI:
595 case GL_RG32I:
596 case GL_RG32UI:
597 case GL_RGB8I:
598 case GL_RGB8UI:
599 case GL_RGB16I:
600 case GL_RGB16UI:
601 case GL_RGB32I:
602 case GL_RGB32UI:
603 case GL_RGBA8I:
604 case GL_RGBA8UI:
605 case GL_RGBA16I:
606 case GL_RGBA16UI:
607 case GL_RGBA32I:
608 case GL_RGBA32UI:
609 return false;
610
611 default:
612 DE_ASSERT(false);
613 return false;
614 }
615 }
616
mapGLWrapMode(deUint32 wrapMode)617 static inline tcu::Sampler::WrapMode mapGLWrapMode (deUint32 wrapMode)
618 {
619 switch (wrapMode)
620 {
621 case GL_CLAMP_TO_EDGE: return tcu::Sampler::CLAMP_TO_EDGE;
622 case GL_CLAMP_TO_BORDER: return tcu::Sampler::CLAMP_TO_BORDER;
623 case GL_REPEAT: return tcu::Sampler::REPEAT_GL;
624 case GL_MIRRORED_REPEAT: return tcu::Sampler::MIRRORED_REPEAT_GL;
625 default:
626 throw tcu::InternalError("Can't map GL wrap mode " + tcu::toHex(wrapMode).toString());
627 }
628 }
629
mapGLMinFilterMode(deUint32 filterMode)630 static inline tcu::Sampler::FilterMode mapGLMinFilterMode (deUint32 filterMode)
631 {
632 switch (filterMode)
633 {
634 case GL_NEAREST: return tcu::Sampler::NEAREST;
635 case GL_LINEAR: return tcu::Sampler::LINEAR;
636 case GL_NEAREST_MIPMAP_NEAREST: return tcu::Sampler::NEAREST_MIPMAP_NEAREST;
637 case GL_NEAREST_MIPMAP_LINEAR: return tcu::Sampler::NEAREST_MIPMAP_LINEAR;
638 case GL_LINEAR_MIPMAP_NEAREST: return tcu::Sampler::LINEAR_MIPMAP_NEAREST;
639 case GL_LINEAR_MIPMAP_LINEAR: return tcu::Sampler::LINEAR_MIPMAP_LINEAR;
640 default:
641 throw tcu::InternalError("Can't map GL min filter mode" + tcu::toHex(filterMode).toString());
642 }
643 }
644
mapGLMagFilterMode(deUint32 filterMode)645 static inline tcu::Sampler::FilterMode mapGLMagFilterMode (deUint32 filterMode)
646 {
647 switch (filterMode)
648 {
649 case GL_NEAREST: return tcu::Sampler::NEAREST;
650 case GL_LINEAR: return tcu::Sampler::LINEAR;
651 default:
652 throw tcu::InternalError("Can't map GL mag filter mode" + tcu::toHex(filterMode).toString());
653 }
654 }
655
656 /*--------------------------------------------------------------------*//*!
657 * \brief Map GL sampler parameters to tcu::Sampler.
658 *
659 * If no mapping is found, throws tcu::InternalError.
660 *
661 * \param wrapS S-component wrap mode
662 * \param minFilter Minification filter mode
663 * \param magFilter Magnification filter mode
664 * \return Sampler description.
665 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 minFilter,deUint32 magFilter)666 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 minFilter, deUint32 magFilter)
667 {
668 return mapGLSampler(wrapS, wrapS, wrapS, minFilter, magFilter);
669 }
670
671
672 /*--------------------------------------------------------------------*//*!
673 * \brief Map GL sampler parameters to tcu::Sampler.
674 *
675 * If no mapping is found, throws tcu::InternalError.
676 *
677 * \param wrapS S-component wrap mode
678 * \param wrapT T-component wrap mode
679 * \param minFilter Minification filter mode
680 * \param magFilter Magnification filter mode
681 * \return Sampler description.
682 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 wrapT,deUint32 minFilter,deUint32 magFilter)683 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter)
684 {
685 return mapGLSampler(wrapS, wrapT, wrapS, minFilter, magFilter);
686 }
687
688 /*--------------------------------------------------------------------*//*!
689 * \brief Map GL sampler parameters to tcu::Sampler.
690 *
691 * If no mapping is found, throws tcu::InternalError.
692 *
693 * \param wrapS S-component wrap mode
694 * \param wrapT T-component wrap mode
695 * \param wrapR R-component wrap mode
696 * \param minFilter Minification filter mode
697 * \param magFilter Magnification filter mode
698 * \return Sampler description.
699 *//*--------------------------------------------------------------------*/
mapGLSampler(deUint32 wrapS,deUint32 wrapT,deUint32 wrapR,deUint32 minFilter,deUint32 magFilter)700 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter)
701 {
702 return tcu::Sampler(mapGLWrapMode(wrapS), mapGLWrapMode(wrapT), mapGLWrapMode(wrapR),
703 mapGLMinFilterMode(minFilter), mapGLMagFilterMode(magFilter),
704 0.0f /* lod threshold */,
705 true /* normalized coords */,
706 tcu::Sampler::COMPAREMODE_NONE /* no compare */,
707 0 /* compare channel */,
708 tcu::Vec4(0.0f) /* border color, not used */);
709 }
710
711 /*--------------------------------------------------------------------*//*!
712 * \brief Map GL compare function to tcu::Sampler::CompareMode.
713 *
714 * If no mapping is found, throws tcu::InternalError.
715 *
716 * \param mode GL compare mode
717 * \return Compare mode
718 *//*--------------------------------------------------------------------*/
mapGLCompareFunc(deUint32 mode)719 tcu::Sampler::CompareMode mapGLCompareFunc (deUint32 mode)
720 {
721 switch (mode)
722 {
723 case GL_LESS: return tcu::Sampler::COMPAREMODE_LESS;
724 case GL_LEQUAL: return tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL;
725 case GL_GREATER: return tcu::Sampler::COMPAREMODE_GREATER;
726 case GL_GEQUAL: return tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL;
727 case GL_EQUAL: return tcu::Sampler::COMPAREMODE_EQUAL;
728 case GL_NOTEQUAL: return tcu::Sampler::COMPAREMODE_NOT_EQUAL;
729 case GL_ALWAYS: return tcu::Sampler::COMPAREMODE_ALWAYS;
730 case GL_NEVER: return tcu::Sampler::COMPAREMODE_NEVER;
731 default:
732 throw tcu::InternalError("Can't map GL compare mode " + tcu::toHex(mode).toString());
733 }
734 }
735
736 /*--------------------------------------------------------------------*//*!
737 * \brief Get GL wrap mode.
738 *
739 * If no mapping is found, throws tcu::InternalError.
740 *
741 * \param wrapMode Wrap mode
742 * \return GL wrap mode
743 *//*--------------------------------------------------------------------*/
getGLWrapMode(tcu::Sampler::WrapMode wrapMode)744 deUint32 getGLWrapMode (tcu::Sampler::WrapMode wrapMode)
745 {
746 DE_ASSERT(wrapMode != tcu::Sampler::WRAPMODE_LAST);
747 switch (wrapMode)
748 {
749 case tcu::Sampler::CLAMP_TO_EDGE: return GL_CLAMP_TO_EDGE;
750 case tcu::Sampler::CLAMP_TO_BORDER: return GL_CLAMP_TO_BORDER;
751 case tcu::Sampler::REPEAT_GL: return GL_REPEAT;
752 case tcu::Sampler::MIRRORED_REPEAT_GL: return GL_MIRRORED_REPEAT;
753 default:
754 throw tcu::InternalError("Can't map wrap mode");
755 }
756 }
757
758 /*--------------------------------------------------------------------*//*!
759 * \brief Get GL filter mode.
760 *
761 * If no mapping is found, throws tcu::InternalError.
762 *
763 * \param filterMode Filter mode
764 * \return GL filter mode
765 *//*--------------------------------------------------------------------*/
getGLFilterMode(tcu::Sampler::FilterMode filterMode)766 deUint32 getGLFilterMode (tcu::Sampler::FilterMode filterMode)
767 {
768 DE_ASSERT(filterMode != tcu::Sampler::FILTERMODE_LAST);
769 switch (filterMode)
770 {
771 case tcu::Sampler::NEAREST: return GL_NEAREST;
772 case tcu::Sampler::LINEAR: return GL_LINEAR;
773 case tcu::Sampler::NEAREST_MIPMAP_NEAREST: return GL_NEAREST_MIPMAP_NEAREST;
774 case tcu::Sampler::NEAREST_MIPMAP_LINEAR: return GL_NEAREST_MIPMAP_LINEAR;
775 case tcu::Sampler::LINEAR_MIPMAP_NEAREST: return GL_LINEAR_MIPMAP_NEAREST;
776 case tcu::Sampler::LINEAR_MIPMAP_LINEAR: return GL_LINEAR_MIPMAP_LINEAR;
777 default:
778 throw tcu::InternalError("Can't map filter mode");
779 }
780 }
781
782 /*--------------------------------------------------------------------*//*!
783 * \brief Get GL compare mode.
784 *
785 * If no mapping is found, throws tcu::InternalError.
786 *
787 * \param compareMode Compare mode
788 * \return GL compare mode
789 *//*--------------------------------------------------------------------*/
getGLCompareFunc(tcu::Sampler::CompareMode compareMode)790 deUint32 getGLCompareFunc (tcu::Sampler::CompareMode compareMode)
791 {
792 DE_ASSERT(compareMode != tcu::Sampler::COMPAREMODE_NONE);
793 switch (compareMode)
794 {
795 case tcu::Sampler::COMPAREMODE_NONE: return GL_NONE;
796 case tcu::Sampler::COMPAREMODE_LESS: return GL_LESS;
797 case tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL: return GL_LEQUAL;
798 case tcu::Sampler::COMPAREMODE_GREATER: return GL_GREATER;
799 case tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL: return GL_GEQUAL;
800 case tcu::Sampler::COMPAREMODE_EQUAL: return GL_EQUAL;
801 case tcu::Sampler::COMPAREMODE_NOT_EQUAL: return GL_NOTEQUAL;
802 case tcu::Sampler::COMPAREMODE_ALWAYS: return GL_ALWAYS;
803 case tcu::Sampler::COMPAREMODE_NEVER: return GL_NEVER;
804 default:
805 throw tcu::InternalError("Can't map compare mode");
806 }
807 }
808
809 /*--------------------------------------------------------------------*//*!
810 * \brief Get GL cube face.
811 *
812 * If no mapping is found, throws tcu::InternalError.
813 *
814 * \param face Cube face
815 * \return GL cube face
816 *//*--------------------------------------------------------------------*/
getGLCubeFace(tcu::CubeFace face)817 deUint32 getGLCubeFace (tcu::CubeFace face)
818 {
819 DE_ASSERT(face != tcu::CUBEFACE_LAST);
820 switch (face)
821 {
822 case tcu::CUBEFACE_NEGATIVE_X: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
823 case tcu::CUBEFACE_POSITIVE_X: return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
824 case tcu::CUBEFACE_NEGATIVE_Y: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
825 case tcu::CUBEFACE_POSITIVE_Y: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
826 case tcu::CUBEFACE_NEGATIVE_Z: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
827 case tcu::CUBEFACE_POSITIVE_Z: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
828 default:
829 throw tcu::InternalError("Can't map cube face");
830 }
831 }
832
getCubeFaceFromGL(deUint32 face)833 tcu::CubeFace getCubeFaceFromGL (deUint32 face)
834 {
835 switch (face)
836 {
837 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: return tcu::CUBEFACE_NEGATIVE_X;
838 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: return tcu::CUBEFACE_POSITIVE_X;
839 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: return tcu::CUBEFACE_NEGATIVE_Y;
840 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: return tcu::CUBEFACE_POSITIVE_Y;
841 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return tcu::CUBEFACE_NEGATIVE_Z;
842 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: return tcu::CUBEFACE_POSITIVE_Z;
843 default:
844 throw tcu::InternalError("Can't map cube face");
845 }
846 }
847
848 /*--------------------------------------------------------------------*//*!
849 * \brief Get GLSL sampler type for texture format.
850 *
851 * If no mapping is found, glu::TYPE_LAST is returned.
852 *
853 * \param format Texture format
854 * \return GLSL 1D sampler type for format
855 *//*--------------------------------------------------------------------*/
getSampler1DType(tcu::TextureFormat format)856 DataType getSampler1DType (tcu::TextureFormat format)
857 {
858 using tcu::TextureFormat;
859
860 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
861 return TYPE_SAMPLER_1D;
862
863 if (format.order == TextureFormat::S)
864 return TYPE_LAST;
865
866 switch (tcu::getTextureChannelClass(format.type))
867 {
868 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
869 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
870 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
871 return glu::TYPE_SAMPLER_1D;
872
873 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
874 return glu::TYPE_INT_SAMPLER_1D;
875
876 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
877 return glu::TYPE_UINT_SAMPLER_1D;
878
879 default:
880 return glu::TYPE_LAST;
881 }
882 }
883
884 /*--------------------------------------------------------------------*//*!
885 * \brief Get GLSL sampler type for texture format.
886 *
887 * If no mapping is found, glu::TYPE_LAST is returned.
888 *
889 * \param format Texture format
890 * \return GLSL 2D sampler type for format
891 *//*--------------------------------------------------------------------*/
getSampler2DType(tcu::TextureFormat format)892 DataType getSampler2DType (tcu::TextureFormat format)
893 {
894 using tcu::TextureFormat;
895
896 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
897 return TYPE_SAMPLER_2D;
898
899 if (format.order == TextureFormat::S)
900 return TYPE_LAST;
901
902 switch (tcu::getTextureChannelClass(format.type))
903 {
904 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
905 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
906 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
907 return glu::TYPE_SAMPLER_2D;
908
909 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
910 return glu::TYPE_INT_SAMPLER_2D;
911
912 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
913 return glu::TYPE_UINT_SAMPLER_2D;
914
915 default:
916 return glu::TYPE_LAST;
917 }
918 }
919
920 /*--------------------------------------------------------------------*//*!
921 * \brief Get GLSL sampler type for texture format.
922 *
923 * If no mapping is found, glu::TYPE_LAST is returned.
924 *
925 * \param format Texture format
926 * \return GLSL cube map sampler type for format
927 *//*--------------------------------------------------------------------*/
getSamplerCubeType(tcu::TextureFormat format)928 DataType getSamplerCubeType (tcu::TextureFormat format)
929 {
930 using tcu::TextureFormat;
931
932 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
933 return TYPE_SAMPLER_CUBE;
934
935 if (format.order == TextureFormat::S)
936 return TYPE_LAST;
937
938 switch (tcu::getTextureChannelClass(format.type))
939 {
940 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
941 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
942 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
943 return glu::TYPE_SAMPLER_CUBE;
944
945 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
946 return glu::TYPE_INT_SAMPLER_CUBE;
947
948 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
949 return glu::TYPE_UINT_SAMPLER_CUBE;
950
951 default:
952 return glu::TYPE_LAST;
953 }
954 }
955
956 /*--------------------------------------------------------------------*//*!
957 * \brief Get GLSL sampler type for texture format.
958 *
959 * If no mapping is found, glu::TYPE_LAST is returned.
960 *
961 * \param format Texture format
962 * \return GLSL 2D array sampler type for format
963 *//*--------------------------------------------------------------------*/
getSampler2DArrayType(tcu::TextureFormat format)964 DataType getSampler2DArrayType (tcu::TextureFormat format)
965 {
966 using tcu::TextureFormat;
967
968 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
969 return TYPE_SAMPLER_2D_ARRAY;
970
971 if (format.order == TextureFormat::S)
972 return TYPE_LAST;
973
974 switch (tcu::getTextureChannelClass(format.type))
975 {
976 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
977 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
978 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
979 return glu::TYPE_SAMPLER_2D_ARRAY;
980
981 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
982 return glu::TYPE_INT_SAMPLER_2D_ARRAY;
983
984 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
985 return glu::TYPE_UINT_SAMPLER_2D_ARRAY;
986
987 default:
988 return glu::TYPE_LAST;
989 }
990 }
991
992 /*--------------------------------------------------------------------*//*!
993 * \brief Get GLSL sampler type for texture format.
994 *
995 * If no mapping is found, glu::TYPE_LAST is returned.
996 *
997 * \param format Texture format
998 * \return GLSL 3D sampler type for format
999 *//*--------------------------------------------------------------------*/
getSampler3DType(tcu::TextureFormat format)1000 DataType getSampler3DType (tcu::TextureFormat format)
1001 {
1002 using tcu::TextureFormat;
1003
1004 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1005 return TYPE_SAMPLER_3D;
1006
1007 if (format.order == TextureFormat::S)
1008 return TYPE_LAST;
1009
1010 switch (tcu::getTextureChannelClass(format.type))
1011 {
1012 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1013 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1014 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1015 return glu::TYPE_SAMPLER_3D;
1016
1017 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1018 return glu::TYPE_INT_SAMPLER_3D;
1019
1020 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1021 return glu::TYPE_UINT_SAMPLER_3D;
1022
1023 default:
1024 return glu::TYPE_LAST;
1025 }
1026 }
1027
1028 /*--------------------------------------------------------------------*//*!
1029 * \brief Get GLSL sampler type for texture format.
1030 *
1031 * If no mapping is found, glu::TYPE_LAST is returned.
1032 *
1033 * \param format Texture format
1034 * \return GLSL cube map array sampler type for format
1035 *//*--------------------------------------------------------------------*/
getSamplerCubeArrayType(tcu::TextureFormat format)1036 DataType getSamplerCubeArrayType (tcu::TextureFormat format)
1037 {
1038 using tcu::TextureFormat;
1039
1040 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1041 return TYPE_SAMPLER_CUBE_ARRAY;
1042
1043 if (format.order == TextureFormat::S)
1044 return TYPE_LAST;
1045
1046 switch (tcu::getTextureChannelClass(format.type))
1047 {
1048 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1049 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1050 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1051 return glu::TYPE_SAMPLER_CUBE_ARRAY;
1052
1053 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1054 return glu::TYPE_INT_SAMPLER_CUBE_ARRAY;
1055
1056 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1057 return glu::TYPE_UINT_SAMPLER_CUBE_ARRAY;
1058
1059 default:
1060 return glu::TYPE_LAST;
1061 }
1062 }
1063
1064 enum RenderableType
1065 {
1066 RENDERABLE_COLOR = (1<<0),
1067 RENDERABLE_DEPTH = (1<<1),
1068 RENDERABLE_STENCIL = (1<<2)
1069 };
1070
getRenderableBitsES3(const ContextInfo & contextInfo,deUint32 internalFormat)1071 static deUint32 getRenderableBitsES3 (const ContextInfo& contextInfo, deUint32 internalFormat)
1072 {
1073 switch (internalFormat)
1074 {
1075 // Color-renderable formats
1076 case GL_RGBA32I:
1077 case GL_RGBA32UI:
1078 case GL_RGBA16I:
1079 case GL_RGBA16UI:
1080 case GL_RGBA8:
1081 case GL_RGBA8I:
1082 case GL_RGBA8UI:
1083 case GL_SRGB8_ALPHA8:
1084 case GL_RGB10_A2:
1085 case GL_RGB10_A2UI:
1086 case GL_RGBA4:
1087 case GL_RGB5_A1:
1088 case GL_RGB8:
1089 case GL_RGB565:
1090 case GL_RG32I:
1091 case GL_RG32UI:
1092 case GL_RG16I:
1093 case GL_RG16UI:
1094 case GL_RG8:
1095 case GL_RG8I:
1096 case GL_RG8UI:
1097 case GL_R32I:
1098 case GL_R32UI:
1099 case GL_R16I:
1100 case GL_R16UI:
1101 case GL_R8:
1102 case GL_R8I:
1103 case GL_R8UI:
1104 return RENDERABLE_COLOR;
1105
1106 // GL_EXT_color_buffer_float
1107 case GL_RGBA32F:
1108 case GL_R11F_G11F_B10F:
1109 case GL_RG32F:
1110 case GL_R32F:
1111 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float"))
1112 return RENDERABLE_COLOR;
1113 else
1114 return 0;
1115
1116 // GL_EXT_color_buffer_float / GL_EXT_color_buffer_half_float
1117 case GL_RGBA16F:
1118 case GL_RG16F:
1119 case GL_R16F:
1120 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float") ||
1121 contextInfo.isExtensionSupported("GL_EXT_color_buffer_half_float"))
1122 return RENDERABLE_COLOR;
1123 else
1124 return 0;
1125
1126 // Depth formats
1127 case GL_DEPTH_COMPONENT32F:
1128 case GL_DEPTH_COMPONENT24:
1129 case GL_DEPTH_COMPONENT16:
1130 return RENDERABLE_DEPTH;
1131
1132 // Depth+stencil formats
1133 case GL_DEPTH32F_STENCIL8:
1134 case GL_DEPTH24_STENCIL8:
1135 return RENDERABLE_DEPTH|RENDERABLE_STENCIL;
1136
1137 // Stencil formats
1138 case GL_STENCIL_INDEX8:
1139 return RENDERABLE_STENCIL;
1140
1141 default:
1142 return 0;
1143 }
1144 }
1145
1146 /*--------------------------------------------------------------------*//*!
1147 * \brief Check if sized internal format is color-renderable.
1148 * \note Works currently only on ES3 context.
1149 *//*--------------------------------------------------------------------*/
isSizedFormatColorRenderable(const RenderContext & renderCtx,const ContextInfo & contextInfo,deUint32 sizedFormat)1150 bool isSizedFormatColorRenderable (const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat)
1151 {
1152 deUint32 renderable = 0;
1153
1154 if (renderCtx.getType().getAPI() == ApiType::es(3,0))
1155 renderable = getRenderableBitsES3(contextInfo, sizedFormat);
1156 else
1157 throw tcu::InternalError("Context type not supported in query");
1158
1159 return (renderable & RENDERABLE_COLOR) != 0;
1160 }
1161
getDefaultGatherOffsets(void)1162 const tcu::IVec2 (&getDefaultGatherOffsets (void))[4]
1163 {
1164 static const tcu::IVec2 s_defaultOffsets[4] =
1165 {
1166 tcu::IVec2(0, 1),
1167 tcu::IVec2(1, 1),
1168 tcu::IVec2(1, 0),
1169 tcu::IVec2(0, 0),
1170 };
1171 return s_defaultOffsets;
1172 }
1173
1174 tcu::PixelBufferAccess getTextureBufferEffectiveRefTexture (TextureBuffer& buffer, int maxTextureBufferSize)
1175 {
1176 DE_ASSERT(maxTextureBufferSize > 0);
1177
1178 const tcu::PixelBufferAccess& fullAccess = buffer.getFullRefTexture();
1179
1180 return tcu::PixelBufferAccess(fullAccess.getFormat(),
1181 tcu::IVec3(de::min(fullAccess.getWidth(), maxTextureBufferSize), 1, 1),
1182 fullAccess.getPitch(),
1183 fullAccess.getDataPtr());
1184 }
1185
getTextureBufferEffectiveRefTexture(const TextureBuffer & buffer,int maxTextureBufferSize)1186 tcu::ConstPixelBufferAccess getTextureBufferEffectiveRefTexture (const TextureBuffer& buffer, int maxTextureBufferSize)
1187 {
1188 return getTextureBufferEffectiveRefTexture(const_cast<TextureBuffer&>(buffer), maxTextureBufferSize);
1189 }
1190
1191 } // glu
1192