1 /*-------------------------------------------------------------------------
2 * drawElements Quality Program OpenGL ES Utilities
3 * ------------------------------------------------
5 * Copyright 2014 The Android Open Source Project
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
11 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 * \brief Texture format utilities.
22 *//*--------------------------------------------------------------------*/
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"
37 /*--------------------------------------------------------------------*//*!
38 * \brief Map tcu::TextureFormat to GL pixel transfer format.
40 * Maps generic texture format description to GL pixel transfer format.
41 * If no mapping is found, throws tcu::InternalError.
43 * \param texFormat Generic texture format.
44 * \return GL pixel transfer format.
45 *//*--------------------------------------------------------------------*/
46 TransferFormat getTransferFormat (tcu::TextureFormat texFormat)
48 using tcu::TextureFormat;
50 deUint32 format = GL_NONE;
51 deUint32 type = GL_NONE;
54 switch (texFormat.type)
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:
71 switch (texFormat.order)
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;
88 case TextureFormat::BGRA:
97 switch (texFormat.type)
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
122 : GL_UNSIGNED_INT_24_8; break;
125 throw tcu::InternalError("Can't map texture format to GL transfer format");
128 return TransferFormat(format, type);
131 /*--------------------------------------------------------------------*//*!
132 * \brief Map tcu::TextureFormat to GL internal sized format.
134 * Maps generic texture format description to GL internal format.
135 * If no mapping is found, throws tcu::InternalError.
137 * \param texFormat Generic texture format.
138 * \return GL sized internal format.
139 *//*--------------------------------------------------------------------*/
140 deUint32 getInternalFormat (tcu::TextureFormat texFormat)
142 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELORDER_LAST < (1<<16));
143 DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELTYPE_LAST < (1<<16));
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)
148 switch (PACK_FMT(texFormat.order, texFormat.type))
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;
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;
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;
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;
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;
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;
224 throw tcu::InternalError("Can't map texture format to GL internal format");
228 /*--------------------------------------------------------------------*//*!
229 * \brief Map generic compressed format to GL compressed format enum.
231 * Maps generic compressed format to GL compressed format enum value.
232 * If no mapping is found, throws tcu::InternalError.
234 * \param format Generic compressed format.
235 * \return GL compressed texture format.
236 *//*--------------------------------------------------------------------*/
237 deUint32 getGLFormat (tcu::CompressedTexFormat format)
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;
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;
283 throw tcu::InternalError("Can't map compressed format to GL format");
287 /*--------------------------------------------------------------------*//*!
288 * \brief Map compressed GL format to generic compressed format.
290 * Maps compressed GL format to generic compressed format.
291 * If no mapping is found, throws tcu::InternalError.
293 * \param GL compressed texture format.
294 * \return format Generic compressed format.
295 *//*--------------------------------------------------------------------*/
296 tcu::CompressedTexFormat mapGLCompressedTexFormat (deUint32 format)
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;
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;
342 throw tcu::InternalError("Can't map compressed GL format to compressed format");
346 bool isCompressedFormat (deUint32 internalFormat)
348 switch (internalFormat)
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:
396 static tcu::TextureFormat::ChannelType mapGLChannelType (deUint32 dataType, bool normalized)
398 // \note Normalized bit is ignored where it doesn't apply.
399 using tcu::TextureFormat;
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;
420 // GL_OES_texture_half_float
421 case GL_HALF_FLOAT_OES: return TextureFormat::HALF_FLOAT;
425 return TextureFormat::CHANNELTYPE_LAST;
429 /*--------------------------------------------------------------------*//*!
430 * \brief Map GL pixel transfer format to tcu::TextureFormat.
432 * If no mapping is found, throws tcu::InternalError.
434 * \param format GL pixel format.
435 * \param dataType GL data type.
436 * \return Generic texture format.
437 *//*--------------------------------------------------------------------*/
438 tcu::TextureFormat mapGLTransferFormat (deUint32 format, deUint32 dataType)
440 using tcu::TextureFormat;
443 case GL_ALPHA: return TextureFormat(TextureFormat::A, mapGLChannelType(dataType, true));
444 case GL_LUMINANCE: return TextureFormat(TextureFormat::L, mapGLChannelType(dataType, true));
445 case GL_LUMINANCE_ALPHA: return TextureFormat(TextureFormat::LA, mapGLChannelType(dataType, true));
446 case GL_RGB: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, true));
447 case GL_RGBA: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, true));
448 case GL_BGRA: return TextureFormat(TextureFormat::BGRA, mapGLChannelType(dataType, true));
449 case GL_RG: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, true));
450 case GL_RED: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, true));
451 case GL_RGBA_INTEGER: return TextureFormat(TextureFormat::RGBA, mapGLChannelType(dataType, false));
452 case GL_RGB_INTEGER: return TextureFormat(TextureFormat::RGB, mapGLChannelType(dataType, false));
453 case GL_RG_INTEGER: return TextureFormat(TextureFormat::RG, mapGLChannelType(dataType, false));
454 case GL_RED_INTEGER: return TextureFormat(TextureFormat::R, mapGLChannelType(dataType, false));
455 case GL_SRGB: return TextureFormat(TextureFormat::sRGB, mapGLChannelType(dataType, false));
456 case GL_SRGB_ALPHA: return TextureFormat(TextureFormat::sRGBA, mapGLChannelType(dataType, false));
458 case GL_DEPTH_COMPONENT: return TextureFormat(TextureFormat::D, mapGLChannelType(dataType, true));
459 case GL_DEPTH_STENCIL: return TextureFormat(TextureFormat::DS, mapGLChannelType(dataType, true));
462 throw tcu::InternalError(string("Can't map GL pixel format (") + tcu::toHex(format).toString() + ", " + tcu::toHex(dataType).toString() + ") to texture format");
466 /*--------------------------------------------------------------------*//*!
467 * \brief Map GL internal texture format to tcu::TextureFormat.
469 * If no mapping is found, throws tcu::InternalError.
471 * \param internalFormat Sized internal format.
472 * \return Generic texture format.
473 *//*--------------------------------------------------------------------*/
474 tcu::TextureFormat mapGLInternalFormat (deUint32 internalFormat)
476 using tcu::TextureFormat;
477 switch (internalFormat)
479 case GL_RGB5_A1: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551);
480 case GL_RGBA4: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_4444);
481 case GL_RGB565: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_SHORT_565);
482 case GL_DEPTH_COMPONENT16: return TextureFormat(TextureFormat::D, TextureFormat::UNORM_INT16);
483 case GL_STENCIL_INDEX8: return TextureFormat(TextureFormat::S, TextureFormat::UNSIGNED_INT8);
485 case GL_RGBA32F: return TextureFormat(TextureFormat::RGBA, TextureFormat::FLOAT);
486 case GL_RGBA32I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT32);
487 case GL_RGBA32UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT32);
488 case GL_RGBA16: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT16);
489 case GL_RGBA16_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT16);
490 case GL_RGBA16F: return TextureFormat(TextureFormat::RGBA, TextureFormat::HALF_FLOAT);
491 case GL_RGBA16I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT16);
492 case GL_RGBA16UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT16);
493 case GL_RGBA8: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT8);
494 case GL_RGBA8I: return TextureFormat(TextureFormat::RGBA, TextureFormat::SIGNED_INT8);
495 case GL_RGBA8UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT8);
496 case GL_SRGB8_ALPHA8: return TextureFormat(TextureFormat::sRGBA, TextureFormat::UNORM_INT8);
497 case GL_RGB10_A2: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_INT_1010102_REV);
498 case GL_RGB10_A2UI: return TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV);
499 case GL_RGBA8_SNORM: return TextureFormat(TextureFormat::RGBA, TextureFormat::SNORM_INT8);
501 case GL_RGB8: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT8);
502 case GL_R11F_G11F_B10F: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_11F_11F_10F_REV);
503 case GL_RGB32F: return TextureFormat(TextureFormat::RGB, TextureFormat::FLOAT);
504 case GL_RGB32I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT32);
505 case GL_RGB32UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT32);
506 case GL_RGB16: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT16);
507 case GL_RGB16_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT16);
508 case GL_RGB16F: return TextureFormat(TextureFormat::RGB, TextureFormat::HALF_FLOAT);
509 case GL_RGB16I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT16);
510 case GL_RGB16UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT16);
511 case GL_RGB8_SNORM: return TextureFormat(TextureFormat::RGB, TextureFormat::SNORM_INT8);
512 case GL_RGB8I: return TextureFormat(TextureFormat::RGB, TextureFormat::SIGNED_INT8);
513 case GL_RGB8UI: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT8);
514 case GL_SRGB8: return TextureFormat(TextureFormat::sRGB, TextureFormat::UNORM_INT8);
515 case GL_RGB9_E5: return TextureFormat(TextureFormat::RGB, TextureFormat::UNSIGNED_INT_999_E5_REV);
516 case GL_RGB10: return TextureFormat(TextureFormat::RGB, TextureFormat::UNORM_INT_1010102_REV);
518 case GL_RG32F: return TextureFormat(TextureFormat::RG, TextureFormat::FLOAT);
519 case GL_RG32I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT32);
520 case GL_RG32UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT32);
521 case GL_RG16: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT16);
522 case GL_RG16_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT16);
523 case GL_RG16F: return TextureFormat(TextureFormat::RG, TextureFormat::HALF_FLOAT);
524 case GL_RG16I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT16);
525 case GL_RG16UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT16);
526 case GL_RG8: return TextureFormat(TextureFormat::RG, TextureFormat::UNORM_INT8);
527 case GL_RG8I: return TextureFormat(TextureFormat::RG, TextureFormat::SIGNED_INT8);
528 case GL_RG8UI: return TextureFormat(TextureFormat::RG, TextureFormat::UNSIGNED_INT8);
529 case GL_RG8_SNORM: return TextureFormat(TextureFormat::RG, TextureFormat::SNORM_INT8);
530 case GL_SRG8_EXT: return TextureFormat(TextureFormat::sRG, TextureFormat::UNORM_INT8);
532 case GL_R32F: return TextureFormat(TextureFormat::R, TextureFormat::FLOAT);
533 case GL_R32I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT32);
534 case GL_R32UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT32);
535 case GL_R16: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT16);
536 case GL_R16_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT16);
537 case GL_R16F: return TextureFormat(TextureFormat::R, TextureFormat::HALF_FLOAT);
538 case GL_R16I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT16);
539 case GL_R16UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT16);
540 case GL_R8: return TextureFormat(TextureFormat::R, TextureFormat::UNORM_INT8);
541 case GL_R8I: return TextureFormat(TextureFormat::R, TextureFormat::SIGNED_INT8);
542 case GL_R8UI: return TextureFormat(TextureFormat::R, TextureFormat::UNSIGNED_INT8);
543 case GL_R8_SNORM: return TextureFormat(TextureFormat::R, TextureFormat::SNORM_INT8);
544 case GL_SR8_EXT: return TextureFormat(TextureFormat::sR, TextureFormat::UNORM_INT8);
546 case GL_DEPTH_COMPONENT32F: return TextureFormat(TextureFormat::D, TextureFormat::FLOAT);
547 case GL_DEPTH_COMPONENT24: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT_24_8);
548 case GL_DEPTH_COMPONENT32: return TextureFormat(TextureFormat::D, TextureFormat::UNSIGNED_INT32);
549 case GL_DEPTH32F_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV);
550 case GL_DEPTH24_STENCIL8: return TextureFormat(TextureFormat::DS, TextureFormat::UNSIGNED_INT_24_8);
553 throw tcu::InternalError(string("Can't map GL sized internal format (") + tcu::toHex(internalFormat).toString() + ") to texture format");
557 bool isGLInternalColorFormatFilterable (deUint32 format)
576 case GL_SRGB8_ALPHA8:
581 case GL_R11F_G11F_B10F:
622 static inline tcu::Sampler::WrapMode mapGLWrapMode (deUint32 wrapMode)
626 case GL_CLAMP_TO_EDGE: return tcu::Sampler::CLAMP_TO_EDGE;
627 case GL_CLAMP_TO_BORDER: return tcu::Sampler::CLAMP_TO_BORDER;
628 case GL_REPEAT: return tcu::Sampler::REPEAT_GL;
629 case GL_MIRRORED_REPEAT: return tcu::Sampler::MIRRORED_REPEAT_GL;
631 throw tcu::InternalError("Can't map GL wrap mode " + tcu::toHex(wrapMode).toString());
635 static inline tcu::Sampler::FilterMode mapGLMinFilterMode (deUint32 filterMode)
639 case GL_NEAREST: return tcu::Sampler::NEAREST;
640 case GL_LINEAR: return tcu::Sampler::LINEAR;
641 case GL_NEAREST_MIPMAP_NEAREST: return tcu::Sampler::NEAREST_MIPMAP_NEAREST;
642 case GL_NEAREST_MIPMAP_LINEAR: return tcu::Sampler::NEAREST_MIPMAP_LINEAR;
643 case GL_LINEAR_MIPMAP_NEAREST: return tcu::Sampler::LINEAR_MIPMAP_NEAREST;
644 case GL_LINEAR_MIPMAP_LINEAR: return tcu::Sampler::LINEAR_MIPMAP_LINEAR;
646 throw tcu::InternalError("Can't map GL min filter mode" + tcu::toHex(filterMode).toString());
650 static inline tcu::Sampler::FilterMode mapGLMagFilterMode (deUint32 filterMode)
654 case GL_NEAREST: return tcu::Sampler::NEAREST;
655 case GL_LINEAR: return tcu::Sampler::LINEAR;
657 throw tcu::InternalError("Can't map GL mag filter mode" + tcu::toHex(filterMode).toString());
661 /*--------------------------------------------------------------------*//*!
662 * \brief Map GL sampler parameters to tcu::Sampler.
664 * If no mapping is found, throws tcu::InternalError.
666 * \param wrapS S-component wrap mode
667 * \param minFilter Minification filter mode
668 * \param magFilter Magnification filter mode
669 * \return Sampler description.
670 *//*--------------------------------------------------------------------*/
671 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 minFilter, deUint32 magFilter)
673 return mapGLSampler(wrapS, wrapS, wrapS, minFilter, magFilter);
677 /*--------------------------------------------------------------------*//*!
678 * \brief Map GL sampler parameters to tcu::Sampler.
680 * If no mapping is found, throws tcu::InternalError.
682 * \param wrapS S-component wrap mode
683 * \param wrapT T-component wrap mode
684 * \param minFilter Minification filter mode
685 * \param magFilter Magnification filter mode
686 * \return Sampler description.
687 *//*--------------------------------------------------------------------*/
688 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 minFilter, deUint32 magFilter)
690 return mapGLSampler(wrapS, wrapT, wrapS, minFilter, magFilter);
693 /*--------------------------------------------------------------------*//*!
694 * \brief Map GL sampler parameters to tcu::Sampler.
696 * If no mapping is found, throws tcu::InternalError.
698 * \param wrapS S-component wrap mode
699 * \param wrapT T-component wrap mode
700 * \param wrapR R-component wrap mode
701 * \param minFilter Minification filter mode
702 * \param magFilter Magnification filter mode
703 * \return Sampler description.
704 *//*--------------------------------------------------------------------*/
705 tcu::Sampler mapGLSampler (deUint32 wrapS, deUint32 wrapT, deUint32 wrapR, deUint32 minFilter, deUint32 magFilter)
707 return tcu::Sampler(mapGLWrapMode(wrapS), mapGLWrapMode(wrapT), mapGLWrapMode(wrapR),
708 mapGLMinFilterMode(minFilter), mapGLMagFilterMode(magFilter),
709 0.0f /* lod threshold */,
710 true /* normalized coords */,
711 tcu::Sampler::COMPAREMODE_NONE /* no compare */,
712 0 /* compare channel */,
713 tcu::Vec4(0.0f) /* border color, not used */);
716 /*--------------------------------------------------------------------*//*!
717 * \brief Map GL compare function to tcu::Sampler::CompareMode.
719 * If no mapping is found, throws tcu::InternalError.
721 * \param mode GL compare mode
722 * \return Compare mode
723 *//*--------------------------------------------------------------------*/
724 tcu::Sampler::CompareMode mapGLCompareFunc (deUint32 mode)
728 case GL_LESS: return tcu::Sampler::COMPAREMODE_LESS;
729 case GL_LEQUAL: return tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL;
730 case GL_GREATER: return tcu::Sampler::COMPAREMODE_GREATER;
731 case GL_GEQUAL: return tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL;
732 case GL_EQUAL: return tcu::Sampler::COMPAREMODE_EQUAL;
733 case GL_NOTEQUAL: return tcu::Sampler::COMPAREMODE_NOT_EQUAL;
734 case GL_ALWAYS: return tcu::Sampler::COMPAREMODE_ALWAYS;
735 case GL_NEVER: return tcu::Sampler::COMPAREMODE_NEVER;
737 throw tcu::InternalError("Can't map GL compare mode " + tcu::toHex(mode).toString());
741 /*--------------------------------------------------------------------*//*!
742 * \brief Get GL wrap mode.
744 * If no mapping is found, throws tcu::InternalError.
746 * \param wrapMode Wrap mode
747 * \return GL wrap mode
748 *//*--------------------------------------------------------------------*/
749 deUint32 getGLWrapMode (tcu::Sampler::WrapMode wrapMode)
751 DE_ASSERT(wrapMode != tcu::Sampler::WRAPMODE_LAST);
754 case tcu::Sampler::CLAMP_TO_EDGE: return GL_CLAMP_TO_EDGE;
755 case tcu::Sampler::CLAMP_TO_BORDER: return GL_CLAMP_TO_BORDER;
756 case tcu::Sampler::REPEAT_GL: return GL_REPEAT;
757 case tcu::Sampler::MIRRORED_REPEAT_GL: return GL_MIRRORED_REPEAT;
759 throw tcu::InternalError("Can't map wrap mode");
763 /*--------------------------------------------------------------------*//*!
764 * \brief Get GL filter mode.
766 * If no mapping is found, throws tcu::InternalError.
768 * \param filterMode Filter mode
769 * \return GL filter mode
770 *//*--------------------------------------------------------------------*/
771 deUint32 getGLFilterMode (tcu::Sampler::FilterMode filterMode)
773 DE_ASSERT(filterMode != tcu::Sampler::FILTERMODE_LAST);
776 case tcu::Sampler::NEAREST: return GL_NEAREST;
777 case tcu::Sampler::LINEAR: return GL_LINEAR;
778 case tcu::Sampler::NEAREST_MIPMAP_NEAREST: return GL_NEAREST_MIPMAP_NEAREST;
779 case tcu::Sampler::NEAREST_MIPMAP_LINEAR: return GL_NEAREST_MIPMAP_LINEAR;
780 case tcu::Sampler::LINEAR_MIPMAP_NEAREST: return GL_LINEAR_MIPMAP_NEAREST;
781 case tcu::Sampler::LINEAR_MIPMAP_LINEAR: return GL_LINEAR_MIPMAP_LINEAR;
783 throw tcu::InternalError("Can't map filter mode");
787 /*--------------------------------------------------------------------*//*!
788 * \brief Get GL compare mode.
790 * If no mapping is found, throws tcu::InternalError.
792 * \param compareMode Compare mode
793 * \return GL compare mode
794 *//*--------------------------------------------------------------------*/
795 deUint32 getGLCompareFunc (tcu::Sampler::CompareMode compareMode)
797 DE_ASSERT(compareMode != tcu::Sampler::COMPAREMODE_NONE);
800 case tcu::Sampler::COMPAREMODE_NONE: return GL_NONE;
801 case tcu::Sampler::COMPAREMODE_LESS: return GL_LESS;
802 case tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL: return GL_LEQUAL;
803 case tcu::Sampler::COMPAREMODE_GREATER: return GL_GREATER;
804 case tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL: return GL_GEQUAL;
805 case tcu::Sampler::COMPAREMODE_EQUAL: return GL_EQUAL;
806 case tcu::Sampler::COMPAREMODE_NOT_EQUAL: return GL_NOTEQUAL;
807 case tcu::Sampler::COMPAREMODE_ALWAYS: return GL_ALWAYS;
808 case tcu::Sampler::COMPAREMODE_NEVER: return GL_NEVER;
810 throw tcu::InternalError("Can't map compare mode");
814 /*--------------------------------------------------------------------*//*!
815 * \brief Get GL cube face.
817 * If no mapping is found, throws tcu::InternalError.
819 * \param face Cube face
820 * \return GL cube face
821 *//*--------------------------------------------------------------------*/
822 deUint32 getGLCubeFace (tcu::CubeFace face)
824 DE_ASSERT(face != tcu::CUBEFACE_LAST);
827 case tcu::CUBEFACE_NEGATIVE_X: return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
828 case tcu::CUBEFACE_POSITIVE_X: return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
829 case tcu::CUBEFACE_NEGATIVE_Y: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
830 case tcu::CUBEFACE_POSITIVE_Y: return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
831 case tcu::CUBEFACE_NEGATIVE_Z: return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
832 case tcu::CUBEFACE_POSITIVE_Z: return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
834 throw tcu::InternalError("Can't map cube face");
838 tcu::CubeFace getCubeFaceFromGL (deUint32 face)
842 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: return tcu::CUBEFACE_NEGATIVE_X;
843 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: return tcu::CUBEFACE_POSITIVE_X;
844 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: return tcu::CUBEFACE_NEGATIVE_Y;
845 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: return tcu::CUBEFACE_POSITIVE_Y;
846 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return tcu::CUBEFACE_NEGATIVE_Z;
847 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: return tcu::CUBEFACE_POSITIVE_Z;
849 throw tcu::InternalError("Can't map cube face");
853 /*--------------------------------------------------------------------*//*!
854 * \brief Get GLSL sampler type for texture format.
856 * If no mapping is found, glu::TYPE_LAST is returned.
858 * \param format Texture format
859 * \return GLSL 1D sampler type for format
860 *//*--------------------------------------------------------------------*/
861 DataType getSampler1DType (tcu::TextureFormat format)
863 using tcu::TextureFormat;
865 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
866 return TYPE_SAMPLER_1D;
868 if (format.order == TextureFormat::S)
871 switch (tcu::getTextureChannelClass(format.type))
873 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
874 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
875 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
876 return glu::TYPE_SAMPLER_1D;
878 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
879 return glu::TYPE_INT_SAMPLER_1D;
881 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
882 return glu::TYPE_UINT_SAMPLER_1D;
885 return glu::TYPE_LAST;
889 /*--------------------------------------------------------------------*//*!
890 * \brief Get GLSL sampler type for texture format.
892 * If no mapping is found, glu::TYPE_LAST is returned.
894 * \param format Texture format
895 * \return GLSL 2D sampler type for format
896 *//*--------------------------------------------------------------------*/
897 DataType getSampler2DType (tcu::TextureFormat format)
899 using tcu::TextureFormat;
901 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
902 return TYPE_SAMPLER_2D;
904 if (format.order == TextureFormat::S)
907 switch (tcu::getTextureChannelClass(format.type))
909 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
910 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
911 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
912 return glu::TYPE_SAMPLER_2D;
914 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
915 return glu::TYPE_INT_SAMPLER_2D;
917 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
918 return glu::TYPE_UINT_SAMPLER_2D;
921 return glu::TYPE_LAST;
925 /*--------------------------------------------------------------------*//*!
926 * \brief Get GLSL sampler type for texture format.
928 * If no mapping is found, glu::TYPE_LAST is returned.
930 * \param format Texture format
931 * \return GLSL cube map sampler type for format
932 *//*--------------------------------------------------------------------*/
933 DataType getSamplerCubeType (tcu::TextureFormat format)
935 using tcu::TextureFormat;
937 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
938 return TYPE_SAMPLER_CUBE;
940 if (format.order == TextureFormat::S)
943 switch (tcu::getTextureChannelClass(format.type))
945 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
946 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
947 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
948 return glu::TYPE_SAMPLER_CUBE;
950 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
951 return glu::TYPE_INT_SAMPLER_CUBE;
953 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
954 return glu::TYPE_UINT_SAMPLER_CUBE;
957 return glu::TYPE_LAST;
961 /*--------------------------------------------------------------------*//*!
962 * \brief Get GLSL sampler type for texture format.
964 * If no mapping is found, glu::TYPE_LAST is returned.
966 * \param format Texture format
967 * \return GLSL 1D array sampler type for format
968 *//*--------------------------------------------------------------------*/
969 DataType getSampler1DArrayType (tcu::TextureFormat format)
971 using tcu::TextureFormat;
973 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
974 return TYPE_SAMPLER_1D_ARRAY;
976 if (format.order == TextureFormat::S)
979 switch (tcu::getTextureChannelClass(format.type))
981 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
982 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
983 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
984 return glu::TYPE_SAMPLER_1D_ARRAY;
986 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
987 return glu::TYPE_INT_SAMPLER_1D_ARRAY;
989 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
990 return glu::TYPE_UINT_SAMPLER_1D_ARRAY;
993 return glu::TYPE_LAST;
997 /*--------------------------------------------------------------------*//*!
998 * \brief Get GLSL sampler type for texture format.
1000 * If no mapping is found, glu::TYPE_LAST is returned.
1002 * \param format Texture format
1003 * \return GLSL 2D array sampler type for format
1004 *//*--------------------------------------------------------------------*/
1005 DataType getSampler2DArrayType (tcu::TextureFormat format)
1007 using tcu::TextureFormat;
1009 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1010 return TYPE_SAMPLER_2D_ARRAY;
1012 if (format.order == TextureFormat::S)
1015 switch (tcu::getTextureChannelClass(format.type))
1017 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1018 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1019 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1020 return glu::TYPE_SAMPLER_2D_ARRAY;
1022 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1023 return glu::TYPE_INT_SAMPLER_2D_ARRAY;
1025 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1026 return glu::TYPE_UINT_SAMPLER_2D_ARRAY;
1029 return glu::TYPE_LAST;
1033 /*--------------------------------------------------------------------*//*!
1034 * \brief Get GLSL sampler type for texture format.
1036 * If no mapping is found, glu::TYPE_LAST is returned.
1038 * \param format Texture format
1039 * \return GLSL 3D sampler type for format
1040 *//*--------------------------------------------------------------------*/
1041 DataType getSampler3DType (tcu::TextureFormat format)
1043 using tcu::TextureFormat;
1045 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1046 return TYPE_SAMPLER_3D;
1048 if (format.order == TextureFormat::S)
1051 switch (tcu::getTextureChannelClass(format.type))
1053 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1054 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1055 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1056 return glu::TYPE_SAMPLER_3D;
1058 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1059 return glu::TYPE_INT_SAMPLER_3D;
1061 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1062 return glu::TYPE_UINT_SAMPLER_3D;
1065 return glu::TYPE_LAST;
1069 /*--------------------------------------------------------------------*//*!
1070 * \brief Get GLSL sampler type for texture format.
1072 * If no mapping is found, glu::TYPE_LAST is returned.
1074 * \param format Texture format
1075 * \return GLSL cube map array sampler type for format
1076 *//*--------------------------------------------------------------------*/
1077 DataType getSamplerCubeArrayType (tcu::TextureFormat format)
1079 using tcu::TextureFormat;
1081 if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
1082 return TYPE_SAMPLER_CUBE_ARRAY;
1084 if (format.order == TextureFormat::S)
1087 switch (tcu::getTextureChannelClass(format.type))
1089 case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1090 case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1091 case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1092 return glu::TYPE_SAMPLER_CUBE_ARRAY;
1094 case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1095 return glu::TYPE_INT_SAMPLER_CUBE_ARRAY;
1097 case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1098 return glu::TYPE_UINT_SAMPLER_CUBE_ARRAY;
1101 return glu::TYPE_LAST;
1107 RENDERABLE_COLOR = (1<<0),
1108 RENDERABLE_DEPTH = (1<<1),
1109 RENDERABLE_STENCIL = (1<<2)
1112 static deUint32 getRenderableBitsES3 (const ContextInfo& contextInfo, deUint32 internalFormat)
1114 switch (internalFormat)
1116 // Color-renderable formats
1124 case GL_SRGB8_ALPHA8:
1145 return RENDERABLE_COLOR;
1147 // GL_EXT_color_buffer_float
1149 case GL_R11F_G11F_B10F:
1152 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float"))
1153 return RENDERABLE_COLOR;
1157 // GL_EXT_color_buffer_float / GL_EXT_color_buffer_half_float
1161 if (contextInfo.isExtensionSupported("GL_EXT_color_buffer_float") ||
1162 contextInfo.isExtensionSupported("GL_EXT_color_buffer_half_float"))
1163 return RENDERABLE_COLOR;
1168 case GL_DEPTH_COMPONENT32F:
1169 case GL_DEPTH_COMPONENT24:
1170 case GL_DEPTH_COMPONENT16:
1171 return RENDERABLE_DEPTH;
1173 // Depth+stencil formats
1174 case GL_DEPTH32F_STENCIL8:
1175 case GL_DEPTH24_STENCIL8:
1176 return RENDERABLE_DEPTH|RENDERABLE_STENCIL;
1179 case GL_STENCIL_INDEX8:
1180 return RENDERABLE_STENCIL;
1187 /*--------------------------------------------------------------------*//*!
1188 * \brief Check if sized internal format is color-renderable.
1189 * \note Works currently only on ES3 context.
1190 *//*--------------------------------------------------------------------*/
1191 bool isSizedFormatColorRenderable (const RenderContext& renderCtx, const ContextInfo& contextInfo, deUint32 sizedFormat)
1193 deUint32 renderable = 0;
1195 if (renderCtx.getType().getAPI() == ApiType::es(3,0))
1196 renderable = getRenderableBitsES3(contextInfo, sizedFormat);
1198 throw tcu::InternalError("Context type not supported in query");
1200 return (renderable & RENDERABLE_COLOR) != 0;
1203 const tcu::IVec2 (&getDefaultGatherOffsets (void))[4]
1205 static const tcu::IVec2 s_defaultOffsets[4] =
1212 return s_defaultOffsets;
1215 tcu::PixelBufferAccess getTextureBufferEffectiveRefTexture (TextureBuffer& buffer, int maxTextureBufferSize)
1217 DE_ASSERT(maxTextureBufferSize > 0);
1219 const tcu::PixelBufferAccess& fullAccess = buffer.getFullRefTexture();
1221 return tcu::PixelBufferAccess(fullAccess.getFormat(),
1222 tcu::IVec3(de::min(fullAccess.getWidth(), maxTextureBufferSize), 1, 1),
1223 fullAccess.getPitch(),
1224 fullAccess.getDataPtr());
1227 tcu::ConstPixelBufferAccess getTextureBufferEffectiveRefTexture (const TextureBuffer& buffer, int maxTextureBufferSize)
1229 return getTextureBufferEffectiveRefTexture(const_cast<TextureBuffer&>(buffer), maxTextureBufferSize);