Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 1 | #include "precompiled.h" |
| 2 | // |
Geoff Lang | cec3590 | 2014-04-16 10:52:36 -0400 | [diff] [blame] | 3 | // Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved. |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 4 | // Use of this source code is governed by a BSD-style license that can be |
| 5 | // found in the LICENSE file. |
| 6 | // |
| 7 | |
| 8 | // validationES2.cpp: Validation functions for OpenGL ES 2.0 entry point parameters |
| 9 | |
| 10 | #include "libGLESv2/validationES2.h" |
Geoff Lang | ce63569 | 2013-09-24 13:56:32 -0400 | [diff] [blame] | 11 | #include "libGLESv2/validationES.h" |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 12 | #include "libGLESv2/Context.h" |
| 13 | #include "libGLESv2/Texture.h" |
| 14 | #include "libGLESv2/Framebuffer.h" |
| 15 | #include "libGLESv2/Renderbuffer.h" |
| 16 | #include "libGLESv2/formatutils.h" |
| 17 | #include "libGLESv2/main.h" |
Jamie Madill | e261b44 | 2014-06-25 12:42:21 -0400 | [diff] [blame] | 18 | #include "libGLESv2/FramebufferAttachment.h" |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 19 | |
| 20 | #include "common/mathutil.h" |
| 21 | #include "common/utilities.h" |
| 22 | |
| 23 | namespace gl |
| 24 | { |
| 25 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 26 | static bool validateSubImageParams2D(bool compressed, GLsizei width, GLsizei height, |
| 27 | GLint xoffset, GLint yoffset, GLint level, GLenum format, GLenum type, |
| 28 | gl::Texture2D *texture) |
| 29 | { |
| 30 | if (!texture) |
| 31 | { |
| 32 | return gl::error(GL_INVALID_OPERATION, false); |
| 33 | } |
| 34 | |
| 35 | if (compressed != texture->isCompressed(level)) |
| 36 | { |
| 37 | return gl::error(GL_INVALID_OPERATION, false); |
| 38 | } |
| 39 | |
| 40 | if (format != GL_NONE) |
| 41 | { |
Geoff Lang | 5d60138 | 2014-07-22 15:14:06 -0400 | [diff] [blame^] | 42 | if (gl::GetFormatTypeInfo(format, type).internalFormat != texture->getInternalFormat(level)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 43 | { |
| 44 | return gl::error(GL_INVALID_OPERATION, false); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | if (compressed) |
| 49 | { |
Geoff Lang | a836e48 | 2014-04-28 10:08:27 -0400 | [diff] [blame] | 50 | if ((width % 4 != 0 && width != texture->getWidth(level)) || |
| 51 | (height % 4 != 0 && height != texture->getHeight(level))) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 52 | { |
| 53 | return gl::error(GL_INVALID_OPERATION, false); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | if (xoffset + width > texture->getWidth(level) || |
| 58 | yoffset + height > texture->getHeight(level)) |
| 59 | { |
| 60 | return gl::error(GL_INVALID_VALUE, false); |
| 61 | } |
| 62 | |
| 63 | return true; |
| 64 | } |
| 65 | |
| 66 | static bool validateSubImageParamsCube(bool compressed, GLsizei width, GLsizei height, |
| 67 | GLint xoffset, GLint yoffset, GLenum target, GLint level, GLenum format, GLenum type, |
| 68 | gl::TextureCubeMap *texture) |
| 69 | { |
| 70 | if (!texture) |
| 71 | { |
| 72 | return gl::error(GL_INVALID_OPERATION, false); |
| 73 | } |
| 74 | |
| 75 | if (compressed != texture->isCompressed(target, level)) |
| 76 | { |
| 77 | return gl::error(GL_INVALID_OPERATION, false); |
| 78 | } |
| 79 | |
| 80 | if (format != GL_NONE) |
| 81 | { |
Geoff Lang | 5d60138 | 2014-07-22 15:14:06 -0400 | [diff] [blame^] | 82 | if (gl::GetFormatTypeInfo(format, type).internalFormat != texture->getInternalFormat(target, level)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 83 | { |
| 84 | return gl::error(GL_INVALID_OPERATION, false); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | if (compressed) |
| 89 | { |
| 90 | if ((width % 4 != 0 && width != texture->getWidth(target, 0)) || |
| 91 | (height % 4 != 0 && height != texture->getHeight(target, 0))) |
| 92 | { |
| 93 | return gl::error(GL_INVALID_OPERATION, false); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | if (xoffset + width > texture->getWidth(target, level) || |
| 98 | yoffset + height > texture->getHeight(target, level)) |
| 99 | { |
| 100 | return gl::error(GL_INVALID_VALUE, false); |
| 101 | } |
| 102 | |
| 103 | return true; |
| 104 | } |
| 105 | |
Geoff Lang | 005df41 | 2013-10-16 14:12:50 -0400 | [diff] [blame] | 106 | bool ValidateES2TexImageParameters(gl::Context *context, GLenum target, GLint level, GLenum internalformat, bool isCompressed, bool isSubImage, |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 107 | GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, |
| 108 | GLint border, GLenum format, GLenum type, const GLvoid *pixels) |
| 109 | { |
Jamie Madill | 6f38f82 | 2014-06-06 17:12:20 -0400 | [diff] [blame] | 110 | if (!ValidTexture2DDestinationTarget(context, target)) |
| 111 | { |
| 112 | return gl::error(GL_INVALID_ENUM, false); |
| 113 | } |
| 114 | |
Geoff Lang | ce63569 | 2013-09-24 13:56:32 -0400 | [diff] [blame] | 115 | if (!ValidImageSize(context, target, level, width, height, 1)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 116 | { |
| 117 | return gl::error(GL_INVALID_VALUE, false); |
| 118 | } |
| 119 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 120 | if (level < 0 || xoffset < 0 || |
| 121 | std::numeric_limits<GLsizei>::max() - xoffset < width || |
| 122 | std::numeric_limits<GLsizei>::max() - yoffset < height) |
| 123 | { |
| 124 | return gl::error(GL_INVALID_VALUE, false); |
| 125 | } |
| 126 | |
Geoff Lang | 005df41 | 2013-10-16 14:12:50 -0400 | [diff] [blame] | 127 | if (!isSubImage && !isCompressed && internalformat != format) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 128 | { |
| 129 | return gl::error(GL_INVALID_OPERATION, false); |
| 130 | } |
| 131 | |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 132 | const gl::Caps &caps = context->getCaps(); |
| 133 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 134 | gl::Texture *texture = NULL; |
| 135 | bool textureCompressed = false; |
| 136 | GLenum textureInternalFormat = GL_NONE; |
| 137 | GLint textureLevelWidth = 0; |
| 138 | GLint textureLevelHeight = 0; |
| 139 | switch (target) |
| 140 | { |
| 141 | case GL_TEXTURE_2D: |
| 142 | { |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 143 | if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || |
| 144 | static_cast<GLuint>(height) > (caps.max2DTextureSize >> level)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 145 | { |
| 146 | return gl::error(GL_INVALID_VALUE, false); |
| 147 | } |
| 148 | |
| 149 | gl::Texture2D *tex2d = context->getTexture2D(); |
| 150 | if (tex2d) |
| 151 | { |
| 152 | textureCompressed = tex2d->isCompressed(level); |
| 153 | textureInternalFormat = tex2d->getInternalFormat(level); |
| 154 | textureLevelWidth = tex2d->getWidth(level); |
| 155 | textureLevelHeight = tex2d->getHeight(level); |
| 156 | texture = tex2d; |
| 157 | } |
| 158 | |
| 159 | if (isSubImage && !validateSubImageParams2D(isCompressed, width, height, xoffset, yoffset, |
| 160 | level, format, type, tex2d)) |
| 161 | { |
| 162 | return false; |
| 163 | } |
| 164 | |
| 165 | texture = tex2d; |
| 166 | } |
| 167 | break; |
| 168 | |
| 169 | case GL_TEXTURE_CUBE_MAP_POSITIVE_X: |
| 170 | case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: |
| 171 | case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: |
| 172 | case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: |
| 173 | case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: |
| 174 | case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: |
| 175 | { |
| 176 | if (!isSubImage && width != height) |
| 177 | { |
| 178 | return gl::error(GL_INVALID_VALUE, false); |
| 179 | } |
| 180 | |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 181 | if (static_cast<GLuint>(width) > (caps.maxCubeMapTextureSize >> level) || |
| 182 | static_cast<GLuint>(height) > (caps.maxCubeMapTextureSize >> level)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 183 | { |
| 184 | return gl::error(GL_INVALID_VALUE, false); |
| 185 | } |
| 186 | |
| 187 | gl::TextureCubeMap *texCube = context->getTextureCubeMap(); |
| 188 | if (texCube) |
| 189 | { |
| 190 | textureCompressed = texCube->isCompressed(target, level); |
| 191 | textureInternalFormat = texCube->getInternalFormat(target, level); |
| 192 | textureLevelWidth = texCube->getWidth(target, level); |
| 193 | textureLevelHeight = texCube->getHeight(target, level); |
| 194 | texture = texCube; |
| 195 | } |
| 196 | |
| 197 | if (isSubImage && !validateSubImageParamsCube(isCompressed, width, height, xoffset, yoffset, |
| 198 | target, level, format, type, texCube)) |
| 199 | { |
| 200 | return false; |
| 201 | } |
| 202 | } |
| 203 | break; |
| 204 | |
| 205 | default: |
| 206 | return gl::error(GL_INVALID_ENUM, false); |
| 207 | } |
| 208 | |
| 209 | if (!texture) |
| 210 | { |
| 211 | return gl::error(GL_INVALID_OPERATION, false); |
| 212 | } |
| 213 | |
| 214 | if (!isSubImage && texture->isImmutable()) |
| 215 | { |
| 216 | return gl::error(GL_INVALID_OPERATION, false); |
| 217 | } |
| 218 | |
| 219 | // Verify zero border |
| 220 | if (border != 0) |
| 221 | { |
| 222 | return gl::error(GL_INVALID_VALUE, false); |
| 223 | } |
| 224 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 225 | GLenum actualInternalFormat = isSubImage ? textureInternalFormat : internalformat; |
| 226 | if (isCompressed) |
| 227 | { |
Geoff Lang | d4f180b | 2013-09-24 13:57:44 -0400 | [diff] [blame] | 228 | if (!ValidCompressedImageSize(context, actualInternalFormat, width, height)) |
| 229 | { |
| 230 | return gl::error(GL_INVALID_OPERATION, false); |
| 231 | } |
| 232 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 233 | switch (actualInternalFormat) |
| 234 | { |
| 235 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| 236 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 237 | if (!context->getExtensions().textureCompressionDXT1) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 238 | { |
| 239 | return gl::error(GL_INVALID_ENUM, false); |
| 240 | } |
| 241 | break; |
| 242 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 243 | if (!context->getExtensions().textureCompressionDXT1) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 244 | { |
| 245 | return gl::error(GL_INVALID_ENUM, false); |
| 246 | } |
| 247 | break; |
| 248 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 249 | if (!context->getExtensions().textureCompressionDXT5) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 250 | { |
| 251 | return gl::error(GL_INVALID_ENUM, false); |
| 252 | } |
| 253 | break; |
| 254 | default: |
| 255 | return gl::error(GL_INVALID_ENUM, false); |
| 256 | } |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | // validate <type> by itself (used as secondary key below) |
| 261 | switch (type) |
| 262 | { |
| 263 | case GL_UNSIGNED_BYTE: |
| 264 | case GL_UNSIGNED_SHORT_5_6_5: |
| 265 | case GL_UNSIGNED_SHORT_4_4_4_4: |
| 266 | case GL_UNSIGNED_SHORT_5_5_5_1: |
| 267 | case GL_UNSIGNED_SHORT: |
| 268 | case GL_UNSIGNED_INT: |
| 269 | case GL_UNSIGNED_INT_24_8_OES: |
| 270 | case GL_HALF_FLOAT_OES: |
| 271 | case GL_FLOAT: |
| 272 | break; |
| 273 | default: |
| 274 | return gl::error(GL_INVALID_ENUM, false); |
| 275 | } |
| 276 | |
| 277 | // validate <format> + <type> combinations |
| 278 | // - invalid <format> -> sets INVALID_ENUM |
| 279 | // - invalid <format>+<type> combination -> sets INVALID_OPERATION |
| 280 | switch (format) |
| 281 | { |
| 282 | case GL_ALPHA: |
| 283 | case GL_LUMINANCE: |
| 284 | case GL_LUMINANCE_ALPHA: |
| 285 | switch (type) |
| 286 | { |
| 287 | case GL_UNSIGNED_BYTE: |
| 288 | case GL_FLOAT: |
| 289 | case GL_HALF_FLOAT_OES: |
| 290 | break; |
| 291 | default: |
| 292 | return gl::error(GL_INVALID_OPERATION, false); |
| 293 | } |
| 294 | break; |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 295 | case GL_RED: |
Geoff Lang | cec3590 | 2014-04-16 10:52:36 -0400 | [diff] [blame] | 296 | case GL_RG: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 297 | if (!context->getExtensions().textureRG) |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 298 | { |
| 299 | return gl::error(GL_INVALID_ENUM, false); |
| 300 | } |
| 301 | switch (type) |
| 302 | { |
| 303 | case GL_UNSIGNED_BYTE: |
| 304 | case GL_FLOAT: |
| 305 | case GL_HALF_FLOAT_OES: |
| 306 | break; |
| 307 | default: |
| 308 | return gl::error(GL_INVALID_OPERATION, false); |
| 309 | } |
| 310 | break; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 311 | case GL_RGB: |
| 312 | switch (type) |
| 313 | { |
| 314 | case GL_UNSIGNED_BYTE: |
| 315 | case GL_UNSIGNED_SHORT_5_6_5: |
| 316 | case GL_FLOAT: |
| 317 | case GL_HALF_FLOAT_OES: |
| 318 | break; |
| 319 | default: |
| 320 | return gl::error(GL_INVALID_OPERATION, false); |
| 321 | } |
| 322 | break; |
| 323 | case GL_RGBA: |
| 324 | switch (type) |
| 325 | { |
| 326 | case GL_UNSIGNED_BYTE: |
| 327 | case GL_UNSIGNED_SHORT_4_4_4_4: |
| 328 | case GL_UNSIGNED_SHORT_5_5_5_1: |
| 329 | case GL_FLOAT: |
| 330 | case GL_HALF_FLOAT_OES: |
| 331 | break; |
| 332 | default: |
| 333 | return gl::error(GL_INVALID_OPERATION, false); |
| 334 | } |
| 335 | break; |
| 336 | case GL_BGRA_EXT: |
| 337 | switch (type) |
| 338 | { |
| 339 | case GL_UNSIGNED_BYTE: |
| 340 | break; |
| 341 | default: |
| 342 | return gl::error(GL_INVALID_OPERATION, false); |
| 343 | } |
| 344 | break; |
Geoff Lang | 05b0502 | 2014-06-11 15:31:45 -0400 | [diff] [blame] | 345 | case GL_SRGB_EXT: |
| 346 | case GL_SRGB_ALPHA_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 347 | if (!context->getExtensions().sRGB) |
Geoff Lang | 05b0502 | 2014-06-11 15:31:45 -0400 | [diff] [blame] | 348 | { |
| 349 | return gl::error(GL_INVALID_ENUM, false); |
| 350 | } |
| 351 | switch (type) |
| 352 | { |
| 353 | case GL_UNSIGNED_BYTE: |
| 354 | break; |
| 355 | default: |
| 356 | return gl::error(GL_INVALID_OPERATION, false); |
| 357 | } |
| 358 | break; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 359 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: // error cases for compressed textures are handled below |
| 360 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| 361 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| 362 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| 363 | break; |
| 364 | case GL_DEPTH_COMPONENT: |
| 365 | switch (type) |
| 366 | { |
| 367 | case GL_UNSIGNED_SHORT: |
| 368 | case GL_UNSIGNED_INT: |
| 369 | break; |
| 370 | default: |
| 371 | return gl::error(GL_INVALID_OPERATION, false); |
| 372 | } |
| 373 | break; |
| 374 | case GL_DEPTH_STENCIL_OES: |
| 375 | switch (type) |
| 376 | { |
| 377 | case GL_UNSIGNED_INT_24_8_OES: |
| 378 | break; |
| 379 | default: |
| 380 | return gl::error(GL_INVALID_OPERATION, false); |
| 381 | } |
| 382 | break; |
| 383 | default: |
| 384 | return gl::error(GL_INVALID_ENUM, false); |
| 385 | } |
| 386 | |
| 387 | switch (format) |
| 388 | { |
| 389 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| 390 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 391 | if (context->getExtensions().textureCompressionDXT1) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 392 | { |
| 393 | return gl::error(GL_INVALID_OPERATION, false); |
| 394 | } |
| 395 | else |
| 396 | { |
| 397 | return gl::error(GL_INVALID_ENUM, false); |
| 398 | } |
| 399 | break; |
| 400 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 401 | if (context->getExtensions().textureCompressionDXT3) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 402 | { |
| 403 | return gl::error(GL_INVALID_OPERATION, false); |
| 404 | } |
| 405 | else |
| 406 | { |
| 407 | return gl::error(GL_INVALID_ENUM, false); |
| 408 | } |
| 409 | break; |
| 410 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 411 | if (context->getExtensions().textureCompressionDXT5) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 412 | { |
| 413 | return gl::error(GL_INVALID_OPERATION, false); |
| 414 | } |
| 415 | else |
| 416 | { |
| 417 | return gl::error(GL_INVALID_ENUM, false); |
| 418 | } |
| 419 | break; |
| 420 | case GL_DEPTH_COMPONENT: |
| 421 | case GL_DEPTH_STENCIL_OES: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 422 | if (!context->getExtensions().depthTextures) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 423 | { |
| 424 | return gl::error(GL_INVALID_VALUE, false); |
| 425 | } |
| 426 | if (target != GL_TEXTURE_2D) |
| 427 | { |
| 428 | return gl::error(GL_INVALID_OPERATION, false); |
| 429 | } |
| 430 | // OES_depth_texture supports loading depth data and multiple levels, |
| 431 | // but ANGLE_depth_texture does not |
| 432 | if (pixels != NULL || level != 0) |
| 433 | { |
| 434 | return gl::error(GL_INVALID_OPERATION, false); |
| 435 | } |
| 436 | break; |
| 437 | default: |
| 438 | break; |
| 439 | } |
| 440 | |
| 441 | if (type == GL_FLOAT) |
| 442 | { |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 443 | if (!context->getExtensions().textureFloat) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 444 | { |
| 445 | return gl::error(GL_INVALID_ENUM, false); |
| 446 | } |
| 447 | } |
| 448 | else if (type == GL_HALF_FLOAT_OES) |
| 449 | { |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 450 | if (!context->getExtensions().textureHalfFloat) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 451 | { |
| 452 | return gl::error(GL_INVALID_ENUM, false); |
| 453 | } |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | return true; |
| 458 | } |
| 459 | |
| 460 | |
| 461 | |
Geoff Lang | 34dbb6f | 2013-08-05 15:05:47 -0400 | [diff] [blame] | 462 | bool ValidateES2CopyTexImageParameters(gl::Context* context, GLenum target, GLint level, GLenum internalformat, bool isSubImage, |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 463 | GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height, |
| 464 | GLint border) |
| 465 | { |
Jamie Madill | 560a8d8 | 2014-05-21 13:06:20 -0400 | [diff] [blame] | 466 | GLenum textureInternalFormat = GL_NONE; |
Shannon Woods | 4dfed83 | 2014-03-17 20:03:39 -0400 | [diff] [blame] | 467 | |
Jamie Madill | 560a8d8 | 2014-05-21 13:06:20 -0400 | [diff] [blame] | 468 | if (!ValidateCopyTexImageParametersBase(context, target, level, internalformat, isSubImage, |
| 469 | xoffset, yoffset, 0, x, y, width, height, border, &textureInternalFormat)) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 470 | { |
Jamie Madill | 560a8d8 | 2014-05-21 13:06:20 -0400 | [diff] [blame] | 471 | return false; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 472 | } |
| 473 | |
Shannon Woods | 53a94a8 | 2014-06-24 15:20:36 -0400 | [diff] [blame] | 474 | gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer(); |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 475 | GLenum colorbufferFormat = framebuffer->getReadColorbuffer()->getInternalFormat(); |
Geoff Lang | 5d60138 | 2014-07-22 15:14:06 -0400 | [diff] [blame^] | 476 | GLenum textureFormat = gl::GetInternalFormatInfo(textureInternalFormat).format; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 477 | |
| 478 | // [OpenGL ES 2.0.24] table 3.9 |
| 479 | if (isSubImage) |
| 480 | { |
| 481 | switch (textureFormat) |
| 482 | { |
| 483 | case GL_ALPHA: |
| 484 | if (colorbufferFormat != GL_ALPHA8_EXT && |
| 485 | colorbufferFormat != GL_RGBA4 && |
| 486 | colorbufferFormat != GL_RGB5_A1 && |
| 487 | colorbufferFormat != GL_RGBA8_OES) |
| 488 | { |
| 489 | return gl::error(GL_INVALID_OPERATION, false); |
| 490 | } |
| 491 | break; |
| 492 | case GL_LUMINANCE: |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 493 | if (colorbufferFormat != GL_R8_EXT && |
| 494 | colorbufferFormat != GL_RG8_EXT && |
| 495 | colorbufferFormat != GL_RGB565 && |
| 496 | colorbufferFormat != GL_RGB8_OES && |
| 497 | colorbufferFormat != GL_RGBA4 && |
| 498 | colorbufferFormat != GL_RGB5_A1 && |
| 499 | colorbufferFormat != GL_RGBA8_OES) |
| 500 | { |
| 501 | return gl::error(GL_INVALID_OPERATION, false); |
| 502 | } |
| 503 | break; |
| 504 | case GL_RED_EXT: |
| 505 | if (colorbufferFormat != GL_R8_EXT && |
| 506 | colorbufferFormat != GL_RG8_EXT && |
| 507 | colorbufferFormat != GL_RGB565 && |
| 508 | colorbufferFormat != GL_RGB8_OES && |
| 509 | colorbufferFormat != GL_RGBA4 && |
| 510 | colorbufferFormat != GL_RGB5_A1 && |
| 511 | colorbufferFormat != GL_RGBA8_OES) |
| 512 | { |
| 513 | return gl::error(GL_INVALID_OPERATION, false); |
| 514 | } |
| 515 | break; |
| 516 | case GL_RG_EXT: |
| 517 | if (colorbufferFormat != GL_RG8_EXT && |
| 518 | colorbufferFormat != GL_RGB565 && |
| 519 | colorbufferFormat != GL_RGB8_OES && |
| 520 | colorbufferFormat != GL_RGBA4 && |
| 521 | colorbufferFormat != GL_RGB5_A1 && |
| 522 | colorbufferFormat != GL_RGBA8_OES) |
| 523 | { |
| 524 | return gl::error(GL_INVALID_OPERATION, false); |
| 525 | } |
| 526 | break; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 527 | case GL_RGB: |
| 528 | if (colorbufferFormat != GL_RGB565 && |
| 529 | colorbufferFormat != GL_RGB8_OES && |
| 530 | colorbufferFormat != GL_RGBA4 && |
| 531 | colorbufferFormat != GL_RGB5_A1 && |
| 532 | colorbufferFormat != GL_RGBA8_OES) |
| 533 | { |
| 534 | return gl::error(GL_INVALID_OPERATION, false); |
| 535 | } |
| 536 | break; |
| 537 | case GL_LUMINANCE_ALPHA: |
| 538 | case GL_RGBA: |
| 539 | if (colorbufferFormat != GL_RGBA4 && |
| 540 | colorbufferFormat != GL_RGB5_A1 && |
| 541 | colorbufferFormat != GL_RGBA8_OES) |
| 542 | { |
| 543 | return gl::error(GL_INVALID_OPERATION, false); |
| 544 | } |
| 545 | break; |
| 546 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| 547 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| 548 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| 549 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| 550 | return gl::error(GL_INVALID_OPERATION, false); |
| 551 | case GL_DEPTH_COMPONENT: |
| 552 | case GL_DEPTH_STENCIL_OES: |
| 553 | return gl::error(GL_INVALID_OPERATION, false); |
| 554 | default: |
| 555 | return gl::error(GL_INVALID_OPERATION, false); |
| 556 | } |
| 557 | } |
| 558 | else |
| 559 | { |
| 560 | switch (internalformat) |
| 561 | { |
| 562 | case GL_ALPHA: |
| 563 | if (colorbufferFormat != GL_ALPHA8_EXT && |
| 564 | colorbufferFormat != GL_RGBA4 && |
| 565 | colorbufferFormat != GL_RGB5_A1 && |
| 566 | colorbufferFormat != GL_BGRA8_EXT && |
| 567 | colorbufferFormat != GL_RGBA8_OES) |
| 568 | { |
| 569 | return gl::error(GL_INVALID_OPERATION, false); |
| 570 | } |
| 571 | break; |
| 572 | case GL_LUMINANCE: |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 573 | if (colorbufferFormat != GL_R8_EXT && |
| 574 | colorbufferFormat != GL_RG8_EXT && |
| 575 | colorbufferFormat != GL_RGB565 && |
| 576 | colorbufferFormat != GL_RGB8_OES && |
| 577 | colorbufferFormat != GL_RGBA4 && |
| 578 | colorbufferFormat != GL_RGB5_A1 && |
| 579 | colorbufferFormat != GL_BGRA8_EXT && |
| 580 | colorbufferFormat != GL_RGBA8_OES) |
| 581 | { |
| 582 | return gl::error(GL_INVALID_OPERATION, false); |
| 583 | } |
| 584 | break; |
| 585 | case GL_RED_EXT: |
| 586 | if (colorbufferFormat != GL_R8_EXT && |
| 587 | colorbufferFormat != GL_RG8_EXT && |
| 588 | colorbufferFormat != GL_RGB565 && |
| 589 | colorbufferFormat != GL_RGB8_OES && |
| 590 | colorbufferFormat != GL_RGBA4 && |
| 591 | colorbufferFormat != GL_RGB5_A1 && |
| 592 | colorbufferFormat != GL_BGRA8_EXT && |
| 593 | colorbufferFormat != GL_RGBA8_OES) |
| 594 | { |
| 595 | return gl::error(GL_INVALID_OPERATION, false); |
| 596 | } |
| 597 | break; |
| 598 | case GL_RG_EXT: |
| 599 | if (colorbufferFormat != GL_RG8_EXT && |
| 600 | colorbufferFormat != GL_RGB565 && |
| 601 | colorbufferFormat != GL_RGB8_OES && |
| 602 | colorbufferFormat != GL_RGBA4 && |
| 603 | colorbufferFormat != GL_RGB5_A1 && |
| 604 | colorbufferFormat != GL_BGRA8_EXT && |
| 605 | colorbufferFormat != GL_RGBA8_OES) |
| 606 | { |
| 607 | return gl::error(GL_INVALID_OPERATION, false); |
| 608 | } |
| 609 | break; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 610 | case GL_RGB: |
| 611 | if (colorbufferFormat != GL_RGB565 && |
| 612 | colorbufferFormat != GL_RGB8_OES && |
| 613 | colorbufferFormat != GL_RGBA4 && |
| 614 | colorbufferFormat != GL_RGB5_A1 && |
| 615 | colorbufferFormat != GL_BGRA8_EXT && |
| 616 | colorbufferFormat != GL_RGBA8_OES) |
| 617 | { |
| 618 | return gl::error(GL_INVALID_OPERATION, false); |
| 619 | } |
| 620 | break; |
| 621 | case GL_LUMINANCE_ALPHA: |
| 622 | case GL_RGBA: |
| 623 | if (colorbufferFormat != GL_RGBA4 && |
| 624 | colorbufferFormat != GL_RGB5_A1 && |
| 625 | colorbufferFormat != GL_BGRA8_EXT && |
| 626 | colorbufferFormat != GL_RGBA8_OES) |
| 627 | { |
| 628 | return gl::error(GL_INVALID_OPERATION, false); |
| 629 | } |
| 630 | break; |
| 631 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| 632 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 633 | if (context->getExtensions().textureCompressionDXT1) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 634 | { |
| 635 | return gl::error(GL_INVALID_OPERATION, false); |
| 636 | } |
| 637 | else |
| 638 | { |
| 639 | return gl::error(GL_INVALID_ENUM, false); |
| 640 | } |
| 641 | break; |
| 642 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 643 | if (context->getExtensions().textureCompressionDXT3) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 644 | { |
| 645 | return gl::error(GL_INVALID_OPERATION, false); |
| 646 | } |
| 647 | else |
| 648 | { |
| 649 | return gl::error(GL_INVALID_ENUM, false); |
| 650 | } |
| 651 | break; |
| 652 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 653 | if (context->getExtensions().textureCompressionDXT5) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 654 | { |
| 655 | return gl::error(GL_INVALID_OPERATION, false); |
| 656 | } |
| 657 | else |
| 658 | { |
| 659 | return gl::error(GL_INVALID_ENUM, false); |
| 660 | } |
| 661 | break; |
| 662 | case GL_DEPTH_COMPONENT: |
| 663 | case GL_DEPTH_COMPONENT16: |
| 664 | case GL_DEPTH_COMPONENT32_OES: |
| 665 | case GL_DEPTH_STENCIL_OES: |
| 666 | case GL_DEPTH24_STENCIL8_OES: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 667 | if (context->getExtensions().depthTextures) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 668 | { |
| 669 | return gl::error(GL_INVALID_OPERATION, false); |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | return gl::error(GL_INVALID_ENUM, false); |
| 674 | } |
| 675 | default: |
| 676 | return gl::error(GL_INVALID_ENUM, false); |
| 677 | } |
| 678 | } |
| 679 | |
Geoff Lang | 784a8fd | 2013-09-24 12:33:16 -0400 | [diff] [blame] | 680 | // If width or height is zero, it is a no-op. Return false without setting an error. |
| 681 | return (width > 0 && height > 0); |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 682 | } |
| 683 | |
Geoff Lang | 34dbb6f | 2013-08-05 15:05:47 -0400 | [diff] [blame] | 684 | bool ValidateES2TexStorageParameters(gl::Context *context, GLenum target, GLsizei levels, GLenum internalformat, |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 685 | GLsizei width, GLsizei height) |
| 686 | { |
| 687 | if (target != GL_TEXTURE_2D && target != GL_TEXTURE_CUBE_MAP) |
| 688 | { |
| 689 | return gl::error(GL_INVALID_ENUM, false); |
| 690 | } |
| 691 | |
| 692 | if (width < 1 || height < 1 || levels < 1) |
| 693 | { |
| 694 | return gl::error(GL_INVALID_VALUE, false); |
| 695 | } |
| 696 | |
| 697 | if (target == GL_TEXTURE_CUBE_MAP && width != height) |
| 698 | { |
| 699 | return gl::error(GL_INVALID_VALUE, false); |
| 700 | } |
| 701 | |
| 702 | if (levels != 1 && levels != gl::log2(std::max(width, height)) + 1) |
| 703 | { |
| 704 | return gl::error(GL_INVALID_OPERATION, false); |
| 705 | } |
| 706 | |
Geoff Lang | 5d60138 | 2014-07-22 15:14:06 -0400 | [diff] [blame^] | 707 | const gl::InternalFormat &formatInfo = gl::GetInternalFormatInfo(internalformat); |
| 708 | if (formatInfo.format == GL_NONE || formatInfo.type == GL_NONE) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 709 | { |
| 710 | return gl::error(GL_INVALID_ENUM, false); |
| 711 | } |
| 712 | |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 713 | const gl::Caps &caps = context->getCaps(); |
| 714 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 715 | switch (target) |
| 716 | { |
| 717 | case GL_TEXTURE_2D: |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 718 | if (static_cast<GLuint>(width) > caps.max2DTextureSize || |
| 719 | static_cast<GLuint>(height) > caps.max2DTextureSize) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 720 | { |
| 721 | return gl::error(GL_INVALID_VALUE, false); |
| 722 | } |
| 723 | break; |
| 724 | case GL_TEXTURE_CUBE_MAP: |
Geoff Lang | aae65a4 | 2014-05-26 12:43:44 -0400 | [diff] [blame] | 725 | if (static_cast<GLuint>(width) > caps.maxCubeMapTextureSize || |
| 726 | static_cast<GLuint>(height) > caps.maxCubeMapTextureSize) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 727 | { |
| 728 | return gl::error(GL_INVALID_VALUE, false); |
| 729 | } |
| 730 | break; |
| 731 | default: |
| 732 | return gl::error(GL_INVALID_ENUM, false); |
| 733 | } |
| 734 | |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 735 | if (levels != 1 && !context->getExtensions().textureNPOT) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 736 | { |
| 737 | if (!gl::isPow2(width) || !gl::isPow2(height)) |
| 738 | { |
| 739 | return gl::error(GL_INVALID_OPERATION, false); |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | switch (internalformat) |
| 744 | { |
| 745 | case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| 746 | case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 747 | if (!context->getExtensions().textureCompressionDXT1) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 748 | { |
| 749 | return gl::error(GL_INVALID_ENUM, false); |
| 750 | } |
| 751 | break; |
| 752 | case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 753 | if (!context->getExtensions().textureCompressionDXT3) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 754 | { |
| 755 | return gl::error(GL_INVALID_ENUM, false); |
| 756 | } |
| 757 | break; |
| 758 | case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 759 | if (!context->getExtensions().textureCompressionDXT5) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 760 | { |
| 761 | return gl::error(GL_INVALID_ENUM, false); |
| 762 | } |
| 763 | break; |
| 764 | case GL_RGBA32F_EXT: |
| 765 | case GL_RGB32F_EXT: |
| 766 | case GL_ALPHA32F_EXT: |
| 767 | case GL_LUMINANCE32F_EXT: |
| 768 | case GL_LUMINANCE_ALPHA32F_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 769 | if (!context->getExtensions().textureFloat) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 770 | { |
| 771 | return gl::error(GL_INVALID_ENUM, false); |
| 772 | } |
| 773 | break; |
| 774 | case GL_RGBA16F_EXT: |
| 775 | case GL_RGB16F_EXT: |
| 776 | case GL_ALPHA16F_EXT: |
| 777 | case GL_LUMINANCE16F_EXT: |
| 778 | case GL_LUMINANCE_ALPHA16F_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 779 | if (!context->getExtensions().textureHalfFloat) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 780 | { |
| 781 | return gl::error(GL_INVALID_ENUM, false); |
| 782 | } |
| 783 | break; |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 784 | case GL_R8_EXT: |
| 785 | case GL_RG8_EXT: |
| 786 | case GL_R16F_EXT: |
| 787 | case GL_RG16F_EXT: |
| 788 | case GL_R32F_EXT: |
| 789 | case GL_RG32F_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 790 | if (!context->getExtensions().textureRG) |
Geoff Lang | 632192d | 2013-10-04 13:40:46 -0400 | [diff] [blame] | 791 | { |
| 792 | return gl::error(GL_INVALID_ENUM, false); |
| 793 | } |
| 794 | break; |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 795 | case GL_DEPTH_COMPONENT16: |
| 796 | case GL_DEPTH_COMPONENT32_OES: |
| 797 | case GL_DEPTH24_STENCIL8_OES: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 798 | if (!context->getExtensions().depthTextures) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 799 | { |
| 800 | return gl::error(GL_INVALID_ENUM, false); |
| 801 | } |
| 802 | if (target != GL_TEXTURE_2D) |
| 803 | { |
| 804 | return gl::error(GL_INVALID_OPERATION, false); |
| 805 | } |
| 806 | // ANGLE_depth_texture only supports 1-level textures |
| 807 | if (levels != 1) |
| 808 | { |
| 809 | return gl::error(GL_INVALID_OPERATION, false); |
| 810 | } |
| 811 | break; |
| 812 | default: |
| 813 | break; |
| 814 | } |
| 815 | |
| 816 | gl::Texture *texture = NULL; |
| 817 | switch(target) |
| 818 | { |
| 819 | case GL_TEXTURE_2D: |
| 820 | texture = context->getTexture2D(); |
| 821 | break; |
| 822 | case GL_TEXTURE_CUBE_MAP: |
| 823 | texture = context->getTextureCubeMap(); |
| 824 | break; |
| 825 | default: |
| 826 | UNREACHABLE(); |
| 827 | } |
| 828 | |
| 829 | if (!texture || texture->id() == 0) |
| 830 | { |
| 831 | return gl::error(GL_INVALID_OPERATION, false); |
| 832 | } |
| 833 | |
| 834 | if (texture->isImmutable()) |
| 835 | { |
| 836 | return gl::error(GL_INVALID_OPERATION, false); |
| 837 | } |
| 838 | |
| 839 | return true; |
| 840 | } |
| 841 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 842 | // check for combinations of format and type that are valid for ReadPixels |
Geoff Lang | bdc9b2f | 2014-04-16 14:41:54 -0400 | [diff] [blame] | 843 | bool ValidES2ReadFormatType(gl::Context *context, GLenum format, GLenum type) |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 844 | { |
| 845 | switch (format) |
| 846 | { |
| 847 | case GL_RGBA: |
| 848 | switch (type) |
| 849 | { |
| 850 | case GL_UNSIGNED_BYTE: |
| 851 | break; |
| 852 | default: |
| 853 | return false; |
| 854 | } |
| 855 | break; |
| 856 | case GL_BGRA_EXT: |
| 857 | switch (type) |
| 858 | { |
| 859 | case GL_UNSIGNED_BYTE: |
| 860 | case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: |
| 861 | case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: |
| 862 | break; |
| 863 | default: |
| 864 | return false; |
| 865 | } |
| 866 | break; |
Geoff Lang | bdc9b2f | 2014-04-16 14:41:54 -0400 | [diff] [blame] | 867 | case GL_RG_EXT: |
| 868 | case GL_RED_EXT: |
Geoff Lang | c0b9ef4 | 2014-07-02 10:02:37 -0400 | [diff] [blame] | 869 | if (!context->getExtensions().textureRG) |
Geoff Lang | bdc9b2f | 2014-04-16 14:41:54 -0400 | [diff] [blame] | 870 | { |
| 871 | return false; |
| 872 | } |
| 873 | switch (type) |
| 874 | { |
| 875 | case GL_UNSIGNED_BYTE: |
| 876 | break; |
| 877 | default: |
| 878 | return false; |
| 879 | } |
| 880 | break; |
| 881 | |
Geoff Lang | e8ebe7f | 2013-08-05 15:03:13 -0400 | [diff] [blame] | 882 | default: |
| 883 | return false; |
| 884 | } |
| 885 | return true; |
| 886 | } |
| 887 | |
| 888 | } |