colortab.c revision 95027a00870bc1d12ea24dfb092a0cad6cbd5035
1/* 2 * Mesa 3-D graphics library 3 * Version: 7.1 4 * 5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26#include "glheader.h" 27#include "bufferobj.h" 28#include "colortab.h" 29#include "context.h" 30#include "image.h" 31#include "macros.h" 32#include "state.h" 33#include "teximage.h" 34 35 36/** 37 * Given an internalFormat token passed to glColorTable, 38 * return the corresponding base format. 39 * Return -1 if invalid token. 40 */ 41static GLint 42base_colortab_format( GLenum format ) 43{ 44 switch (format) { 45 case GL_ALPHA: 46 case GL_ALPHA4: 47 case GL_ALPHA8: 48 case GL_ALPHA12: 49 case GL_ALPHA16: 50 return GL_ALPHA; 51 case GL_LUMINANCE: 52 case GL_LUMINANCE4: 53 case GL_LUMINANCE8: 54 case GL_LUMINANCE12: 55 case GL_LUMINANCE16: 56 return GL_LUMINANCE; 57 case GL_LUMINANCE_ALPHA: 58 case GL_LUMINANCE4_ALPHA4: 59 case GL_LUMINANCE6_ALPHA2: 60 case GL_LUMINANCE8_ALPHA8: 61 case GL_LUMINANCE12_ALPHA4: 62 case GL_LUMINANCE12_ALPHA12: 63 case GL_LUMINANCE16_ALPHA16: 64 return GL_LUMINANCE_ALPHA; 65 case GL_INTENSITY: 66 case GL_INTENSITY4: 67 case GL_INTENSITY8: 68 case GL_INTENSITY12: 69 case GL_INTENSITY16: 70 return GL_INTENSITY; 71 case GL_RGB: 72 case GL_R3_G3_B2: 73 case GL_RGB4: 74 case GL_RGB5: 75 case GL_RGB8: 76 case GL_RGB10: 77 case GL_RGB12: 78 case GL_RGB16: 79 return GL_RGB; 80 case GL_RGBA: 81 case GL_RGBA2: 82 case GL_RGBA4: 83 case GL_RGB5_A1: 84 case GL_RGBA8: 85 case GL_RGB10_A2: 86 case GL_RGBA12: 87 case GL_RGBA16: 88 return GL_RGBA; 89 default: 90 return -1; /* error */ 91 } 92} 93 94 95 96/** 97 * Examine table's format and set the component sizes accordingly. 98 */ 99static void 100set_component_sizes( struct gl_color_table *table ) 101{ 102 /* assuming the ubyte table */ 103 const GLubyte sz = 8; 104 105 switch (table->_BaseFormat) { 106 case GL_ALPHA: 107 table->RedSize = 0; 108 table->GreenSize = 0; 109 table->BlueSize = 0; 110 table->AlphaSize = sz; 111 table->IntensitySize = 0; 112 table->LuminanceSize = 0; 113 break; 114 case GL_LUMINANCE: 115 table->RedSize = 0; 116 table->GreenSize = 0; 117 table->BlueSize = 0; 118 table->AlphaSize = 0; 119 table->IntensitySize = 0; 120 table->LuminanceSize = sz; 121 break; 122 case GL_LUMINANCE_ALPHA: 123 table->RedSize = 0; 124 table->GreenSize = 0; 125 table->BlueSize = 0; 126 table->AlphaSize = sz; 127 table->IntensitySize = 0; 128 table->LuminanceSize = sz; 129 break; 130 case GL_INTENSITY: 131 table->RedSize = 0; 132 table->GreenSize = 0; 133 table->BlueSize = 0; 134 table->AlphaSize = 0; 135 table->IntensitySize = sz; 136 table->LuminanceSize = 0; 137 break; 138 case GL_RGB: 139 table->RedSize = sz; 140 table->GreenSize = sz; 141 table->BlueSize = sz; 142 table->AlphaSize = 0; 143 table->IntensitySize = 0; 144 table->LuminanceSize = 0; 145 break; 146 case GL_RGBA: 147 table->RedSize = sz; 148 table->GreenSize = sz; 149 table->BlueSize = sz; 150 table->AlphaSize = sz; 151 table->IntensitySize = 0; 152 table->LuminanceSize = 0; 153 break; 154 default: 155 _mesa_problem(NULL, "unexpected format in set_component_sizes"); 156 } 157} 158 159 160 161/** 162 * Update/replace all or part of a color table. Helper function 163 * used by _mesa_ColorTable() and _mesa_ColorSubTable(). 164 * The table->Table buffer should already be allocated. 165 * \param start first entry to update 166 * \param count number of entries to update 167 * \param format format of user-provided table data 168 * \param type datatype of user-provided table data 169 * \param data user-provided table data 170 * \param [rgba]Scale - RGBA scale factors 171 * \param [rgba]Bias - RGBA bias factors 172 */ 173static void 174store_colortable_entries(GLcontext *ctx, struct gl_color_table *table, 175 GLsizei start, GLsizei count, 176 GLenum format, GLenum type, const GLvoid *data, 177 GLfloat rScale, GLfloat rBias, 178 GLfloat gScale, GLfloat gBias, 179 GLfloat bScale, GLfloat bBias, 180 GLfloat aScale, GLfloat aBias) 181{ 182 data = _mesa_map_validate_pbo_source(ctx, 183 1, &ctx->Unpack, count, 1, 1, 184 format, type, data, 185 "glColor[Sub]Table"); 186 if (!data) 187 return; 188 189 { 190 /* convert user-provided data to GLfloat values */ 191 GLfloat tempTab[MAX_COLOR_TABLE_SIZE * 4]; 192 GLfloat *tableF; 193 GLint i; 194 195 _mesa_unpack_color_span_float(ctx, 196 count, /* number of pixels */ 197 table->_BaseFormat, /* dest format */ 198 tempTab, /* dest address */ 199 format, type, /* src format/type */ 200 data, /* src data */ 201 &ctx->Unpack, 202 IMAGE_CLAMP_BIT); /* transfer ops */ 203 204 /* the destination */ 205 tableF = table->TableF; 206 207 /* Apply scale & bias & clamp now */ 208 switch (table->_BaseFormat) { 209 case GL_INTENSITY: 210 for (i = 0; i < count; i++) { 211 GLuint j = start + i; 212 tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F); 213 } 214 break; 215 case GL_LUMINANCE: 216 for (i = 0; i < count; i++) { 217 GLuint j = start + i; 218 tableF[j] = CLAMP(tempTab[i] * rScale + rBias, 0.0F, 1.0F); 219 } 220 break; 221 case GL_ALPHA: 222 for (i = 0; i < count; i++) { 223 GLuint j = start + i; 224 tableF[j] = CLAMP(tempTab[i] * aScale + aBias, 0.0F, 1.0F); 225 } 226 break; 227 case GL_LUMINANCE_ALPHA: 228 for (i = 0; i < count; i++) { 229 GLuint j = start + i; 230 tableF[j*2+0] = CLAMP(tempTab[i*2+0] * rScale + rBias, 0.0F, 1.0F); 231 tableF[j*2+1] = CLAMP(tempTab[i*2+1] * aScale + aBias, 0.0F, 1.0F); 232 } 233 break; 234 case GL_RGB: 235 for (i = 0; i < count; i++) { 236 GLuint j = start + i; 237 tableF[j*3+0] = CLAMP(tempTab[i*3+0] * rScale + rBias, 0.0F, 1.0F); 238 tableF[j*3+1] = CLAMP(tempTab[i*3+1] * gScale + gBias, 0.0F, 1.0F); 239 tableF[j*3+2] = CLAMP(tempTab[i*3+2] * bScale + bBias, 0.0F, 1.0F); 240 } 241 break; 242 case GL_RGBA: 243 for (i = 0; i < count; i++) { 244 GLuint j = start + i; 245 tableF[j*4+0] = CLAMP(tempTab[i*4+0] * rScale + rBias, 0.0F, 1.0F); 246 tableF[j*4+1] = CLAMP(tempTab[i*4+1] * gScale + gBias, 0.0F, 1.0F); 247 tableF[j*4+2] = CLAMP(tempTab[i*4+2] * bScale + bBias, 0.0F, 1.0F); 248 tableF[j*4+3] = CLAMP(tempTab[i*4+3] * aScale + aBias, 0.0F, 1.0F); 249 } 250 break; 251 default: 252 _mesa_problem(ctx, "Bad format in store_colortable_entries"); 253 return; 254 } 255 } 256 257 /* update the ubyte table */ 258 { 259 const GLint comps = _mesa_components_in_format(table->_BaseFormat); 260 const GLfloat *tableF = table->TableF + start * comps; 261 GLubyte *tableUB = table->TableUB + start * comps; 262 GLint i; 263 for (i = 0; i < count * comps; i++) { 264 CLAMPED_FLOAT_TO_UBYTE(tableUB[i], tableF[i]); 265 } 266 } 267 268 _mesa_unmap_pbo_source(ctx, &ctx->Unpack); 269} 270 271 272 273void GLAPIENTRY 274_mesa_ColorTable( GLenum target, GLenum internalFormat, 275 GLsizei width, GLenum format, GLenum type, 276 const GLvoid *data ) 277{ 278 static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; 279 static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; 280 GET_CURRENT_CONTEXT(ctx); 281 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 282 struct gl_texture_object *texObj = NULL; 283 struct gl_color_table *table = NULL; 284 GLboolean proxy = GL_FALSE; 285 GLint baseFormat; 286 const GLfloat *scale = one, *bias = zero; 287 GLint comps; 288 289 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */ 290 291 switch (target) { 292 case GL_SHARED_TEXTURE_PALETTE_EXT: 293 table = &ctx->Texture.Palette; 294 break; 295 case GL_COLOR_TABLE: 296 table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION]; 297 scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]; 298 bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]; 299 break; 300 case GL_PROXY_COLOR_TABLE: 301 table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION]; 302 proxy = GL_TRUE; 303 break; 304 case GL_TEXTURE_COLOR_TABLE_SGI: 305 if (!ctx->Extensions.SGI_texture_color_table) { 306 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)"); 307 return; 308 } 309 table = &(texUnit->ColorTable); 310 scale = ctx->Pixel.TextureColorTableScale; 311 bias = ctx->Pixel.TextureColorTableBias; 312 break; 313 case GL_PROXY_TEXTURE_COLOR_TABLE_SGI: 314 if (!ctx->Extensions.SGI_texture_color_table) { 315 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)"); 316 return; 317 } 318 table = &(texUnit->ProxyColorTable); 319 proxy = GL_TRUE; 320 break; 321 case GL_POST_CONVOLUTION_COLOR_TABLE: 322 table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION]; 323 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]; 324 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]; 325 break; 326 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE: 327 table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION]; 328 proxy = GL_TRUE; 329 break; 330 case GL_POST_COLOR_MATRIX_COLOR_TABLE: 331 table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX]; 332 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]; 333 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX]; 334 break; 335 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE: 336 table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX]; 337 proxy = GL_TRUE; 338 break; 339 default: 340 /* try texture targets */ 341 { 342 struct gl_texture_object *texobj 343 = _mesa_select_tex_object(ctx, texUnit, target); 344 if (texobj) { 345 table = &texobj->Palette; 346 proxy = _mesa_is_proxy_texture(target); 347 } 348 else { 349 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(target)"); 350 return; 351 } 352 } 353 } 354 355 assert(table); 356 357 if (!_mesa_is_legal_format_and_type(ctx, format, type) || 358 format == GL_INTENSITY) { 359 _mesa_error(ctx, GL_INVALID_OPERATION, "glColorTable(format or type)"); 360 return; 361 } 362 363 baseFormat = base_colortab_format(internalFormat); 364 if (baseFormat < 0) { 365 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTable(internalFormat)"); 366 return; 367 } 368 369 if (width < 0 || (width != 0 && !_mesa_is_pow_two(width))) { 370 /* error */ 371 if (proxy) { 372 table->Size = 0; 373 table->InternalFormat = (GLenum) 0; 374 table->_BaseFormat = (GLenum) 0; 375 } 376 else { 377 _mesa_error(ctx, GL_INVALID_VALUE, "glColorTable(width=%d)", width); 378 } 379 return; 380 } 381 382 if (width > (GLsizei) ctx->Const.MaxColorTableSize) { 383 if (proxy) { 384 table->Size = 0; 385 table->InternalFormat = (GLenum) 0; 386 table->_BaseFormat = (GLenum) 0; 387 } 388 else { 389 _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glColorTable(width)"); 390 } 391 return; 392 } 393 394 table->Size = width; 395 table->InternalFormat = internalFormat; 396 table->_BaseFormat = (GLenum) baseFormat; 397 398 comps = _mesa_components_in_format(table->_BaseFormat); 399 assert(comps > 0); /* error should have been caught sooner */ 400 401 if (!proxy) { 402 _mesa_free_colortable_data(table); 403 404 if (width > 0) { 405 table->TableF = (GLfloat *) _mesa_malloc(comps * width * sizeof(GLfloat)); 406 table->TableUB = (GLubyte *) _mesa_malloc(comps * width * sizeof(GLubyte)); 407 408 if (!table->TableF || !table->TableUB) { 409 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glColorTable"); 410 return; 411 } 412 413 store_colortable_entries(ctx, table, 414 0, width, /* start, count */ 415 format, type, data, 416 scale[0], bias[0], 417 scale[1], bias[1], 418 scale[2], bias[2], 419 scale[3], bias[3]); 420 } 421 } /* proxy */ 422 423 /* do this after the table's Type and Format are set */ 424 set_component_sizes(table); 425 426 if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) { 427 /* texture object palette, texObj==NULL means the shared palette */ 428 if (ctx->Driver.UpdateTexturePalette) { 429 (*ctx->Driver.UpdateTexturePalette)( ctx, texObj ); 430 } 431 } 432 433 ctx->NewState |= _NEW_PIXEL; 434} 435 436 437 438void GLAPIENTRY 439_mesa_ColorSubTable( GLenum target, GLsizei start, 440 GLsizei count, GLenum format, GLenum type, 441 const GLvoid *data ) 442{ 443 static const GLfloat one[4] = { 1.0, 1.0, 1.0, 1.0 }; 444 static const GLfloat zero[4] = { 0.0, 0.0, 0.0, 0.0 }; 445 GET_CURRENT_CONTEXT(ctx); 446 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 447 struct gl_texture_object *texObj = NULL; 448 struct gl_color_table *table = NULL; 449 const GLfloat *scale = one, *bias = zero; 450 451 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 452 453 switch (target) { 454 case GL_SHARED_TEXTURE_PALETTE_EXT: 455 table = &ctx->Texture.Palette; 456 break; 457 case GL_COLOR_TABLE: 458 table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION]; 459 scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]; 460 bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]; 461 break; 462 case GL_TEXTURE_COLOR_TABLE_SGI: 463 if (!ctx->Extensions.SGI_texture_color_table) { 464 _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)"); 465 return; 466 } 467 table = &(texUnit->ColorTable); 468 scale = ctx->Pixel.TextureColorTableScale; 469 bias = ctx->Pixel.TextureColorTableBias; 470 break; 471 case GL_POST_CONVOLUTION_COLOR_TABLE: 472 table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION]; 473 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]; 474 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]; 475 break; 476 case GL_POST_COLOR_MATRIX_COLOR_TABLE: 477 table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX]; 478 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]; 479 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX]; 480 break; 481 default: 482 /* try texture targets */ 483 texObj = _mesa_select_tex_object(ctx, texUnit, target); 484 if (texObj && !_mesa_is_proxy_texture(target)) { 485 table = &texObj->Palette; 486 } 487 else { 488 _mesa_error(ctx, GL_INVALID_ENUM, "glColorSubTable(target)"); 489 return; 490 } 491 } 492 493 assert(table); 494 495 if (!_mesa_is_legal_format_and_type(ctx, format, type) || 496 format == GL_INTENSITY) { 497 _mesa_error(ctx, GL_INVALID_OPERATION, "glColorSubTable(format or type)"); 498 return; 499 } 500 501 if (count < 1) { 502 _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)"); 503 return; 504 } 505 506 /* error should have been caught sooner */ 507 assert(_mesa_components_in_format(table->_BaseFormat) > 0); 508 509 if (start + count > (GLint) table->Size) { 510 _mesa_error(ctx, GL_INVALID_VALUE, "glColorSubTable(count)"); 511 return; 512 } 513 514 if (!table->TableF || !table->TableUB) { 515 /* a GL_OUT_OF_MEMORY error would have been recorded previously */ 516 return; 517 } 518 519 store_colortable_entries(ctx, table, start, count, 520 format, type, data, 521 scale[0], bias[0], 522 scale[1], bias[1], 523 scale[2], bias[2], 524 scale[3], bias[3]); 525 526 if (texObj || target == GL_SHARED_TEXTURE_PALETTE_EXT) { 527 /* per-texture object palette */ 528 if (ctx->Driver.UpdateTexturePalette) { 529 (*ctx->Driver.UpdateTexturePalette)( ctx, texObj ); 530 } 531 } 532 533 ctx->NewState |= _NEW_PIXEL; 534} 535 536 537 538void GLAPIENTRY 539_mesa_CopyColorTable(GLenum target, GLenum internalformat, 540 GLint x, GLint y, GLsizei width) 541{ 542 GET_CURRENT_CONTEXT(ctx); 543 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 544 545 /* Select buffer to read from */ 546 ctx->Driver.CopyColorTable( ctx, target, internalformat, x, y, width ); 547} 548 549 550 551void GLAPIENTRY 552_mesa_CopyColorSubTable(GLenum target, GLsizei start, 553 GLint x, GLint y, GLsizei width) 554{ 555 GET_CURRENT_CONTEXT(ctx); 556 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 557 558 ctx->Driver.CopyColorSubTable( ctx, target, start, x, y, width ); 559} 560 561 562 563void GLAPIENTRY 564_mesa_GetColorTable( GLenum target, GLenum format, 565 GLenum type, GLvoid *data ) 566{ 567 GET_CURRENT_CONTEXT(ctx); 568 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 569 struct gl_color_table *table = NULL; 570 GLfloat rgba[MAX_COLOR_TABLE_SIZE][4]; 571 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 572 573 if (ctx->NewState) { 574 _mesa_update_state(ctx); 575 } 576 577 switch (target) { 578 case GL_SHARED_TEXTURE_PALETTE_EXT: 579 table = &ctx->Texture.Palette; 580 break; 581 case GL_COLOR_TABLE: 582 table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION]; 583 break; 584 case GL_TEXTURE_COLOR_TABLE_SGI: 585 if (!ctx->Extensions.SGI_texture_color_table) { 586 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)"); 587 return; 588 } 589 table = &(texUnit->ColorTable); 590 break; 591 case GL_POST_CONVOLUTION_COLOR_TABLE: 592 table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION]; 593 break; 594 case GL_POST_COLOR_MATRIX_COLOR_TABLE: 595 table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX]; 596 break; 597 default: 598 /* try texture targets */ 599 { 600 struct gl_texture_object *texobj 601 = _mesa_select_tex_object(ctx, texUnit, target); 602 if (texobj && !_mesa_is_proxy_texture(target)) { 603 table = &texobj->Palette; 604 } 605 else { 606 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTable(target)"); 607 return; 608 } 609 } 610 } 611 612 ASSERT(table); 613 614 if (table->Size <= 0) { 615 return; 616 } 617 618 switch (table->_BaseFormat) { 619 case GL_ALPHA: 620 { 621 GLuint i; 622 for (i = 0; i < table->Size; i++) { 623 rgba[i][RCOMP] = 0; 624 rgba[i][GCOMP] = 0; 625 rgba[i][BCOMP] = 0; 626 rgba[i][ACOMP] = table->TableF[i]; 627 } 628 } 629 break; 630 case GL_LUMINANCE: 631 { 632 GLuint i; 633 for (i = 0; i < table->Size; i++) { 634 rgba[i][RCOMP] = 635 rgba[i][GCOMP] = 636 rgba[i][BCOMP] = table->TableF[i]; 637 rgba[i][ACOMP] = 1.0F; 638 } 639 } 640 break; 641 case GL_LUMINANCE_ALPHA: 642 { 643 GLuint i; 644 for (i = 0; i < table->Size; i++) { 645 rgba[i][RCOMP] = 646 rgba[i][GCOMP] = 647 rgba[i][BCOMP] = table->TableF[i*2+0]; 648 rgba[i][ACOMP] = table->TableF[i*2+1]; 649 } 650 } 651 break; 652 case GL_INTENSITY: 653 { 654 GLuint i; 655 for (i = 0; i < table->Size; i++) { 656 rgba[i][RCOMP] = 657 rgba[i][GCOMP] = 658 rgba[i][BCOMP] = 659 rgba[i][ACOMP] = table->TableF[i]; 660 } 661 } 662 break; 663 case GL_RGB: 664 { 665 GLuint i; 666 for (i = 0; i < table->Size; i++) { 667 rgba[i][RCOMP] = table->TableF[i*3+0]; 668 rgba[i][GCOMP] = table->TableF[i*3+1]; 669 rgba[i][BCOMP] = table->TableF[i*3+2]; 670 rgba[i][ACOMP] = 1.0F; 671 } 672 } 673 break; 674 case GL_RGBA: 675 _mesa_memcpy(rgba, table->TableF, 4 * table->Size * sizeof(GLfloat)); 676 break; 677 default: 678 _mesa_problem(ctx, "bad table format in glGetColorTable"); 679 return; 680 } 681 682 data = _mesa_map_validate_pbo_dest(ctx, 683 1, &ctx->Pack, table->Size, 1, 1, 684 format, type, data, 685 "glGetColorTable"); 686 if (!data) 687 return; 688 689 _mesa_pack_rgba_span_float(ctx, table->Size, rgba, 690 format, type, data, &ctx->Pack, 0x0); 691 692 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 693} 694 695 696 697void GLAPIENTRY 698_mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params) 699{ 700 GLfloat *scale, *bias; 701 GET_CURRENT_CONTEXT(ctx); 702 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 703 704 switch (target) { 705 case GL_COLOR_TABLE_SGI: 706 scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]; 707 bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]; 708 break; 709 case GL_TEXTURE_COLOR_TABLE_SGI: 710 scale = ctx->Pixel.TextureColorTableScale; 711 bias = ctx->Pixel.TextureColorTableBias; 712 break; 713 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI: 714 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]; 715 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]; 716 break; 717 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI: 718 scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]; 719 bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX]; 720 break; 721 default: 722 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameter(target)"); 723 return; 724 } 725 726 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 727 COPY_4V(scale, params); 728 } 729 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 730 COPY_4V(bias, params); 731 } 732 else { 733 _mesa_error(ctx, GL_INVALID_ENUM, "glColorTableParameterfv(pname)"); 734 return; 735 } 736 737 ctx->NewState |= _NEW_PIXEL; 738} 739 740 741 742void GLAPIENTRY 743_mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params) 744{ 745 GLfloat fparams[4]; 746 if (pname == GL_COLOR_TABLE_SGI || 747 pname == GL_TEXTURE_COLOR_TABLE_SGI || 748 pname == GL_POST_CONVOLUTION_COLOR_TABLE_SGI || 749 pname == GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI) { 750 /* four values */ 751 fparams[0] = (GLfloat) params[0]; 752 fparams[1] = (GLfloat) params[1]; 753 fparams[2] = (GLfloat) params[2]; 754 fparams[3] = (GLfloat) params[3]; 755 } 756 else { 757 /* one values */ 758 fparams[0] = (GLfloat) params[0]; 759 } 760 _mesa_ColorTableParameterfv(target, pname, fparams); 761} 762 763 764 765void GLAPIENTRY 766_mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params ) 767{ 768 GET_CURRENT_CONTEXT(ctx); 769 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 770 struct gl_color_table *table = NULL; 771 ASSERT_OUTSIDE_BEGIN_END(ctx); 772 773 switch (target) { 774 case GL_SHARED_TEXTURE_PALETTE_EXT: 775 table = &ctx->Texture.Palette; 776 break; 777 case GL_COLOR_TABLE: 778 table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION]; 779 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 780 COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]); 781 return; 782 } 783 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 784 COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]); 785 return; 786 } 787 break; 788 case GL_PROXY_COLOR_TABLE: 789 table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION]; 790 break; 791 case GL_TEXTURE_COLOR_TABLE_SGI: 792 if (!ctx->Extensions.SGI_texture_color_table) { 793 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)"); 794 return; 795 } 796 table = &(texUnit->ColorTable); 797 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 798 COPY_4V(params, ctx->Pixel.TextureColorTableScale); 799 return; 800 } 801 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 802 COPY_4V(params, ctx->Pixel.TextureColorTableBias); 803 return; 804 } 805 break; 806 case GL_PROXY_TEXTURE_COLOR_TABLE_SGI: 807 if (!ctx->Extensions.SGI_texture_color_table) { 808 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)"); 809 return; 810 } 811 table = &(texUnit->ProxyColorTable); 812 break; 813 case GL_POST_CONVOLUTION_COLOR_TABLE: 814 table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION]; 815 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 816 COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]); 817 return; 818 } 819 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 820 COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]); 821 return; 822 } 823 break; 824 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE: 825 table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION]; 826 break; 827 case GL_POST_COLOR_MATRIX_COLOR_TABLE: 828 table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX]; 829 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 830 COPY_4V(params, ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]); 831 return; 832 } 833 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 834 COPY_4V(params, ctx->Pixel.ColorTableBias[COLORTABLE_POSTCOLORMATRIX]); 835 return; 836 } 837 break; 838 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE: 839 table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX]; 840 break; 841 default: 842 /* try texture targets */ 843 { 844 struct gl_texture_object *texobj 845 = _mesa_select_tex_object(ctx, texUnit, target); 846 if (texobj) { 847 table = &texobj->Palette; 848 } 849 else { 850 _mesa_error(ctx, GL_INVALID_ENUM, 851 "glGetColorTableParameterfv(target)"); 852 return; 853 } 854 } 855 } 856 857 assert(table); 858 859 switch (pname) { 860 case GL_COLOR_TABLE_FORMAT: 861 *params = (GLfloat) table->InternalFormat; 862 break; 863 case GL_COLOR_TABLE_WIDTH: 864 *params = (GLfloat) table->Size; 865 break; 866 case GL_COLOR_TABLE_RED_SIZE: 867 *params = (GLfloat) table->RedSize; 868 break; 869 case GL_COLOR_TABLE_GREEN_SIZE: 870 *params = (GLfloat) table->GreenSize; 871 break; 872 case GL_COLOR_TABLE_BLUE_SIZE: 873 *params = (GLfloat) table->BlueSize; 874 break; 875 case GL_COLOR_TABLE_ALPHA_SIZE: 876 *params = (GLfloat) table->AlphaSize; 877 break; 878 case GL_COLOR_TABLE_LUMINANCE_SIZE: 879 *params = (GLfloat) table->LuminanceSize; 880 break; 881 case GL_COLOR_TABLE_INTENSITY_SIZE: 882 *params = (GLfloat) table->IntensitySize; 883 break; 884 default: 885 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameterfv(pname)" ); 886 return; 887 } 888} 889 890 891 892void GLAPIENTRY 893_mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params ) 894{ 895 GET_CURRENT_CONTEXT(ctx); 896 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 897 struct gl_color_table *table = NULL; 898 ASSERT_OUTSIDE_BEGIN_END(ctx); 899 900 switch (target) { 901 case GL_SHARED_TEXTURE_PALETTE_EXT: 902 table = &ctx->Texture.Palette; 903 break; 904 case GL_COLOR_TABLE: 905 table = &ctx->ColorTable[COLORTABLE_PRECONVOLUTION]; 906 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 907 GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_PRECONVOLUTION]; 908 params[0] = (GLint) scale[0]; 909 params[1] = (GLint) scale[1]; 910 params[2] = (GLint) scale[2]; 911 params[3] = (GLint) scale[3]; 912 return; 913 } 914 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 915 GLfloat *bias = ctx->Pixel.ColorTableBias[COLORTABLE_PRECONVOLUTION]; 916 params[0] = (GLint) bias[0]; 917 params[1] = (GLint) bias[1]; 918 params[2] = (GLint) bias[2]; 919 params[3] = (GLint) bias[3]; 920 return; 921 } 922 break; 923 case GL_PROXY_COLOR_TABLE: 924 table = &ctx->ProxyColorTable[COLORTABLE_PRECONVOLUTION]; 925 break; 926 case GL_TEXTURE_COLOR_TABLE_SGI: 927 if (!ctx->Extensions.SGI_texture_color_table) { 928 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)"); 929 return; 930 } 931 table = &(texUnit->ColorTable); 932 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 933 params[0] = (GLint) ctx->Pixel.TextureColorTableScale[0]; 934 params[1] = (GLint) ctx->Pixel.TextureColorTableScale[1]; 935 params[2] = (GLint) ctx->Pixel.TextureColorTableScale[2]; 936 params[3] = (GLint) ctx->Pixel.TextureColorTableScale[3]; 937 return; 938 } 939 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 940 params[0] = (GLint) ctx->Pixel.TextureColorTableBias[0]; 941 params[1] = (GLint) ctx->Pixel.TextureColorTableBias[1]; 942 params[2] = (GLint) ctx->Pixel.TextureColorTableBias[2]; 943 params[3] = (GLint) ctx->Pixel.TextureColorTableBias[3]; 944 return; 945 } 946 break; 947 case GL_PROXY_TEXTURE_COLOR_TABLE_SGI: 948 if (!ctx->Extensions.SGI_texture_color_table) { 949 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameter(target)"); 950 return; 951 } 952 table = &(texUnit->ProxyColorTable); 953 break; 954 case GL_POST_CONVOLUTION_COLOR_TABLE: 955 table = &ctx->ColorTable[COLORTABLE_POSTCONVOLUTION]; 956 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 957 GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCONVOLUTION]; 958 params[0] = (GLint) scale[0]; 959 params[1] = (GLint) scale[1]; 960 params[2] = (GLint) scale[2]; 961 params[3] = (GLint) scale[3]; 962 return; 963 } 964 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 965 GLfloat *bias = ctx->Pixel.ColorTableBias[COLORTABLE_POSTCONVOLUTION]; 966 params[0] = (GLint) bias[0]; 967 params[1] = (GLint) bias[1]; 968 params[2] = (GLint) bias[2]; 969 params[3] = (GLint) bias[3]; 970 return; 971 } 972 break; 973 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE: 974 table = &ctx->ProxyColorTable[COLORTABLE_POSTCONVOLUTION]; 975 break; 976 case GL_POST_COLOR_MATRIX_COLOR_TABLE: 977 table = &ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX]; 978 if (pname == GL_COLOR_TABLE_SCALE_SGI) { 979 GLfloat *scale = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]; 980 params[0] = (GLint) scale[0]; 981 params[0] = (GLint) scale[1]; 982 params[0] = (GLint) scale[2]; 983 params[0] = (GLint) scale[3]; 984 return; 985 } 986 else if (pname == GL_COLOR_TABLE_BIAS_SGI) { 987 GLfloat *bias = ctx->Pixel.ColorTableScale[COLORTABLE_POSTCOLORMATRIX]; 988 params[0] = (GLint) bias[0]; 989 params[1] = (GLint) bias[1]; 990 params[2] = (GLint) bias[2]; 991 params[3] = (GLint) bias[3]; 992 return; 993 } 994 break; 995 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE: 996 table = &ctx->ProxyColorTable[COLORTABLE_POSTCOLORMATRIX]; 997 break; 998 default: 999 /* Try texture targets */ 1000 { 1001 struct gl_texture_object *texobj 1002 = _mesa_select_tex_object(ctx, texUnit, target); 1003 if (texobj) { 1004 table = &texobj->Palette; 1005 } 1006 else { 1007 _mesa_error(ctx, GL_INVALID_ENUM, 1008 "glGetColorTableParameteriv(target)"); 1009 return; 1010 } 1011 } 1012 } 1013 1014 assert(table); 1015 1016 switch (pname) { 1017 case GL_COLOR_TABLE_FORMAT: 1018 *params = table->InternalFormat; 1019 break; 1020 case GL_COLOR_TABLE_WIDTH: 1021 *params = table->Size; 1022 break; 1023 case GL_COLOR_TABLE_RED_SIZE: 1024 *params = table->RedSize; 1025 break; 1026 case GL_COLOR_TABLE_GREEN_SIZE: 1027 *params = table->GreenSize; 1028 break; 1029 case GL_COLOR_TABLE_BLUE_SIZE: 1030 *params = table->BlueSize; 1031 break; 1032 case GL_COLOR_TABLE_ALPHA_SIZE: 1033 *params = table->AlphaSize; 1034 break; 1035 case GL_COLOR_TABLE_LUMINANCE_SIZE: 1036 *params = table->LuminanceSize; 1037 break; 1038 case GL_COLOR_TABLE_INTENSITY_SIZE: 1039 *params = table->IntensitySize; 1040 break; 1041 default: 1042 _mesa_error(ctx, GL_INVALID_ENUM, "glGetColorTableParameteriv(pname)" ); 1043 return; 1044 } 1045} 1046 1047/**********************************************************************/ 1048/***** Initialization *****/ 1049/**********************************************************************/ 1050 1051 1052void 1053_mesa_init_colortable( struct gl_color_table *p ) 1054{ 1055 p->TableF = NULL; 1056 p->TableUB = NULL; 1057 p->Size = 0; 1058 p->InternalFormat = GL_RGBA; 1059} 1060 1061 1062 1063void 1064_mesa_free_colortable_data( struct gl_color_table *p ) 1065{ 1066 if (p->TableF) { 1067 _mesa_free(p->TableF); 1068 p->TableF = NULL; 1069 } 1070 if (p->TableUB) { 1071 _mesa_free(p->TableUB); 1072 p->TableUB = NULL; 1073 } 1074} 1075 1076 1077/* 1078 * Initialize all colortables for a context. 1079 */ 1080void 1081_mesa_init_colortables( GLcontext * ctx ) 1082{ 1083 GLuint i; 1084 for (i = 0; i < COLORTABLE_MAX; i++) { 1085 _mesa_init_colortable(&ctx->ColorTable[i]); 1086 _mesa_init_colortable(&ctx->ProxyColorTable[i]); 1087 } 1088} 1089 1090 1091/* 1092 * Free all colortable data for a context 1093 */ 1094void 1095_mesa_free_colortables_data( GLcontext *ctx ) 1096{ 1097 GLuint i; 1098 for (i = 0; i < COLORTABLE_MAX; i++) { 1099 _mesa_free_colortable_data(&ctx->ColorTable[i]); 1100 _mesa_free_colortable_data(&ctx->ProxyColorTable[i]); 1101 } 1102} 1103