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fail2.gcov
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-: 0:Source:pngget.c
-: 0:Programs:15
-: 1:
-: 2:/* pngget.c - retrieval of values from info struct
-: 3: *
-: 4: * Last changed in libpng 1.6.32 [August 24, 2017]
-: 5: * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
-: 6: * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
-: 7: * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
-: 8: *
-: 9: * This code is released under the libpng license.
-: 10: * For conditions of distribution and use, see the disclaimer
-: 11: * and license in png.h
-: 12: *
-: 13: */
-: 14:
-: 15:#include "pngpriv.h"
-: 16:
-: 17:#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
-: 18:
-: 19:png_uint_32 PNGAPI
3: 20:png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 21: png_uint_32 flag)
-: 22:{
3: 23: if (png_ptr != NULL && info_ptr != NULL)
3: 24: return(info_ptr->valid & flag);
-: 25:
#####: 26: return(0);
-: 27:}
-: 28:
-: 29:png_size_t PNGAPI
3: 30:png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 31:{
3: 32: if (png_ptr != NULL && info_ptr != NULL)
3: 33: return(info_ptr->rowbytes);
-: 34:
#####: 35: return(0);
-: 36:}
-: 37:
-: 38:#ifdef PNG_INFO_IMAGE_SUPPORTED
-: 39:png_bytepp PNGAPI
#####: 40:png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 41:{
#####: 42: if (png_ptr != NULL && info_ptr != NULL)
#####: 43: return(info_ptr->row_pointers);
-: 44:
#####: 45: return(0);
-: 46:}
-: 47:#endif
-: 48:
-: 49:#ifdef PNG_EASY_ACCESS_SUPPORTED
-: 50:/* Easy access to info, added in libpng-0.99 */
-: 51:png_uint_32 PNGAPI
#####: 52:png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 53:{
#####: 54: if (png_ptr != NULL && info_ptr != NULL)
#####: 55: return info_ptr->width;
-: 56:
#####: 57: return (0);
-: 58:}
-: 59:
-: 60:png_uint_32 PNGAPI
#####: 61:png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 62:{
#####: 63: if (png_ptr != NULL && info_ptr != NULL)
#####: 64: return info_ptr->height;
-: 65:
#####: 66: return (0);
-: 67:}
-: 68:
-: 69:png_byte PNGAPI
#####: 70:png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 71:{
#####: 72: if (png_ptr != NULL && info_ptr != NULL)
#####: 73: return info_ptr->bit_depth;
-: 74:
#####: 75: return (0);
-: 76:}
-: 77:
-: 78:png_byte PNGAPI
#####: 79:png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 80:{
#####: 81: if (png_ptr != NULL && info_ptr != NULL)
#####: 82: return info_ptr->color_type;
-: 83:
#####: 84: return (0);
-: 85:}
-: 86:
-: 87:png_byte PNGAPI
#####: 88:png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 89:{
#####: 90: if (png_ptr != NULL && info_ptr != NULL)
#####: 91: return info_ptr->filter_type;
-: 92:
#####: 93: return (0);
-: 94:}
-: 95:
-: 96:png_byte PNGAPI
#####: 97:png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 98:{
#####: 99: if (png_ptr != NULL && info_ptr != NULL)
#####: 100: return info_ptr->interlace_type;
-: 101:
#####: 102: return (0);
-: 103:}
-: 104:
-: 105:png_byte PNGAPI
#####: 106:png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 107:{
#####: 108: if (png_ptr != NULL && info_ptr != NULL)
#####: 109: return info_ptr->compression_type;
-: 110:
#####: 111: return (0);
-: 112:}
-: 113:
-: 114:png_uint_32 PNGAPI
#####: 115:png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
-: 116: info_ptr)
-: 117:{
-: 118:#ifdef PNG_pHYs_SUPPORTED
#####: 119: if (png_ptr != NULL && info_ptr != NULL &&
#####: 120: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 121: {
-: 122: png_debug1(1, "in %s retrieval function",
-: 123: "png_get_x_pixels_per_meter");
-: 124:
#####: 125: if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
#####: 126: return (info_ptr->x_pixels_per_unit);
-: 127: }
-: 128:#else
-: 129: PNG_UNUSED(png_ptr)
-: 130: PNG_UNUSED(info_ptr)
-: 131:#endif
-: 132:
#####: 133: return (0);
-: 134:}
-: 135:
-: 136:png_uint_32 PNGAPI
#####: 137:png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp
-: 138: info_ptr)
-: 139:{
-: 140:#ifdef PNG_pHYs_SUPPORTED
#####: 141: if (png_ptr != NULL && info_ptr != NULL &&
#####: 142: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 143: {
-: 144: png_debug1(1, "in %s retrieval function",
-: 145: "png_get_y_pixels_per_meter");
-: 146:
#####: 147: if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER)
#####: 148: return (info_ptr->y_pixels_per_unit);
-: 149: }
-: 150:#else
-: 151: PNG_UNUSED(png_ptr)
-: 152: PNG_UNUSED(info_ptr)
-: 153:#endif
-: 154:
#####: 155: return (0);
-: 156:}
-: 157:
-: 158:png_uint_32 PNGAPI
#####: 159:png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 160:{
-: 161:#ifdef PNG_pHYs_SUPPORTED
#####: 162: if (png_ptr != NULL && info_ptr != NULL &&
#####: 163: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 164: {
-: 165: png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
-: 166:
#####: 167: if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER &&
#####: 168: info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit)
#####: 169: return (info_ptr->x_pixels_per_unit);
-: 170: }
-: 171:#else
-: 172: PNG_UNUSED(png_ptr)
-: 173: PNG_UNUSED(info_ptr)
-: 174:#endif
-: 175:
#####: 176: return (0);
-: 177:}
-: 178:
-: 179:#ifdef PNG_FLOATING_POINT_SUPPORTED
-: 180:float PNGAPI
#####: 181:png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp
-: 182: info_ptr)
-: 183:{
-: 184:#ifdef PNG_READ_pHYs_SUPPORTED
#####: 185: if (png_ptr != NULL && info_ptr != NULL &&
#####: 186: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 187: {
-: 188: png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
-: 189:
#####: 190: if (info_ptr->x_pixels_per_unit != 0)
#####: 191: return ((float)((float)info_ptr->y_pixels_per_unit
#####: 192: /(float)info_ptr->x_pixels_per_unit));
-: 193: }
-: 194:#else
-: 195: PNG_UNUSED(png_ptr)
-: 196: PNG_UNUSED(info_ptr)
-: 197:#endif
-: 198:
#####: 199: return ((float)0.0);
-: 200:}
-: 201:#endif
-: 202:
-: 203:#ifdef PNG_FIXED_POINT_SUPPORTED
-: 204:png_fixed_point PNGAPI
#####: 205:png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr,
-: 206: png_const_inforp info_ptr)
-: 207:{
-: 208:#ifdef PNG_READ_pHYs_SUPPORTED
#####: 209: if (png_ptr != NULL && info_ptr != NULL &&
#####: 210: (info_ptr->valid & PNG_INFO_pHYs) != 0 &&
#####: 211: info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
#####: 212: info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX &&
#####: 213: info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX)
-: 214: {
-: 215: png_fixed_point res;
-: 216:
-: 217: png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed");
-: 218:
-: 219: /* The following casts work because a PNG 4 byte integer only has a valid
-: 220: * range of 0..2^31-1; otherwise the cast might overflow.
-: 221: */
#####: 222: if (png_muldiv(&res, (png_int_32)info_ptr->y_pixels_per_unit, PNG_FP_1,
#####: 223: (png_int_32)info_ptr->x_pixels_per_unit) != 0)
#####: 224: return res;
-: 225: }
-: 226:#else
-: 227: PNG_UNUSED(png_ptr)
-: 228: PNG_UNUSED(info_ptr)
-: 229:#endif
-: 230:
#####: 231: return 0;
-: 232:}
-: 233:#endif
-: 234:
-: 235:png_int_32 PNGAPI
#####: 236:png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 237:{
-: 238:#ifdef PNG_oFFs_SUPPORTED
#####: 239: if (png_ptr != NULL && info_ptr != NULL &&
#####: 240: (info_ptr->valid & PNG_INFO_oFFs) != 0)
-: 241: {
-: 242: png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
-: 243:
#####: 244: if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
#####: 245: return (info_ptr->x_offset);
-: 246: }
-: 247:#else
-: 248: PNG_UNUSED(png_ptr)
-: 249: PNG_UNUSED(info_ptr)
-: 250:#endif
-: 251:
#####: 252: return (0);
-: 253:}
-: 254:
-: 255:png_int_32 PNGAPI
#####: 256:png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 257:{
-: 258:#ifdef PNG_oFFs_SUPPORTED
#####: 259: if (png_ptr != NULL && info_ptr != NULL &&
#####: 260: (info_ptr->valid & PNG_INFO_oFFs) != 0)
-: 261: {
-: 262: png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
-: 263:
#####: 264: if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER)
#####: 265: return (info_ptr->y_offset);
-: 266: }
-: 267:#else
-: 268: PNG_UNUSED(png_ptr)
-: 269: PNG_UNUSED(info_ptr)
-: 270:#endif
-: 271:
#####: 272: return (0);
-: 273:}
-: 274:
-: 275:png_int_32 PNGAPI
#####: 276:png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 277:{
-: 278:#ifdef PNG_oFFs_SUPPORTED
#####: 279: if (png_ptr != NULL && info_ptr != NULL &&
#####: 280: (info_ptr->valid & PNG_INFO_oFFs) != 0)
-: 281: {
-: 282: png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
-: 283:
#####: 284: if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
#####: 285: return (info_ptr->x_offset);
-: 286: }
-: 287:#else
-: 288: PNG_UNUSED(png_ptr)
-: 289: PNG_UNUSED(info_ptr)
-: 290:#endif
-: 291:
#####: 292: return (0);
-: 293:}
-: 294:
-: 295:png_int_32 PNGAPI
#####: 296:png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 297:{
-: 298:#ifdef PNG_oFFs_SUPPORTED
#####: 299: if (png_ptr != NULL && info_ptr != NULL &&
#####: 300: (info_ptr->valid & PNG_INFO_oFFs) != 0)
-: 301: {
-: 302: png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
-: 303:
#####: 304: if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL)
#####: 305: return (info_ptr->y_offset);
-: 306: }
-: 307:#else
-: 308: PNG_UNUSED(png_ptr)
-: 309: PNG_UNUSED(info_ptr)
-: 310:#endif
-: 311:
#####: 312: return (0);
-: 313:}
-: 314:
-: 315:#ifdef PNG_INCH_CONVERSIONS_SUPPORTED
-: 316:static png_uint_32
#####: 317:ppi_from_ppm(png_uint_32 ppm)
-: 318:{
-: 319:#if 0
-: 320: /* The conversion is *(2.54/100), in binary (32 digits):
-: 321: * .00000110100000001001110101001001
-: 322: */
-: 323: png_uint_32 t1001, t1101;
-: 324: ppm >>= 1; /* .1 */
-: 325: t1001 = ppm + (ppm >> 3); /* .1001 */
-: 326: t1101 = t1001 + (ppm >> 1); /* .1101 */
-: 327: ppm >>= 20; /* .000000000000000000001 */
-: 328: t1101 += t1101 >> 15; /* .1101000000000001101 */
-: 329: t1001 >>= 11; /* .000000000001001 */
-: 330: t1001 += t1001 >> 12; /* .000000000001001000000001001 */
-: 331: ppm += t1001; /* .000000000001001000001001001 */
-: 332: ppm += t1101; /* .110100000001001110101001001 */
-: 333: return (ppm + 16) >> 5;/* .00000110100000001001110101001001 */
-: 334:#else
-: 335: /* The argument is a PNG unsigned integer, so it is not permitted
-: 336: * to be bigger than 2^31.
-: 337: */
-: 338: png_fixed_point result;
#####: 339: if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127,
-: 340: 5000) != 0)
#####: 341: return (png_uint_32)result;
-: 342:
-: 343: /* Overflow. */
#####: 344: return 0;
-: 345:#endif
-: 346:}
-: 347:
-: 348:png_uint_32 PNGAPI
#####: 349:png_get_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 350:{
#####: 351: return ppi_from_ppm(png_get_pixels_per_meter(png_ptr, info_ptr));
-: 352:}
-: 353:
-: 354:png_uint_32 PNGAPI
#####: 355:png_get_x_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 356:{
#####: 357: return ppi_from_ppm(png_get_x_pixels_per_meter(png_ptr, info_ptr));
-: 358:}
-: 359:
-: 360:png_uint_32 PNGAPI
#####: 361:png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 362:{
#####: 363: return ppi_from_ppm(png_get_y_pixels_per_meter(png_ptr, info_ptr));
-: 364:}
-: 365:
-: 366:#ifdef PNG_FIXED_POINT_SUPPORTED
-: 367:static png_fixed_point
#####: 368:png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns)
-: 369:{
-: 370: /* Convert from metres * 1,000,000 to inches * 100,000, meters to
-: 371: * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127.
-: 372: * Notice that this can overflow - a warning is output and 0 is
-: 373: * returned.
-: 374: */
#####: 375: return png_muldiv_warn(png_ptr, microns, 500, 127);
-: 376:}
-: 377:
-: 378:png_fixed_point PNGAPI
#####: 379:png_get_x_offset_inches_fixed(png_const_structrp png_ptr,
-: 380: png_const_inforp info_ptr)
-: 381:{
#####: 382: return png_fixed_inches_from_microns(png_ptr,
-: 383: png_get_x_offset_microns(png_ptr, info_ptr));
-: 384:}
-: 385:#endif
-: 386:
-: 387:#ifdef PNG_FIXED_POINT_SUPPORTED
-: 388:png_fixed_point PNGAPI
#####: 389:png_get_y_offset_inches_fixed(png_const_structrp png_ptr,
-: 390: png_const_inforp info_ptr)
-: 391:{
#####: 392: return png_fixed_inches_from_microns(png_ptr,
-: 393: png_get_y_offset_microns(png_ptr, info_ptr));
-: 394:}
-: 395:#endif
-: 396:
-: 397:#ifdef PNG_FLOATING_POINT_SUPPORTED
-: 398:float PNGAPI
#####: 399:png_get_x_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 400:{
-: 401: /* To avoid the overflow do the conversion directly in floating
-: 402: * point.
-: 403: */
#####: 404: return (float)(png_get_x_offset_microns(png_ptr, info_ptr) * .00003937);
-: 405:}
-: 406:#endif
-: 407:
-: 408:#ifdef PNG_FLOATING_POINT_SUPPORTED
-: 409:float PNGAPI
#####: 410:png_get_y_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 411:{
-: 412: /* To avoid the overflow do the conversion directly in floating
-: 413: * point.
-: 414: */
#####: 415: return (float)(png_get_y_offset_microns(png_ptr, info_ptr) * .00003937);
-: 416:}
-: 417:#endif
-: 418:
-: 419:#ifdef PNG_pHYs_SUPPORTED
-: 420:png_uint_32 PNGAPI
#####: 421:png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 422: png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
-: 423:{
#####: 424: png_uint_32 retval = 0;
-: 425:
#####: 426: if (png_ptr != NULL && info_ptr != NULL &&
#####: 427: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 428: {
-: 429: png_debug1(1, "in %s retrieval function", "pHYs");
-: 430:
#####: 431: if (res_x != NULL)
-: 432: {
#####: 433: *res_x = info_ptr->x_pixels_per_unit;
#####: 434: retval |= PNG_INFO_pHYs;
-: 435: }
-: 436:
#####: 437: if (res_y != NULL)
-: 438: {
#####: 439: *res_y = info_ptr->y_pixels_per_unit;
#####: 440: retval |= PNG_INFO_pHYs;
-: 441: }
-: 442:
#####: 443: if (unit_type != NULL)
-: 444: {
#####: 445: *unit_type = (int)info_ptr->phys_unit_type;
#####: 446: retval |= PNG_INFO_pHYs;
-: 447:
#####: 448: if (*unit_type == 1)
-: 449: {
#####: 450: if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50);
#####: 451: if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50);
-: 452: }
-: 453: }
-: 454: }
-: 455:
#####: 456: return (retval);
-: 457:}
-: 458:#endif /* pHYs */
-: 459:#endif /* INCH_CONVERSIONS */
-: 460:
-: 461:/* png_get_channels really belongs in here, too, but it's been around longer */
-: 462:
-: 463:#endif /* EASY_ACCESS */
-: 464:
-: 465:
-: 466:png_byte PNGAPI
#####: 467:png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 468:{
#####: 469: if (png_ptr != NULL && info_ptr != NULL)
#####: 470: return(info_ptr->channels);
-: 471:
#####: 472: return (0);
-: 473:}
-: 474:
-: 475:#ifdef PNG_READ_SUPPORTED
-: 476:png_const_bytep PNGAPI
#####: 477:png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr)
-: 478:{
#####: 479: if (png_ptr != NULL && info_ptr != NULL)
#####: 480: return(info_ptr->signature);
-: 481:
#####: 482: return (NULL);
-: 483:}
-: 484:#endif
-: 485:
-: 486:#ifdef PNG_bKGD_SUPPORTED
-: 487:png_uint_32 PNGAPI
3: 488:png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
-: 489: png_color_16p *background)
-: 490:{
6: 491: if (png_ptr != NULL && info_ptr != NULL &&
6: 492: (info_ptr->valid & PNG_INFO_bKGD) != 0 &&
-: 493: background != NULL)
-: 494: {
-: 495: png_debug1(1, "in %s retrieval function", "bKGD");
-: 496:
3: 497: *background = &(info_ptr->background);
3: 498: return (PNG_INFO_bKGD);
-: 499: }
-: 500:
#####: 501: return (0);
-: 502:}
-: 503:#endif
-: 504:
-: 505:#ifdef PNG_cHRM_SUPPORTED
-: 506:/* The XYZ APIs were added in 1.5.5 to take advantage of the code added at the
-: 507: * same time to correct the rgb grayscale coefficient defaults obtained from the
-: 508: * cHRM chunk in 1.5.4
-: 509: */
-: 510:# ifdef PNG_FLOATING_POINT_SUPPORTED
-: 511:png_uint_32 PNGAPI
#####: 512:png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 513: double *white_x, double *white_y, double *red_x, double *red_y,
-: 514: double *green_x, double *green_y, double *blue_x, double *blue_y)
-: 515:{
-: 516: /* Quiet API change: this code used to only return the end points if a cHRM
-: 517: * chunk was present, but the end points can also come from iCCP or sRGB
-: 518: * chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and
-: 519: * the png_set_ APIs merely check that set end points are mutually
-: 520: * consistent.
-: 521: */
#####: 522: if (png_ptr != NULL && info_ptr != NULL &&
#####: 523: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
-: 524: {
-: 525: png_debug1(1, "in %s retrieval function", "cHRM");
-: 526:
#####: 527: if (white_x != NULL)
#####: 528: *white_x = png_float(png_ptr,
-: 529: info_ptr->colorspace.end_points_xy.whitex, "cHRM white X");
#####: 530: if (white_y != NULL)
#####: 531: *white_y = png_float(png_ptr,
-: 532: info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y");
#####: 533: if (red_x != NULL)
#####: 534: *red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx,
-: 535: "cHRM red X");
#####: 536: if (red_y != NULL)
#####: 537: *red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy,
-: 538: "cHRM red Y");
#####: 539: if (green_x != NULL)
#####: 540: *green_x = png_float(png_ptr,
-: 541: info_ptr->colorspace.end_points_xy.greenx, "cHRM green X");
#####: 542: if (green_y != NULL)
#####: 543: *green_y = png_float(png_ptr,
-: 544: info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y");
#####: 545: if (blue_x != NULL)
#####: 546: *blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex,
-: 547: "cHRM blue X");
#####: 548: if (blue_y != NULL)
#####: 549: *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey,
-: 550: "cHRM blue Y");
#####: 551: return (PNG_INFO_cHRM);
-: 552: }
-: 553:
#####: 554: return (0);
-: 555:}
-: 556:
-: 557:png_uint_32 PNGAPI
#####: 558:png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 559: double *red_X, double *red_Y, double *red_Z, double *green_X,
-: 560: double *green_Y, double *green_Z, double *blue_X, double *blue_Y,
-: 561: double *blue_Z)
-: 562:{
#####: 563: if (png_ptr != NULL && info_ptr != NULL &&
#####: 564: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
-: 565: {
-: 566: png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
-: 567:
#####: 568: if (red_X != NULL)
#####: 569: *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X,
-: 570: "cHRM red X");
#####: 571: if (red_Y != NULL)
#####: 572: *red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y,
-: 573: "cHRM red Y");
#####: 574: if (red_Z != NULL)
#####: 575: *red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z,
-: 576: "cHRM red Z");
#####: 577: if (green_X != NULL)
#####: 578: *green_X = png_float(png_ptr,
-: 579: info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X");
#####: 580: if (green_Y != NULL)
#####: 581: *green_Y = png_float(png_ptr,
-: 582: info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y");
#####: 583: if (green_Z != NULL)
#####: 584: *green_Z = png_float(png_ptr,
-: 585: info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z");
#####: 586: if (blue_X != NULL)
#####: 587: *blue_X = png_float(png_ptr,
-: 588: info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X");
#####: 589: if (blue_Y != NULL)
#####: 590: *blue_Y = png_float(png_ptr,
-: 591: info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y");
#####: 592: if (blue_Z != NULL)
#####: 593: *blue_Z = png_float(png_ptr,
-: 594: info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z");
#####: 595: return (PNG_INFO_cHRM);
-: 596: }
-: 597:
#####: 598: return (0);
-: 599:}
-: 600:# endif
-: 601:
-: 602:# ifdef PNG_FIXED_POINT_SUPPORTED
-: 603:png_uint_32 PNGAPI
#####: 604:png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 605: png_fixed_point *int_red_X, png_fixed_point *int_red_Y,
-: 606: png_fixed_point *int_red_Z, png_fixed_point *int_green_X,
-: 607: png_fixed_point *int_green_Y, png_fixed_point *int_green_Z,
-: 608: png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y,
-: 609: png_fixed_point *int_blue_Z)
-: 610:{
#####: 611: if (png_ptr != NULL && info_ptr != NULL &&
#####: 612: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
-: 613: {
-: 614: png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
-: 615:
#####: 616: if (int_red_X != NULL)
#####: 617: *int_red_X = info_ptr->colorspace.end_points_XYZ.red_X;
#####: 618: if (int_red_Y != NULL)
#####: 619: *int_red_Y = info_ptr->colorspace.end_points_XYZ.red_Y;
#####: 620: if (int_red_Z != NULL)
#####: 621: *int_red_Z = info_ptr->colorspace.end_points_XYZ.red_Z;
#####: 622: if (int_green_X != NULL)
#####: 623: *int_green_X = info_ptr->colorspace.end_points_XYZ.green_X;
#####: 624: if (int_green_Y != NULL)
#####: 625: *int_green_Y = info_ptr->colorspace.end_points_XYZ.green_Y;
#####: 626: if (int_green_Z != NULL)
#####: 627: *int_green_Z = info_ptr->colorspace.end_points_XYZ.green_Z;
#####: 628: if (int_blue_X != NULL)
#####: 629: *int_blue_X = info_ptr->colorspace.end_points_XYZ.blue_X;
#####: 630: if (int_blue_Y != NULL)
#####: 631: *int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y;
#####: 632: if (int_blue_Z != NULL)
#####: 633: *int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z;
#####: 634: return (PNG_INFO_cHRM);
-: 635: }
-: 636:
#####: 637: return (0);
-: 638:}
-: 639:
-: 640:png_uint_32 PNGAPI
3: 641:png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 642: png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x,
-: 643: png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y,
-: 644: png_fixed_point *blue_x, png_fixed_point *blue_y)
-: 645:{
-: 646: png_debug1(1, "in %s retrieval function", "cHRM");
-: 647:
6: 648: if (png_ptr != NULL && info_ptr != NULL &&
3: 649: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
-: 650: {
3: 651: if (white_x != NULL)
3: 652: *white_x = info_ptr->colorspace.end_points_xy.whitex;
3: 653: if (white_y != NULL)
3: 654: *white_y = info_ptr->colorspace.end_points_xy.whitey;
3: 655: if (red_x != NULL)
3: 656: *red_x = info_ptr->colorspace.end_points_xy.redx;
3: 657: if (red_y != NULL)
3: 658: *red_y = info_ptr->colorspace.end_points_xy.redy;
3: 659: if (green_x != NULL)
3: 660: *green_x = info_ptr->colorspace.end_points_xy.greenx;
3: 661: if (green_y != NULL)
3: 662: *green_y = info_ptr->colorspace.end_points_xy.greeny;
3: 663: if (blue_x != NULL)
3: 664: *blue_x = info_ptr->colorspace.end_points_xy.bluex;
3: 665: if (blue_y != NULL)
3: 666: *blue_y = info_ptr->colorspace.end_points_xy.bluey;
3: 667: return (PNG_INFO_cHRM);
-: 668: }
-: 669:
#####: 670: return (0);
-: 671:}
-: 672:# endif
-: 673:#endif
-: 674:
-: 675:#ifdef PNG_gAMA_SUPPORTED
-: 676:# ifdef PNG_FIXED_POINT_SUPPORTED
-: 677:png_uint_32 PNGAPI
3: 678:png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 679: png_fixed_point *file_gamma)
-: 680:{
-: 681: png_debug1(1, "in %s retrieval function", "gAMA");
-: 682:
6: 683: if (png_ptr != NULL && info_ptr != NULL &&
6: 684: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
-: 685: file_gamma != NULL)
-: 686: {
3: 687: *file_gamma = info_ptr->colorspace.gamma;
3: 688: return (PNG_INFO_gAMA);
-: 689: }
-: 690:
#####: 691: return (0);
-: 692:}
-: 693:# endif
-: 694:
-: 695:# ifdef PNG_FLOATING_POINT_SUPPORTED
-: 696:png_uint_32 PNGAPI
#####: 697:png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 698: double *file_gamma)
-: 699:{
-: 700: png_debug1(1, "in %s retrieval function", "gAMA(float)");
-: 701:
#####: 702: if (png_ptr != NULL && info_ptr != NULL &&
#####: 703: (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
-: 704: file_gamma != NULL)
-: 705: {
#####: 706: *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
-: 707: "png_get_gAMA");
#####: 708: return (PNG_INFO_gAMA);
-: 709: }
-: 710:
#####: 711: return (0);
-: 712:}
-: 713:# endif
-: 714:#endif
-: 715:
-: 716:#ifdef PNG_sRGB_SUPPORTED
-: 717:png_uint_32 PNGAPI
3: 718:png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 719: int *file_srgb_intent)
-: 720:{
-: 721: png_debug1(1, "in %s retrieval function", "sRGB");
-: 722:
6: 723: if (png_ptr != NULL && info_ptr != NULL &&
6: 724: (info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
-: 725: {
3: 726: *file_srgb_intent = info_ptr->colorspace.rendering_intent;
3: 727: return (PNG_INFO_sRGB);
-: 728: }
-: 729:
#####: 730: return (0);
-: 731:}
-: 732:#endif
-: 733:
-: 734:#ifdef PNG_iCCP_SUPPORTED
-: 735:png_uint_32 PNGAPI
3: 736:png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
-: 737: png_charpp name, int *compression_type,
-: 738: png_bytepp profile, png_uint_32 *proflen)
-: 739:{
-: 740: png_debug1(1, "in %s retrieval function", "iCCP");
-: 741:
6: 742: if (png_ptr != NULL && info_ptr != NULL &&
3: 743: (info_ptr->valid & PNG_INFO_iCCP) != 0 &&
#####: 744: name != NULL && compression_type != NULL && profile != NULL &&
-: 745: proflen != NULL)
-: 746: {
#####: 747: *name = info_ptr->iccp_name;
#####: 748: *profile = info_ptr->iccp_profile;
#####: 749: *proflen = png_get_uint_32(info_ptr->iccp_profile);
-: 750: /* This is somewhat irrelevant since the profile data returned has
-: 751: * actually been uncompressed.
-: 752: */
#####: 753: *compression_type = PNG_COMPRESSION_TYPE_BASE;
#####: 754: return (PNG_INFO_iCCP);
-: 755: }
-: 756:
3: 757: return (0);
-: 758:}
-: 759:#endif
-: 760:
-: 761:#ifdef PNG_sPLT_SUPPORTED
-: 762:int PNGAPI
3: 763:png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
-: 764: png_sPLT_tpp spalettes)
-: 765:{
3: 766: if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
-: 767: {
3: 768: *spalettes = info_ptr->splt_palettes;
3: 769: return info_ptr->splt_palettes_num;
-: 770: }
-: 771:
#####: 772: return (0);
-: 773:}
-: 774:#endif
-: 775:
-: 776:#ifdef PNG_eXIf_SUPPORTED
-: 777:png_uint_32 PNGAPI
#####: 778:png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
-: 779: png_bytep *exif)
-: 780:{
#####: 781: png_warning(png_ptr, "png_get_eXIf does not work; use png_get_eXIf_1");
-: 782: PNG_UNUSED(info_ptr)
-: 783: PNG_UNUSED(exif)
#####: 784: return 0;
-: 785:}
-: 786:
-: 787:png_uint_32 PNGAPI
6: 788:png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 789: png_uint_32 *num_exif, png_bytep *exif)
-: 790:{
-: 791: png_debug1(1, "in %s retrieval function", "eXIf");
-: 792:
12: 793: if (png_ptr != NULL && info_ptr != NULL &&
6: 794: (info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL)
-: 795: {
#####: 796: *num_exif = info_ptr->num_exif;
#####: 797: *exif = info_ptr->exif;
#####: 798: return (PNG_INFO_eXIf);
-: 799: }
-: 800:
6: 801: return (0);
-: 802:}
-: 803:#endif
-: 804:
-: 805:#ifdef PNG_hIST_SUPPORTED
-: 806:png_uint_32 PNGAPI
3: 807:png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
-: 808: png_uint_16p *hist)
-: 809:{
-: 810: png_debug1(1, "in %s retrieval function", "hIST");
-: 811:
6: 812: if (png_ptr != NULL && info_ptr != NULL &&
3: 813: (info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
-: 814: {
#####: 815: *hist = info_ptr->hist;
#####: 816: return (PNG_INFO_hIST);
-: 817: }
-: 818:
3: 819: return (0);
-: 820:}
-: 821:#endif
-: 822:
-: 823:png_uint_32 PNGAPI
3: 824:png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 825: png_uint_32 *width, png_uint_32 *height, int *bit_depth,
-: 826: int *color_type, int *interlace_type, int *compression_type,
-: 827: int *filter_type)
-: 828:{
-: 829: png_debug1(1, "in %s retrieval function", "IHDR");
-: 830:
3: 831: if (png_ptr == NULL || info_ptr == NULL)
#####: 832: return (0);
-: 833:
3: 834: if (width != NULL)
3: 835: *width = info_ptr->width;
-: 836:
3: 837: if (height != NULL)
3: 838: *height = info_ptr->height;
-: 839:
3: 840: if (bit_depth != NULL)
3: 841: *bit_depth = info_ptr->bit_depth;
-: 842:
3: 843: if (color_type != NULL)
3: 844: *color_type = info_ptr->color_type;
-: 845:
3: 846: if (compression_type != NULL)
3: 847: *compression_type = info_ptr->compression_type;
-: 848:
3: 849: if (filter_type != NULL)
3: 850: *filter_type = info_ptr->filter_type;
-: 851:
3: 852: if (interlace_type != NULL)
3: 853: *interlace_type = info_ptr->interlace_type;
-: 854:
-: 855: /* This is redundant if we can be sure that the info_ptr values were all
-: 856: * assigned in png_set_IHDR(). We do the check anyhow in case an
-: 857: * application has ignored our advice not to mess with the members
-: 858: * of info_ptr directly.
-: 859: */
15: 860: png_check_IHDR(png_ptr, info_ptr->width, info_ptr->height,
9: 861: info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type,
6: 862: info_ptr->compression_type, info_ptr->filter_type);
-: 863:
3: 864: return (1);
-: 865:}
-: 866:
-: 867:#ifdef PNG_oFFs_SUPPORTED
-: 868:png_uint_32 PNGAPI
3: 869:png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 870: png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)
-: 871:{
-: 872: png_debug1(1, "in %s retrieval function", "oFFs");
-: 873:
6: 874: if (png_ptr != NULL && info_ptr != NULL &&
3: 875: (info_ptr->valid & PNG_INFO_oFFs) != 0 &&
#####: 876: offset_x != NULL && offset_y != NULL && unit_type != NULL)
-: 877: {
#####: 878: *offset_x = info_ptr->x_offset;
#####: 879: *offset_y = info_ptr->y_offset;
#####: 880: *unit_type = (int)info_ptr->offset_unit_type;
#####: 881: return (PNG_INFO_oFFs);
-: 882: }
-: 883:
3: 884: return (0);
-: 885:}
-: 886:#endif
-: 887:
-: 888:#ifdef PNG_pCAL_SUPPORTED
-: 889:png_uint_32 PNGAPI
3: 890:png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
-: 891: png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams,
-: 892: png_charp *units, png_charpp *params)
-: 893:{
-: 894: png_debug1(1, "in %s retrieval function", "pCAL");
-: 895:
6: 896: if (png_ptr != NULL && info_ptr != NULL &&
3: 897: (info_ptr->valid & PNG_INFO_pCAL) != 0 &&
#####: 898: purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
#####: 899: nparams != NULL && units != NULL && params != NULL)
-: 900: {
#####: 901: *purpose = info_ptr->pcal_purpose;
#####: 902: *X0 = info_ptr->pcal_X0;
#####: 903: *X1 = info_ptr->pcal_X1;
#####: 904: *type = (int)info_ptr->pcal_type;
#####: 905: *nparams = (int)info_ptr->pcal_nparams;
#####: 906: *units = info_ptr->pcal_units;
#####: 907: *params = info_ptr->pcal_params;
#####: 908: return (PNG_INFO_pCAL);
-: 909: }
-: 910:
3: 911: return (0);
-: 912:}
-: 913:#endif
-: 914:
-: 915:#ifdef PNG_sCAL_SUPPORTED
-: 916:# ifdef PNG_FIXED_POINT_SUPPORTED
-: 917:# if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \
-: 918: defined(PNG_FLOATING_POINT_SUPPORTED)
-: 919:png_uint_32 PNGAPI
#####: 920:png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 921: int *unit, png_fixed_point *width, png_fixed_point *height)
-: 922:{
#####: 923: if (png_ptr != NULL && info_ptr != NULL &&
#####: 924: (info_ptr->valid & PNG_INFO_sCAL) != 0)
-: 925: {
#####: 926: *unit = info_ptr->scal_unit;
-: 927: /*TODO: make this work without FP support; the API is currently eliminated
-: 928: * if neither floating point APIs nor internal floating point arithmetic
-: 929: * are enabled.
-: 930: */
#####: 931: *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width");
#####: 932: *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height),
-: 933: "sCAL height");
#####: 934: return (PNG_INFO_sCAL);
-: 935: }
-: 936:
#####: 937: return(0);
-: 938:}
-: 939:# endif /* FLOATING_ARITHMETIC */
-: 940:# endif /* FIXED_POINT */
-: 941:# ifdef PNG_FLOATING_POINT_SUPPORTED
-: 942:png_uint_32 PNGAPI
3: 943:png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 944: int *unit, double *width, double *height)
-: 945:{
6: 946: if (png_ptr != NULL && info_ptr != NULL &&
3: 947: (info_ptr->valid & PNG_INFO_sCAL) != 0)
-: 948: {
#####: 949: *unit = info_ptr->scal_unit;
#####: 950: *width = atof(info_ptr->scal_s_width);
#####: 951: *height = atof(info_ptr->scal_s_height);
#####: 952: return (PNG_INFO_sCAL);
-: 953: }
-: 954:
3: 955: return(0);
-: 956:}
-: 957:# endif /* FLOATING POINT */
-: 958:png_uint_32 PNGAPI
#####: 959:png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 960: int *unit, png_charpp width, png_charpp height)
-: 961:{
#####: 962: if (png_ptr != NULL && info_ptr != NULL &&
#####: 963: (info_ptr->valid & PNG_INFO_sCAL) != 0)
-: 964: {
#####: 965: *unit = info_ptr->scal_unit;
#####: 966: *width = info_ptr->scal_s_width;
#####: 967: *height = info_ptr->scal_s_height;
#####: 968: return (PNG_INFO_sCAL);
-: 969: }
-: 970:
#####: 971: return(0);
-: 972:}
-: 973:#endif /* sCAL */
-: 974:
-: 975:#ifdef PNG_pHYs_SUPPORTED
-: 976:png_uint_32 PNGAPI
3: 977:png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr,
-: 978: png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
-: 979:{
3: 980: png_uint_32 retval = 0;
-: 981:
-: 982: png_debug1(1, "in %s retrieval function", "pHYs");
-: 983:
6: 984: if (png_ptr != NULL && info_ptr != NULL &&
3: 985: (info_ptr->valid & PNG_INFO_pHYs) != 0)
-: 986: {
3: 987: if (res_x != NULL)
-: 988: {
3: 989: *res_x = info_ptr->x_pixels_per_unit;
3: 990: retval |= PNG_INFO_pHYs;
-: 991: }
-: 992:
3: 993: if (res_y != NULL)
-: 994: {
3: 995: *res_y = info_ptr->y_pixels_per_unit;
3: 996: retval |= PNG_INFO_pHYs;
-: 997: }
-: 998: