@@ -43,7 +43,7 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
4343 */
4444
4545 switch (transferCharacteristics) {
46- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_GAMMA28 : // 5
46+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT470BG : // 5, gamma=2.8
4747 tf->cutoff = -INFINITY;
4848 tf->c0 = 1 .0f ;
4949 tf->c1 = 1 .0f ;
@@ -53,7 +53,7 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
5353 tf->c5 = 0 .0f ;
5454 tf->gamma = 1 .0f /2 .8f ;
5555 break ;
56- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT709: // 1
56+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT709: // 1, sRGB
5757 case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT601: // 6
5858 case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2020_10BIT: // 14
5959 case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2020_12BIT: // 15
@@ -68,7 +68,7 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
6868 tf->c4 = 4 .5f ;
6969 tf->c5 = 0 .0f ;
7070 break ;
71- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_ST240 : // 7
71+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_SMPTE240 : // 7
7272 tf->cutoff = beta;
7373 //
7474 tf->c0 = alpha;
@@ -104,7 +104,7 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
104104 tf->c4 = 4 .5f ;
105105 tf->c5 = 0 .0f ;
106106 break ;
107- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT1361_EXTENDED : // 12
107+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT1361 : // 12
108108 tf->cutoff = beta;
109109 //
110110 tf->c0 = alpha;
@@ -128,7 +128,7 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
128128 tf->c4 = 12 .92f ;
129129 tf->c5 = 0 .0f ;
130130 break ;
131- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_ST428 : // 17
131+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_SMPTE428 : // 17
132132 tf->cutoff = -INFINITY;
133133 //
134134 tf->c0 = 1 .0f ;
@@ -141,14 +141,14 @@ static void CalcTransferFunction(uint16_t const transferCharacteristics, vImageT
141141 tf->c5 = 0 .0f ;
142142 break ;
143143 // Can't be represented by vImageTransferFunction. Use gamma 2.2 as a fallback.
144- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_ST2084 : // 16
145- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2100_HLG : // 18
146- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_LOG_100_1 : // 9
147- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_LOG_100_SQRT : // 10
144+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_SMPTE2084 : // 16
145+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_HLG : // 18
146+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_LOG100 : // 9
147+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_LOG100_SQRT10 : // 10
148148 //
149149 case AVIF_NCLX_TRANSFER_CHARACTERISTICS_UNKNOWN: // 0
150150 case AVIF_NCLX_TRANSFER_CHARACTERISTICS_UNSPECIFIED: // 2
151- case AVIF_NCLX_TRANSFER_CHARACTERISTICS_GAMMA22 : // 4
151+ case AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT470M : // 4
152152 default :
153153 tf->cutoff = -INFINITY;
154154 tf->c0 = 1 .0f ;
@@ -244,7 +244,7 @@ void SDAVIFCalcColorSpaceMono(avifImage * avif, CGColorSpaceRef* ref, BOOL* shou
244244 *shouldRelease = FALSE ;
245245 return ;
246246 }
247- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SRGB &&
247+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT709 &&
248248 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SRGB) {
249249 static CGColorSpaceRef sRGB = NULL ;
250250 static dispatch_once_t onceToken;
@@ -287,7 +287,7 @@ void SDAVIFCalcColorSpaceMono(avifImage * avif, CGColorSpaceRef* ref, BOOL* shou
287287 *shouldRelease = FALSE ;
288288 return ;
289289 }
290- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_P3 &&
290+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SMPTE432 /* Display P3 */ &&
291291 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SRGB) {
292292 static CGColorSpaceRef p3 = NULL ;
293293 static dispatch_once_t onceToken;
@@ -367,7 +367,7 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
367367 *shouldRelease = FALSE ;
368368 return ;
369369 }
370- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SRGB &&
370+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT709 /* sRGB */ &&
371371 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SRGB) {
372372 static CGColorSpaceRef sRGB = NULL ;
373373 static dispatch_once_t onceToken;
@@ -382,7 +382,7 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
382382 *shouldRelease = FALSE ;
383383 return ;
384384 }
385- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SRGB &&
385+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT709 /* sRGB */ &&
386386 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_LINEAR) {
387387 static CGColorSpaceRef sRGBlinear = NULL ;
388388 static dispatch_once_t onceToken;
@@ -428,8 +428,8 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
428428 *shouldRelease = FALSE ;
429429 return ;
430430 }
431- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT2100 &&
432- transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2100_HLG ) {
431+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT2020 &&
432+ transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_HLG ) {
433433 static CGColorSpaceRef bt2020hlg = NULL ;
434434 static dispatch_once_t onceToken;
435435 dispatch_once (&onceToken, ^{
@@ -443,8 +443,8 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
443443 *shouldRelease = FALSE ;
444444 return ;
445445 }
446- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT2100 &&
447- transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2100_PQ ) {
446+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_BT2020 &&
447+ transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SMPTE2084 /* PQ */ ) {
448448 static CGColorSpaceRef bt2020pq = NULL ;
449449 static dispatch_once_t onceToken;
450450 dispatch_once (&onceToken, ^{
@@ -458,7 +458,7 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
458458 *shouldRelease = FALSE ;
459459 return ;
460460 }
461- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_P3 &&
461+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SMPTE432 /* Display P3 */ &&
462462 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SRGB) {
463463 static CGColorSpaceRef p3 = NULL ;
464464 static dispatch_once_t onceToken;
@@ -473,8 +473,8 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
473473 *shouldRelease = FALSE ;
474474 return ;
475475 }
476- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_P3 &&
477- transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2100_HLG ) {
476+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SMPTE432 /* Display P3 */ &&
477+ transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_HLG ) {
478478 static CGColorSpaceRef p3hlg = NULL ;
479479 static dispatch_once_t onceToken;
480480 dispatch_once (&onceToken, ^{
@@ -489,8 +489,8 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
489489 *shouldRelease = FALSE ;
490490 return ;
491491 }
492- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_P3 &&
493- transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_BT2100_PQ ) {
492+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SMPTE432 /* Display P3 */ &&
493+ transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_SMPTE2084 /* PQ */ ) {
494494 static CGColorSpaceRef p3pq = NULL ;
495495 static dispatch_once_t onceToken;
496496 dispatch_once (&onceToken, ^{
@@ -504,7 +504,7 @@ void SDAVIFCalcColorSpaceRGB(avifImage * avif, CGColorSpaceRef* ref, BOOL* shoul
504504 *shouldRelease = FALSE ;
505505 return ;
506506 }
507- if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_P3 &&
507+ if (colorPrimaries == AVIF_NCLX_COLOUR_PRIMARIES_SMPTE432 /* Display P3 */ &&
508508 transferCharacteristics == AVIF_NCLX_TRANSFER_CHARACTERISTICS_LINEAR) {
509509 static CGColorSpaceRef p3linear = NULL ;
510510 static dispatch_once_t onceToken;
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