Don't import common sRGB IEC61966-2.1 ICC profile

srgb_iec61966.h

@@ -0,0 +1,203 @@
+#include <stdint.h>
+
+const char sRGB_IEC61966_content[] = {
+  0,   0,  12,  72,  76, 105, 110, 111,   2,  16,   0,   0, 109, 110, 116, 114,
+ 82,  71,  66,  32,  88,  89,  90,  32,   7, 206,   0,   2,   0,   9,   0,   6,
+  0,  49,   0,   0,  97,  99, 115, 112,  77,  83,  70,  84,   0,   0,   0,   0,
+ 73,  69,  67,  32, 115,  82,  71,  66,   0,   0,   0,   0,   0,   0,   0,   0,
+  0,   0,   0,   0,   0,   0, 246, 214,   0,   1,   0,   0,   0,   0, 211,  45,
+ 72,  80,  32,  32,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+  0,   0,   0,  17,  99, 112, 114, 116,   0,   0,   1,  80,   0,   0,   0,  51,
+100, 101, 115,  99,   0,   0,   1, 132,   0,   0,   0, 108, 119, 116, 112, 116,
+  0,   0,   1, 240,   0,   0,   0,  20,  98, 107, 112, 116,   0,   0,   2,   4,
+  0,   0,   0,  20, 114,  88,  89,  90,   0,   0,   2,  24,   0,   0,   0,  20,
+103,  88,  89,  90,   0,   0,   2,  44,   0,   0,   0,  20,  98,  88,  89,  90,
+  0,   0,   2,  64,   0,   0,   0,  20, 100, 109, 110, 100,   0,   0,   2,  84,
+  0,   0,   0, 112, 100, 109, 100, 100,   0,   0,   2, 196,   0,   0,   0, 136,
+118, 117, 101, 100,   0,   0,   3,  76,   0,   0,   0, 134, 118, 105, 101, 119,
+  0,   0,   3, 212,   0,   0,   0,  36, 108, 117, 109, 105,   0,   0,   3, 248,
+  0,   0,   0,  20, 109, 101,  97, 115,   0,   0,   4,  12,   0,   0,   0,  36,
+116, 101,  99, 104,   0,   0,   4,  48,   0,   0,   0,  12, 114,  84,  82,  67,
+  0,   0,   4,  60,   0,   0,   8,  12, 103,  84,  82,  67,   0,   0,   4,  60,
+  0,   0,   8,  12,  98,  84,  82,  67,   0,   0,   4,  60,   0,   0,   8,  12,
+116, 101, 120, 116,   0,   0,   0,   0,  67, 111, 112, 121, 114, 105, 103, 104,
+116,  32,  40,  99,  41,  32,  49,  57,  57,  56,  32,  72, 101, 119, 108, 101,
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+115,  82,  71,  66,  32,  73,  69,  67,  54,  49,  57,  54,  54,  45,  50,  46,
+ 49,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,  18, 115,  82,  71,
+ 66,  32,  73,  69,  67,  54,  49,  57,  54,  54,  45,  50,  46,  49,   0,   0,
+  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
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+ 88,  89,  90,  32,   0,   0,   0,   0,   0,   0, 243,  81,   0,   1,   0,   0,
+  0,   1,  22, 204,  88,  89,  90,  32,   0,   0,   0,   0,   0,   0,   0,   0,
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+  0,   0,   0,   0,   0,   0,  98, 153,   0,   0, 183, 133,   0,   0,  24, 218,
+ 88,  89,  90,  32,   0,   0,   0,   0,   0,   0,  36, 160,   0,   0,  15, 132,
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+105, 101,  99,  46,  99, 104,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
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+102,  97, 117, 108, 116,  32,  82,  71,  66,  32,  99, 111, 108, 111, 117, 114,
+ 32, 115, 112,  97,  99, 101,  32,  45,  32, 115,  82,  71,  66,   0,   0,   0,
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+ 45,  32, 115,  82,  71,  66,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
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+ 67,  54,  49,  57,  54,  54,  45,  50,  46,  49,   0,   0,   0,   0,   0,   0,
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+115, 105, 103,  32,   0,   0,   0,   0,  67,  82,  84,  32,  99, 117, 114, 118,
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+180,  37, 180, 156, 181,  19, 181, 138, 182,   1, 182, 121, 182, 240, 183, 104,
+183, 224, 184,  89, 184, 209, 185,  74, 185, 194, 186,  59, 186, 181, 187,  46,
+187, 167, 188,  33, 188, 155, 189,  21, 189, 143, 190,  10, 190, 132, 190, 255,
+191, 122, 191, 245, 192, 112, 192, 236, 193, 103, 193, 227, 194,  95, 194, 219,
+195,  88, 195, 212, 196,  81, 196, 206, 197,  75, 197, 200, 198,  70, 198, 195,
+199,  65, 199, 191, 200,  61, 200, 188, 201,  58, 201, 185, 202,  56, 202, 183,
+203,  54, 203, 182, 204,  53, 204, 181, 205,  53, 205, 181, 206,  54, 206, 182,
+207,  55, 207, 184, 208,  57, 208, 186, 209,  60, 209, 190, 210,  63, 210, 193,
+211,  68, 211, 198, 212,  73, 212, 203, 213,  78, 213, 209, 214,  85, 214, 216,
+215,  92, 215, 224, 216, 100, 216, 232, 217, 108, 217, 241, 218, 118, 218, 251,
+219, 128, 220,   5, 220, 138, 221,  16, 221, 150, 222,  28, 222, 162, 223,  41,
+223, 175, 224,  54, 224, 189, 225,  68, 225, 204, 226,  83, 226, 219, 227,  99,
+227, 235, 228, 115, 228, 252, 229, 132, 230,  13, 230, 150, 231,  31, 231, 169,
+232,  50, 232, 188, 233,  70, 233, 208, 234,  91, 234, 229, 235, 112, 235, 251,
+236, 134, 237,  17, 237, 156, 238,  40, 238, 180, 239,  64, 239, 204, 240,  88,
+240, 229, 241, 114, 241, 255, 242, 140, 243,  25, 243, 167, 244,  52, 244, 194,
+245,  80, 245, 222, 246, 109, 246, 251, 247, 138, 248,  25, 248, 168, 249,  56,
+249, 199, 250,  87, 250, 231, 251, 119, 252,   7, 252, 152, 253,  41, 253, 186,
+254,  75, 254, 220, 255, 109, 255, 255,
+};
+
+const size_t sRGB_IEC61966_content_size = sizeof(sRGB_IEC61966_content);

vips.c

@@ -1,4 +1,5 @@
 #include "vips.h"
+#include "srgb_iec61966.h"
 
 #define VIPS_SUPPORT_SMARTCROP \
   (VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 5))
@@ -215,9 +216,23 @@ vips_resize_with_premultiply(VipsImage *in, VipsImage **out, double scale) {
   return 0;
 }
 
+int
+vips_icc_is_srgb_iec61966(VipsImage *in) {
+  void *data;
+  size_t data_len;
+
+  if (vips_image_get_blob(in, VIPS_META_ICC_NAME, &data, &data_len))
+    return FALSE;
+
+  if (data_len != sRGB_IEC61966_content_size)
+    return FALSE;
+
+  return memcmp(data, (void *)sRGB_IEC61966_content, sRGB_IEC61966_content_size) == 0;
+}
+
 int
 vips_need_icc_import(VipsImage *in) {
-  return (vips_image_get_typeof(in, VIPS_META_ICC_NAME) ||
+  return ((vips_image_get_typeof(in, VIPS_META_ICC_NAME) && !vips_icc_is_srgb_iec61966(in)) ||
     in->Type == VIPS_INTERPRETATION_CMYK) &&
 		in->Coding == VIPS_CODING_NONE &&
 		(in->BandFmt == VIPS_FORMAT_UCHAR ||