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-rw-r--r--Makefile4
-rw-r--r--TODO2
-rw-r--r--common.h413
-rw-r--r--conversions.h382
-rw-r--r--convert-template.c633
-rw-r--r--double.c2
-rw-r--r--en_masse-template.c693
-rw-r--r--float.c2
-rw-r--r--libcolour-template.c12
-rw-r--r--long-double.c2
-rw-r--r--test.c99
11 files changed, 1122 insertions, 1122 deletions
diff --git a/Makefile b/Makefile
index 91fde95..3c55d18 100644
--- a/Makefile
+++ b/Makefile
@@ -12,10 +12,10 @@ OBJ =\
HDR =\
libcolour.h\
- common.h
+ common.h\
+ conversions.h
TEMPLATES =\
- convert-template.c\
en_masse-template.c\
libcolour-template.c
diff --git a/TODO b/TODO
index 4a19de7..00d583f 100644
--- a/TODO
+++ b/TODO
@@ -21,5 +21,5 @@ Colour models and colour spaces:
Support for generic additive colour spaces (3 channels and more)
Support for generic subtractive colour spaces (3 channels and more)
-Improve performance of libcolour_convert_en_masse
GPU accelerate libcolour_convert_en_masse
+Premulti matrices for faster conversion from and to RGB
diff --git a/common.h b/common.h
index 12c86a2..8e384c9 100644
--- a/common.h
+++ b/common.h
@@ -24,21 +24,6 @@
#define REGULAR(S, T) ((T) <= (S)->TRANSITION ? (S)->SLOPE * (T) : (1 + (S)->OFFSET) * xpow((T), 1 / (S)->GAMMA) - (S)->OFFSET)
#define INVREGULAR(S, T) ((T) <= (S)->TRANSITIONINV ? (T) / (S)->SLOPE : xpow(((T) + (S)->OFFSET) / (1 + (S)->OFFSET), (S)->GAMMA))
-#define XTRANSFORM(X, Y, Z, A, B, C, R1C1, R1C2, R1C3, R2C1, R2C2, R2C3, R3C1, R3C2, R3C3)\
- do {\
- TYPE a__ = (A), b__ = (B), c__ = (C);\
- (X) = (R1C1) * a__ + (R1C2) * b__ + (R1C3) * c__;\
- (Y) = (R2C1) * a__ + (R2C2) * b__ + (R2C3) * c__;\
- (Z) = (R3C1) * a__ + (R3C2) * b__ + (R3C3) * c__;\
- } while (0)
-
-#define TRANSFORM(X, Y, Z, A, B, C, R1C1, R1C2, R1C3, R2C1, R2C2, R2C3, R3C1, R3C2, R3C3)\
- XTRANSFORM((X), (Y), (Z), (A), (B), (C),\
- D(R1C1), D(R1C2), D(R1C3),\
- D(R2C1), D(R2C2), D(R2C3),\
- D(R3C1), D(R3C2), D(R3C3))
-
-
#define SLOPE transfer.regular.slope
#define TRANSITIONINV transfer.regular.transitioninv
@@ -53,404 +38,6 @@
#define TO_DECODED_BLUE transfer.custom.to_decoded_blue
-
-#define CIEXYZ_TO_RGB(FROM_X, FROM_Y, FROM_Z, TO_R, TO_G, TO_B, TO_MINV)\
- XTRANSFORM((TO_R), (TO_G), (TO_B), (FROM_X), (FROM_Y), (FROM_Z),\
- (TO_MINV)[0][0], (TO_MINV)[0][1], (TO_MINV)[0][2],\
- (TO_MINV)[1][0], (TO_MINV)[1][1], (TO_MINV)[1][2],\
- (TO_MINV)[2][0], (TO_MINV)[2][1], (TO_MINV)[2][2])
-
-#define CIEXYZ_TO_SRGB(FROM_X, FROM_Y, FROM_Z, TO_R, TO_G, TO_B)\
- TRANSFORM((TO_R), (TO_G), (TO_B), (FROM_X), (FROM_Y), (FROM_Z),\
- 3.240446254647737500675930277794, -1.537134761820080575134284117667, -0.498530193022728718155178739835,\
- -0.969266606244679751469561779231, 1.876011959788370209167851498933, 0.041556042214430065351304932619,\
- 0.055643503564352832235773149705, -0.204026179735960239147729566866, 1.057226567722703292062647051353)
-
-#define YIQ_TO_SRGB(FROM_Y, FROM_I, FROM_Q, TO_R, TO_G, TO_B)\
- TRANSFORM((TO_R), (TO_G), (TO_B), (FROM_Y), (FROM_I), (FROM_Q),\
- 1., 0.95629483232089407263032398986979387700557708740234, 0.62102512544472865396727456754888407886028289794922,\
- 1., -0.27212147408397735492968649850809015333652496337891, -0.64738095351761570928061928498209454119205474853516,\
- 1., -1.10698990856712820018969978264067322015762329101562, 1.70461497549882934343656870623817667365074157714844)
- /* ⎛1 1000 cos 33° / 877 1000 sin 33° / 877 ⎞
- ⎜1 9500 sin 33° / 24067 - 299000 * cos 33° / 514799 -9500 cos 33° / 24067 - 299000 * sin 33° / 514799⎟
- ⎝1 -250 sin 33° / 123 250 cos 33° / 123 ⎠
- */
-
-#define YDBDR_TO_SRGB(FROM_Y, FROM_DB, FROM_DR, TO_R, TO_G, TO_B)\
- TRANSFORM((TO_R), (TO_G), (TO_B), (FROM_Y), (FROM_DB), (FROM_DR),\
- 1., 0.000092303716148, -0.525912630661865,\
- 1., -0.129132898890509, 0.267899328207599,\
- 1., 0.664679059978955, -0.000079202543533)
-
-#define YPBPR_TO_SRGB(FROM_Y, FROM_PB, FROM_PR, TO_R, TO_G, TO_B)\
- do {\
- TYPE y__ = (FROM_Y);\
- TYPE r__ = (FROM_PR) + y__;\
- TYPE b__ = (FROM_PB) + y__;\
- (TO_R) = r__;\
- (TO_B) = b__;\
- (TO_G) = (y__ - r__ * D(0.2126) - b__ * D(0.0722)) / D(0.7152);\
- } while (0)
-
-#define YUV_TO_SRGB(FROM_Y, FROM_U, FROM_V, TO_R, TO_G, TO_B)\
- TRANSFORM((TO_R), (TO_G), (TO_B), (FROM_Y), (FROM_U), (FROM_V),\
- 1., 0.00028328010485821202317155420580263580632163211703, 1.14070449590558520291949662350816652178764343261719,\
- 1., -0.39630886669497211727275498560629785060882568359375, -0.58107364288228224857846271333983168005943298339844,\
- 1., 2.03990003507541306504435851820744574069976806640625, 0.00017179031692307700847528739718228507626918144524)
-
-#define YCGCO_TO_SRGB(FROM_Y, FROM_CG, FROM_CO, TO_R, TO_G, TO_B)\
- TRANSFORM((TO_R), (TO_G), (TO_B), (FROM_Y), (FROM_CG), (FROM_CO),\
- 1., -1., 1.,\
- 1., 1., 0.,\
- 1., -1., -1.)
-
-#define CIEXYZ_TO_CIEXYY(FROM_X, FROM_Y, FROM_Z, TO_X, TO_Y, TO_YY)\
- do {\
- TYPE x__ = (FROM_X), y__ = (FROM_Y), z__ = (FROM_Z);\
- TYPE s__ = x__ + y__ + z__;\
- x__ = x__ / s__;\
- s__ = y__ / s__;\
- if (WASDIV0(x__) || WASDIV0(s__))\
- x__ = s__ = 0;\
- (TO_X) = x__;\
- (TO_Y) = s__;\
- (TO_YY) = y__;\
- } while (0)
-
-#define RGB_TO_CIEXYZ(FROM_R, FROM_G, FROM_B, TO_X, TO_Y, TO_Z, FROM_M)\
- XTRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_R), (FROM_G), (FROM_B),\
- (FROM_M)[0][0], (FROM_M)[0][1], (FROM_M)[0][2],\
- (FROM_M)[1][0], (FROM_M)[1][1], (FROM_M)[1][2],\
- (FROM_M)[2][0], (FROM_M)[2][1], (FROM_M)[2][2])
-
-#define SRGB_TO_CIEXYZ(FROM_R, FROM_G, FROM_B, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_R), (FROM_G), (FROM_B),\
- 0.412457445582367576708548995157, 0.357575865245515878143578447634, 0.180437247826399665973085006954,\
- 0.212673370378408277403536885686, 0.715151730491031756287156895269, 0.072174899130559869164791564344,\
- 0.019333942761673460208893260415, 0.119191955081838593666354597644, 0.950302838552371742508739771438)
-
-#define CIEXYY_TO_CIEXYZ(FROM_X, FROM_Y, FROM_YY, TO_X, TO_Y, TO_Z)\
- do {\
- TYPE x__ = (FROM_X), y__ = (FROM_Y), Y__ = (FROM_YY);\
- TYPE Yy__ = Y__ / y__;\
- if (WASDIV0(Yy__)) {\
- (TO_X) = (TO_Y) = (TO_Z) = Y__;\
- } else {\
- (TO_X) = x__ * Yy__;\
- (TO_Y) = Y__;\
- (TO_Z) = (1 - x__ - y__) * Yy__;\
- }\
- } while (0)
-
-#define CIELAB_TO_CIEXYZ(FROM_L, FROM_A, FROM_B, TO_X, TO_Y, TO_Z)\
- do {\
- TYPE Y__ = ((FROM_L) + 16) / 116;\
- TYPE X__ = Y__ + (FROM_A) / 500;\
- TYPE Z__ = Y__ - (FROM_B) / 200;\
- (TO_X) = cielab_finv(X__) * D(0.95047);\
- (TO_Y) = cielab_finv(Y__);\
- (TO_Z) = cielab_finv(Z__) * D(1.08883);\
- } while (0)
-
-#define CIELUV_TO_CIEXYZ(FROM_L, FROM_U, FROM_V, TO_X, TO_Y, TO_Z, FROM_WHITE_X, FROM_WHITE_Y, FROM_WHITE_Z)\
- do {\
- TYPE L__ = (FROM_L), X__ = (FROM_WHITE_X), Y__ = (FROM_WHITE_Y), Z__ = (FROM_WHITE_Z);\
- TYPE L13__ = L__ * 13;\
- TYPE t__ = X__ + 15 * Y__ + 3 * Z__;\
- TYPE u__ = (FROM_U) / L13__ + 4 * X__ / t__;\
- TYPE v__ = (FROM_V) / L13__ + 9 * Y__ / t__;\
- if (L__ <= 8) {\
- Y__ *= L__ * 27 / 24389;\
- } else {\
- L__ = (L__ + 16) / 116;\
- Y__ *= L__ * L__ * L__;\
- }\
- (TO_X) = D(2.25) * Y__ * u__ / v__;\
- (TO_Y) = Y__;\
- (TO_Z) = Y__ * (3 / v__ - D(0.75) * u__ / v__ - 5);\
- } while (0)
-
-#define YIQ_TO_CIEXYZ(FROM_Y, FROM_I, FROM_Q, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_Y), (FROM_I), (FROM_Q),\
- 0.95047055865428309306963683411595411598682403564453,\
- 0.09738463974178063198294807989441324025392532348633,\
- 0.33223466706854809515903070860076695680618286132812,\
- 0.99999999999999988897769753748434595763683319091797,\
- -0.07112658301916767455974621725545148365199565887451,\
- -0.20786968876398304040264974901219829916954040527344,\
- 1.08882873639588373393394249433185905218124389648438,\
- -1.06592139332461721679123911599162966012954711914062,\
- 1.55474471255181900808395312196807935833930969238281)
-
-#define YDBDR_TO_CIEXYZ(FROM_Y, FROM_DB, FROM_DR, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_Y), (FROM_DB), (FROM_DR),\
- 0.95047055865428309306963683411595411598682403564453,\
- 0.07379612357298576119646327242662664502859115600586,\
- -0.12113653724874726136384595065464964136481285095215,\
- 0.99999999999999988897769753748434595763683319091797,\
- -0.04435684145428285540813106990754022262990474700928,\
- 0.07973534004202506575431641522300196811556816101074,\
- 1.08882873639588373393394249433185905218124389648438,\
- 0.61625657933494271123464613992837257683277130126953,\
- 0.02168821359337728266192257819966471288353204727173)
-
-#define YUV_TO_CIEXYZ(FROM_Y, FROM_U, FROM_V, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_Y), (FROM_U), (FROM_V),\
- 0.95047055865428309306963683411595411598682403564453,\
- 0.22648030324549334180161963558930438011884689331055,\
- 0.26274514929253273143316960158699657768011093139648,\
- 0.99999999999999988897769753748434595763683319091797,\
- -0.13613114642319409930415474718756740912795066833496,\
- -0.17294595255115238763288232348713790997862815856934,\
- 1.08882873639588373393394249433185905218124389648438,\
- 1.89129144197893928058817891724174842238426208496094,\
- -0.04704173528403532422714761196402832865715026855469)
-
-#define YPBPR_TO_CIEXYZ(FROM_Y, FROM_PB, FROM_PR, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_Y), (FROM_PB), (FROM_PR),\
- 0.95047055865428298204733437160030007362365722656250,\
- 0.14433968424876231217979238863335922360420227050781,\
- 0.30616461986760712399302519770571961998939514160156,\
- 0.99999999999999977795539507496869191527366638183594,\
- -0.00002022802471486617736928792510298080742359161377,\
- 0.00008771894888734421691367515450110659003257751465,\
- 1.08882873639588373393394249433185905218124389648438,\
- 0.93827031735982591165168287261622026562690734863281,\
- -0.01609699914324668607035206946420657914131879806519)
-
-#define YCGCO_TO_CIEXYZ(FROM_Y, FROM_CG, FROM_CO, TO_X, TO_Y, TO_Z)\
- TRANSFORM((TO_X), (TO_Y), (TO_Z), (FROM_Y), (FROM_CG), (FROM_CO),\
- 0.95047055865428309306963683411595411598682403564453,\
- -0.23531882816325136453805555447615915909409523010254,\
- 0.23202019775596791073546398820326430723071098327637,\
- 0.99999999999999988897769753748434595763683319091797,\
- 0.43030346098206362359661625305307097733020782470703,\
- 0.14049847124784842211653312915586866438388824462891,\
- 1.08882873639588373393394249433185905218124389648438,\
- -0.85044482623220662986796014592982828617095947265625,\
- -0.93096889579069830311652822274481877684593200683594)
-
-#define CIE1960UCS_TO_CIEXYZ(FROM_U, FROM_V, FROM_Y, TO_X, TO_Y, TO_Z)\
- do {\
- TYPE u__ = (FROM_U), v__ = (FROM_V), Y__ = (FROM_Y);\
- (TO_X) = D(1.5) * Y__ * u__ / v__;\
- (TO_Y) = Y__;\
- (TO_Z) = (4 * Y__ - Y__ * u__ - 10 * Y__ * v__) / (2 * v__);\
- } while (0)
-
-#define CIEXYZ_TO_CIELAB(FROM_X, FROM_Y, FROM_Z, TO_L, TO_A, TO_B)\
- do {\
- TYPE X__ = (FROM_X), Y__ = (FROM_Y), Z__ = (FROM_Z);\
- X__ /= D(0.95047);\
- Z__ /= D(1.08883);\
- Y__ = cielab_f(Y__);\
- (TO_L) = 116 * Y__ - 16;\
- (TO_A) = 500 * (cielab_f(X__) - Y__);\
- (TO_B) = 200 * (Y__ - cielab_f(Z__));\
- } while (0)
-
-#define CIEXYZ_TO_CIELUV(FROM_X, FROM_Y, FROM_Z, TO_L, TO_U, TO_V, TO_WHITE_X, TO_WHITE_Y, TO_WHITE_Z)\
- do {\
- TYPE WX__ = (TO_WHITE_X), WY__ = (TO_WHITE_Y), WZ__ = (TO_WHITE_Z);\
- TYPE X__ = (FROM_X), Y__ = (FROM_Y), Z__ = (FROM_Z);\
- TYPE L2__, L__, u__, v__, t__;\
- t__ = WX__ + 15 * WY__ + 3 * WZ__;\
- u__ = 4 * WX__ / t__;\
- v__ = 9 * WY__ / t__;\
- t__ = X__ + 15 * Y__ + 3 * Z__;\
- u__ = 4 * X__ / t__ - u__;\
- v__ = 9 * Y__ / t__ - v__;\
- L__ = Y__ / WY__;\
- L2__ = L__ * 24389;\
- L__ = L2__ <= 216 ? L2__ / 27 : xcbrt(L__) * 116 - 16;\
- (TO_L) = L__;\
- L__ *= 13;\
- (TO_U) = u__ * L__;\
- (TO_V) = v__ * L__;\
- } while (0)
-
-#define CIELCHUV_TO_CIELUV(FROM_L, FROM_C, FROM_H, TO_L, TO_U, TO_V)\
- do {\
- TYPE C__ = (FROM_C), h__ = (FROM_H);\
- (TO_L) = (FROM_L);\
- (TO_U) = C__ * xcos(h__);\
- (TO_V) = C__ * xsin(h__);\
- } while (0)
-
-#define CIELUV_TO_CIELCHUV(FROM_L, FROM_U, FROM_V, TO_L, TO_C, TO_H, TO_ONE_REVOLUTION)\
- do {\
- TYPE u__ = (FROM_U), v__ = (FROM_V), rev__ = (TO_ONE_REVOLUTION), h__;\
- (TO_L) = (FROM_L);\
- (TO_C) = xsqrt(u__ * u__ + v__ * v__);\
- h__ = xatan2(v__, u__) / PI2 * rev__;\
- if (!WASDIV0(h__) && (h__ < 0))\
- h__ += rev__;\
- (TO_H) = h__;\
- } while (0)
-
-#define SRGB_TO_YIQ(FROM_R, FROM_G, FROM_B, TO_Y, TO_I, TO_Q)\
- TRANSFORM((TO_Y), (TO_I), (TO_Q), (FROM_R), (FROM_G), (FROM_B),\
- 0.299, 0.587, 0.114,\
- 0.59571613491277464191853141528554260730743408203125, /* (0.877 cos 33°)(1 - 0.299) - (0.492 sin 33°)(-0.299) */\
- -0.27445283783925644716106262421817518770694732666016, /* (0.877 cos 33°)(-0.587) - (0.492 sin 33°)(-0.587) */\
- -0.32126329707351808373516632855171337723731994628906, /* (0.877 cos 33°)(-0.114) - (0.492 sin 33°)(1 - 0.114) */\
- 0.21145640212011795888713550084503367543220520019531, /* (0.877 sin 33°)(1 - 0.299) + (0.492 cos 33°)(-0.299) */\
- -0.52259104529161115593183239980135113000869750976562, /* (0.877 sin 33°)(-0.587) + (0.492 cos 33°)(-0.587) */\
- 0.31113464317149330806699936147197149693965911865234) /* (0.877 sin 33°)(-0.114) + (0.492 cos 33°)(1 - 0.114) */
-
-#define CIEXYZ_TO_YIQ(FROM_X, FROM_Y, FROM_Z, TO_Y, TO_I, TO_Q)\
- TRANSFORM((TO_Y), (TO_I), (TO_Q), (FROM_X), (FROM_Y), (FROM_Z),\
- 0.40627729168038273499519164033699780702590942382812,\
- 0.61835674212166968910509012857801280915737152099609,\
- -0.00414330221353725880462093300593551248311996459961,\
- 2.17852787350219845308174626552499830722808837890625,\
- -1.36502666214454104753883711964590474963188171386719,\
- -0.64803574634025240541745915834326297044754028320312,\
- 1.20905577682138853923277110880007967352867126464844,\
- -1.36890364998339797431015085749095305800437927246094,\
- 0.20180559439597040016778350945969577878713607788086)
-
-#define SRGB_TO_YDBDR(FROM_R, FROM_G, FROM_B, TO_Y, TO_DB, TO_DR)\
- TRANSFORM((TO_Y), (TO_DB), (TO_DR), (FROM_R), (FROM_G), (FROM_B),\
- 0.299, 0.587, 0.114,\
- -0.450, -0.883, 1.333,\
- -1.333, 1.116, 0.217)
-
-#define YUV_TO_YDBDR(FROM_Y, FROM_U, FROM_V, TO_Y, TO_DB, TO_DR)\
- do {\
- TYPE U__ = (FROM_U), V__ = (FROM_V);\
- (TO_Y) = (FROM_Y);\
- (TO_DB) = U__ * D(3.069);\
- (TO_DR) = V__ * D(-2.169);\
- } while (0)
-
-#define CIEXYZ_TO_YDBDR(FROM_X, FROM_Y, FROM_Z, TO_Y, TO_DB, TO_DR)\
- TRANSFORM((TO_Y), (TO_DB), (TO_DR), (FROM_X), (FROM_Y), (FROM_Z),\
- 0.40627729168038273499519164033699780702590942382812,\
- 0.61835674212166968910509012857801280915737152099609,\
- -0.00414330221353725880462093300593551248311996459961,\
- -0.52816561102614745237815441214479506015777587890625,\
- -1.23677481526212962315014465275453403592109680175781,\
- 1.59692761635924940222253098909277468919754028320312,\
- -5.38914174974103143966885909321717917919158935546875,\
- 4.09835630362728497999569299281574785709381103515625,\
- 0.94033545560642795013706063400604762136936187744141)
-
-#define YDBDR_TO_YUV(FROM_Y, FROM_DB, FROM_DR, TO_Y, TO_U, TO_V)\
- do {\
- TYPE DB__ = (FROM_DB), DR__ = (FROM_DR);\
- (TO_Y) = (FROM_Y);\
- (TO_U) = DB__ / D(3.069);\
- (TO_V) = DR__ / D(-2.169);\
- } while (0)
-
-#define SRGB_TO_YUV(FROM_R, FROM_G, FROM_B, TO_Y, TO_U, TO_V)\
- TRANSFORM((TO_Y), (TO_U), (TO_V), (FROM_R), (FROM_G), (FROM_B),\
- 0.29899999999999998800959133404830936342477798461914,\
- 0.58699999999999996624922005139524117112159729003906,\
- 0.11400000000000000410782519111307919956743717193604,\
- -0.14662756598240470062854967636667424812912940979004,\
- -0.28771586836102963635752871596196200698614120483398,\
- 0.43434343434343436474165400795754976570606231689453,\
- 0.61456892577224520035628074765554629266262054443359,\
- -0.51452282157676354490405401520547457039356231689453,\
- -0.10004610419548178035231700278018251992762088775635)
-
-#define CIEXYZ_TO_YUV(FROM_X, FROM_Y, FROM_Z, TO_Y, TO_U, TO_V)\
- TRANSFORM((TO_Y), (TO_U), (TO_V), (FROM_X), (FROM_Y), (FROM_Z),\
- 0.40627729168038273499519164033699780702590942382812,\
- 0.61835674212166968910509012857801280915737152099609,\
- -0.00414330221353725880462093300593551248311996459961,\
- -0.17209697328971895746718701047939248383045196533203,\
- -0.40298951295605395239718404809536878019571304321289,\
- 0.52034135430408912093014350830344483256340026855469,\
- 2.48462044709130047692724474472925066947937011718750,\
- -1.88951420176453876997868519538315013051033020019531,\
- -0.43353409663735725798616726933687459677457809448242)
-
-#define SRGB_TO_YPBPR(FROM_R, FROM_G, FROM_B, TO_Y, TO_PB, TO_PR)\
- do {\
- TYPE R__ = (FROM_R), G__ = (FROM_G), B__ = (FROM_B);\
- (TO_Y) = R__ * D(0.2126) +\
- G__ * D(0.7152) +\
- B__ * D(0.0722);\
- (TO_PB) = B__ - to->Y;\
- (TO_PR) = R__ - to->Y;\
- } while (0)
-
-#define CIEXYZ_TO_YPBPR(FROM_X, FROM_Y, FROM_Z, TO_Y, TO_PB, TO_PR)\
- TRANSFORM((TO_Y), (TO_PB), (TO_PR), (FROM_X), (FROM_Y), (FROM_Z),\
- -0.00028314209073960778378920011277841695118695497513,\
- 1.00019821310075673892470149439759552478790283203125,\
- 0.00006512054470741990286342115723527967929840087891,\
- 0.05592664565509243568275365987574332393705844879150,\
- -1.20422439283671711685030913940863683819770812988281,\
- 1.05716144717799576113748116767965257167816162109375,\
- 3.24072939673847715269516811531502753496170043945312,\
- -2.53733297492083753610359053709544241428375244140625,\
- -0.49859531356743613805804216099204495549201965332031)
-
-#define SRGB_TO_YCGCO(FROM_R, FROM_G, FROM_B, TO_Y, TO_CG, TO_CO)\
- TRANSFORM((TO_Y), (TO_CG), (TO_CO), (FROM_R), (FROM_G), (FROM_B),\
- 0.25, 0.50, 0.25,\
- -0.25, 0.50, -0.25,\
- 0.50, 0., -0.50)
-
-#define CIEXYZ_TO_YCGCO(FROM_X, FROM_Y, FROM_Z, TO_Y, TO_CG, TO_CO)\
- TRANSFORM((TO_Y), (TO_CG), (TO_CO), (FROM_X), (FROM_Y), (FROM_Z),\
- 0.33938913643068269188063368346774950623512268066406,\
- 0.50271574450517486631895280879689380526542663574219,\
- 0.16045211478220866574417868832824751734733581542969,\
- -1.30865574267536244335019546269904822111129760742188,\
- 1.37329621528319534284889869013568386435508728027344,\
- -0.11889607256777862120955546743061859160661697387695,\
- 1.59240137554169236544510113162687048316001892089844,\
- -0.66655429104206020962664069884340278804302215576172,\
- -0.77787838037271606062006412685150280594825744628906)
-
-#define CIEUVW_TO_CIE1960UCS(FROM_U, FROM_V, FROM_W, TO_U, TO_V, TO_Y, FROM_U0, FROM_V0)\
- do {\
- TYPE U__ = (FROM_U), V__ = (FROM_V), W__ = (FROM_W), Y__;\
- Y__ = (W__ + 17) / 25;\
- Y__ *= Y__ * Y__;\
- W__ *= 13;\
- (TO_U) = U__ / W__ + (FROM_U0);\
- (TO_V) = V__ / W__ + (FROM_V0);\
- (TO_Y) = Y__;\
- } while (0)
-
-#define CIEXYZ_TO_CIE1960UCS(FROM_X, FROM_Y, FROM_Z, TO_U, TO_V, TO_Y)\
- do {\
- TYPE X__ = (FROM_X), Y__ = (FROM_Y), w__;\
- w__ = X__ + 15 * Y__ + 3 * (FROM_Z);\
- (TO_U) = 4 * X__ / w__;\
- (TO_V) = 6 * Y__ / w__;\
- (TO_Y) = Y__;\
- } while (0)
-
-#define CIEUVW_TO_CIEUVW(FROM_U, FROM_V, FROM_W, TO_U, TO_V, TO_W, FROM_U0, FROM_V0, TO_U0, TO_V0)\
- do {\
- TYPE U__ = (FROM_U), V__ = (FROM_V), W__ = (FROM_W);\
- TYPE w__ = W__ * 13;\
- U__ += w__ * ((FROM_U0) - (TO_U0));\
- V__ += w__ * ((FROM_V0) - (TO_V0));\
- (TO_U) = U__;\
- (TO_V) = V__;\
- (TO_W) = W__;\
- } while (0)
-
-#define CIE1960UCS_TO_CIEUVW(FROM_U, FROM_V, FROM_Y, TO_U, TO_V, TO_W, TO_U0, TO_V0)\
- do {\
- TYPE U__ = (FROM_U), V__ = (FROM_V), u0__ = (TO_U0), v0__ = (TO_V0);\
- TYPE Y__ = 25 * xcbrt((FROM_Y)) - 17;\
- TYPE w__ = Y__ * 13;\
- (to->U) = w__ * (U__ - u0__);\
- (to->V) = w__ * (V__ - v0__);\
- (to->W) = Y__;\
- } while (0)
-
-
-
static inline TYPE
srgb_encode(TYPE t)
{
diff --git a/conversions.h b/conversions.h
new file mode 100644
index 0000000..99261e9
--- /dev/null
+++ b/conversions.h
@@ -0,0 +1,382 @@
+/* See LICENSE file for copyright and license details. */
+
+#define MATRIX(M11, M12, M13, M21, M22, M23, M31, M32, M33)\
+ D(M11), D(M12), D(M13),\
+ D(M21), D(M22), D(M23),\
+ D(M31), D(M32), D(M33)
+
+
+
+#define CIEXYZ_TO_RGB(TO_MINV)\
+ (TO_MINV)[0][0], (TO_MINV)[0][1], (TO_MINV)[0][2],\
+ (TO_MINV)[1][0], (TO_MINV)[1][1], (TO_MINV)[1][2],\
+ (TO_MINV)[2][0], (TO_MINV)[2][1], (TO_MINV)[2][2]
+
+#define CIEXYZ_TO_SRGB\
+ MATRIX( 3.240446254647737500675930277794, -1.537134761820080575134284117667, -0.498530193022728718155178739835,\
+ -0.969266606244679751469561779231, 1.876011959788370209167851498933, 0.041556042214430065351304932619,\
+ 0.055643503564352832235773149705, -0.204026179735960239147729566866, 1.057226567722703292062647051353)
+
+#define YIQ_TO_SRGB\
+ MATRIX(1., 0.95629483232089407263032398986979387700557708740234, 0.62102512544472865396727456754888407886028289794922,\
+ 1., -0.27212147408397735492968649850809015333652496337891, -0.64738095351761570928061928498209454119205474853516,\
+ 1., -1.10698990856712820018969978264067322015762329101562, 1.70461497549882934343656870623817667365074157714844)
+ /* ⎛1 1000 cos 33° / 877 1000 sin 33° / 877 ⎞
+ ⎜1 9500 sin 33° / 24067 - 299000 * cos 33° / 514799 -9500 cos 33° / 24067 - 299000 * sin 33° / 514799⎟
+ ⎝1 -250 sin 33° / 123 250 cos 33° / 123 ⎠
+ */
+
+#define YDBDR_TO_SRGB\
+ MATRIX(1., 0.000092303716148, -0.525912630661865,\
+ 1., -0.129132898890509, 0.267899328207599,\
+ 1., 0.664679059978955, -0.000079202543533)
+
+#define YPBPR_TO_SRGB(FROM_Y, FROM_PB, FROM_PR, TO_R, TO_G, TO_B)\
+ do {\
+ TYPE y__ = (FROM_Y);\
+ TYPE r__ = (FROM_PR) + y__;\
+ TYPE b__ = (FROM_PB) + y__;\
+ (TO_R) = r__;\
+ (TO_B) = b__;\
+ (TO_G) = (y__ - r__ * D(0.2126) - b__ * D(0.0722)) / D(0.7152);\
+ } while (0)
+
+#define YUV_TO_SRGB\
+ MATRIX(1., 0.00028328010485821202317155420580263580632163211703, 1.14070449590558520291949662350816652178764343261719,\
+ 1., -0.39630886669497211727275498560629785060882568359375, -0.58107364288228224857846271333983168005943298339844,\
+ 1., 2.03990003507541306504435851820744574069976806640625, 0.00017179031692307700847528739718228507626918144524)
+
+#define YCGCO_TO_SRGB\
+ MATRIX(1., -1., 1.,\
+ 1., 1., 0.,\
+ 1., -1., -1.)
+
+#define CIEXYZ_TO_CIEXYY(FROM_X, FROM_Y, FROM_Z, TO_X, TO_Y, TO_YY)\
+ do {\
+ TYPE x__ = (FROM_X), y__ = (FROM_Y), z__ = (FROM_Z);\
+ TYPE s__ = x__ + y__ + z__;\
+ x__ = x__ / s__;\
+ s__ = y__ / s__;\
+ if (WASDIV0(x__) || WASDIV0(s__))\
+ x__ = s__ = 0;\
+ (TO_X) = x__;\
+ (TO_Y) = s__;\
+ (TO_YY) = y__;\
+ } while (0)
+
+#define RGB_TO_CIEXYZ(FROM_M)\
+ (FROM_M)[0][0], (FROM_M)[0][1], (FROM_M)[0][2],\
+ (FROM_M)[1][0], (FROM_M)[1][1], (FROM_M)[1][2],\
+ (FROM_M)[2][0], (FROM_M)[2][1], (FROM_M)[2][2]
+
+#define SRGB_TO_CIEXYZ\
+ MATRIX(0.412457445582367576708548995157, 0.357575865245515878143578447634, 0.180437247826399665973085006954,\
+ 0.212673370378408277403536885686, 0.715151730491031756287156895269, 0.072174899130559869164791564344,\
+ 0.019333942761673460208893260415, 0.119191955081838593666354597644, 0.950302838552371742508739771438)
+
+#define CIEXYY_TO_CIEXYZ(FROM_X, FROM_Y, FROM_YY, TO_X, TO_Y, TO_Z)\
+ do {\
+ TYPE x__ = (FROM_X), y__ = (FROM_Y), Y__ = (FROM_YY);\
+ TYPE Yy__ = Y__ / y__;\
+ if (WASDIV0(Yy__)) {\
+ (TO_X) = (TO_Y) = (TO_Z) = Y__;\
+ } else {\
+ (TO_X) = x__ * Yy__;\
+ (TO_Y) = Y__;\
+ (TO_Z) = (1 - x__ - y__) * Yy__;\
+ }\
+ } while (0)
+
+#define CIELAB_TO_CIEXYZ(FROM_L, FROM_A, FROM_B, TO_X, TO_Y, TO_Z)\
+ do {\
+ TYPE Y__ = ((FROM_L) + 16) / 116;\
+ TYPE X__ = Y__ + (FROM_A) / 500;\
+ TYPE Z__ = Y__ - (FROM_B) / 200;\
+ (TO_X) = cielab_finv(X__) * D(0.95047);\
+ (TO_Y) = cielab_finv(Y__);\
+ (TO_Z) = cielab_finv(Z__) * D(1.08883);\
+ } while (0)
+
+#define CIELUV_TO_CIEXYZ(FROM_L, FROM_U, FROM_V, TO_X, TO_Y, TO_Z, FROM_WHITE_X, FROM_WHITE_Y, FROM_WHITE_Z)\
+ do {\
+ TYPE L__ = (FROM_L), X__ = (FROM_WHITE_X), Y__ = (FROM_WHITE_Y), Z__ = (FROM_WHITE_Z);\
+ TYPE L13__ = L__ * 13;\
+ TYPE t__ = X__ + 15 * Y__ + 3 * Z__;\
+ TYPE u__ = (FROM_U) / L13__ + 4 * X__ / t__;\
+ TYPE v__ = (FROM_V) / L13__ + 9 * Y__ / t__;\
+ if (L__ <= 8) {\
+ Y__ *= L__ * 27 / 24389;\
+ } else {\
+ L__ = (L__ + 16) / 116;\
+ Y__ *= L__ * L__ * L__;\
+ }\
+ (TO_X) = D(2.25) * Y__ * u__ / v__;\
+ (TO_Y) = Y__;\
+ (TO_Z) = Y__ * (3 / v__ - D(0.75) * u__ / v__ - 5);\
+ } while (0)
+
+#define YIQ_TO_CIEXYZ\
+ MATRIX( 0.95047055865428309306963683411595411598682403564453,\
+ 0.09738463974178063198294807989441324025392532348633,\
+ 0.33223466706854809515903070860076695680618286132812,\
+ 0.99999999999999988897769753748434595763683319091797,\
+ -0.07112658301916767455974621725545148365199565887451,\
+ -0.20786968876398304040264974901219829916954040527344,\
+ 1.08882873639588373393394249433185905218124389648438,\
+ -1.06592139332461721679123911599162966012954711914062,\
+ 1.55474471255181900808395312196807935833930969238281)
+
+#define YDBDR_TO_CIEXYZ\
+ MATRIX( 0.95047055865428309306963683411595411598682403564453,\
+ 0.07379612357298576119646327242662664502859115600586,\
+ -0.12113653724874726136384595065464964136481285095215,\
+ 0.99999999999999988897769753748434595763683319091797,\
+ -0.04435684145428285540813106990754022262990474700928,\
+ 0.07973534004202506575431641522300196811556816101074,\
+ 1.08882873639588373393394249433185905218124389648438,\
+ 0.61625657933494271123464613992837257683277130126953,\
+ 0.02168821359337728266192257819966471288353204727173)
+
+#define YUV_TO_CIEXYZ\
+ MATRIX( 0.95047055865428309306963683411595411598682403564453,\
+ 0.22648030324549334180161963558930438011884689331055,\
+ 0.26274514929253273143316960158699657768011093139648,\
+ 0.99999999999999988897769753748434595763683319091797,\
+ -0.13613114642319409930415474718756740912795066833496,\
+ -0.17294595255115238763288232348713790997862815856934,\
+ 1.08882873639588373393394249433185905218124389648438,\
+ 1.89129144197893928058817891724174842238426208496094,\
+ -0.04704173528403532422714761196402832865715026855469)
+
+#define YPBPR_TO_CIEXYZ\
+ MATRIX( 0.95047055865428298204733437160030007362365722656250,\
+ 0.14433968424876231217979238863335922360420227050781,\
+ 0.30616461986760712399302519770571961998939514160156,\
+ 0.99999999999999977795539507496869191527366638183594,\
+ -0.00002022802471486617736928792510298080742359161377,\
+ 0.00008771894888734421691367515450110659003257751465,\
+ 1.08882873639588373393394249433185905218124389648438,\
+ 0.93827031735982591165168287261622026562690734863281,\
+ -0.01609699914324668607035206946420657914131879806519)
+
+#define YCGCO_TO_CIEXYZ\
+ MATRIX( 0.95047055865428309306963683411595411598682403564453,\
+ -0.23531882816325136453805555447615915909409523010254,\
+ 0.23202019775596791073546398820326430723071098327637,\
+ 0.99999999999999988897769753748434595763683319091797,\
+ 0.43030346098206362359661625305307097733020782470703,\
+ 0.14049847124784842211653312915586866438388824462891,\
+ 1.08882873639588373393394249433185905218124389648438,\
+ -0.85044482623220662986796014592982828617095947265625,\
+ -0.93096889579069830311652822274481877684593200683594)
+
+#define CIE1960UCS_TO_CIEXYZ(FROM_U, FROM_V, FROM_Y, TO_X, TO_Y, TO_Z)\
+ do {\
+ TYPE u__ = (FROM_U), v__ = (FROM_V), Y__ = (FROM_Y);\
+ (TO_X) = D(1.5) * Y__ * u__ / v__;\
+ (TO_Y) = Y__;\
+ (TO_Z) = (4 * Y__ - Y__ * u__ - 10 * Y__ * v__) / (2 * v__);\
+ } while (0)
+
+#define CIEXYZ_TO_CIELAB(FROM_X, FROM_Y, FROM_Z, TO_L, TO_A, TO_B)\
+ do {\
+ TYPE X__ = (FROM_X), Y__ = (FROM_Y), Z__ = (FROM_Z);\
+ X__ /= D(0.95047);\
+ Z__ /= D(1.08883);\
+ Y__ = cielab_f(Y__);\
+ (TO_L) = 116 * Y__ - 16;\
+ (TO_A) = 500 * (cielab_f(X__) - Y__);\
+ (TO_B) = 200 * (Y__ - cielab_f(Z__));\
+ } while (0)
+
+#define CIEXYZ_TO_CIELUV(FROM_X, FROM_Y, FROM_Z, TO_L, TO_U, TO_V, TO_WHITE_X, TO_WHITE_Y, TO_WHITE_Z)\
+ do {\
+ TYPE WX__ = (TO_WHITE_X), WY__ = (TO_WHITE_Y), WZ__ = (TO_WHITE_Z);\
+ TYPE X__ = (FROM_X), Y__ = (FROM_Y), Z__ = (FROM_Z);\
+ TYPE L2__, L__, u__, v__, t__;\
+ t__ = WX__ + 15 * WY__ + 3 * WZ__;\
+ u__ = 4 * WX__ / t__;\
+ v__ = 9 * WY__ / t__;\
+ t__ = X__ + 15 * Y__ + 3 * Z__;\
+ u__ = 4 * X__ / t__ - u__;\
+ v__ = 9 * Y__ / t__ - v__;\
+ L__ = Y__ / WY__;\
+ L2__ = L__ * 24389;\
+ L__ = L2__ <= 216 ? L2__ / 27 : xcbrt(L__) * 116 - 16;\
+ (TO_L) = L__;\
+ L__ *= 13;\
+ (TO_U) = u__ * L__;\
+ (TO_V) = v__ * L__;\
+ } while (0)
+
+#define CIELCHUV_TO_CIELUV(FROM_L, FROM_C, FROM_H, TO_L, TO_U, TO_V)\
+ do {\
+ TYPE C__ = (FROM_C), h__ = (FROM_H);\
+ (TO_L) = (FROM_L);\
+ (TO_U) = C__ * xcos(h__);\
+ (TO_V) = C__ * xsin(h__);\
+ } while (0)
+
+#define CIELUV_TO_CIELCHUV(FROM_L, FROM_U, FROM_V, TO_L, TO_C, TO_H, TO_ONE_REVOLUTION)\
+ do {\
+ TYPE u__ = (FROM_U), v__ = (FROM_V), rev__ = (TO_ONE_REVOLUTION), h__;\
+ (TO_L) = (FROM_L);\
+ (TO_C) = xsqrt(u__ * u__ + v__ * v__);\
+ h__ = xatan2(v__, u__) / PI2 * rev__;\
+ if (!WASDIV0(h__) && (h__ < 0))\
+ h__ += rev__;\
+ (TO_H) = h__;\
+ } while (0)
+
+#define SRGB_TO_YIQ\
+ MATRIX( 0.299, 0.587, 0.114,\
+ 0.59571613491277464191853141528554260730743408203125, /* (0.877 cos 33°)(1 - 0.299) - (0.492 sin 33°)(-0.299) */\
+ -0.27445283783925644716106262421817518770694732666016, /* (0.877 cos 33°)(-0.587) - (0.492 sin 33°)(-0.587) */\
+ -0.32126329707351808373516632855171337723731994628906, /* (0.877 cos 33°)(-0.114) - (0.492 sin 33°)(1 - 0.114) */\
+ 0.21145640212011795888713550084503367543220520019531, /* (0.877 sin 33°)(1 - 0.299) + (0.492 cos 33°)(-0.299) */\
+ -0.52259104529161115593183239980135113000869750976562, /* (0.877 sin 33°)(-0.587) + (0.492 cos 33°)(-0.587) */\
+ 0.31113464317149330806699936147197149693965911865234) /* (0.877 sin 33°)(-0.114) + (0.492 cos 33°)(1 - 0.114) */
+
+#define CIEXYZ_TO_YIQ\
+ MATRIX( 0.40627729168038273499519164033699780702590942382812,\
+ 0.61835674212166968910509012857801280915737152099609,\
+ -0.00414330221353725880462093300593551248311996459961,\
+ 2.17852787350219845308174626552499830722808837890625,\
+ -1.36502666214454104753883711964590474963188171386719,\
+ -0.64803574634025240541745915834326297044754028320312,\
+ 1.20905577682138853923277110880007967352867126464844,\
+ -1.36890364998339797431015085749095305800437927246094,\
+ 0.20180559439597040016778350945969577878713607788086)
+
+#define SRGB_TO_YDBDR\
+ MATRIX( 0.299, 0.587, 0.114,\
+ -0.450, -0.883, 1.333,\
+ -1.333, 1.116, 0.217)
+
+#define YUV_TO_YDBDR(FROM_Y, FROM_U, FROM_V, TO_Y, TO_DB, TO_DR)\
+ do {\
+ TYPE U__ = (FROM_U), V__ = (FROM_V);\
+ (TO_Y) = (FROM_Y);\
+ (TO_DB) = U__ * D(3.069);\
+ (TO_DR) = V__ * D(-2.169);\
+ } while (0)
+
+#define CIEXYZ_TO_YDBDR\
+ MATRIX( 0.40627729168038273499519164033699780702590942382812,\
+ 0.61835674212166968910509012857801280915737152099609,\
+ -0.00414330221353725880462093300593551248311996459961,\
+ -0.52816561102614745237815441214479506015777587890625,\
+ -1.23677481526212962315014465275453403592109680175781,\
+ 1.59692761635924940222253098909277468919754028320312,\
+ -5.38914174974103143966885909321717917919158935546875,\
+ 4.09835630362728497999569299281574785709381103515625,\
+ 0.94033545560642795013706063400604762136936187744141)
+
+#define YDBDR_TO_YUV(FROM_Y, FROM_DB, FROM_DR, TO_Y, TO_U, TO_V)\
+ do {\
+ TYPE DB__ = (FROM_DB), DR__ = (FROM_DR);\
+ (TO_Y) = (FROM_Y);\
+ (TO_U) = DB__ / D(3.069);\
+ (TO_V) = DR__ / D(-2.169);\
+ } while (0)
+
+#define SRGB_TO_YUV\
+ MATRIX( 0.29899999999999998800959133404830936342477798461914,\
+ 0.58699999999999996624922005139524117112159729003906,\
+ 0.11400000000000000410782519111307919956743717193604,\
+ -0.14662756598240470062854967636667424812912940979004,\
+ -0.28771586836102963635752871596196200698614120483398,\
+ 0.43434343434343436474165400795754976570606231689453,\
+ 0.61456892577224520035628074765554629266262054443359,\
+ -0.51452282157676354490405401520547457039356231689453,\
+ -0.10004610419548178035231700278018251992762088775635)
+
+#define CIEXYZ_TO_YUV\
+ MATRIX( 0.40627729168038273499519164033699780702590942382812,\
+ 0.61835674212166968910509012857801280915737152099609,\
+ -0.00414330221353725880462093300593551248311996459961,\
+ -0.17209697328971895746718701047939248383045196533203,\
+ -0.40298951295605395239718404809536878019571304321289,\
+ 0.52034135430408912093014350830344483256340026855469,\
+ 2.48462044709130047692724474472925066947937011718750,\
+ -1.88951420176453876997868519538315013051033020019531,\
+ -0.43353409663735725798616726933687459677457809448242)
+
+#define SRGB_TO_YPBPR(FROM_R, FROM_G, FROM_B, TO_Y, TO_PB, TO_PR)\
+ do {\
+ TYPE R__ = (FROM_R), G__ = (FROM_G), B__ = (FROM_B);\
+ TYPE Y__ = R__ * D(0.2126) +\
+ G__ * D(0.7152) +\
+ B__ * D(0.0722);\
+ (TO_Y) = Y__;\
+ (TO_PB) = B__ - Y__;\
+ (TO_PR) = R__ - Y__;\
+ } while (0)
+
+#define CIEXYZ_TO_YPBPR\
+ MATRIX(-0.00028314209073960778378920011277841695118695497513,\
+ 1.00019821310075673892470149439759552478790283203125,\
+ 0.00006512054470741990286342115723527967929840087891,\
+ 0.05592664565509243568275365987574332393705844879150,\
+ -1.20422439283671711685030913940863683819770812988281,\
+ 1.05716144717799576113748116767965257167816162109375,\
+ 3.24072939673847715269516811531502753496170043945312,\
+ -2.53733297492083753610359053709544241428375244140625,\
+ -0.49859531356743613805804216099204495549201965332031)
+
+#define SRGB_TO_YCGCO\
+ MATRIX( 0.25, 0.50, 0.25,\
+ -0.25, 0.50, -0.25,\
+ 0.50, 0., -0.50)
+
+#define CIEXYZ_TO_YCGCO\
+ MATRIX( 0.33938913643068269188063368346774950623512268066406,\
+ 0.50271574450517486631895280879689380526542663574219,\
+ 0.16045211478220866574417868832824751734733581542969,\
+ -1.30865574267536244335019546269904822111129760742188,\
+ 1.37329621528319534284889869013568386435508728027344,\
+ -0.11889607256777862120955546743061859160661697387695,\
+ 1.59240137554169236544510113162687048316001892089844,\
+ -0.66655429104206020962664069884340278804302215576172,\
+ -0.77787838037271606062006412685150280594825744628906)
+
+#define CIEUVW_TO_CIE1960UCS(FROM_U, FROM_V, FROM_W, TO_U, TO_V, TO_Y, FROM_U0, FROM_V0)\
+ do {\
+ TYPE U__ = (FROM_U), V__ = (FROM_V), W__ = (FROM_W), Y__;\
+ Y__ = (W__ + 17) / 25;\
+ Y__ *= Y__ * Y__;\
+ W__ *= 13;\
+ (TO_U) = U__ / W__ + (FROM_U0);\
+ (TO_V) = V__ / W__ + (FROM_V0);\
+ (TO_Y) = Y__;\
+ } while (0)
+
+#define CIEXYZ_TO_CIE1960UCS(FROM_X, FROM_Y, FROM_Z, TO_U, TO_V, TO_Y)\
+ do {\
+ TYPE X__ = (FROM_X), Y__ = (FROM_Y), w__;\
+ w__ = X__ + 15 * Y__ + 3 * (FROM_Z);\
+ (TO_U) = 4 * X__ / w__;\
+ (TO_V) = 6 * Y__ / w__;\
+ (TO_Y) = Y__;\
+ } while (0)
+
+#define CIEUVW_TO_CIEUVW(FROM_U, FROM_V, FROM_W, TO_U, TO_V, TO_W, FROM_U0, FROM_V0, TO_U0, TO_V0)\
+ do {\
+ TYPE U__ = (FROM_U), V__ = (FROM_V), W__ = (FROM_W);\
+ TYPE w__ = W__ * 13;\
+ U__ += w__ * ((FROM_U0) - (TO_U0));\
+ V__ += w__ * ((FROM_V0) - (TO_V0));\
+ (TO_U) = U__;\
+ (TO_V) = V__;\
+ (TO_W) = W__;\
+ } while (0)
+
+#define CIE1960UCS_TO_CIEUVW(FROM_U, FROM_V, FROM_Y, TO_U, TO_V, TO_W, TO_U0, TO_V0)\
+ do {\
+ TYPE U__ = (FROM_U), V__ = (FROM_V), u0__ = (TO_U0), v0__ = (TO_V0);\
+ TYPE Y__ = 25 * xcbrt((FROM_Y)) - 17;\
+ TYPE w__ = Y__ * 13;\
+ (TO_U) = w__ * (U__ - u0__);\
+ (TO_V) = w__ * (V__ - v0__);\
+ (TO_W) = Y__;\
+ } while (0)
diff --git a/convert-template.c b/convert-template.c
deleted file mode 100644
index ee6066d..0000000
--- a/convert-template.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/* See LICENSE file for copyright and license details. */
-
-#define X(C, T, N) static void to_##N(const libcolour_colour_t *restrict from, T *restrict to);
-LIST_MODELS(X)
-#undef X
-
-
-#define CONV_0(MACRO, FROM, TO)\
- MACRO(((const libcolour_rgb_t *)(FROM))->R,\
- ((const libcolour_rgb_t *)(FROM))->G,\
- ((const libcolour_rgb_t *)(FROM))->B,\
- ((libcolour_rgb_t *)(TO))->R,\
- ((libcolour_rgb_t *)(TO))->G,\
- ((libcolour_rgb_t *)(TO))->B)
-
-#define CONV_N(MACRO, FROM, TO, ...)\
- MACRO(((const libcolour_rgb_t *)(FROM))->R,\
- ((const libcolour_rgb_t *)(FROM))->G,\
- ((const libcolour_rgb_t *)(FROM))->B,\
- ((libcolour_rgb_t *)(TO))->R,\
- ((libcolour_rgb_t *)(TO))->G,\
- ((libcolour_rgb_t *)(TO))->B,\
- __VA_ARGS__)
-
-
-static void
-rgb_encode(libcolour_rgb_t *restrict colour, const libcolour_rgb_t *restrict space)
-{
- TYPE r_sign = 1, g_sign = 1, b_sign = 1;
- switch (space->encoding_type) {
- case LIBCOLOUR_ENCODING_TYPE_LINEAR:
- break;
- case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
- case LIBCOLOUR_ENCODING_TYPE_REGULAR:
- if (colour->R < 0) r_sign = -1, colour->R = -colour->R;
- if (colour->G < 0) g_sign = -1, colour->G = -colour->G;
- if (colour->B < 0) b_sign = -1, colour->B = -colour->B;
- if (space->encoding_type == LIBCOLOUR_ENCODING_TYPE_SIMPLE) {
- colour->R = xpow(colour->R, 1 / space->GAMMA);
- colour->G = xpow(colour->G, 1 / space->GAMMA);
- colour->B = xpow(colour->B, 1 / space->GAMMA);
- } else {
- colour->R = REGULAR(space, colour->R);
- colour->G = REGULAR(space, colour->G);
- colour->B = REGULAR(space, colour->B);
- }
- colour->R *= r_sign;
- colour->G *= g_sign;
- colour->B *= b_sign;
- break;
- case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
- colour->R = (space->TO_ENCODED_RED)(colour->R);
- colour->G = (space->TO_ENCODED_GREEN)(colour->G);
- colour->B = (space->TO_ENCODED_BLUE)(colour->B);
- break;
- default:
- fprintf(stderr, "libcolour: invalid encoding type\n");
- abort();
- }
-}
-
-static void
-rgb_decode(libcolour_rgb_t *restrict colour, const libcolour_rgb_t *restrict space)
-{
- TYPE r_sign = 1, g_sign = 1, b_sign = 1;
- switch (space->encoding_type) {
- case LIBCOLOUR_ENCODING_TYPE_LINEAR:
- break;
- case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
- case LIBCOLOUR_ENCODING_TYPE_REGULAR:
- if (colour->R < 0) r_sign = -1, colour->R = -colour->R;
- if (colour->G < 0) g_sign = -1, colour->G = -colour->G;
- if (colour->B < 0) b_sign = -1, colour->B = -colour->B;
- if (space->encoding_type == LIBCOLOUR_ENCODING_TYPE_SIMPLE) {
- colour->R = xpow(colour->R, space->GAMMA);
- colour->G = xpow(colour->G, space->GAMMA);
- colour->B = xpow(colour->B, space->GAMMA);
- } else {
- colour->R = INVREGULAR(space, colour->R);
- colour->G = INVREGULAR(space, colour->G);
- colour->B = INVREGULAR(space, colour->B);
- }
- colour->R *= r_sign;
- colour->G *= g_sign;
- colour->B *= b_sign;
- break;
- case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
- colour->R = (space->TO_DECODED_RED)(colour->R);
- colour->G = (space->TO_DECODED_GREEN)(colour->G);
- colour->B = (space->TO_DECODED_BLUE)(colour->B);
- break;
- default:
- fprintf(stderr, "libcolour: invalid encoding type\n");
- abort();
- }
-}
-
-static int
-rgb_same_transfer(const libcolour_rgb_t *restrict a, const libcolour_rgb_t *restrict b)
-{
- if (a->encoding_type != b->encoding_type)
- return 0;
- switch (a->encoding_type) {
- case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
- return a->GAMMA == b->GAMMA;
- case LIBCOLOUR_ENCODING_TYPE_REGULAR:
- return a->GAMMA == b->GAMMA &&
- a->OFFSET == b->OFFSET &&
- a->SLOPE == b->SLOPE &&
- a->TRANSITION == b->TRANSITION;
- case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
- return a->TO_ENCODED_RED == b->TO_ENCODED_RED &&
- a->TO_ENCODED_GREEN == b->TO_ENCODED_GREEN &&
- a->TO_ENCODED_BLUE == b->TO_ENCODED_BLUE &&
- a->TO_DECODED_RED == b->TO_DECODED_RED &&
- a->TO_DECODED_GREEN == b->TO_DECODED_GREEN &&
- a->TO_DECODED_BLUE == b->TO_DECODED_BLUE;
- default:
- return 1;
- }
-}
-
-static void
-to_rgb(const libcolour_colour_t *restrict from, libcolour_rgb_t *restrict to)
-{
- int have_transfer = 0, with_transfer = to->with_transfer;
- libcolour_ciexyz_t tmp;
- switch (from->model) {
- case LIBCOLOUR_RGB:
- if (!memcmp(from->rgb.M, to->M, sizeof(TYPE[3][3]))) {
- have_transfer = from->rgb.with_transfer;
- to->R = from->rgb.R;
- to->G = from->rgb.G;
- to->B = from->rgb.B;
- if (have_transfer && with_transfer && !rgb_same_transfer(&from->rgb, to))
- rgb_decode(to, &from->rgb), have_transfer = 0;
- break;
- }
- /* fall through */
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp);
- from = (const void *)&tmp;
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_N(CIEXYZ_TO_RGB, from, to, to->Minv);
- break;
- }
-
- if (have_transfer != with_transfer) {
- if (with_transfer)
- rgb_encode(to, to);
- else
- rgb_decode(to, &from->rgb);
- }
-}
-
-
-static void
-to_srgb(const libcolour_colour_t *restrict from, libcolour_srgb_t *restrict to)
-{
- libcolour_srgb_t tmp_srgb;
- libcolour_ciexyz_t tmp_ciexyz;
- switch (from->model) {
- default:
- tmp_ciexyz.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp_ciexyz);
- from = (const void *)&tmp_ciexyz;
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_SRGB, from, to);
- break;
- case LIBCOLOUR_SRGB:
- srgb_to_srgb:
- if (from->srgb.with_transfer == to->with_transfer) {
- *to = from->srgb;
- } else if (to->with_transfer) {
- to->R = srgb_encode(from->srgb.R);
- to->G = srgb_encode(from->srgb.G);
- to->B = srgb_encode(from->srgb.B);
- } else {
- to->R = srgb_decode(from->srgb.R);
- to->G = srgb_decode(from->srgb.G);
- to->B = srgb_decode(from->srgb.B);
- }
- return;
- case LIBCOLOUR_YIQ:
- CONV_0(YIQ_TO_SRGB, from, to);
- break;
- case LIBCOLOUR_YDBDR:
- CONV_0(YDBDR_TO_SRGB, from, to);
- break;
- case LIBCOLOUR_YPBPR:
- CONV_0(YPBPR_TO_SRGB, from, to);
- break;
- case LIBCOLOUR_YUV:
- CONV_0(YUV_TO_SRGB, from, to);
- break;
- case LIBCOLOUR_YCGCO:
- CONV_0(YCGCO_TO_SRGB, from, to);
- break;
- }
- if (to->with_transfer) {
- tmp_srgb = *to;
- tmp_srgb.with_transfer = 0;
- from = (const void *)&tmp_srgb;
- goto srgb_to_srgb;
- }
-}
-
-
-static void
-to_ciexyy(const libcolour_colour_t *restrict from, libcolour_ciexyy_t *restrict to)
-{
- libcolour_srgb_t tmp1;
- libcolour_ciexyz_t tmp2;
- switch (from->model) {
- case LIBCOLOUR_CIEXYY:
- *to = from->ciexyy;
- break;
- case LIBCOLOUR_SRGB:
- tmp1.model = LIBCOLOUR_SRGB;
- if (from->srgb.with_transfer) {
- tmp1.with_transfer = 0;
- to_srgb((const libcolour_colour_t *)from, &tmp1);
- } else {
- tmp1 = from->srgb;
- }
- if (tmp1.R == 0 && tmp1.G == 0 && tmp1.B == 0) {
- to->x = D(0.31272660439158);
- to->y = D(0.32902315240275);
- to->Y = 0;
- break;
- } else {
- from = (const void *)&tmp1;
- }
- /* fall through */
- default:
- tmp2.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp2);
- from = (const void *)&tmp2;
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_CIEXYY, from, to);
- break;
- }
-}
-
-
-static void
-to_ciexyz(const libcolour_colour_t *restrict from, libcolour_ciexyz_t *restrict to)
-{
- libcolour_colour_t tmp;
- libcolour_srgb_t tmp_srgb;
- TYPE R, G, B;
- switch (from->model) {
- case LIBCOLOUR_RGB:
- if (from->rgb.with_transfer) {
- tmp.rgb = from->rgb;
- tmp.rgb.with_transfer = 0;
- to_rgb(from, &tmp.rgb);
- R = tmp.rgb.R, G = tmp.rgb.G, B = tmp.rgb.B;
- } else {
- R = from->rgb.R, G = from->rgb.G, B = from->rgb.B;
- }
- RGB_TO_CIEXYZ(R, G, B, to->X, to->Y, to->Z, from->rgb.M);
- break;
- default:
- tmp.srgb.model = LIBCOLOUR_SRGB;
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- from = (const void *)&tmp.srgb;
- /* fall through */
- case LIBCOLOUR_SRGB:
- if (from->srgb.with_transfer) {
- tmp_srgb.model = LIBCOLOUR_SRGB;
- tmp_srgb.with_transfer = 0;
- to_srgb(from, &tmp_srgb);
- R = tmp_srgb.R, G = tmp_srgb.G, B = tmp_srgb.B;
- } else {
- R = from->srgb.R, G = from->srgb.G, B = from->srgb.B;
- }
- SRGB_TO_CIEXYZ(R, G, B, to->X, to->Y, to->Z);
- break;
- case LIBCOLOUR_CIEXYY:
- CONV_0(CIEXYY_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_CIEXYZ:
- *to = from->ciexyz;
- break;
- case LIBCOLOUR_CIELAB:
- CONV_0(CIELAB_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_CIELCHUV:
- tmp.cieluv.model = LIBCOLOUR_CIELUV;
- tmp.cieluv.white = from->cielchuv.white;
- to_cieluv(from, &tmp.cieluv);
- from = (const void *)&tmp.cieluv;
- /* fall through */
- case LIBCOLOUR_CIELUV:
- CONV_N(CIELUV_TO_CIEXYZ, from, to, from->cieluv.white.X, from->cieluv.white.Y, from->cieluv.white.Z);
- break;
- case LIBCOLOUR_YIQ:
- CONV_0(YIQ_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_YDBDR:
- CONV_0(YDBDR_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_YUV:
- CONV_0(YUV_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_YPBPR:
- CONV_0(YPBPR_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_YCGCO:
- CONV_0(YCGCO_TO_CIEXYZ, from, to);
- break;
- case LIBCOLOUR_CIEUVW:
- tmp.cie1960ucs.model = LIBCOLOUR_CIE1960UCS;
- to_cie1960ucs(from, &tmp.cie1960ucs);
- from = (const void *)&tmp.cie1960ucs;
- /* fall through */
- case LIBCOLOUR_CIE1960UCS:
- CONV_0(CIE1960UCS_TO_CIEXYZ, from, to);
- break;
- }
-}
-
-
-static void
-to_cielab(const libcolour_colour_t *restrict from, libcolour_cielab_t *restrict to)
-{
- libcolour_ciexyz_t tmp;
- switch (from->model) {
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp);
- from = (const void *)&tmp;
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_CIELAB, from, to);
- break;
- case LIBCOLOUR_CIELAB:
- *to = from->cielab;
- break;
- }
-}
-
-
-static void
-to_cieluv(const libcolour_colour_t *restrict from, libcolour_cieluv_t *restrict to)
-{
- libcolour_ciexyz_t tmp;
- libcolour_cielchuv_t tmp2;
- TYPE L, C, h;
- switch (from->model) {
- case LIBCOLOUR_CIELCHUV:
- if (to->white.X != from->cielchuv.white.X ||
- to->white.Y != from->cielchuv.white.Y ||
- to->white.Z != from->cielchuv.white.Z) {
- tmp.model = LIBCOLOUR_CIEXYZ;
- tmp2.model = LIBCOLOUR_CIELCHUV;
- tmp2.white = to->white;
- tmp2.one_revolution = PI2;
- to_ciexyz(from, &tmp);
- to_cielchuv((const libcolour_colour_t *)&tmp, &tmp2);
- L = tmp2.L, C = tmp2.C, h = tmp2.h;
- } else {
- L = from->cielchuv.L;
- C = from->cielchuv.C;
- h = from->cielchuv.h * PI2 / from->cielchuv.one_revolution;
- }
- CIELCHUV_TO_CIELUV(L, C, h, to->L, to->u, to->v);
- break;
- case LIBCOLOUR_CIELUV:
- if (to->white.X == from->cieluv.white.X &&
- to->white.Y == from->cieluv.white.Y &&
- to->white.Z == from->cieluv.white.Z) {
- *to = from->cieluv;
- break;
- }
- /* fall through */
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp);
- from = (const void *)&tmp;
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_N(CIEXYZ_TO_CIELUV, from, to, to->white.X, to->white.Y, to->white.Z);
- break;
- }
-}
-
-
-static void
-to_cielchuv(const libcolour_colour_t *restrict from, libcolour_cielchuv_t *restrict to)
-{
- libcolour_cieluv_t tmp1, tmp2;
- TYPE one_revolution;
- switch (from->model) {
- case LIBCOLOUR_CIELCHUV:
- if (to->white.X == from->cielchuv.white.X &&
- to->white.Y == from->cielchuv.white.Y &&
- to->white.Z == from->cielchuv.white.Z) {
- if (to->one_revolution == from->cielchuv.one_revolution) {
- *to = from->cielchuv;
- } else {
- one_revolution = to->one_revolution;
- *to = from->cielchuv;
- to->one_revolution = one_revolution;
- to->h *= one_revolution;
- to->h /= from->cielchuv.one_revolution;
- }
- break;
- }
- /* fall through */
- default:
- tmp1.model = LIBCOLOUR_CIELUV;
- tmp1.white = to->white;
- to_cieluv(from, &tmp1);
- from = (const void *)&tmp1;
- /* fall through */
- case LIBCOLOUR_CIELUV:
- if (to->white.X != from->cieluv.white.X ||
- to->white.Y != from->cieluv.white.Y ||
- to->white.Z != from->cieluv.white.Z) {
- tmp2.model = LIBCOLOUR_CIELUV;
- tmp2.white = to->white;
- to_cieluv(from, &tmp2);
- from = (const void *)&tmp2;
- }
- CONV_N(CIELUV_TO_CIELCHUV, from, to, to->one_revolution);
- break;
- }
-}
-
-
-static void
-to_yiq(const libcolour_colour_t *restrict from, libcolour_yiq_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_YIQ:
- *to = from->yiq;
- break;
- case LIBCOLOUR_SRGB:
- if (tmp.srgb.with_transfer) {
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- }
- CONV_0(SRGB_TO_YIQ, &tmp, to);
- break;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_YIQ, &tmp, to);
- break;
- }
-}
-
-
-static void
-to_ydbdr(const libcolour_colour_t *restrict from, libcolour_ydbdr_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_YDBDR:
- *to = from->ydbdr;
- break;
- case LIBCOLOUR_SRGB:
- if (tmp.srgb.with_transfer) {
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- }
- CONV_0(SRGB_TO_YDBDR, &tmp, to);
- break;
- case LIBCOLOUR_YUV:
- CONV_0(YUV_TO_YDBDR, &tmp, to);
- break;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_YDBDR, &tmp, to);
- break;
- }
-}
-
-
-static void
-to_yuv(const libcolour_colour_t *restrict from, libcolour_yuv_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_YUV:
- *to = from->yuv;
- break;
- case LIBCOLOUR_YDBDR:
- CONV_0(YDBDR_TO_YUV, from, to);
- break;
- case LIBCOLOUR_SRGB:
- if (tmp.srgb.with_transfer) {
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- }
- CONV_0(SRGB_TO_YUV, &tmp, to);
- break;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_YUV, &tmp, to);
- break;
- }
-}
-
-
-static void
-to_ypbpr(const libcolour_colour_t *restrict from, libcolour_ypbpr_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_YPBPR:
- *to = from->ypbpr;
- break;
- case LIBCOLOUR_SRGB:
- if (tmp.srgb.with_transfer) {
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- }
- CONV_0(SRGB_TO_YPBPR, &tmp, to);
- break;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_YPBPR, &tmp, to);
- break;
- }
-}
-
-
-static void
-to_ycgco(const libcolour_colour_t *restrict from, libcolour_ycgco_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_YCGCO:
- *to = from->ycgco;
- break;
- case LIBCOLOUR_SRGB:
- if (tmp.srgb.with_transfer) {
- tmp.srgb.with_transfer = 0;
- to_srgb(from, &tmp.srgb);
- }
- CONV_0(SRGB_TO_YCGCO, &tmp, to);
- break;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_YCGCO, &tmp, to);
- break;
- }
-}
-
-
-static void
-to_cie1960ucs(const libcolour_colour_t *restrict from, libcolour_cie1960ucs_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_CIE1960UCS:
- *to = from->cie1960ucs;
- return;
- case LIBCOLOUR_CIEUVW:
- CONV_N(CIEUVW_TO_CIE1960UCS, from, to, from->cieuvw.u0, from->cieuvw.v0);
- return;
- default:
- tmp.model = LIBCOLOUR_CIEXYZ;
- to_ciexyz(from, &tmp.ciexyz);
- /* fall through */
- case LIBCOLOUR_CIEXYZ:
- CONV_0(CIEXYZ_TO_CIE1960UCS, &tmp, to);
- return;
- }
-}
-
-
-static void
-to_cieuvw(const libcolour_colour_t *restrict from, libcolour_cieuvw_t *restrict to)
-{
- libcolour_colour_t tmp = *from;
- switch (from->model) {
- case LIBCOLOUR_CIEUVW:
- CONV_N(CIEUVW_TO_CIEUVW, from, to, from->cieuvw.u0, from->cieuvw.v0, to->u0, to->v0);
- break;
- default:
- tmp.model = LIBCOLOUR_CIE1960UCS;
- to_cie1960ucs(from, &tmp.cie1960ucs);
- /* fall through */
- case LIBCOLOUR_CIE1960UCS:
- CONV_N(CIE1960UCS_TO_CIEUVW, &tmp, to, to->u0, to->v0);
- break;
- }
-}
-
-
-int
-libcolour_convert(const libcolour_colour_t *restrict from, libcolour_colour_t *restrict to)
-{
-#define X(C, T, N) 1 +
- if (from->model < 0 || from->model > LIST_MODELS(X) 0) {
-#undef X
- errno = EINVAL;
- return -1;
- }
- switch (to->model) {
-#define X(C, T, N) case C: to_##N(from, &to->N); break;
- LIST_MODELS(X)
-#undef X
- default:
- errno = EINVAL;
- return -1;
- }
- return 0;
-}
diff --git a/double.c b/double.c
index 9d37aed..30aa502 100644
--- a/double.c
+++ b/double.c
@@ -82,6 +82,6 @@
#define libcolour_convert_en_masse libcolour_convert_en_masse_lf
#include "common.h"
-#include "convert-template.c"
+#include "conversions.h"
#include "libcolour-template.c"
#include "en_masse-template.c"
diff --git a/en_masse-template.c b/en_masse-template.c
index 9a9f17f..b539328 100644
--- a/en_masse-template.c
+++ b/en_masse-template.c
@@ -1,5 +1,620 @@
/* See LICENSE file for copyright and license details. */
+#define XPARAMETERS\
+ size_t n, size_t width, TYPE *ch1, TYPE *ch2, TYPE *ch3
+
+#define XARGUMENTS\
+ (n), (width), (ch1), (ch2), (ch3)
+
+#define PARAMETERS(FROM_SPACE, TO_SPACE)\
+ const libcolour_##FROM_SPACE##_t *from, const libcolour_##TO_SPACE##_t *to, XPARAMETERS
+
+#define ARGUMENTS(FROM, TO)\
+ (FROM), (TO), XARGUMENTS
+
+
+#define SIMPLE_LOOP(CH, INSTRUCTIONS)\
+ do {\
+ TYPE *ch = (CH);\
+ size_t i__;\
+ for (i__ = 0; i__ < n; i__++) {\
+ INSTRUCTIONS;\
+ (CH) += width;\
+ }\
+ (CH) = ch;\
+ } while (0)
+
+#define LOOP(INSTRUCTIONS)\
+ do {\
+ TYPE *c1 = ch1, *c2 = ch2, *c3 = ch3;\
+ size_t i__;\
+ for (i__ = 0; i__ < n; i__++) {\
+ INSTRUCTIONS;\
+ ch1 += width;\
+ ch2 += width;\
+ ch3 += width;\
+ }\
+ ch1 = c1;\
+ ch2 = c2;\
+ ch3 = c3;\
+ } while (0)
+
+#define CONV_0(MACRO)\
+ LOOP(MACRO(*ch1, *ch2, *ch3, *ch1, *ch2, *ch3))
+
+#define CONV_N(MACRO, ...)\
+ LOOP(MACRO(*ch1, *ch2, *ch3, *ch1, *ch2, *ch3, __VA_ARGS__))
+
+
+#define LINEAR_SRGB\
+ do {\
+ if (from->srgb.with_transfer) {\
+ libcolour_srgb_t srgb__ = from->srgb;\
+ srgb__.with_transfer = 0;\
+ to_srgb(ARGUMENTS(from, &srgb__));\
+ }\
+ } while (0)
+
+
+
+#define X(C, T, N) static void to_##N(const libcolour_colour_t *from, const T *to, XPARAMETERS);
+LIST_MODELS(X)
+#undef X
+
+
+
+static void
+conversion_by_matrix(XPARAMETERS, TYPE m11, TYPE m12, TYPE m13, TYPE m21, TYPE m22, TYPE m23, TYPE m31, TYPE m32, TYPE m33)
+{
+ TYPE c1, c2, c3;
+ while (n--) {
+ c1 = *ch1;
+ c2 = *ch2;
+ c3 = *ch3;
+ *ch1 = m11 * c1 + m12 * c2 + m13 * c3;
+ *ch2 = m21 * c1 + m22 * c2 + m23 * c3;
+ *ch3 = m31 * c1 + m32 * c2 + m33 * c3;
+ ch1 += width;
+ ch2 += width;
+ ch3 += width;
+ }
+}
+
+
+static void
+rgb_encode(XPARAMETERS, const libcolour_rgb_t *restrict space)
+{
+ TYPE r_sign, g_sign, b_sign;
+ switch (space->encoding_type) {
+ case LIBCOLOUR_ENCODING_TYPE_LINEAR:
+ break;
+ case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
+ case LIBCOLOUR_ENCODING_TYPE_REGULAR:
+ LOOP(do {
+ (r_sign = 1, g_sign = 1, b_sign = 1);
+ if (*ch1 < 0) (r_sign = -1, *ch1 = -*ch1);
+ if (*ch2 < 0) (g_sign = -1, *ch2 = -*ch2);
+ if (*ch3 < 0) (b_sign = -1, *ch3 = -*ch3);
+ if (space->encoding_type == LIBCOLOUR_ENCODING_TYPE_SIMPLE) {
+ *ch1 = xpow(*ch1, 1 / space->GAMMA);
+ *ch2 = xpow(*ch2, 1 / space->GAMMA);
+ *ch3 = xpow(*ch3, 1 / space->GAMMA);
+ } else {
+ *ch1 = REGULAR(space, *ch1);
+ *ch2 = REGULAR(space, *ch2);
+ *ch3 = REGULAR(space, *ch3);
+ }
+ *ch1 *= r_sign;
+ *ch2 *= g_sign;
+ *ch3 *= b_sign;
+ } while (0));
+ break;
+ case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
+ LOOP((*ch1 = (space->TO_ENCODED_RED)(*ch1),
+ *ch2 = (space->TO_ENCODED_GREEN)(*ch2),
+ *ch3 = (space->TO_ENCODED_BLUE)(*ch3)));
+ break;
+ default:
+ fprintf(stderr, "libcolour: invalid encoding type\n");
+ abort();
+ }
+}
+
+static void
+rgb_decode(XPARAMETERS, const libcolour_rgb_t *restrict space)
+{
+ TYPE r_sign, g_sign, b_sign;
+ switch (space->encoding_type) {
+ case LIBCOLOUR_ENCODING_TYPE_LINEAR:
+ break;
+ case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
+ case LIBCOLOUR_ENCODING_TYPE_REGULAR:
+ LOOP(do {
+ (r_sign = 1, g_sign = 1, b_sign = 1);
+ if (*ch1 < 0) (r_sign = -1, *ch1 = -*ch1);
+ if (*ch2 < 0) (g_sign = -1, *ch2 = -*ch2);
+ if (*ch3 < 0) (b_sign = -1, *ch3 = -*ch3);
+ if (space->encoding_type == LIBCOLOUR_ENCODING_TYPE_SIMPLE) {
+ *ch1 = xpow(*ch1, space->GAMMA);
+ *ch2 = xpow(*ch2, space->GAMMA);
+ *ch3 = xpow(*ch3, space->GAMMA);
+ } else {
+ *ch1 = INVREGULAR(space, *ch1);
+ *ch2 = INVREGULAR(space, *ch2);
+ *ch3 = INVREGULAR(space, *ch3);
+ }
+ *ch1 *= r_sign;
+ *ch2 *= g_sign;
+ *ch3 *= b_sign;
+ } while (0));
+ break;
+ case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
+ LOOP((*ch1 = (space->TO_DECODED_RED)(*ch1),
+ *ch2 = (space->TO_DECODED_GREEN)(*ch2),
+ *ch3 = (space->TO_DECODED_BLUE)(*ch3)));
+ break;
+ default:
+ fprintf(stderr, "libcolour: invalid encoding type\n");
+ abort();
+ }
+}
+
+static int
+rgb_same_transfer(const libcolour_rgb_t *a, const libcolour_rgb_t *b)
+{
+ if (a->encoding_type != b->encoding_type)
+ return 0;
+ switch (a->encoding_type) {
+ case LIBCOLOUR_ENCODING_TYPE_SIMPLE:
+ return a->GAMMA == b->GAMMA;
+ case LIBCOLOUR_ENCODING_TYPE_REGULAR:
+ return a->GAMMA == b->GAMMA &&
+ a->OFFSET == b->OFFSET &&
+ a->SLOPE == b->SLOPE &&
+ a->TRANSITION == b->TRANSITION;
+ case LIBCOLOUR_ENCODING_TYPE_CUSTOM:
+ return a->TO_ENCODED_RED == b->TO_ENCODED_RED &&
+ a->TO_ENCODED_GREEN == b->TO_ENCODED_GREEN &&
+ a->TO_ENCODED_BLUE == b->TO_ENCODED_BLUE &&
+ a->TO_DECODED_RED == b->TO_DECODED_RED &&
+ a->TO_DECODED_GREEN == b->TO_DECODED_GREEN &&
+ a->TO_DECODED_BLUE == b->TO_DECODED_BLUE;
+ default:
+ return 1;
+ }
+}
+
+static void
+to_rgb(PARAMETERS(colour, rgb))
+{
+ int have_transfer = 0, with_transfer = to->with_transfer;
+ switch (from->model) {
+ case LIBCOLOUR_RGB:
+ if (!memcmp(from->rgb.M, to->M, sizeof(TYPE[3][3]))) {
+ have_transfer = from->rgb.with_transfer;
+ if (have_transfer && with_transfer && !rgb_same_transfer(&from->rgb, to)) {
+ rgb_decode(XARGUMENTS, &from->rgb);
+ have_transfer = 0;
+ }
+ break;
+ }
+ /* fall through */
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_RGB(to->Minv));
+ break;
+ }
+
+ if (have_transfer != with_transfer) {
+ if (with_transfer)
+ rgb_encode(XARGUMENTS, to);
+ else
+ rgb_decode(XARGUMENTS, &from->rgb);
+ }
+}
+
+
+static void
+to_srgb(PARAMETERS(colour, srgb))
+{
+ libcolour_srgb_t tmp;
+ switch (from->model) {
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_SRGB);
+ break;
+ case LIBCOLOUR_SRGB:
+ srgb_to_srgb:
+ if (from->srgb.with_transfer != to->with_transfer) {
+ if (to->with_transfer) {
+ LOOP((*ch1 = srgb_encode(*ch1),
+ *ch2 = srgb_encode(*ch2),
+ *ch3 = srgb_encode(*ch3)));
+ } else {
+ LOOP((*ch1 = srgb_decode(*ch1),
+ *ch2 = srgb_decode(*ch2),
+ *ch3 = srgb_decode(*ch3)));
+ }
+ }
+ return;
+ case LIBCOLOUR_YIQ:
+ conversion_by_matrix(XARGUMENTS, YIQ_TO_SRGB);
+ break;
+ case LIBCOLOUR_YDBDR:
+ conversion_by_matrix(XARGUMENTS, YDBDR_TO_SRGB);
+ break;
+ case LIBCOLOUR_YPBPR:
+ CONV_0(YPBPR_TO_SRGB);
+ break;
+ case LIBCOLOUR_YUV:
+ conversion_by_matrix(XARGUMENTS, YUV_TO_SRGB);
+ break;
+ case LIBCOLOUR_YCGCO:
+ conversion_by_matrix(XARGUMENTS, YCGCO_TO_SRGB);
+ break;
+ }
+ if (to->with_transfer) {
+ tmp = *to;
+ tmp.with_transfer = 0;
+ from = (const void *)&tmp;
+ goto srgb_to_srgb;
+ }
+}
+
+
+static void
+to_ciexyy(PARAMETERS(colour, ciexyy))
+{
+ libcolour_srgb_t tmp;
+ size_t m, old_n;
+beginning:
+ m = old_n = n;
+ switch (from->model) {
+ case LIBCOLOUR_CIEXYY:
+ break;
+ case LIBCOLOUR_SRGB:
+ tmp.model = LIBCOLOUR_SRGB;
+ tmp.with_transfer = 0;
+ if (from->srgb.with_transfer)
+ to_srgb(ARGUMENTS((const libcolour_colour_t *)from, &tmp));
+ if (!*ch1 && !*ch2 && !*ch3) {
+ for (m = 1; m < n && !ch1[m * width] && !ch2[m * width] && !ch3[m * width]; m++);
+ n = m;
+ LOOP((*ch1 = D(0.31272660439158),
+ *ch2 = D(0.32902315240275),
+ *ch3 = 0));
+ n = old_n;
+ break;
+ } else {
+ for (m = 1; m < n && (ch1[m * width] || ch2[m * width] || ch3[m * width]); m++);
+ n = m;
+ from = (const void *)&tmp;
+ }
+ /* fall through */
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ CONV_0(CIEXYZ_TO_CIEXYY);
+ break;
+ }
+ if (m != old_n) {
+ n = old_n - m;
+ ch1 += m * width;
+ ch2 += m * width;
+ ch3 += m * width;
+ goto beginning;
+ }
+}
+
+
+static void
+to_ciexyz(PARAMETERS(colour, ciexyz))
+{
+ libcolour_colour_t tmp;
+ switch (from->model) {
+ case LIBCOLOUR_RGB:
+ if (from->rgb.with_transfer) {
+ tmp.rgb = from->rgb;
+ tmp.rgb.with_transfer = 0;
+ to_rgb(ARGUMENTS(from, &tmp.rgb));
+ }
+ conversion_by_matrix(XARGUMENTS, RGB_TO_CIEXYZ(from->rgb.M));
+ break;
+ default:
+ tmp.srgb.model = LIBCOLOUR_SRGB;
+ tmp.srgb.with_transfer = 0;
+ to_srgb(ARGUMENTS(from, &tmp.srgb));
+ from = (const void *)&tmp.srgb;
+ /* fall through */
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ conversion_by_matrix(XARGUMENTS, SRGB_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_CIEXYY:
+ CONV_0(CIEXYY_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_CIEXYZ:
+ break;
+ case LIBCOLOUR_CIELAB:
+ CONV_0(CIELAB_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_CIELCHUV:
+ tmp.cieluv.model = LIBCOLOUR_CIELUV;
+ tmp.cieluv.white = from->cielchuv.white;
+ to_cieluv(ARGUMENTS(from, &tmp.cieluv));
+ from = (const void *)&tmp.cieluv;
+ /* fall through */
+ case LIBCOLOUR_CIELUV:
+ CONV_N(CIELUV_TO_CIEXYZ, from->cieluv.white.X, from->cieluv.white.Y, from->cieluv.white.Z);
+ break;
+ case LIBCOLOUR_YIQ:
+ conversion_by_matrix(XARGUMENTS, YIQ_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_YDBDR:
+ conversion_by_matrix(XARGUMENTS, YDBDR_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_YUV:
+ conversion_by_matrix(XARGUMENTS, YUV_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_YPBPR:
+ conversion_by_matrix(XARGUMENTS, YPBPR_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_YCGCO:
+ conversion_by_matrix(XARGUMENTS, YCGCO_TO_CIEXYZ);
+ break;
+ case LIBCOLOUR_CIEUVW:
+ tmp.cie1960ucs.model = LIBCOLOUR_CIE1960UCS;
+ to_cie1960ucs(ARGUMENTS(from, &tmp.cie1960ucs));
+ from = (const void *)&tmp.cie1960ucs;
+ /* fall through */
+ case LIBCOLOUR_CIE1960UCS:
+ CONV_0(CIE1960UCS_TO_CIEXYZ);
+ break;
+ }
+}
+
+
+static void
+to_cielab(PARAMETERS(colour, cielab))
+{
+ switch (from->model) {
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ CONV_0(CIEXYZ_TO_CIELAB);
+ break;
+ case LIBCOLOUR_CIELAB:
+ break;
+ }
+}
+
+
+static void
+to_cieluv(PARAMETERS(colour, cieluv))
+{
+ libcolour_ciexyz_t tmp;
+ libcolour_cielchuv_t tmp2;
+ TYPE m;
+ switch (from->model) {
+ case LIBCOLOUR_CIELCHUV:
+ if (to->white.X != from->cielchuv.white.X ||
+ to->white.Y != from->cielchuv.white.Y ||
+ to->white.Z != from->cielchuv.white.Z) {
+ tmp.model = LIBCOLOUR_CIEXYZ;
+ tmp2.model = LIBCOLOUR_CIELCHUV;
+ tmp2.white = to->white;
+ tmp2.one_revolution = PI2;
+ to_ciexyz(ARGUMENTS(from, &tmp));
+ to_cielchuv(ARGUMENTS((const libcolour_colour_t *)&tmp, &tmp2));
+ } else if (from->cielchuv.one_revolution != PI2) {
+ m = PI2 / from->cielchuv.one_revolution;
+ SIMPLE_LOOP(ch3, *ch3 *= m);
+ }
+ CONV_0(CIELCHUV_TO_CIELUV);
+ break;
+ case LIBCOLOUR_CIELUV:
+ if (to->white.X == from->cieluv.white.X &&
+ to->white.Y == from->cieluv.white.Y &&
+ to->white.Z == from->cieluv.white.Z)
+ break;
+ /* fall through */
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ CONV_N(CIEXYZ_TO_CIELUV, to->white.X, to->white.Y, to->white.Z);
+ break;
+ }
+}
+
+
+static void
+to_cielchuv(PARAMETERS(colour, cielchuv))
+{
+ libcolour_cieluv_t tmp1, tmp2;
+ TYPE m;
+ switch (from->model) {
+ case LIBCOLOUR_CIELCHUV:
+ if (to->white.X == from->cielchuv.white.X &&
+ to->white.Y == from->cielchuv.white.Y &&
+ to->white.Z == from->cielchuv.white.Z) {
+ if (to->one_revolution != from->cielchuv.one_revolution) {
+ m = to->one_revolution;
+ m /= from->cielchuv.one_revolution;
+ SIMPLE_LOOP(ch3, *ch3 *= m);
+ }
+ break;
+ }
+ /* fall through */
+ default:
+ tmp1.model = LIBCOLOUR_CIELUV;
+ tmp1.white = to->white;
+ to_cieluv(ARGUMENTS(from, &tmp1));
+ from = (const void *)&tmp1;
+ /* fall through */
+ case LIBCOLOUR_CIELUV:
+ if (to->white.X != from->cieluv.white.X ||
+ to->white.Y != from->cieluv.white.Y ||
+ to->white.Z != from->cieluv.white.Z) {
+ tmp2.model = LIBCOLOUR_CIELUV;
+ tmp2.white = to->white;
+ to_cieluv(ARGUMENTS(from, &tmp2));
+ from = (const void *)&tmp2;
+ }
+ CONV_N(CIELUV_TO_CIELCHUV, to->one_revolution);
+ break;
+ }
+}
+
+
+static void
+to_yiq(PARAMETERS(colour, yiq))
+{
+ switch (from->model) {
+ case LIBCOLOUR_YIQ:
+ break;
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ conversion_by_matrix(XARGUMENTS, SRGB_TO_YIQ);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_YIQ);
+ break;
+ }
+}
+
+
+static void
+to_ydbdr(PARAMETERS(colour, ydbdr))
+{
+ switch (from->model) {
+ case LIBCOLOUR_YDBDR:
+ break;
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ conversion_by_matrix(XARGUMENTS, SRGB_TO_YDBDR);
+ break;
+ case LIBCOLOUR_YUV:
+ CONV_0(YUV_TO_YDBDR);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_YDBDR);
+ break;
+ }
+}
+
+
+static void
+to_yuv(PARAMETERS(colour, yuv))
+{
+ switch (from->model) {
+ case LIBCOLOUR_YUV:
+ break;
+ case LIBCOLOUR_YDBDR:
+ CONV_0(YDBDR_TO_YUV);
+ break;
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ conversion_by_matrix(XARGUMENTS, SRGB_TO_YUV);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_YUV);
+ break;
+ }
+}
+
+
+static void
+to_ypbpr(PARAMETERS(colour, ypbpr))
+{
+ switch (from->model) {
+ case LIBCOLOUR_YPBPR:
+ break;
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ CONV_0(SRGB_TO_YPBPR);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_YPBPR);
+ break;
+ }
+}
+
+
+static void
+to_ycgco(PARAMETERS(colour, ycgco))
+{
+ switch (from->model) {
+ case LIBCOLOUR_YCGCO:
+ break;
+ case LIBCOLOUR_SRGB:
+ LINEAR_SRGB;
+ conversion_by_matrix(XARGUMENTS, SRGB_TO_YCGCO);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ conversion_by_matrix(XARGUMENTS, CIEXYZ_TO_YCGCO);
+ break;
+ }
+}
+
+
+static void
+to_cie1960ucs(PARAMETERS(colour, cie1960ucs))
+{
+ switch (from->model) {
+ case LIBCOLOUR_CIE1960UCS:
+ break;
+ case LIBCOLOUR_CIEUVW:
+ CONV_N(CIEUVW_TO_CIE1960UCS, from->cieuvw.u0, from->cieuvw.v0);
+ break;
+ default:
+ to_ciexyz(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIEXYZ:
+ CONV_0(CIEXYZ_TO_CIE1960UCS);
+ break;
+ }
+}
+
+
+static void
+to_cieuvw(PARAMETERS(colour, cieuvw))
+{
+ switch (from->model) {
+ case LIBCOLOUR_CIEUVW:
+ CONV_N(CIEUVW_TO_CIEUVW, from->cieuvw.u0, from->cieuvw.v0, to->u0, to->v0);
+ break;
+ default:
+ to_cie1960ucs(ARGUMENTS(from, NULL));
+ /* fall through */
+ case LIBCOLOUR_CIE1960UCS:
+ CONV_N(CIE1960UCS_TO_CIEUVW, to->u0, to->v0);
+ break;
+ }
+}
+
+
int
libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colour_t *to,
libcolour_convert_en_masse_mode_t mode, size_t n, ...)
@@ -10,8 +625,8 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou
int no_override = mode & LIBCOLOUR_CONVERT_EN_MASSE_NO_OVERRIDE;
va_list args;
TYPE *in1, *in2, *in3, *in_alpha = NULL;
- TYPE *out1, *out2, *out3, *out_alpha = NULL;
- size_t width, i;
+ TYPE *ch1, *ch2, *ch3, *ch_alpha = NULL;
+ size_t width;
if ((unsigned int)mode > 15U) {
errno = EINVAL;
@@ -49,28 +664,34 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou
}
if (!no_override) {
- out1 = in1;
- out2 = in2;
- out3 = in3;
- out_alpha = in_alpha;
+ ch1 = in1;
+ ch2 = in2;
+ ch3 = in3;
+ ch_alpha = in_alpha;
} else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_NO_ALPHA) {
- out1 = va_arg(args, TYPE *);
- out2 = out1 + 1;
- out3 = out1 + 2;
+ ch1 = va_arg(args, TYPE *);
+ ch2 = ch1 + 1;
+ ch3 = ch1 + 2;
+ memcpy(ch1, in1, n * 3 * sizeof(TYPE));
} else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_FIRST) {
- out_alpha = va_arg(args, TYPE *);
- out1 = out_alpha + 1;
- out2 = out_alpha + 2;
- out3 = out_alpha + 3;
+ ch_alpha = va_arg(args, TYPE *);
+ ch1 = ch_alpha + 1;
+ ch2 = ch_alpha + 2;
+ ch3 = ch_alpha + 3;
+ memcpy(ch_alpha, in_alpha, n * 4 * sizeof(TYPE));
} else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_LAST) {
- out1 = va_arg(args, TYPE *);
- out2 = out1 + 1;
- out3 = out1 + 2;
- out_alpha = out1 + 3;
+ ch1 = va_arg(args, TYPE *);
+ ch2 = ch1 + 1;
+ ch3 = ch1 + 2;
+ ch_alpha = ch1 + 3;
+ memcpy(ch1, in1, n * 4 * sizeof(TYPE));
} else {
- out1 = va_arg(args, TYPE *);
- out2 = va_arg(args, TYPE *);
- out3 = va_arg(args, TYPE *);
+ ch1 = va_arg(args, TYPE *);
+ ch2 = va_arg(args, TYPE *);
+ ch3 = va_arg(args, TYPE *);
+ memcpy(ch1, in1, n * sizeof(TYPE));
+ memcpy(ch2, in2, n * sizeof(TYPE));
+ memcpy(ch3, in3, n * sizeof(TYPE));
}
va_end(args);
@@ -85,38 +706,18 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou
}
switch (to->model) {
-#define X(C, T, N) case C: memcpy(&tto, to, sizeof(T)); break;
- LIST_MODELS(X)
+#define X(C, T, N)\
+ case C:\
+ memcpy(&tto, to, sizeof(T));\
+ to_##N(ARGUMENTS(&tfrom, &tto.N));\
+ break;
+ LIST_MODELS(X)
#undef X
default:
errno = EINVAL;
return -1;
}
- if (in_alpha != out_alpha) {
- for (i = 0; i < n; i++) {
- *out_alpha = *in_alpha;
- in_alpha += width;
- out_alpha += width;
- }
- }
-
- while (n--) {
- tfrom.rgb.R = *in1;
- tfrom.rgb.G = *in2;
- tfrom.rgb.B = *in3;
- libcolour_convert(&tfrom, &tto);
- *out1 = tto.rgb.R;
- *out2 = tto.rgb.G;
- *out3 = tto.rgb.B;
- in1 += width;
- in2 += width;
- in3 += width;
- out1 += width;
- out2 += width;
- out3 += width;
- }
-
(void) on_cpu;
return 0;
}
diff --git a/float.c b/float.c
index 185423e..c1e28a5 100644
--- a/float.c
+++ b/float.c
@@ -82,6 +82,6 @@
#define libcolour_convert_en_masse libcolour_convert_en_masse_f
#include "common.h"
-#include "convert-template.c"
+#include "conversions.h"
#include "libcolour-template.c"
#include "en_masse-template.c"
diff --git a/libcolour-template.c b/libcolour-template.c
index 9d0fb0b..bfbbd3e 100644
--- a/libcolour-template.c
+++ b/libcolour-template.c
@@ -8,6 +8,18 @@ TYPE libcolour_srgb_decode(TYPE t) { return srgb_decode(t); }
int
+libcolour_convert(const libcolour_colour_t *from, libcolour_colour_t *to)
+{
+ return libcolour_convert_en_masse(from, to,
+ LIBCOLOUR_CONVERT_EN_MASSE_SEPARATED |
+ LIBCOLOUR_CONVERT_EN_MASSE_ON_CPU |
+ LIBCOLOUR_CONVERT_EN_MASSE_NO_OVERRIDE, 1,
+ &from->srgb.R, &from->srgb.G, &from->srgb.B,
+ &to->srgb.R, &to->srgb.G, &to->srgb.B);
+}
+
+
+int
libcolour_delta_e(const libcolour_colour_t *a, const libcolour_colour_t *b, TYPE *e)
{
libcolour_cielab_t u, v;
diff --git a/long-double.c b/long-double.c
index 65954c3..350ef87 100644
--- a/long-double.c
+++ b/long-double.c
@@ -82,6 +82,6 @@
#define libcolour_convert_en_masse libcolour_convert_en_masse_llf
#include "common.h"
-#include "convert-template.c"
+#include "conversions.h"
#include "libcolour-template.c"
#include "en_masse-template.c"
diff --git a/test.c b/test.c
index c5cf8d5..2829f12 100644
--- a/test.c
+++ b/test.c
@@ -11,6 +11,8 @@
#define libcolour_colour_t libcolour_colour_lf_t
#define libcolour_rgb_t libcolour_rgb_lf_t
+#define libcolour_srgb_t libcolour_srgb_lf_t
+#define libcolour_ciexyy_t libcolour_ciexyy_lf_t
#define libcolour_unmarshal libcolour_unmarshal_lf
@@ -87,7 +89,7 @@ test_2convert(libcolour_colour_t *c1, libcolour_colour_t *c2, libcolour_colour_t
return 0;
return 1;
}
-
+
static int
test_2convert_11(libcolour_colour_t *c1, libcolour_model_t model)
@@ -112,7 +114,7 @@ test_2convert_11(libcolour_colour_t *c1, libcolour_model_t model)
return r1 & r2;
case LIBCOLOUR_CIELCHUV:
c2.cielchuv.one_revolution = 360.;
- /* fall though */
+ /* fall through */
case LIBCOLOUR_CIELUV:
c2.cieluv.white.model = LIBCOLOUR_CIEXYZ;
c2.cieluv.white.X = 1.0294;
@@ -143,7 +145,7 @@ test_2convert_1n(libcolour_model_t model, const char *model_name, double ch1, do
case LIBCOLOUR_CIELCHUV:
if (ch3 > 0.9999)
return 1;
- /* fall though */
+ /* fall through */
default:
c1.srgb.R = ch1, c1.srgb.G = ch2, c1.srgb.B = ch3;
break;
@@ -182,7 +184,7 @@ test_2convert_1n(libcolour_model_t model, const char *model_name, double ch1, do
c1.cieluv.white.Y = 1;
c1.cieluv.white.Z = 0.9118;
} else if (run == 3 && model == LIBCOLOUR_CIELCHUV) {
- c1.cieluv.white.X = 1.03;
+ c1.cieluv.white.X = 1.03;
c1.cieluv.white.Y = 0.8;
c1.cieluv.white.Z = 0.92;
} else {
@@ -435,6 +437,47 @@ test_en_masse(libcolour_colour_t *c1, libcolour_colour_t *c2, libcolour_colour_t
}
+static int
+test_partitioned_en_masse(void)
+{
+ libcolour_srgb_t from;
+ libcolour_ciexyy_t to;
+ double ch1[32], ch2[32], ch3[32];
+ int i;
+
+ from.model = LIBCOLOUR_SRGB;
+ from.with_transfer = 0;
+ to.model = LIBCOLOUR_CIEXYY;
+
+ for (i = 0; i < 32; i++) {
+ ch1[i] = (i + 1.) / 32.;
+ ch2[i] = (i + 1.) / 32.;
+ ch3[i] = (i + 1.) / 32.;
+ }
+
+ for (i = 3; i < 6; i++) ch1[i] = ch2[i] = ch3[i] = 0;
+ for (i = 20; i < 30; i++) ch1[i] = ch2[i] = ch3[i] = 0;
+
+ if (libcolour_convert_en_masse(&from, &to, LIBCOLOUR_CONVERT_EN_MASSE_SEPARATED, 32, ch1, ch2, ch3))
+ return -1;
+
+ for (i = 0; i < 32; i++) {
+ if ((3 <= i && i < 6) || (20 <= i && i < 30))
+ from.R = from.G = from.B = 0;
+ else
+ from.R = from.G = from.B = (i + 1.) / 32.;
+ if (libcolour_convert(&from, &to))
+ return -1;
+ if (ch1[i] != to.x || ch2[i] != to.y || ch3[i] != to.Y) {
+ printf("test_partitioned_en_masse failed at %i\n", i);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
/**
* Test libcolour
*
@@ -467,7 +510,7 @@ main(int argc, char *argv[])
c2.model = LIBCOLOUR_RGB;
c2.rgb.with_transfer = 0;
if (libcolour_get_rgb_colour_space(&c2.rgb, LIBCOLOUR_RGB_COLOUR_SPACE_SRGB)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
+ printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 1;
goto colour_spaces_done;
}
if (c2.rgb.white_r != 1 || c2.rgb.white_g != 1 || c2.rgb.white_b != 1 ||
@@ -477,7 +520,7 @@ main(int argc, char *argv[])
c2.rgb.encoding_type != LIBCOLOUR_ENCODING_TYPE_REGULAR || c2.rgb.SLOPE != 12.92
|| c2.rgb.OFFSET != 0.055 || c2.rgb.TRANSITIONINV != c2.rgb.TRANSITION * c2.rgb.SLOPE ||
!ftest(c2.rgb.TRANSITION, 0.00313067, 0.00000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
+ printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 1;
goto colour_spaces_done;
}
t1 = c2.rgb.TRANSITION * c2.rgb.SLOPE;
@@ -488,21 +531,21 @@ main(int argc, char *argv[])
c2.rgb.blue.x != 0.15 || c2.rgb.blue.y != 0.06 || !ftest(c2.rgb.blue.Y, 0.07215, 0.00005) ||
!ftest(c2.rgb.white.x, 0.312727, 0.000001) || !ftest(c2.rgb.white.y, 0.329023, 0.000001) ||
!ftest(c2.rgb.red.Y + c2.rgb.green.Y + c2.rgb.blue.Y, 1, 0.00000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
+ printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 1;
goto colour_spaces_done;
}
if (libcolour_convert(&c1, &c2) ||
!ftest(c1.srgb.R, c2.rgb.R, 0.0000001) ||
!ftest(c1.srgb.G, c2.rgb.G, 0.0000001) ||
!ftest(c1.srgb.B, c2.rgb.B, 0.0000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
+ printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 1;
goto colour_spaces_done;
}
if (libcolour_convert(&c2, &c1) ||
!ftest(c1.srgb.R, c2.rgb.R, 0.0000001) ||
!ftest(c1.srgb.G, c2.rgb.G, 0.0000001) ||
!ftest(c1.srgb.B, c2.rgb.B, 0.0000001)) {
- printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 0;
+ printf("LIBCOLOUR_RGB_COLOUR_SPACE_SRGB failed\n"), rc = 1;
goto colour_spaces_done;
}
@@ -511,7 +554,7 @@ main(int argc, char *argv[])
c1.cielab.a = 40, c2.cielab.a = -10;
c1.cielab.b = -50, c2.cielab.b = -40;
if (libcolour_delta_e(&c1, &c2, &t1) || !ftest(t1, 71.4142842854285, 0.0000001))
- printf("libcolour_delta_e failed\n"), rc = 0;
+ printf("libcolour_delta_e failed\n"), rc = 1;
rc &= test_rgb(LIBCOLOUR_RGB_COLOUR_SPACE_ADOBE_RGB, 0.3, 0.2, 0.9,
0.379497, 0.282430, 0.914245, 0.195429, 0.098925, 0.790020);
@@ -609,7 +652,7 @@ main(int argc, char *argv[])
!ftest(libcolour_srgb_encode(c1.rgb.R), c2.srgb.R, 0.00000000001) ||
!ftest(libcolour_srgb_encode(c1.rgb.G), c2.srgb.G, 0.00000000001) ||
!ftest(libcolour_srgb_encode(c1.rgb.B), c2.srgb.B, 0.00000000001)) {
- printf("libcolour_srgb_encode failed\n"), rc = 0;
+ printf("libcolour_srgb_encode failed\n"), rc = 1;
goto colour_spaces_done;
}
if (libcolour_convert(&c2, &c1))
@@ -622,7 +665,7 @@ main(int argc, char *argv[])
!ftest(libcolour_srgb_decode(c2.rgb.R), c1.srgb.R, 0.00000000001) ||
!ftest(libcolour_srgb_decode(c2.rgb.G), c1.srgb.G, 0.00000000001) ||
!ftest(libcolour_srgb_decode(c2.rgb.B), c1.srgb.B, 0.00000000001)) {
- printf("libcolour_srgb_decode failed\n"), rc = 0;
+ printf("libcolour_srgb_decode failed\n"), rc = 1;
goto colour_spaces_done;
}
}
@@ -645,7 +688,7 @@ main(int argc, char *argv[])
if (!ftest(c1.rgb.R, c4.srgb.R, 0.0000001) ||
!ftest(c1.rgb.G, c4.srgb.G, 0.0000001) ||
!ftest(c1.rgb.B, c4.srgb.B, 0.0000001)) {
- printf("libcolour_convert failed to convert between two transfer functions\n"), rc = 0;
+ printf("libcolour_convert failed to convert between two transfer functions\n"), rc = 1;
goto colour_spaces_done;
}
@@ -654,7 +697,7 @@ main(int argc, char *argv[])
if (!ftest(c1.rgb.R, c4.srgb.R, 0.0000001) ||
!ftest(c1.rgb.G, c4.srgb.G, 0.0000001) ||
!ftest(c1.rgb.B, c4.srgb.B, 0.0000001)) {
- printf("libcolour_convert failed to convert when two different transfer functions are not applied\n"), rc = 0;
+ printf("libcolour_convert failed to convert when two different transfer functions are not applied\n"), rc = 1;
goto colour_spaces_done;
}
@@ -710,27 +753,27 @@ colour_spaces_done:
c1.rgb.TO_DECODED_GREEN = NULL;
c1.rgb.TO_DECODED_BLUE = NULL;
if (libcolour_marshal(&c1, NULL) > sizeof(buf)) {
- printf("libcolour_marshal failed\n"), rc = 0;
+ printf("libcolour_marshal failed\n"), rc = 1;
goto marshal_done;
}
n = libcolour_marshal(&c1, buf);
if (n > sizeof(buf)) {
- printf("libcolour_marshal failed\n"), rc = 0;
+ printf("libcolour_marshal failed\n"), rc = 1;
goto marshal_done;
}
if (libcolour_unmarshal(NULL, buf) != n) {
- printf("libcolour_unmarshal failed\n"), rc = 0;
+ printf("libcolour_unmarshal failed\n"), rc = 1;
goto marshal_done;
}
if (libcolour_unmarshal(&c2, buf) != n) {
- printf("libcolour_unmarshal failed\n"), rc = 0;
+ printf("libcolour_unmarshal failed\n"), rc = 1;
goto marshal_done;
}
if (memcmp(&c2, &c3, sizeof(c2))) {
- printf("libcolour_(un)marshal failed\n"), rc = 0;
+ printf("libcolour_(un)marshal failed\n"), rc = 1;
goto marshal_done;
}
- marshal_done:
+marshal_done:
c1.srgb.model = LIBCOLOUR_SRGB;
c1.srgb.R = 0.8;
@@ -743,13 +786,21 @@ colour_spaces_done:
c2.srgb.B = 0.3;
c2.srgb.with_transfer = 1;
c3.model = LIBCOLOUR_CIEXYZ;
- for (i = 0; i < 15; i++)
- if (test_en_masse(&c1, &c2, &c3, i))
+ for (i = 0; i < 15; i++) {
+ if (test_en_masse(&c1, &c2, &c3, i)) {
+ rc = 1;
goto en_masse_done;
- en_masse_done:
+ }
+ }
+
+ if (test_partitioned_en_masse()) {
+ rc = 1;
+ goto en_masse_done;
+ }
+en_masse_done:
return rc;
- fail:
+fail:
perror(*argv);
(void) argc;
return 2;
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-02 15:52:58 +0000