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-rw-r--r--Makefile3
-rw-r--r--config.mk6
-rw-r--r--libclut.c5
-rw-r--r--libclut.h54
-rw-r--r--test.c28
5 files changed, 61 insertions, 35 deletions
diff --git a/Makefile b/Makefile
index 9230325..ac15b3a 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,8 @@ include $(CONFIGFILE)
VERSION_MAJOR = 1
VERSION = 1.2
-all: libclut.a libclut.so
+
+all: libclut.a libclut.so test
libclut.o: libclut.c libclut.h
$(CC) -c -o $@ libclut.c $(CPPFLAGS) $(CFLAGS)
diff --git a/config.mk b/config.mk
index 95f41fe..9b1bc39 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,8 @@
-PREFIX = /usr
+PREFIX = /usr
MANPREFIX = $(PREFIX)/share/man
+CC = cc
+
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
-CFLAGS = -std=c99 -Wall
+CFLAGS = -std=c99 -Wall -O2
LDFLAGS = -lm -s
diff --git a/libclut.c b/libclut.c
index 911fdce..1136acf 100644
--- a/libclut.c
+++ b/libclut.c
@@ -3,6 +3,11 @@
#include <errno.h>
+#if defined(__GNUC__)
+# pragma GCC diagnostic ignored "-Wunsuffixed-float-constants"
+#endif
+
+
/**
* Convert one component from [0, 1] linear sRGB to [0, 1] sRGB
*
diff --git a/libclut.h b/libclut.h
index f318df2..c156ff9 100644
--- a/libclut.h
+++ b/libclut.h
@@ -6,6 +6,7 @@
#include <string.h>
#include <math.h>
+
/* Not documented, may be removed or modified in the future. */
#define LIBCLUT_ILLUMINANT_A .white_x = 0.44757, .white_y = 0.40745, .white_Y = 1
#define LIBCLUT_ILLUMINANT_B .white_x = 0.34842, .white_y = 0.35161, .white_Y = 1
@@ -713,26 +714,27 @@ static inline int libclut_0__(double x) { return libclut_eq__(x, 0);
double w__;\
size_t i__, j__, jj__;\
for (i__ = 0; i__ < rn__; i__++) {\
- w__ = (double)i__ * gn__ / rn__;\
+ w__ = (double)i__ * (double)gn__ / (double)rn__;\
j__ = (size_t)w__;\
jj__ = j__ == gn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->green[j__] / m__;\
y__ = (clut)->green[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
g__ = x__ * (1 - w__) + y__ * w__;\
\
- w__ = (double)i__ * bn__ / rn__;\
+ w__ = (double)i__ * (double)bn__ / (double)rn__;\
j__ = (size_t)w__;\
jj__ = j__ == bn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->blue[j__] / m__;\
y__ = (clut)->blue[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
b__ = x__ * (1 - w__) + y__ * w__;\
\
+ r__ = (clut)->red[i__] / m__;\
r__ = (M)[0][0] * r__ + (M)[0][1] * g__ + (M)[0][2] * b__;\
r__ = libclut_model_linear_to_standard1(r__);\
r__ *= m__;\
@@ -745,27 +747,28 @@ static inline int libclut_0__(double x) { return libclut_eq__(x, 0);
(out)->red[i__] = (type)r__;\
}\
for (i__ = 0; i__ < gn__; i__++) {\
- w__ = (double)i__ * rn__ / gn__;\
+ w__ = (double)i__ * (double)rn__ / (double)gn__;\
j__ = (size_t)w__;\
jj__ = j__ == rn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->red[j__] / m__;\
y__ = (clut)->red[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
r__ = x__ * (1 - w__) + y__ * w__;\
\
- w__ = (double)i__ * bn__ / gn__;\
+ w__ = (double)i__ * (double)bn__ / (double)gn__;\
j__ = (size_t)w__;\
jj__ = j__ == bn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->blue[j__] / m__;\
y__ = (clut)->blue[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
b__ = x__ * (1 - w__) + y__ * w__;\
\
- g__ = (M)[1][0] * r__ + (M)[0][1] * g__ + (M)[1][2] * b__;\
+ g__ = (clut)->green[i__] / m__;\
+ g__ = (M)[1][0] * r__ + (M)[1][1] * g__ + (M)[1][2] * b__;\
g__ = libclut_model_linear_to_standard1(g__);\
g__ *= m__;\
if (trunc) {\
@@ -777,26 +780,27 @@ static inline int libclut_0__(double x) { return libclut_eq__(x, 0);
(out)->green[i__] = (type)g__;\
}\
for (i__ = 0; i__ < bn__; i__++) {\
- w__ = (double)i__ * rn__ / bn__;\
+ w__ = (double)i__ * (double)rn__ / (double)bn__;\
j__ = (size_t)w__;\
jj__ = j__ == rn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->red[j__] / m__;\
y__ = (clut)->red[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
r__ = x__ * (1 - w__) + y__ * w__;\
\
- w__ = (double)i__ * gn__ / bn__;\
+ w__ = (double)i__ * (double)gn__ / (double)bn__;\
j__ = (size_t)w__;\
jj__ = j__ == gn__ ? j__ : (j__ + 1);\
- w__ = fmod(j__, (double)1);\
+ w__ -= (double)j__;\
x__ = (clut)->green[j__] / m__;\
y__ = (clut)->green[jj__] / m__;\
x__ = libclut_model_standard_to_linear1(x__);\
y__ = libclut_model_standard_to_linear1(y__);\
g__ = x__ * (1 - w__) + y__ * w__;\
\
+ b__ = (clut)->blue[i__] / m__;\
b__ = (M)[2][0] * r__ + (M)[2][1] * g__ + (M)[2][2] * b__;\
b__ = libclut_model_linear_to_standard1(b__);\
b__ *= m__;\
@@ -1983,12 +1987,12 @@ void (libclut_model_cieluv_to_cielch)(double, double, double *, double *);
void (libclut_model_srgb_to_yiq)(double, double, double, double *, double *, double *);
#define libclut_model_srgb_to_yiq(r, g, b, y, i, q)\
do {\
- double r__ = libclut_model_standard_to_linear1(r) / 100000000000000000ULL;\
- double g__ = libclut_model_standard_to_linear1(g) / 10000000000000000ULL;\
- double b__ = libclut_model_standard_to_linear1(b) / 100000000000000000ULL;\
- *(y) = r__ * 29893602129377540ULL + g__ * 5870430744511212ULL + b__ * 11402090425510336ULL;\
- *(i) = r__ * 59594574307079930ULL - g__ * 2743886357457892ULL - b__ * 32155710732501010ULL;\
- *(q) = r__ * 21149734030682846ULL - g__ * 5229106903029739ULL + b__ * 31141334999614540ULL;\
+ double r__ = libclut_model_standard_to_linear1(r);\
+ double g__ = libclut_model_standard_to_linear1(g);\
+ double b__ = libclut_model_standard_to_linear1(b);\
+ *(y) = r__ * 0.29893602129377540 + g__ * 0.58704307445112120 + b__ * 0.11402090425510336;\
+ *(i) = r__ * 0.59594574307079930 - g__ * 0.27438863574578920 - b__ * 0.32155710732501010;\
+ *(q) = r__ * 0.21149734030682846 - g__ * 0.52291069030297390 + b__ * 0.31141334999614540;\
} while (0)
/**
@@ -2327,12 +2331,12 @@ int libclut_model_get_rgb_conversion_matrix(const libclut_rgb_colour_space_t *,
void (libclut_model_convert_rgb)(double, double, double, libclut_colour_space_conversion_matrix_t, double *, double *, double *);
#define libclut_model_convert_rgb(r, g, b, M, out_r, out_g, out_b)\
do {\
- double r__ = libclut_model_standard_to_linear1(r);\
- double g__ = libclut_model_standard_to_linear1(g);\
- double b__ = libclut_model_standard_to_linear1(b);\
- *(out_r) = libclut_model_linear_to_standard1((M)[0][0] * r__ + (M)[0][1] * g__ + (M)[0][2] * b__);\
- *(out_g) = libclut_model_linear_to_standard1((M)[1][0] * r__ + (M)[1][1] * g__ + (M)[1][2] * b__);\
- *(out_b) = libclut_model_linear_to_standard1((M)[2][0] * r__ + (M)[2][1] * g__ + (M)[2][2] * b__);\
+ double r___ = libclut_model_standard_to_linear1(r);\
+ double g___ = libclut_model_standard_to_linear1(g);\
+ double b___ = libclut_model_standard_to_linear1(b);\
+ *(out_r) = libclut_model_linear_to_standard1((M)[0][0] * r___ + (M)[0][1] * g___ + (M)[0][2] * b___);\
+ *(out_g) = libclut_model_linear_to_standard1((M)[1][0] * r___ + (M)[1][1] * g___ + (M)[1][2] * b___);\
+ *(out_b) = libclut_model_linear_to_standard1((M)[2][0] * r___ + (M)[2][1] * g___ + (M)[2][2] * b___);\
} while (0)
/**
diff --git a/test.c b/test.c
index 4a37afc..b49ac75 100644
--- a/test.c
+++ b/test.c
@@ -8,6 +8,11 @@
#include <string.h>
#include <math.h>
+#if defined(__GNUC__)
+# pragma GCC diagnostic ignored "-Wunsuffixed-float-constants"
+#endif
+
+
struct clut {
size_t red_size;
size_t green_size;
@@ -201,14 +206,14 @@ main(int argc, char *argv[])
param = 2;
for (i = 0; i < 256; i++) {
- double x = (double)i / 255;
+ double t = (double)i / 255;
if (i % 255) {
- x = 1 / x - 1;
- x = log(x);
- x = HALF - x / param;
+ t = 1 / t - 1;
+ t = log(t);
+ t = HALF - t / param;
}
t1.blue[i] = t1.green[i] = t1.red[i] = (uint16_t)((i << 8) | i);
- t2.blue[i] = t2.green[i] = t2.red[i] = (uint16_t)(x * UINT16_MAX);
+ t2.blue[i] = t2.green[i] = t2.red[i] = (uint16_t)(t * UINT16_MAX);
}
libclut_sigmoid(&t1, UINT16_MAX, uint16_t, &param, &param, &param);
t1.blue[0] = t1.green[0] = t1.red[0] = t2.red[0];
@@ -296,8 +301,17 @@ main(int argc, char *argv[])
goto rgb_conversion_done;
}
- libclut_convert_rgb_inplace(&t1, 1, double, M, trunc); /* TODO test */
- libclut_convert_rgb(&t1, 1, double, M, trunc, &t2); /* TODO test */
+#if defined(__GNUC__)
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Waddress"
+#endif
+
+ libclut_convert_rgb_inplace(&d1, 1, double, M, trunc); /* TODO test */
+ libclut_convert_rgb(&d1, 1, double, M, trunc, &d2); /* TODO test */
+
+#if defined(__GNUC__)
+# pragma GCC diagnostic pop
+#endif
if (libclut_model_get_rgb_conversion_matrix(&srgb, NULL, M, Minv)) {
printf("libclut_model_get_rgb_conversion_matrix failed\n"), rc = 1;
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-21 15:50:20 +0000