Clean up

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 0 insertions, 191 deletions

diff --git a/src/blackbody.c b/src/blackbody.c
deleted file mode 100644
index a46b5a6..0000000
--- a/src/blackbody.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/**
- * Copyright © 2016  Mattias Andrée <maandree@member.fsf.org>
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#if __GNUC__
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wunsuffixed-float-constants"
-#endif
-
-
-#ifndef LIBRED_COMPILING_PARSER
-#include "libred.h"
-#include "macros.h"
-#include <math.h>
-#include <errno.h>
-#include <fcntl.h>
-
-
-
-/**
- * The file descriptor to the colour lookup table.
- */
-int libred_fd = -1;
-
-
-
-/**
- * This function must be called, once,
- * before calling `libred_get_colour`.
- * 
- * @return  0 on success, -1 on error.
- * 
- * @throws  Any error specified for `open(3)`.
- */
-int libred_init_colour(void)
-{
-  libred_term_colour();
-  libred_fd = open(SYSDEPRESDIR "/" PACKAGE "/10deg", O_RDONLY);
-  return libred_fd < 0 ? -1 : 0;
-}
-
-
-/**
- * Call this when the process will not
- * longer make calls to `libred_get_colour`.
- */
-void libred_term_colour(void)
-{
-  if (libred_fd >= 0)
-    close(libred_fd), libred_fd = -1;
-}
-
-
-#endif
-/**
- * Convert from CIE xyY to [0, 1] sRGB.
- * 
- * @param  x  The 'x' component.
- * @param  y  The 'y' component.
- * @param  Y  The 'Y' component.
- * @param  r  Output parameter for the “red” value.
- *            (Seriously, sRGB red is orange, just look at it fullscreen.)
- * @param  g  Output parameter for the green value.
- * @param  b  Output parameter for the blue value.
- */
-static void ciexyy_to_srgb(double x, double y, double Y, double *r, double *g, double *b)
-{
-#define SRGB(C)  (((C) <= 0.0031308) ? (12.92 * (C)) : ((1.0 + 0.055) * pow((C), 1.0 / 2.4) - 0.055))
-  double X, Z;
-  
-#if __GNUC__
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-  /* Convert CIE xyY to CIE XYZ. */
-  X = Y * (y == 0.0 ? 0.0 : (x / y));
-  Z = Y * (y == 0.0 ? 0.0 : ((1.0 - x - y) / y));
-#if __GNUC__
-# pragma GCC diagnostic pop
-#endif
-  
-  /* Convert CIE XYZ to [0, 1] linear RGB. (ciexyz_to_linear) */
-  *r = ( 3.240450 * X) + (-1.537140 * Y) + (-0.4985320 * Z);
-  *g = (-0.969266 * X) + ( 1.876010 * Y) + ( 0.0415561 * Z);
-  *b = (0.0556434 * X) + (-0.204026 * Y) + ( 1.0572300 * Z);
-  
-  /* Convert [0, 1] linear RGB to [0, 1] sRGB. */
-  SRGB(*r), SRGB(*g), SRGB(*b);
-}
-#ifndef LIBRED_COMPILING_PARSER
-
-
-/**
- * Perform linear interpolation (considered very good)
- * between the CIE xyY values for two colour temperatures
- * and convert the result to sRGB. The two colours should
- * be the closest below the desired colour temperature,
- * and the closest above the desired colour temperature.
- * 
- * @param  x1    The 'x' component for the low colour.
- * @param  y1    The 'y' component for the low colour.
- * @param  x2    The 'x' component for the high colour.
- * @param  y2    The 'y' component for the high colour.
- * @param  temp  The desired colour temperature.
- * @param  r     Output parameter for the “red” value.
- * @param  g     Output parameter for the green value.
- * @param  b     Output parameter for the blue value.
- */
-static void interpolate(double x1, double y1, double x2, double y2, double temp, double* r, double* g, double* b)
-{
-  double weight = fmod(temp, (double)LIBRED_DELTA_TEMPERATURE) / (double)LIBRED_DELTA_TEMPERATURE;
-  double x = x1 * (1 - weight) + x2 * weight;
-  double y = y1 * (1 - weight) + y2 * weight;
-  ciexyy_to_srgb(x, y, 1.0, r, g, b);
-}
-
-
-/**
- * Get the [0, 1] sRGB values of a colour temperature.
- * 
- * @param   temp  The desired colour temperature.
- * @param   r     Output parameter for the “red” value.
- * @param   g     Output parameter for the green value.
- * @param   b     Output parameter for the blue value.
- * @return        0 on succeess, -1 on error.
- * 
- * @throws  EOVERFLOW  The file did not have the expected size.
- * @throws  EDOM       The selected temperature is below 1000 K.
- * @throws             Any error specified for pread(3).
- */
-int libred_get_colour(long int temp, double* r, double* g, double* b)
-{
-  double values[10]; /* low:x,y,r,g,b + high:x,y,r,g,b */
-  off_t offset;
-  double max;
-  
-  /* We do not have any values for above 40 000 K, but
-   * the differences will be unnoticeable, perhaps even
-   * unencodeable. */
-  if (temp > LIBRED_HIGHEST_TEMPERATURE)  temp = LIBRED_HIGHEST_TEMPERATURE;
-  /* Things do not glow below 1000 K. Yes, fire is hot! */
-  if (temp < LIBRED_LOWEST_TEMPERATURE)   t ((errno = EDOM));
-  
-  /* Read table. */
-  offset = ((off_t)temp - LIBRED_LOWEST_TEMPERATURE) / LIBRED_DELTA_TEMPERATURE;
-  offset *= (off_t)(sizeof(values) / 2);
-  errno = EOVERFLOW; xpread(libred_fd, values, sizeof(values), offset);
-  
-  /* Get colour. */
-  if (temp % LIBRED_DELTA_TEMPERATURE)
-    interpolate(values[0], values[1], values[6], values[7], (double)temp, r, g, b);
-  else
-    *r = values[2], *g = values[3], *b = values[4];
-  
-  /* Adjust colours for use. */
-  max = fmax(fmax(fabs(*r), fabs(*g)), fabs(*b));
-#if __GNUC__
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wfloat-equal"
-#endif
-  if (max != 0.0)  *r /= max, *g /= max, *b /= max;
-#if __GNUC__
-# pragma GCC diagnostic pop
-#endif
-  *r = *r > 0.0 ? *r : 0.0;
-  *g = *g > 0.0 ? *g : 0.0;
-  *b = *b > 0.0 ? *b : 0.0;
-  
-  return 0;
- fail:
-  return -1;
-}
-#endif
-
-
-#if __GNUC__
-# pragma GCC diagnostic pop
-#endif
-