Change license and style, reorganise file, make makefile portable, and fix bugs1.3

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

1 files changed, 0 insertions, 398 deletions

diff --git a/src/servers/gamma.c b/src/servers/gamma.c
deleted file mode 100644
index 17105d4..0000000
--- a/src/servers/gamma.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/**
- * coopgammad -- Cooperative gamma server
- * Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
- * 
- * 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/>.
- */
-#include "gamma.h"
-#include "crtc.h"
-#include "../state.h"
-#include "../communication.h"
-#include "../util.h"
-
-#include <errno.h>
-#include <string.h>
-
-
-
-#if defined(__clang__)
-# pragma GCC diagnostic ignored "-Wswitch-enum"
-#endif
-
-
-
-/**
- * Handle a ‘Command: set-gamma’ message
- * 
- * @param   conn        The index of the connection
- * @param   message_id  The value of the ‘Message ID’ header
- * @param   crtc        The value of the ‘CRTC’ header
- * @return              Zero on success (even if ignored), -1 on error,
- *                      1 if connection closed
- */
-int handle_get_gamma_info(size_t conn, const char* restrict message_id, const char* restrict crtc)
-{
-  struct output* restrict output;
-  char* restrict buf;
-  char depth[3];
-  const char* supported;
-  const char* colourspace;
-  char gamut[8 * sizeof("White x: 1023")];
-  size_t n;
-  
-  if (crtc == NULL)  return send_error("protocol error: 'CRTC' header omitted");
-  
-  output = output_find_by_name(crtc, outputs, outputs_n);
-  if (output == NULL)
-    return send_error("selected CRTC does not exist");
-  
-  switch (output->depth)
-    {
-    case -2:  strcpy(depth, "d");  break;
-    case -1:  strcpy(depth, "f");  break;
-    default:
-      sprintf(depth, "%i", output->depth);
-      break;
-    }
-  
-  switch (output->supported)
-    {
-    case LIBGAMMA_YES:    supported = "yes";    break;
-    case LIBGAMMA_NO:     supported = "no";     break;
-    default:              supported = "maybe";  break;
-    }
-  
-  switch (output->colourspace)
-    {
-    case COLOURSPACE_SRGB_SANS_GAMUT:
-    case COLOURSPACE_SRGB:     colourspace = "Colour space: sRGB\n";     break;
-    case COLOURSPACE_RGB_SANS_GAMUT:
-    case COLOURSPACE_RGB:      colourspace = "Colour space: RGB\n";      break;
-    case COLOURSPACE_NON_RGB:  colourspace = "Colour space: non-RGB\n";  break;
-    case COLOURSPACE_GREY:     colourspace = "Colour space: grey\n";     break;
-    default:                   colourspace = "";                         break;
-    }
-  
-  switch (output->colourspace)
-    {
-    case COLOURSPACE_SRGB:
-    case COLOURSPACE_RGB:
-      sprintf(gamut,
-	      "Red x: %u\n"
-	      "Red y: %u\n"
-	      "Green x: %u\n"
-	      "Green y: %u\n"
-	      "Blue x: %u\n"
-	      "Blue y: %u\n"
-	      "White x: %u\n"
-	      "White y: %u\n",
-	      output->red_x, output->red_y, output->green_x, output->green_y,
-	      output->blue_x, output->blue_y, output->white_x, output->white_y);
-      break;
-    default:
-      *gamut = '\0';
-      break;
-    }
-  
-  MAKE_MESSAGE(&buf, &n, 0,
-	       "In response to: %s\n"
-	       "Cooperative: yes\n" /* In mds: say ‘no’, mds-coopgamma changes to ‘yes’.” */
-	       "Depth: %s\n"
-	       "Red size: %zu\n"
-	       "Green size: %zu\n"
-	       "Blue size: %zu\n"
-	       "Gamma support: %s\n"
-	       "%s%s"
-	       "\n",
-	       message_id, depth, output->red_size, output->green_size,
-	       output->blue_size, supported, gamut, colourspace);
-  
-  return send_message(conn, buf, n);
-}
-
-
-/**
- * Set the gamma ramps on an output
- * 
- * @param  output  The output
- * @param  ramps   The gamma ramps
- */
-void set_gamma(const struct output* restrict output, const union gamma_ramps* restrict ramps)
-{
-  int r = 0;
-  
-  if (!connected)
-    return;
-  
-  switch (output->depth)
-    {
-    case  8:  r = libgamma_crtc_set_gamma_ramps8(output->crtc,  ramps->u8);   break;
-    case 16:  r = libgamma_crtc_set_gamma_ramps16(output->crtc, ramps->u16);  break;
-    case 32:  r = libgamma_crtc_set_gamma_ramps32(output->crtc, ramps->u32);  break;
-    case 64:  r = libgamma_crtc_set_gamma_ramps64(output->crtc, ramps->u64);  break;
-    case -1:  r = libgamma_crtc_set_gamma_rampsf(output->crtc,  ramps->f);    break;
-    case -2:  r = libgamma_crtc_set_gamma_rampsd(output->crtc,  ramps->d);    break;
-    default:
-      abort();
-    }
-  if (r)
-    libgamma_perror(argv0, r); /* Not fatal */
-}
-
-
-/**
- * Parse the EDID of a monitor
- * 
- * @param  output  The output
- * @param  edid    The EDID in binary format
- * @param  n       The length of the EDID
- */
-static void parse_edid(struct output* restrict output, const unsigned char* restrict edid, size_t n)
-{
-  size_t i;
-  int analogue;
-  unsigned sum;
-  
-  output->red_x = output->green_x = output->blue_x = output->white_x = 0;
-  output->red_y = output->green_y = output->blue_y = output->white_y = 0;
-  output->colourspace = COLOURSPACE_UNKNOWN;
-  
-  if ((edid == NULL) || (n < 128))
-    return;
-  for (i = 0, sum = 0; i < 128; i++)
-    sum += (unsigned)edid[i];
-  if ((sum & 0xFF) != 0)
-    return;
-  if ((edid[0] != 0) || (edid[7] != 0))
-    return;
-  for (i = 1; i < 7; i++)
-    if (edid[i] != 0xFF)
-      return;
-  
-  analogue = !(edid[20] & 0x80);
-  if (!analogue)
-    output->colourspace = COLOURSPACE_RGB;
-  else
-    switch ((edid[24] >> 3) & 3)
-      {
-      case 0:   output->colourspace = COLOURSPACE_GREY;     break;
-      case 1:   output->colourspace = COLOURSPACE_RGB;      break;
-      case 2:   output->colourspace = COLOURSPACE_NON_RGB;  break;
-      default:  output->colourspace = COLOURSPACE_UNKNOWN;  break;
-      }
-  
-  if (output->colourspace != COLOURSPACE_RGB)
-    return;
-  
-  if (edid[24] & 4)
-    output->colourspace = COLOURSPACE_SRGB;
-  
-  output->red_x   = (edid[25] >> 6) & 3;
-  output->red_y   = (edid[25] >> 4) & 3;
-  output->green_x = (edid[25] >> 2) & 3;
-  output->green_y = (edid[25] >> 0) & 3;
-  output->blue_x  = (edid[26] >> 6) & 3;
-  output->blue_y  = (edid[26] >> 4) & 3;
-  output->white_x = (edid[26] >> 2) & 3;
-  output->white_y = (edid[26] >> 0) & 3;
-  
-  output->red_x   |= ((unsigned)(edid[27])) << 2;
-  output->red_y   |= ((unsigned)(edid[28])) << 2;
-  output->green_x |= ((unsigned)(edid[29])) << 2;
-  output->green_y |= ((unsigned)(edid[30])) << 2;
-  output->blue_x  |= ((unsigned)(edid[31])) << 2;
-  output->blue_y  |= ((unsigned)(edid[32])) << 2;
-  output->white_x |= ((unsigned)(edid[33])) << 2;
-  output->white_y |= ((unsigned)(edid[34])) << 2;
-  
-  if ((output->red_x == output->red_y)   &&
-      (output->red_x == output->green_x) &&
-      (output->red_x == output->green_y) &&
-      (output->red_x == output->blue_x)  &&
-      (output->red_x == output->blue_y)  &&
-      (output->red_x == output->white_x) &&
-      (output->red_x == output->white_y))
-    {
-      if (output->colourspace == COLOURSPACE_SRGB)
-	output->colourspace = COLOURSPACE_SRGB_SANS_GAMUT;
-      else
-	output->colourspace = COLOURSPACE_RGB_SANS_GAMUT;
-    }
-}
-
-
-/**
- * Store all current gamma ramps
- * 
- * @return  Zero on success, -1 on error
- */
-int initialise_gamma_info(void)
-{
-  libgamma_crtc_information_t info;
-  int saved_errno;
-  size_t i;
-  
-  for (i = 0; i < outputs_n; i++)
-    {
-      libgamma_get_crtc_information(&info, crtcs + i,
-				    LIBGAMMA_CRTC_INFO_EDID |
-				    LIBGAMMA_CRTC_INFO_MACRO_RAMP |
-				    LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT |
-				    LIBGAMMA_CRTC_INFO_CONNECTOR_NAME);
-      outputs[i].depth        = info.gamma_depth_error   ? 0 : info.gamma_depth;
-      outputs[i].red_size     = info.gamma_size_error    ? 0 : info.red_gamma_size;
-      outputs[i].green_size   = info.gamma_size_error    ? 0 : info.green_gamma_size;
-      outputs[i].blue_size    = info.gamma_size_error    ? 0 : info.blue_gamma_size;
-      outputs[i].supported    = info.gamma_support_error ? 0 : info.gamma_support;
-      if (info.gamma_support_error == LIBGAMMA_CRTC_INFO_NOT_SUPPORTED)
-	outputs[i].supported = LIBGAMMA_MAYBE;
-      if (outputs[i].depth      == 0 || outputs[i].red_size  == 0 ||
-	  outputs[i].green_size == 0 || outputs[i].blue_size == 0)
-	outputs[i].supported  = 0;
-      parse_edid(outputs + i, info.edid_error ? NULL : info.edid, info.edid_error ? 0 : info.edid_length);
-      outputs[i].name         = get_crtc_name(&info, crtcs + i);
-      saved_errno = errno;
-      outputs[i].name_is_edid = ((info.edid_error == 0) && (info.edid != NULL));
-      outputs[i].crtc         = crtcs + i;
-      libgamma_crtc_information_destroy(&info);
-      outputs[i].ramps_size = outputs[i].red_size + outputs[i].green_size + outputs[i].blue_size;
-      switch (outputs[i].depth)
-	{
-	default:
-	  outputs[i].depth = 64;
-	  /* Fall through */
-	case  8:
-	case 16:
-	case 32:
-	case 64:  outputs[i].ramps_size *= (size_t)(outputs[i].depth / 8);  break;
-	case -2:  outputs[i].ramps_size *= sizeof(double);                  break;
-	case -1:  outputs[i].ramps_size *= sizeof(float);                   break;
-	}
-      errno = saved_errno;
-      if (outputs[i].name == NULL)
-	return -1;
-    }
-  
-  return 0;
-}
-
-
-/**
- * Store all current gamma ramps
- */
-void store_gamma(void)
-{
-  int gerror;
-  size_t i;
-  
-#define LOAD_RAMPS(SUFFIX, MEMBER) \
-  do \
-    { \
-      libgamma_gamma_ramps##SUFFIX##_initialise(&(outputs[i].saved_ramps.MEMBER)); \
-      gerror = libgamma_crtc_get_gamma_ramps##SUFFIX(outputs[i].crtc, &(outputs[i].saved_ramps.MEMBER)); \
-      if (gerror) \
-	{ \
-	  libgamma_perror(argv0, gerror); \
-	  outputs[i].supported = LIBGAMMA_NO; \
-	  libgamma_gamma_ramps##SUFFIX##_destroy(&(outputs[i].saved_ramps.MEMBER)); \
-	  memset(&(outputs[i].saved_ramps.MEMBER), 0, sizeof(outputs[i].saved_ramps.MEMBER)); \
-	} \
-    } \
-  while (0)
-  
-  for (i = 0; i < outputs_n; i++)
-    {
-      if (outputs[i].supported == LIBGAMMA_NO)
-	continue;
-      
-      outputs[i].saved_ramps.u8.red_size   = outputs[i].red_size;
-      outputs[i].saved_ramps.u8.green_size = outputs[i].green_size;
-      outputs[i].saved_ramps.u8.blue_size  = outputs[i].blue_size;
-      
-      switch (outputs[i].depth)
-	{
-	case 64:  LOAD_RAMPS(64, u64);  break;
-	case 32:  LOAD_RAMPS(32, u32);  break;
-	case 16:  LOAD_RAMPS(16, u16);  break;
-	case  8:  LOAD_RAMPS( 8, u8);   break;
-	case -2:  LOAD_RAMPS(d, d);     break;
-	case -1:  LOAD_RAMPS(f, f);     break;
-	default:  /* impossible */      break;
-	}
-    }
-}
-
-
-/**
- * Restore all gamma ramps
- */
-void restore_gamma(void)
-{
-  size_t i;
-  int gerror;
-  
-#define RESTORE_RAMPS(SUFFIX, MEMBER) \
-  do \
-    if (outputs[i].saved_ramps.MEMBER.red != NULL) \
-      { \
-	gerror = libgamma_crtc_set_gamma_ramps##SUFFIX(outputs[i].crtc, outputs[i].saved_ramps.MEMBER); \
-	if (gerror) \
-	    libgamma_perror(argv0, gerror); \
-      } \
-  while (0)
-  
-  for (i = 0; i < outputs_n; i++)
-    {
-      if (outputs[i].supported == LIBGAMMA_NO)
-	continue;
-      if (outputs[i].saved_ramps.u8.red == NULL)
-	continue;
-      
-      switch (outputs[i].depth)
-	{
-	case 64:  RESTORE_RAMPS(64, u64);  break;
-	case 32:  RESTORE_RAMPS(32, u32);  break;
-	case 16:  RESTORE_RAMPS(16, u16);  break;
-	case  8:  RESTORE_RAMPS( 8, u8);   break;
-	case -2:  RESTORE_RAMPS(d, d);     break;
-	case -1:  RESTORE_RAMPS(f, f);     break;
-	default:  /* impossible */         break;
-	}
-    }
-}
-
-
-/**
- * Reapplu all gamma ramps
- */
-void reapply_gamma(void)
-{
-  union gamma_ramps plain;
-  size_t i;
-  
-  /* Reapply gamma ramps */
-  for (i = 0; i < outputs_n; i++)
-    {
-      struct output* output = outputs + i;
-      if (output->table_size > 0)
-	set_gamma(output, output->table_sums + output->table_size - 1);
-      else
-	{
-	  make_plain_ramps(&plain, output);
-	  set_gamma(output, &plain);
-	  libgamma_gamma_ramps8_destroy(&(plain.u8));
-	}
-    }
-}
-