Restructure

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

1 files changed, 0 insertions, 482 deletions

diff --git a/src/output.c b/src/output.c
deleted file mode 100644
index e8913dd..0000000
--- a/src/output.c
+++ /dev/null
@@ -1,482 +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 "output.h"
-#include "util.h"
-
-#include <libclut.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-
-/**
- * The name of the process
- */
-extern char* restrict argv0;
-
-
-
-/**
- * Free all resources allocated to an output.
- * The allocation of `output` itself is not freed,
- * nor is its the libgamma destroyed.
- * 
- * @param  this  The output
- */
-void output_destroy(struct output* restrict this)
-{
-  size_t i;
-  
-  if (this->supported != LIBGAMMA_NO)
-    switch (this->depth)
-      {
-      case 8:
-	libgamma_gamma_ramps8_destroy(&(this->saved_ramps.u8));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_ramps8_destroy(&(this->table_sums[i].u8));
-	break;
-      case 16:
-	libgamma_gamma_ramps16_destroy(&(this->saved_ramps.u16));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_ramps16_destroy(&(this->table_sums[i].u16));
-	break;
-      case 32:
-	libgamma_gamma_ramps32_destroy(&(this->saved_ramps.u32));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_ramps32_destroy(&(this->table_sums[i].u32));
-	break;
-      case 64:
-	libgamma_gamma_ramps64_destroy(&(this->saved_ramps.u64));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_ramps64_destroy(&(this->table_sums[i].u64));
-	break;
-      case -1:
-	libgamma_gamma_rampsf_destroy(&(this->saved_ramps.f));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_rampsf_destroy(&(this->table_sums[i].f));
-	break;
-      case -2:
-	libgamma_gamma_rampsd_destroy(&(this->saved_ramps.d));
-	for (i = 0; i < this->table_size; i++)
-	  libgamma_gamma_rampsd_destroy(&(this->table_sums[i].d));
-	break;
-      default:
-	break; /* impossible */
-      }
-  
-  for (i = 0; i < this->table_size; i++)
-    filter_destroy(this->table_filters + i);
-  
-  free(this->table_filters);
-  free(this->table_sums);
-  free(this->name);
-}
-
-
-
-#if defined(__clang__)
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wcast-align"
-#endif
-
-
-/**
- * Marshal an output
- * 
- * @param   this  The output
- * @param   buf   Output buffer for the marshalled output,
- *                `NULL` just measure how large the buffers
- *                needs to be
- * @return        The number of marshalled byte
- */
-size_t output_marshal(const struct output* restrict this, void* restrict buf)
-{
-  size_t off = 0, i, n;
-  char* bs = buf;
-  
-  if (bs != NULL)
-    *(signed*)(bs + off) = this->depth;
-  off += sizeof(signed);
-  
-  if (bs != NULL)
-    *(size_t*)(bs + off) = this->red_size;
-  off += sizeof(size_t);
-  
-  if (bs != NULL)
-    *(size_t*)(bs + off) = this->green_size;
-  off += sizeof(size_t);
-  
-  if (bs != NULL)
-    *(size_t*)(bs + off) = this->blue_size;
-  off += sizeof(size_t);
-  
-  if (bs != NULL)
-    *(size_t*)(bs + off) = this->ramps_size;
-  off += sizeof(size_t);
-  
-  if (bs != NULL)
-    *(enum libgamma_decision*)(bs + off) = this->supported;
-  off += sizeof(enum libgamma_decision);
-  
-  n = strlen(this->name) + 1;
-  if (bs != NULL)
-    memcpy(bs + off, this->name, n);
-  off += n;
-  
-  off += gamma_ramps_marshal(&(this->saved_ramps), bs ? bs + off : NULL, this->ramps_size);
-  
-  if (bs != NULL)
-    *(size_t*)(bs + off) = this->table_size;
-  off += sizeof(size_t);
-  
-  for (i = 0; i < this->table_size; i++)
-    {
-      off +=      filter_marshal(this->table_filters + i, bs ? bs + off : NULL, this->ramps_size);
-      off += gamma_ramps_marshal(this->table_sums    + i, bs ? bs + off : NULL, this->ramps_size);
-    }
-  
-  return off;
-}
-
-
-/**
- * Unmarshal an output
- * 
- * @param   this  Output for the output
- * @param   buf   Buffer with the marshalled output
- * @return        The number of unmarshalled bytes, 0 on error
- */
-size_t output_unmarshal(struct output* restrict this, const void* restrict buf)
-{
-  size_t off = 0, i, n;
-  const char* bs = buf;
-  
-  this->crtc = NULL;
-  this->name = NULL;
-  
-  this->depth = *(const signed*)(bs + off);
-  off += sizeof(signed);
-  
-  this->red_size = *(const size_t*)(bs + off);
-  off += sizeof(size_t);
-  
-  this->green_size = *(const size_t*)(bs + off);
-  off += sizeof(size_t);
-  
-  this->blue_size = *(const size_t*)(bs + off);
-  off += sizeof(size_t);
-  
-  this->ramps_size = *(const size_t*)(bs + off);
-  off += sizeof(size_t);
-  
-  this->supported = *(const enum libgamma_decision*)(bs + off);
-  off += sizeof(enum libgamma_decision);
-  
-  n = strlen(bs + off) + 1;
-  this->name = memdup(bs + off, n);
-  if (this->name == NULL)
-    return 0;
-  
-  off += n = gamma_ramps_unmarshal(&(this->saved_ramps), bs, this->ramps_size);
-  COPY_RAMP_SIZES(&(this->saved_ramps.u8), this);
-  if (n == 0)
-    return 0;
-  
-  this->table_size = this->table_alloc = *(const size_t*)(bs + off);
-  off += sizeof(size_t);
-  if (this->table_size > 0)
-    {
-      this->table_filters = calloc(this->table_size, sizeof(*(this->table_filters)));
-      if (this->table_filters == NULL)
-	return 0;
-      this->table_sums = calloc(this->table_size, sizeof(*(this->table_sums)));
-      if (this->table_sums == NULL)
-	return 0;
-    }
-  
-  for (i = 0; i < this->table_size; i++)
-    {
-      off += n = filter_unmarshal(this->table_filters + i, bs + off, this->ramps_size);
-      if (n == 0)
-	return 0;
-      COPY_RAMP_SIZES(&(this->table_sums[i].u8), this);
-      off += n = gamma_ramps_unmarshal(this->table_sums + i, bs + off, this->ramps_size);
-      if (n == 0)
-	return 0;
-    }
-  
-  return off;
-}
-
-
-#if defined(__clang__)
-# pragma GCC diagnostic pop
-#endif
-
-
-
-/**
- * Compare to outputs by the names of their respective CRTC:s
- * 
- * @param   a  Return -1 if this one is lower
- * @param   b  Return +1 if this one is higher
- * @return     See description of `a` and `b`,
- *             0 if returned if they are the same
- */
-int output_cmp_by_name(const void* restrict a, const void* restrict b)
-{
-  const char* an = ((const struct output*)a)->name;
-  const char* bn = ((const struct output*)b)->name;
-  return strcmp(an, bn);
-}
-
-
-/**
- * Find an output by its name
- * 
- * @param   key   The name of the output
- * @param   base  The array of outputs
- * @param   n     The number of elements in `base`
- * @return        Output find in `base`, `NULL` if not found
- */
-struct output* output_find_by_name(const char* restrict key, struct output* restrict base, size_t n)
-{
-  struct output k;
-
-#if defined(__GNUC__)
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wcast-qual"
-#endif
-  k.name = (char*)key;
-#if defined(__GNUC__)
-# pragma GCC diagnostic pop
-#endif
-  
-  return bsearch(&k, base, n, sizeof(*base), output_cmp_by_name);
-}
-
-
-/**
- * Remove a filter from an output
- * 
- * @param   out     The output
- * @param   filter  The filter
- * @return          The index of the filter, `out->table_size` if not found
- */
-static ssize_t remove_filter(struct output* restrict out, struct filter* restrict filter)
-{
-  size_t i, n = out->table_size;
-  
-  for (i = 0; i < n; i++)
-    if (!strcmp(filter->class, out->table_filters[i].class))
-      break;
-  
-  if (i == out->table_size)
-    {
-      fprintf(stderr, "%s: ignoring attempt to removing non-existing filter on CRTC %s: %s",
-	      argv0, out->name, filter->class);
-      return (ssize_t)(out->table_size);
-    }
-  
-  filter_destroy(out->table_filters + i);
-  libgamma_gamma_ramps8_destroy(&(out->table_sums[i].u8));
-  
-  n = n - i - 1;
-  memmove(out->table_filters + i, out->table_filters + i + 1, n * sizeof(*(out->table_filters)));
-  memmove(out->table_sums    + i, out->table_sums    + i + 1, n * sizeof(*(out->table_sums)));
-  out->table_size--;
-  
-  return (ssize_t)i;
-}
-
-
-/**
- * Add a filter to an output
- * 
- * @param   out     The output
- * @param   filter  The filter
- * @return          The index given to the filter, -1 on error
- */
-ssize_t add_filter(struct output* restrict out, struct filter* restrict filter)
-{
-  size_t i, n = out->table_size;
-  int r = -1;
-  
-  /* Remove? */
-  if (filter->lifespan == LIFESPAN_REMOVE)
-    return remove_filter(out, filter);
-  
-  /* Update? */
-  for (i = 0; i < n; i++)
-    if (!strcmp(filter->class, out->table_filters[i].class))
-      break;
-  if (i != n)
-    {
-      filter_destroy(out->table_filters + i);
-      out->table_filters[i] = *filter;
-      return (ssize_t)i;
-    }
-  
-  /* Add! */
-  for (i = 0; i < n; i++)
-    if (filter->priority > out->table_filters[i].priority)
-      break;
-  
-  if (n == out->table_alloc)
-    {
-      void* new;
-      
-      new = realloc(out->table_filters, (n + 10) * sizeof(*(out->table_filters)));
-      if (new == NULL)
-	return -1;
-      out->table_filters = new;
-      
-      new = realloc(out->table_sums, (n + 10) * sizeof(*(out->table_sums)));
-      if (new == NULL)
-	return -1;
-      out->table_sums = new;
-      
-      out->table_alloc += 10;
-    }
-  
-  memmove(out->table_filters + i + 1, out->table_filters + i, (n - i) * sizeof(*(out->table_filters)));
-  memmove(out->table_sums    + i + 1, out->table_sums    + i, (n - i) * sizeof(*(out->table_sums)));
-  out->table_size++;
-  
-  COPY_RAMP_SIZES(&(out->table_sums[i].u8), out);
-  switch (out->depth)
-    {
-    case  8:  r = libgamma_gamma_ramps8_initialise(&(out->table_sums[i].u8));    break;
-    case 16:  r = libgamma_gamma_ramps16_initialise(&(out->table_sums[i].u16));  break;
-    case 32:  r = libgamma_gamma_ramps32_initialise(&(out->table_sums[i].u32));  break;
-    case 64:  r = libgamma_gamma_ramps64_initialise(&(out->table_sums[i].u64));  break;
-    case -1:  r = libgamma_gamma_rampsf_initialise(&(out->table_sums[i].f));     break;
-    case -2:  r = libgamma_gamma_rampsd_initialise(&(out->table_sums[i].d));     break;
-    default:
-      abort();
-    }
-  if (r < 0)
-    return -1;
-  
-  out->table_filters[i] = *filter;
-  
-  return (ssize_t)i;
-}
-
-
-/**
- * Recalculate the resulting gamma and
- * update push the new gamma ramps to the CRTC
- * 
- * @param   output         The output
- * @param   first_updated  The index of the first added or removed filter
- * @return                 Zero on success, -1 on error
- */
-int flush_filters(struct output* restrict output, size_t first_updated)
-{
-  union gamma_ramps plain;
-  union gamma_ramps* last;
-  size_t i;
-  int r = 0;
-  
-  if (first_updated == 0)
-    {
-      if (make_plain_ramps(&plain, output) < 0)
-	return -1;
-      last = &plain;
-    }
-  else
-    last = output->table_sums + (first_updated - 1);
-  
-  for (i = first_updated; i < output->table_size; i++)
-    {
-      apply(output->table_sums + i, output->table_filters[i].ramps, output->depth, last);
-      last = output->table_sums + i;
-    }
-  
-  switch (output->depth)
-    {
-    case  8:  r = libgamma_crtc_set_gamma_ramps8(output->crtc,  last->u8);   break;
-    case 16:  r = libgamma_crtc_set_gamma_ramps16(output->crtc, last->u16);  break;
-    case 32:  r = libgamma_crtc_set_gamma_ramps32(output->crtc, last->u32);  break;
-    case 64:  r = libgamma_crtc_set_gamma_ramps64(output->crtc, last->u64);  break;
-    case -1:  r = libgamma_crtc_set_gamma_rampsf(output->crtc,  last->f);    break;
-    case -2:  r = libgamma_crtc_set_gamma_rampsd(output->crtc,  last->d);    break;
-    default:
-      abort();
-    }
-  if (r)
-    libgamma_perror(argv0, r); /* Not fatal */
-  
-  if (first_updated == 0)
-    libgamma_gamma_ramps8_destroy(&(plain.u8));
-  
-  return 0;
-}
-
-
-/**
- * Make identity mapping ramps
- * 
- * @param   ramps   Output parameter for the ramps
- * @param   output  The output for which the ramps shall be configured
- * @return          Zero on success, -1 on error
- */
-int make_plain_ramps(union gamma_ramps* restrict ramps, struct output* restrict output)
-{
-  COPY_RAMP_SIZES(&(ramps->u8), output);
-  switch (output->depth)
-    {
-    case 8:
-      if (libgamma_gamma_ramps8_initialise(&(ramps->u8)))
-	return -1;
-      libclut_start_over(&(ramps->u8), UINT8_MAX, uint8_t, 1, 1, 1);
-      break;
-    case 16:
-      if (libgamma_gamma_ramps16_initialise(&(ramps->u16)))
-	return -1;
-      libclut_start_over(&(ramps->u16), UINT16_MAX, uint16_t, 1, 1, 1);
-      break;
-    case 32:
-      if (libgamma_gamma_ramps32_initialise(&(ramps->u32)))
-	return -1;
-      libclut_start_over(&(ramps->u32), UINT32_MAX, uint32_t, 1, 1, 1);
-      break;
-    case 64:
-      if (libgamma_gamma_ramps64_initialise(&(ramps->u64)))
-	return -1;
-      libclut_start_over(&(ramps->u64), UINT64_MAX, uint64_t, 1, 1, 1);
-      break;
-    case -1:
-      if (libgamma_gamma_rampsf_initialise(&(ramps->f)))
-	return -1;
-      libclut_start_over(&(ramps->f), 1.0f, float, 1, 1, 1);
-      break;
-    case -2:
-      if (libgamma_gamma_rampsd_initialise(&(ramps->d)))
-	return -1;
-      libclut_start_over(&(ramps->d), (double)1, double, 1, 1, 1);
-      break;
-    default:
-      abort();
-    }
-  return 0;
-}
-