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-rw-r--r--src/servers/gamma.c398
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));
- }
- }
-}
-
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