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-rw-r--r--Makefile.am8
-rw-r--r--SConstruct7
-rw-r--r--configure.ac2
-rw-r--r--src/randr.c2
-rw-r--r--src/redshift.c56
-rw-r--r--src/vidmode.c109
-rw-r--r--src/vidmode.h26
7 files changed, 194 insertions, 16 deletions
diff --git a/Makefile.am b/Makefile.am
index b77ebfd..551a1bb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,11 @@ redshift_SOURCES = \
src/redshift.c \
src/colorramp.c src/colorramp.h \
src/randr.c src/randr.h \
+ src/vidmode.c src/vidmode.h \
src/solar.c src/solar.h
-AM_CFLAGS = $(XCB_CFLAGS)
-redshift_LDADD = -lm $(XCB_LIBS) $(XCB_CFLAGS)
+AM_CFLAGS = $(X11_CFLAGS) $(XF86VM_CFLAGS) $(XCB_CFLAGS)
+redshift_LDADD = -lm \
+ $(X11_LIBS) $(X11_CFLAGS) \
+ $(XF86VM_LIBS) $(XF86VM_CFLAGS) \
+ $(XCB_LIBS) $(XCB_CFLAGS)
diff --git a/SConstruct b/SConstruct
index 14bfdfa..1da5c65 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1,8 +1,13 @@
-sources = ['redshift.c', 'solar.c', 'colortemp.c']
+sources = ['src/redshift.c',
+ 'src/solar.c',
+ 'src/colorramp.c',
+ 'src/randr.c',
+ 'src/vidmode.c']
env = Environment()
env.ParseConfig('pkg-config --cflags --libs xcb xcb-randr')
+env.ParseConfig('pkg-config --cflags --libs x11 xxf86vm')
env.Program('redshift', sources,
CFLAGS='-std=gnu99 -O2 -Wall',
LINKFLAGS='-lm')
diff --git a/configure.ac b/configure.ac
index fc29cec..7bde467 100644
--- a/configure.ac
+++ b/configure.ac
@@ -11,6 +11,8 @@ AM_INIT_AUTOMAKE([dist-bzip2])
AC_PROG_CC_C99
# Checks for libraries.
+PKG_CHECK_MODULES([X11], [x11])
+PKG_CHECK_MODULES([XF86VM], [xxf86vm])
PKG_CHECK_MODULES([XCB], [xcb xcb-randr])
# Checks for header files.
diff --git a/src/randr.c b/src/randr.c
index 5226b81..a209bc8 100644
--- a/src/randr.c
+++ b/src/randr.c
@@ -115,7 +115,7 @@ randr_set_temperature(int temp, float gamma[3])
free(gamma_size_reply);
if (gamma_ramp_size == 0) {
- fprintf(stderr, "Error: Gamma ramp size too small, %i\n",
+ fprintf(stderr, "Error: Gamma ramp size too small: %i\n",
gamma_ramp_size);
xcb_disconnect(conn);
return -1;
diff --git a/src/redshift.c b/src/redshift.c
index 70bc4fa..653df5a 100644
--- a/src/redshift.c
+++ b/src/redshift.c
@@ -27,6 +27,7 @@
#include "solar.h"
#include "randr.h"
+#include "vidmode.h"
/* Bounds for parameters. */
@@ -60,6 +61,7 @@
" -g R:G:B\tAdditional gamma correction to apply\n" \
" -h\t\tDisplay this help message\n" \
" -l LAT:LON\tYour current location\n" \
+ " -m METHOD\tMethod to use to set color temperature (randr or vidmode)\n" \
" -t DAY:NIGHT\tColor temperature to set at daytime/night\n" \
" -v\t\tVerbose output\n"
@@ -70,13 +72,7 @@
int
main(int argc, char *argv[])
{
- /* Check extensions needed for color temperature adjustment. */
- int r = randr_check_extension();
- if (r < 0) {
- fprintf(stderr, "Unable to set color temperature:"
- " Needed extension is missing.\n");
- exit(EXIT_FAILURE);
- }
+ int r;
/* Init locale for degree symbol. */
char *loc = setlocale(LC_CTYPE, "");
@@ -91,11 +87,12 @@ main(int argc, char *argv[])
int temp_day = DEFAULT_DAY_TEMP;
int temp_night = DEFAULT_NIGHT_TEMP;
float gamma[3] = { DEFAULT_GAMMA, DEFAULT_GAMMA, DEFAULT_GAMMA };
+ int use_randr = 1;
int verbose = 0;
char *s;
int opt;
- while ((opt = getopt(argc, argv, "g:hl:t:v")) != -1) {
+ while ((opt = getopt(argc, argv, "g:hl:m:t:v")) != -1) {
switch (opt) {
case 'g':
s = strchr(optarg, ':');
@@ -133,6 +130,16 @@ main(int argc, char *argv[])
lat = atof(optarg);
lon = atof(s);
break;
+ case 'm':
+ if (strcmp(optarg, "randr") == 0) {
+ use_randr = 1;
+ } else if (strcmp(optarg, "vidmode") == 0) {
+ use_randr = 0;
+ } else {
+ fprintf(stderr, "Unknown method `%s'.\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ break;
case 't':
s = strchr(optarg, ':');
if (s == NULL) {
@@ -236,10 +243,35 @@ main(int argc, char *argv[])
}
/* Set color temperature */
- r = randr_set_temperature(temp, gamma);
- if (r < 0) {
- fprintf(stderr, "Unable to set color temperature.\n");
- exit(EXIT_FAILURE);
+ if (use_randr) {
+ /* Check RANDR extension. */
+ int r = randr_check_extension();
+ if (r < 0) {
+ use_randr = 0;
+ } else {
+ r = randr_set_temperature(temp, gamma);
+ if (r < 0) {
+ fprintf(stderr, "Unable to set color temperature with RANDR,"
+ " trying VidMode...\n");
+ use_randr = 0;
+ }
+ }
+ }
+
+ if (!use_randr) {
+ /* Check VidMode extension */
+ r = vidmode_check_extension();
+ if (r < 0) {
+ fprintf(stderr, "Missing needed extension to set gamma ramp"
+ "(RANDR or VidMode).\n");
+ exit(EXIT_FAILURE);
+ }
+
+ r = vidmode_set_temperature(temp, gamma);
+ if (r < 0) {
+ fprintf(stderr, "Unable to set color temperature with VidMode.\n");
+ exit(EXIT_FAILURE);
+ }
}
return EXIT_SUCCESS;
diff --git a/src/vidmode.c b/src/vidmode.c
new file mode 100644
index 0000000..7cc0d02
--- /dev/null
+++ b/src/vidmode.c
@@ -0,0 +1,109 @@
+/* vidmode.c -- X VidMode gamma adjustment source
+ This file is part of Redshift.
+
+ Redshift 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.
+
+ Redshift 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 Redshift. If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright (c) 2009 Jon Lund Steffensen <jonlst@gmail.com>
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include <X11/Xlib.h>
+#include <X11/extensions/xf86vmode.h>
+
+#include "colorramp.h"
+
+
+int
+vidmode_check_extension()
+{
+ int r;
+
+ /* Open display */
+ Display *dpy = XOpenDisplay(NULL);
+ if (dpy == NULL) {
+ fprintf(stderr, "XOpenDisplay failed.\n");
+ return -1;
+ }
+
+ /* Query extension version */
+ int major, minor;
+ r = XF86VidModeQueryVersion(dpy, &major, &minor);
+ if (!r) {
+ fprintf(stderr, "XF86VidModeQueryVersion failed.\n");
+ return -1;
+ }
+
+ /* TODO Check major/minor */
+
+ /* Close display */
+ XCloseDisplay(dpy);
+
+ return 0;
+}
+
+int
+vidmode_set_temperature(int temp, float gamma[3])
+{
+ int r;
+
+ /* Open display */
+ Display *dpy = XOpenDisplay(NULL);
+ if (dpy == NULL) {
+ fprintf(stderr, "XOpenDisplay failed.\n");
+ return -1;
+ }
+
+ /* Request size of gamma ramps for screen 0 */
+ int gamma_ramp_size;
+ r = XF86VidModeGetGammaRampSize(dpy, 0, &gamma_ramp_size);
+ if (!r) {
+ fprintf(stderr, "XF86VidModeGetGammaRampSize failed.\n");
+ XCloseDisplay(dpy);
+ return -1;
+ }
+
+ if (gamma_ramp_size == 0) {
+ fprintf(stderr, "Error: Gamma ramp size too small: %i\n",
+ gamma_ramp_size);
+ XCloseDisplay(dpy);
+ return -1;
+ }
+
+ /* Create new gamma ramps */
+ uint16_t *gamma_ramps = malloc(3*gamma_ramp_size*sizeof(uint16_t));
+ if (gamma_ramps == NULL) abort();
+
+ uint16_t *gamma_r = &gamma_ramps[0*gamma_ramp_size];
+ uint16_t *gamma_g = &gamma_ramps[1*gamma_ramp_size];
+ uint16_t *gamma_b = &gamma_ramps[2*gamma_ramp_size];
+
+ colorramp_fill(gamma_r, gamma_g, gamma_b, gamma_ramp_size,
+ temp, gamma);
+
+ /* Set new gamma ramps */
+ r = XF86VidModeSetGammaRamp(dpy, 0, gamma_ramp_size, gamma_r, gamma_g, gamma_b);
+ if (!r) {
+ fprintf(stderr, "XF86VidModeSetGammaRamp failed.\n");
+ XCloseDisplay(dpy);
+ return -1;
+ }
+
+ /* Close display */
+ XCloseDisplay(dpy);
+
+ return 0;
+}
diff --git a/src/vidmode.h b/src/vidmode.h
new file mode 100644
index 0000000..893fcc8
--- /dev/null
+++ b/src/vidmode.h
@@ -0,0 +1,26 @@
+/* vidmode.h -- X VidMode gamma adjustment header
+ This file is part of Redshift.
+
+ Redshift 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.
+
+ Redshift 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 Redshift. If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright (c) 2009 Jon Lund Steffensen <jonlst@gmail.com>
+*/
+
+#ifndef _REDSHIFT_VIDMODE_H
+#define _REDSHIFT_VIDMODE_H
+
+int vidmode_check_extension();
+int vidmode_set_temperature(int temp, float gamma[3]);
+
+#endif /* ! _REDSHIFT_VIDMODE_H */