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-rw-r--r--src/blueshift_randr_c.c301
1 files changed, 0 insertions, 301 deletions
diff --git a/src/blueshift_randr_c.c b/src/blueshift_randr_c.c
deleted file mode 100644
index 19650b7..0000000
--- a/src/blueshift_randr_c.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/**
- * Copyright © 2014 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/>.
- */
-#include "blueshift_randr_c.h"
-
-
-/**
- * Connection to the X server
- */
-static xcb_connection_t* connection;
-
-/**
- * Used to store errors in
- */
-static xcb_generic_error_t* error;
-
-/**
- * Screen resources
- */
-static xcb_randr_get_screen_resources_current_reply_t* res_reply;
-
-/**
- * The first CRTC
- */
-static blueshift_randr_crtc_t* crtcs;
-
-/**
- * The CRTC after the last CRTC
- */
-static blueshift_randr_crtc_t* crtcs_end;
-
-
-
-/**
- * Start stage of colour curve control
- *
- * @param use_screen The screen to use
- * @param display The display to use, `NULL` for the current one
- * @return Zero on success
- */
-int blueshift_randr_open(int use_screen, char* display)
-{
- blueshift_randr_crtc_t* crtcs_;
-
- xcb_randr_query_version_cookie_t version_cookie;
- xcb_randr_query_version_reply_t* randr_version;
- xcb_screen_iterator_t iter;
- xcb_screen_t* screen;
- xcb_randr_get_screen_resources_current_cookie_t res_cookie;
- unsigned int crtc_count;
- xcb_randr_get_crtc_gamma_size_cookie_t gamma_size_cookie;
- xcb_randr_get_crtc_gamma_size_reply_t* gamma_size_reply;
- xcb_randr_get_crtc_gamma_cookie_t gamma_get_cookie;
- xcb_randr_get_crtc_gamma_reply_t* gamma_get_reply;
- int iter_i;
-
-
- /* Get X connection */
-
- connection = xcb_connect(display, NULL);
-
-
- /* Check RandR protocol version */
-
- version_cookie = xcb_randr_query_version(connection, RANDR_VERSION_MAJOR, RANDR_VERSION_MINOR);
- randr_version = xcb_randr_query_version_reply(connection, version_cookie, &error);
-
- if (error || (randr_version == NULL))
- {
- fprintf(stderr, "RandR version query returned %i\n", error ? error->error_code : -1);
- xcb_disconnect(connection);
- return 1;
- }
-
- if (randr_version->major_version != RANDR_VERSION_MAJOR || randr_version->minor_version < RANDR_VERSION_MINOR)
- {
- fprintf(stderr, "Unsupported RandR version, got %u.%u, expected %u.%u\n",
- randr_version->major_version, randr_version->minor_version,
- RANDR_VERSION_MAJOR, RANDR_VERSION_MINOR);
- free(randr_version);
- xcb_disconnect(connection);
- return 1;
- }
-
- free(randr_version);
-
-
- /* Get X resources */
-
- iter = xcb_setup_roots_iterator(xcb_get_setup(connection));
- for (iter_i = 0; iter_i < use_screen; iter_i++)
- xcb_screen_next(&iter);
- screen = iter.data;
-
- res_cookie = xcb_randr_get_screen_resources_current(connection, screen->root);
- res_reply = xcb_randr_get_screen_resources_current_reply(connection, res_cookie, &error);
-
- if (error)
- {
- fprintf(stderr, "RandR screen resource query returned %i\n", error->error_code);
- xcb_disconnect(connection);
- return 1;
- }
-
-
- /* Get CRTC:s */
-
- crtc_count = res_reply->num_crtcs;
- crtcs = malloc(crtc_count * sizeof(blueshift_randr_crtc_t));
- crtcs->crtc = xcb_randr_get_screen_resources_current_crtcs(res_reply);
- crtcs_end = crtcs + crtc_count;
-
-
- /* Prepare CRTC:s */
-
- for (crtcs_ = crtcs; crtcs_ != crtcs_end; crtcs_++)
- {
- /* Set CRTC */
-
- if (crtcs_ != crtcs)
- crtcs_->crtc = (crtcs_ - 1)->crtc + 1;
-
-
- /* Get curve X-axis size */
-
- gamma_size_cookie = xcb_randr_get_crtc_gamma_size(connection, *(crtcs_->crtc));
- gamma_size_reply = xcb_randr_get_crtc_gamma_size_reply(connection, gamma_size_cookie, &error);
-
- if (error)
- {
- fprintf(stderr, "RandR CRTC gamma size query returned %i\n", error->error_code);
- xcb_disconnect(connection);
- return 1;
- }
-
- crtcs_->curve_size = gamma_size_reply->size;
- free(gamma_size_reply);
-
-
- /* Acquire curve control */
-
- gamma_get_cookie = xcb_randr_get_crtc_gamma(connection, *(crtcs_->crtc));
- gamma_get_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_get_cookie, &error);
-
- if (error)
- {
- fprintf(stderr, "RandR CRTC gamma query returned %i\n", error->error_code);
- xcb_disconnect(connection);
- return 1;
- }
-
- free(gamma_get_reply);
- }
-
- return 0;
-}
-
-
-/**
- * Gets the current colour curves
- *
- * @param use_crtc The CRTC to use
- * @return {the size of the red curve, *the red curve,
- * the size of the green curve, *the green curve,
- * the size of the blue curve, *the blue curve},
- * needs to be free:d. `NULL` on error.
- */
-uint16_t* blueshift_randr_read(int use_crtc)
-{
- xcb_randr_get_crtc_gamma_cookie_t gamma_get_cookie;
- xcb_randr_get_crtc_gamma_reply_t* gamma_get_reply;
- uint16_t* r_gamma, * R_gamma;
- uint16_t* g_gamma, * G_gamma;
- uint16_t* b_gamma, * B_gamma;
- int i, R_size, G_size, B_size;
-
- /* Read curves */
-
- gamma_get_cookie = xcb_randr_get_crtc_gamma(connection, *((crtcs + use_crtc)->crtc));
- gamma_get_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_get_cookie, &error);
-
- if (error)
- {
- fprintf(stderr, "RandR CRTC gamma query returned %i\n", error->error_code);
- xcb_disconnect(connection);
- return NULL;
- }
-
- R_size = xcb_randr_get_crtc_gamma_red_length(gamma_get_reply);
- G_size = xcb_randr_get_crtc_gamma_green_length(gamma_get_reply);
- B_size = xcb_randr_get_crtc_gamma_blue_length(gamma_get_reply);
-
- if ((R_size < 2) || (G_size < 2) || (B_size < 2))
- {
- fprintf(stderr, "RandR CRTC gamma query returned impossibly small ramps\n");
- xcb_disconnect(connection);
- return NULL;
- }
-
- if ((R_size | G_size | B_size) > UINT16_MAX)
- {
- fprintf(stderr, "RandR CRTC gamma query returned unexpectedly large ramps\n");
- xcb_disconnect(connection);
- return NULL;
- }
-
- R_gamma = xcb_randr_get_crtc_gamma_red(gamma_get_reply);
- G_gamma = xcb_randr_get_crtc_gamma_green(gamma_get_reply);
- B_gamma = xcb_randr_get_crtc_gamma_blue(gamma_get_reply);
-
- r_gamma = malloc((3 + (size_t)R_size + (size_t)G_size + (size_t)B_size) * sizeof(uint16_t));
- g_gamma = r_gamma + R_size + 1;
- b_gamma = g_gamma + G_size + 1;
- if (r_gamma == NULL)
- {
- fprintf(stderr, "Out of memory\n");
- free(gamma_get_reply);
- xcb_disconnect(connection);
- return NULL;
- }
-
- *r_gamma++ = (uint16_t)R_size;
- *g_gamma++ = (uint16_t)G_size;
- *b_gamma++ = (uint16_t)B_size;
-
- for (i = 0; i < R_size; i++) *(r_gamma + i) = *(R_gamma + i);
- for (i = 0; i < G_size; i++) *(g_gamma + i) = *(G_gamma + i);
- for (i = 0; i < B_size; i++) *(b_gamma + i) = *(B_gamma + i);
-
- free(gamma_get_reply);
- return r_gamma - 1;
-}
-
-
-/**
- * Apply stage of colour curve control
- *
- * @param use_crtc The CRTC to use, -1 for all
- * @param r_curve The red colour curve
- * @param g_curve The green colour curve
- * @param b_curve The blue colour curve
- * @return Zero on success
- */
-int blueshift_randr_apply(int use_crtc, uint16_t* r_curve, uint16_t* g_curve, uint16_t* b_curve)
-{
- /* Select first CRTC */
- blueshift_randr_crtc_t* crtc_start = crtcs + (use_crtc < 0 ? 0 : use_crtc);
-
- /* Select exclusive last CRTC */
- blueshift_randr_crtc_t* crtc_end = use_crtc < 0 ? crtcs_end : (crtc_start + 1);
-
- blueshift_randr_crtc_t* crtc;
- xcb_void_cookie_t gamma_set_cookie;
-
-
- /* Apply for all selected CRTC:s */
-
- for (crtc = crtc_start; crtc != crtc_end; crtc++)
- {
- /* Apply curves */
-
- gamma_set_cookie = xcb_randr_set_crtc_gamma_checked(connection, *(crtc->crtc), crtc->curve_size,
- r_curve, g_curve, b_curve);
- error = xcb_request_check(connection, gamma_set_cookie);
-
- if (error)
- {
- fprintf(stderr, "RandR CRTC control returned %i\n", error->error_code);
- return 1;
- }
- }
-
- return 0;
-}
-
-
-/**
- * Resource freeing stage of colour curve control
- */
-void blueshift_randr_close(void)
-{
- /* Free remaining resources */
-
- free(crtcs);
- free(res_reply);
- xcb_disconnect(connection);
-}
-
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