diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/blueshift_randr.c | 142 |
1 files changed, 100 insertions, 42 deletions
diff --git a/src/blueshift_randr.c b/src/blueshift_randr.c index 891c8b6..0f5c62c 100644 --- a/src/blueshift_randr.c +++ b/src/blueshift_randr.c @@ -35,32 +35,42 @@ -int main(int argc __attribute__((unused)), char** argv __attribute__((unused))) +/** + * Data structure for CRTC caches + */ +typedef struct blueshift_randr_crtc { - uint64_t use_crtcs = ~0; - - xcb_connection_t* connection; - xcb_generic_error_t* error; - xcb_randr_query_version_cookie_t version_cookie; - xcb_randr_query_version_reply_t* randr_version; - const xcb_setup_t* setup; - xcb_screen_iterator_t iter; - xcb_screen_t* screen; - xcb_randr_get_screen_resources_current_cookie_t res_cookie; - xcb_randr_get_screen_resources_current_reply_t* res_reply; - unsigned int crtc_count; - xcb_randr_crtc_t* crtcs; - xcb_randr_crtc_t* crtcs_end; - xcb_randr_get_crtc_gamma_size_cookie_t gamma_size_cookie; - xcb_randr_get_crtc_gamma_size_reply_t* gamma_size_reply; unsigned int curve_size; - xcb_randr_get_crtc_gamma_cookie_t gamma_get_cookie; xcb_randr_get_crtc_gamma_reply_t* gamma_get_reply; uint16_t* r_gamma; uint16_t* g_gamma; uint16_t* b_gamma; - unsigned int i; - xcb_void_cookie_t gamma_set_cookie; + xcb_randr_crtc_t* crtc; +} blueshift_randr_crtc_t; + + + +static xcb_connection_t* connection; +static xcb_randr_query_version_cookie_t version_cookie; +static xcb_randr_query_version_reply_t* randr_version; +static xcb_generic_error_t* error; +static const xcb_setup_t* setup; +static xcb_screen_iterator_t iter; +static xcb_screen_t* screen; +static xcb_randr_get_screen_resources_current_cookie_t res_cookie; +static xcb_randr_get_screen_resources_current_reply_t* res_reply; +static unsigned int crtc_count; +static blueshift_randr_crtc_t* crtcs; +static blueshift_randr_crtc_t* crtcs_end; + + + +int blueshift_randr_open(void) +{ + blueshift_randr_crtc_t* crtcs_; + 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; /* Get X connection */ @@ -113,23 +123,24 @@ int main(int argc __attribute__((unused)), char** argv __attribute__((unused))) /* Get CRTC:s */ crtc_count = res_reply->num_crtcs; - crtcs = xcb_randr_get_screen_resources_current_crtcs(res_reply); + 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; - /* Use CRTC:s */ + /* Prepare CRTC:s */ - while (crtcs != crtcs_end) + for (crtcs_ = crtcs; crtcs_ != crtcs_end; crtcs_++) { - /* Check whether we should use the CRTC */ - - if ((use_crtcs & 1) == 0) - goto next_crtc; + /* 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); + 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) @@ -139,14 +150,14 @@ int main(int argc __attribute__((unused)), char** argv __attribute__((unused))) return 1; } - curve_size = gamma_size_reply->size; + crtcs_->curve_size = gamma_size_reply->size; free(gamma_size_reply); /* Acquire curve control */ - gamma_get_cookie = xcb_randr_get_crtc_gamma(connection, *crtcs); - gamma_get_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_get_cookie, &error); + gamma_get_cookie = xcb_randr_get_crtc_gamma(connection, *(crtcs_->crtc)); + crtcs_->gamma_get_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_get_cookie, &error); if (error) { @@ -155,24 +166,48 @@ int main(int argc __attribute__((unused)), char** argv __attribute__((unused))) return 1; } - 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); + crtcs_->r_gamma = xcb_randr_get_crtc_gamma_red(crtcs_->gamma_get_reply); + crtcs_->g_gamma = xcb_randr_get_crtc_gamma_green(crtcs_->gamma_get_reply); + crtcs_->b_gamma = xcb_randr_get_crtc_gamma_blue(crtcs_->gamma_get_reply); + } + + + return 0; +} + + +int blueshift_randr_apply(uint64_t use_crtcs) +{ + blueshift_randr_crtc_t* crtcs_ = crtcs; + + unsigned int i; + xcb_void_cookie_t gamma_set_cookie; + + + /* Use CRTC:s */ + + while (crtcs_ != crtcs_end) + { + /* Check whether we should use the CRTC */ + + if ((use_crtcs & 1) == 0) + goto next_crtc; /* Set curves */ - for (i = 0; i < curve_size; i++) + for (i = 0; i < crtcs_->curve_size; i++) { - *(r_gamma + i) = (1 << 16) - 1 - *(r_gamma + i); - *(g_gamma + i) = (1 << 16) - 1 - *(g_gamma + i); - *(b_gamma + i) = (1 << 16) - 1 - *(b_gamma + i); + *(crtcs_->r_gamma + i) = (1 << 16) - 1 - *(crtcs_->r_gamma + i); + *(crtcs_->g_gamma + i) = (1 << 16) - 1 - *(crtcs_->g_gamma + i); + *(crtcs_->b_gamma + i) = (1 << 16) - 1 - *(crtcs_->b_gamma + i); } /* Apply curves */ - gamma_set_cookie = xcb_randr_set_crtc_gamma_checked(connection, *crtcs, curve_size, r_gamma, g_gamma, b_gamma); + gamma_set_cookie = xcb_randr_set_crtc_gamma_checked(connection, *(crtcs_->crtc), crtcs_->curve_size, + crtcs_->r_gamma, crtcs_->g_gamma, crtcs_->b_gamma); error = xcb_request_check(connection, gamma_set_cookie); if (error) @@ -181,24 +216,47 @@ int main(int argc __attribute__((unused)), char** argv __attribute__((unused))) return 1; } - free(gamma_get_reply); - /* Next CRTC */ next_crtc: - crtcs++; + crtcs_++; use_crtcs >>= 1; } + return 0; +} + + +void blueshift_randr_close(void) +{ + blueshift_randr_crtc_t* crtcs_; + + + /* Free CRTC resources */ + + for (crtcs_ = crtcs; crtcs_ != crtcs_end; crtcs_++) + free(crtcs_->gamma_get_reply); /* Free remaining resources */ + free(crtcs); free(res_reply); xcb_disconnect(connection); +} + + + +int main(int argc, char** argv) +{ + (void) argc; + (void) argv; + if (blueshift_randr_open() || blueshift_randr_apply(~0)) + return 1; + blueshift_randr_close(); return 0; } |