diff options
Diffstat (limited to 'src/blueshift_randr_c.c')
| -rw-r--r-- | src/blueshift_randr_c.c | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/src/blueshift_randr_c.c b/src/blueshift_randr_c.c index 0c99533..23035a3 100644 --- a/src/blueshift_randr_c.c +++ b/src/blueshift_randr_c.c @@ -232,32 +232,31 @@ uint16_t* blueshift_randr_read(int use_crtc) /** * Apply stage of colour curve control * - * @param use_crtcs Mask of CRTC:s to use - * @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 + * @param use_crtc The CRTC to use, -1 of 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(uint64_t use_crtcs, uint16_t* r_curve, uint16_t* g_curve, uint16_t* b_curve) +int blueshift_randr_apply(int use_crtc, uint16_t* r_curve, uint16_t* g_curve, uint16_t* b_curve) { - blueshift_randr_crtc_t* crtcs_ = crtcs; + /* 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; - /* Use CRTC:s */ + /* Apply for all selected CRTC:s */ - while (crtcs_ != crtcs_end) + for (crtc = crtc_start; crtc != crtc_end; crtc++) { - /* Check whether we should use the CRTC */ - - if ((use_crtcs & 1) == 0) - goto next_crtc; - - /* Apply curves */ - gamma_set_cookie = xcb_randr_set_crtc_gamma_checked(connection, *(crtcs_->crtc), crtcs_->curve_size, + 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); @@ -266,13 +265,6 @@ int blueshift_randr_apply(uint64_t use_crtcs, uint16_t* r_curve, uint16_t* g_cur fprintf(stderr, "RandR CRTC control returned %i\n", error->error_code); return 1; } - - - /* Next CRTC */ - - next_crtc: - crtcs_++; - use_crtcs >>= 1; } return 0; |