diff options
Diffstat (limited to 'src/blueshift_randr.c')
| -rw-r--r-- | src/blueshift_randr.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/src/blueshift_randr.c b/src/blueshift_randr.c index 1c78d72..f2027df 100644 --- a/src/blueshift_randr.c +++ b/src/blueshift_randr.c @@ -229,9 +229,12 @@ int blueshift_randr_open(void) * 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 */ -int blueshift_randr_apply(uint64_t use_crtcs) +int blueshift_randr_apply(uint64_t use_crtcs, uint16_t* r_curve, uint16_t* g_curve, uint16_t* b_curve) { blueshift_randr_crtc_t* crtcs_ = crtcs; @@ -253,9 +256,9 @@ int blueshift_randr_apply(uint64_t use_crtcs) for (i = 0; i < crtcs_->curve_size; i++) { - *(crtcs_->r_curve + i) = (1 << 16) - 1 - *(crtcs_->r_curve + i); - *(crtcs_->g_curve + i) = (1 << 16) - 1 - *(crtcs_->g_curve + i); - *(crtcs_->b_curve + i) = (1 << 16) - 1 - *(crtcs_->b_curve + i); + *(crtcs_->r_curve + i) = *(r_curve + i); + *(crtcs_->g_curve + i) = *(g_curve + i); + *(crtcs_->b_curve + i) = *(b_curve + i); } @@ -308,13 +311,31 @@ void blueshift_randr_close(void) int main(int argc, char** argv) { + uint16_t* r_curve = malloc(3 * 256 * sizeof(uint16_t)); + uint16_t* g_curve = r_curve + 256; + uint16_t* b_curve = g_curve + 256; + long i; + (void) argc; (void) argv; - if (blueshift_randr_open() || blueshift_randr_apply(~0)) - return 1; + if (blueshift_randr_open()) + { + free(r_curve); + return 1; + } + + for (i = 0; i < 256; i++) + r_curve[i] = g_curve[i] = b_curve[i] = (int)((float)i / 255.f * (float)((1 << 16) - 1) + 0.f); + + if (blueshift_randr_apply(~0, r_curve, g_curve, b_curve)) + { + free(r_curve); + return 1; + } blueshift_randr_close(); + free(r_curve); return 0; } |