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backend/drm: apply gamma LUT on page-flip

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This commit is contained in:
Simon Ser 2020-05-07 17:50:40 +02:00
parent 69b2279092
commit 70883fd10b
6 changed files with 87 additions and 70 deletions
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27
backend/drm/legacy.c
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@ -30,6 +30,12 @@ static bool legacy_crtc_pageflip(struct wlr_drm_backend *drm,
}
}
if (crtc->pending & WLR_DRM_CRTC_GAMMA_LUT) {
if (!drm_legacy_crtc_set_gamma(drm, crtc)) {
return false;
}
}
if (cursor != NULL && cursor->cursor_enabled && drmModeMoveCursor(drm->fd,
crtc->id, conn->cursor_x, conn->cursor_y) != 0) {
wlr_log_errno(WLR_ERROR, "%s: failed to move cursor", conn->output.name);
@ -83,10 +89,22 @@ bool legacy_crtc_set_cursor(struct wlr_drm_backend *drm,
return true;
}
static bool legacy_crtc_set_gamma(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, size_t size,
uint16_t *r, uint16_t *g, uint16_t *b) {
return !drmModeCrtcSetGamma(drm->fd, crtc->id, (uint32_t)size, r, g, b);
bool drm_legacy_crtc_set_gamma(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc) {
uint32_t size = crtc->gamma_table_size;
uint16_t *r = NULL, *g = NULL, *b = NULL;
if (size > 0) {
r = crtc->gamma_table;
g = crtc->gamma_table + crtc->gamma_table_size;
b = crtc->gamma_table + 2 * crtc->gamma_table_size;
}
if (drmModeCrtcSetGamma(drm->fd, crtc->id, size, r, g, b) != 0) {
wlr_log_errno(WLR_ERROR, "Failed to set gamma LUT on CRTC %"PRIu32,
crtc->id);
return false;
}
return true;
}
static size_t legacy_crtc_get_gamma_size(struct wlr_drm_backend *drm,
@ -98,6 +116,5 @@ const struct wlr_drm_interface legacy_iface = {
.conn_enable = legacy_conn_enable,
.crtc_pageflip = legacy_crtc_pageflip,
.crtc_set_cursor = legacy_crtc_set_cursor,
.crtc_set_gamma = legacy_crtc_set_gamma,
.crtc_get_gamma_size = legacy_crtc_get_gamma_size,
};