diff options
| author | Ben Skeggs | 2011-10-17 12:23:41 +1000 |
|---|---|---|
| committer | Ben Skeggs | 2011-12-21 19:01:21 +1000 |
| commit | de69185573586302ada2e59ba41835df36986277 (patch) | |
| tree | 4c80ab38e936aa292985ac67498fe99648ab6628 /drivers/gpu/drm/nouveau/nv50_crtc.c | |
| parent | 488ff207f98650c6a1f077e432b541f3cdcb7ab8 (diff) | |
drm/nouveau: improve dithering properties, and implement proper auto mode
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_crtc.c | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c index 70d7fbb43cf6..dc30dc1a63b2 100644 --- a/drivers/gpu/drm/nouveau/nv50_crtc.c +++ b/drivers/gpu/drm/nouveau/nv50_crtc.c @@ -134,33 +134,40 @@ nv50_crtc_blank(struct nouveau_crtc *nv_crtc, bool blanked) static int nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool update) { - struct drm_device *dev = nv_crtc->base.dev; - struct nouveau_channel *evo = nv50_display(dev)->master; - struct nouveau_connector *nv_connector = - nouveau_crtc_connector_get(nv_crtc); - int ret; - - NV_DEBUG_KMS(dev, "\n"); + struct nouveau_channel *evo = nv50_display(nv_crtc->base.dev)->master; + struct nouveau_connector *nv_connector; + struct drm_connector *connector; + int head = nv_crtc->index, ret; + u32 mode = 0x00; - ret = RING_SPACE(evo, 2 + (update ? 2 : 0)); - if (ret) { - NV_ERROR(dev, "no space while setting dither\n"); - return ret; + nv_connector = nouveau_crtc_connector_get(nv_crtc); + connector = &nv_connector->base; + if (nv_connector->dithering_mode == DITHERING_MODE_AUTO) { + if (nv_crtc->base.fb->depth > connector->display_info.bpc * 3) + mode = DITHERING_MODE_DYNAMIC2X2; + } else { + mode = nv_connector->dithering_mode; } - BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, DITHER_CTRL), 1); - if (nv_connector->use_dithering) - OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_ON); - else - OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_OFF); + if (nv_connector->dithering_depth == DITHERING_DEPTH_AUTO) { + if (connector->display_info.bpc >= 8) + mode |= DITHERING_DEPTH_8BPC; + } else { + mode |= nv_connector->dithering_depth; + } - if (update) { - BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1); - OUT_RING(evo, 0); - FIRE_RING(evo); + ret = RING_SPACE(evo, 2 + (update ? 2 : 0)); + if (ret == 0) { + BEGIN_RING(evo, 0, NV50_EVO_CRTC(head, DITHER_CTRL), 1); + OUT_RING (evo, mode); + if (update) { + BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1); + OUT_RING (evo, 0); + FIRE_RING (evo); + } } - return 0; + return ret; } struct nouveau_connector * |