diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2011-10-25 16:29:13 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 19:01:23 +1000 |
| commit | 1cb9469ee7bcdc0f80a3b12a1036352039ada72f (patch) | |
| tree | 6750a191fff74d79379ffaf51dc0bbe177bf2904 /drivers/gpu/drm/nouveau/nv50_crtc.c | |
| parent | 616a5f57b634718e87c260820166b11bdcf6a482 (diff) | |
drm/nv50/disp: fix scaling of doublescan modes
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 | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c index 998ac719541..8f6c2ace3ad 100644 --- a/drivers/gpu/drm/nouveau/nv50_crtc.c +++ b/drivers/gpu/drm/nouveau/nv50_crtc.c @@ -195,7 +195,8 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update) struct drm_crtc *crtc = &nv_crtc->base; struct drm_device *dev = crtc->dev; struct nouveau_channel *evo = nv50_display(dev)->master; - struct drm_display_mode *mode = &crtc->mode; + struct drm_display_mode *umode = &crtc->mode; + struct drm_display_mode *omode; int scaling_mode, ret; u32 ctrl = 0, oX, oY; @@ -212,13 +213,15 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update) /* start off at the resolution we programmed the crtc for, this * effectively handles NONE/FULL scaling */ - if (scaling_mode != DRM_MODE_SCALE_NONE) { - oX = nv_connector->native_mode->hdisplay; - oY = nv_connector->native_mode->vdisplay; - } else { - oX = mode->hdisplay; - oY = mode->vdisplay; - } + if (scaling_mode != DRM_MODE_SCALE_NONE) + omode = nv_connector->native_mode; + else + omode = umode; + + oX = omode->hdisplay; + oY = omode->vdisplay; + if (omode->flags & DRM_MODE_FLAG_DBLSCAN) + oY *= 2; /* add overscan compensation if necessary, will keep the aspect * ratio the same as the backend mode unless overridden by the @@ -248,15 +251,15 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update) */ switch (scaling_mode) { case DRM_MODE_SCALE_CENTER: - oX = min((u32)mode->hdisplay, oX); - oY = min((u32)mode->vdisplay, oY); + oX = min((u32)umode->hdisplay, oX); + oY = min((u32)umode->vdisplay, oY); /* fall-through */ case DRM_MODE_SCALE_ASPECT: if (oY < oX) { - u32 aspect = (mode->hdisplay << 19) / mode->vdisplay; + u32 aspect = (umode->hdisplay << 19) / umode->vdisplay; oX = ((oY * aspect) + (aspect / 2)) >> 19; } else { - u32 aspect = (mode->vdisplay << 19) / mode->hdisplay; + u32 aspect = (umode->vdisplay << 19) / umode->hdisplay; oY = ((oX * aspect) + (aspect / 2)) >> 19; } break; @@ -264,9 +267,9 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update) break; } - if (mode->hdisplay != oX || mode->vdisplay != oY || - mode->flags & DRM_MODE_FLAG_INTERLACE || - mode->flags & DRM_MODE_FLAG_DBLSCAN) + if (umode->hdisplay != oX || umode->vdisplay != oY || + umode->flags & DRM_MODE_FLAG_INTERLACE || + umode->flags & DRM_MODE_FLAG_DBLSCAN) ctrl |= NV50_EVO_CRTC_SCALE_CTRL_ACTIVE; ret = RING_SPACE(evo, 5); |