diff options
| author | Ben Skeggs | 2011-07-07 16:01:57 +1000 |
|---|---|---|
| committer | Ben Skeggs | 2011-09-20 16:07:15 +1000 |
| commit | f3fdc52dd73a083dcb80f95e5c6ce8a33277b102 (patch) | |
| tree | c87d36f47716a113bb351f541e0916a8da253a3e /drivers | |
| parent | a46232ee09064351246c6f7134c81790ef737874 (diff) | |
drm/nvd0/disp: scaling
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvd0_display.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c index 4fadea47b3b4..d85b25939653 100644 --- a/drivers/gpu/drm/nouveau/nvd0_display.c +++ b/drivers/gpu/drm/nouveau/nvd0_display.c @@ -150,16 +150,43 @@ nvd0_crtc_set_scale(struct nouveau_crtc *nv_crtc, int type, bool update) { struct drm_display_mode *mode = &nv_crtc->base.mode; struct drm_device *dev = nv_crtc->base.dev; - u32 *push; + struct nouveau_connector *nv_connector; + u32 *push, outX, outY; - /*XXX: actually handle scaling */ + outX = mode->hdisplay; + outY = mode->vdisplay; + + nv_connector = nouveau_crtc_connector_get(nv_crtc); + if (nv_connector && nv_connector->native_mode) { + struct drm_display_mode *native = nv_connector->native_mode; + u32 xratio = (native->hdisplay << 19) / mode->hdisplay; + u32 yratio = (native->vdisplay << 19) / mode->vdisplay; + + switch (type) { + case DRM_MODE_SCALE_ASPECT: + if (xratio > yratio) { + outX = (mode->hdisplay * yratio) >> 19; + outY = (mode->vdisplay * yratio) >> 19; + } else { + outX = (mode->hdisplay * xratio) >> 19; + outY = (mode->vdisplay * xratio) >> 19; + } + break; + case DRM_MODE_SCALE_FULLSCREEN: + outX = native->hdisplay; + outY = native->vdisplay; + break; + default: + break; + } + } push = evo_wait(dev, 0, 16); if (push) { evo_mthd(push, 0x04c0 + (nv_crtc->index * 0x300), 3); - evo_data(push, (mode->vdisplay << 16) | mode->hdisplay); - evo_data(push, (mode->vdisplay << 16) | mode->hdisplay); - evo_data(push, (mode->vdisplay << 16) | mode->hdisplay); + evo_data(push, (outY << 16) | outX); + evo_data(push, (outY << 16) | outX); + evo_data(push, (outY << 16) | outX); evo_mthd(push, 0x0494 + (nv_crtc->index * 0x300), 1); evo_data(push, 0x00000000); evo_mthd(push, 0x04b0 + (nv_crtc->index * 0x300), 1); |