diff options
author | Jakob Bornecrantz <jakob@aurora.(none)> | 2008-01-11 17:13:48 +0100 |
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committer | Jakob Bornecrantz <jakob@aurora.(none)> | 2008-01-11 17:13:48 +0100 |
commit | f07942f74a08e4c65e3b5e5c46f543686ae30c2b (patch) | |
tree | 4b4d9b5d5e8c1fa09d2b4f871dfc208f39dbf563 /linux-core/drm_crtc.c | |
parent | 12a47cd136803883231c9763f2007216236ec3b2 (diff) |
Panning now works without modeset
Diffstat (limited to 'linux-core/drm_crtc.c')
-rw-r--r-- | linux-core/drm_crtc.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index fdf4c70e..1e69eca3 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -1048,6 +1048,7 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, struct drm_crtc **save_crtcs, *new_crtc; bool save_enabled = crtc->enabled; bool changed = false; + bool flip_or_move = false; struct drm_output *output; int count = 0, ro; @@ -1055,11 +1056,13 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, if (!save_crtcs) return -ENOMEM; + /* We should be able to check here if the fb has the same properties + * and then just flip_or_move it */ if (crtc->fb != fb) changed = true; if (crtc_info->x != crtc->x || crtc_info->y != crtc->y) - changed = true; + flip_or_move = true; if (new_mode && !drm_mode_equal(new_mode, &crtc->mode)) changed = true; @@ -1082,6 +1085,10 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, } } + /* mode_set_base is not a required function */ + if (flip_or_move && !crtc->funcs->mode_set_base) + changed = true; + if (changed) { crtc->fb = fb; crtc->enabled = (new_mode != NULL); @@ -1102,7 +1109,10 @@ int drm_crtc_set_config(struct drm_crtc *crtc, struct drm_mode_crtc *crtc_info, crtc->desired_mode = new_mode; } drm_disable_unused_functions(dev); + } else if (flip_or_move) { + crtc->funcs->mode_set_base(crtc, crtc_info->x, crtc_info->y); } + kfree(save_crtcs); return 0; } @@ -1564,6 +1574,7 @@ int drm_mode_setcrtc(struct drm_device *dev, if (crtc_req->count_outputs > 0) { u32 out_id; + /* Maybe we should check that count_outputs is a sensible value. */ output_set = kmalloc(crtc_req->count_outputs * sizeof(struct drm_output *), GFP_KERNEL); if (!output_set) { @@ -1589,6 +1600,7 @@ int drm_mode_setcrtc(struct drm_device *dev, } } + /* What happens to output_set, leak? */ ret = drm_crtc_set_config(crtc, crtc_req, mode, output_set, fb); out: |