2 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
3 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
26 * Rickard E. (Rik) Faith <faith@valinux.com>
27 * Gareth Hughes <gareth@valinux.com>
31 /** @file drm_drawable.c
32 * This file implements ioctls to store information along with DRM drawables,
33 * such as the current set of cliprects for vblank-synced buffer swaps.
38 struct bsd_drm_drawable_info {
39 struct drm_drawable_info info;
41 RB_ENTRY(bsd_drm_drawable_info) tree;
45 drm_drawable_compare(struct bsd_drm_drawable_info *a,
46 struct bsd_drm_drawable_info *b)
48 if (a->handle > b->handle)
50 if (a->handle < b->handle)
55 RB_GENERATE_STATIC(drawable_tree, bsd_drm_drawable_info, tree,
56 drm_drawable_compare);
58 struct drm_drawable_info *
59 drm_get_drawable_info(struct drm_device *dev, int handle)
61 struct bsd_drm_drawable_info find, *result;
64 result = RB_FIND(drawable_tree, &dev->drw_head, &find);
69 int drm_adddraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
71 struct drm_draw *draw = data;
72 struct bsd_drm_drawable_info *info;
74 info = drm_calloc(1, sizeof(struct bsd_drm_drawable_info),
79 info->handle = alloc_unr(dev->drw_unrhdr);
80 DRM_SPINLOCK(&dev->drw_lock);
81 RB_INSERT(drawable_tree, &dev->drw_head, info);
82 draw->handle = info->handle;
83 DRM_SPINUNLOCK(&dev->drw_lock);
85 DRM_DEBUG("%d\n", draw->handle);
90 int drm_rmdraw(struct drm_device *dev, void *data, struct drm_file *file_priv)
92 struct drm_draw *draw = (struct drm_draw *)data;
93 struct drm_drawable_info *info;
95 DRM_SPINLOCK(&dev->drw_lock);
96 info = drm_get_drawable_info(dev, draw->handle);
98 RB_REMOVE(drawable_tree, &dev->drw_head,
99 (struct bsd_drm_drawable_info *)info);
100 DRM_SPINUNLOCK(&dev->drw_lock);
101 free_unr(dev->drw_unrhdr, draw->handle);
102 drm_free(info, sizeof(struct bsd_drm_drawable_info),
106 DRM_SPINUNLOCK(&dev->drw_lock);
111 int drm_update_draw(struct drm_device *dev, void *data,
112 struct drm_file *file_priv)
114 struct drm_drawable_info *info;
115 struct drm_update_draw *update = (struct drm_update_draw *)data;
118 info = drm_get_drawable_info(dev, update->handle);
122 switch (update->type) {
123 case DRM_DRAWABLE_CLIPRECTS:
124 DRM_SPINLOCK(&dev->drw_lock);
125 if (update->num != info->num_rects) {
126 drm_free(info->rects,
127 sizeof(*info->rects) * info->num_rects,
132 if (update->num == 0) {
133 DRM_SPINUNLOCK(&dev->drw_lock);
136 if (info->rects == NULL) {
137 info->rects = drm_alloc(sizeof(*info->rects) *
138 update->num, DRM_MEM_DRAWABLE);
139 if (info->rects == NULL) {
140 DRM_SPINUNLOCK(&dev->drw_lock);
143 info->num_rects = update->num;
145 /* For some reason the pointer arg is unsigned long long. */
146 ret = copyin((void *)(intptr_t)update->data, info->rects,
147 sizeof(*info->rects) * info->num_rects);
148 DRM_SPINUNLOCK(&dev->drw_lock);
155 void drm_drawable_free_all(struct drm_device *dev)
157 struct bsd_drm_drawable_info *info, *next;
159 DRM_SPINLOCK(&dev->drw_lock);
160 for (info = RB_MIN(drawable_tree, &dev->drw_head);
161 info != NULL ; info = next) {
162 next = RB_NEXT(drawable_tree, &dev->drw_head, info);
163 RB_REMOVE(drawable_tree, &dev->drw_head,
164 (struct bsd_drm_drawable_info *)info);
165 DRM_SPINUNLOCK(&dev->drw_lock);
166 free_unr(dev->drw_unrhdr, info->handle);
167 drm_free(info, sizeof(struct bsd_drm_drawable_info),
169 DRM_SPINLOCK(&dev->drw_lock);
171 DRM_SPINUNLOCK(&dev->drw_lock);