summaryrefslogtreecommitdiff
path: root/shared-core
diff options
context:
space:
mode:
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/drm_drawable.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/shared-core/drm_drawable.c b/shared-core/drm_drawable.c
deleted file mode 100644
index 0817e321..00000000
--- a/shared-core/drm_drawable.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/**
- * \file drm_drawable.c
- * IOCTLs for drawables
- *
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- * \author Michel Dänzer <michel@tungstengraphics.com>
- */
-
-/*
- * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com
- *
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck, North Dakota.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include "drmP.h"
-
-/**
- * Allocate drawable ID and memory to store information about it.
- */
-int drm_adddraw(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- unsigned long irqflags;
- int i, j;
- u32 *bitfield = dev->drw_bitfield;
- unsigned int bitfield_length = dev->drw_bitfield_length;
- drm_drawable_info_t **info = dev->drw_info;
- unsigned int info_length = dev->drw_info_length;
- drm_draw_t draw;
-
- for (i = 0, j = 0; i < bitfield_length; i++) {
- if (bitfield[i] == ~0)
- continue;
-
- for (; j < 8 * sizeof(*bitfield); j++)
- if (!(bitfield[i] & (1 << j)))
- goto done;
- }
-done:
-
- if (i == bitfield_length) {
- bitfield_length++;
-
- bitfield = drm_alloc(bitfield_length * sizeof(*bitfield),
- DRM_MEM_BUFS);
-
- if (!bitfield) {
- DRM_ERROR("Failed to allocate new drawable bitfield\n");
- return DRM_ERR(ENOMEM);
- }
-
- if (8 * sizeof(*bitfield) * bitfield_length > info_length) {
- info_length += 8 * sizeof(*bitfield);
-
- info = drm_alloc(info_length * sizeof(*info),
- DRM_MEM_BUFS);
-
- if (!info) {
- DRM_ERROR("Failed to allocate new drawable info"
- " array\n");
-
- drm_free(bitfield,
- bitfield_length * sizeof(*bitfield),
- DRM_MEM_BUFS);
- return DRM_ERR(ENOMEM);
- }
- }
-
- bitfield[i] = 0;
- }
-
- draw.handle = i * 8 * sizeof(*bitfield) + j + 1;
- DRM_DEBUG("%d\n", draw.handle);
-
- spin_lock_irqsave(&dev->drw_lock, irqflags);
-
- bitfield[i] |= 1 << j;
- info[draw.handle - 1] = NULL;
-
- if (bitfield != dev->drw_bitfield) {
- memcpy(bitfield, dev->drw_bitfield, dev->drw_bitfield_length *
- sizeof(*bitfield));
- drm_free(dev->drw_bitfield, sizeof(*bitfield) *
- dev->drw_bitfield_length, DRM_MEM_BUFS);
- dev->drw_bitfield = bitfield;
- dev->drw_bitfield_length = bitfield_length;
- }
-
- if (info != dev->drw_info) {
- memcpy(info, dev->drw_info, dev->drw_info_length *
- sizeof(*info));
- drm_free(dev->drw_info, sizeof(*info) * dev->drw_info_length,
- DRM_MEM_BUFS);
- dev->drw_info = info;
- dev->drw_info_length = info_length;
- }
-
- spin_unlock_irqrestore(&dev->drw_lock, irqflags);
-
- DRM_COPY_TO_USER_IOCTL((drm_draw_t __user *)data, draw, sizeof(draw));
-
- return 0;
-}
-
-/**
- * Free drawable ID and memory to store information about it.
- */
-int drm_rmdraw(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_draw_t draw;
- int id, idx;
- unsigned int shift;
- unsigned long irqflags;
- u32 *bitfield = dev->drw_bitfield;
- unsigned int bitfield_length = dev->drw_bitfield_length;
- drm_drawable_info_t **info = dev->drw_info;
- unsigned int info_length = dev->drw_info_length;
-
- DRM_COPY_FROM_USER_IOCTL(draw, (drm_draw_t __user *) data,
- sizeof(draw));
-
- id = draw.handle - 1;
- idx = id / (8 * sizeof(*bitfield));
- shift = id % (8 * sizeof(*bitfield));
-
- if (idx < 0 || idx >= bitfield_length ||
- !(bitfield[idx] & (1 << shift))) {
- DRM_DEBUG("No such drawable %d\n", draw.handle);
- return 0;
- }
-
- spin_lock_irqsave(&dev->drw_lock, irqflags);
-
- bitfield[idx] &= ~(1 << shift);
-
- spin_unlock_irqrestore(&dev->drw_lock, irqflags);
-
- if (info[id]) {
- drm_free(info[id]->rects, info[id]->num_rects *
- sizeof(drm_clip_rect_t), DRM_MEM_BUFS);
- drm_free(info[id], sizeof(**info), DRM_MEM_BUFS);
- }
-
- /* Can we shrink the arrays? */
- if (idx == bitfield_length - 1) {
- while (idx >= 0 && !bitfield[idx])
- --idx;
-
- bitfield_length = idx + 1;
-
- if (idx != id / (8 * sizeof(*bitfield)))
- bitfield = drm_alloc(bitfield_length *
- sizeof(*bitfield), DRM_MEM_BUFS);
-
- if (!bitfield && bitfield_length) {
- bitfield = dev->drw_bitfield;
- bitfield_length = dev->drw_bitfield_length;
- }
- }
-
- if (bitfield != dev->drw_bitfield) {
- info_length = 8 * sizeof(*bitfield) * bitfield_length;
-
- info = drm_alloc(info_length * sizeof(*info), DRM_MEM_BUFS);
-
- if (!info && info_length) {
- info = dev->drw_info;
- info_length = dev->drw_info_length;
- }
-
- spin_lock_irqsave(&dev->drw_lock, irqflags);
-
- memcpy(bitfield, dev->drw_bitfield, bitfield_length *
- sizeof(*bitfield));
- drm_free(dev->drw_bitfield, sizeof(*bitfield) *
- dev->drw_bitfield_length, DRM_MEM_BUFS);
- dev->drw_bitfield = bitfield;
- dev->drw_bitfield_length = bitfield_length;
-
- if (info != dev->drw_info) {
- memcpy(info, dev->drw_info, info_length *
- sizeof(*info));
- drm_free(dev->drw_info, sizeof(*info) *
- dev->drw_info_length, DRM_MEM_BUFS);
- dev->drw_info = info;
- dev->drw_info_length = info_length;
- }
-
- spin_unlock_irqrestore(&dev->drw_lock, irqflags);
- }
-
- DRM_DEBUG("%d\n", draw.handle);
- return 0;
-}
-
-int drm_update_drawable_info(DRM_IOCTL_ARGS) {
- DRM_DEVICE;
- drm_update_draw_t update;
- unsigned int id, idx, shift, bitfield_length = dev->drw_bitfield_length;
- u32 *bitfield = dev->drw_bitfield;
- unsigned long irqflags;
- drm_drawable_info_t *info;
- drm_clip_rect_t *rects;
- int err;
-
- DRM_COPY_FROM_USER_IOCTL(update, (drm_update_draw_t __user *) data,
- sizeof(update));
-
- id = update.handle - 1;
- idx = id / (8 * sizeof(*bitfield));
- shift = id % (8 * sizeof(*bitfield));
-
- if (idx < 0 || idx >= bitfield_length ||
- !(bitfield[idx] & (1 << shift))) {
- DRM_ERROR("No such drawable %d\n", update.handle);
- return DRM_ERR(EINVAL);
- }
-
- info = dev->drw_info[id];
-
- if (!info) {
- info = drm_calloc(1, sizeof(drm_drawable_info_t), DRM_MEM_BUFS);
-
- if (!info) {
- DRM_ERROR("Failed to allocate drawable info memory\n");
- return DRM_ERR(ENOMEM);
- }
- }
-
- switch (update.type) {
- case DRM_DRAWABLE_CLIPRECTS:
- if (update.num != info->num_rects) {
- rects = drm_alloc(update.num * sizeof(drm_clip_rect_t),
- DRM_MEM_BUFS);
- } else
- rects = info->rects;
-
- if (update.num && !rects) {
- DRM_ERROR("Failed to allocate cliprect memory\n");
- err = DRM_ERR(ENOMEM);
- goto error;
- }
-
- if (update.num && DRM_COPY_FROM_USER(rects,
- (drm_clip_rect_t __user *)
- (unsigned long)update.data,
- update.num *
- sizeof(*rects))) {
- DRM_ERROR("Failed to copy cliprects from userspace\n");
- err = DRM_ERR(EFAULT);
- goto error;
- }
-
- spin_lock_irqsave(&dev->drw_lock, irqflags);
-
- if (rects != info->rects) {
- drm_free(info->rects, info->num_rects *
- sizeof(drm_clip_rect_t), DRM_MEM_BUFS);
- }
-
- info->rects = rects;
- info->num_rects = update.num;
- dev->drw_info[id] = info;
-
- spin_unlock_irqrestore(&dev->drw_lock, irqflags);
-
- DRM_DEBUG("Updated %d cliprects for drawable %d\n",
- info->num_rects, id);
- break;
- default:
- DRM_ERROR("Invalid update type %d\n", update.type);
- return DRM_ERR(EINVAL);
- }
-
- return 0;
-
-error:
- if (!dev->drw_info[id])
- drm_free(info, sizeof(*info), DRM_MEM_BUFS);
- else if (rects != dev->drw_info[id]->rects)
- drm_free(rects, update.num *
- sizeof(drm_clip_rect_t), DRM_MEM_BUFS);
-
- return err;
-}
-
-/**
- * Caller must hold the drawable spinlock!
- */
-drm_drawable_info_t *drm_get_drawable_info(drm_device_t *dev, drm_drawable_t id) {
- u32 *bitfield = dev->drw_bitfield;
- unsigned int idx, shift;
-
- id--;
- idx = id / (8 * sizeof(*bitfield));
- shift = id % (8 * sizeof(*bitfield));
-
- if (idx < 0 || idx >= dev->drw_bitfield_length ||
- !(bitfield[idx] & (1 << shift))) {
- DRM_DEBUG("No such drawable %d\n", id);
- return NULL;
- }
-
- return dev->drw_info[id];
-}
-EXPORT_SYMBOL(drm_get_drawable_info);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 13:56:16 +0000