libkms/api.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include <errno.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #include "libdrm_macros.h"
  34 #include "internal.h"
  35
  36 drm_public int kms_create(int fd, struct kms_driver **out)
  37 {
  38         return linux_create(fd, out);
  39 }
  40
  41 drm_public int kms_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
  42 {
  43         switch (key) {
  44         case KMS_BO_TYPE:
  45                 break;
  46         default:
  47                 return -EINVAL;
  48         }
  49         return kms->get_prop(kms, key, out);
  50 }
  51
  52 drm_public int kms_destroy(struct kms_driver **kms)
  53 {
  54         if (!(*kms))
  55                 return 0;
  56
  57         free(*kms);
  58         *kms = NULL;
  59         return 0;
  60 }
  61
  62 drm_public int kms_bo_create(struct kms_driver *kms, const unsigned *attr, struct kms_bo **out)
  63 {
  64         unsigned width = 0;
  65         unsigned height = 0;
  66         enum kms_bo_type type = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
  67         int i;
  68
  69         for (i = 0; attr[i];) {
  70                 unsigned key = attr[i++];
  71                 unsigned value = attr[i++];
  72
  73                 switch (key) {
  74                 case KMS_WIDTH:
  75                         width = value;
  76                         break;
  77                 case KMS_HEIGHT:
  78                         height = value;
  79                         break;
  80                 case KMS_BO_TYPE:
  81                         type = value;
  82                         break;
  83                 default:
  84                         return -EINVAL;
  85                 }
  86         }
  87
  88         if (width == 0 || height == 0)
  89                 return -EINVAL;
  90
  91         /* XXX sanity check type */
  92
  93         if (type == KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8 &&
  94             (width != 64 || height != 64))
  95                 return -EINVAL;
  96
  97         return kms->bo_create(kms, width, height, type, attr, out);
  98 }
  99
 100 drm_public int kms_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
 101 {
 102         switch (key) {
 103         case KMS_PITCH:
 104                 *out = bo->pitch;
 105                 break;
 106         case KMS_HANDLE:
 107                 *out = bo->handle;
 108                 break;
 109         default:
 110                 return -EINVAL;
 111         }
 112
 113         return 0;
 114 }
 115
 116 drm_public int kms_bo_map(struct kms_bo *bo, void **out)
 117 {
 118         return bo->kms->bo_map(bo, out);
 119 }
 120
 121 drm_public int kms_bo_unmap(struct kms_bo *bo)
 122 {
 123         return bo->kms->bo_unmap(bo);
 124 }
 125
 126 drm_public int kms_bo_destroy(struct kms_bo **bo)
 127 {
 128         int ret;
 129
 130         if (!(*bo))
 131                 return 0;
 132
 133         ret = (*bo)->kms->bo_destroy(*bo);
 134         if (ret)
 135                 return ret;
 136
 137         *bo = NULL;
 138         return 0;
 139 }