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tests/modetest: add QCOM_COMPRESSED to supported modifiers list
[android-x86/external-libdrm.git] / libkms / vmwgfx.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 #include "internal.h"
33
34 #include "xf86drm.h"
35 #include "libdrm_macros.h"
36 #include "vmwgfx_drm.h"
37
38 struct vmwgfx_bo
39 {
40         struct kms_bo base;
41         uint64_t map_handle;
42         unsigned map_count;
43 };
44
45 static int
46 vmwgfx_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
47 {
48         switch (key) {
49         case KMS_BO_TYPE:
50                 *out = KMS_BO_TYPE_SCANOUT_X8R8G8B8 | KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
51                 break;
52         default:
53                 return -EINVAL;
54         }
55         return 0;
56 }
57
58 static int
59 vmwgfx_destroy(struct kms_driver *kms)
60 {
61         free(kms);
62         return 0;
63 }
64
65 static int
66 vmwgfx_bo_create(struct kms_driver *kms,
67                  const unsigned width, const unsigned height,
68                  const enum kms_bo_type type, const unsigned *attr,
69                  struct kms_bo **out)
70 {
71         struct vmwgfx_bo *bo;
72         int i, ret;
73
74         for (i = 0; attr[i]; i += 2) {
75                 switch (attr[i]) {
76                 case KMS_WIDTH:
77                 case KMS_HEIGHT:
78                 case KMS_BO_TYPE:
79                         break;
80                 default:
81                         return -EINVAL;
82                 }
83         }
84
85         bo = calloc(1, sizeof(*bo));
86         if (!bo)
87                 return -EINVAL;
88
89         {
90                 union drm_vmw_alloc_dmabuf_arg arg;
91                 struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
92                 struct drm_vmw_dmabuf_rep *rep = &arg.rep;
93
94                 memset(&arg, 0, sizeof(arg));
95                 req->size = width * height * 4;
96                 bo->base.size = req->size;
97                 bo->base.pitch = width * 4;
98                 bo->base.kms = kms;
99
100                 do {
101                         ret = drmCommandWriteRead(bo->base.kms->fd,
102                                                   DRM_VMW_ALLOC_DMABUF,
103                                                   &arg, sizeof(arg));
104                 } while (ret == -ERESTART);
105
106                 if (ret)
107                         goto err_free;
108
109                 bo->base.handle = rep->handle;
110                 bo->map_handle = rep->map_handle;
111                 bo->base.handle = rep->cur_gmr_id;
112                 bo->base.offset = rep->cur_gmr_offset;
113         }
114
115         *out = &bo->base;
116
117         return 0;
118
119 err_free:
120         free(bo);
121         return ret;
122 }
123
124 static int
125 vmwgfx_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
126 {
127         switch (key) {
128         default:
129                 return -EINVAL;
130         }
131 }
132
133 static int
134 vmwgfx_bo_map(struct kms_bo *_bo, void **out)
135 {
136         struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
137         void *map;
138
139         if (bo->base.ptr) {
140                 bo->map_count++;
141                 *out = bo->base.ptr;
142                 return 0;
143         }
144
145         map = drm_mmap(NULL, bo->base.size, PROT_READ | PROT_WRITE, MAP_SHARED, bo->base.kms->fd, bo->map_handle);
146         if (map == MAP_FAILED)
147                 return -errno;
148
149         bo->base.ptr = map;
150         bo->map_count++;
151         *out = bo->base.ptr;
152
153         return 0;
154 }
155
156 static int
157 vmwgfx_bo_unmap(struct kms_bo *_bo)
158 {
159         struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
160         bo->map_count--;
161         return 0;
162 }
163
164 static int
165 vmwgfx_bo_destroy(struct kms_bo *_bo)
166 {
167         struct vmwgfx_bo *bo = (struct vmwgfx_bo *)_bo;
168         struct drm_vmw_unref_dmabuf_arg arg;
169
170         if (bo->base.ptr) {
171                 /* XXX Sanity check map_count */
172                 drm_munmap(bo->base.ptr, bo->base.size);
173                 bo->base.ptr = NULL;
174         }
175
176         memset(&arg, 0, sizeof(arg));
177         arg.handle = bo->base.handle;
178         drmCommandWrite(bo->base.kms->fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
179
180         free(bo);
181         return 0;
182 }
183
184 drm_private int
185 vmwgfx_create(int fd, struct kms_driver **out)
186 {
187         struct kms_driver *kms;
188
189         kms = calloc(1, sizeof(*kms));
190         if (!kms)
191                 return -ENOMEM;
192
193         kms->fd = fd;
194
195         kms->bo_create = vmwgfx_bo_create;
196         kms->bo_map = vmwgfx_bo_map;
197         kms->bo_unmap = vmwgfx_bo_unmap;
198         kms->bo_get_prop = vmwgfx_bo_get_prop;
199         kms->bo_destroy = vmwgfx_bo_destroy;
200         kms->get_prop = vmwgfx_get_prop;
201         kms->destroy = vmwgfx_destroy;
202         *out = kms;
203         return 0;
204 }