2 * Copyright © 2009 Corbin Simpson
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
15 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
17 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
28 * Corbin Simpson <MostAwesomeDude@gmail.com>
29 * Joakim Sindholt <opensource@zhasha.com>
32 #include "radeon_drm.h"
34 /* Create a pipe_screen. */
35 struct pipe_screen
* radeon_create_screen(struct drm_api
* api
,
37 struct drm_create_screen_arg
*arg
)
39 struct radeon_winsys
* winsys
= radeon_pipe_winsys(drmFB
);
41 if (getenv("RADEON_SOFTPIPE")) {
42 return softpipe_create_screen((struct pipe_winsys
*)winsys
);
44 struct r300_winsys
* r300
= radeon_create_r300_winsys(drmFB
, winsys
);
46 return r300_create_screen(r300
);
50 /* Create a pipe_context. */
51 struct pipe_context
* radeon_create_context(struct drm_api
* api
,
52 struct pipe_screen
* screen
)
54 if (getenv("RADEON_SOFTPIPE")) {
55 return radeon_create_softpipe(screen
->winsys
);
57 return r300_create_context(screen
,
58 (struct r300_winsys
*)screen
->winsys
);
62 boolean
radeon_buffer_from_texture(struct drm_api
* api
,
63 struct pipe_texture
* texture
,
64 struct pipe_buffer
** buffer
,
68 return r300_get_texture_buffer(texture
, buffer
, stride
);
71 /* Create a buffer from a handle. */
72 /* XXX what's up with name? */
73 struct pipe_buffer
* radeon_buffer_from_handle(struct drm_api
* api
,
74 struct pipe_screen
* screen
,
78 struct radeon_bo_manager
* bom
=
79 ((struct radeon_winsys
*)screen
->winsys
)->priv
->bom
;
80 struct radeon_pipe_buffer
* radeon_buffer
;
81 struct radeon_bo
* bo
= NULL
;
83 bo
= radeon_bo_open(bom
, handle
, 0, 0, 0, 0);
88 radeon_buffer
= CALLOC_STRUCT(radeon_pipe_buffer
);
89 if (radeon_buffer
== NULL
) {
94 pipe_reference_init(&radeon_buffer
->base
.reference
, 1);
95 radeon_buffer
->base
.screen
= screen
;
96 radeon_buffer
->base
.usage
= PIPE_BUFFER_USAGE_PIXEL
;
97 radeon_buffer
->bo
= bo
;
98 return &radeon_buffer
->base
;
101 static struct pipe_texture
*
102 radeon_texture_from_shared_handle(struct drm_api
*api
,
103 struct pipe_screen
*screen
,
104 struct pipe_texture
*templ
,
109 struct pipe_buffer
*buffer
;
110 struct pipe_texture
*blanket
;
112 buffer
= radeon_buffer_from_handle(api
, screen
, name
, handle
);
117 blanket
= screen
->texture_blanket(screen
, templ
, &stride
, buffer
);
119 pipe_buffer_reference(&buffer
, NULL
);
124 static boolean
radeon_shared_handle_from_texture(struct drm_api
*api
,
125 struct pipe_screen
*screen
,
126 struct pipe_texture
*texture
,
131 struct drm_gem_flink flink
;
132 struct radeon_pipe_buffer
* radeon_buffer
;
133 struct pipe_buffer
*buffer
;
135 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
139 radeon_buffer
= (struct radeon_pipe_buffer
*)buffer
;
140 if (!radeon_buffer
->flinked
) {
141 fd
= ((struct radeon_winsys
*)screen
->winsys
)->priv
->fd
;
143 flink
.handle
= radeon_buffer
->bo
->handle
;
145 retval
= ioctl(fd
, DRM_IOCTL_GEM_FLINK
, &flink
);
147 debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
152 radeon_buffer
->flink
= flink
.name
;
153 radeon_buffer
->flinked
= TRUE
;
156 *handle
= radeon_buffer
->flink
;
160 static boolean
radeon_local_handle_from_texture(struct drm_api
*api
,
161 struct pipe_screen
*screen
,
162 struct pipe_texture
*texture
,
166 struct pipe_buffer
*buffer
;
167 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
171 *handle
= ((struct radeon_pipe_buffer
*)buffer
)->bo
->handle
;
173 pipe_buffer_reference(&buffer
, NULL
);
178 struct drm_api drm_api_hooks
= {
179 .create_screen
= radeon_create_screen
,
180 .create_context
= radeon_create_context
,
181 .texture_from_shared_handle
= radeon_texture_from_shared_handle
,
182 .shared_handle_from_texture
= radeon_shared_handle_from_texture
,
183 .local_handle_from_texture
= radeon_local_handle_from_texture
,
186 struct drm_api
* drm_api_create()
189 return trace_drm_create(&drm_api_hooks
);
191 return &drm_api_hooks
;