1 /**************************************************************************
3 * Copyright 2009, VMware, Inc.
5 * Copyright 2010 George Sapountzis <gsapountzis@gmail.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #include "pipe/p_compiler.h"
30 #include "pipe/p_format.h"
31 #include "util/u_inlines.h"
32 #include "util/u_format.h"
33 #include "util/u_math.h"
34 #include "util/u_memory.h"
36 #include "state_tracker/sw_winsys.h"
37 #include "dri_sw_winsys.h"
40 struct dri_sw_displaytarget
42 enum pipe_format format
;
53 struct sw_winsys base
;
55 struct drisw_loader_funcs
*lf
;
58 static INLINE
struct dri_sw_displaytarget
*
59 dri_sw_displaytarget( struct sw_displaytarget
*dt
)
61 return (struct dri_sw_displaytarget
*)dt
;
64 static INLINE
struct dri_sw_winsys
*
65 dri_sw_winsys( struct sw_winsys
*ws
)
67 return (struct dri_sw_winsys
*)ws
;
72 dri_sw_is_displaytarget_format_supported( struct sw_winsys
*ws
,
74 enum pipe_format format
)
76 /* TODO: check visuals or other sensible thing here */
80 static struct sw_displaytarget
*
81 dri_sw_displaytarget_create(struct sw_winsys
*winsys
,
83 enum pipe_format format
,
84 unsigned width
, unsigned height
,
88 struct dri_sw_displaytarget
*dri_sw_dt
;
89 unsigned nblocksy
, size
, format_stride
;
91 dri_sw_dt
= CALLOC_STRUCT(dri_sw_displaytarget
);
95 dri_sw_dt
->format
= format
;
96 dri_sw_dt
->width
= width
;
97 dri_sw_dt
->height
= height
;
99 format_stride
= util_format_get_stride(format
, width
);
100 dri_sw_dt
->stride
= align(format_stride
, alignment
);
102 nblocksy
= util_format_get_nblocksy(format
, height
);
103 size
= dri_sw_dt
->stride
* nblocksy
;
105 dri_sw_dt
->data
= align_malloc(size
, alignment
);
109 *stride
= dri_sw_dt
->stride
;
110 return (struct sw_displaytarget
*)dri_sw_dt
;
119 dri_sw_displaytarget_destroy(struct sw_winsys
*ws
,
120 struct sw_displaytarget
*dt
)
122 struct dri_sw_displaytarget
*dri_sw_dt
= dri_sw_displaytarget(dt
);
124 if (dri_sw_dt
->data
) {
125 FREE(dri_sw_dt
->data
);
132 dri_sw_displaytarget_map(struct sw_winsys
*ws
,
133 struct sw_displaytarget
*dt
,
136 struct dri_sw_displaytarget
*dri_sw_dt
= dri_sw_displaytarget(dt
);
137 dri_sw_dt
->mapped
= dri_sw_dt
->data
;
138 return dri_sw_dt
->mapped
;
142 dri_sw_displaytarget_unmap(struct sw_winsys
*ws
,
143 struct sw_displaytarget
*dt
)
145 struct dri_sw_displaytarget
*dri_sw_dt
= dri_sw_displaytarget(dt
);
146 dri_sw_dt
->mapped
= NULL
;
149 static struct sw_displaytarget
*
150 dri_sw_displaytarget_from_handle(struct sw_winsys
*winsys
,
151 const struct pipe_resource
*templ
,
152 struct winsys_handle
*whandle
,
160 dri_sw_displaytarget_get_handle(struct sw_winsys
*winsys
,
161 struct sw_displaytarget
*dt
,
162 struct winsys_handle
*whandle
)
169 dri_sw_displaytarget_display(struct sw_winsys
*ws
,
170 struct sw_displaytarget
*dt
,
171 void *context_private
)
173 struct dri_sw_winsys
*dri_sw_ws
= dri_sw_winsys(ws
);
174 struct dri_sw_displaytarget
*dri_sw_dt
= dri_sw_displaytarget(dt
);
175 struct dri_drawable
*dri_drawable
= (struct dri_drawable
*)context_private
;
176 unsigned width
, height
;
178 /* Set the width to 'stride / cpp'.
180 * PutImage correctly clips to the width of the dst drawable.
182 width
= dri_sw_dt
->stride
/ util_format_get_blocksize(dri_sw_dt
->format
);
184 height
= dri_sw_dt
->height
;
186 dri_sw_ws
->lf
->put_image(dri_drawable
, dri_sw_dt
->data
, width
, height
);
191 dri_destroy_sw_winsys(struct sw_winsys
*winsys
)
197 dri_create_sw_winsys(struct drisw_loader_funcs
*lf
)
199 struct dri_sw_winsys
*ws
;
201 ws
= CALLOC_STRUCT(dri_sw_winsys
);
206 ws
->base
.destroy
= dri_destroy_sw_winsys
;
208 ws
->base
.is_displaytarget_format_supported
= dri_sw_is_displaytarget_format_supported
;
210 /* screen texture functions */
211 ws
->base
.displaytarget_create
= dri_sw_displaytarget_create
;
212 ws
->base
.displaytarget_destroy
= dri_sw_displaytarget_destroy
;
213 ws
->base
.displaytarget_from_handle
= dri_sw_displaytarget_from_handle
;
214 ws
->base
.displaytarget_get_handle
= dri_sw_displaytarget_get_handle
;
216 /* texture functions */
217 ws
->base
.displaytarget_map
= dri_sw_displaytarget_map
;
218 ws
->base
.displaytarget_unmap
= dri_sw_displaytarget_unmap
;
220 ws
->base
.displaytarget_display
= dri_sw_displaytarget_display
;
225 /* vim: set sw=3 ts=8 sts=3 expandtab: */