2 * Mesa 3-D graphics library
5 * Copyright (C) 2011 Benjamin Franzke <benjaminfranzke@googlemail.com>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
27 #include <sys/types.h>
31 #include "pipe/p_compiler.h"
32 #include "pipe/p_defines.h"
33 #include "pipe/p_state.h"
34 #include "util/u_format.h"
35 #include "util/u_math.h"
36 #include "util/u_memory.h"
37 #include "state_tracker/sw_winsys.h"
39 #include <wayland-client.h>
40 #include "wayland_sw_winsys.h"
42 struct wayland_sw_displaytarget
51 enum pipe_format format;
57 struct wayland_sw_winsys
59 struct sw_winsys base;
61 struct wl_display *display;
64 static INLINE struct wayland_sw_displaytarget *
65 wayland_sw_displaytarget(struct sw_displaytarget *dt)
67 return (struct wayland_sw_displaytarget *) dt;
70 static INLINE struct wayland_sw_winsys *
71 wayland_sw_winsys(struct sw_winsys *ws)
73 return (struct wayland_sw_winsys *) ws;
77 wayland_displaytarget_display(struct sw_winsys *ws,
78 struct sw_displaytarget *dt,
79 void *context_private)
84 wayland_displaytarget_unmap(struct sw_winsys *ws,
85 struct sw_displaytarget *dt)
87 struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
90 if (wldt->map_count > 0)
93 munmap(wldt->map, wldt->size);
98 wayland_displaytarget_map(struct sw_winsys *ws,
99 struct sw_displaytarget *dt,
102 struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
110 if (flags & PIPE_TRANSFER_READ)
111 mmap_flags |= PROT_READ;
112 if (flags & PIPE_TRANSFER_WRITE)
113 mmap_flags |= PROT_WRITE;
115 wldt->map = mmap(NULL, wldt->size, mmap_flags,
116 MAP_SHARED, wldt->fd, 0);
118 if (wldt->map == MAP_FAILED)
127 wayland_displaytarget_destroy(struct sw_winsys *ws,
128 struct sw_displaytarget *dt)
130 struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
133 wayland_displaytarget_unmap(ws, dt);
139 wayland_is_displaytarget_format_supported(struct sw_winsys *ws,
141 enum pipe_format format)
144 case PIPE_FORMAT_B8G8R8X8_UNORM:
145 case PIPE_FORMAT_B8G8R8A8_UNORM:
152 static struct sw_displaytarget *
153 wayland_displaytarget_create(struct sw_winsys *ws,
155 enum pipe_format format,
156 unsigned width, unsigned height,
160 struct wayland_sw_displaytarget *wldt;
161 unsigned nblocksy, format_stride;
162 char filename[] = "/tmp/wayland-shm-XXXXXX";
164 if (!wayland_is_displaytarget_format_supported(ws, tex_usage, format))
167 wldt = CALLOC_STRUCT(wayland_sw_displaytarget);
173 wldt->format = format;
175 wldt->height = height;
177 format_stride = util_format_get_stride(format, width);
178 wldt->stride = align(format_stride, alignment);
180 nblocksy = util_format_get_nblocksy(format, height);
181 wldt->size = wldt->stride * nblocksy;
183 wldt->fd = mkstemp(filename);
189 if (ftruncate(wldt->fd, wldt->size) < 0) {
198 *stride = wldt->stride;
200 return (struct sw_displaytarget *) wldt;
203 static struct sw_displaytarget *
204 wayland_displaytarget_from_handle(struct sw_winsys *ws,
205 const struct pipe_resource *templet,
206 struct winsys_handle *whandle,
209 struct wayland_sw_displaytarget *wldt;
212 if (!wayland_is_displaytarget_format_supported(ws, 0, templet->format))
215 wldt = CALLOC_STRUCT(wayland_sw_displaytarget);
219 wldt->fd = whandle->fd;
220 wldt->stride = whandle->stride;
221 wldt->width = templet->width0;
222 wldt->height = templet->height0;
223 wldt->format = templet->format;
225 nblocksy = util_format_get_nblocksy(wldt->format, wldt->height);
227 wldt->size = wldt->stride * nblocksy;
231 *stride = wldt->stride;
233 return (struct sw_displaytarget *) wldt;
238 wayland_displaytarget_get_handle(struct sw_winsys *ws,
239 struct sw_displaytarget *dt,
240 struct winsys_handle *whandle)
242 struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
244 whandle->fd = wldt->fd;
245 whandle->stride = wldt->stride;
251 wayland_destroy(struct sw_winsys *ws)
253 struct wayland_sw_winsys *wayland = wayland_sw_winsys(ws);
259 wayland_create_sw_winsys(struct wl_display *display)
261 struct wayland_sw_winsys *wlws;
263 wlws = CALLOC_STRUCT(wayland_sw_winsys);
267 wlws->display = display;
269 wlws->base.destroy = wayland_destroy;
270 wlws->base.is_displaytarget_format_supported =
271 wayland_is_displaytarget_format_supported;
273 wlws->base.displaytarget_create = wayland_displaytarget_create;
274 wlws->base.displaytarget_from_handle = wayland_displaytarget_from_handle;
275 wlws->base.displaytarget_get_handle = wayland_displaytarget_get_handle;
276 wlws->base.displaytarget_destroy = wayland_displaytarget_destroy;
277 wlws->base.displaytarget_map = wayland_displaytarget_map;
278 wlws->base.displaytarget_unmap = wayland_displaytarget_unmap;
280 wlws->base.displaytarget_display = wayland_displaytarget_display;
285 /* vim: set sw=3 ts=8 sts=3 expandtab: */