--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.11
+ *
+ * Copyright (C) 2011 Benjamin Franzke <benjaminfranzke@googlemail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+#include "util/u_format.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "state_tracker/sw_winsys.h"
+
+#include <wayland-client.h>
+#include "wayland_sw_winsys.h"
+
+struct wayland_sw_displaytarget
+{
+ int fd;
+ unsigned size;
+
+ unsigned width;
+ unsigned height;
+ unsigned stride;
+
+ enum pipe_format format;
+
+ void *map;
+ unsigned map_count;
+};
+
+struct wayland_sw_winsys
+{
+ struct sw_winsys base;
+
+ struct wl_display *display;
+};
+
+static INLINE struct wayland_sw_displaytarget *
+wayland_sw_displaytarget(struct sw_displaytarget *dt)
+{
+ return (struct wayland_sw_displaytarget *) dt;
+}
+
+static INLINE struct wayland_sw_winsys *
+wayland_sw_winsys(struct sw_winsys *ws)
+{
+ return (struct wayland_sw_winsys *) ws;
+}
+
+static void
+wayland_displaytarget_display(struct sw_winsys *ws,
+ struct sw_displaytarget *dt,
+ void *context_private)
+{
+}
+
+static void
+wayland_displaytarget_unmap(struct sw_winsys *ws,
+ struct sw_displaytarget *dt)
+{
+ struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
+
+ wldt->map_count--;
+ if (wldt->map_count > 0)
+ return;
+
+ munmap(wldt->map, wldt->size);
+ wldt->map = NULL;
+}
+
+static void *
+wayland_displaytarget_map(struct sw_winsys *ws,
+ struct sw_displaytarget *dt,
+ unsigned flags)
+{
+ struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
+ uint mmap_flags = 0;
+
+ if (wldt->map) {
+ wldt->map_count++;
+ return wldt->map;
+ }
+
+ if (flags & PIPE_TRANSFER_READ)
+ mmap_flags |= PROT_READ;
+ if (flags & PIPE_TRANSFER_WRITE)
+ mmap_flags |= PROT_WRITE;
+
+ wldt->map = mmap(NULL, wldt->size, mmap_flags,
+ MAP_SHARED, wldt->fd, 0);
+
+ if (wldt->map == MAP_FAILED)
+ return NULL;
+
+ wldt->map_count = 1;
+
+ return wldt->map;
+}
+
+static void
+wayland_displaytarget_destroy(struct sw_winsys *ws,
+ struct sw_displaytarget *dt)
+{
+ struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
+
+ if (wldt->map)
+ wayland_displaytarget_unmap(ws, dt);
+
+ FREE(wldt);
+}
+
+static boolean
+wayland_is_displaytarget_format_supported(struct sw_winsys *ws,
+ unsigned tex_usage,
+ enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_B8G8R8X8_UNORM:
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+static struct sw_displaytarget *
+wayland_displaytarget_create(struct sw_winsys *ws,
+ unsigned tex_usage,
+ enum pipe_format format,
+ unsigned width, unsigned height,
+ unsigned alignment,
+ unsigned *stride)
+{
+ struct wayland_sw_displaytarget *wldt;
+ unsigned nblocksy, format_stride;
+ char filename[] = "/tmp/wayland-shm-XXXXXX";
+
+ if (!wayland_is_displaytarget_format_supported(ws, tex_usage, format))
+ return NULL;
+
+ wldt = CALLOC_STRUCT(wayland_sw_displaytarget);
+ if (!wldt)
+ return NULL;
+
+ wldt->map = NULL;
+
+ wldt->format = format;
+ wldt->width = width;
+ wldt->height = height;
+
+ format_stride = util_format_get_stride(format, width);
+ wldt->stride = align(format_stride, alignment);
+
+ nblocksy = util_format_get_nblocksy(format, height);
+ wldt->size = wldt->stride * nblocksy;
+
+ wldt->fd = mkstemp(filename);
+ if (wldt->fd < 0) {
+ FREE(wldt);
+ return NULL;
+ }
+
+ if (ftruncate(wldt->fd, wldt->size) < 0) {
+ unlink(filename);
+ close(wldt->fd);
+ FREE(wldt);
+ return NULL;
+ }
+
+ unlink(filename);
+
+ *stride = wldt->stride;
+
+ return (struct sw_displaytarget *) wldt;
+}
+
+static struct sw_displaytarget *
+wayland_displaytarget_from_handle(struct sw_winsys *ws,
+ const struct pipe_resource *templet,
+ struct winsys_handle *whandle,
+ unsigned *stride)
+{
+ struct wayland_sw_displaytarget *wldt;
+ unsigned nblocksy;
+
+ if (!wayland_is_displaytarget_format_supported(ws, 0, templet->format))
+ return NULL;
+
+ wldt = CALLOC_STRUCT(wayland_sw_displaytarget);
+ if (!wldt)
+ return NULL;
+
+ wldt->fd = whandle->fd;
+ wldt->stride = whandle->stride;
+ wldt->width = templet->width0;
+ wldt->height = templet->height0;
+ wldt->format = templet->format;
+
+ nblocksy = util_format_get_nblocksy(wldt->format, wldt->height);
+
+ wldt->size = wldt->stride * nblocksy;
+
+ wldt->map = NULL;
+
+ *stride = wldt->stride;
+
+ return (struct sw_displaytarget *) wldt;
+}
+
+
+static boolean
+wayland_displaytarget_get_handle(struct sw_winsys *ws,
+ struct sw_displaytarget *dt,
+ struct winsys_handle *whandle)
+{
+ struct wayland_sw_displaytarget *wldt = wayland_sw_displaytarget(dt);
+
+ whandle->fd = wldt->fd;
+ whandle->stride = wldt->stride;
+
+ return TRUE;
+}
+
+static void
+wayland_destroy(struct sw_winsys *ws)
+{
+ struct wayland_sw_winsys *wayland = wayland_sw_winsys(ws);
+
+ FREE(wayland);
+}
+
+struct sw_winsys *
+wayland_create_sw_winsys(struct wl_display *display)
+{
+ struct wayland_sw_winsys *wlws;
+
+ wlws = CALLOC_STRUCT(wayland_sw_winsys);
+ if (!wlws)
+ return NULL;
+
+ wlws->display = display;
+
+ wlws->base.destroy = wayland_destroy;
+ wlws->base.is_displaytarget_format_supported =
+ wayland_is_displaytarget_format_supported;
+
+ wlws->base.displaytarget_create = wayland_displaytarget_create;
+ wlws->base.displaytarget_from_handle = wayland_displaytarget_from_handle;
+ wlws->base.displaytarget_get_handle = wayland_displaytarget_get_handle;
+ wlws->base.displaytarget_destroy = wayland_displaytarget_destroy;
+ wlws->base.displaytarget_map = wayland_displaytarget_map;
+ wlws->base.displaytarget_unmap = wayland_displaytarget_unmap;
+
+ wlws->base.displaytarget_display = wayland_displaytarget_display;
+
+ return &wlws->base;
+}
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.11
+ *
+ * Copyright (C) 2011 Benjamin Franzke <benjaminfranzke@googlemail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef WAYLAND_SW_WINSYS
+#define WAYLAND_SW_WINSYS
+
+struct sw_winsys;
+
+struct winsys_handle {
+ int fd;
+ unsigned stride;
+};
+
+struct sw_winsys *
+wayland_create_sw_winsys(struct wl_display *display);
+
+#endif /* WAYLAND_SW_WINSYS */
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
projects / mesa.git / commitdiff