--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 <fcntl.h>
+
+#include <X11/Xlib-xcb.h>
+#include <xcb/dri3.h>
+#include <xcb/present.h>
+
+#include "loader.h"
+
+#include "pipe/p_screen.h"
+#include "pipe-loader/pipe_loader.h"
+
+#include "util/u_memory.h"
+#include "vl/vl_winsys.h"
+
+struct vl_dri3_screen
+{
+ struct vl_screen base;
+ xcb_connection_t *conn;
+ xcb_drawable_t drawable;
+};
+
+static void
+vl_dri3_flush_frontbuffer(struct pipe_screen *screen,
+ struct pipe_resource *resource,
+ unsigned level, unsigned layer,
+ void *context_private, struct pipe_box *sub_box)
+{
+ /* TODO */
+ return;
+}
+
+static struct pipe_resource *
+vl_dri3_screen_texture_from_drawable(struct vl_screen *vscreen, void *drawable)
+{
+ /* TODO */
+ return NULL;
+}
+
+static struct u_rect *
+vl_dri3_screen_get_dirty_area(struct vl_screen *vscreen)
+{
+ /* TODO */
+ return NULL;
+}
+
+static uint64_t
+vl_dri3_screen_get_timestamp(struct vl_screen *vscreen, void *drawable)
+{
+ /* TODO */
+ return 0;
+}
+
+static void
+vl_dri3_screen_set_next_timestamp(struct vl_screen *vscreen, uint64_t stamp)
+{
+ /* TODO */
+ return;
+}
+
+static void *
+vl_dri3_screen_get_private(struct vl_screen *vscreen)
+{
+ return vscreen;
+}
+
+static void
+vl_dri3_screen_destroy(struct vl_screen *vscreen)
+{
+ struct vl_dri3_screen *scrn = (struct vl_dri3_screen *)vscreen;
+
+ assert(vscreen);
+
+ scrn->base.pscreen->destroy(scrn->base.pscreen);
+ pipe_loader_release(&scrn->base.dev, 1);
+ FREE(scrn);
+
+ return;
+}
+
+struct vl_screen *
+vl_dri3_screen_create(Display *display, int screen)
+{
+ struct vl_dri3_screen *scrn;
+ const xcb_query_extension_reply_t *extension;
+ xcb_dri3_open_cookie_t open_cookie;
+ xcb_dri3_open_reply_t *open_reply;
+ xcb_get_geometry_cookie_t geom_cookie;
+ xcb_get_geometry_reply_t *geom_reply;
+ int is_different_gpu;
+ int fd;
+
+ assert(display);
+
+ scrn = CALLOC_STRUCT(vl_dri3_screen);
+ if (!scrn)
+ return NULL;
+
+ scrn->conn = XGetXCBConnection(display);
+ if (!scrn->conn)
+ goto free_screen;
+
+ xcb_prefetch_extension_data(scrn->conn , &xcb_dri3_id);
+ xcb_prefetch_extension_data(scrn->conn, &xcb_present_id);
+ extension = xcb_get_extension_data(scrn->conn, &xcb_dri3_id);
+ if (!(extension && extension->present))
+ goto free_screen;
+ extension = xcb_get_extension_data(scrn->conn, &xcb_present_id);
+ if (!(extension && extension->present))
+ goto free_screen;
+
+ open_cookie = xcb_dri3_open(scrn->conn, RootWindow(display, screen), None);
+ open_reply = xcb_dri3_open_reply(scrn->conn, open_cookie, NULL);
+ if (!open_reply)
+ goto free_screen;
+ if (open_reply->nfd != 1) {
+ free(open_reply);
+ goto free_screen;
+ }
+
+ fd = xcb_dri3_open_reply_fds(scrn->conn, open_reply)[0];
+ if (fd < 0) {
+ free(open_reply);
+ goto free_screen;
+ }
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+ free(open_reply);
+
+ fd = loader_get_user_preferred_fd(fd, &is_different_gpu);
+ /* TODO support different GPU */
+ if (is_different_gpu)
+ goto close_fd;
+
+ geom_cookie = xcb_get_geometry(scrn->conn, RootWindow(display, screen));
+ geom_reply = xcb_get_geometry_reply(scrn->conn, geom_cookie, NULL);
+ if (!geom_reply)
+ goto close_fd;
+ /* TODO support depth other than 24 */
+ if (geom_reply->depth != 24) {
+ free(geom_reply);
+ goto close_fd;
+ }
+ free(geom_reply);
+
+ if (pipe_loader_drm_probe_fd(&scrn->base.dev, fd))
+ scrn->base.pscreen = pipe_loader_create_screen(scrn->base.dev);
+
+ if (!scrn->base.pscreen)
+ goto release_pipe;
+
+ scrn->base.destroy = vl_dri3_screen_destroy;
+ scrn->base.texture_from_drawable = vl_dri3_screen_texture_from_drawable;
+ scrn->base.get_dirty_area = vl_dri3_screen_get_dirty_area;
+ scrn->base.get_timestamp = vl_dri3_screen_get_timestamp;
+ scrn->base.set_next_timestamp = vl_dri3_screen_set_next_timestamp;
+ scrn->base.get_private = vl_dri3_screen_get_private;
+ scrn->base.pscreen->flush_frontbuffer = vl_dri3_flush_frontbuffer;
+
+ return &scrn->base;
+
+release_pipe:
+ if (scrn->base.dev) {
+ pipe_loader_release(&scrn->base.dev, 1);
+ fd = -1;
+ }
+close_fd:
+ if (fd != -1)
+ close(fd);
+free_screen:
+ FREE(scrn);
+ return NULL;
+}
projects / platform / upstream / mesa.git / commitdiff