[Spice-devel] [PATCH 09/35] spice: simple display
alexl at redhat.com
alexl at redhat.com
Thu Sep 9 10:15:52 PDT 2010
From: Gerd Hoffmann <kraxel at redhat.com>
With that patch applied you'll actually see the guests screen in the
spice client. This does *not* bring qxl and full spice support though.
This is basically the qxl vga mode made more generic, so it plays
together with any qemu-emulated gfx card. You can display stdvga or
cirrus via spice client. You can have both vnc and spice enabled and
clients connected at the same time.
---
Makefile.objs | 2 +-
ui/qemu-spice.h | 1 +
ui/spice-display.c | 412 ++++++++++++++++++++++++++++++++++++++++++++++++++++
ui/spice-display.h | 69 +++++++++
vl.c | 7 +
5 files changed, 490 insertions(+), 1 deletions(-)
create mode 100644 ui/spice-display.c
create mode 100644 ui/spice-display.h
diff --git a/Makefile.objs b/Makefile.objs
index 20e6ad7..d09a1e4 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -88,7 +88,7 @@ common-obj-y += pflib.o
common-obj-$(CONFIG_BRLAPI) += baum.o
common-obj-$(CONFIG_POSIX) += migration-exec.o migration-unix.o migration-fd.o
-common-obj-$(CONFIG_SPICE) += ui/spice-core.o ui/spice-input.o
+common-obj-$(CONFIG_SPICE) += ui/spice-core.o ui/spice-input.o ui/spice-display.o
audio-obj-y = audio.o noaudio.o wavaudio.o mixeng.o
audio-obj-$(CONFIG_SDL) += sdlaudio.o
diff --git a/ui/qemu-spice.h b/ui/qemu-spice.h
index 175c961..063c7dc 100644
--- a/ui/qemu-spice.h
+++ b/ui/qemu-spice.h
@@ -29,6 +29,7 @@ extern int using_spice;
void qemu_spice_init(void);
void qemu_spice_input_init(void);
+void qemu_spice_display_init(DisplayState *ds);
int qemu_spice_add_interface(SpiceBaseInstance *sin);
#else /* CONFIG_SPICE */
diff --git a/ui/spice-display.c b/ui/spice-display.c
new file mode 100644
index 0000000..0bc230e
--- /dev/null
+++ b/ui/spice-display.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <pthread.h>
+
+#include "qemu-common.h"
+#include "qemu-spice.h"
+#include "qemu-timer.h"
+#include "qemu-queue.h"
+#include "monitor.h"
+#include "console.h"
+#include "sysemu.h"
+
+#include "spice-display.h"
+
+static int debug = 0;
+
+static void __attribute__((format(printf,2,3)))
+dprint(int level, const char *fmt, ...)
+{
+ va_list args;
+
+ if (level <= debug) {
+ va_start(args, fmt);
+ vfprintf(stderr, fmt, args);
+ va_end(args);
+ }
+}
+
+int qemu_spice_rect_is_empty(const QXLRect* r)
+{
+ return r->top == r->bottom || r->left == r->right;
+}
+
+void qemu_spice_rect_union(QXLRect *dest, const QXLRect *r)
+{
+ if (qemu_spice_rect_is_empty(r)) {
+ return;
+ }
+
+ if (qemu_spice_rect_is_empty(dest)) {
+ *dest = *r;
+ return;
+ }
+
+ dest->top = MIN(dest->top, r->top);
+ dest->left = MIN(dest->left, r->left);
+ dest->bottom = MAX(dest->bottom, r->bottom);
+ dest->right = MAX(dest->right, r->right);
+}
+
+/*
+ * Called from spice server thread context (via interface_get_command).
+ * We do *not* hold the global qemu mutex here, so extra care is needed
+ * when calling qemu functions. Qemu interfaces used:
+ * - pflib (is re-entrant).
+ * - qemu_malloc (underlying glibc malloc is re-entrant).
+ */
+SimpleSpiceUpdate *qemu_spice_create_update(SimpleSpiceDisplay *ssd)
+{
+ SimpleSpiceUpdate *update;
+ QXLDrawable *drawable;
+ QXLImage *image;
+ QXLCommand *cmd;
+ uint8_t *src, *dst;
+ int by, bw, bh;
+
+ if (qemu_spice_rect_is_empty(&ssd->dirty)) {
+ return NULL;
+ };
+
+ pthread_mutex_lock(&ssd->lock);
+ dprint(2, "%s: lr %d -> %d, tb -> %d -> %d\n", __FUNCTION__,
+ ssd->dirty.left, ssd->dirty.right,
+ ssd->dirty.top, ssd->dirty.bottom);
+
+ update = qemu_mallocz(sizeof(*update));
+ drawable = &update->drawable;
+ image = &update->image;
+ cmd = &update->ext.cmd;
+
+ bw = ssd->dirty.right - ssd->dirty.left;
+ bh = ssd->dirty.bottom - ssd->dirty.top;
+ update->bitmap = qemu_malloc(bw * bh * 4);
+
+ drawable->bbox = ssd->dirty;
+ drawable->clip.type = SPICE_CLIP_TYPE_NONE;
+ drawable->effect = QXL_EFFECT_OPAQUE;
+ drawable->release_info.id = (intptr_t)update;
+ drawable->type = QXL_DRAW_COPY;
+ drawable->surfaces_dest[0] = -1;
+ drawable->surfaces_dest[1] = -1;
+ drawable->surfaces_dest[2] = -1;
+
+ drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
+ drawable->u.copy.src_bitmap = (intptr_t)image;
+ drawable->u.copy.src_area.right = bw;
+ drawable->u.copy.src_area.bottom = bh;
+
+ QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ssd->unique++);
+ image->descriptor.type = SPICE_IMAGE_TYPE_BITMAP;
+ image->bitmap.flags = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
+ image->bitmap.stride = bw * 4;
+ image->descriptor.width = image->bitmap.x = bw;
+ image->descriptor.height = image->bitmap.y = bh;
+ image->bitmap.data = (intptr_t)(update->bitmap);
+ image->bitmap.palette = 0;
+ image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
+
+ if (ssd->conv == NULL) {
+ PixelFormat dst = qemu_default_pixelformat(32);
+ ssd->conv = qemu_pf_conv_get(&dst, &ssd->ds->surface->pf);
+ assert(ssd->conv);
+ }
+
+ src = ds_get_data(ssd->ds) +
+ ssd->dirty.top * ds_get_linesize(ssd->ds) +
+ ssd->dirty.left * ds_get_bytes_per_pixel(ssd->ds);
+ dst = update->bitmap;
+ for (by = 0; by < bh; by++) {
+ qemu_pf_conv_run(ssd->conv, dst, src, bw);
+ src += ds_get_linesize(ssd->ds);
+ dst += image->bitmap.stride;
+ }
+
+ cmd->type = QXL_CMD_DRAW;
+ cmd->data = (intptr_t)drawable;
+
+ memset(&ssd->dirty, 0, sizeof(ssd->dirty));
+ pthread_mutex_unlock(&ssd->lock);
+ return update;
+}
+
+/*
+ * Called from spice server thread context (via interface_release_ressource)
+ * We do *not* hold the global qemu mutex here, so extra care is needed
+ * when calling qemu functions. Qemu interfaces used:
+ * - qemu_free (underlying glibc free is re-entrant).
+ */
+void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *update)
+{
+ qemu_free(update->bitmap);
+ qemu_free(update);
+}
+
+void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd)
+{
+ QXLDevMemSlot memslot;
+
+ dprint(1, "%s:\n", __FUNCTION__);
+
+ memset(&memslot, 0, sizeof(memslot));
+ memslot.slot_group_id = MEMSLOT_GROUP_HOST;
+ memslot.virt_end = ~0;
+ ssd->worker->add_memslot(ssd->worker, &memslot);
+}
+
+void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd)
+{
+ QXLDevSurfaceCreate surface;
+
+ dprint(1, "%s: %dx%d\n", __FUNCTION__,
+ ds_get_width(ssd->ds), ds_get_height(ssd->ds));
+
+ surface.format = SPICE_SURFACE_FMT_32_xRGB;
+ surface.width = ds_get_width(ssd->ds);
+ surface.height = ds_get_height(ssd->ds);
+ surface.stride = -surface.width * 4;
+ surface.mouse_mode = 0;
+ surface.flags = 0;
+ surface.type = 0;
+ surface.mem = (intptr_t)ssd->buf;
+ surface.group_id = MEMSLOT_GROUP_HOST;
+ ssd->worker->create_primary_surface(ssd->worker, 0, &surface);
+}
+
+void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd)
+{
+ dprint(1, "%s:\n", __FUNCTION__);
+
+ ssd->worker->destroy_primary_surface(ssd->worker, 0);
+}
+
+void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason)
+{
+ SimpleSpiceDisplay *ssd = opaque;
+
+ if (running) {
+ ssd->worker->start(ssd->worker);
+ } else {
+ ssd->worker->stop(ssd->worker);
+ }
+ ssd->running = running;
+}
+
+/* display listener callbacks */
+
+void qemu_spice_display_update(SimpleSpiceDisplay *ssd,
+ int x, int y, int w, int h)
+{
+ QXLRect update_area;
+
+ dprint(2, "%s: x %d y %d w %d h %d\n", __FUNCTION__, x, y, w, h);
+ update_area.left = x,
+ update_area.right = x + w;
+ update_area.top = y;
+ update_area.bottom = y + h;
+
+ pthread_mutex_lock(&ssd->lock);
+ if (qemu_spice_rect_is_empty(&ssd->dirty)) {
+ ssd->notify++;
+ }
+ qemu_spice_rect_union(&ssd->dirty, &update_area);
+ pthread_mutex_unlock(&ssd->lock);
+}
+
+void qemu_spice_display_resize(SimpleSpiceDisplay *ssd)
+{
+ dprint(1, "%s:\n", __FUNCTION__);
+
+ pthread_mutex_lock(&ssd->lock);
+ memset(&ssd->dirty, 0, sizeof(ssd->dirty));
+ qemu_pf_conv_put(ssd->conv);
+ ssd->conv = NULL;
+ pthread_mutex_unlock(&ssd->lock);
+
+ qemu_spice_destroy_host_primary(ssd);
+ qemu_spice_create_host_primary(ssd);
+
+ pthread_mutex_lock(&ssd->lock);
+ memset(&ssd->dirty, 0, sizeof(ssd->dirty));
+ ssd->notify++;
+ pthread_mutex_unlock(&ssd->lock);
+}
+
+void qemu_spice_display_refresh(SimpleSpiceDisplay *ssd)
+{
+ dprint(3, "%s:\n", __FUNCTION__);
+ vga_hw_update();
+ if (ssd->notify) {
+ ssd->notify = 0;
+ ssd->worker->wakeup(ssd->worker);
+ dprint(2, "%s: notify\n", __FUNCTION__);
+ }
+}
+
+/* spice display interface callbacks */
+
+static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
+{
+ SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
+
+ dprint(1, "%s:\n", __FUNCTION__);
+ ssd->worker = qxl_worker;
+}
+
+static void interface_set_compression_level(QXLInstance *sin, int level)
+{
+ dprint(1, "%s:\n", __FUNCTION__);
+ /* nothing to do */
+}
+
+static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
+{
+ dprint(3, "%s:\n", __FUNCTION__);
+ /* nothing to do */
+}
+
+static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
+{
+ SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
+
+ info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
+ info->memslot_id_bits = MEMSLOT_SLOT_BITS;
+ info->num_memslots = NUM_MEMSLOTS;
+ info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
+ info->internal_groupslot_id = 0;
+ info->qxl_ram_size = ssd->bufsize;
+ info->n_surfaces = NUM_SURFACES;
+}
+
+static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
+{
+ SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
+ SimpleSpiceUpdate *update;
+
+ dprint(3, "%s:\n", __FUNCTION__);
+ update = qemu_spice_create_update(ssd);
+ if (update == NULL) {
+ return false;
+ }
+ *ext = update->ext;
+ return true;
+}
+
+static int interface_req_cmd_notification(QXLInstance *sin)
+{
+ dprint(1, "%s:\n", __FUNCTION__);
+ return 1;
+}
+
+static void interface_release_resource(QXLInstance *sin,
+ struct QXLReleaseInfoExt ext)
+{
+ SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl);
+ uintptr_t id;
+
+ dprint(2, "%s:\n", __FUNCTION__);
+ id = ext.info->id;
+ qemu_spice_destroy_update(ssd, (void*)id);
+}
+
+static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
+{
+ dprint(3, "%s:\n", __FUNCTION__);
+ return false;
+}
+
+static int interface_req_cursor_notification(QXLInstance *sin)
+{
+ dprint(1, "%s:\n", __FUNCTION__);
+ return 1;
+}
+
+static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
+{
+ fprintf(stderr, "%s: abort()\n", __FUNCTION__);
+ abort();
+}
+
+static int interface_flush_resources(QXLInstance *sin)
+{
+ fprintf(stderr, "%s: abort()\n", __FUNCTION__);
+ abort();
+ return 0;
+}
+
+static const QXLInterface dpy_interface = {
+ .base.type = SPICE_INTERFACE_QXL,
+ .base.description = "qemu simple display",
+ .base.major_version = SPICE_INTERFACE_QXL_MAJOR,
+ .base.minor_version = SPICE_INTERFACE_QXL_MINOR,
+
+ .attache_worker = interface_attach_worker,
+ .set_compression_level = interface_set_compression_level,
+ .set_mm_time = interface_set_mm_time,
+ .get_init_info = interface_get_init_info,
+
+ /* the callbacks below are called from spice server thread context */
+ .get_command = interface_get_command,
+ .req_cmd_notification = interface_req_cmd_notification,
+ .release_resource = interface_release_resource,
+ .get_cursor_command = interface_get_cursor_command,
+ .req_cursor_notification = interface_req_cursor_notification,
+ .notify_update = interface_notify_update,
+ .flush_resources = interface_flush_resources,
+};
+
+static SimpleSpiceDisplay sdpy;
+
+static void display_update(struct DisplayState *ds, int x, int y, int w, int h)
+{
+ qemu_spice_display_update(&sdpy, x, y, w, h);
+}
+
+static void display_resize(struct DisplayState *ds)
+{
+ qemu_spice_display_resize(&sdpy);
+}
+
+static void display_refresh(struct DisplayState *ds)
+{
+ qemu_spice_display_refresh(&sdpy);
+}
+
+static DisplayChangeListener display_listener = {
+ .dpy_update = display_update,
+ .dpy_resize = display_resize,
+ .dpy_refresh = display_refresh,
+};
+
+void qemu_spice_display_init(DisplayState *ds)
+{
+ assert(sdpy.ds == NULL);
+ sdpy.ds = ds;
+ sdpy.bufsize = (16 * 1024 * 1024);
+ sdpy.buf = qemu_malloc(sdpy.bufsize);
+ pthread_mutex_init(&sdpy.lock, NULL);
+ register_displaychangelistener(ds, &display_listener);
+
+ sdpy.qxl.base.sif = &dpy_interface.base;
+ qemu_spice_add_interface(&sdpy.qxl.base);
+ assert(sdpy.worker);
+
+ qemu_add_vm_change_state_handler(qemu_spice_vm_change_state_handler, &sdpy);
+ qemu_spice_create_host_memslot(&sdpy);
+ qemu_spice_create_host_primary(&sdpy);
+}
diff --git a/ui/spice-display.h b/ui/spice-display.h
new file mode 100644
index 0000000..e17671c
--- /dev/null
+++ b/ui/spice-display.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <spice/ipc_ring.h>
+#include <spice/enums.h>
+#include <spice/qxl_dev.h>
+
+#include "pflib.h"
+
+#define NUM_MEMSLOTS 8
+#define MEMSLOT_GENERATION_BITS 8
+#define MEMSLOT_SLOT_BITS 8
+
+#define MEMSLOT_GROUP_HOST 0
+#define MEMSLOT_GROUP_GUEST 1
+#define NUM_MEMSLOTS_GROUPS 2
+
+#define NUM_SURFACES 1024
+
+typedef struct SimpleSpiceDisplay {
+ DisplayState *ds;
+ void *buf;
+ int bufsize;
+ QXLWorker *worker;
+ QXLInstance qxl;
+ uint32_t unique;
+ QemuPfConv *conv;
+
+ pthread_mutex_t lock;
+ QXLRect dirty;
+ int notify;
+ int running;
+} SimpleSpiceDisplay;
+
+typedef struct SimpleSpiceUpdate {
+ QXLDrawable drawable;
+ QXLImage image;
+ QXLCommandExt ext;
+ uint8_t *bitmap;
+} SimpleSpiceUpdate;
+
+int qemu_spice_rect_is_empty(const QXLRect* r);
+void qemu_spice_rect_union(QXLRect *dest, const QXLRect *r);
+
+SimpleSpiceUpdate *qemu_spice_create_update(SimpleSpiceDisplay *sdpy);
+void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *update);
+void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd);
+void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd);
+void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd);
+void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason);
+
+void qemu_spice_display_update(SimpleSpiceDisplay *ssd,
+ int x, int y, int w, int h);
+void qemu_spice_display_resize(SimpleSpiceDisplay *ssd);
+void qemu_spice_display_refresh(SimpleSpiceDisplay *ssd);
diff --git a/vl.c b/vl.c
index cad91b8..65f6b23 100644
--- a/vl.c
+++ b/vl.c
@@ -2908,6 +2908,8 @@ int main(int argc, char **argv, char **envp)
/* just use the first displaystate for the moment */
ds = get_displaystate();
+ if (using_spice)
+ display_remote++;
if (display_type == DT_DEFAULT && !display_remote) {
#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
display_type = DT_SDL;
@@ -2950,6 +2952,11 @@ int main(int argc, char **argv, char **envp)
printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
}
}
+#ifdef CONFIG_SPICE
+ if (using_spice) {
+ qemu_spice_display_init(ds);
+ }
+#endif
/* display setup */
dpy_resize(ds);
--
1.7.0.1
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