Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
branch: release-201301…
Fetching contributors…

Cannot retrieve contributors at this time

413 lines (342 sloc) 11.928 kb
/*
* 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 GCC_FMT_ATTR(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 must aquire the global qemu mutex here to make sure the
* DisplayState (+DisplaySurface) we are accessing doesn't change
* underneath us.
*/
SimpleSpiceUpdate *qemu_spice_create_update(SimpleSpiceDisplay *ssd)
{
SimpleSpiceUpdate *update;
QXLDrawable *drawable;
QXLImage *image;
QXLCommand *cmd;
uint8_t *src, *dst;
int by, bw, bh;
qemu_mutex_lock_iothread();
if (qemu_spice_rect_is_empty(&ssd->dirty)) {
qemu_mutex_unlock_iothread();
return NULL;
};
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));
qemu_mutex_unlock_iothread();
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 = true;
surface.flags = 0;
surface.type = 0;
surface.mem = (intptr_t)ssd->buf;
surface.group_id = MEMSLOT_GROUP_HOST;
qemu_mutex_unlock_iothread();
ssd->worker->create_primary_surface(ssd->worker, 0, &surface);
qemu_mutex_lock_iothread();
}
void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd)
{
dprint(1, "%s:\n", __FUNCTION__);
qemu_mutex_unlock_iothread();
ssd->worker->destroy_primary_surface(ssd->worker, 0);
qemu_mutex_lock_iothread();
}
void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason)
{
SimpleSpiceDisplay *ssd = opaque;
if (running) {
ssd->worker->start(ssd->worker);
} else {
qemu_mutex_unlock_iothread();
ssd->worker->stop(ssd->worker);
qemu_mutex_lock_iothread();
}
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;
if (qemu_spice_rect_is_empty(&ssd->dirty)) {
ssd->notify++;
}
qemu_spice_rect_union(&ssd->dirty, &update_area);
}
void qemu_spice_display_resize(SimpleSpiceDisplay *ssd)
{
dprint(1, "%s:\n", __FUNCTION__);
memset(&ssd->dirty, 0, sizeof(ssd->dirty));
qemu_pf_conv_put(ssd->conv);
ssd->conv = NULL;
qemu_spice_destroy_host_primary(ssd);
qemu_spice_create_host_primary(ssd);
memset(&ssd->dirty, 0, sizeof(ssd->dirty));
ssd->notify++;
}
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);
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);
}
Jump to Line
Something went wrong with that request. Please try again.