diff options
Diffstat (limited to 'ui/spice-display.c')
| -rw-r--r-- | ui/spice-display.c | 412 |
1 files changed, 412 insertions, 0 deletions
diff --git a/ui/spice-display.c b/ui/spice-display.c new file mode 100644 index 0000000000..0bc230eeee --- /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); +} |