qemu/hw/qxl-render.c
Gerd Hoffmann 0753609458 spice: don't call displaystate callbacks from spice server context.
This patch moves the displaystate callback calls for setting the cursor
and the mouse pointer from spice server to qemu (iothread) context.
This allows us to simplify locking.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-03 15:35:48 +02:00

226 lines
7.3 KiB
C

/*
* qxl local rendering (aka display on sdl/vnc)
*
* Copyright (C) 2010 Red Hat, Inc.
*
* maintained by Gerd Hoffmann <kraxel@redhat.com>
*
* 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 "qxl.h"
static void qxl_flip(PCIQXLDevice *qxl, QXLRect *rect)
{
uint8_t *src = qxl->guest_primary.data;
uint8_t *dst = qxl->guest_primary.flipped;
int len, i;
src += (qxl->guest_primary.surface.height - rect->top - 1) *
qxl->guest_primary.stride;
dst += rect->top * qxl->guest_primary.stride;
src += rect->left * qxl->guest_primary.bytes_pp;
dst += rect->left * qxl->guest_primary.bytes_pp;
len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp;
for (i = rect->top; i < rect->bottom; i++) {
memcpy(dst, src, len);
dst += qxl->guest_primary.stride;
src -= qxl->guest_primary.stride;
}
}
void qxl_render_resize(PCIQXLDevice *qxl)
{
QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
qxl->guest_primary.stride = sc->stride;
qxl->guest_primary.resized++;
switch (sc->format) {
case SPICE_SURFACE_FMT_16_555:
qxl->guest_primary.bytes_pp = 2;
qxl->guest_primary.bits_pp = 15;
break;
case SPICE_SURFACE_FMT_16_565:
qxl->guest_primary.bytes_pp = 2;
qxl->guest_primary.bits_pp = 16;
break;
case SPICE_SURFACE_FMT_32_xRGB:
case SPICE_SURFACE_FMT_32_ARGB:
qxl->guest_primary.bytes_pp = 4;
qxl->guest_primary.bits_pp = 32;
break;
default:
fprintf(stderr, "%s: unhandled format: %x\n", __FUNCTION__,
qxl->guest_primary.surface.format);
qxl->guest_primary.bytes_pp = 4;
qxl->guest_primary.bits_pp = 32;
break;
}
}
void qxl_render_update(PCIQXLDevice *qxl)
{
VGACommonState *vga = &qxl->vga;
QXLRect dirty[32], update;
void *ptr;
int i;
if (qxl->guest_primary.resized) {
qxl->guest_primary.resized = 0;
if (qxl->guest_primary.flipped) {
qemu_free(qxl->guest_primary.flipped);
qxl->guest_primary.flipped = NULL;
}
qemu_free_displaysurface(vga->ds);
qxl->guest_primary.data = qemu_get_ram_ptr(qxl->vga.vram_offset);
if (qxl->guest_primary.stride < 0) {
/* spice surface is upside down -> need extra buffer to flip */
qxl->guest_primary.stride = -qxl->guest_primary.stride;
qxl->guest_primary.flipped = qemu_malloc(qxl->guest_primary.surface.width *
qxl->guest_primary.stride);
ptr = qxl->guest_primary.flipped;
} else {
ptr = qxl->guest_primary.data;
}
dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d, flip %s\n",
__FUNCTION__,
qxl->guest_primary.surface.width,
qxl->guest_primary.surface.height,
qxl->guest_primary.stride,
qxl->guest_primary.bytes_pp,
qxl->guest_primary.bits_pp,
qxl->guest_primary.flipped ? "yes" : "no");
vga->ds->surface =
qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
qxl->guest_primary.surface.height,
qxl->guest_primary.bits_pp,
qxl->guest_primary.stride,
ptr);
dpy_resize(vga->ds);
}
if (!qxl->guest_primary.commands) {
return;
}
qxl->guest_primary.commands = 0;
update.left = 0;
update.right = qxl->guest_primary.surface.width;
update.top = 0;
update.bottom = qxl->guest_primary.surface.height;
memset(dirty, 0, sizeof(dirty));
qxl->ssd.worker->update_area(qxl->ssd.worker, 0, &update,
dirty, ARRAY_SIZE(dirty), 1);
for (i = 0; i < ARRAY_SIZE(dirty); i++) {
if (qemu_spice_rect_is_empty(dirty+i)) {
break;
}
if (qxl->guest_primary.flipped) {
qxl_flip(qxl, dirty+i);
}
dpy_update(vga->ds,
dirty[i].left, dirty[i].top,
dirty[i].right - dirty[i].left,
dirty[i].bottom - dirty[i].top);
}
}
static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor)
{
QEMUCursor *c;
uint8_t *image, *mask;
int size;
c = cursor_alloc(cursor->header.width, cursor->header.height);
c->hot_x = cursor->header.hot_spot_x;
c->hot_y = cursor->header.hot_spot_y;
switch (cursor->header.type) {
case SPICE_CURSOR_TYPE_ALPHA:
size = cursor->header.width * cursor->header.height * sizeof(uint32_t);
memcpy(c->data, cursor->chunk.data, size);
if (qxl->debug > 2) {
cursor_print_ascii_art(c, "qxl/alpha");
}
break;
case SPICE_CURSOR_TYPE_MONO:
mask = cursor->chunk.data;
image = mask + cursor_get_mono_bpl(c) * c->width;
cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask);
if (qxl->debug > 2) {
cursor_print_ascii_art(c, "qxl/mono");
}
break;
default:
fprintf(stderr, "%s: not implemented: type %d\n",
__FUNCTION__, cursor->header.type);
goto fail;
}
return c;
fail:
cursor_put(c);
return NULL;
}
/* called from spice server thread context only */
void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
{
QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
QXLCursor *cursor;
QEMUCursor *c;
if (!qxl->ssd.ds->mouse_set || !qxl->ssd.ds->cursor_define) {
return;
}
if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
fprintf(stderr, "%s", __FUNCTION__);
qxl_log_cmd_cursor(qxl, cmd, ext->group_id);
fprintf(stderr, "\n");
}
switch (cmd->type) {
case QXL_CURSOR_SET:
cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
if (cursor->chunk.data_size != cursor->data_size) {
fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__);
return;
}
c = qxl_cursor(qxl, cursor);
if (c == NULL) {
c = cursor_builtin_left_ptr();
}
qemu_mutex_lock(&qxl->ssd.lock);
if (qxl->ssd.cursor) {
cursor_put(qxl->ssd.cursor);
}
qxl->ssd.cursor = c;
qxl->ssd.mouse_x = cmd->u.set.position.x;
qxl->ssd.mouse_y = cmd->u.set.position.y;
qemu_mutex_unlock(&qxl->ssd.lock);
break;
case QXL_CURSOR_MOVE:
qemu_mutex_lock(&qxl->ssd.lock);
qxl->ssd.mouse_x = cmd->u.position.x;
qxl->ssd.mouse_y = cmd->u.position.y;
qemu_mutex_unlock(&qxl->ssd.lock);
break;
}
}