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/*
* 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.abs_stride;
dst += rect->top * qxl->guest_primary.abs_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.abs_stride;
src -= qxl->guest_primary.abs_stride;
}
}
void qxl_render_resize(PCIQXLDevice *qxl)
{
QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
qxl->guest_primary.qxl_stride = sc->stride;
qxl->guest_primary.abs_stride = abs(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, redraw = 0;
if (!is_buffer_shared(vga->ds->surface)) {
dprint(qxl, 1, "%s: restoring shared displaysurface\n", __func__);
qxl->guest_primary.resized++;
qxl->guest_primary.commands++;
redraw = 1;
}
if (qxl->guest_primary.resized) {
qxl->guest_primary.resized = 0;
if (qxl->guest_primary.flipped) {
g_free(qxl->guest_primary.flipped);
qxl->guest_primary.flipped = NULL;
}
qemu_free_displaysurface(vga->ds);
qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
if (qxl->guest_primary.qxl_stride < 0) {
/* spice surface is upside down -> need extra buffer to flip */
qxl->guest_primary.flipped =
g_malloc(qxl->guest_primary.surface.width *
qxl->guest_primary.abs_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.qxl_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.abs_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_spice_update_area(qxl, 0, &update,
dirty, ARRAY_SIZE(dirty), 1, QXL_SYNC);
if (redraw) {
memset(dirty, 0, sizeof(dirty));
dirty[0] = update;
}
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;
}
}
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