[qemu.git] / hw / qxl-render.c

/*
 * qxl local rendering (aka display on sdl/vnc)
 *
 * Copyright (C) 2010 Red Hat, Inc.
 *
 * maintained by Gerd Hoffmann <[email protected]>
 *
 * 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;
    uint8_t *dst = qxl->vga.ds->surface->data;
    int len, i;

    if (qxl->guest_primary.qxl_stride > 0) {
        return;
    }
    if (!qxl->guest_primary.data) {
        dprint(qxl, 1, "%s: initializing guest_primary.data\n", __func__);
        qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
    }
    dprint(qxl, 1, "%s: stride %d, [%d, %d, %d, %d]\n", __func__,
            qxl->guest_primary.qxl_stride,
            rect->left, rect->right, rect->top, rect->bottom);
    src = qxl->guest_primary.data;
    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;
    }
}

static void qxl_set_rect_to_surface(PCIQXLDevice *qxl, QXLRect *area)
{
    area->left   = 0;
    area->right  = qxl->guest_primary.surface.width;
    area->top    = 0;
    area->bottom = qxl->guest_primary.surface.height;
}

static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
{
    VGACommonState *vga = &qxl->vga;
    int i;
    DisplaySurface *surface = vga->ds->surface;

    if (qxl->guest_primary.resized) {
        qxl->guest_primary.resized = 0;
        qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
        qxl_set_rect_to_surface(qxl, &qxl->dirty[0]);
        qxl->num_dirty_rects = 1;
        dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d\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);
    }
    if (surface->width != qxl->guest_primary.surface.width ||
        surface->height != qxl->guest_primary.surface.height) {
        if (qxl->guest_primary.qxl_stride > 0) {
            dprint(qxl, 1, "%s: using guest_primary for displaysurface\n",
                   __func__);
            qemu_free_displaysurface(vga->ds);
            qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
                                            qxl->guest_primary.surface.height,
                                            qxl->guest_primary.bits_pp,
                                            qxl->guest_primary.abs_stride,
                                            qxl->guest_primary.data);
        } else {
            dprint(qxl, 1, "%s: resizing displaysurface to guest_primary\n",
                   __func__);
            qemu_resize_displaysurface(vga->ds,
                    qxl->guest_primary.surface.width,
                    qxl->guest_primary.surface.height);
        }
    }
    for (i = 0; i < qxl->num_dirty_rects; i++) {
        if (qemu_spice_rect_is_empty(qxl->dirty+i)) {
            break;
        }
        qxl_flip(qxl, qxl->dirty+i);
        dpy_update(vga->ds,
                   qxl->dirty[i].left, qxl->dirty[i].top,
                   qxl->dirty[i].right - qxl->dirty[i].left,
                   qxl->dirty[i].bottom - qxl->dirty[i].top);
    }
    qxl->num_dirty_rects = 0;
}

/*
 * use ssd.lock to protect render_update_cookie_num.
 * qxl_render_update is called by io thread or vcpu thread, and the completion
 * callbacks are called by spice_server thread, defering to bh called from the
 * io thread.
 */
void qxl_render_update(PCIQXLDevice *qxl)
{
    QXLCookie *cookie;

    qemu_mutex_lock(&qxl->ssd.lock);

    if (!runstate_is_running() || !qxl->guest_primary.commands) {
        qxl_render_update_area_unlocked(qxl);
        qemu_mutex_unlock(&qxl->ssd.lock);
        return;
    }

    qxl->guest_primary.commands = 0;
    qxl->render_update_cookie_num++;
    qemu_mutex_unlock(&qxl->ssd.lock);
    cookie = qxl_cookie_new(QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
                            0);
    qxl_set_rect_to_surface(qxl, &cookie->u.render.area);
    qxl_spice_update_area(qxl, 0, &cookie->u.render.area, NULL,
                          0, 1 /* clear_dirty_region */, QXL_ASYNC, cookie);
}

void qxl_render_update_area_bh(void *opaque)
{
    PCIQXLDevice *qxl = opaque;

    qemu_mutex_lock(&qxl->ssd.lock);
    qxl_render_update_area_unlocked(qxl);
    qemu_mutex_unlock(&qxl->ssd.lock);
}

void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie)
{
    qemu_mutex_lock(&qxl->ssd.lock);
    qemu_bh_schedule(qxl->update_area_bh);
    qxl->render_update_cookie_num--;
    qemu_mutex_unlock(&qxl->ssd.lock);
    g_free(cookie);
}

static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor)
{
    QEMUCursor *c;
    uint8_t *image, *mask;
    size_t 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;
    }
}
Commit	Line	Data
a19cbfb3 GH	1	/*
	2	* qxl local rendering (aka display on sdl/vnc)
	3	*
	4	* Copyright (C) 2010 Red Hat, Inc.
	5	*
	6	* maintained by Gerd Hoffmann <[email protected]>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 or
	11	* (at your option) version 3 of the License.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, see <http://www.gnu.org/licenses/>.
	20	*/
	21
	22	#include "qxl.h"
	23
	24	static void qxl_flip(PCIQXLDevice qxl, QXLRect rect)
	25	{
4c19ebb5 AL	26	uint8_t *src;
4c19ebb5 AL	27	uint8_t *dst = qxl->vga.ds->surface->data;
a19cbfb3 GH	28	int len, i;
a19cbfb3 GH	29
4c19ebb5 AL	30	if (qxl->guest_primary.qxl_stride > 0) {
	31	return;
	32	}
	33	if (!qxl->guest_primary.data) {
	34	dprint(qxl, 1, "%s: initializing guest_primary.data\n", __func__);
	35	qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
	36	}
	37	dprint(qxl, 1, "%s: stride %d, [%d, %d, %d, %d]\n", __func__,
	38	qxl->guest_primary.qxl_stride,
	39	rect->left, rect->right, rect->top, rect->bottom);
	40	src = qxl->guest_primary.data;
a19cbfb3	41	src += (qxl->guest_primary.surface.height - rect->top - 1) *
0e2487bd GH	42	qxl->guest_primary.abs_stride;
0e2487bd GH	43	dst += rect->top * qxl->guest_primary.abs_stride;
a19cbfb3 GH	44	src += rect->left * qxl->guest_primary.bytes_pp;
	45	dst += rect->left * qxl->guest_primary.bytes_pp;
	46	len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp;
	47
	48	for (i = rect->top; i < rect->bottom; i++) {
	49	memcpy(dst, src, len);
0e2487bd GH	50	dst += qxl->guest_primary.abs_stride;
0e2487bd GH	51	src -= qxl->guest_primary.abs_stride;
a19cbfb3 GH	52	}
	53	}
	54
	55	void qxl_render_resize(PCIQXLDevice *qxl)
	56	{
	57	QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
	58
0e2487bd GH	59	qxl->guest_primary.qxl_stride = sc->stride;
0e2487bd GH	60	qxl->guest_primary.abs_stride = abs(sc->stride);
a19cbfb3 GH	61	qxl->guest_primary.resized++;
	62	switch (sc->format) {
	63	case SPICE_SURFACE_FMT_16_555:
	64	qxl->guest_primary.bytes_pp = 2;
	65	qxl->guest_primary.bits_pp = 15;
	66	break;
	67	case SPICE_SURFACE_FMT_16_565:
	68	qxl->guest_primary.bytes_pp = 2;
	69	qxl->guest_primary.bits_pp = 16;
	70	break;
	71	case SPICE_SURFACE_FMT_32_xRGB:
	72	case SPICE_SURFACE_FMT_32_ARGB:
	73	qxl->guest_primary.bytes_pp = 4;
	74	qxl->guest_primary.bits_pp = 32;
	75	break;
	76	default:
	77	fprintf(stderr, "%s: unhandled format: %x\n", __FUNCTION__,
	78	qxl->guest_primary.surface.format);
	79	qxl->guest_primary.bytes_pp = 4;
	80	qxl->guest_primary.bits_pp = 32;
	81	break;
	82	}
	83	}
	84
81fb6f15 AL	85	static void qxl_set_rect_to_surface(PCIQXLDevice qxl, QXLRect area)
	86	{
	87	area->left = 0;
	88	area->right = qxl->guest_primary.surface.width;
	89	area->top = 0;
	90	area->bottom = qxl->guest_primary.surface.height;
	91	}
	92
	93	static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
a19cbfb3 GH	94	{
a19cbfb3 GH	95	VGACommonState *vga = &qxl->vga;
81fb6f15	96	int i;
4c19ebb5	97	DisplaySurface *surface = vga->ds->surface;
a19cbfb3 GH	98
	99	if (qxl->guest_primary.resized) {
	100	qxl->guest_primary.resized = 0;
b1950430	101	qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
81fb6f15 AL	102	qxl_set_rect_to_surface(qxl, &qxl->dirty[0]);
81fb6f15 AL	103	qxl->num_dirty_rects = 1;
4c19ebb5	104	dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d\n",
a19cbfb3 GH	105	__FUNCTION__,
	106	qxl->guest_primary.surface.width,
	107	qxl->guest_primary.surface.height,
0e2487bd	108	qxl->guest_primary.qxl_stride,
a19cbfb3	109	qxl->guest_primary.bytes_pp,
4c19ebb5 AL	110	qxl->guest_primary.bits_pp);
	111	}
	112	if (surface->width != qxl->guest_primary.surface.width \|\|
	113	surface->height != qxl->guest_primary.surface.height) {
4c19ebb5	114	if (qxl->guest_primary.qxl_stride > 0) {
81fb6f15 AL	115	dprint(qxl, 1, "%s: using guest_primary for displaysurface\n",
81fb6f15 AL	116	__func__);
4c19ebb5	117	qemu_free_displaysurface(vga->ds);
a19cbfb3 GH	118	qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
	119	qxl->guest_primary.surface.height,
	120	qxl->guest_primary.bits_pp,
0e2487bd	121	qxl->guest_primary.abs_stride,
4c19ebb5 AL	122	qxl->guest_primary.data);
4c19ebb5 AL	123	} else {
81fb6f15 AL	124	dprint(qxl, 1, "%s: resizing displaysurface to guest_primary\n",
81fb6f15 AL	125	__func__);
4c19ebb5 AL	126	qemu_resize_displaysurface(vga->ds,
	127	qxl->guest_primary.surface.width,
	128	qxl->guest_primary.surface.height);
	129	}
a19cbfb3	130	}
81fb6f15 AL	131	for (i = 0; i < qxl->num_dirty_rects; i++) {
81fb6f15 AL	132	if (qemu_spice_rect_is_empty(qxl->dirty+i)) {
a19cbfb3 GH	133	break;
a19cbfb3 GH	134	}
81fb6f15	135	qxl_flip(qxl, qxl->dirty+i);
a19cbfb3	136	dpy_update(vga->ds,
81fb6f15 AL	137	qxl->dirty[i].left, qxl->dirty[i].top,
	138	qxl->dirty[i].right - qxl->dirty[i].left,
	139	qxl->dirty[i].bottom - qxl->dirty[i].top);
a19cbfb3	140	}
81fb6f15 AL	141	qxl->num_dirty_rects = 0;
	142	}
	143
	144	/*
	145	* use ssd.lock to protect render_update_cookie_num.
	146	* qxl_render_update is called by io thread or vcpu thread, and the completion
	147	* callbacks are called by spice_server thread, defering to bh called from the
	148	* io thread.
	149	*/
	150	void qxl_render_update(PCIQXLDevice *qxl)
	151	{
	152	QXLCookie *cookie;
	153
	154	qemu_mutex_lock(&qxl->ssd.lock);
	155
	156	if (!runstate_is_running() \|\| !qxl->guest_primary.commands) {
	157	qxl_render_update_area_unlocked(qxl);
	158	qemu_mutex_unlock(&qxl->ssd.lock);
	159	return;
	160	}
	161
	162	qxl->guest_primary.commands = 0;
	163	qxl->render_update_cookie_num++;
	164	qemu_mutex_unlock(&qxl->ssd.lock);
	165	cookie = qxl_cookie_new(QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
	166	0);
	167	qxl_set_rect_to_surface(qxl, &cookie->u.render.area);
	168	qxl_spice_update_area(qxl, 0, &cookie->u.render.area, NULL,
	169	0, 1 /* clear_dirty_region */, QXL_ASYNC, cookie);
	170	}
	171
	172	void qxl_render_update_area_bh(void *opaque)
	173	{
	174	PCIQXLDevice *qxl = opaque;
	175
	176	qemu_mutex_lock(&qxl->ssd.lock);
	177	qxl_render_update_area_unlocked(qxl);
	178	qemu_mutex_unlock(&qxl->ssd.lock);
	179	}
	180
	181	void qxl_render_update_area_done(PCIQXLDevice qxl, QXLCookie cookie)
	182	{
	183	qemu_mutex_lock(&qxl->ssd.lock);
	184	qemu_bh_schedule(qxl->update_area_bh);
	185	qxl->render_update_cookie_num--;
	186	qemu_mutex_unlock(&qxl->ssd.lock);
	187	g_free(cookie);
a19cbfb3 GH	188	}
	189
	190	static QEMUCursor qxl_cursor(PCIQXLDevice qxl, QXLCursor *cursor)
	191	{
	192	QEMUCursor *c;
	193	uint8_t image, mask;
66d3f196	194	size_t size;
a19cbfb3 GH	195
	196	c = cursor_alloc(cursor->header.width, cursor->header.height);
	197	c->hot_x = cursor->header.hot_spot_x;
	198	c->hot_y = cursor->header.hot_spot_y;
	199	switch (cursor->header.type) {
	200	case SPICE_CURSOR_TYPE_ALPHA:
	201	size = cursor->header.width * cursor->header.height * sizeof(uint32_t);
	202	memcpy(c->data, cursor->chunk.data, size);
	203	if (qxl->debug > 2) {
	204	cursor_print_ascii_art(c, "qxl/alpha");
	205	}
	206	break;
	207	case SPICE_CURSOR_TYPE_MONO:
	208	mask = cursor->chunk.data;
	209	image = mask + cursor_get_mono_bpl(c) * c->width;
	210	cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask);
	211	if (qxl->debug > 2) {
	212	cursor_print_ascii_art(c, "qxl/mono");
	213	}
	214	break;
	215	default:
	216	fprintf(stderr, "%s: not implemented: type %d\n",
	217	__FUNCTION__, cursor->header.type);
	218	goto fail;
	219	}
	220	return c;
	221
	222	fail:
	223	cursor_put(c);
	224	return NULL;
	225	}
	226
	227
	228	/* called from spice server thread context only */
	229	void qxl_render_cursor(PCIQXLDevice qxl, QXLCommandExt ext)
	230	{
	231	QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
	232	QXLCursor *cursor;
	233	QEMUCursor *c;
a19cbfb3 GH	234
	235	if (!qxl->ssd.ds->mouse_set \|\| !qxl->ssd.ds->cursor_define) {
	236	return;
	237	}
	238
	239	if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
	240	fprintf(stderr, "%s", __FUNCTION__);
	241	qxl_log_cmd_cursor(qxl, cmd, ext->group_id);
	242	fprintf(stderr, "\n");
	243	}
	244	switch (cmd->type) {
	245	case QXL_CURSOR_SET:
a19cbfb3 GH	246	cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
	247	if (cursor->chunk.data_size != cursor->data_size) {
	248	fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__);
	249	return;
	250	}
	251	c = qxl_cursor(qxl, cursor);
	252	if (c == NULL) {
	253	c = cursor_builtin_left_ptr();
	254	}
07536094 GH	255	qemu_mutex_lock(&qxl->ssd.lock);
	256	if (qxl->ssd.cursor) {
	257	cursor_put(qxl->ssd.cursor);
	258	}
	259	qxl->ssd.cursor = c;
	260	qxl->ssd.mouse_x = cmd->u.set.position.x;
	261	qxl->ssd.mouse_y = cmd->u.set.position.y;
	262	qemu_mutex_unlock(&qxl->ssd.lock);
a19cbfb3 GH	263	break;
a19cbfb3 GH	264	case QXL_CURSOR_MOVE:
07536094 GH	265	qemu_mutex_lock(&qxl->ssd.lock);
	266	qxl->ssd.mouse_x = cmd->u.position.x;
	267	qxl->ssd.mouse_y = cmd->u.position.y;
	268	qemu_mutex_unlock(&qxl->ssd.lock);
a19cbfb3 GH	269	break;
	270	}
	271	}