hw/arm/bcm2836: Only provide "enabled-cpus" property to multicore SoCs
[qemu.git] / hw / display / qxl-render.c
1 /*
2 * qxl local rendering (aka display on sdl/vnc)
3 *
4 * Copyright (C) 2010 Red Hat, Inc.
5 *
6 * maintained by Gerd Hoffmann <kraxel@redhat.com>
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 "qemu/osdep.h"
23 #include "qxl.h"
24 #include "sysemu/runstate.h"
25 #include "trace.h"
26
27 static void qxl_blit(PCIQXLDevice *qxl, QXLRect *rect)
28 {
29 DisplaySurface *surface = qemu_console_surface(qxl->vga.con);
30 uint8_t *dst = surface_data(surface);
31 uint8_t *src;
32 int len, i;
33
34 if (is_buffer_shared(surface)) {
35 return;
36 }
37 trace_qxl_render_blit(qxl->guest_primary.qxl_stride,
38 rect->left, rect->right, rect->top, rect->bottom);
39 src = qxl->guest_primary.data;
40 if (qxl->guest_primary.qxl_stride < 0) {
41 /* qxl surface is upside down, walk src scanlines
42 * in reverse order to flip it */
43 src += (qxl->guest_primary.surface.height - rect->top - 1) *
44 qxl->guest_primary.abs_stride;
45 } else {
46 src += rect->top * qxl->guest_primary.abs_stride;
47 }
48 dst += rect->top * qxl->guest_primary.abs_stride;
49 src += rect->left * qxl->guest_primary.bytes_pp;
50 dst += rect->left * qxl->guest_primary.bytes_pp;
51 len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp;
52
53 for (i = rect->top; i < rect->bottom; i++) {
54 memcpy(dst, src, len);
55 dst += qxl->guest_primary.abs_stride;
56 src += qxl->guest_primary.qxl_stride;
57 }
58 }
59
60 void qxl_render_resize(PCIQXLDevice *qxl)
61 {
62 QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
63
64 qxl->guest_primary.qxl_stride = sc->stride;
65 qxl->guest_primary.abs_stride = abs(sc->stride);
66 qxl->guest_primary.resized++;
67 switch (sc->format) {
68 case SPICE_SURFACE_FMT_16_555:
69 qxl->guest_primary.bytes_pp = 2;
70 qxl->guest_primary.bits_pp = 15;
71 break;
72 case SPICE_SURFACE_FMT_16_565:
73 qxl->guest_primary.bytes_pp = 2;
74 qxl->guest_primary.bits_pp = 16;
75 break;
76 case SPICE_SURFACE_FMT_32_xRGB:
77 case SPICE_SURFACE_FMT_32_ARGB:
78 qxl->guest_primary.bytes_pp = 4;
79 qxl->guest_primary.bits_pp = 32;
80 break;
81 default:
82 fprintf(stderr, "%s: unhandled format: %x\n", __func__,
83 qxl->guest_primary.surface.format);
84 qxl->guest_primary.bytes_pp = 4;
85 qxl->guest_primary.bits_pp = 32;
86 break;
87 }
88 }
89
90 static void qxl_set_rect_to_surface(PCIQXLDevice *qxl, QXLRect *area)
91 {
92 area->left = 0;
93 area->right = qxl->guest_primary.surface.width;
94 area->top = 0;
95 area->bottom = qxl->guest_primary.surface.height;
96 }
97
98 static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
99 {
100 VGACommonState *vga = &qxl->vga;
101 DisplaySurface *surface;
102 int width = qxl->guest_head0_width ?: qxl->guest_primary.surface.width;
103 int height = qxl->guest_head0_height ?: qxl->guest_primary.surface.height;
104 int i;
105
106 if (qxl->guest_primary.resized) {
107 qxl->guest_primary.resized = 0;
108 qxl->guest_primary.data = qxl_phys2virt(qxl,
109 qxl->guest_primary.surface.mem,
110 MEMSLOT_GROUP_GUEST);
111 if (!qxl->guest_primary.data) {
112 goto end;
113 }
114 qxl_set_rect_to_surface(qxl, &qxl->dirty[0]);
115 qxl->num_dirty_rects = 1;
116 trace_qxl_render_guest_primary_resized(
117 width,
118 height,
119 qxl->guest_primary.qxl_stride,
120 qxl->guest_primary.bytes_pp,
121 qxl->guest_primary.bits_pp);
122 if (qxl->guest_primary.qxl_stride > 0) {
123 pixman_format_code_t format =
124 qemu_default_pixman_format(qxl->guest_primary.bits_pp, true);
125 surface = qemu_create_displaysurface_from
126 (width,
127 height,
128 format,
129 qxl->guest_primary.abs_stride,
130 qxl->guest_primary.data);
131 } else {
132 surface = qemu_create_displaysurface
133 (width,
134 height);
135 }
136 dpy_gfx_replace_surface(vga->con, surface);
137 }
138
139 if (!qxl->guest_primary.data) {
140 goto end;
141 }
142 for (i = 0; i < qxl->num_dirty_rects; i++) {
143 if (qemu_spice_rect_is_empty(qxl->dirty+i)) {
144 break;
145 }
146 if (qxl->dirty[i].left < 0 ||
147 qxl->dirty[i].top < 0 ||
148 qxl->dirty[i].left > qxl->dirty[i].right ||
149 qxl->dirty[i].top > qxl->dirty[i].bottom ||
150 qxl->dirty[i].right > width ||
151 qxl->dirty[i].bottom > height) {
152 continue;
153 }
154 qxl_blit(qxl, qxl->dirty+i);
155 dpy_gfx_update(vga->con,
156 qxl->dirty[i].left, qxl->dirty[i].top,
157 qxl->dirty[i].right - qxl->dirty[i].left,
158 qxl->dirty[i].bottom - qxl->dirty[i].top);
159 }
160 qxl->num_dirty_rects = 0;
161
162 end:
163 if (qxl->render_update_cookie_num == 0) {
164 graphic_hw_update_done(qxl->ssd.dcl.con);
165 }
166 }
167
168 /*
169 * use ssd.lock to protect render_update_cookie_num.
170 * qxl_render_update is called by io thread or vcpu thread, and the completion
171 * callbacks are called by spice_server thread, deferring to bh called from the
172 * io thread.
173 */
174 void qxl_render_update(PCIQXLDevice *qxl)
175 {
176 QXLCookie *cookie;
177
178 qemu_mutex_lock(&qxl->ssd.lock);
179
180 if (!runstate_is_running() || !qxl->guest_primary.commands ||
181 qxl->mode == QXL_MODE_UNDEFINED) {
182 qxl_render_update_area_unlocked(qxl);
183 qemu_mutex_unlock(&qxl->ssd.lock);
184 return;
185 }
186
187 qxl->guest_primary.commands = 0;
188 qxl->render_update_cookie_num++;
189 qemu_mutex_unlock(&qxl->ssd.lock);
190 cookie = qxl_cookie_new(QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
191 0);
192 qxl_set_rect_to_surface(qxl, &cookie->u.render.area);
193 qxl_spice_update_area(qxl, 0, &cookie->u.render.area, NULL,
194 0, 1 /* clear_dirty_region */, QXL_ASYNC, cookie);
195 }
196
197 void qxl_render_update_area_bh(void *opaque)
198 {
199 PCIQXLDevice *qxl = opaque;
200
201 qemu_mutex_lock(&qxl->ssd.lock);
202 qxl_render_update_area_unlocked(qxl);
203 qemu_mutex_unlock(&qxl->ssd.lock);
204 }
205
206 void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie)
207 {
208 qemu_mutex_lock(&qxl->ssd.lock);
209 trace_qxl_render_update_area_done(cookie);
210 qemu_bh_schedule(qxl->update_area_bh);
211 qxl->render_update_cookie_num--;
212 qemu_mutex_unlock(&qxl->ssd.lock);
213 g_free(cookie);
214 }
215
216 static void qxl_unpack_chunks(void *dest, size_t size, PCIQXLDevice *qxl,
217 QXLDataChunk *chunk, uint32_t group_id)
218 {
219 uint32_t max_chunks = 32;
220 size_t offset = 0;
221 size_t bytes;
222
223 for (;;) {
224 bytes = MIN(size - offset, chunk->data_size);
225 memcpy(dest + offset, chunk->data, bytes);
226 offset += bytes;
227 if (offset == size) {
228 return;
229 }
230 chunk = qxl_phys2virt(qxl, chunk->next_chunk, group_id);
231 if (!chunk) {
232 return;
233 }
234 max_chunks--;
235 if (max_chunks == 0) {
236 return;
237 }
238 }
239 }
240
241 static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor,
242 uint32_t group_id)
243 {
244 QEMUCursor *c;
245 uint8_t *and_mask, *xor_mask;
246 size_t size;
247
248 c = cursor_alloc(cursor->header.width, cursor->header.height);
249 c->hot_x = cursor->header.hot_spot_x;
250 c->hot_y = cursor->header.hot_spot_y;
251 switch (cursor->header.type) {
252 case SPICE_CURSOR_TYPE_MONO:
253 /* Assume that the full cursor is available in a single chunk. */
254 size = 2 * cursor_get_mono_bpl(c) * c->height;
255 if (size != cursor->data_size) {
256 fprintf(stderr, "%s: bad monochrome cursor %ux%u with size %u\n",
257 __func__, c->width, c->height, cursor->data_size);
258 goto fail;
259 }
260 and_mask = cursor->chunk.data;
261 xor_mask = and_mask + cursor_get_mono_bpl(c) * c->height;
262 cursor_set_mono(c, 0xffffff, 0x000000, xor_mask, 1, and_mask);
263 if (qxl->debug > 2) {
264 cursor_print_ascii_art(c, "qxl/mono");
265 }
266 break;
267 case SPICE_CURSOR_TYPE_ALPHA:
268 size = sizeof(uint32_t) * cursor->header.width * cursor->header.height;
269 qxl_unpack_chunks(c->data, size, qxl, &cursor->chunk, group_id);
270 if (qxl->debug > 2) {
271 cursor_print_ascii_art(c, "qxl/alpha");
272 }
273 break;
274 default:
275 fprintf(stderr, "%s: not implemented: type %d\n",
276 __func__, cursor->header.type);
277 goto fail;
278 }
279 return c;
280
281 fail:
282 cursor_put(c);
283 return NULL;
284 }
285
286
287 /* called from spice server thread context only */
288 int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
289 {
290 QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
291 QXLCursor *cursor;
292 QEMUCursor *c;
293
294 if (!cmd) {
295 return 1;
296 }
297
298 if (!dpy_cursor_define_supported(qxl->vga.con)) {
299 return 0;
300 }
301
302 if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
303 fprintf(stderr, "%s", __func__);
304 qxl_log_cmd_cursor(qxl, cmd, ext->group_id);
305 fprintf(stderr, "\n");
306 }
307 switch (cmd->type) {
308 case QXL_CURSOR_SET:
309 cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
310 if (!cursor) {
311 return 1;
312 }
313 c = qxl_cursor(qxl, cursor, ext->group_id);
314 if (c == NULL) {
315 c = cursor_builtin_left_ptr();
316 }
317 qemu_mutex_lock(&qxl->ssd.lock);
318 if (qxl->ssd.cursor) {
319 cursor_put(qxl->ssd.cursor);
320 }
321 qxl->ssd.cursor = c;
322 qxl->ssd.mouse_x = cmd->u.set.position.x;
323 qxl->ssd.mouse_y = cmd->u.set.position.y;
324 qemu_mutex_unlock(&qxl->ssd.lock);
325 qemu_bh_schedule(qxl->ssd.cursor_bh);
326 break;
327 case QXL_CURSOR_MOVE:
328 qemu_mutex_lock(&qxl->ssd.lock);
329 qxl->ssd.mouse_x = cmd->u.position.x;
330 qxl->ssd.mouse_y = cmd->u.position.y;
331 qemu_mutex_unlock(&qxl->ssd.lock);
332 qemu_bh_schedule(qxl->ssd.cursor_bh);
333 break;
334 }
335 return 0;
336 }