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