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 24 static void qxl_blit(PCIQXLDevice *qxl, QXLRect *rect) 25 { 26 DisplaySurface *surface = qemu_console_surface(qxl->vga.con); 27 uint8_t *dst = surface_data(surface); 28 uint8_t *src; 29 int len, i; 30 31 if (is_buffer_shared(surface)) { 32 return; 33 } 34 if (!qxl->guest_primary.data) { 35 trace_qxl_render_blit_guest_primary_initialized(); 36 qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram); 37 } 38 trace_qxl_render_blit(qxl->guest_primary.qxl_stride, 39 rect->left, rect->right, rect->top, rect->bottom); 40 src = qxl->guest_primary.data; 41 if (qxl->guest_primary.qxl_stride < 0) { 42 /* qxl surface is upside down, walk src scanlines 43 * in reverse order to flip it */ 44 src += (qxl->guest_primary.surface.height - rect->top - 1) * 45 qxl->guest_primary.abs_stride; 46 } else { 47 src += rect->top * qxl->guest_primary.abs_stride; 48 } 49 dst += rect->top * qxl->guest_primary.abs_stride; 50 src += rect->left * qxl->guest_primary.bytes_pp; 51 dst += rect->left * qxl->guest_primary.bytes_pp; 52 len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp; 53 54 for (i = rect->top; i < rect->bottom; i++) { 55 memcpy(dst, src, len); 56 dst += qxl->guest_primary.abs_stride; 57 src += qxl->guest_primary.qxl_stride; 58 } 59 } 60 61 void qxl_render_resize(PCIQXLDevice *qxl) 62 { 63 QXLSurfaceCreate *sc = &qxl->guest_primary.surface; 64 65 qxl->guest_primary.qxl_stride = sc->stride; 66 qxl->guest_primary.abs_stride = abs(sc->stride); 67 qxl->guest_primary.resized++; 68 switch (sc->format) { 69 case SPICE_SURFACE_FMT_16_555: 70 qxl->guest_primary.bytes_pp = 2; 71 qxl->guest_primary.bits_pp = 15; 72 break; 73 case SPICE_SURFACE_FMT_16_565: 74 qxl->guest_primary.bytes_pp = 2; 75 qxl->guest_primary.bits_pp = 16; 76 break; 77 case SPICE_SURFACE_FMT_32_xRGB: 78 case SPICE_SURFACE_FMT_32_ARGB: 79 qxl->guest_primary.bytes_pp = 4; 80 qxl->guest_primary.bits_pp = 32; 81 break; 82 default: 83 fprintf(stderr, "%s: unhandled format: %x\n", __FUNCTION__, 84 qxl->guest_primary.surface.format); 85 qxl->guest_primary.bytes_pp = 4; 86 qxl->guest_primary.bits_pp = 32; 87 break; 88 } 89 } 90 91 static void qxl_set_rect_to_surface(PCIQXLDevice *qxl, QXLRect *area) 92 { 93 area->left = 0; 94 area->right = qxl->guest_primary.surface.width; 95 area->top = 0; 96 area->bottom = qxl->guest_primary.surface.height; 97 } 98 99 static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl) 100 { 101 VGACommonState *vga = &qxl->vga; 102 DisplaySurface *surface; 103 int i; 104 105 if (qxl->guest_primary.resized) { 106 qxl->guest_primary.resized = 0; 107 qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram); 108 qxl_set_rect_to_surface(qxl, &qxl->dirty[0]); 109 qxl->num_dirty_rects = 1; 110 trace_qxl_render_guest_primary_resized( 111 qxl->guest_primary.surface.width, 112 qxl->guest_primary.surface.height, 113 qxl->guest_primary.qxl_stride, 114 qxl->guest_primary.bytes_pp, 115 qxl->guest_primary.bits_pp); 116 if (qxl->guest_primary.qxl_stride > 0) { 117 surface = qemu_create_displaysurface_from 118 (qxl->guest_primary.surface.width, 119 qxl->guest_primary.surface.height, 120 qxl->guest_primary.bits_pp, 121 qxl->guest_primary.abs_stride, 122 qxl->guest_primary.data, 123 false); 124 } else { 125 surface = qemu_create_displaysurface 126 (qxl->guest_primary.surface.width, 127 qxl->guest_primary.surface.height); 128 } 129 dpy_gfx_replace_surface(vga->con, surface); 130 } 131 for (i = 0; i < qxl->num_dirty_rects; i++) { 132 if (qemu_spice_rect_is_empty(qxl->dirty+i)) { 133 break; 134 } 135 qxl_blit(qxl, qxl->dirty+i); 136 dpy_gfx_update(vga->con, 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); 140 } 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 trace_qxl_render_update_area_done(cookie); 185 qemu_bh_schedule(qxl->update_area_bh); 186 qxl->render_update_cookie_num--; 187 qemu_mutex_unlock(&qxl->ssd.lock); 188 g_free(cookie); 189 } 190 191 static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor) 192 { 193 QEMUCursor *c; 194 uint8_t *image, *mask; 195 size_t size; 196 197 c = cursor_alloc(cursor->header.width, cursor->header.height); 198 c->hot_x = cursor->header.hot_spot_x; 199 c->hot_y = cursor->header.hot_spot_y; 200 switch (cursor->header.type) { 201 case SPICE_CURSOR_TYPE_ALPHA: 202 size = sizeof(uint32_t) * cursor->header.width * cursor->header.height; 203 memcpy(c->data, cursor->chunk.data, size); 204 if (qxl->debug > 2) { 205 cursor_print_ascii_art(c, "qxl/alpha"); 206 } 207 break; 208 case SPICE_CURSOR_TYPE_MONO: 209 mask = cursor->chunk.data; 210 image = mask + cursor_get_mono_bpl(c) * c->width; 211 cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask); 212 if (qxl->debug > 2) { 213 cursor_print_ascii_art(c, "qxl/mono"); 214 } 215 break; 216 default: 217 fprintf(stderr, "%s: not implemented: type %d\n", 218 __FUNCTION__, cursor->header.type); 219 goto fail; 220 } 221 return c; 222 223 fail: 224 cursor_put(c); 225 return NULL; 226 } 227 228 229 /* called from spice server thread context only */ 230 int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext) 231 { 232 QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); 233 QXLCursor *cursor; 234 QEMUCursor *c; 235 236 if (!cmd) { 237 return 1; 238 } 239 240 if (!dpy_cursor_define_supported(qxl->vga.con)) { 241 return 0; 242 } 243 244 if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) { 245 fprintf(stderr, "%s", __FUNCTION__); 246 qxl_log_cmd_cursor(qxl, cmd, ext->group_id); 247 fprintf(stderr, "\n"); 248 } 249 switch (cmd->type) { 250 case QXL_CURSOR_SET: 251 cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id); 252 if (!cursor) { 253 return 1; 254 } 255 if (cursor->chunk.data_size != cursor->data_size) { 256 fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__); 257 return 1; 258 } 259 c = qxl_cursor(qxl, cursor); 260 if (c == NULL) { 261 c = cursor_builtin_left_ptr(); 262 } 263 qemu_mutex_lock(&qxl->ssd.lock); 264 if (qxl->ssd.cursor) { 265 cursor_put(qxl->ssd.cursor); 266 } 267 qxl->ssd.cursor = c; 268 qxl->ssd.mouse_x = cmd->u.set.position.x; 269 qxl->ssd.mouse_y = cmd->u.set.position.y; 270 qemu_mutex_unlock(&qxl->ssd.lock); 271 break; 272 case QXL_CURSOR_MOVE: 273 qemu_mutex_lock(&qxl->ssd.lock); 274 qxl->ssd.mouse_x = cmd->u.position.x; 275 qxl->ssd.mouse_y = cmd->u.position.y; 276 qemu_mutex_unlock(&qxl->ssd.lock); 277 break; 278 } 279 return 0; 280 } 281