/* * 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 "qemu/osdep.h" #include "qxl.h" #include "sysemu/runstate.h" #include "trace.h" static void qxl_blit(PCIQXLDevice *qxl, QXLRect *rect) { DisplaySurface *surface = qemu_console_surface(qxl->vga.con); uint8_t *dst = surface_data(surface); uint8_t *src; int len, i; if (is_buffer_shared(surface)) { return; } trace_qxl_render_blit(qxl->guest_primary.qxl_stride, rect->left, rect->right, rect->top, rect->bottom); src = qxl->guest_primary.data; if (qxl->guest_primary.qxl_stride < 0) { /* qxl surface is upside down, walk src scanlines * in reverse order to flip it */ src += (qxl->guest_primary.surface.height - rect->top - 1) * qxl->guest_primary.abs_stride; } else { src += rect->top * 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.qxl_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", __func__, 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; DisplaySurface *surface; int width = qxl->guest_head0_width ?: qxl->guest_primary.surface.width; int height = qxl->guest_head0_height ?: qxl->guest_primary.surface.height; int i; if (qxl->guest_primary.resized) { qxl->guest_primary.resized = 0; qxl->guest_primary.data = qxl_phys2virt(qxl, qxl->guest_primary.surface.mem, MEMSLOT_GROUP_GUEST); if (!qxl->guest_primary.data) { return; } qxl_set_rect_to_surface(qxl, &qxl->dirty[0]); qxl->num_dirty_rects = 1; trace_qxl_render_guest_primary_resized( width, height, qxl->guest_primary.qxl_stride, qxl->guest_primary.bytes_pp, qxl->guest_primary.bits_pp); if (qxl->guest_primary.qxl_stride > 0) { pixman_format_code_t format = qemu_default_pixman_format(qxl->guest_primary.bits_pp, true); surface = qemu_create_displaysurface_from (width, height, format, qxl->guest_primary.abs_stride, qxl->guest_primary.data); } else { surface = qemu_create_displaysurface (width, height); } dpy_gfx_replace_surface(vga->con, surface); } if (!qxl->guest_primary.data) { return; } for (i = 0; i < qxl->num_dirty_rects; i++) { if (qemu_spice_rect_is_empty(qxl->dirty+i)) { break; } if (qxl->dirty[i].left < 0 || qxl->dirty[i].top < 0 || qxl->dirty[i].left > qxl->dirty[i].right || qxl->dirty[i].top > qxl->dirty[i].bottom || qxl->dirty[i].right > width || qxl->dirty[i].bottom > height) { continue; } qxl_blit(qxl, qxl->dirty+i); dpy_gfx_update(vga->con, 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, deferring 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->mode == QXL_MODE_UNDEFINED) { 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); trace_qxl_render_update_area_done(cookie); qemu_bh_schedule(qxl->update_area_bh); qxl->render_update_cookie_num--; qemu_mutex_unlock(&qxl->ssd.lock); g_free(cookie); } static void qxl_unpack_chunks(void *dest, size_t size, PCIQXLDevice *qxl, QXLDataChunk *chunk, uint32_t group_id) { uint32_t max_chunks = 32; size_t offset = 0; size_t bytes; for (;;) { bytes = MIN(size - offset, chunk->data_size); memcpy(dest + offset, chunk->data, bytes); offset += bytes; if (offset == size) { return; } chunk = qxl_phys2virt(qxl, chunk->next_chunk, group_id); if (!chunk) { return; } max_chunks--; if (max_chunks == 0) { return; } } } static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor, uint32_t group_id) { QEMUCursor *c; uint8_t *and_mask, *xor_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_MONO: /* Assume that the full cursor is available in a single chunk. */ size = 2 * cursor_get_mono_bpl(c) * c->height; if (size != cursor->data_size) { fprintf(stderr, "%s: bad monochrome cursor %ux%u with size %u\n", __func__, c->width, c->height, cursor->data_size); goto fail; } and_mask = cursor->chunk.data; xor_mask = and_mask + cursor_get_mono_bpl(c) * c->height; cursor_set_mono(c, 0xffffff, 0x000000, xor_mask, 1, and_mask); if (qxl->debug > 2) { cursor_print_ascii_art(c, "qxl/mono"); } break; case SPICE_CURSOR_TYPE_ALPHA: size = sizeof(uint32_t) * cursor->header.width * cursor->header.height; qxl_unpack_chunks(c->data, size, qxl, &cursor->chunk, group_id); if (qxl->debug > 2) { cursor_print_ascii_art(c, "qxl/alpha"); } break; default: fprintf(stderr, "%s: not implemented: type %d\n", __func__, cursor->header.type); goto fail; } return c; fail: cursor_put(c); return NULL; } /* called from spice server thread context only */ int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext) { QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); QXLCursor *cursor; QEMUCursor *c; if (!cmd) { return 1; } if (!dpy_cursor_define_supported(qxl->vga.con)) { return 0; } if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) { fprintf(stderr, "%s", __func__); 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) { return 1; } c = qxl_cursor(qxl, cursor, ext->group_id); 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); qemu_bh_schedule(qxl->ssd.cursor_bh); 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); qemu_bh_schedule(qxl->ssd.cursor_bh); break; } return 0; }