Don't try to be clever and skip displaysurface reinitialization in case the size hasn't changed. Other parameters might have changed nevertheless, for example depth or stride, resulting in rendering being broken then. Trigger: boot linux guest with vesafb, start X11, make sure both vesafb and X11 use the display same resolution. Then watch X11 screen being upside down. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
278 lines
8.9 KiB
C
278 lines
8.9 KiB
C
/*
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* qxl local rendering (aka display on sdl/vnc)
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*
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* Copyright (C) 2010 Red Hat, Inc.
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*
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* maintained by Gerd Hoffmann <kraxel@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qxl.h"
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static void qxl_blit(PCIQXLDevice *qxl, QXLRect *rect)
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{
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uint8_t *src;
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uint8_t *dst = qxl->vga.ds->surface->data;
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int len, i;
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if (is_buffer_shared(qxl->vga.ds->surface)) {
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return;
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}
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if (!qxl->guest_primary.data) {
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trace_qxl_render_blit_guest_primary_initialized();
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qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
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}
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trace_qxl_render_blit(qxl->guest_primary.qxl_stride,
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rect->left, rect->right, rect->top, rect->bottom);
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src = qxl->guest_primary.data;
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if (qxl->guest_primary.qxl_stride < 0) {
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/* qxl surface is upside down, walk src scanlines
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* in reverse order to flip it */
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src += (qxl->guest_primary.surface.height - rect->top - 1) *
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qxl->guest_primary.abs_stride;
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} else {
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src += rect->top * qxl->guest_primary.abs_stride;
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}
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dst += rect->top * qxl->guest_primary.abs_stride;
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src += rect->left * qxl->guest_primary.bytes_pp;
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dst += rect->left * qxl->guest_primary.bytes_pp;
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len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp;
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for (i = rect->top; i < rect->bottom; i++) {
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memcpy(dst, src, len);
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dst += qxl->guest_primary.abs_stride;
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src += qxl->guest_primary.qxl_stride;
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}
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}
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void qxl_render_resize(PCIQXLDevice *qxl)
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{
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QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
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qxl->guest_primary.qxl_stride = sc->stride;
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qxl->guest_primary.abs_stride = abs(sc->stride);
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qxl->guest_primary.resized++;
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switch (sc->format) {
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case SPICE_SURFACE_FMT_16_555:
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qxl->guest_primary.bytes_pp = 2;
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qxl->guest_primary.bits_pp = 15;
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break;
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case SPICE_SURFACE_FMT_16_565:
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qxl->guest_primary.bytes_pp = 2;
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qxl->guest_primary.bits_pp = 16;
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break;
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case SPICE_SURFACE_FMT_32_xRGB:
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case SPICE_SURFACE_FMT_32_ARGB:
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qxl->guest_primary.bytes_pp = 4;
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qxl->guest_primary.bits_pp = 32;
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break;
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default:
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fprintf(stderr, "%s: unhandled format: %x\n", __FUNCTION__,
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qxl->guest_primary.surface.format);
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qxl->guest_primary.bytes_pp = 4;
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qxl->guest_primary.bits_pp = 32;
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break;
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}
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}
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static void qxl_set_rect_to_surface(PCIQXLDevice *qxl, QXLRect *area)
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{
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area->left = 0;
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area->right = qxl->guest_primary.surface.width;
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area->top = 0;
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area->bottom = qxl->guest_primary.surface.height;
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}
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static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
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{
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VGACommonState *vga = &qxl->vga;
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int i;
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if (qxl->guest_primary.resized) {
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qxl->guest_primary.resized = 0;
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qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
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qxl_set_rect_to_surface(qxl, &qxl->dirty[0]);
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qxl->num_dirty_rects = 1;
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trace_qxl_render_guest_primary_resized(
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qxl->guest_primary.surface.width,
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qxl->guest_primary.surface.height,
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qxl->guest_primary.qxl_stride,
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qxl->guest_primary.bytes_pp,
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qxl->guest_primary.bits_pp);
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if (qxl->guest_primary.qxl_stride > 0) {
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qemu_free_displaysurface(vga->ds);
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qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
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qxl->guest_primary.surface.height,
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qxl->guest_primary.bits_pp,
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qxl->guest_primary.abs_stride,
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qxl->guest_primary.data);
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} else {
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qemu_resize_displaysurface(vga->ds,
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qxl->guest_primary.surface.width,
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qxl->guest_primary.surface.height);
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}
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dpy_resize(vga->ds);
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}
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for (i = 0; i < qxl->num_dirty_rects; i++) {
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if (qemu_spice_rect_is_empty(qxl->dirty+i)) {
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break;
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}
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qxl_blit(qxl, qxl->dirty+i);
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dpy_update(vga->ds,
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qxl->dirty[i].left, qxl->dirty[i].top,
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qxl->dirty[i].right - qxl->dirty[i].left,
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qxl->dirty[i].bottom - qxl->dirty[i].top);
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}
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qxl->num_dirty_rects = 0;
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}
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/*
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* use ssd.lock to protect render_update_cookie_num.
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* qxl_render_update is called by io thread or vcpu thread, and the completion
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* callbacks are called by spice_server thread, defering to bh called from the
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* io thread.
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*/
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void qxl_render_update(PCIQXLDevice *qxl)
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{
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QXLCookie *cookie;
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qemu_mutex_lock(&qxl->ssd.lock);
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if (!runstate_is_running() || !qxl->guest_primary.commands) {
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qxl_render_update_area_unlocked(qxl);
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qemu_mutex_unlock(&qxl->ssd.lock);
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return;
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}
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qxl->guest_primary.commands = 0;
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qxl->render_update_cookie_num++;
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qemu_mutex_unlock(&qxl->ssd.lock);
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cookie = qxl_cookie_new(QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
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0);
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qxl_set_rect_to_surface(qxl, &cookie->u.render.area);
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qxl_spice_update_area(qxl, 0, &cookie->u.render.area, NULL,
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0, 1 /* clear_dirty_region */, QXL_ASYNC, cookie);
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}
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void qxl_render_update_area_bh(void *opaque)
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{
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PCIQXLDevice *qxl = opaque;
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qemu_mutex_lock(&qxl->ssd.lock);
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qxl_render_update_area_unlocked(qxl);
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qemu_mutex_unlock(&qxl->ssd.lock);
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}
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void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie)
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{
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qemu_mutex_lock(&qxl->ssd.lock);
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trace_qxl_render_update_area_done(cookie);
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qemu_bh_schedule(qxl->update_area_bh);
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qxl->render_update_cookie_num--;
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qemu_mutex_unlock(&qxl->ssd.lock);
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g_free(cookie);
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}
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static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor)
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{
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QEMUCursor *c;
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uint8_t *image, *mask;
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size_t size;
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c = cursor_alloc(cursor->header.width, cursor->header.height);
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c->hot_x = cursor->header.hot_spot_x;
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c->hot_y = cursor->header.hot_spot_y;
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switch (cursor->header.type) {
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case SPICE_CURSOR_TYPE_ALPHA:
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size = cursor->header.width * cursor->header.height * sizeof(uint32_t);
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memcpy(c->data, cursor->chunk.data, size);
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if (qxl->debug > 2) {
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cursor_print_ascii_art(c, "qxl/alpha");
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}
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break;
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case SPICE_CURSOR_TYPE_MONO:
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mask = cursor->chunk.data;
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image = mask + cursor_get_mono_bpl(c) * c->width;
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cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask);
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if (qxl->debug > 2) {
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cursor_print_ascii_art(c, "qxl/mono");
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}
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break;
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default:
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fprintf(stderr, "%s: not implemented: type %d\n",
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__FUNCTION__, cursor->header.type);
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goto fail;
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}
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return c;
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fail:
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cursor_put(c);
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return NULL;
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}
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/* called from spice server thread context only */
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int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
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{
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QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
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QXLCursor *cursor;
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QEMUCursor *c;
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if (!cmd) {
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return 1;
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}
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if (!qxl->ssd.ds->mouse_set || !qxl->ssd.ds->cursor_define) {
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return 0;
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}
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if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
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fprintf(stderr, "%s", __FUNCTION__);
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qxl_log_cmd_cursor(qxl, cmd, ext->group_id);
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fprintf(stderr, "\n");
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}
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switch (cmd->type) {
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case QXL_CURSOR_SET:
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cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
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if (!cursor) {
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return 1;
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}
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if (cursor->chunk.data_size != cursor->data_size) {
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fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__);
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return 1;
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}
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c = qxl_cursor(qxl, cursor);
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if (c == NULL) {
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c = cursor_builtin_left_ptr();
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}
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qemu_mutex_lock(&qxl->ssd.lock);
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if (qxl->ssd.cursor) {
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cursor_put(qxl->ssd.cursor);
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}
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qxl->ssd.cursor = c;
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qxl->ssd.mouse_x = cmd->u.set.position.x;
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qxl->ssd.mouse_y = cmd->u.set.position.y;
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qemu_mutex_unlock(&qxl->ssd.lock);
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break;
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case QXL_CURSOR_MOVE:
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qemu_mutex_lock(&qxl->ssd.lock);
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qxl->ssd.mouse_x = cmd->u.position.x;
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qxl->ssd.mouse_y = cmd->u.position.y;
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qemu_mutex_unlock(&qxl->ssd.lock);
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break;
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}
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return 0;
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}
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