aboutsummaryrefslogtreecommitdiff
path: root/hw/qxl-render.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/qxl-render.c')
-rw-r--r--hw/qxl-render.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/hw/qxl-render.c b/hw/qxl-render.c
new file mode 100644
index 0000000000..58965e0179
--- /dev/null
+++ b/hw/qxl-render.c
@@ -0,0 +1,226 @@
+/*
+ * 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 "qxl.h"
+
+static void qxl_flip(PCIQXLDevice *qxl, QXLRect *rect)
+{
+ uint8_t *src = qxl->guest_primary.data;
+ uint8_t *dst = qxl->guest_primary.flipped;
+ int len, i;
+
+ src += (qxl->guest_primary.surface.height - rect->top - 1) *
+ qxl->guest_primary.stride;
+ dst += rect->top * qxl->guest_primary.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.stride;
+ src -= qxl->guest_primary.stride;
+ }
+}
+
+void qxl_render_resize(PCIQXLDevice *qxl)
+{
+ QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
+
+ qxl->guest_primary.stride = 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", __FUNCTION__,
+ qxl->guest_primary.surface.format);
+ qxl->guest_primary.bytes_pp = 4;
+ qxl->guest_primary.bits_pp = 32;
+ break;
+ }
+}
+
+void qxl_render_update(PCIQXLDevice *qxl)
+{
+ VGACommonState *vga = &qxl->vga;
+ QXLRect dirty[32], update;
+ void *ptr;
+ int i;
+
+ if (qxl->guest_primary.resized) {
+ qxl->guest_primary.resized = 0;
+
+ if (qxl->guest_primary.flipped) {
+ qemu_free(qxl->guest_primary.flipped);
+ qxl->guest_primary.flipped = NULL;
+ }
+ qemu_free_displaysurface(vga->ds);
+
+ qxl->guest_primary.data = qemu_get_ram_ptr(qxl->vga.vram_offset);
+ if (qxl->guest_primary.stride < 0) {
+ /* spice surface is upside down -> need extra buffer to flip */
+ qxl->guest_primary.stride = -qxl->guest_primary.stride;
+ qxl->guest_primary.flipped = qemu_malloc(qxl->guest_primary.surface.width *
+ qxl->guest_primary.stride);
+ ptr = qxl->guest_primary.flipped;
+ } else {
+ ptr = qxl->guest_primary.data;
+ }
+ dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d, flip %s\n",
+ __FUNCTION__,
+ qxl->guest_primary.surface.width,
+ qxl->guest_primary.surface.height,
+ qxl->guest_primary.stride,
+ qxl->guest_primary.bytes_pp,
+ qxl->guest_primary.bits_pp,
+ qxl->guest_primary.flipped ? "yes" : "no");
+ vga->ds->surface =
+ qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
+ qxl->guest_primary.surface.height,
+ qxl->guest_primary.bits_pp,
+ qxl->guest_primary.stride,
+ ptr);
+ dpy_resize(vga->ds);
+ }
+
+ if (!qxl->guest_primary.commands) {
+ return;
+ }
+ qxl->guest_primary.commands = 0;
+
+ update.left = 0;
+ update.right = qxl->guest_primary.surface.width;
+ update.top = 0;
+ update.bottom = qxl->guest_primary.surface.height;
+
+ memset(dirty, 0, sizeof(dirty));
+ qxl->ssd.worker->update_area(qxl->ssd.worker, 0, &update,
+ dirty, ARRAY_SIZE(dirty), 1);
+
+ for (i = 0; i < ARRAY_SIZE(dirty); i++) {
+ if (qemu_spice_rect_is_empty(dirty+i)) {
+ break;
+ }
+ if (qxl->guest_primary.flipped) {
+ qxl_flip(qxl, dirty+i);
+ }
+ dpy_update(vga->ds,
+ dirty[i].left, dirty[i].top,
+ dirty[i].right - dirty[i].left,
+ dirty[i].bottom - dirty[i].top);
+ }
+}
+
+static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor)
+{
+ QEMUCursor *c;
+ uint8_t *image, *mask;
+ int 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_ALPHA:
+ size = cursor->header.width * cursor->header.height * sizeof(uint32_t);
+ memcpy(c->data, cursor->chunk.data, size);
+ if (qxl->debug > 2) {
+ cursor_print_ascii_art(c, "qxl/alpha");
+ }
+ break;
+ case SPICE_CURSOR_TYPE_MONO:
+ mask = cursor->chunk.data;
+ image = mask + cursor_get_mono_bpl(c) * c->width;
+ cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask);
+ if (qxl->debug > 2) {
+ cursor_print_ascii_art(c, "qxl/mono");
+ }
+ break;
+ default:
+ fprintf(stderr, "%s: not implemented: type %d\n",
+ __FUNCTION__, cursor->header.type);
+ goto fail;
+ }
+ return c;
+
+fail:
+ cursor_put(c);
+ return NULL;
+}
+
+
+/* called from spice server thread context only */
+void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
+{
+ QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
+ QXLCursor *cursor;
+ QEMUCursor *c;
+ int x = -1, y = -1;
+
+ if (!qxl->ssd.ds->mouse_set || !qxl->ssd.ds->cursor_define) {
+ return;
+ }
+
+ if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
+ fprintf(stderr, "%s", __FUNCTION__);
+ qxl_log_cmd_cursor(qxl, cmd, ext->group_id);
+ fprintf(stderr, "\n");
+ }
+ switch (cmd->type) {
+ case QXL_CURSOR_SET:
+ x = cmd->u.set.position.x;
+ y = cmd->u.set.position.y;
+ cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
+ if (cursor->chunk.data_size != cursor->data_size) {
+ fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__);
+ return;
+ }
+ c = qxl_cursor(qxl, cursor);
+ if (c == NULL) {
+ c = cursor_builtin_left_ptr();
+ }
+ qemu_mutex_lock_iothread();
+ qxl->ssd.ds->cursor_define(c);
+ qxl->ssd.ds->mouse_set(x, y, 1);
+ qemu_mutex_unlock_iothread();
+ cursor_put(c);
+ break;
+ case QXL_CURSOR_MOVE:
+ x = cmd->u.position.x;
+ y = cmd->u.position.y;
+ qemu_mutex_lock_iothread();
+ qxl->ssd.ds->mouse_set(x, y, 1);
+ qemu_mutex_unlock_iothread();
+ break;
+ }
+}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-23 17:23:32 +0000