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-rw-r--r--qemu/ui/vnc-enc-hextile.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/qemu/ui/vnc-enc-hextile.c b/qemu/ui/vnc-enc-hextile.c
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+++ b/qemu/ui/vnc-enc-hextile.c
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+/*
+ * QEMU VNC display driver: hextile encoding
+ *
+ * Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
+ * Copyright (C) 2006 Fabrice Bellard
+ * Copyright (C) 2009 Red Hat, Inc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "vnc.h"
+
+static void hextile_enc_cord(uint8_t *ptr, int x, int y, int w, int h)
+{
+ ptr[0] = ((x & 0x0F) << 4) | (y & 0x0F);
+ ptr[1] = (((w - 1) & 0x0F) << 4) | ((h - 1) & 0x0F);
+}
+
+#define BPP 32
+#include "vnc-enc-hextile-template.h"
+#undef BPP
+
+#define GENERIC
+#define BPP 32
+#include "vnc-enc-hextile-template.h"
+#undef BPP
+#undef GENERIC
+
+int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
+ int y, int w, int h)
+{
+ int i, j;
+ int has_fg, has_bg;
+ uint8_t *last_fg, *last_bg;
+
+ last_fg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES);
+ last_bg = (uint8_t *) g_malloc(VNC_SERVER_FB_BYTES);
+ has_fg = has_bg = 0;
+ for (j = y; j < (y + h); j += 16) {
+ for (i = x; i < (x + w); i += 16) {
+ vs->hextile.send_tile(vs, i, j,
+ MIN(16, x + w - i), MIN(16, y + h - j),
+ last_bg, last_fg, &has_bg, &has_fg);
+ }
+ }
+ g_free(last_fg);
+ g_free(last_bg);
+
+ return 1;
+}
+
+void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
+{
+ if (!generic) {
+ switch (VNC_SERVER_FB_BITS) {
+ case 32:
+ vs->hextile.send_tile = send_hextile_tile_32;
+ break;
+ }
+ } else {
+ switch (VNC_SERVER_FB_BITS) {
+ case 32:
+ vs->hextile.send_tile = send_hextile_tile_generic_32;
+ break;
+ }
+ }
+}