@@ -121,6 +121,7 @@ ui-obj-$(CONFIG_CURSES) += curses.o
ui-obj-y += vnc.o d3des.o
ui-obj-y += vnc-enc-zlib.o vnc-enc-hextile.o
ui-obj-y += vnc-enc-tight.o vnc-palette.o
+ui-obj-y += vnc-enc-zrle.o
ui-obj-$(CONFIG_VNC_TLS) += vnc-tls.o vnc-auth-vencrypt.o
ui-obj-$(CONFIG_VNC_SASL) += vnc-auth-sasl.o
ui-obj-$(CONFIG_COCOA) += cocoa.o
new file mode 100644
@@ -0,0 +1,275 @@
+/*
+ * QEMU VNC display driver: Zlib Run-length Encoding (ZRLE)
+ *
+ * From libvncserver/libvncserver/zrleencodetemplate.c
+ * Copyright (C) 2002 RealVNC Ltd. All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ *
+ * This 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ */
+
+/*
+ * Before including this file, you must define a number of CPP macros.
+ *
+ * ZRLE_BPP should be 8, 16 or 32 depending on the bits per pixel.
+ *
+ * Note that the buf argument to ZRLE_ENCODE needs to be at least one pixel
+ * bigger than the largest tile of pixel data, since the ZRLE encoding
+ * algorithm writes to the position one past the end of the pixel data.
+ */
+
+
+#include <assert.h>
+
+#undef ZRLE_ENDIAN_SUFFIX
+
+#if ZYWRLE_ENDIAN == ENDIAN_LITTLE
+#define ZRLE_ENDIAN_SUFFIX le
+#elif ZYWRLE_ENDIAN == ENDIAN_BIG
+#define ZRLE_ENDIAN_SUFFIX be
+#else
+#define ZRLE_ENDIAN_SUFFIX ne
+#endif
+
+#ifndef ZRLE_CONCAT
+#define ZRLE_CONCAT_I(a, b) a##b
+#define ZRLE_CONCAT2(a, b) ZRLE_CONCAT_I(a, b)
+#define ZRLE_CONCAT3(a, b, c) ZRLE_CONCAT2(a, ZRLE_CONCAT2(b, c))
+#endif
+
+#ifdef ZRLE_COMPACT_PIXEL
+#define ZRLE_ENCODE_SUFFIX ZRLE_CONCAT2(ZRLE_COMPACT_PIXEL,ZRLE_ENDIAN_SUFFIX)
+#define ZRLE_WRITE_SUFFIX ZRLE_COMPACT_PIXEL
+#define ZRLE_PIXEL ZRLE_CONCAT3(uint,ZRLE_BPP,_t)
+#define ZRLE_BPP_OUT 24
+#elif ZRLE_BPP == 15
+#define ZRLE_ENCODE_SUFFIX ZRLE_CONCAT2(ZRLE_BPP,ZRLE_ENDIAN_SUFFIX)
+#define ZRLE_WRITE_SUFFIX 16
+#define ZRLE_PIXEL uint16_t
+#define ZRLE_BPP_OUT 16
+#else
+#define ZRLE_ENCODE_SUFFIX ZRLE_CONCAT2(ZRLE_BPP,ZRLE_ENDIAN_SUFFIX)
+#define ZRLE_WRITE_SUFFIX ZRLE_BPP
+#define ZRLE_BPP_OUT ZRLE_BPP
+#define ZRLE_PIXEL ZRLE_CONCAT3(uint,ZRLE_BPP,_t)
+#endif
+
+#define ZRLE_WRITE_PIXEL ZRLE_CONCAT2(zrle_write_u, ZRLE_WRITE_SUFFIX)
+#define ZRLE_ENCODE ZRLE_CONCAT2(zrle_encode_, ZRLE_ENCODE_SUFFIX)
+#define ZRLE_ENCODE_TILE ZRLE_CONCAT2(zrle_encode_tile, ZRLE_ENCODE_SUFFIX)
+#define ZRLE_WRITE_PALETTE ZRLE_CONCAT2(zrle_write_palette,ZRLE_ENCODE_SUFFIX)
+
+static void ZRLE_ENCODE_TILE(VncState *vs, ZRLE_PIXEL *data, int w, int h,
+ int zywrle_level);
+
+#if ZRLE_BPP != 8
+#include "vnc-enc-zywrle-template.c"
+#endif
+
+
+static void ZRLE_ENCODE(VncState *vs, int x, int y, int w, int h,
+ int zywrle_level)
+{
+ int ty;
+
+ for (ty = y; ty < y + h; ty += VNC_ZRLE_TILE_HEIGHT) {
+
+ int tx, th;
+
+ th = MIN(VNC_ZRLE_TILE_HEIGHT, y + h - ty);
+
+ for (tx = x; tx < x + w; tx += VNC_ZRLE_TILE_WIDTH) {
+ int tw;
+ ZRLE_PIXEL *buf;
+
+ tw = MIN(VNC_ZRLE_TILE_WIDTH, x + w - tx);
+
+ buf = zrle_convert_fb(vs, tx, ty, tw, th, ZRLE_BPP);
+ ZRLE_ENCODE_TILE(vs, buf, tw, th, zywrle_level);
+ }
+ }
+}
+
+static void ZRLE_ENCODE_TILE(VncState *vs, ZRLE_PIXEL *data, int w, int h,
+ int zywrle_level)
+{
+ VncPalette *palette = &vs->zrle.palette;
+
+ int runs = 0;
+ int single_pixels = 0;
+
+ bool use_rle;
+ bool use_palette;
+
+ int i;
+
+ ZRLE_PIXEL *ptr = data;
+ ZRLE_PIXEL *end = ptr + h * w;
+ *end = ~*(end-1); /* one past the end is different so the while loop ends */
+
+ /* Real limit is 127 but we wan't a way to know if there is more than 127 */
+ palette_init(palette, 256, ZRLE_BPP);
+
+ while (ptr < end) {
+ ZRLE_PIXEL pix = *ptr;
+ if (*++ptr != pix) { /* FIXME */
+ single_pixels++;
+ } else {
+ while (*++ptr == pix) ;
+ runs++;
+ }
+ palette_put(palette, pix);
+ }
+
+ /* Solid tile is a special case */
+
+ if (palette_size(palette) == 1) {
+ bool found;
+
+ vnc_write_u8(vs, 1);
+ ZRLE_WRITE_PIXEL(vs, palette_color(palette, 0, &found));
+ return;
+ }
+
+ zrle_choose_palette_rle(vs, w, h, palette, ZRLE_BPP_OUT,
+ runs, single_pixels, zywrle_level,
+ &use_rle, &use_palette);
+
+ if (!use_palette) {
+ vnc_write_u8(vs, (use_rle ? 128 : 0));
+ } else {
+ uint32_t colors[VNC_PALETTE_MAX_SIZE];
+ size_t size = palette_size(palette);
+
+ vnc_write_u8(vs, (use_rle ? 128 : 0) | size);
+ palette_fill(palette, colors);
+
+ for (i = 0; i < size; i++) {
+ ZRLE_WRITE_PIXEL(vs, colors[i]);
+ }
+ }
+
+ if (use_rle) {
+ ZRLE_PIXEL *ptr = data;
+ ZRLE_PIXEL *end = ptr + w * h;
+ ZRLE_PIXEL *run_start;
+ ZRLE_PIXEL pix;
+
+ while (ptr < end) {
+ int len;
+ int index = 0;
+
+ run_start = ptr;
+ pix = *ptr++;
+
+ while (*ptr == pix && ptr < end) {
+ ptr++;
+ }
+
+ len = ptr - run_start;
+
+ if (use_palette)
+ index = palette_idx(palette, pix);
+
+ if (len <= 2 && use_palette) {
+ if (len == 2) {
+ vnc_write_u8(vs, index);
+ }
+ vnc_write_u8(vs, index);
+ continue;
+ }
+ if (use_palette) {
+ vnc_write_u8(vs, index | 128);
+ } else {
+ ZRLE_WRITE_PIXEL(vs, pix);
+ }
+
+ len -= 1;
+
+ while (len >= 255) {
+ vnc_write_u8(vs, 255);
+ len -= 255;
+ }
+
+ vnc_write_u8(vs, len);
+ }
+ } else if (use_palette) { /* no RLE */
+ int bppp;
+ ZRLE_PIXEL *ptr = data;
+
+ /* packed pixels */
+
+ assert (palette_size(palette) < 17);
+
+ bppp = bits_per_packed_pixel[palette_size(palette)-1];
+
+ for (i = 0; i < h; i++) {
+ uint8_t nbits = 0;
+ uint8_t byte = 0;
+
+ ZRLE_PIXEL *eol = ptr + w;
+
+ while (ptr < eol) {
+ ZRLE_PIXEL pix = *ptr++;
+ uint8_t index = palette_idx(palette, pix);
+
+ byte = (byte << bppp) | index;
+ nbits += bppp;
+ if (nbits >= 8) {
+ vnc_write_u8(vs, byte);
+ nbits = 0;
+ }
+ }
+ if (nbits > 0) {
+ byte <<= 8 - nbits;
+ vnc_write_u8(vs, byte);
+ }
+ }
+ } else {
+
+ /* raw */
+
+#if ZRLE_BPP != 8
+ if (zywrle_level > 0 && !(zywrle_level & 0x80)) {
+ ZYWRLE_ANALYZE(data, data, w, h, w, zywrle_level, vs->zywrle.buf);
+ ZRLE_ENCODE_TILE(vs, data, w, h, zywrle_level | 0x80);
+ }
+ else
+#endif
+ {
+#ifdef ZRLE_COMPACT_PIXEL
+ ZRLE_PIXEL *ptr;
+
+ for (ptr = data; ptr < data + w * h; ptr++) {
+ ZRLE_WRITE_PIXEL(vs, *ptr);
+ }
+#else
+ vnc_write(vs, data, w * h * (ZRLE_BPP / 8));
+#endif
+ }
+ }
+}
+
+#undef ZRLE_PIXEL
+#undef ZRLE_WRITE_PIXEL
+#undef ZRLE_ENCODE
+#undef ZRLE_ENCODE_TILE
+#undef ZYWRLE_ENCODE_TILE
+#undef ZRLE_BPP_OUT
+#undef ZRLE_WRITE_SUFFIX
+#undef ZRLE_ENCODE_SUFFIX
new file mode 100644
@@ -0,0 +1,389 @@
+/*
+ * QEMU VNC display driver: Zlib Run-length Encoding (ZRLE)
+ *
+ * From libvncserver/libvncserver/zrle.c
+ * Copyright (C) 2002 RealVNC Ltd. All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ *
+ * 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"
+#include "vnc-enc-zrle.h"
+
+static const int bits_per_packed_pixel[] = {
+ 0, 1, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
+};
+
+
+static void vnc_zrle_start(VncState *vs)
+{
+ buffer_reset(&vs->zrle.zrle);
+
+ // make the output buffer be the zlib buffer, so we can compress it later
+ vs->zrle.tmp = vs->output;
+ vs->output = vs->zrle.zrle;
+}
+
+static void vnc_zrle_stop(VncState *vs)
+{
+ // switch back to normal output/zlib buffers
+ vs->zrle.zrle = vs->output;
+ vs->output = vs->zrle.tmp;
+}
+
+static void *zrle_convert_fb(VncState *vs, int x, int y, int w, int h,
+ int bpp)
+{
+ Buffer tmp;
+
+ buffer_reset(&vs->zrle.fb);
+ buffer_reserve(&vs->zrle.fb, w * h * bpp + bpp);
+
+ tmp = vs->output;
+ vs->output = vs->zrle.fb;
+
+ vnc_raw_send_framebuffer_update(vs, x, y, w, h);
+
+ vs->zrle.fb = vs->output;
+ vs->output = tmp;
+ return vs->zrle.fb.buffer;
+}
+
+static int zrle_compress_data(VncState *vs, int level)
+{
+ z_streamp zstream = &vs->zrle.stream;
+
+ buffer_reset(&vs->zrle.zlib);
+
+ if (zstream->opaque != vs) {
+ int err;
+
+ zstream->zalloc = vnc_zlib_zalloc;
+ zstream->zfree = vnc_zlib_zfree;
+
+ err = deflateInit2(zstream, level, Z_DEFLATED, MAX_WBITS,
+ MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
+
+ if (err != Z_OK) {
+ fprintf(stderr, "VNC: error initializing zlib\n");
+ return -1;
+ }
+
+ zstream->opaque = vs;
+ }
+
+ /* reserve memory in output buffer */
+ buffer_reserve(&vs->zrle.zlib, vs->zrle.zrle.offset + 64);
+
+ /* set pointers */
+ zstream->next_in = vs->zrle.zrle.buffer;
+ zstream->avail_in = vs->zrle.zrle.offset;
+ zstream->next_out = vs->zrle.zlib.buffer + vs->zrle.zlib.offset;
+ zstream->avail_out = vs->zrle.zlib.capacity - vs->zrle.zlib.offset;
+ zstream->data_type = Z_BINARY;
+
+ /* start encoding */
+ if (deflate(zstream, Z_SYNC_FLUSH) != Z_OK) {
+ fprintf(stderr, "VNC: error during zrle compression\n");
+ return -1;
+ }
+
+ vs->zrle.zlib.offset = vs->zrle.zlib.capacity - zstream->avail_out;
+ return vs->zrle.zlib.offset;
+}
+
+/* Try to work out whether to use RLE and/or a palette. We do this by
+ * estimating the number of bytes which will be generated and picking the
+ * method which results in the fewest bytes. Of course this may not result
+ * in the fewest bytes after compression... */
+static void zrle_choose_palette_rle(VncState *vs, int w, int h,
+ VncPalette *palette, int bpp_out,
+ int runs, int single_pixels,
+ int zywrle_level,
+ bool *use_rle, bool *use_palette)
+{
+ size_t estimated_bytes;
+ size_t plain_rle_bytes;
+
+ *use_palette = *use_rle = false;
+
+ estimated_bytes = w * h * (bpp_out / 8); /* start assuming raw */
+
+ if (bpp_out != 8) {
+ if (zywrle_level > 0 && !(zywrle_level & 0x80))
+ estimated_bytes >>= zywrle_level;
+ }
+
+ plain_rle_bytes = ((bpp_out / 8) + 1) * (runs + single_pixels);
+
+ if (plain_rle_bytes < estimated_bytes) {
+ *use_rle = true;
+ estimated_bytes = plain_rle_bytes;
+ }
+
+ if (palette_size(palette) < 128) {
+ int palette_rle_bytes;
+
+ palette_rle_bytes = (bpp_out / 8) * palette_size(palette);
+ palette_rle_bytes += 2 * runs + single_pixels;
+
+ if (palette_rle_bytes < estimated_bytes) {
+ *use_rle = true;
+ *use_palette = true;
+ estimated_bytes = palette_rle_bytes;
+ }
+
+ if (palette_size(palette) < 17) {
+ int packed_bytes;
+
+ packed_bytes = (bpp_out / 8) * palette_size(palette);
+ packed_bytes += w * h *
+ bits_per_packed_pixel[palette_size(palette)-1] / 8;
+
+ if (packed_bytes < estimated_bytes) {
+ *use_rle = false;
+ *use_palette = true;
+ estimated_bytes = packed_bytes;
+ }
+ }
+ }
+}
+
+static void zrle_write_u32(VncState *vs, uint32_t value)
+{
+ uint8_t buf[4];
+
+ buf[0] = ((uint8_t *)&value)[0];
+ buf[1] = ((uint8_t *)&value)[1];
+ buf[2] = ((uint8_t *)&value)[2];
+ buf[3] = ((uint8_t *)&value)[3];
+
+ vnc_write(vs, buf, 4);
+}
+
+static void zrle_write_u24a(VncState *vs, uint32_t value)
+{
+ uint8_t buf[3];
+
+ buf[0] = ((uint8_t *)&value)[0];
+ buf[1] = ((uint8_t *)&value)[1];
+ buf[2] = ((uint8_t *)&value)[2];
+
+ vnc_write(vs, buf, 3);
+}
+
+static void zrle_write_u24b(VncState *vs, uint32_t value)
+{
+ uint8_t buf[3];
+
+ buf[0] = ((uint8_t *)&value)[1];
+ buf[1] = ((uint8_t *)&value)[2];
+ buf[2] = ((uint8_t *)&value)[3];
+
+ vnc_write(vs, buf, 3);
+}
+
+static void zrle_write_u16(VncState *vs, uint16_t value)
+{
+ uint8_t buf[2];
+
+ buf[0] = ((uint8_t *)&value)[0];
+ buf[1] = ((uint8_t *)&value)[1];
+
+ vnc_write(vs, buf, 2);
+}
+
+static void zrle_write_u8(VncState *vs, uint8_t value)
+{
+ vnc_write_u8(vs, value);
+}
+
+#define ENDIAN_LITTLE 0
+#define ENDIAN_BIG 1
+#define ENDIAN_NO 2
+
+#define ZRLE_BPP 8
+#define ZYWRLE_ENDIAN ENDIAN_NO
+#include "vnc-enc-zrle-template.c"
+#undef ZRLE_BPP
+
+#define ZRLE_BPP 15
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_LITTLE
+#include "vnc-enc-zrle-template.c"
+
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_BIG
+#include "vnc-enc-zrle-template.c"
+
+#undef ZRLE_BPP
+#define ZRLE_BPP 16
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_LITTLE
+#include "vnc-enc-zrle-template.c"
+
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_BIG
+#include "vnc-enc-zrle-template.c"
+
+#undef ZRLE_BPP
+#define ZRLE_BPP 32
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_LITTLE
+#include "vnc-enc-zrle-template.c"
+
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_BIG
+#include "vnc-enc-zrle-template.c"
+
+#define ZRLE_COMPACT_PIXEL 24a
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_LITTLE
+#include "vnc-enc-zrle-template.c"
+
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_BIG
+#include "vnc-enc-zrle-template.c"
+
+#undef ZRLE_COMPACT_PIXEL
+#define ZRLE_COMPACT_PIXEL 24b
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_LITTLE
+#include "vnc-enc-zrle-template.c"
+
+#undef ZYWRLE_ENDIAN
+#define ZYWRLE_ENDIAN ENDIAN_BIG
+#include "vnc-enc-zrle-template.c"
+#undef ZRLE_COMPACT_PIXEL
+#undef ZRLE_BPP
+
+static int zrle_send_framebuffer_update(VncState *vs, int x, int y,
+ int w, int h)
+{
+ bool be = !!(vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG);
+ size_t bytes;
+ int zywrle_level;
+
+ if (vs->zrle.type == VNC_ENCODING_ZYWRLE) {
+ if (!vs->vd->lossy || vs->tight.quality < 0 || vs->tight.quality == 9) {
+ zywrle_level = 0;
+ vs->zrle.type = VNC_ENCODING_ZRLE;
+ } else if (vs->tight.quality < 3) {
+ zywrle_level = 3;
+ } else if (vs->tight.quality < 6) {
+ zywrle_level = 2;
+ } else {
+ zywrle_level = 1;
+ }
+ } else {
+ zywrle_level = 0;
+ }
+
+ vnc_zrle_start(vs);
+
+ switch(vs->clientds.pf.bytes_per_pixel) {
+ case 1:
+ zrle_encode_8ne(vs, x, y, w, h, zywrle_level);
+ break;
+
+ case 2:
+ if (vs->clientds.pf.gmax > 0x1F) {
+ if (be) {
+ zrle_encode_16be(vs, x, y, w, h, zywrle_level);
+ } else {
+ zrle_encode_16le(vs, x, y, w, h, zywrle_level);
+ }
+ } else {
+ if (be) {
+ zrle_encode_15be(vs, x, y, w, h, zywrle_level);
+ } else {
+ zrle_encode_15le(vs, x, y, w, h, zywrle_level);
+ }
+ }
+ break;
+
+ case 4:
+ {
+ bool fits_in_ls3bytes;
+ bool fits_in_ms3bytes;
+
+ fits_in_ls3bytes =
+ ((vs->clientds.pf.rmax << vs->clientds.pf.rshift) < (1 << 24) &&
+ (vs->clientds.pf.gmax << vs->clientds.pf.gshift) < (1 << 24) &&
+ (vs->clientds.pf.bmax << vs->clientds.pf.bshift) < (1 << 24));
+
+ fits_in_ms3bytes = (vs->clientds.pf.rshift > 7 &&
+ vs->clientds.pf.gshift > 7 &&
+ vs->clientds.pf.bshift > 7);
+
+ if ((fits_in_ls3bytes && !be) || (fits_in_ms3bytes && be)) {
+ if (be) {
+ zrle_encode_24abe(vs, x, y, w, h, zywrle_level);
+ } else {
+ zrle_encode_24ale(vs, x, y, w, h, zywrle_level);
+ }
+ } else if ((fits_in_ls3bytes && be) || (fits_in_ms3bytes && !be)) {
+ if (be) {
+ zrle_encode_24bbe(vs, x, y, w, h, zywrle_level);
+ } else {
+ zrle_encode_24ble(vs, x, y, w, h, zywrle_level);
+ }
+ } else {
+ if (be) {
+ zrle_encode_32be(vs, x, y, w, h, zywrle_level);
+ } else {
+ zrle_encode_32le(vs, x, y, w, h, zywrle_level);
+ }
+ }
+ }
+ break;
+ }
+
+ vnc_zrle_stop(vs);
+ bytes = zrle_compress_data(vs, Z_DEFAULT_COMPRESSION);
+ vnc_framebuffer_update(vs, x, y, w, h, vs->zrle.type);
+ vnc_write_u32(vs, bytes);
+ vnc_write(vs, vs->zrle.zlib.buffer, vs->zrle.zlib.offset);
+ return 1;
+}
+
+int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
+{
+ vs->zrle.type = VNC_ENCODING_ZRLE;
+ return zrle_send_framebuffer_update(vs, x, y, w, h);
+}
+
+int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
+{
+ vs->zrle.type = VNC_ENCODING_ZYWRLE;
+ return zrle_send_framebuffer_update(vs, x, y, w, h);
+}
+
+void vnc_zrle_clear(VncState *vs)
+{
+ if (vs->zrle.stream.opaque) {
+ deflateEnd(&vs->zrle.stream);
+ }
+ buffer_free(&vs->zrle.zrle);
+ buffer_free(&vs->zrle.fb);
+ buffer_free(&vs->zrle.zlib);
+}
new file mode 100644
@@ -0,0 +1,40 @@
+/*
+ * QEMU VNC display driver: Zlib Run-length Encoding (ZRLE)
+ *
+ * From libvncserver/libvncserver/zrle.c
+ * Copyright (C) 2002 RealVNC Ltd. All Rights Reserved.
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ *
+ * Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef VNC_ENCODING_ZRLE_H
+#define VNC_ENCODING_ZRLE_H
+
+/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * ZRLE - encoding combining Zlib compression, tiling, palettisation and
+ * run-length encoding.
+ */
+
+#define VNC_ZRLE_TILE_WIDTH 64
+#define VNC_ZRLE_TILE_HEIGHT 64
+
+#endif
new file mode 100644
@@ -0,0 +1,170 @@
+
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE 'ZYWRLE' VNC CODEC SOURCE CODE. *
+ * *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A FOLLOWING BSD-STYLE SOURCE LICENSE. *
+ * PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE 'ZYWRLE' VNC CODEC SOURCE CODE IS (C) COPYRIGHT 2006 *
+ * BY Hitachi Systems & Services, Ltd. *
+ * (Noriaki Yamazaki, Research & Developement Center) *
+ * *
+ * *
+ ********************************************************************
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+- Neither the name of the Hitachi Systems & Services, Ltd. nor
+the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ********************************************************************/
+
+/* Change Log:
+ V0.02 : 2008/02/04 : Fix mis encode/decode when width != scanline
+ (Thanks Johannes Schindelin, author of LibVNC
+ Server/Client)
+ V0.01 : 2007/02/06 : Initial release
+*/
+
+/*
+[References]
+ PLHarr:
+ Senecal, J. G., P. Lindstrom, M. A. Duchaineau, and K. I. Joy,
+ "An Improved N-Bit to N-Bit Reversible Haar-Like Transform,"
+ Pacific Graphics 2004, October 2004, pp. 371-380.
+ EZW:
+ Shapiro, JM: Embedded Image Coding Using Zerotrees of Wavelet Coefficients,
+ IEEE Trans. Signal. Process., Vol.41, pp.3445-3462 (1993).
+*/
+
+
+/* Template Macro stuffs. */
+#undef ZYWRLE_ANALYZE
+#undef ZYWRLE_SYNTHESIZE
+
+#define ZYWRLE_SUFFIX ZRLE_CONCAT2(ZRLE_BPP,ZRLE_ENDIAN_SUFFIX)
+
+#define ZYWRLE_ANALYZE ZRLE_CONCAT2(zywrle_analyze_, ZYWRLE_SUFFIX)
+#define ZYWRLE_SYNTHESIZE ZRLE_CONCAT2(zywrle_synthesize_,ZYWRLE_SUFFIX)
+
+#define ZYWRLE_RGBYUV ZRLE_CONCAT2(zywrle_rgbyuv_, ZYWRLE_SUFFIX)
+#define ZYWRLE_YUVRGB ZRLE_CONCAT2(zywrle_yuvrgb_, ZYWRLE_SUFFIX)
+#define ZYWRLE_YMASK ZRLE_CONCAT2(ZYWRLE_YMASK, ZRLE_BPP)
+#define ZYWRLE_UVMASK ZRLE_CONCAT2(ZYWRLE_UVMASK, ZRLE_BPP)
+#define ZYWRLE_LOAD_PIXEL ZRLE_CONCAT2(ZYWRLE_LOAD_PIXEL, ZRLE_BPP)
+#define ZYWRLE_SAVE_PIXEL ZRLE_CONCAT2(ZYWRLE_SAVE_PIXEL, ZRLE_BPP)
+
+/* Packing/Unpacking pixel stuffs.
+ Endian conversion stuffs. */
+#undef S_0
+#undef S_1
+#undef L_0
+#undef L_1
+#undef L_2
+
+#if ZYWRLE_ENDIAN == ENDIAN_BIG
+# define S_0 1
+# define S_1 0
+# define L_0 3
+# define L_1 2
+# define L_2 1
+#else
+# define S_0 0
+# define S_1 1
+# define L_0 0
+# define L_1 1
+# define L_2 2
+#endif
+
+#define ZYWRLE_QUANTIZE
+#include "vnc-enc-zywrle.h"
+
+#ifndef ZRLE_COMPACT_PIXEL
+static inline void ZYWRLE_RGBYUV(int *buf, ZRLE_PIXEL *data,
+ int width, int height, int scanline)
+{
+ int r, g, b;
+ int y, u, v;
+ int *line;
+ int *end;
+
+ end = buf + height * width;
+ while (buf < end) {
+ line = buf + width;
+ while (buf < line) {
+ ZYWRLE_LOAD_PIXEL(data, r, g, b);
+ ZYWRLE_RGBYUV_(r, g, b, y, u, v, ZYWRLE_YMASK, ZYWRLE_UVMASK);
+ ZYWRLE_SAVE_COEFF(buf, v, y, u);
+ buf++;
+ data++;
+ }
+ data += scanline - width;
+ }
+}
+
+static ZRLE_PIXEL *ZYWRLE_ANALYZE(ZRLE_PIXEL *dst, ZRLE_PIXEL *src,
+ int w, int h, int scanline, int level,
+ int *buf) {
+ int l;
+ int uw = w;
+ int uh = h;
+ int *top;
+ int *end;
+ int *line;
+ ZRLE_PIXEL *p;
+ int r, g, b;
+ int s;
+ int *ph;
+
+ zywrle_calc_size(&w, &h, level);
+
+ if (w == 0 || h == 0) {
+ return NULL;
+ }
+ uw -= w;
+ uh -= h;
+
+ p = dst;
+ ZYWRLE_LOAD_UNALIGN(src,*(ZRLE_PIXEL*)top = *p;);
+ ZYWRLE_RGBYUV(buf, src, w, h, scanline);
+ wavelet(buf, w, h, level);
+ for (l = 0; l < level; l++) {
+ ZYWRLE_PACK_COEFF(buf, dst, 3, w, h, scanline, l);
+ ZYWRLE_PACK_COEFF(buf, dst, 2, w, h, scanline, l);
+ ZYWRLE_PACK_COEFF(buf, dst, 1, w, h, scanline, l);
+ if (l == level - 1) {
+ ZYWRLE_PACK_COEFF(buf, dst, 0, w, h, scanline, l);
+ }
+ }
+ ZYWRLE_SAVE_UNALIGN(dst,*dst = *(ZRLE_PIXEL*)top;);
+ return dst;
+}
+#endif /* ZRLE_COMPACT_PIXEL */
+
+#undef ZYWRLE_RGBYUV
+#undef ZYWRLE_YUVRGB
+#undef ZYWRLE_LOAD_PIXEL
+#undef ZYWRLE_SAVE_PIXEL
new file mode 100644
@@ -0,0 +1,652 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE 'ZYWRLE' VNC CODEC SOURCE CODE. *
+ * *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A FOLLOWING BSD-STYLE SOURCE LICENSE. *
+ * PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE 'ZYWRLE' VNC CODEC SOURCE CODE IS (C) COPYRIGHT 2006 *
+ * BY Hitachi Systems & Services, Ltd. *
+ * (Noriaki Yamazaki, Research & Developement Center) *
+ * *
+ * *
+ ********************************************************************
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+- Neither the name of the Hitachi Systems & Services, Ltd. nor
+the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ********************************************************************/
+
+#ifndef VNC_ENCODING_ZYWRLE_H
+#define VNC_ENCODING_ZYWRLE_H
+
+/* Tables for Coefficients filtering. */
+#ifndef ZYWRLE_QUANTIZE
+/* Type A:lower bit omitting of EZW style. */
+const static unsigned int zywrle_param[3][3]={
+ {0x0000F000,0x00000000,0x00000000},
+ {0x0000C000,0x00F0F0F0,0x00000000},
+ {0x0000C000,0x00C0C0C0,0x00F0F0F0},
+/* {0x0000FF00,0x00000000,0x00000000},
+ {0x0000FF00,0x00FFFFFF,0x00000000},
+ {0x0000FF00,0x00FFFFFF,0x00FFFFFF}, */
+};
+#else
+/* Type B:Non liner quantization filter. */
+static const signed char zywrle_conv[4][256]={
+{ /* bi=5, bo=5 r=0.0:PSNR=24.849 */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+},
+{ /* bi=5, bo=5 r=2.0:PSNR=74.031 */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 32,
+ 32, 32, 32, 32, 32, 32, 32, 32,
+ 32, 32, 32, 32, 32, 32, 32, 32,
+ 48, 48, 48, 48, 48, 48, 48, 48,
+ 48, 48, 48, 56, 56, 56, 56, 56,
+ 56, 56, 56, 56, 64, 64, 64, 64,
+ 64, 64, 64, 64, 72, 72, 72, 72,
+ 72, 72, 72, 72, 80, 80, 80, 80,
+ 80, 80, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 96, 96,
+ 96, 96, 96, 104, 104, 104, 104, 104,
+ 104, 104, 104, 104, 104, 112, 112, 112,
+ 112, 112, 112, 112, 112, 112, 120, 120,
+ 120, 120, 120, 120, 120, 120, 120, 120,
+ 0, -120, -120, -120, -120, -120, -120, -120,
+ -120, -120, -120, -112, -112, -112, -112, -112,
+ -112, -112, -112, -112, -104, -104, -104, -104,
+ -104, -104, -104, -104, -104, -104, -96, -96,
+ -96, -96, -96, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -80,
+ -80, -80, -80, -80, -80, -72, -72, -72,
+ -72, -72, -72, -72, -72, -64, -64, -64,
+ -64, -64, -64, -64, -64, -56, -56, -56,
+ -56, -56, -56, -56, -56, -56, -48, -48,
+ -48, -48, -48, -48, -48, -48, -48, -48,
+ -48, -32, -32, -32, -32, -32, -32, -32,
+ -32, -32, -32, -32, -32, -32, -32, -32,
+ -32, -32, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+},
+{ /* bi=5, bo=4 r=2.0:PSNR=64.441 */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 48, 48, 48, 48, 48, 48, 48, 48,
+ 48, 48, 48, 48, 48, 48, 48, 48,
+ 48, 48, 48, 48, 48, 48, 48, 48,
+ 64, 64, 64, 64, 64, 64, 64, 64,
+ 64, 64, 64, 64, 64, 64, 64, 64,
+ 80, 80, 80, 80, 80, 80, 80, 80,
+ 80, 80, 80, 80, 80, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 104, 104, 104, 104, 104, 104, 104, 104,
+ 104, 104, 104, 112, 112, 112, 112, 112,
+ 112, 112, 112, 112, 120, 120, 120, 120,
+ 120, 120, 120, 120, 120, 120, 120, 120,
+ 0, -120, -120, -120, -120, -120, -120, -120,
+ -120, -120, -120, -120, -120, -112, -112, -112,
+ -112, -112, -112, -112, -112, -112, -104, -104,
+ -104, -104, -104, -104, -104, -104, -104, -104,
+ -104, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -80, -80, -80, -80,
+ -80, -80, -80, -80, -80, -80, -80, -80,
+ -80, -64, -64, -64, -64, -64, -64, -64,
+ -64, -64, -64, -64, -64, -64, -64, -64,
+ -64, -48, -48, -48, -48, -48, -48, -48,
+ -48, -48, -48, -48, -48, -48, -48, -48,
+ -48, -48, -48, -48, -48, -48, -48, -48,
+ -48, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+},
+{ /* bi=5, bo=2 r=2.0:PSNR=43.175 */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 88, 88, 88, 88, 88, 88, 88, 88,
+ 0, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, -88, -88, -88, -88, -88, -88, -88,
+ -88, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+}
+};
+
+static const signed char *zywrle_param[3][3][3]={
+ {{zywrle_conv[0], zywrle_conv[2], zywrle_conv[0]},
+ {zywrle_conv[0], zywrle_conv[0], zywrle_conv[0]},
+ {zywrle_conv[0], zywrle_conv[0], zywrle_conv[0]}},
+ {{zywrle_conv[0], zywrle_conv[3], zywrle_conv[0]},
+ {zywrle_conv[1], zywrle_conv[1], zywrle_conv[1]},
+ {zywrle_conv[0], zywrle_conv[0], zywrle_conv[0]}},
+ {{zywrle_conv[0], zywrle_conv[3], zywrle_conv[0]},
+ {zywrle_conv[2], zywrle_conv[2], zywrle_conv[2]},
+ {zywrle_conv[1], zywrle_conv[1], zywrle_conv[1]}},
+};
+#endif
+
+/* Load/Save pixel stuffs. */
+#define ZYWRLE_YMASK15 0xFFFFFFF8
+#define ZYWRLE_UVMASK15 0xFFFFFFF8
+#define ZYWRLE_LOAD_PIXEL15(src, r, g, b) \
+ do { \
+ r = (((uint8_t*)src)[S_1]<< 1)& 0xF8; \
+ g = (((uint8_t*)src)[S_1]<< 6) | (((uint8_t*)src)[S_0]>> 2); \
+ g &= 0xF8; \
+ b = (((uint8_t*)src)[S_0]<< 3)& 0xF8; \
+ } while (0)
+
+#define ZYWRLE_SAVE_PIXEL15(dst, r, g, b) \
+ do { \
+ r &= 0xF8; \
+ g &= 0xF8; \
+ b &= 0xF8; \
+ ((uint8_t*)dst)[S_1] = (uint8_t)((r >> 1)|(g >> 6)); \
+ ((uint8_t*)dst)[S_0] = (uint8_t)(((b >> 3)|(g << 2))& 0xFF); \
+ } while (0)
+
+#define ZYWRLE_YMASK16 0xFFFFFFFC
+#define ZYWRLE_UVMASK16 0xFFFFFFF8
+#define ZYWRLE_LOAD_PIXEL16(src, r, g, b) \
+ do { \
+ r = ((uint8_t*)src)[S_1] & 0xF8; \
+ g = (((uint8_t*)src)[S_1]<< 5) | (((uint8_t*)src)[S_0] >> 3); \
+ g &= 0xFC; \
+ b = (((uint8_t*)src)[S_0]<< 3) & 0xF8; \
+ } while (0)
+
+#define ZYWRLE_SAVE_PIXEL16(dst, r, g,b) \
+ do { \
+ r &= 0xF8; \
+ g &= 0xFC; \
+ b &= 0xF8; \
+ ((uint8_t*)dst)[S_1] = (uint8_t)(r | (g >> 5)); \
+ ((uint8_t*)dst)[S_0] = (uint8_t)(((b >> 3)|(g << 3)) & 0xFF); \
+ } while (0)
+
+#define ZYWRLE_YMASK32 0xFFFFFFFF
+#define ZYWRLE_UVMASK32 0xFFFFFFFF
+#define ZYWRLE_LOAD_PIXEL32(src, r, g, b) \
+ do { \
+ r = ((uint8_t*)src)[L_2]; \
+ g = ((uint8_t*)src)[L_1]; \
+ b = ((uint8_t*)src)[L_0]; \
+ } while (0)
+#define ZYWRLE_SAVE_PIXEL32(dst, r, g, b) \
+ do { \
+ ((uint8_t*)dst)[L_2] = (uint8_t)r; \
+ ((uint8_t*)dst)[L_1] = (uint8_t)g; \
+ ((uint8_t*)dst)[L_0] = (uint8_t)b; \
+ } while (0)
+
+static inline void harr(int8_t *px0, int8_t *px1)
+{
+ /* Piecewise-Linear Harr(PLHarr) */
+ int x0 = (int)*px0, x1 = (int)*px1;
+ int orgx0 = x0, orgx1 = x1;
+
+ if ((x0 ^ x1) & 0x80) {
+ /* differ sign */
+ x1 += x0;
+ if (((x1 ^ orgx1) & 0x80) == 0) {
+ /* |x1| > |x0| */
+ x0 -= x1; /* H = -B */
+ }
+ } else {
+ /* same sign */
+ x0 -= x1;
+ if (((x0 ^ orgx0) & 0x80) == 0) {
+ /* |x0| > |x1| */
+ x1 += x0; /* L = A */
+ }
+ }
+ *px0 = (int8_t)x1;
+ *px1 = (int8_t)x0;
+}
+
+/*
+ 1D-Wavelet transform.
+
+ In coefficients array, the famous 'pyramid' decomposition is well used.
+
+ 1D Model:
+ |L0L0L0L0|L0L0L0L0|H0H0H0H0|H0H0H0H0| : level 0
+ |L1L1L1L1|H1H1H1H1|H0H0H0H0|H0H0H0H0| : level 1
+
+ But this method needs line buffer because H/L is different position from X0/X1.
+ So, I used 'interleave' decomposition instead of it.
+
+ 1D Model:
+ |L0H0L0H0|L0H0L0H0|L0H0L0H0|L0H0L0H0| : level 0
+ |L1H0H1H0|L1H0H1H0|L1H0H1H0|L1H0H1H0| : level 1
+
+ In this method, H/L and X0/X1 is always same position.
+ This lead us to more speed and less memory.
+ Of cause, the result of both method is quite same
+ because it's only difference that coefficient position.
+*/
+static inline void wavelet_level(int *data, int size, int l, int skip_pixel)
+{
+ int s, ofs;
+ int8_t *px0;
+ int8_t *end;
+
+ px0 = (int8_t*)data;
+ s = (8 << l) * skip_pixel;
+ end = px0 + (size >> (l + 1)) * s;
+ s -= 2;
+ ofs = (4 << l) * skip_pixel;
+
+ while (px0 < end) {
+ harr(px0, px0 + ofs);
+ px0++;
+ harr(px0, px0 + ofs);
+ px0++;
+ harr(px0, px0 + ofs);
+ px0 += s;
+ }
+}
+
+#ifndef ZYWRLE_QUANTIZE
+/* Type A:lower bit omitting of EZW style. */
+static inline void filter_wavelet_square(int *buf, int width, int height,
+ int level, int l)
+{
+ int r, s;
+ int x, y;
+ int *h;
+ const unsigned int *m;
+
+ m = &(zywrle_param[level - 1][l]);
+ s = 2 << l;
+
+ for (r = 1; r < 4; r++) {
+ h = buf;
+ if (r & 0x01)
+ h += s >> 1;
+ if (r & 0x02)
+ h += (s >> 1) * width;
+ for (y = 0; y < height / s; y++) {
+ for (x = 0; x < width / s; x++) {
+ /*
+ these are same following code.
+ h[x] = h[x] / (~m[x]+1) * (~m[x]+1);
+ ( round h[x] with m[x] bit )
+ '&' operator isn't 'round' but is 'floor'.
+ So, we must offset when h[x] is negative.
+ */
+ if (((int8_t*)h)[0] & 0x80)
+ ((int8_t*)h)[0] += ~((int8_t*)m)[0];
+ if (((int8_t*)h)[1] & 0x80)
+ ((int8_t*)h)[1] += ~((int8_t*)m)[1];
+ if (((int8_t*)h)[2] & 0x80)
+ ((int8_t*)h)[2] += ~((int8_t*)m)[2];
+ *h &= *m;
+ h += s;
+ }
+ h += (s-1)*width;
+ }
+ }
+}
+#else
+/*
+ Type B:Non liner quantization filter.
+
+ Coefficients have Gaussian curve and smaller value which is
+ large part of coefficients isn't more important than larger value.
+ So, I use filter of Non liner quantize/dequantize table.
+ In general, Non liner quantize formula is explained as following.
+
+ y=f(x) = sign(x)*round( ((abs(x)/(2^7))^ r )* 2^(bo-1) )*2^(8-bo)
+ x=f-1(y) = sign(y)*round( ((abs(y)/(2^7))^(1/r))* 2^(bi-1) )*2^(8-bi)
+ ( r:power coefficient bi:effective MSB in input bo:effective MSB in output )
+
+ r < 1.0 : Smaller value is more important than larger value.
+ r > 1.0 : Larger value is more important than smaller value.
+ r = 1.0 : Liner quantization which is same with EZW style.
+
+ r = 0.75 is famous non liner quantization used in MP3 audio codec.
+ In contrast to audio data, larger value is important in wavelet coefficients.
+ So, I select r = 2.0 table( quantize is x^2, dequantize sqrt(x) ).
+
+ As compared with EZW style liner quantization, this filter tended to be
+ more sharp edge and be more compression rate but be more blocking noise and be
+ less quality. Especially, the surface of graphic objects has distinguishable
+ noise in middle quality mode.
+
+ We need only quantized-dequantized(filtered) value rather than quantized value
+ itself because all values are packed or palette-lized in later ZRLE section.
+ This lead us not to need to modify client decoder when we change
+ the filtering procedure in future.
+ Client only decodes coefficients given by encoder.
+*/
+static inline void filter_wavelet_square(int *buf, int width, int height,
+ int level, int l)
+{
+ int r, s;
+ int x, y;
+ int *h;
+ const int8_t **m;
+
+ m = zywrle_param[level - 1][l];
+ s = 2 << l;
+
+ for (r = 1; r < 4; r++) {
+ h = buf;
+ if (r & 0x01)
+ h += s >> 1;
+ if (r & 0x02)
+ h += (s >> 1) * width;
+ for (y = 0; y < height / s; y++) {
+ for (x = 0; x < width / s; x++) {
+ ((int8_t*)h)[0] = m[0][((uint8_t*)h)[0]];
+ ((int8_t*)h)[1] = m[1][((uint8_t*)h)[1]];
+ ((int8_t*)h)[2] = m[2][((uint8_t*)h)[2]];
+ h += s;
+ }
+ h += (s - 1) * width;
+ }
+ }
+}
+#endif
+
+static inline void wavelet(int *buf, int width, int height, int level)
+{
+ int l, s;
+ int *top;
+ int *end;
+
+ for (l = 0; l < level; l++) {
+ top = buf;
+ end = buf + height * width;
+ s = width << l;
+ while (top < end) {
+ wavelet_level(top, width, l, 1);
+ top += s;
+ }
+ top = buf;
+ end = buf + width;
+ s = 1<<l;
+ while (top < end) {
+ wavelet_level(top, height, l, width);
+ top += s;
+ }
+ filter_wavelet_square(buf, width, height, level, l);
+ }
+}
+
+
+/* Load/Save coefficients stuffs.
+ Coefficients manages as 24 bits little-endian pixel. */
+#define ZYWRLE_LOAD_COEFF(src, r, g, b) \
+ do { \
+ r = ((int8_t*)src)[2]; \
+ g = ((int8_t*)src)[1]; \
+ b = ((int8_t*)src)[0]; \
+ } while (0)
+
+#define ZYWRLE_SAVE_COEFF(dst, r, g, b) \
+ do { \
+ ((int8_t*)dst)[2] = (int8_t)r; \
+ ((int8_t*)dst)[1] = (int8_t)g; \
+ ((int8_t*)dst)[0] = (int8_t)b; \
+ } while (0)
+
+/*
+ RGB <=> YUV conversion stuffs.
+ YUV coversion is explained as following formula in strict meaning:
+ Y = 0.299R + 0.587G + 0.114B ( 0<=Y<=255)
+ U = -0.169R - 0.331G + 0.500B (-128<=U<=127)
+ V = 0.500R - 0.419G - 0.081B (-128<=V<=127)
+
+ I use simple conversion RCT(reversible color transform) which is described
+ in JPEG-2000 specification.
+ Y = (R + 2G + B)/4 ( 0<=Y<=255)
+ U = B-G (-256<=U<=255)
+ V = R-G (-256<=V<=255)
+*/
+
+/* RCT is N-bit RGB to N-bit Y and N+1-bit UV.
+ For make Same N-bit, UV is lossy.
+ More exact PLHarr, we reduce to odd range(-127<=x<=127). */
+#define ZYWRLE_RGBYUV_(r, g, b, y, u, v, ymask, uvmask) \
+ do { \
+ y = (r + (g << 1) + b) >> 2; \
+ u = b - g; \
+ v = r - g; \
+ y -= 128; \
+ u >>= 1; \
+ v >>= 1; \
+ y &= ymask; \
+ u &= uvmask; \
+ v &= uvmask; \
+ if (y == -128) { \
+ y += (0xFFFFFFFF - ymask + 1); \
+ } \
+ if (u == -128) { \
+ u += (0xFFFFFFFF - uvmask + 1); \
+ } \
+ if (v == -128) { \
+ v += (0xFFFFFFFF - uvmask + 1); \
+ } \
+ } while (0)
+
+
+/*
+ coefficient packing/unpacking stuffs.
+ Wavelet transform makes 4 sub coefficient image from 1 original image.
+
+ model with pyramid decomposition:
+ +------+------+
+ | | |
+ | L | Hx |
+ | | |
+ +------+------+
+ | | |
+ | H | Hxy |
+ | | |
+ +------+------+
+
+ So, we must transfer each sub images individually in strict meaning.
+ But at least ZRLE meaning, following one decompositon image is same as
+ avobe individual sub image. I use this format.
+ (Strictly saying, transfer order is reverse(Hxy->Hy->Hx->L)
+ for simplified procedure for any wavelet level.)
+
+ +------+------+
+ | L |
+ +------+------+
+ | Hx |
+ +------+------+
+ | Hy |
+ +------+------+
+ | Hxy |
+ +------+------+
+*/
+#define ZYWRLE_INC_PTR(data) \
+ do { \
+ data++; \
+ if( data - p >= (w + uw) ) { \
+ data += scanline-(w + uw); \
+ p = data; \
+ } \
+ } while (0)
+
+#define ZYWRLE_TRANSFER_COEFF(buf, data, t, w, h, scanline, level, TRANS) \
+ do { \
+ ph = buf; \
+ s = 2 << level; \
+ if (t & 0x01) { \
+ ph += s >> 1; \
+ } \
+ if (t & 0x02) { \
+ ph += (s >> 1) * w; \
+ } \
+ end = ph + h * w; \
+ while (ph < end) { \
+ line = ph + w; \
+ while (ph < line) { \
+ TRANS \
+ ZYWRLE_INC_PTR(data); \
+ ph += s; \
+ } \
+ ph += (s - 1) * w; \
+ } \
+ } while (0)
+
+#define ZYWRLE_PACK_COEFF(buf, data, t, width, height, scanline, level) \
+ ZYWRLE_TRANSFER_COEFF(buf, data, t, width, height, scanline, level, \
+ ZYWRLE_LOAD_COEFF(ph, r, g, b); \
+ ZYWRLE_SAVE_PIXEL(data, r, g, b);)
+
+#define ZYWRLE_UNPACK_COEFF(buf, data, t, width, height, scanline, level) \
+ ZYWRLE_TRANSFER_COEFF(buf, data, t, width, height, scanline, level, \
+ ZYWRLE_LOAD_PIXEL(data, r, g, b); \
+ ZYWRLE_SAVE_COEFF(ph, r, g, b);)
+
+#define ZYWRLE_SAVE_UNALIGN(data, TRANS) \
+ do { \
+ top = buf + w * h; \
+ end = buf + (w + uw) * (h + uh); \
+ while (top < end) { \
+ TRANS \
+ ZYWRLE_INC_PTR(data); \
+ top++; \
+ } \
+ } while (0)
+
+#define ZYWRLE_LOAD_UNALIGN(data,TRANS) \
+ do { \
+ top = buf + w * h; \
+ if (uw) { \
+ p = data + w; \
+ end = (int*)(p + h * scanline); \
+ while (p < (ZRLE_PIXEL*)end) { \
+ line = (int*)(p + uw); \
+ while (p < (ZRLE_PIXEL*)line) { \
+ TRANS \
+ p++; \
+ top++; \
+ } \
+ p += scanline - uw; \
+ } \
+ } \
+ if (uh) { \
+ p = data + h * scanline; \
+ end = (int*)(p + uh * scanline); \
+ while (p < (ZRLE_PIXEL*)end) { \
+ line = (int*)(p + w); \
+ while (p < (ZRLE_PIXEL*)line) { \
+ TRANS \
+ p++; \
+ top++; \
+ } \
+ p += scanline - w; \
+ } \
+ } \
+ if (uw && uh) { \
+ p= data + w + h * scanline; \
+ end = (int*)(p + uh * scanline); \
+ while (p < (ZRLE_PIXEL*)end) { \
+ line = (int*)(p + uw); \
+ while (p < (ZRLE_PIXEL*)line) { \
+ TRANS \
+ p++; \
+ top++; \
+ } \
+ p += scanline-uw; \
+ } \
+ } \
+ } while (0)
+
+static inline void zywrle_calc_size(int *w, int *h, int level)
+{
+ *w &= ~((1 << level) - 1);
+ *h &= ~((1 << level) - 1);
+}
+
+#endif
@@ -172,6 +172,7 @@ static void vnc_async_encoding_start(VncState *orig, VncState *local)
local->tight = orig->tight;
local->zlib = orig->zlib;
local->hextile = orig->hextile;
+ local->zrle = orig->zrle;
local->output = queue->buffer;
local->csock = -1; /* Don't do any network work on this thread */
@@ -183,6 +184,7 @@ static void vnc_async_encoding_end(VncState *orig, VncState *local)
orig->tight = local->tight;
orig->zlib = local->zlib;
orig->hextile = local->hextile;
+ orig->zrle = local->zrle;
orig->lossy_rect = local->lossy_rect;
}
@@ -696,6 +696,12 @@ int vnc_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
case VNC_ENCODING_TIGHT_PNG:
n = vnc_tight_png_send_framebuffer_update(vs, x, y, w, h);
break;
+ case VNC_ENCODING_ZRLE:
+ n = vnc_zrle_send_framebuffer_update(vs, x, y, w, h);
+ break;
+ case VNC_ENCODING_ZYWRLE:
+ n = vnc_zywrle_send_framebuffer_update(vs, x, y, w, h);
+ break;
default:
vnc_framebuffer_update(vs, x, y, w, h, VNC_ENCODING_RAW);
n = vnc_raw_send_framebuffer_update(vs, x, y, w, h);
@@ -1028,6 +1034,7 @@ static void vnc_disconnect_finish(VncState *vs)
vnc_zlib_clear(vs);
vnc_tight_clear(vs);
+ vnc_zrle_clear(vs);
#ifdef CONFIG_VNC_TLS
vnc_tls_client_cleanup(vs);
@@ -1766,6 +1773,14 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
vs->features |= VNC_FEATURE_ZLIB_MASK;
vs->vnc_encoding = enc;
break;
+ case VNC_ENCODING_ZRLE:
+ vs->features |= VNC_FEATURE_ZRLE_MASK;
+ vs->vnc_encoding = enc;
+ break;
+ case VNC_ENCODING_ZYWRLE:
+ vs->features |= VNC_FEATURE_ZYWRLE_MASK;
+ vs->vnc_encoding = enc;
+ break;
case VNC_ENCODING_DESKTOPRESIZE:
vs->features |= VNC_FEATURE_RESIZE_MASK;
break;
@@ -39,6 +39,8 @@
#include <stdbool.h>
#include "keymaps.h"
+#include "vnc-palette.h"
+#include "vnc-enc-zrle.h"
// #define _VNC_DEBUG 1
@@ -179,6 +181,20 @@ typedef struct VncZlib {
int level;
} VncZlib;
+typedef struct VncZrle {
+ int type;
+ Buffer fb;
+ Buffer zrle;
+ Buffer tmp;
+ Buffer zlib;
+ z_stream stream;
+ VncPalette palette;
+} VncZrle;
+
+typedef struct VncZywrle {
+ int buf[VNC_ZRLE_TILE_WIDTH * VNC_ZRLE_TILE_HEIGHT];
+} VncZywrle;
+
#ifdef CONFIG_VNC_THREAD
struct VncRect
{
@@ -272,7 +288,8 @@ struct VncState
VncTight tight;
VncZlib zlib;
VncHextile hextile;
-
+ VncZrle zrle;
+ VncZywrle zywrle;
Notifier mouse_mode_notifier;
@@ -376,6 +393,8 @@ enum {
#define VNC_FEATURE_COPYRECT 6
#define VNC_FEATURE_RICH_CURSOR 7
#define VNC_FEATURE_TIGHT_PNG 8
+#define VNC_FEATURE_ZRLE 9
+#define VNC_FEATURE_ZYWRLE 10
#define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE)
#define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE)
@@ -386,6 +405,8 @@ enum {
#define VNC_FEATURE_COPYRECT_MASK (1 << VNC_FEATURE_COPYRECT)
#define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR)
#define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG)
+#define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE)
+#define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE)
/* Client -> Server message IDs */
@@ -520,4 +541,8 @@ int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y,
int w, int h);
void vnc_tight_clear(VncState *vs);
+int vnc_zrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
+int vnc_zywrle_send_framebuffer_update(VncState *vs, int x, int y, int w, int h);
+void vnc_zrle_clear(VncState *vs);
+
#endif /* __QEMU_VNC_H */
Add ZRLE [1] and ZYWRLE [2] encodings. The code is inspire^W stolen from libvncserver (again), but have been rewriten to match QEMU coding style. [1] http://www.realvnc.com/docs/rfbproto.pdf [2] http://micro-vnc.jp/research/remote_desktop_ng/ZYWRLE/publications/ Signed-off-by: Corentin Chary <corentincj@iksaif.net> --- Makefile.objs | 1 + ui/vnc-enc-zrle-template.c | 275 ++++++++++++++++++ ui/vnc-enc-zrle.c | 389 +++++++++++++++++++++++++ ui/vnc-enc-zrle.h | 40 +++ ui/vnc-enc-zywrle-template.c | 170 +++++++++++ ui/vnc-enc-zywrle.h | 652 ++++++++++++++++++++++++++++++++++++++++++ ui/vnc-jobs-async.c | 2 + ui/vnc.c | 15 + ui/vnc.h | 27 ++- 9 files changed, 1570 insertions(+), 1 deletions(-) create mode 100644 ui/vnc-enc-zrle-template.c create mode 100644 ui/vnc-enc-zrle.c create mode 100644 ui/vnc-enc-zrle.h create mode 100644 ui/vnc-enc-zywrle-template.c create mode 100644 ui/vnc-enc-zywrle.h