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vnc: encapsulate encoding members

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This will allow to implement the threaded VNC server in a
more cleaner way.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Corentin Chary 2010-07-07 20:57:59 +02:00 committed by Anthony Liguori
parent 5136a05269
commit d1af0e056a
5 changed files with 163 additions and 156 deletions
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14
ui/vnc-enc-hextile.c
View File

@ -75,7 +75,7 @@ int vnc_hextile_send_framebuffer_update(VncState *vs, int x,
has_fg = has_bg = 0;
for (j = y; j < (y + h); j += 16) {
for (i = x; i < (x + w); i += 16) {
vs->send_hextile_tile(vs, i, j,
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);
}
@ -91,25 +91,25 @@ void vnc_hextile_set_pixel_conversion(VncState *vs, int generic)
if (!generic) {
switch (vs->ds->surface->pf.bits_per_pixel) {
case 8:
vs->send_hextile_tile = send_hextile_tile_8;
vs->hextile.send_tile = send_hextile_tile_8;
break;
case 16:
vs->send_hextile_tile = send_hextile_tile_16;
vs->hextile.send_tile = send_hextile_tile_16;
break;
case 32:
vs->send_hextile_tile = send_hextile_tile_32;
vs->hextile.send_tile = send_hextile_tile_32;
break;
}
} else {
switch (vs->ds->surface->pf.bits_per_pixel) {
case 8:
vs->send_hextile_tile = send_hextile_tile_generic_8;
vs->hextile.send_tile = send_hextile_tile_generic_8;
break;
case 16:
vs->send_hextile_tile = send_hextile_tile_generic_16;
vs->hextile.send_tile = send_hextile_tile_generic_16;
break;
case 32:
vs->send_hextile_tile = send_hextile_tile_generic_32;
vs->hextile.send_tile = send_hextile_tile_generic_32;
break;
}
}

204
ui/vnc-enc-tight.c
View File

@ -93,7 +93,7 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
static bool tight_can_send_png_rect(VncState *vs, int w, int h)
{
if (vs->tight_type != VNC_ENCODING_TIGHT_PNG) {
if (vs->tight.type != VNC_ENCODING_TIGHT_PNG) {
return false;
}
@ -121,7 +121,7 @@ tight_detect_smooth_image24(VncState *vs, int w, int h)
int pixels = 0;
int pix, left[3];
uint errors;
unsigned char *buf = vs->tight.buffer;
unsigned char *buf = vs->tight.tight.buffer;
/*
* If client is big-endian, color samples begin from the second
@ -188,7 +188,7 @@ tight_detect_smooth_image24(VncState *vs, int w, int h)
int pixels = 0; \
int sample, sum, left[3]; \
uint errors; \
unsigned char *buf = vs->tight.buffer; \
unsigned char *buf = vs->tight.tight.buffer; \
\
endian = ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) != \
(vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG)); \
@ -268,8 +268,8 @@ static int
tight_detect_smooth_image(VncState *vs, int w, int h)
{
uint errors;
int compression = vs->tight_compression;
int quality = vs->tight_quality;
int compression = vs->tight.compression;
int quality = vs->tight.quality;
if (!vs->vd->lossy) {
return 0;
@ -281,7 +281,7 @@ tight_detect_smooth_image(VncState *vs, int w, int h)
return 0;
}
if (vs->tight_quality != -1) {
if (vs->tight.quality != -1) {
if (w * h < VNC_TIGHT_JPEG_MIN_RECT_SIZE) {
return 0;
}
@ -292,9 +292,9 @@ tight_detect_smooth_image(VncState *vs, int w, int h)
}
if (vs->clientds.pf.bytes_per_pixel == 4) {
if (vs->tight_pixel24) {
if (vs->tight.pixel24) {
errors = tight_detect_smooth_image24(vs, w, h);
if (vs->tight_quality != -1) {
if (vs->tight.quality != -1) {
return (errors < tight_conf[quality].jpeg_threshold24);
}
return (errors < tight_conf[compression].gradient_threshold24);
@ -324,7 +324,7 @@ tight_detect_smooth_image(VncState *vs, int w, int h)
uint##bpp##_t c0, c1, ci; \
int i, n0, n1; \
\
data = (uint##bpp##_t *)vs->tight.buffer; \
data = (uint##bpp##_t *)vs->tight.tight.buffer; \
\
c0 = data[0]; \
i = 1; \
@ -395,9 +395,9 @@ static int tight_fill_palette(VncState *vs, int x, int y,
{
int max;
max = count / tight_conf[vs->tight_compression].idx_max_colors_divisor;
max = count / tight_conf[vs->tight.compression].idx_max_colors_divisor;
if (max < 2 &&
count >= tight_conf[vs->tight_compression].mono_min_rect_size) {
count >= tight_conf[vs->tight.compression].mono_min_rect_size) {
max = 2;
}
if (max >= 256) {
@ -529,7 +529,7 @@ tight_filter_gradient24(VncState *vs, uint8_t *buf, int w, int h)
int x, y, c;
buf32 = (uint32_t *)buf;
memset(vs->tight_gradient.buffer, 0, w * 3 * sizeof(int));
memset(vs->tight.gradient.buffer, 0, w * 3 * sizeof(int));
if ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) ==
(vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG)) {
@ -547,7 +547,7 @@ tight_filter_gradient24(VncState *vs, uint8_t *buf, int w, int h)
upper[c] = 0;
here[c] = 0;
}
prev = (int *)vs->tight_gradient.buffer;
prev = (int *)vs->tight.gradient.buffer;
for (x = 0; x < w; x++) {
pix32 = *buf32++;
for (c = 0; c < 3; c++) {
@ -587,7 +587,7 @@ tight_filter_gradient24(VncState *vs, uint8_t *buf, int w, int h)
int prediction; \
int x, y, c; \
\
memset (vs->tight_gradient.buffer, 0, w * 3 * sizeof(int)); \
memset (vs->tight.gradient.buffer, 0, w * 3 * sizeof(int)); \
\
endian = ((vs->clientds.flags & QEMU_BIG_ENDIAN_FLAG) != \
(vs->ds->surface->flags & QEMU_BIG_ENDIAN_FLAG)); \
@ -604,7 +604,7 @@ tight_filter_gradient24(VncState *vs, uint8_t *buf, int w, int h)
upper[c] = 0; \
here[c] = 0; \
} \
prev = (int *)vs->tight_gradient.buffer; \
prev = (int *)vs->tight.gradient.buffer; \
for (x = 0; x < w; x++) { \
pix = *buf; \
if (endian) { \
@ -774,7 +774,7 @@ static void extend_solid_area(VncState *vs, int x, int y, int w, int h,
static int tight_init_stream(VncState *vs, int stream_id,
int level, int strategy)
{
z_streamp zstream = &vs->tight_stream[stream_id];
z_streamp zstream = &vs->tight.stream[stream_id];
if (zstream->opaque == NULL) {
int err;
@ -792,15 +792,15 @@ static int tight_init_stream(VncState *vs, int stream_id,
return -1;
}
vs->tight_levels[stream_id] = level;
vs->tight.levels[stream_id] = level;
zstream->opaque = vs;
}
if (vs->tight_levels[stream_id] != level) {
if (vs->tight.levels[stream_id] != level) {
if (deflateParams(zstream, level, strategy) != Z_OK) {
return -1;
}
vs->tight_levels[stream_id] = level;
vs->tight.levels[stream_id] = level;
}
return 0;
}
@ -828,11 +828,11 @@ static void tight_send_compact_size(VncState *vs, size_t len)
static int tight_compress_data(VncState *vs, int stream_id, size_t bytes,
int level, int strategy)
{
z_streamp zstream = &vs->tight_stream[stream_id];
z_streamp zstream = &vs->tight.stream[stream_id];
int previous_out;
if (bytes < VNC_TIGHT_MIN_TO_COMPRESS) {
vnc_write(vs, vs->tight.buffer, vs->tight.offset);
vnc_write(vs, vs->tight.tight.buffer, vs->tight.tight.offset);
return bytes;
}
@ -841,13 +841,13 @@ static int tight_compress_data(VncState *vs, int stream_id, size_t bytes,
}
/* reserve memory in output buffer */
buffer_reserve(&vs->tight_zlib, bytes + 64);
buffer_reserve(&vs->tight.zlib, bytes + 64);
/* set pointers */
zstream->next_in = vs->tight.buffer;
zstream->avail_in = vs->tight.offset;
zstream->next_out = vs->tight_zlib.buffer + vs->tight_zlib.offset;
zstream->avail_out = vs->tight_zlib.capacity - vs->tight_zlib.offset;
zstream->next_in = vs->tight.tight.buffer;
zstream->avail_in = vs->tight.tight.offset;
zstream->next_out = vs->tight.zlib.buffer + vs->tight.zlib.offset;
zstream->avail_out = vs->tight.zlib.capacity - vs->tight.zlib.offset;
zstream->data_type = Z_BINARY;
previous_out = zstream->total_out;
@ -857,13 +857,13 @@ static int tight_compress_data(VncState *vs, int stream_id, size_t bytes,
return -1;
}
vs->tight_zlib.offset = vs->tight_zlib.capacity - zstream->avail_out;
vs->tight.zlib.offset = vs->tight.zlib.capacity - zstream->avail_out;
bytes = zstream->total_out - previous_out;
tight_send_compact_size(vs, bytes);
vnc_write(vs, vs->tight_zlib.buffer, bytes);
vnc_write(vs, vs->tight.zlib.buffer, bytes);
buffer_reset(&vs->tight_zlib);
buffer_reset(&vs->tight.zlib);
return bytes;
}
@ -915,15 +915,15 @@ static int send_full_color_rect(VncState *vs, int x, int y, int w, int h)
vnc_write_u8(vs, stream << 4); /* no flushing, no filter */
if (vs->tight_pixel24) {
tight_pack24(vs, vs->tight.buffer, w * h, &vs->tight.offset);
if (vs->tight.pixel24) {
tight_pack24(vs, vs->tight.tight.buffer, w * h, &vs->tight.tight.offset);
bytes = 3;
} else {
bytes = vs->clientds.pf.bytes_per_pixel;
}
bytes = tight_compress_data(vs, stream, w * h * bytes,
tight_conf[vs->tight_compression].raw_zlib_level,
tight_conf[vs->tight.compression].raw_zlib_level,
Z_DEFAULT_STRATEGY);
return (bytes >= 0);
@ -935,14 +935,14 @@ static int send_solid_rect(VncState *vs)
vnc_write_u8(vs, VNC_TIGHT_FILL << 4); /* no flushing, no filter */
if (vs->tight_pixel24) {
tight_pack24(vs, vs->tight.buffer, 1, &vs->tight.offset);
if (vs->tight.pixel24) {
tight_pack24(vs, vs->tight.tight.buffer, 1, &vs->tight.tight.offset);
bytes = 3;
} else {
bytes = vs->clientds.pf.bytes_per_pixel;
}
vnc_write(vs, vs->tight.buffer, bytes);
vnc_write(vs, vs->tight.tight.buffer, bytes);
return 1;
}
@ -951,7 +951,7 @@ static int send_mono_rect(VncState *vs, int x, int y,
{
size_t bytes;
int stream = 1;
int level = tight_conf[vs->tight_compression].mono_zlib_level;
int level = tight_conf[vs->tight.compression].mono_zlib_level;
#ifdef CONFIG_VNC_PNG
if (tight_can_send_png_rect(vs, w, h)) {
@ -979,26 +979,26 @@ static int send_mono_rect(VncState *vs, int x, int y,
uint32_t buf[2] = {bg, fg};
size_t ret = sizeof (buf);
if (vs->tight_pixel24) {
if (vs->tight.pixel24) {
tight_pack24(vs, (unsigned char*)buf, 2, &ret);
}
vnc_write(vs, buf, ret);
tight_encode_mono_rect32(vs->tight.buffer, w, h, bg, fg);
tight_encode_mono_rect32(vs->tight.tight.buffer, w, h, bg, fg);
break;
}
case 2:
vnc_write(vs, &bg, 2);
vnc_write(vs, &fg, 2);
tight_encode_mono_rect16(vs->tight.buffer, w, h, bg, fg);
tight_encode_mono_rect16(vs->tight.tight.buffer, w, h, bg, fg);
break;
default:
vnc_write_u8(vs, bg);
vnc_write_u8(vs, fg);
tight_encode_mono_rect8(vs->tight.buffer, w, h, bg, fg);
tight_encode_mono_rect8(vs->tight.tight.buffer, w, h, bg, fg);
break;
}
vs->tight.offset = bytes;
vs->tight.tight.offset = bytes;
bytes = tight_compress_data(vs, stream, bytes, level, Z_DEFAULT_STRATEGY);
return (bytes >= 0);
@ -1028,7 +1028,7 @@ static void write_palette(int idx, uint32_t color, void *opaque)
static bool send_gradient_rect(VncState *vs, int x, int y, int w, int h)
{
int stream = 3;
int level = tight_conf[vs->tight_compression].gradient_zlib_level;
int level = tight_conf[vs->tight.compression].gradient_zlib_level;
size_t bytes;
if (vs->clientds.pf.bytes_per_pixel == 1)
@ -1037,23 +1037,23 @@ static bool send_gradient_rect(VncState *vs, int x, int y, int w, int h)
vnc_write_u8(vs, (stream | VNC_TIGHT_EXPLICIT_FILTER) << 4);
vnc_write_u8(vs, VNC_TIGHT_FILTER_GRADIENT);
buffer_reserve(&vs->tight_gradient, w * 3 * sizeof (int));
buffer_reserve(&vs->tight.gradient, w * 3 * sizeof (int));
if (vs->tight_pixel24) {
tight_filter_gradient24(vs, vs->tight.buffer, w, h);
if (vs->tight.pixel24) {
tight_filter_gradient24(vs, vs->tight.tight.buffer, w, h);
bytes = 3;
} else if (vs->clientds.pf.bytes_per_pixel == 4) {
tight_filter_gradient32(vs, (uint32_t *)vs->tight.buffer, w, h);
tight_filter_gradient32(vs, (uint32_t *)vs->tight.tight.buffer, w, h);
bytes = 4;
} else {
tight_filter_gradient16(vs, (uint16_t *)vs->tight.buffer, w, h);
tight_filter_gradient16(vs, (uint16_t *)vs->tight.tight.buffer, w, h);
bytes = 2;
}
buffer_reset(&vs->tight_gradient);
buffer_reset(&vs->tight.gradient);
bytes = w * h * bytes;
vs->tight.offset = bytes;
vs->tight.tight.offset = bytes;
bytes = tight_compress_data(vs, stream, bytes,
level, Z_FILTERED);
@ -1064,7 +1064,7 @@ static int send_palette_rect(VncState *vs, int x, int y,
int w, int h, VncPalette *palette)
{
int stream = 2;
int level = tight_conf[vs->tight_compression].idx_zlib_level;
int level = tight_conf[vs->tight.compression].idx_zlib_level;
int colors;
size_t bytes;
@ -1091,12 +1091,12 @@ static int send_palette_rect(VncState *vs, int x, int y,
palette_iter(palette, write_palette, &priv);
vnc_write(vs, header, sizeof(header));
if (vs->tight_pixel24) {
if (vs->tight.pixel24) {
tight_pack24(vs, vs->output.buffer + old_offset, colors, &offset);
vs->output.offset = old_offset + offset;
}
tight_encode_indexed_rect32(vs->tight.buffer, w * h, palette);
tight_encode_indexed_rect32(vs->tight.tight.buffer, w * h, palette);
break;
}
case 2:
@ -1106,7 +1106,7 @@ static int send_palette_rect(VncState *vs, int x, int y,
palette_iter(palette, write_palette, &priv);
vnc_write(vs, header, sizeof(header));
tight_encode_indexed_rect16(vs->tight.buffer, w * h, palette);
tight_encode_indexed_rect16(vs->tight.tight.buffer, w * h, palette);
break;
}
default:
@ -1114,7 +1114,7 @@ static int send_palette_rect(VncState *vs, int x, int y,
break;
}
bytes = w * h;
vs->tight.offset = bytes;
vs->tight.tight.offset = bytes;
bytes = tight_compress_data(vs, stream, bytes,
level, Z_DEFAULT_STRATEGY);
@ -1180,7 +1180,7 @@ DEFINE_RGB_GET_ROW_FUNCTION(32)
static void rgb_prepare_row(VncState *vs, uint8_t *dst, int x, int y,
int count)
{
if (vs->tight_pixel24)
if (vs->tight.pixel24)
rgb_prepare_row24(vs, dst, x, y, count);
else if (ds_get_bytes_per_pixel(vs->ds) == 4)
rgb_prepare_row32(vs, dst, x, y, count);
@ -1201,7 +1201,7 @@ static void rgb_prepare_row(VncState *vs, uint8_t *dst, int x, int y,
static void jpeg_init_destination(j_compress_ptr cinfo)
{
VncState *vs = cinfo->client_data;
Buffer *buffer = &vs->tight_jpeg;
Buffer *buffer = &vs->tight.jpeg;
cinfo->dest->next_output_byte = (JOCTET *)buffer->buffer + buffer->offset;
cinfo->dest->free_in_buffer = (size_t)(buffer->capacity - buffer->offset);
@ -1211,7 +1211,7 @@ static void jpeg_init_destination(j_compress_ptr cinfo)
static boolean jpeg_empty_output_buffer(j_compress_ptr cinfo)
{
VncState *vs = cinfo->client_data;
Buffer *buffer = &vs->tight_jpeg;
Buffer *buffer = &vs->tight.jpeg;
buffer->offset = buffer->capacity;
buffer_reserve(buffer, 2048);
@ -1223,7 +1223,7 @@ static boolean jpeg_empty_output_buffer(j_compress_ptr cinfo)
static void jpeg_term_destination(j_compress_ptr cinfo)
{
VncState *vs = cinfo->client_data;
Buffer *buffer = &vs->tight_jpeg;
Buffer *buffer = &vs->tight.jpeg;
buffer->offset = buffer->capacity - cinfo->dest->free_in_buffer;
}
@ -1240,7 +1240,7 @@ static int send_jpeg_rect(VncState *vs, int x, int y, int w, int h, int quality)
if (ds_get_bytes_per_pixel(vs->ds) == 1)
return send_full_color_rect(vs, x, y, w, h);
buffer_reserve(&vs->tight_jpeg, 2048);
buffer_reserve(&vs->tight.jpeg, 2048);
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
@ -1274,9 +1274,9 @@ static int send_jpeg_rect(VncState *vs, int x, int y, int w, int h, int quality)
vnc_write_u8(vs, VNC_TIGHT_JPEG << 4);
tight_send_compact_size(vs, vs->tight_jpeg.offset);
vnc_write(vs, vs->tight_jpeg.buffer, vs->tight_jpeg.offset);
buffer_reset(&vs->tight_jpeg);
tight_send_compact_size(vs, vs->tight.jpeg.offset);
vnc_write(vs, vs->tight.jpeg.buffer, vs->tight.jpeg.offset);
buffer_reset(&vs->tight.jpeg);
return 1;
}
@ -1292,7 +1292,7 @@ static void write_png_palette(int idx, uint32_t pix, void *opaque)
VncState *vs = priv->vs;
png_colorp color = &priv->png_palette[idx];
if (vs->tight_pixel24)
if (vs->tight.pixel24)
{
color->red = (pix >> vs->clientds.pf.rshift) & vs->clientds.pf.rmax;
color->green = (pix >> vs->clientds.pf.gshift) & vs->clientds.pf.gmax;
@ -1319,10 +1319,10 @@ static void png_write_data(png_structp png_ptr, png_bytep data,
{
VncState *vs = png_get_io_ptr(png_ptr);
buffer_reserve(&vs->tight_png, vs->tight_png.offset + length);
memcpy(vs->tight_png.buffer + vs->tight_png.offset, data, length);
buffer_reserve(&vs->tight.png, vs->tight.png.offset + length);
memcpy(vs->tight.png.buffer + vs->tight.png.offset, data, length);
vs->tight_png.offset += length;
vs->tight.png.offset += length;
}
static void png_flush_data(png_structp png_ptr)
@ -1347,8 +1347,8 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
png_infop info_ptr;
png_colorp png_palette = NULL;
size_t offset;
int level = tight_png_conf[vs->tight_compression].png_zlib_level;
int filters = tight_png_conf[vs->tight_compression].png_filters;
int level = tight_png_conf[vs->tight.compression].png_zlib_level;
int filters = tight_png_conf[vs->tight.compression].png_filters;
uint8_t *buf;
int dy;
@ -1391,22 +1391,22 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
png_set_PLTE(png_ptr, info_ptr, png_palette, palette_size(palette));
offset = vs->tight.offset;
offset = vs->tight.tight.offset;
if (vs->clientds.pf.bytes_per_pixel == 4) {
tight_encode_indexed_rect32(vs->tight.buffer, w * h, palette);
tight_encode_indexed_rect32(vs->tight.tight.buffer, w * h, palette);
} else {
tight_encode_indexed_rect16(vs->tight.buffer, w * h, palette);
tight_encode_indexed_rect16(vs->tight.tight.buffer, w * h, palette);
}
}
png_write_info(png_ptr, info_ptr);
buffer_reserve(&vs->tight_png, 2048);
buffer_reserve(&vs->tight.png, 2048);
buf = qemu_malloc(w * 3);
for (dy = 0; dy < h; dy++)
{
if (color_type == PNG_COLOR_TYPE_PALETTE) {
memcpy(buf, vs->tight.buffer + (dy * w), w);
memcpy(buf, vs->tight.tight.buffer + (dy * w), w);
} else {
rgb_prepare_row(vs, buf, x, y + dy, w);
}
@ -1424,27 +1424,27 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
vnc_write_u8(vs, VNC_TIGHT_PNG << 4);
tight_send_compact_size(vs, vs->tight_png.offset);
vnc_write(vs, vs->tight_png.buffer, vs->tight_png.offset);
buffer_reset(&vs->tight_png);
tight_send_compact_size(vs, vs->tight.png.offset);
vnc_write(vs, vs->tight.png.buffer, vs->tight.png.offset);
buffer_reset(&vs->tight.png);
return 1;
}
#endif /* CONFIG_VNC_PNG */
static void vnc_tight_start(VncState *vs)
{
buffer_reset(&vs->tight);
buffer_reset(&vs->tight.tight);
// make the output buffer be the zlib buffer, so we can compress it later
vs->tight_tmp = vs->output;
vs->output = vs->tight;
vs->tight.tmp = vs->output;
vs->output = vs->tight.tight;
}
static void vnc_tight_stop(VncState *vs)
{
// switch back to normal output/zlib buffers
vs->tight = vs->output;
vs->output = vs->tight_tmp;
vs->tight.tight = vs->output;
vs->output = vs->tight.tmp;
}
static int send_sub_rect(VncState *vs, int x, int y, int w, int h)
@ -1454,7 +1454,7 @@ static int send_sub_rect(VncState *vs, int x, int y, int w, int h)
int colors;
int ret = 0;
vnc_framebuffer_update(vs, x, y, w, h, vs->tight_type);
vnc_framebuffer_update(vs, x, y, w, h, vs->tight.type);
vnc_tight_start(vs);
vnc_raw_send_framebuffer_update(vs, x, y, w, h);
@ -1464,11 +1464,11 @@ static int send_sub_rect(VncState *vs, int x, int y, int w, int h)
if (colors == 0) {
if (tight_detect_smooth_image(vs, w, h)) {
if (vs->tight_quality == -1) {
if (vs->tight.quality == -1) {
ret = send_gradient_rect(vs, x, y, w, h);
} else {
#ifdef CONFIG_VNC_JPEG
int quality = tight_conf[vs->tight_quality].jpeg_quality;
int quality = tight_conf[vs->tight.quality].jpeg_quality;
ret = send_jpeg_rect(vs, x, y, w, h, quality);
#else
@ -1484,9 +1484,9 @@ static int send_sub_rect(VncState *vs, int x, int y, int w, int h)
ret = send_mono_rect(vs, x, y, w, h, bg, fg);
} else if (colors <= 256) {
#ifdef CONFIG_VNC_JPEG
if (colors > 96 && vs->tight_quality != -1 && vs->tight_quality <= 3 &&
if (colors > 96 && vs->tight.quality != -1 && vs->tight.quality <= 3 &&
tight_detect_smooth_image(vs, w, h)) {
int quality = tight_conf[vs->tight_quality].jpeg_quality;
int quality = tight_conf[vs->tight.quality].jpeg_quality;
ret = send_jpeg_rect(vs, x, y, w, h, quality);
} else {
@ -1502,7 +1502,7 @@ static int send_sub_rect(VncState *vs, int x, int y, int w, int h)
static int send_sub_rect_solid(VncState *vs, int x, int y, int w, int h)
{
vnc_framebuffer_update(vs, x, y, w, h, vs->tight_type);
vnc_framebuffer_update(vs, x, y, w, h, vs->tight.type);
vnc_tight_start(vs);
vnc_raw_send_framebuffer_update(vs, x, y, w, h);
@ -1519,8 +1519,8 @@ static int send_rect_simple(VncState *vs, int x, int y, int w, int h)
int rw, rh;
int n = 0;
max_size = tight_conf[vs->tight_compression].max_rect_size;
max_width = tight_conf[vs->tight_compression].max_rect_width;
max_size = tight_conf[vs->tight.compression].max_rect_size;
max_width = tight_conf[vs->tight.compression].max_rect_width;
if (w > max_width || w * h > max_size) {
max_sub_width = (w > max_width) ? max_width : w;
@ -1629,9 +1629,9 @@ static int tight_send_framebuffer_update(VncState *vs, int x, int y,
if (vs->clientds.pf.bytes_per_pixel == 4 && vs->clientds.pf.rmax == 0xFF &&
vs->clientds.pf.bmax == 0xFF && vs->clientds.pf.gmax == 0xFF) {
vs->tight_pixel24 = true;
vs->tight.pixel24 = true;
} else {
vs->tight_pixel24 = false;
vs->tight.pixel24 = false;
}
if (w * h < VNC_TIGHT_MIN_SPLIT_RECT_SIZE)
@ -1639,8 +1639,8 @@ static int tight_send_framebuffer_update(VncState *vs, int x, int y,
/* Calculate maximum number of rows in one non-solid rectangle. */
max_rows = tight_conf[vs->tight_compression].max_rect_size;
max_rows /= MIN(tight_conf[vs->tight_compression].max_rect_width, w);
max_rows = tight_conf[vs->tight.compression].max_rect_size;
max_rows /= MIN(tight_conf[vs->tight.compression].max_rect_width, w);
return find_large_solid_color_rect(vs, x, y, w, h, max_rows);
}
@ -1648,30 +1648,30 @@ static int tight_send_framebuffer_update(VncState *vs, int x, int y,
int vnc_tight_send_framebuffer_update(VncState *vs, int x, int y,
int w, int h)
{
vs->tight_type = VNC_ENCODING_TIGHT;
vs->tight.type = VNC_ENCODING_TIGHT;
return tight_send_framebuffer_update(vs, x, y, w, h);
}
int vnc_tight_png_send_framebuffer_update(VncState *vs, int x, int y,
int w, int h)
{
vs->tight_type = VNC_ENCODING_TIGHT_PNG;
vs->tight.type = VNC_ENCODING_TIGHT_PNG;
return tight_send_framebuffer_update(vs, x, y, w, h);
}
void vnc_tight_clear(VncState *vs)
{
int i;
for (i=0; i<ARRAY_SIZE(vs->tight_stream); i++) {
if (vs->tight_stream[i].opaque) {
deflateEnd(&vs->tight_stream[i]);
for (i=0; i<ARRAY_SIZE(vs->tight.stream); i++) {
if (vs->tight.stream[i].opaque) {
deflateEnd(&vs->tight.stream[i]);
}
}
buffer_free(&vs->tight);
buffer_free(&vs->tight_zlib);
buffer_free(&vs->tight_gradient);
buffer_free(&vs->tight.tight);
buffer_free(&vs->tight.zlib);
buffer_free(&vs->tight.gradient);
#ifdef CONFIG_VNC_JPEG
buffer_free(&vs->tight_jpeg);
buffer_free(&vs->tight.jpeg);
#endif
}

34
ui/vnc-enc-zlib.c
View File

@ -47,21 +47,21 @@ void vnc_zlib_zfree(void *x, void *addr)
static void vnc_zlib_start(VncState *vs)
{
buffer_reset(&vs->zlib);
buffer_reset(&vs->zlib.zlib);
// make the output buffer be the zlib buffer, so we can compress it later
vs->zlib_tmp = vs->output;
vs->output = vs->zlib;
vs->zlib.tmp = vs->output;
vs->output = vs->zlib.zlib;
}
static int vnc_zlib_stop(VncState *vs)
{
z_streamp zstream = &vs->zlib_stream;
z_streamp zstream = &vs->zlib.stream;
int previous_out;
// switch back to normal output/zlib buffers
vs->zlib = vs->output;
vs->output = vs->zlib_tmp;
vs->zlib.zlib = vs->output;
vs->output = vs->zlib.tmp;
// compress the zlib buffer
@ -75,7 +75,7 @@ static int vnc_zlib_stop(VncState *vs)
zstream->zalloc = vnc_zlib_zalloc;
zstream->zfree = vnc_zlib_zfree;
err = deflateInit2(zstream, vs->tight_compression, Z_DEFLATED, MAX_WBITS,
err = deflateInit2(zstream, vs->tight.compression, Z_DEFLATED, MAX_WBITS,
MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
if (err != Z_OK) {
@ -83,24 +83,24 @@ static int vnc_zlib_stop(VncState *vs)
return -1;
}
vs->zlib_level = vs->tight_compression;
vs->zlib.level = vs->tight.compression;
zstream->opaque = vs;
}
if (vs->tight_compression != vs->zlib_level) {
if (deflateParams(zstream, vs->tight_compression,
if (vs->tight.compression != vs->zlib.level) {
if (deflateParams(zstream, vs->tight.compression,
Z_DEFAULT_STRATEGY) != Z_OK) {
return -1;
}
vs->zlib_level = vs->tight_compression;
vs->zlib.level = vs->tight.compression;
}
// reserve memory in output buffer
buffer_reserve(&vs->output, vs->zlib.offset + 64);
buffer_reserve(&vs->output, vs->zlib.zlib.offset + 64);
// set pointers
zstream->next_in = vs->zlib.buffer;
zstream->avail_in = vs->zlib.offset;
zstream->next_in = vs->zlib.zlib.buffer;
zstream->avail_in = vs->zlib.zlib.offset;
zstream->next_out = vs->output.buffer + vs->output.offset;
zstream->avail_out = vs->output.capacity - vs->output.offset;
zstream->data_type = Z_BINARY;
@ -145,8 +145,8 @@ int vnc_zlib_send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
void vnc_zlib_clear(VncState *vs)
{
if (vs->zlib_stream.opaque) {
deflateEnd(&vs->zlib_stream);
if (vs->zlib.stream.opaque) {
deflateEnd(&vs->zlib.stream);
}
buffer_free(&vs->zlib);
buffer_free(&vs->zlib.zlib);
}

8
ui/vnc.c
View File

@ -1642,8 +1642,8 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
vs->features = 0;
vs->vnc_encoding = 0;
vs->tight_compression = 9;
vs->tight_quality = -1; /* Lossless by default */
vs->tight.compression = 9;
vs->tight.quality = -1; /* Lossless by default */
vs->absolute = -1;
/*
@ -1695,10 +1695,10 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
vs->features |= VNC_FEATURE_WMVI_MASK;
break;
case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
vs->tight_compression = (enc & 0x0F);
vs->tight.compression = (enc & 0x0F);
break;
case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
vs->tight_quality = (enc & 0x0F);
vs->tight.quality = (enc & 0x0F);
break;
default:
VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);

59
ui/vnc.h
View File

@ -122,6 +122,36 @@ struct VncDisplay
#endif
};
typedef struct VncTight {
int type;
uint8_t quality;
uint8_t compression;
uint8_t pixel24;
Buffer tight;
Buffer tmp;
Buffer zlib;
Buffer gradient;
#ifdef CONFIG_VNC_JPEG
Buffer jpeg;
#endif
#ifdef CONFIG_VNC_PNG
Buffer png;
#endif
int levels[4];
z_stream stream[4];
} VncTight;
typedef struct VncHextile {
VncSendHextileTile *send_tile;
} VncHextile;
typedef struct VncZlib {
Buffer zlib;
Buffer tmp;
z_stream stream;
int level;
} VncZlib;
struct VncState
{
int csock;
@ -170,33 +200,10 @@ struct VncState
QEMUPutLEDEntry *led;
/* Encoding specific */
VncTight tight;
VncZlib zlib;
VncHextile hextile;
/* Tight */
int tight_type;
uint8_t tight_quality;
uint8_t tight_compression;
uint8_t tight_pixel24;
Buffer tight;
Buffer tight_tmp;
Buffer tight_zlib;
Buffer tight_gradient;
#ifdef CONFIG_VNC_JPEG
Buffer tight_jpeg;
#endif
#ifdef CONFIG_VNC_PNG
Buffer tight_png;
#endif
int tight_levels[4];
z_stream tight_stream[4];
/* Hextile */
VncSendHextileTile *send_hextile_tile;
/* Zlib */
Buffer zlib;
Buffer zlib_tmp;
z_stream zlib_stream;
int zlib_level;
Notifier mouse_mode_notifier;