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xrdp-proprietary/libxrdp/xrdp_bitmap_compress.c

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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2013
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* bitmap compressor
*/
#include "libxrdp.h"
/*****************************************************************************/
#define IN_PIXEL8(in_ptr, in_x, in_y, in_w, in_last_pixel, in_pixel); \
{ \
if (in_ptr == 0) \
{ \
in_pixel = 0; \
} \
else if (in_x < in_w) \
{ \
in_pixel = GETPIXEL8(in_ptr, in_x, in_y, in_w); \
} \
else \
{ \
in_pixel = in_last_pixel; \
} \
}
/*****************************************************************************/
#define IN_PIXEL16(in_ptr, in_x, in_y, in_w, in_last_pixel, in_pixel); \
{ \
if (in_ptr == 0) \
{ \
in_pixel = 0; \
} \
else if (in_x < in_w) \
{ \
in_pixel = GETPIXEL16(in_ptr, in_x, in_y, in_w); \
} \
else \
{ \
in_pixel = in_last_pixel; \
} \
}
/*****************************************************************************/
#define IN_PIXEL32(in_ptr, in_x, in_y, in_w, in_last_pixel, in_pixel); \
{ \
if (in_ptr == 0) \
{ \
in_pixel = 0; \
} \
else if (in_x < in_w) \
{ \
in_pixel = GETPIXEL32(in_ptr, in_x, in_y, in_w); \
} \
else \
{ \
in_pixel = in_last_pixel; \
} \
}
/*****************************************************************************/
/* color */
#define OUT_COLOR_COUNT1(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x3 << 5) | in_count; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_data); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x60); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_data); \
} \
else \
{ \
out_uint8(in_s, 0xf3); \
out_uint16_le(in_s, in_count); \
out_uint8(in_s, in_data); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* color */
#define OUT_COLOR_COUNT2(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x3 << 5) | in_count; \
out_uint8(in_s, temp); \
out_uint16_le(in_s, in_data); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x60); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
out_uint16_le(in_s, in_data); \
} \
else \
{ \
out_uint8(in_s, 0xf3); \
out_uint16_le(in_s, in_count); \
out_uint16_le(in_s, in_data); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* color */
#define OUT_COLOR_COUNT3(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x3 << 5) | in_count; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_data & 0xff); \
out_uint8(in_s, (in_data >> 8) & 0xff); \
out_uint8(in_s, (in_data >> 16) & 0xff); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x60); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_data & 0xff); \
out_uint8(in_s, (in_data >> 8) & 0xff); \
out_uint8(in_s, (in_data >> 16) & 0xff); \
} \
else \
{ \
out_uint8(in_s, 0xf3); \
out_uint16_le(in_s, in_count); \
out_uint8(in_s, in_data & 0xff); \
out_uint8(in_s, (in_data >> 8) & 0xff); \
out_uint8(in_s, (in_data >> 16) & 0xff); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* copy */
#define OUT_COPY_COUNT1(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x4 << 5) | in_count; \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_data->data, in_count); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x80); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_data->data, in_count); \
} \
else \
{ \
out_uint8(in_s, 0xf4); \
out_uint16_le(in_s, in_count); \
out_uint8a(in_s, in_data->data, in_count); \
} \
} \
in_count = 0; \
init_stream(in_data, 0); \
}
/*****************************************************************************/
/* copy */
#define OUT_COPY_COUNT2(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x4 << 5) | in_count; \
out_uint8(in_s, temp); \
temp = in_count * 2; \
out_uint8a(in_s, in_data->data, temp); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x80); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
temp = in_count * 2; \
out_uint8a(in_s, in_data->data, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf4); \
out_uint16_le(in_s, in_count); \
temp = in_count * 2; \
out_uint8a(in_s, in_data->data, temp); \
} \
} \
in_count = 0; \
init_stream(in_data, 0); \
}
/*****************************************************************************/
/* copy */
#define OUT_COPY_COUNT3(in_count, in_s, in_data) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x4 << 5) | in_count; \
out_uint8(in_s, temp); \
temp = in_count * 3; \
out_uint8a(in_s, in_data->end, temp); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x80); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
temp = in_count * 3; \
out_uint8a(in_s, in_data->end, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf4); \
out_uint16_le(in_s, in_count); \
temp = in_count * 3; \
out_uint8a(in_s, in_data->end, temp); \
} \
} \
in_count = 0; \
init_stream(in_data, 0); \
}
/*****************************************************************************/
/* bicolor */
#define OUT_BICOLOR_COUNT1(in_count, in_s, in_color1, in_color2) \
{ \
if (in_count > 0) \
{ \
if (in_count / 2 < 16) \
{ \
temp = (0xe << 4) | (in_count / 2); \
out_uint8(in_s, temp); \
out_uint8(in_s, in_color1); \
out_uint8(in_s, in_color2); \
} \
else if (in_count / 2 < 256 + 16) \
{ \
out_uint8(in_s, 0xe0); \
temp = in_count / 2 - 16; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_color1); \
out_uint8(in_s, in_color2); \
} \
else \
{ \
out_uint8(in_s, 0xf8); \
temp = in_count / 2; \
out_uint16_le(in_s, temp); \
out_uint8(in_s, in_color1); \
out_uint8(in_s, in_color2); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* bicolor */
#define OUT_BICOLOR_COUNT2(in_count, in_s, in_color1, in_color2) \
{ \
if (in_count > 0) \
{ \
if (in_count / 2 < 16) \
{ \
temp = (0xe << 4) | (in_count / 2); \
out_uint8(in_s, temp); \
out_uint16_le(in_s, in_color1); \
out_uint16_le(in_s, in_color2); \
} \
else if (in_count / 2 < 256 + 16) \
{ \
out_uint8(in_s, 0xe0); \
temp = in_count / 2 - 16; \
out_uint8(in_s, temp); \
out_uint16_le(in_s, in_color1); \
out_uint16_le(in_s, in_color2); \
} \
else \
{ \
out_uint8(in_s, 0xf8); \
temp = in_count / 2; \
out_uint16_le(in_s, temp); \
out_uint16_le(in_s, in_color1); \
out_uint16_le(in_s, in_color2); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* bicolor */
#define OUT_BICOLOR_COUNT3(in_count, in_s, in_color1, in_color2) \
{ \
if (in_count > 0) \
{ \
if (in_count / 2 < 16) \
{ \
temp = (0xe << 4) | (in_count / 2); \
out_uint8(in_s, temp); \
out_uint8(in_s, in_color1 & 0xff); \
out_uint8(in_s, (in_color1 >> 8) & 0xff); \
out_uint8(in_s, (in_color1 >> 16) & 0xff); \
out_uint8(in_s, in_color2 & 0xff); \
out_uint8(in_s, (in_color2 >> 8) & 0xff); \
out_uint8(in_s, (in_color2 >> 16) & 0xff); \
} \
else if (in_count / 2 < 256 + 16) \
{ \
out_uint8(in_s, 0xe0); \
temp = in_count / 2 - 16; \
out_uint8(in_s, temp); \
out_uint8(in_s, in_color1 & 0xff); \
out_uint8(in_s, (in_color1 >> 8) & 0xff); \
out_uint8(in_s, (in_color1 >> 16) & 0xff); \
out_uint8(in_s, in_color2 & 0xff); \
out_uint8(in_s, (in_color2 >> 8) & 0xff); \
out_uint8(in_s, (in_color2 >> 16) & 0xff); \
} \
else \
{ \
out_uint8(in_s, 0xf8); \
temp = in_count / 2; \
out_uint16_le(in_s, temp); \
out_uint8(in_s, in_color1 & 0xff); \
out_uint8(in_s, (in_color1 >> 8) & 0xff); \
out_uint8(in_s, (in_color1 >> 16) & 0xff); \
out_uint8(in_s, in_color2 & 0xff); \
out_uint8(in_s, (in_color2 >> 8) & 0xff); \
out_uint8(in_s, (in_color2 >> 16) & 0xff); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fill */
#define OUT_FILL_COUNT1(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
out_uint8(in_s, in_count); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x0); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf0); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fill */
#define OUT_FILL_COUNT2(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
out_uint8(in_s, in_count); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x0); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf0); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fill */
#define OUT_FILL_COUNT3(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
out_uint8(in_s, in_count); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x0); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf0); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* mix */
#define OUT_MIX_COUNT1(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x1 << 5) | in_count; \
out_uint8(in_s, temp); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x20); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf1); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* mix */
#define OUT_MIX_COUNT2(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x1 << 5) | in_count; \
out_uint8(in_s, temp); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x20); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf1); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* mix */
#define OUT_MIX_COUNT3(in_count, in_s) \
{ \
if (in_count > 0) \
{ \
if (in_count < 32) \
{ \
temp = (0x1 << 5) | in_count; \
out_uint8(in_s, temp); \
} \
else if (in_count < 256 + 32) \
{ \
out_uint8(in_s, 0x20); \
temp = in_count - 32; \
out_uint8(in_s, temp); \
} \
else \
{ \
out_uint8(in_s, 0xf1); \
out_uint16_le(in_s, in_count); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fom */
#define OUT_FOM_COUNT1(in_count, in_s, in_mask, in_mask_len) \
{ \
if (in_count > 0) \
{ \
if ((in_count % 8) == 0 && in_count < 249) \
{ \
temp = (0x2 << 5) | (in_count / 8); \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else if (in_count < 256) \
{ \
out_uint8(in_s, 0x40); \
temp = in_count - 1; \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else \
{ \
out_uint8(in_s, 0xf2); \
out_uint16_le(in_s, in_count); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fom */
#define OUT_FOM_COUNT2(in_count, in_s, in_mask, in_mask_len) \
{ \
if (in_count > 0) \
{ \
if ((in_count % 8) == 0 && in_count < 249) \
{ \
temp = (0x2 << 5) | (in_count / 8); \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else if (in_count < 256) \
{ \
out_uint8(in_s, 0x40); \
temp = in_count - 1; \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else \
{ \
out_uint8(in_s, 0xf2); \
out_uint16_le(in_s, in_count); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
/* fill or mix (fom) */
#define OUT_FOM_COUNT3(in_count, in_s, in_mask, in_mask_len) \
{ \
if (in_count > 0) \
{ \
if ((in_count % 8) == 0 && in_count < 249) \
{ \
temp = (0x2 << 5) | (in_count / 8); \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else if (in_count < 256) \
{ \
out_uint8(in_s, 0x40); \
temp = in_count - 1; \
out_uint8(in_s, temp); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
else \
{ \
out_uint8(in_s, 0xf2); \
out_uint16_le(in_s, in_count); \
out_uint8a(in_s, in_mask, in_mask_len); \
} \
} \
in_count = 0; \
}
/*****************************************************************************/
#define TEST_FILL \
((last_line == 0 && pixel == 0) || \
(last_line != 0 && pixel == ypixel))
#define TEST_MIX \
((last_line == 0 && pixel == mix) || \
(last_line != 0 && pixel == (ypixel ^ mix)))
#define TEST_FOM (TEST_FILL || TEST_MIX)
#define TEST_COLOR (pixel == last_pixel)
#define TEST_BICOLOR \
( \
(pixel != last_pixel) && \
( \
(!bicolor_spin && pixel == bicolor1 && last_pixel == bicolor2) || \
(bicolor_spin && pixel == bicolor2 && last_pixel == bicolor1) \
) \
)
#define RESET_COUNTS \
{ \
bicolor_count = 0; \
fill_count = 0; \
color_count = 0; \
mix_count = 0; \
fom_count = 0; \
fom_mask_len = 0; \
bicolor_spin = 0; \
}
/*****************************************************************************/
int APP_CC
xrdp_bitmap_compress(char *in_data, int width, int height,
struct stream *s, int bpp, int byte_limit,
int start_line, struct stream *temp_s,
int e)
{
char *line;
char *last_line;
char fom_mask[8192]; /* good for up to 64K bitmap */
int lines_sent;
int pixel;
int count;
int color_count;
int last_pixel;
int bicolor_count;
int bicolor1;
int bicolor2;
int bicolor_spin;
int end;
int i;
int out_count;
int ypixel;
int last_ypixel;
int fill_count;
int mix_count;
int mix;
int fom_count;
int fom_mask_len;
int temp; /* used in macros */
init_stream(temp_s, 0);
fom_mask_len = 0;
last_line = 0;
lines_sent = 0;
end = width + e;
count = 0;
color_count = 0;
last_pixel = 0;
last_ypixel = 0;
bicolor_count = 0;
bicolor1 = 0;
bicolor2 = 0;
bicolor_spin = 0;
fill_count = 0;
mix_count = 0;
fom_count = 0;
if (bpp == 8)
{
mix = 0xff;
out_count = end;
line = in_data + width * start_line;
while (start_line >= 0 && out_count < 32768)
{
i = (s->p - s->data) + count;
if (i - color_count >= byte_limit &&
i - bicolor_count >= byte_limit &&
i - fill_count >= byte_limit &&
i - mix_count >= byte_limit &&
i - fom_count >= byte_limit)
{
break;
}
out_count += end;
for (i = 0; i < end; i++)
{
/* read next pixel */
IN_PIXEL8(line, i, 0, width, last_pixel, pixel);
IN_PIXEL8(last_line, i, 0, width, last_ypixel, ypixel);
if (!TEST_FILL)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FILL_COUNT1(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
}
if (!TEST_MIX)
{
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_MIX_COUNT1(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
}
if (!TEST_COLOR)
{
if (color_count > 3 &&
color_count >= fill_count &&
color_count >= bicolor_count &&
color_count >= mix_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_COLOR_COUNT1(color_count, s, last_pixel);
RESET_COUNTS;
}
color_count = 0;
}
if (!TEST_BICOLOR)
{
if (bicolor_count > 3 &&
bicolor_count >= fill_count &&
bicolor_count >= color_count &&
bicolor_count >= mix_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_BICOLOR_COUNT1(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_BICOLOR_COUNT1(bicolor_count, s, bicolor2, bicolor1);
}
RESET_COUNTS;
}
bicolor_count = 0;
bicolor1 = last_pixel;
bicolor2 = pixel;
bicolor_spin = 0;
}
if (!TEST_FOM)
{
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FOM_COUNT1(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
if (TEST_FILL)
{
fill_count++;
}
if (TEST_MIX)
{
mix_count++;
}
if (TEST_COLOR)
{
color_count++;
}
if (TEST_BICOLOR)
{
bicolor_spin = !bicolor_spin;
bicolor_count++;
}
if (TEST_FOM)
{
if ((fom_count % 8) == 0)
{
fom_mask[fom_mask_len] = 0;
fom_mask_len++;
}
if (pixel == (ypixel ^ mix))
{
fom_mask[fom_mask_len - 1] |= (1 << (fom_count % 8));
}
fom_count++;
}
out_uint8(temp_s, pixel);
count++;
last_pixel = pixel;
last_ypixel = ypixel;
}
/* can't take fix, mix, or fom past first line */
if (last_line == 0)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FILL_COUNT1(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_MIX_COUNT1(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FOM_COUNT1(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
last_line = line;
line = line - width;
start_line--;
lines_sent++;
}
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FILL_COUNT1(fill_count, s);
}
else if (mix_count > 3 &&
mix_count >= color_count &&
mix_count >= bicolor_count &&
mix_count >= fill_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_MIX_COUNT1(mix_count, s);
}
else if (color_count > 3 &&
color_count >= mix_count &&
color_count >= bicolor_count &&
color_count >= fill_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_COLOR_COUNT1(color_count, s, last_pixel);
}
else if (bicolor_count > 3 &&
bicolor_count >= mix_count &&
bicolor_count >= color_count &&
bicolor_count >= fill_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_BICOLOR_COUNT1(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_BICOLOR_COUNT1(bicolor_count, s, bicolor2, bicolor1);
}
count -= bicolor_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_BICOLOR_COUNT1(bicolor_count, s, bicolor1, bicolor2);
}
else if (fom_count > 3 &&
fom_count >= mix_count &&
fom_count >= color_count &&
fom_count >= fill_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT1(count, s, temp_s);
OUT_FOM_COUNT1(fom_count, s, fom_mask, fom_mask_len);
}
else
{
OUT_COPY_COUNT1(count, s, temp_s);
}
}
else if ((bpp == 15) || (bpp == 16))
{
mix = (bpp == 15) ? 0xba1f : 0xffff;
out_count = end * 2;
line = in_data + width * start_line * 2;
while (start_line >= 0 && out_count < 32768)
{
i = (s->p - s->data) + count * 2;
if (i - (color_count * 2) >= byte_limit &&
i - (bicolor_count * 2) >= byte_limit &&
i - (fill_count * 2) >= byte_limit &&
i - (mix_count * 2) >= byte_limit &&
i - (fom_count * 2) >= byte_limit)
{
break;
}
out_count += end * 2;
for (i = 0; i < end; i++)
{
/* read next pixel */
IN_PIXEL16(line, i, 0, width, last_pixel, pixel);
IN_PIXEL16(last_line, i, 0, width, last_ypixel, ypixel);
if (!TEST_FILL)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FILL_COUNT2(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
}
if (!TEST_MIX)
{
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_MIX_COUNT2(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
}
if (!TEST_COLOR)
{
if (color_count > 3 &&
color_count >= fill_count &&
color_count >= bicolor_count &&
color_count >= mix_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_COLOR_COUNT2(color_count, s, last_pixel);
RESET_COUNTS;
}
color_count = 0;
}
if (!TEST_BICOLOR)
{
if (bicolor_count > 3 &&
bicolor_count >= fill_count &&
bicolor_count >= color_count &&
bicolor_count >= mix_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor2, bicolor1);
}
RESET_COUNTS;
}
bicolor_count = 0;
bicolor1 = last_pixel;
bicolor2 = pixel;
bicolor_spin = 0;
}
if (!TEST_FOM)
{
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FOM_COUNT2(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
if (TEST_FILL)
{
fill_count++;
}
if (TEST_MIX)
{
mix_count++;
}
if (TEST_COLOR)
{
color_count++;
}
if (TEST_BICOLOR)
{
bicolor_spin = !bicolor_spin;
bicolor_count++;
}
if (TEST_FOM)
{
if ((fom_count % 8) == 0)
{
fom_mask[fom_mask_len] = 0;
fom_mask_len++;
}
if (pixel == (ypixel ^ mix))
{
fom_mask[fom_mask_len - 1] |= (1 << (fom_count % 8));
}
fom_count++;
}
out_uint16_le(temp_s, pixel);
count++;
last_pixel = pixel;
last_ypixel = ypixel;
}
/* can't take fix, mix, or fom past first line */
if (last_line == 0)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FILL_COUNT2(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_MIX_COUNT2(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FOM_COUNT2(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
last_line = line;
line = line - width * 2;
start_line--;
lines_sent++;
}
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FILL_COUNT2(fill_count, s);
}
else if (mix_count > 3 &&
mix_count >= color_count &&
mix_count >= bicolor_count &&
mix_count >= fill_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_MIX_COUNT2(mix_count, s);
}
else if (color_count > 3 &&
color_count >= mix_count &&
color_count >= bicolor_count &&
color_count >= fill_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_COLOR_COUNT2(color_count, s, last_pixel);
}
else if (bicolor_count > 3 &&
bicolor_count >= mix_count &&
bicolor_count >= color_count &&
bicolor_count >= fill_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor2, bicolor1);
}
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor1, bicolor2);
}
else if (fom_count > 3 &&
fom_count >= mix_count &&
fom_count >= color_count &&
fom_count >= fill_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_FOM_COUNT2(fom_count, s, fom_mask, fom_mask_len);
}
else
{
OUT_COPY_COUNT2(count, s, temp_s);
}
}
else if (bpp == 24)
{
mix = 0xffffff;
out_count = end * 3;
line = in_data + width * start_line * 4;
while (start_line >= 0 && out_count < 32768)
{
i = (s->p - s->data) + count * 3;
if (i - (color_count * 3) >= byte_limit &&
i - (bicolor_count * 3) >= byte_limit &&
i - (fill_count * 3) >= byte_limit &&
i - (mix_count * 3) >= byte_limit &&
i - (fom_count * 3) >= byte_limit)
{
break;
}
out_count += end * 3;
for (i = 0; i < end; i++)
{
/* read next pixel */
IN_PIXEL32(line, i, 0, width, last_pixel, pixel);
IN_PIXEL32(last_line, i, 0, width, last_ypixel, ypixel);
if (!TEST_FILL)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FILL_COUNT3(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
}
if (!TEST_MIX)
{
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_MIX_COUNT3(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
}
if (!TEST_COLOR)
{
if (color_count > 3 &&
color_count >= fill_count &&
color_count >= bicolor_count &&
color_count >= mix_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_COLOR_COUNT3(color_count, s, last_pixel);
RESET_COUNTS;
}
color_count = 0;
}
if (!TEST_BICOLOR)
{
if (bicolor_count > 3 &&
bicolor_count >= fill_count &&
bicolor_count >= color_count &&
bicolor_count >= mix_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor2, bicolor1);
}
RESET_COUNTS;
}
bicolor_count = 0;
bicolor1 = last_pixel;
bicolor2 = pixel;
bicolor_spin = 0;
}
if (!TEST_FOM)
{
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FOM_COUNT3(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
if (TEST_FILL)
{
fill_count++;
}
if (TEST_MIX)
{
mix_count++;
}
if (TEST_COLOR)
{
color_count++;
}
if (TEST_BICOLOR)
{
bicolor_spin = !bicolor_spin;
bicolor_count++;
}
if (TEST_FOM)
{
if ((fom_count % 8) == 0)
{
fom_mask[fom_mask_len] = 0;
fom_mask_len++;
}
if (pixel == (ypixel ^ mix))
{
fom_mask[fom_mask_len - 1] |= (1 << (fom_count % 8));
}
fom_count++;
}
out_uint8(temp_s, pixel & 0xff);
out_uint8(temp_s, (pixel >> 8) & 0xff);
out_uint8(temp_s, (pixel >> 16) & 0xff);
count++;
last_pixel = pixel;
last_ypixel = ypixel;
}
/* can't take fix, mix, or fom past first line */
if (last_line == 0)
{
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FILL_COUNT3(fill_count, s);
RESET_COUNTS;
}
fill_count = 0;
if (mix_count > 3 &&
mix_count >= fill_count &&
mix_count >= bicolor_count &&
mix_count >= color_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_MIX_COUNT3(mix_count, s);
RESET_COUNTS;
}
mix_count = 0;
if (fom_count > 3 &&
fom_count >= fill_count &&
fom_count >= color_count &&
fom_count >= mix_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FOM_COUNT3(fom_count, s, fom_mask, fom_mask_len);
RESET_COUNTS;
}
fom_count = 0;
fom_mask_len = 0;
}
last_line = line;
line = line - width * 4;
start_line--;
lines_sent++;
}
if (fill_count > 3 &&
fill_count >= color_count &&
fill_count >= bicolor_count &&
fill_count >= mix_count &&
fill_count >= fom_count)
{
count -= fill_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FILL_COUNT3(fill_count, s);
}
else if (mix_count > 3 &&
mix_count >= color_count &&
mix_count >= bicolor_count &&
mix_count >= fill_count &&
mix_count >= fom_count)
{
count -= mix_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_MIX_COUNT3(mix_count, s);
}
else if (color_count > 3 &&
color_count >= mix_count &&
color_count >= bicolor_count &&
color_count >= fill_count &&
color_count >= fom_count)
{
count -= color_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_COLOR_COUNT3(color_count, s, last_pixel);
}
else if (bicolor_count > 3 &&
bicolor_count >= mix_count &&
bicolor_count >= color_count &&
bicolor_count >= fill_count &&
bicolor_count >= fom_count)
{
if ((bicolor_count % 2) == 0)
{
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor1, bicolor2);
}
else
{
bicolor_count--;
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor2, bicolor1);
}
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor1, bicolor2);
}
else if (fom_count > 3 &&
fom_count >= mix_count &&
fom_count >= color_count &&
fom_count >= fill_count &&
fom_count >= bicolor_count)
{
count -= fom_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_FOM_COUNT3(fom_count, s, fom_mask, fom_mask_len);
}
else
{
OUT_COPY_COUNT3(count, s, temp_s);
}
}
return lines_sent;
}
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