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508238711c
FreeRDP/libfreerdp/codec/bitmap.c
akallabeth 15456e1ee1
[warnings] fix implicit widening conversion
2024-08-29 10:47:20 +02:00

1095 lines
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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Bitmap Compression
*
* Copyright 2004-2012 Jay Sorg <jay.sorg@gmail.com>
*
* 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.
*/
#include <freerdp/config.h>
#include <freerdp/codec/bitmap.h>
#include <freerdp/codec/planar.h>
static INLINE UINT16 GETPIXEL16(const void* WINPR_RESTRICT d, UINT32 x, UINT32 y, UINT32 w)
{
const BYTE* WINPR_RESTRICT src = (const BYTE*)d + ((y * w + x) * sizeof(UINT16));
return (UINT16)(((UINT16)src[1] << 8) | (UINT16)src[0]);
}
static INLINE UINT32 GETPIXEL32(const void* WINPR_RESTRICT d, UINT32 x, UINT32 y, UINT32 w)
{
const BYTE* WINPR_RESTRICT src = (const BYTE*)d + ((y * w + x) * sizeof(UINT32));
return (((UINT32)src[3]) << 24) | (((UINT32)src[2]) << 16) | (((UINT32)src[1]) << 8) |
(src[0] & 0xFF);
}
/*****************************************************************************/
static INLINE UINT16 IN_PIXEL16(const void* WINPR_RESTRICT in_ptr, UINT32 in_x, UINT32 in_y,
UINT32 in_w, UINT16 in_last_pixel)
{
if (in_ptr == 0)
return 0;
else if (in_x < in_w)
return GETPIXEL16(in_ptr, in_x, in_y, in_w);
else
return in_last_pixel;
}
/*****************************************************************************/
static INLINE UINT32 IN_PIXEL32(const void* WINPR_RESTRICT in_ptr, UINT32 in_x, UINT32 in_y,
UINT32 in_w, UINT32 in_last_pixel)
{
if (in_ptr == 0)
return 0;
else if (in_x < in_w)
return GETPIXEL32(in_ptr, in_x, in_y, in_w);
else
return in_last_pixel;
}
/*****************************************************************************/
/* color */
static INLINE UINT16 out_color_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
UINT16 in_data)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x3 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x60);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf3);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write_UINT16(in_s, in_data);
}
return 0;
}
#define OUT_COLOR_COUNT2(in_count, in_s, in_data) \
in_count = out_color_count_2(in_count, in_s, in_data)
/*****************************************************************************/
/* color */
static INLINE UINT16 out_color_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
UINT32 in_data)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x3 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x60);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf3);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write_UINT8(in_s, in_data & 0xFF);
Stream_Write_UINT8(in_s, (in_data >> 8) & 0xFF);
Stream_Write_UINT8(in_s, (in_data >> 16) & 0xFF);
}
return 0;
}
#define OUT_COLOR_COUNT3(in_count, in_s, in_data) \
in_count = out_color_count_3(in_count, in_s, in_data)
/*****************************************************************************/
/* copy */
static INLINE UINT16 out_copy_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
wStream* WINPR_RESTRICT in_data)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x4 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x80);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf4);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write(in_s, Stream_Buffer(in_data), 2ULL * in_count);
}
Stream_SetPosition(in_data, 0);
return 0;
}
#define OUT_COPY_COUNT2(in_count, in_s, in_data) \
in_count = out_copy_count_2(in_count, in_s, in_data)
/*****************************************************************************/
/* copy */
static INLINE UINT16 out_copy_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
wStream* WINPR_RESTRICT in_data)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x4 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x80);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf4);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write(in_s, Stream_Pointer(in_data), 3ULL * in_count);
}
Stream_SetPosition(in_data, 0);
return 0;
}
#define OUT_COPY_COUNT3(in_count, in_s, in_data) \
in_count = out_copy_count_3(in_count, in_s, in_data)
/*****************************************************************************/
/* bicolor */
static INLINE UINT16 out_bicolor_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
UINT16 in_color1, UINT16 in_color2)
{
if (in_count > 0)
{
if (in_count / 2 < 16)
{
const BYTE temp = ((0xe << 4) | (in_count / 2)) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count / 2 < 256 + 16)
{
const BYTE temp = (in_count / 2 - 16) & 0xFF;
Stream_Write_UINT8(in_s, 0xe0);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf8);
Stream_Write_UINT16(in_s, in_count / 2);
}
Stream_Write_UINT16(in_s, in_color1);
Stream_Write_UINT16(in_s, in_color2);
}
return 0;
}
#define OUT_BICOLOR_COUNT2(in_count, in_s, in_color1, in_color2) \
in_count = out_bicolor_count_2(in_count, in_s, in_color1, in_color2)
/*****************************************************************************/
/* bicolor */
static INLINE UINT16 out_bicolor_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
UINT32 in_color1, UINT32 in_color2)
{
if (in_count > 0)
{
if (in_count / 2 < 16)
{
const BYTE temp = ((0xe << 4) | (in_count / 2)) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count / 2 < 256 + 16)
{
const BYTE temp = (in_count / 2 - 16) & 0xFF;
Stream_Write_UINT8(in_s, 0xe0);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf8);
Stream_Write_UINT16(in_s, in_count / 2);
}
Stream_Write_UINT8(in_s, in_color1 & 0xFF);
Stream_Write_UINT8(in_s, (in_color1 >> 8) & 0xFF);
Stream_Write_UINT8(in_s, (in_color1 >> 16) & 0xFF);
Stream_Write_UINT8(in_s, in_color2 & 0xFF);
Stream_Write_UINT8(in_s, (in_color2 >> 8) & 0xFF);
Stream_Write_UINT8(in_s, (in_color2 >> 16) & 0xFF);
}
return 0;
}
#define OUT_BICOLOR_COUNT3(in_count, in_s, in_color1, in_color2) \
in_count = out_bicolor_count_3(in_count, in_s, in_color1, in_color2)
/*****************************************************************************/
/* fill */
static INLINE UINT16 out_fill_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s)
{
if (in_count > 0)
{
if (in_count < 32)
{
Stream_Write_UINT8(in_s, in_count & 0xFF);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x0);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf0);
Stream_Write_UINT16(in_s, in_count);
}
}
return 0;
}
#define OUT_FILL_COUNT2(in_count, in_s) in_count = out_fill_count_2(in_count, in_s)
/*****************************************************************************/
/* fill */
static INLINE UINT16 out_fill_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s)
{
if (in_count > 0)
{
if (in_count < 32)
{
Stream_Write_UINT8(in_s, in_count & 0xFF);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x0);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf0);
Stream_Write_UINT16(in_s, in_count);
}
}
return 0;
}
#define OUT_FILL_COUNT3(in_count, in_s) in_count = out_fill_count_3(in_count, in_s)
/*****************************************************************************/
/* mix */
static INLINE UINT16 out_mix_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x1 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x20);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf1);
Stream_Write_UINT16(in_s, in_count);
}
}
return 0;
}
#define OUT_MIX_COUNT2(in_count, in_s) in_count = out_mix_count_2(in_count, in_s)
/*****************************************************************************/
/* mix */
static INLINE UINT16 out_mix_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s)
{
if (in_count > 0)
{
if (in_count < 32)
{
const BYTE temp = ((0x1 << 5) | in_count) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256 + 32)
{
const BYTE temp = (in_count - 32) & 0xFF;
Stream_Write_UINT8(in_s, 0x20);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf1);
Stream_Write_UINT16(in_s, in_count);
}
}
return 0;
}
#define OUT_MIX_COUNT3(in_count, in_s) in_count = out_mix_count_3(in_count, in_s)
/*****************************************************************************/
/* fom */
static INLINE UINT16 out_from_count_2(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
const char* WINPR_RESTRICT in_mask, size_t in_mask_len)
{
if (in_count > 0)
{
if ((in_count % 8) == 0 && in_count < 249)
{
const BYTE temp = ((0x2 << 5) | (in_count / 8)) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256)
{
const BYTE temp = (in_count - 1) & 0xFF;
Stream_Write_UINT8(in_s, 0x40);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf2);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write(in_s, in_mask, in_mask_len);
}
return 0;
}
#define OUT_FOM_COUNT2(in_count, in_s, in_mask, in_mask_len) \
in_count = out_from_count_2(in_count, in_s, in_mask, in_mask_len)
/*****************************************************************************/
/* fill or mix (fom) */
static INLINE UINT16 out_from_count_3(UINT16 in_count, wStream* WINPR_RESTRICT in_s,
const char* WINPR_RESTRICT in_mask, size_t in_mask_len)
{
if (in_count > 0)
{
if ((in_count % 8) == 0 && in_count < 249)
{
const BYTE temp = ((0x2 << 5) | (in_count / 8)) & 0xFF;
Stream_Write_UINT8(in_s, temp);
}
else if (in_count < 256)
{
const BYTE temp = (in_count - 1) & 0xFF;
Stream_Write_UINT8(in_s, 0x40);
Stream_Write_UINT8(in_s, temp);
}
else
{
Stream_Write_UINT8(in_s, 0xf2);
Stream_Write_UINT16(in_s, in_count);
}
Stream_Write(in_s, in_mask, in_mask_len);
}
return 0;
}
#define OUT_FOM_COUNT3(in_count, in_s, in_mask, in_mask_len) \
in_count = out_from_count_3(in_count, in_s, in_mask, in_mask_len)
#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 \
do \
{ \
bicolor_count = 0; \
fill_count = 0; \
color_count = 0; \
mix_count = 0; \
fom_count = 0; \
fom_mask_len = 0; \
bicolor_spin = FALSE; \
} while (0)
static INLINE SSIZE_T freerdp_bitmap_compress_24(const void* WINPR_RESTRICT srcData, UINT32 width,
UINT32 height, wStream* WINPR_RESTRICT s,
UINT32 byte_limit, UINT32 start_line,
wStream* WINPR_RESTRICT temp_s, UINT32 e)
{
char fom_mask[8192] = { 0 }; /* good for up to 64K bitmap */
SSIZE_T lines_sent = 0;
UINT16 count = 0;
UINT16 color_count = 0;
UINT32 last_pixel = 0;
UINT32 last_ypixel = 0;
UINT16 bicolor_count = 0;
UINT32 bicolor1 = 0;
UINT32 bicolor2 = 0;
BOOL bicolor_spin = FALSE;
UINT32 end = width + e;
UINT32 out_count = end * 3;
UINT16 fill_count = 0;
UINT16 mix_count = 0;
const UINT32 mix = 0xFFFFFF;
UINT16 fom_count = 0;
size_t fom_mask_len = 0;
const char* start = (const char*)srcData;
const char* line = start + 4ULL * width * start_line;
const char* last_line = NULL;
while ((line >= start) && (out_count < 32768))
{
size_t i = Stream_GetPosition(s) + 3ULL * count;
if ((i - (3ULL * color_count) >= byte_limit) &&
(i - (3ULL * bicolor_count) >= byte_limit) && (i - (3ULL * fill_count) >= byte_limit) &&
(i - (3ULL * mix_count) >= byte_limit) && (i - (3ULL * fom_count) >= byte_limit))
{
break;
}
out_count += end * 3;
for (UINT32 j = 0; j < end; j++)
{
/* read next pixel */
const UINT32 pixel = IN_PIXEL32(line, j, 0, width, last_pixel);
const UINT32 ypixel = IN_PIXEL32(last_line, j, 0, width, last_ypixel);
if (!TEST_FILL)
{
if (fill_count > 3 && fill_count >= color_count && fill_count >= bicolor_count &&
fill_count >= mix_count && fill_count >= fom_count)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (color_count > count)
return -1;
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)
bicolor_count--;
if (bicolor_count > count)
return -1;
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 = FALSE;
}
if (!(TEST_FOM))
{
if (fom_count > 3 && fom_count >= fill_count && fom_count >= color_count &&
fom_count >= mix_count && fom_count >= bicolor_count)
{
if (fom_count > count)
return -1;
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++;
}
Stream_Write_UINT8(temp_s, pixel & 0xff);
Stream_Write_UINT8(temp_s, (pixel >> 8) & 0xff);
Stream_Write_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)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (fom_count > count)
return -1;
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 - 4ULL * width;
start_line--;
lines_sent++;
}
Stream_SetPosition(temp_s, 0);
if (fill_count > 3 && fill_count >= color_count && fill_count >= bicolor_count &&
fill_count >= mix_count && fill_count >= fom_count)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (color_count > count)
return -1;
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)
bicolor_count--;
if (bicolor_count > count)
return -1;
count -= bicolor_count;
OUT_COPY_COUNT3(count, s, temp_s);
OUT_BICOLOR_COUNT3(bicolor_count, s, bicolor2, bicolor1);
if (bicolor_count > count)
return -1;
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)
{
if (fom_count > count)
return -1;
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;
}
static INLINE SSIZE_T freerdp_bitmap_compress_16(const void* WINPR_RESTRICT srcData, UINT32 width,
UINT32 height, wStream* WINPR_RESTRICT s,
UINT32 bpp, UINT32 byte_limit, UINT32 start_line,
wStream* WINPR_RESTRICT temp_s, UINT32 e)
{
char fom_mask[8192] = { 0 }; /* good for up to 64K bitmap */
SSIZE_T lines_sent = 0;
UINT16 count = 0;
UINT16 color_count = 0;
UINT16 last_pixel = 0;
UINT16 last_ypixel = 0;
UINT16 bicolor_count = 0;
UINT16 bicolor1 = 0;
UINT16 bicolor2 = 0;
BOOL bicolor_spin = FALSE;
UINT32 end = width + e;
UINT32 out_count = end * 2;
UINT16 fill_count = 0;
UINT16 mix_count = 0;
const UINT32 mix = (bpp == 15) ? 0xBA1F : 0xFFFF;
UINT16 fom_count = 0;
size_t fom_mask_len = 0;
const char* start = (const char*)srcData;
const char* line = start + 2ULL * width * start_line;
const char* last_line = NULL;
while ((line >= start) && (out_count < 32768))
{
size_t i = Stream_GetPosition(s) + 2ULL * count;
if ((i - (2ULL * color_count) >= byte_limit) &&
(i - (2ULL * bicolor_count) >= byte_limit) && (i - (2ULL * fill_count) >= byte_limit) &&
(i - (2ULL * mix_count) >= byte_limit) && (i - (2ULL * fom_count) >= byte_limit))
{
break;
}
out_count += end * 2;
for (UINT32 j = 0; j < end; j++)
{
/* read next pixel */
const UINT16 pixel = IN_PIXEL16(line, j, 0, width, last_pixel);
const UINT16 ypixel = IN_PIXEL16(last_line, j, 0, width, last_ypixel);
if (!TEST_FILL)
{
if (fill_count > 3 && fill_count >= color_count && fill_count >= bicolor_count &&
fill_count >= mix_count && fill_count >= fom_count)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (color_count > count)
return -1;
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)
bicolor_count--;
if (bicolor_count > count)
return -1;
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 = FALSE;
}
if (!(TEST_FOM))
{
if (fom_count > 3 && fom_count >= fill_count && fom_count >= color_count &&
fom_count >= mix_count && fom_count >= bicolor_count)
{
if (fom_count > count)
return -1;
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++;
}
Stream_Write_UINT16(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)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (fom_count > count)
return -1;
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 - 2ULL * width;
start_line--;
lines_sent++;
}
Stream_SetPosition(temp_s, 0);
if (fill_count > 3 && fill_count >= color_count && fill_count >= bicolor_count &&
fill_count >= mix_count && fill_count >= fom_count)
{
if (fill_count > count)
return -1;
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)
{
if (mix_count > count)
return -1;
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)
{
if (color_count > count)
return -1;
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)
bicolor_count--;
if (bicolor_count > count)
return -1;
count -= bicolor_count;
OUT_COPY_COUNT2(count, s, temp_s);
OUT_BICOLOR_COUNT2(bicolor_count, s, bicolor2, bicolor1);
if (bicolor_count > count)
return -1;
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)
{
if (fom_count > count)
return -1;
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);
}
return lines_sent;
}
SSIZE_T freerdp_bitmap_compress(const void* WINPR_RESTRICT srcData, UINT32 width, UINT32 height,
wStream* WINPR_RESTRICT s, UINT32 bpp, UINT32 byte_limit,
UINT32 start_line, wStream* WINPR_RESTRICT temp_s, UINT32 e)
{
Stream_SetPosition(temp_s, 0);
switch (bpp)
{
case 15:
case 16:
return freerdp_bitmap_compress_16(srcData, width, height, s, bpp, byte_limit,
start_line, temp_s, e);
case 24:
return freerdp_bitmap_compress_24(srcData, width, height, s, byte_limit, start_line,
temp_s, e);
default:
return -1;
}
}
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