1093 lines
27 KiB
C
1093 lines
27 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Bitmap Compression
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*
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* Copyright 2004-2012 Jay Sorg <jay.sorg@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include <freerdp/config.h>
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#endif
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#include <freerdp/codec/bitmap.h>
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#include <freerdp/codec/planar.h>
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static INLINE UINT16 GETPIXEL16(const void* d, UINT32 x, UINT32 y, UINT32 w)
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{
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const BYTE* src = (const BYTE*)d + ((y * w + x) * sizeof(UINT16));
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return (UINT16)(((UINT16)src[1] << 8) | (UINT16)src[0]);
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}
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static INLINE UINT32 GETPIXEL32(const void* d, UINT32 x, UINT32 y, UINT32 w)
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{
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const BYTE* src = (const BYTE*)d + ((y * w + x) * sizeof(UINT32));
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return (((UINT32)src[3]) << 24) | (((UINT32)src[2]) << 16) | (((UINT32)src[1]) << 8) |
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(src[0] & 0xFF);
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}
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/*****************************************************************************/
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static INLINE UINT16 IN_PIXEL16(const void* in_ptr, UINT32 in_x, UINT32 in_y, UINT32 in_w,
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UINT16 in_last_pixel)
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{
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if (in_ptr == 0)
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return 0;
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else if (in_x < in_w)
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return GETPIXEL16(in_ptr, in_x, in_y, in_w);
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else
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return in_last_pixel;
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}
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/*****************************************************************************/
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static INLINE UINT32 IN_PIXEL32(const void* in_ptr, UINT32 in_x, UINT32 in_y, UINT32 in_w,
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UINT32 in_last_pixel)
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{
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if (in_ptr == 0)
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return 0;
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else if (in_x < in_w)
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return GETPIXEL32(in_ptr, in_x, in_y, in_w);
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else
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return in_last_pixel;
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}
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/*****************************************************************************/
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/* color */
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static UINT16 out_color_count_2(UINT16 in_count, wStream* in_s, UINT16 in_data)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x3 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x60);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf3);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write_UINT16(in_s, in_data);
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}
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return 0;
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}
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#define OUT_COLOR_COUNT2(in_count, in_s, in_data) \
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in_count = out_color_count_2(in_count, in_s, in_data)
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/*****************************************************************************/
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/* color */
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static UINT16 out_color_count_3(UINT16 in_count, wStream* in_s, UINT32 in_data)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x3 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x60);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf3);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write_UINT8(in_s, in_data & 0xFF);
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Stream_Write_UINT8(in_s, (in_data >> 8) & 0xFF);
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Stream_Write_UINT8(in_s, (in_data >> 16) & 0xFF);
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}
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return 0;
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}
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#define OUT_COLOR_COUNT3(in_count, in_s, in_data) \
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in_count = out_color_count_3(in_count, in_s, in_data)
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/*****************************************************************************/
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/* copy */
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static INLINE UINT16 out_copy_count_2(UINT16 in_count, wStream* in_s, wStream* in_data)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x4 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x80);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf4);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write(in_s, Stream_Buffer(in_data), in_count * 2);
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}
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Stream_SetPosition(in_data, 0);
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return 0;
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}
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#define OUT_COPY_COUNT2(in_count, in_s, in_data) \
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in_count = out_copy_count_2(in_count, in_s, in_data)
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/*****************************************************************************/
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/* copy */
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static INLINE UINT16 out_copy_count_3(UINT16 in_count, wStream* in_s, wStream* in_data)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x4 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x80);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf4);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write(in_s, Stream_Pointer(in_data), in_count * 3);
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}
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Stream_SetPosition(in_data, 0);
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return 0;
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}
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#define OUT_COPY_COUNT3(in_count, in_s, in_data) \
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in_count = out_copy_count_3(in_count, in_s, in_data)
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/*****************************************************************************/
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/* bicolor */
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static INLINE UINT16 out_bicolor_count_2(UINT16 in_count, wStream* in_s, UINT16 in_color1,
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UINT16 in_color2)
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{
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if (in_count > 0)
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{
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if (in_count / 2 < 16)
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{
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const BYTE temp = ((0xe << 4) | (in_count / 2)) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count / 2 < 256 + 16)
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{
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const BYTE temp = (in_count / 2 - 16) & 0xFF;
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Stream_Write_UINT8(in_s, 0xe0);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf8);
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Stream_Write_UINT16(in_s, in_count / 2);
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}
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Stream_Write_UINT16(in_s, in_color1);
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Stream_Write_UINT16(in_s, in_color2);
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}
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return 0;
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}
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#define OUT_BICOLOR_COUNT2(in_count, in_s, in_color1, in_color2) \
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in_count = out_bicolor_count_2(in_count, in_s, in_color1, in_color2)
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/*****************************************************************************/
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/* bicolor */
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static INLINE UINT16 out_bicolor_count_3(UINT16 in_count, wStream* in_s, UINT32 in_color1,
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UINT32 in_color2)
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{
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if (in_count > 0)
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{
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if (in_count / 2 < 16)
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{
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const BYTE temp = ((0xe << 4) | (in_count / 2)) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count / 2 < 256 + 16)
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{
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const BYTE temp = (in_count / 2 - 16) & 0xFF;
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Stream_Write_UINT8(in_s, 0xe0);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf8);
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Stream_Write_UINT16(in_s, in_count / 2);
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}
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Stream_Write_UINT8(in_s, in_color1 & 0xFF);
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Stream_Write_UINT8(in_s, (in_color1 >> 8) & 0xFF);
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Stream_Write_UINT8(in_s, (in_color1 >> 16) & 0xFF);
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Stream_Write_UINT8(in_s, in_color2 & 0xFF);
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Stream_Write_UINT8(in_s, (in_color2 >> 8) & 0xFF);
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Stream_Write_UINT8(in_s, (in_color2 >> 16) & 0xFF);
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}
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return 0;
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}
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#define OUT_BICOLOR_COUNT3(in_count, in_s, in_color1, in_color2) \
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in_count = out_bicolor_count_3(in_count, in_s, in_color1, in_color2)
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/*****************************************************************************/
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/* fill */
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static INLINE UINT16 out_fill_count_2(UINT16 in_count, wStream* in_s)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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Stream_Write_UINT8(in_s, in_count & 0xFF);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x0);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf0);
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Stream_Write_UINT16(in_s, in_count);
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}
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}
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return 0;
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}
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#define OUT_FILL_COUNT2(in_count, in_s) in_count = out_fill_count_2(in_count, in_s)
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/*****************************************************************************/
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/* fill */
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static INLINE UINT16 out_fill_count_3(UINT16 in_count, wStream* in_s)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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Stream_Write_UINT8(in_s, in_count & 0xFF);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x0);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf0);
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Stream_Write_UINT16(in_s, in_count);
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}
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}
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return 0;
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}
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#define OUT_FILL_COUNT3(in_count, in_s) in_count = out_fill_count_3(in_count, in_s)
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/*****************************************************************************/
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/* mix */
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static INLINE UINT16 out_mix_count_2(UINT16 in_count, wStream* in_s)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x1 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x20);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf1);
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Stream_Write_UINT16(in_s, in_count);
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}
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}
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return 0;
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}
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#define OUT_MIX_COUNT2(in_count, in_s) in_count = out_mix_count_2(in_count, in_s)
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/*****************************************************************************/
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/* mix */
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static INLINE UINT16 out_mix_count_3(UINT16 in_count, wStream* in_s)
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{
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if (in_count > 0)
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{
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if (in_count < 32)
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{
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const BYTE temp = ((0x1 << 5) | in_count) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256 + 32)
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{
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const BYTE temp = (in_count - 32) & 0xFF;
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Stream_Write_UINT8(in_s, 0x20);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf1);
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Stream_Write_UINT16(in_s, in_count);
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}
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}
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return 0;
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}
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#define OUT_MIX_COUNT3(in_count, in_s) in_count = out_mix_count_3(in_count, in_s)
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/*****************************************************************************/
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/* fom */
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static INLINE UINT16 out_from_count_2(UINT16 in_count, wStream* in_s, const char* in_mask,
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size_t in_mask_len)
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{
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if (in_count > 0)
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{
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if ((in_count % 8) == 0 && in_count < 249)
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{
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const BYTE temp = ((0x2 << 5) | (in_count / 8)) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256)
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{
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const BYTE temp = (in_count - 1) & 0xFF;
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Stream_Write_UINT8(in_s, 0x40);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf2);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write(in_s, in_mask, in_mask_len);
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}
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return 0;
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}
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#define OUT_FOM_COUNT2(in_count, in_s, in_mask, in_mask_len) \
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in_count = out_from_count_2(in_count, in_s, in_mask, in_mask_len)
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/*****************************************************************************/
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/* fill or mix (fom) */
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static INLINE UINT16 out_from_count_3(UINT16 in_count, wStream* in_s, const char* in_mask,
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size_t in_mask_len)
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{
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if (in_count > 0)
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{
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if ((in_count % 8) == 0 && in_count < 249)
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{
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const BYTE temp = ((0x2 << 5) | (in_count / 8)) & 0xFF;
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Stream_Write_UINT8(in_s, temp);
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}
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else if (in_count < 256)
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{
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const BYTE temp = (in_count - 1) & 0xFF;
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Stream_Write_UINT8(in_s, 0x40);
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Stream_Write_UINT8(in_s, temp);
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}
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else
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{
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Stream_Write_UINT8(in_s, 0xf2);
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Stream_Write_UINT16(in_s, in_count);
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}
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Stream_Write(in_s, in_mask, in_mask_len);
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}
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return 0;
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}
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#define OUT_FOM_COUNT3(in_count, in_s, in_mask, in_mask_len) \
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in_count = out_from_count_3(in_count, in_s, in_mask, in_mask_len)
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#define TEST_FILL ((last_line == 0 && pixel == 0) || (last_line != 0 && pixel == ypixel))
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#define TEST_MIX ((last_line == 0 && pixel == mix) || (last_line != 0 && pixel == (ypixel ^ mix)))
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#define TEST_FOM TEST_FILL || TEST_MIX
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#define TEST_COLOR pixel == last_pixel
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#define TEST_BICOLOR \
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((pixel != last_pixel) && \
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((!bicolor_spin && (pixel == bicolor1) && (last_pixel == bicolor2)) || \
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(bicolor_spin && (pixel == bicolor2) && (last_pixel == bicolor1))))
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#define RESET_COUNTS \
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do \
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{ \
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bicolor_count = 0; \
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fill_count = 0; \
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color_count = 0; \
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mix_count = 0; \
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fom_count = 0; \
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fom_mask_len = 0; \
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bicolor_spin = FALSE; \
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} while (0)
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static SSIZE_T freerdp_bitmap_compress_24(const void* srcData, UINT32 width, UINT32 height,
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wStream* s, UINT32 byte_limit, UINT32 start_line,
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wStream* temp_s, UINT32 e)
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{
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char fom_mask[8192]; /* good for up to 64K bitmap */
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SSIZE_T lines_sent = 0;
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UINT16 count = 0;
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UINT16 color_count = 0;
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UINT32 last_pixel = 0;
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UINT32 last_ypixel = 0;
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UINT16 bicolor_count = 0;
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UINT32 bicolor1 = 0;
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UINT32 bicolor2 = 0;
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BOOL bicolor_spin = FALSE;
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UINT32 end = width + e;
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UINT32 out_count = end * 3;
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UINT16 fill_count = 0;
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UINT16 mix_count = 0;
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const UINT32 mix = 0xFFFFFF;
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UINT16 fom_count = 0;
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size_t fom_mask_len = 0;
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const char* start = (const char*)srcData;
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const char* line = start + width * start_line * 4;
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const char* last_line = NULL;
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while ((line >= start) && (out_count < 32768))
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{
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UINT32 j;
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size_t i = Stream_GetPosition(s) + count * 3U;
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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 (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 - width * 4;
|
|
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 SSIZE_T freerdp_bitmap_compress_16(const void* srcData, UINT32 width, UINT32 height,
|
|
wStream* s, UINT32 bpp, UINT32 byte_limit,
|
|
UINT32 start_line, wStream* temp_s, UINT32 e)
|
|
{
|
|
char fom_mask[8192]; /* 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 + width * start_line * 2;
|
|
const char* last_line = NULL;
|
|
|
|
while ((line >= start) && (out_count < 32768))
|
|
{
|
|
UINT32 j;
|
|
size_t i = Stream_GetPosition(s) + 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 (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 - width * 2;
|
|
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* srcData, UINT32 width, UINT32 height, wStream* s,
|
|
UINT32 bpp, UINT32 byte_limit, UINT32 start_line, wStream* 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;
|
|
}
|
|
}
|