751 lines
19 KiB
C
751 lines
19 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Interleaved RLE Bitmap Codec
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2015 Thincast Technologies GmbH
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* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
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* Copyright 2016 Armin Novak <armin.novak@thincast.com>
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* Copyright 2016 Thincast Technologies GmbH
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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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#include <winpr/assert.h>
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#include <freerdp/config.h>
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#include <freerdp/codec/interleaved.h>
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#include <freerdp/log.h>
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#define TAG FREERDP_TAG("codec")
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#define UNROLL_BODY(_exp, _count) \
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do \
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{ \
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for (size_t x = 0; x < (_count); x++) \
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{ \
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do \
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{ \
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_exp \
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} while (FALSE); \
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} \
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} while (FALSE)
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#define UNROLL_MULTIPLE(_condition, _exp, _count) \
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do \
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{ \
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while ((_condition) >= _count) \
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{ \
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UNROLL_BODY(_exp, _count); \
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(_condition) -= _count; \
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} \
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} while (FALSE)
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#define UNROLL(_condition, _exp) \
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do \
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{ \
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UNROLL_MULTIPLE(_condition, _exp, 16); \
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UNROLL_MULTIPLE(_condition, _exp, 4); \
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UNROLL_MULTIPLE(_condition, _exp, 1); \
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} while (FALSE)
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/*
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RLE Compressed Bitmap Stream (RLE_BITMAP_STREAM)
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http://msdn.microsoft.com/en-us/library/cc240895%28v=prot.10%29.aspx
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pseudo-code
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http://msdn.microsoft.com/en-us/library/dd240593%28v=prot.10%29.aspx
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*/
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#define REGULAR_BG_RUN 0x00
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#define MEGA_MEGA_BG_RUN 0xF0
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#define REGULAR_FG_RUN 0x01
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#define MEGA_MEGA_FG_RUN 0xF1
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#define LITE_SET_FG_FG_RUN 0x0C
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#define MEGA_MEGA_SET_FG_RUN 0xF6
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#define LITE_DITHERED_RUN 0x0E
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#define MEGA_MEGA_DITHERED_RUN 0xF8
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#define REGULAR_COLOR_RUN 0x03
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#define MEGA_MEGA_COLOR_RUN 0xF3
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#define REGULAR_FGBG_IMAGE 0x02
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#define MEGA_MEGA_FGBG_IMAGE 0xF2
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#define LITE_SET_FG_FGBG_IMAGE 0x0D
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#define MEGA_MEGA_SET_FGBG_IMAGE 0xF7
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#define REGULAR_COLOR_IMAGE 0x04
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#define MEGA_MEGA_COLOR_IMAGE 0xF4
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#define SPECIAL_FGBG_1 0xF9
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#define SPECIAL_FGBG_2 0xFA
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#define SPECIAL_WHITE 0xFD
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#define SPECIAL_BLACK 0xFE
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#define BLACK_PIXEL 0x000000
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typedef UINT32 PIXEL;
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static const BYTE g_MaskSpecialFgBg1 = 0x03;
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static const BYTE g_MaskSpecialFgBg2 = 0x05;
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static const BYTE g_MaskRegularRunLength = 0x1F;
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static const BYTE g_MaskLiteRunLength = 0x0F;
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static const char* rle_code_str(UINT32 code)
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{
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switch (code)
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{
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case REGULAR_BG_RUN:
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return "REGULAR_BG_RUN";
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case MEGA_MEGA_BG_RUN:
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return "MEGA_MEGA_BG_RUN";
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case REGULAR_FG_RUN:
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return "REGULAR_FG_RUN";
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case MEGA_MEGA_FG_RUN:
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return "MEGA_MEGA_FG_RUN";
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case LITE_SET_FG_FG_RUN:
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return "LITE_SET_FG_FG_RUN";
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case MEGA_MEGA_SET_FG_RUN:
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return "MEGA_MEGA_SET_FG_RUN";
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case LITE_DITHERED_RUN:
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return "LITE_DITHERED_RUN";
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case MEGA_MEGA_DITHERED_RUN:
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return "MEGA_MEGA_DITHERED_RUN";
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case REGULAR_COLOR_RUN:
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return "REGULAR_COLOR_RUN";
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case MEGA_MEGA_COLOR_RUN:
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return "MEGA_MEGA_COLOR_RUN";
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case REGULAR_FGBG_IMAGE:
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return "REGULAR_FGBG_IMAGE";
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case MEGA_MEGA_FGBG_IMAGE:
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return "MEGA_MEGA_FGBG_IMAGE";
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case LITE_SET_FG_FGBG_IMAGE:
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return "LITE_SET_FG_FGBG_IMAGE";
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case MEGA_MEGA_SET_FGBG_IMAGE:
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return "MEGA_MEGA_SET_FGBG_IMAGE";
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case REGULAR_COLOR_IMAGE:
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return "REGULAR_COLOR_IMAGE";
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case MEGA_MEGA_COLOR_IMAGE:
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return "MEGA_MEGA_COLOR_IMAGE";
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case SPECIAL_FGBG_1:
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return "SPECIAL_FGBG_1";
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case SPECIAL_FGBG_2:
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return "SPECIAL_FGBG_2";
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case SPECIAL_WHITE:
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return "SPECIAL_WHITE";
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case SPECIAL_BLACK:
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return "SPECIAL_BLACK";
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default:
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return "UNKNOWN";
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}
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}
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static const char* rle_code_str_buffer(UINT32 code, char* buffer, size_t size)
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{
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const char* str = rle_code_str(code);
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_snprintf(buffer, size, "%s [0x%08" PRIx32 "]", str, code);
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return buffer;
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}
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#define buffer_within_range(pbSrc, size, pbEnd) \
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buffer_within_range_((pbSrc), (size), (pbEnd), __func__, __FILE__, __LINE__)
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static INLINE BOOL buffer_within_range_(const void* pbSrc, size_t size, const void* pbEnd,
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const char* fkt, const char* file, size_t line)
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{
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WINPR_UNUSED(file);
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WINPR_ASSERT(pbSrc);
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WINPR_ASSERT(pbEnd);
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if ((const char*)pbSrc + size > (const char*)pbEnd)
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{
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WLog_ERR(TAG, "[%s:%" PRIuz "] pbSrc=%p + %" PRIuz " > pbEnd=%p", fkt, line, pbSrc, size,
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pbEnd);
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return FALSE;
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}
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return TRUE;
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}
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/**
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* Reads the supplied order header and extracts the compression
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* order code ID.
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*/
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static INLINE UINT32 ExtractCodeId(BYTE bOrderHdr)
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{
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if ((bOrderHdr & 0xC0U) != 0xC0U)
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{
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/* REGULAR orders
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* (000x xxxx, 001x xxxx, 010x xxxx, 011x xxxx, 100x xxxx)
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*/
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return bOrderHdr >> 5;
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}
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else if ((bOrderHdr & 0xF0U) == 0xF0U)
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{
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/* MEGA and SPECIAL orders (0xF*) */
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return bOrderHdr;
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}
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else
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{
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/* LITE orders
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* 1100 xxxx, 1101 xxxx, 1110 xxxx)
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*/
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return bOrderHdr >> 4;
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}
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}
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/**
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* Extract the run length of a compression order.
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*/
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static UINT ExtractRunLengthRegularFgBg(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
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{
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UINT runLength = 0;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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runLength = (*pbOrderHdr) & g_MaskRegularRunLength;
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if (runLength == 0)
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{
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if (!buffer_within_range(pbOrderHdr, 1, pbEnd))
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{
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*advance = 0;
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return 0;
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}
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runLength = *(pbOrderHdr + 1) + 1;
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(*advance)++;
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}
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else
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runLength = runLength * 8;
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return runLength;
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}
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static UINT ExtractRunLengthLiteFgBg(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
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{
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UINT runLength = 0;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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runLength = *pbOrderHdr & g_MaskLiteRunLength;
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if (runLength == 0)
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{
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if (!buffer_within_range(pbOrderHdr, 1, pbEnd))
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{
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*advance = 0;
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return 0;
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}
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runLength = *(pbOrderHdr + 1) + 1;
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(*advance)++;
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}
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else
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runLength = runLength * 8;
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return runLength;
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}
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static UINT ExtractRunLengthRegular(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
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{
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UINT runLength = 0;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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runLength = *pbOrderHdr & g_MaskRegularRunLength;
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if (runLength == 0)
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{
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if (!buffer_within_range(pbOrderHdr, 1, pbEnd))
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{
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*advance = 0;
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return 0;
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}
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runLength = *(pbOrderHdr + 1) + 32;
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(*advance)++;
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}
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return runLength;
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}
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static UINT ExtractRunLengthMegaMega(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
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{
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UINT runLength = 0;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
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{
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*advance = 0;
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return 0;
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}
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runLength = ((UINT16)pbOrderHdr[1]) | (((UINT16)pbOrderHdr[2]) << 8);
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(*advance) += 2;
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return runLength;
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}
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static UINT ExtractRunLengthLite(const BYTE* pbOrderHdr, const BYTE* pbEnd, UINT32* advance)
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{
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UINT runLength = 0;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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runLength = *pbOrderHdr & g_MaskLiteRunLength;
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if (runLength == 0)
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{
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if (!buffer_within_range(pbOrderHdr, 1, pbEnd))
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{
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*advance = 0;
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return 0;
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}
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runLength = *(pbOrderHdr + 1) + 16;
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(*advance)++;
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}
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return runLength;
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}
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static INLINE UINT32 ExtractRunLength(UINT32 code, const BYTE* pbOrderHdr, const BYTE* pbEnd,
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UINT32* advance)
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{
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UINT32 runLength = 0;
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UINT32 ladvance = 1;
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WINPR_ASSERT(pbOrderHdr);
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WINPR_ASSERT(pbEnd);
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WINPR_ASSERT(advance);
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*advance = 0;
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if (!buffer_within_range(pbOrderHdr, 0, pbEnd))
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return 0;
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switch (code)
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{
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case REGULAR_FGBG_IMAGE:
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runLength = ExtractRunLengthRegularFgBg(pbOrderHdr, pbEnd, &ladvance);
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break;
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case LITE_SET_FG_FGBG_IMAGE:
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runLength = ExtractRunLengthLiteFgBg(pbOrderHdr, pbEnd, &ladvance);
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break;
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case REGULAR_BG_RUN:
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case REGULAR_FG_RUN:
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case REGULAR_COLOR_RUN:
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case REGULAR_COLOR_IMAGE:
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runLength = ExtractRunLengthRegular(pbOrderHdr, pbEnd, &ladvance);
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break;
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case LITE_SET_FG_FG_RUN:
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case LITE_DITHERED_RUN:
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runLength = ExtractRunLengthLite(pbOrderHdr, pbEnd, &ladvance);
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break;
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case MEGA_MEGA_BG_RUN:
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case MEGA_MEGA_FG_RUN:
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case MEGA_MEGA_SET_FG_RUN:
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case MEGA_MEGA_DITHERED_RUN:
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case MEGA_MEGA_COLOR_RUN:
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case MEGA_MEGA_FGBG_IMAGE:
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case MEGA_MEGA_SET_FGBG_IMAGE:
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case MEGA_MEGA_COLOR_IMAGE:
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runLength = ExtractRunLengthMegaMega(pbOrderHdr, pbEnd, &ladvance);
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break;
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default:
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runLength = 0;
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ladvance = 0;
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break;
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}
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*advance = ladvance;
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return runLength;
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}
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#define ensure_capacity(start, end, size, base) \
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ensure_capacity_((start), (end), (size), (base), __func__, __FILE__, __LINE__)
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static INLINE BOOL ensure_capacity_(const BYTE* start, const BYTE* end, size_t size, size_t base,
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const char* fkt, const char* file, size_t line)
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{
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const size_t available = (uintptr_t)end - (uintptr_t)start;
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const BOOL rc = available >= size * base;
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const BOOL res = rc && (start <= end);
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if (!res)
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WLog_ERR(TAG,
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"[%s:%" PRIuz "] failed: start=%p <= end=%p, available=%" PRIuz " >= size=%" PRIuz
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" * base=%" PRIuz,
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fkt, line, start, end, available, size, base);
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return res;
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}
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static INLINE void write_pixel_8(BYTE* _buf, BYTE _pix)
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{
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WINPR_ASSERT(_buf);
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*_buf = _pix;
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}
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static INLINE void write_pixel_24(BYTE* _buf, UINT32 _pix)
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{
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WINPR_ASSERT(_buf);
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(_buf)[0] = (BYTE)(_pix);
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(_buf)[1] = (BYTE)((_pix) >> 8);
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(_buf)[2] = (BYTE)((_pix) >> 16);
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}
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static INLINE void write_pixel_16(BYTE* _buf, UINT16 _pix)
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{
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WINPR_ASSERT(_buf);
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_buf[0] = _pix & 0xFF;
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_buf[1] = (_pix >> 8) & 0xFF;
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}
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#undef DESTWRITEPIXEL
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#undef DESTREADPIXEL
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#undef SRCREADPIXEL
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#undef WRITEFGBGIMAGE
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#undef WRITEFIRSTLINEFGBGIMAGE
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#undef RLEDECOMPRESS
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#undef RLEEXTRA
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#undef WHITE_PIXEL
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#undef PIXEL_SIZE
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#undef PIXEL
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#define PIXEL_SIZE 1
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#define PIXEL BYTE
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#define WHITE_PIXEL 0xFF
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#define DESTWRITEPIXEL(_buf, _pix) \
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do \
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{ \
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write_pixel_8(_buf, _pix); \
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_buf += 1; \
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} while (0)
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#define DESTREADPIXEL(_pix, _buf) _pix = (_buf)[0]
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#define SRCREADPIXEL(_pix, _buf) \
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do \
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{ \
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_pix = (_buf)[0]; \
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_buf += 1; \
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} while (0)
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#define WRITEFGBGIMAGE WriteFgBgImage8to8
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#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage8to8
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#define RLEDECOMPRESS RleDecompress8to8
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#define RLEEXTRA
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#undef ENSURE_CAPACITY
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#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 1)
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#include "include/bitmap.c"
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#undef DESTWRITEPIXEL
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#undef DESTREADPIXEL
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#undef SRCREADPIXEL
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#undef WRITEFGBGIMAGE
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#undef WRITEFIRSTLINEFGBGIMAGE
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#undef RLEDECOMPRESS
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#undef RLEEXTRA
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#undef WHITE_PIXEL
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#undef PIXEL_SIZE
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#undef PIXEL
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#define PIXEL_SIZE 2
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#define PIXEL UINT16
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#define WHITE_PIXEL 0xFFFF
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#define DESTWRITEPIXEL(_buf, _pix) \
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do \
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{ \
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write_pixel_16(_buf, _pix); \
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_buf += 2; \
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} while (0)
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#define DESTREADPIXEL(_pix, _buf) _pix = ((UINT16*)(_buf))[0]
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#define SRCREADPIXEL(_pix, _buf) \
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do \
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{ \
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_pix = (_buf)[0] | ((_buf)[1] << 8); \
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_buf += 2; \
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} while (0)
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#define WRITEFGBGIMAGE WriteFgBgImage16to16
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#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage16to16
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#define RLEDECOMPRESS RleDecompress16to16
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#define RLEEXTRA
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#undef ENSURE_CAPACITY
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#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 2)
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#include "include/bitmap.c"
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#undef DESTWRITEPIXEL
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#undef DESTREADPIXEL
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#undef SRCREADPIXEL
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#undef WRITEFGBGIMAGE
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#undef WRITEFIRSTLINEFGBGIMAGE
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#undef RLEDECOMPRESS
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#undef RLEEXTRA
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#undef WHITE_PIXEL
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#undef PIXEL_SIZE
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#undef PIXEL
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#define PIXEL_SIZE 3
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#define PIXEL UINT32
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#define WHITE_PIXEL 0xffffff
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#define DESTWRITEPIXEL(_buf, _pix) \
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do \
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{ \
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write_pixel_24(_buf, _pix); \
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_buf += 3; \
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} while (0)
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#define DESTREADPIXEL(_pix, _buf) _pix = (_buf)[0] | ((_buf)[1] << 8) | ((_buf)[2] << 16)
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#define SRCREADPIXEL(_pix, _buf) \
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do \
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{ \
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_pix = (_buf)[0] | ((_buf)[1] << 8) | ((_buf)[2] << 16); \
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_buf += 3; \
|
|
} while (0)
|
|
|
|
#define WRITEFGBGIMAGE WriteFgBgImage24to24
|
|
#define WRITEFIRSTLINEFGBGIMAGE WriteFirstLineFgBgImage24to24
|
|
#define RLEDECOMPRESS RleDecompress24to24
|
|
#define RLEEXTRA
|
|
#undef ENSURE_CAPACITY
|
|
#define ENSURE_CAPACITY(_start, _end, _size) ensure_capacity(_start, _end, _size, 3)
|
|
#include "include/bitmap.c"
|
|
|
|
struct S_BITMAP_INTERLEAVED_CONTEXT
|
|
{
|
|
BOOL Compressor;
|
|
|
|
UINT32 TempSize;
|
|
BYTE* TempBuffer;
|
|
|
|
wStream* bts;
|
|
};
|
|
|
|
BOOL interleaved_decompress(BITMAP_INTERLEAVED_CONTEXT* interleaved, const BYTE* pSrcData,
|
|
UINT32 SrcSize, UINT32 nSrcWidth, UINT32 nSrcHeight, UINT32 bpp,
|
|
BYTE* pDstData, UINT32 DstFormat, UINT32 nDstStep, UINT32 nXDst,
|
|
UINT32 nYDst, UINT32 nDstWidth, UINT32 nDstHeight,
|
|
const gdiPalette* palette)
|
|
{
|
|
UINT32 scanline = 0;
|
|
UINT32 SrcFormat = 0;
|
|
UINT32 BufferSize = 0;
|
|
|
|
if (!interleaved || !pSrcData || !pDstData)
|
|
{
|
|
WLog_ERR(TAG, "invalid arguments: interleaved=%p, pSrcData=%p, pDstData=%p", interleaved,
|
|
pSrcData, pDstData);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (bpp)
|
|
{
|
|
case 24:
|
|
scanline = nSrcWidth * 3;
|
|
SrcFormat = PIXEL_FORMAT_BGR24;
|
|
break;
|
|
|
|
case 16:
|
|
scanline = nSrcWidth * 2;
|
|
SrcFormat = PIXEL_FORMAT_RGB16;
|
|
break;
|
|
|
|
case 15:
|
|
scanline = nSrcWidth * 2;
|
|
SrcFormat = PIXEL_FORMAT_RGB15;
|
|
break;
|
|
|
|
case 8:
|
|
scanline = nSrcWidth;
|
|
SrcFormat = PIXEL_FORMAT_RGB8;
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "Invalid color depth %" PRIu32 "", bpp);
|
|
return FALSE;
|
|
}
|
|
|
|
BufferSize = scanline * nSrcHeight;
|
|
|
|
if (BufferSize > interleaved->TempSize)
|
|
{
|
|
interleaved->TempBuffer =
|
|
winpr_aligned_recalloc(interleaved->TempBuffer, BufferSize, sizeof(BYTE), 16);
|
|
interleaved->TempSize = BufferSize;
|
|
}
|
|
|
|
if (!interleaved->TempBuffer)
|
|
{
|
|
WLog_ERR(TAG, "interleaved->TempBuffer=%p", interleaved->TempBuffer);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (bpp)
|
|
{
|
|
case 24:
|
|
if (!RleDecompress24to24(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
|
|
nSrcWidth, nSrcHeight))
|
|
{
|
|
WLog_ERR(TAG, "RleDecompress24to24 failed");
|
|
return FALSE;
|
|
}
|
|
|
|
break;
|
|
|
|
case 16:
|
|
case 15:
|
|
if (!RleDecompress16to16(pSrcData, SrcSize, interleaved->TempBuffer, scanline,
|
|
nSrcWidth, nSrcHeight))
|
|
{
|
|
WLog_ERR(TAG, "RleDecompress16to16 failed");
|
|
return FALSE;
|
|
}
|
|
|
|
break;
|
|
|
|
case 8:
|
|
if (!RleDecompress8to8(pSrcData, SrcSize, interleaved->TempBuffer, scanline, nSrcWidth,
|
|
nSrcHeight))
|
|
{
|
|
WLog_ERR(TAG, "RleDecompress8to8 failed");
|
|
return FALSE;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "Invalid color depth %" PRIu32 "", bpp);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!freerdp_image_copy(pDstData, DstFormat, nDstStep, nXDst, nYDst, nDstWidth, nDstHeight,
|
|
interleaved->TempBuffer, SrcFormat, scanline, 0, 0, palette,
|
|
FREERDP_FLIP_VERTICAL | FREERDP_KEEP_DST_ALPHA))
|
|
{
|
|
WLog_ERR(TAG, "freerdp_image_copy failed");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL interleaved_compress(BITMAP_INTERLEAVED_CONTEXT* interleaved, BYTE* pDstData, UINT32* pDstSize,
|
|
UINT32 nWidth, UINT32 nHeight, const BYTE* pSrcData, UINT32 SrcFormat,
|
|
UINT32 nSrcStep, UINT32 nXSrc, UINT32 nYSrc, const gdiPalette* palette,
|
|
UINT32 bpp)
|
|
{
|
|
BOOL status = 0;
|
|
wStream* s = NULL;
|
|
UINT32 DstFormat = 0;
|
|
const UINT32 maxSize = 64 * 64 * 4;
|
|
|
|
if (!interleaved || !pDstData || !pSrcData)
|
|
return FALSE;
|
|
|
|
if ((nWidth == 0) || (nHeight == 0))
|
|
return FALSE;
|
|
|
|
if (nWidth % 4)
|
|
{
|
|
WLog_ERR(TAG, "interleaved_compress: width is not a multiple of 4");
|
|
return FALSE;
|
|
}
|
|
|
|
if ((nWidth > 64) || (nHeight > 64))
|
|
{
|
|
WLog_ERR(TAG,
|
|
"interleaved_compress: width (%" PRIu32 ") or height (%" PRIu32
|
|
") is greater than 64",
|
|
nWidth, nHeight);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (bpp)
|
|
{
|
|
case 24:
|
|
DstFormat = PIXEL_FORMAT_BGRX32;
|
|
break;
|
|
|
|
case 16:
|
|
DstFormat = PIXEL_FORMAT_RGB16;
|
|
break;
|
|
|
|
case 15:
|
|
DstFormat = PIXEL_FORMAT_RGB15;
|
|
break;
|
|
|
|
default:
|
|
return FALSE;
|
|
}
|
|
|
|
if (!freerdp_image_copy(interleaved->TempBuffer, DstFormat, 0, 0, 0, nWidth, nHeight, pSrcData,
|
|
SrcFormat, nSrcStep, nXSrc, nYSrc, palette, FREERDP_KEEP_DST_ALPHA))
|
|
return FALSE;
|
|
|
|
s = Stream_New(pDstData, *pDstSize);
|
|
|
|
if (!s)
|
|
return FALSE;
|
|
|
|
Stream_SetPosition(interleaved->bts, 0);
|
|
|
|
if (freerdp_bitmap_compress(interleaved->TempBuffer, nWidth, nHeight, s, bpp, maxSize,
|
|
nHeight - 1, interleaved->bts, 0) < 0)
|
|
status = FALSE;
|
|
else
|
|
status = TRUE;
|
|
|
|
Stream_SealLength(s);
|
|
*pDstSize = (UINT32)Stream_Length(s);
|
|
Stream_Free(s, FALSE);
|
|
return status;
|
|
}
|
|
|
|
BOOL bitmap_interleaved_context_reset(BITMAP_INTERLEAVED_CONTEXT* interleaved)
|
|
{
|
|
if (!interleaved)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BITMAP_INTERLEAVED_CONTEXT* bitmap_interleaved_context_new(BOOL Compressor)
|
|
{
|
|
BITMAP_INTERLEAVED_CONTEXT* interleaved = NULL;
|
|
interleaved = (BITMAP_INTERLEAVED_CONTEXT*)winpr_aligned_recalloc(
|
|
NULL, 1, sizeof(BITMAP_INTERLEAVED_CONTEXT), 32);
|
|
|
|
if (interleaved)
|
|
{
|
|
interleaved->TempSize = 64 * 64 * 4;
|
|
interleaved->TempBuffer = winpr_aligned_calloc(interleaved->TempSize, sizeof(BYTE), 16);
|
|
|
|
if (!interleaved->TempBuffer)
|
|
goto fail;
|
|
|
|
interleaved->bts = Stream_New(NULL, interleaved->TempSize);
|
|
|
|
if (!interleaved->bts)
|
|
goto fail;
|
|
}
|
|
|
|
return interleaved;
|
|
|
|
fail:
|
|
bitmap_interleaved_context_free(interleaved);
|
|
return NULL;
|
|
}
|
|
|
|
void bitmap_interleaved_context_free(BITMAP_INTERLEAVED_CONTEXT* interleaved)
|
|
{
|
|
if (!interleaved)
|
|
return;
|
|
|
|
winpr_aligned_free(interleaved->TempBuffer);
|
|
Stream_Free(interleaved->bts, TRUE);
|
|
winpr_aligned_free(interleaved);
|
|
}
|