1// Copyright 2014 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#include "../../../include/fxge/fx_dib.h"
8#include "../../../include/fxge/fx_ge.h"
9#include "../../../include/fxcodec/fx_codec.h"
10const FX_DWORD g_dwWinPalette[256] = {
11    0xff000000, 0xff800000, 0xff008000, 0xff808000, 0xff000080, 0xff800080,
12    0xff008080, 0xff808080, 0xffC0DCC0, 0xffA6CAF0, 0xff2A3FAA, 0xff2A3FFF,
13    0xff2A5F00, 0xff2A5F55, 0xff2A5FAA, 0xff2A5FFF, 0xff2A7F00, 0xff2A7F55,
14    0xff2A7FAA, 0xff2A7FFF, 0xff2A9F00, 0xff2A9F55, 0xff2A9FAA, 0xff2A9FFF,
15    0xff2ABF00, 0xff2ABF55, 0xff2ABFAA, 0xff2ABFFF, 0xff2ADF00, 0xff2ADF55,
16    0xff2ADFAA, 0xff2ADFFF, 0xff2AFF00, 0xff2AFF55, 0xff2AFFAA, 0xff2AFFFF,
17    0xff550000, 0xff550055, 0xff5500AA, 0xff5500FF, 0xff551F00, 0xff551F55,
18    0xff551FAA, 0xff551FFF, 0xff553F00, 0xff553F55, 0xff553FAA, 0xff553FFF,
19    0xff555F00, 0xff555F55, 0xff555FAA, 0xff555FFF, 0xff557F00, 0xff557F55,
20    0xff557FAA, 0xff557FFF, 0xff559F00, 0xff559F55, 0xff559FAA, 0xff559FFF,
21    0xff55BF00, 0xff55BF55, 0xff55BFAA, 0xff55BFFF, 0xff55DF00, 0xff55DF55,
22    0xff55DFAA, 0xff55DFFF, 0xff55FF00, 0xff55FF55, 0xff55FFAA, 0xff55FFFF,
23    0xff7F0000, 0xff7F0055, 0xff7F00AA, 0xff7F00FF, 0xff7F1F00, 0xff7F1F55,
24    0xff7F1FAA, 0xff7F1FFF, 0xff7F3F00, 0xff7F3F55, 0xff7F3FAA, 0xff7F3FFF,
25    0xff7F5F00, 0xff7F5F55, 0xff7F5FAA, 0xff7F5FFF, 0xff7F7F00, 0xff7F7F55,
26    0xff7F7FAA, 0xff7F7FFF, 0xff7F9F00, 0xff7F9F55, 0xff7F9FAA, 0xff7F9FFF,
27    0xff7FBF00, 0xff7FBF55, 0xff7FBFAA, 0xff7FBFFF, 0xff7FDF00, 0xff7FDF55,
28    0xff7FDFAA, 0xff7FDFFF, 0xff00FF7F, 0xff7FFF55, 0xff7FFFAA, 0xff7FFFFF,
29    0xffAA0000, 0xffAA0055, 0xffAA00AA, 0xffAA00FF, 0xffAA1F00, 0xffAA1F55,
30    0xffAA1FAA, 0xffAA1FFF, 0xffAA3F00, 0xffAA3F55, 0xffAA3FAA, 0xffAA3FFF,
31    0xffAA5F00, 0xffAA5F55, 0xffAA5FAA, 0xffAA5FFF, 0xffAA7F00, 0xffAA7F55,
32    0xffAA7FAA, 0xffAA7FFF, 0xffAA9F00, 0xffAA9F55, 0xffAA9FAA, 0xffAA9FFF,
33    0xffAABF00, 0xffAABF55, 0xffAABFAA, 0xffAABFFF, 0xffAADF00, 0xffAADF55,
34    0xffAADFAA, 0xffAADFFF, 0xffAAFF00, 0xffAAFF55, 0xffAAFFAA, 0xffAAFFFF,
35    0xffD40000, 0xffD40055, 0xffD400AA, 0xffD400FF, 0xffD41F00, 0xffD41F55,
36    0xffD41FAA, 0xffD41FFF, 0xffD43F00, 0xffD43F55, 0xffD43FAA, 0xffD43FFF,
37    0xffD45F00, 0xffD45F55, 0xffD45FAA, 0xffD45FFF, 0xffD47F00, 0xffD47F55,
38    0xffD47FAA, 0xffD4F7FF, 0xffD49F00, 0xffD49F55, 0xffD49FAA, 0xffD49FFF,
39    0xffD4BF00, 0xffD4BF55, 0xffD4BFAA, 0xffD4BFFF, 0xffD4DF00, 0xffD4DF55,
40    0xffD4DFAA, 0xffD4DFFF, 0xffD4FF00, 0xffD4FF55, 0xffD4FFAA, 0xffD4FFFF,
41    0xffFF0055, 0xffFF00AA, 0xffFF1F00, 0xffFF1F55, 0xffFF1FAA, 0xffFF1FFF,
42    0xffFF3F00, 0xffFF3F55, 0xffFF3FAA, 0xffFF3FFF, 0xffFF5F00, 0xffFF5F55,
43    0xffFF5FAA, 0xffFF5FFF, 0xffFF7F00, 0xffFF7F55, 0xffFF7FAA, 0xffFF7FFF,
44    0xffFF9F00, 0xffFF9F55, 0xffFF9FAA, 0xffFF9FFF, 0xffFFBF00, 0xffFFBF55,
45    0xffFFBFAA, 0xffFFBFFF, 0xffFFDF00, 0xffFFDF55, 0xffFFDFAA, 0xffFFDFFF,
46    0xffFFFF55, 0xffFFFFAA, 0xffCCCCFF, 0xffFFCCFF, 0xff33FFFF, 0xff66FFFF,
47    0xff99FFFF, 0xffCCFFFF, 0xff007F00, 0xff007F55, 0xff007FAA, 0xff007FFF,
48    0xff009F00, 0xff009F55, 0xff009FAA, 0xff009FFF, 0xff00BF00, 0xff00BF55,
49    0xff00BFAA, 0xff00BFFF, 0xff00DF00, 0xff00DF55, 0xff00DFAA, 0xff00DFFF,
50    0xff00FF55, 0xff00FFAA, 0xff2A0000, 0xff2A0055, 0xff2A00AA, 0xff2A00FF,
51    0xff2A1F00, 0xff2A1F55, 0xff2A1FAA, 0xff2A1FFF, 0xff2A3F00, 0xff2A3F55,
52    0xffFFFBF0, 0xffA0A0A4, 0xff808080, 0xffFF0000, 0xff00FF00, 0xffFF0000,
53    0xff0000FF, 0xffFF00FF, 0xff00FFFF, 0xffFFFFFF
54};
55const FX_DWORD g_dwMacPalette[256] = {
56    0xffFFFFFF, 0xffFFFFCC, 0xffFFFF99, 0xffFFFF66, 0xffFFFF33, 0xffFFFF00,
57    0xffFFCCFF, 0xffFFCCCC, 0xffFFCC99, 0xffFFCC66, 0xffFFCC33, 0xffFFCC00,
58    0xffFF99FF, 0xffFF99CC, 0xffFF9999, 0xffFF9966, 0xffFF9933, 0xffFF9900,
59    0xffFF66FF, 0xffFF66CC, 0xffFF6699, 0xffFF6666, 0xffFF6633, 0xffFF6600,
60    0xffFF33FF, 0xffFF33CC, 0xffFF3399, 0xffFF3366, 0xffFF3333, 0xffFF3300,
61    0xffFF00FF, 0xffFF00CC, 0xffFF0099, 0xffFF0066, 0xffFF0033, 0xffFF0000,
62    0xffCCFFFF, 0xffCCFFCC, 0xffCCFF99, 0xffCCFF66, 0xffCCFF33, 0xffCCFF00,
63    0xffCCCCFF, 0xffCCCCCC, 0xffCCCC99, 0xffCCCC66, 0xffCCCC33, 0xffCCCC00,
64    0xffCC99FF, 0xffCC99CC, 0xffCC9999, 0xffCC9966, 0xffCC9933, 0xffCC9900,
65    0xffCC66FF, 0xffCC66CC, 0xffCC6699, 0xffCC6666, 0xffCC6633, 0xffCC6600,
66    0xffCC33FF, 0xffCC33CC, 0xffCC3399, 0xffCC3366, 0xffCC3333, 0xffCC3300,
67    0xffCC00FF, 0xffCC00CC, 0xffCC0099, 0xffCC0066, 0xffCC0033, 0xffCC0000,
68    0xff99FFFF, 0xff99FFCC, 0xff99FF99, 0xff99FF66, 0xff99FF33, 0xff99FF00,
69    0xff99CCFF, 0xff99CCCC, 0xff99CC99, 0xff99CC66, 0xff99CC33, 0xff99CC00,
70    0xff9999FF, 0xff9999CC, 0xff999999, 0xff999966, 0xff999933, 0xff999900,
71    0xff9966FF, 0xff9966CC, 0xff996699, 0xff996666, 0xff996633, 0xff996600,
72    0xff9933FF, 0xff9933CC, 0xff993399, 0xff993366, 0xff993333, 0xff993300,
73    0xff9900FF, 0xff9900CC, 0xff990099, 0xff990066, 0xff990033, 0xff990000,
74    0xff66FFFF, 0xff66FFCC, 0xff66FF99, 0xff66FF66, 0xff66FF33, 0xff66FF00,
75    0xff66CCFF, 0xff66CCCC, 0xff66CC99, 0xff66CC66, 0xff66CC33, 0xff66CC00,
76    0xff6699FF, 0xff6699CC, 0xff669999, 0xff669966, 0xff669933, 0xff669900,
77    0xff6666FF, 0xff6666CC, 0xff666699, 0xff666666, 0xff666633, 0xff666600,
78    0xff6633FF, 0xff6633CC, 0xff663399, 0xff663366, 0xff663333, 0xff663300,
79    0xff6600FF, 0xff6600CC, 0xff660099, 0xff660066, 0xff660033, 0xff660000,
80    0xff33FFFF, 0xff33FFCC, 0xff33FF99, 0xff33FF66, 0xff33FF33, 0xff33FF00,
81    0xff33CCFF, 0xff33CCCC, 0xff33CC99, 0xff33CC66, 0xff33CC33, 0xff33CC00,
82    0xff3399FF, 0xff3399CC, 0xff339999, 0xff339966, 0xff339933, 0xff339900,
83    0xff3366FF, 0xff3366CC, 0xff336699, 0xff336666, 0xff336633, 0xff336600,
84    0xff3333FF, 0xff3333CC, 0xff333399, 0xff333366, 0xff333333, 0xff333300,
85    0xff3300FF, 0xff3300CC, 0xff330099, 0xff330066, 0xff330033, 0xff330000,
86    0xff00FFFF, 0xff00FFCC, 0xff00FF99, 0xff00FF66, 0xff00FF33, 0xff00FF00,
87    0xff00CCFF, 0xff00CCCC, 0xff00CC99, 0xff00CC66, 0xff00CC33, 0xff00CC00,
88    0xff0099FF, 0xff0099CC, 0xff009999, 0xff009966, 0xff009933, 0xff009900,
89    0xff0066FF, 0xff0066CC, 0xff006699, 0xff006666, 0xff006633, 0xff006600,
90    0xff0033FF, 0xff0033CC, 0xff003399, 0xff003366, 0xff003333, 0xff003300,
91    0xff0000FF, 0xff0000CC, 0xff000099, 0xff000066, 0xff000033,
92    0xffEE0000, 0xffDD0000, 0xffBB0000, 0xffAA0000, 0xff880000, 0xff770000,
93    0xff550000, 0xff440000, 0xff220000, 0xff110000, 0xff00EE00, 0xff00DD00,
94    0xff00BB00, 0xff00AA00, 0xff008800, 0xff007700, 0xff005500, 0xff004400,
95    0xff002200, 0xff001100, 0xff0000EE, 0xff0000DD, 0xff0000BB, 0xff0000AA,
96    0xff000088, 0xff000077, 0xff000055, 0xff000044, 0xff000022, 0xff000011,
97    0xffEEEEEE, 0xffDDDDDD, 0xffBBBBBB, 0xffAAAAAA, 0xff888888, 0xff777777,
98    0xff555555, 0xff444444, 0xff222222, 0xff111111, 0xff000000
99};
100class CFX_Palette : public CFX_Object
101{
102public:
103    CFX_Palette();
104    ~CFX_Palette();
105public:
106    FX_BOOL      BuildPalette(const CFX_DIBSource* pBitmap, int dwPaletteType);
107    FX_DWORD*    GetPalette() const
108    {
109        return m_pPalette;
110    }
111
112    FX_DWORD*    GetColorLut()const
113    {
114        return m_cLut;
115    }
116    FX_DWORD*    GetAmountLut()const
117    {
118        return m_aLut;
119    }
120    FX_INT32     Getlut()const
121    {
122        return m_lut;
123    }
124protected:
125    FX_DWORD*    m_pPalette;
126    FX_DWORD*    m_cLut;
127    FX_DWORD*    m_aLut;
128    int          m_lut;
129};
130int _Partition(FX_DWORD* alut, FX_DWORD* clut, int l, int r)
131{
132    FX_DWORD p_a = alut[l];
133    FX_DWORD p_c = clut[l];
134    while(l < r) {
135        while(l < r && alut[r] >= p_a) {
136            r--;
137        }
138        if (l < r) {
139            alut[l] = alut[r];
140            clut[l++] = clut[r];
141        }
142        while(l < r && alut[l] <= p_a) {
143            l++;
144        }
145        if (l < r) {
146            alut[r] = alut[l];
147            clut[r--] = clut[l];
148        }
149    }
150    alut[l] = p_a;
151    clut[l] = p_c;
152    return l;
153}
154void _Qsort(FX_DWORD* alut, FX_DWORD* clut, int l, int r)
155{
156    if(l < r) {
157        int pI = _Partition(alut, clut, l, r);
158        _Qsort(alut, clut, l, pI - 1);
159        _Qsort(alut, clut, pI + 1, r);
160    }
161}
162void _ColorDecode(FX_DWORD pal_v, FX_BYTE& r, FX_BYTE& g, FX_BYTE& b)
163{
164    r = (FX_BYTE)((pal_v & 0xf00) >> 4);
165    g = (FX_BYTE)(pal_v & 0x0f0);
166    b = (FX_BYTE)((pal_v & 0x00f) << 4);
167}
168void _Obtain_Pal(FX_DWORD* aLut, FX_DWORD*cLut, FX_DWORD* dest_pal, int pal_type, FX_DWORD* win_mac_pal, FX_DWORD lut)
169{
170    int row, col;
171    FX_DWORD lut_1 = lut - 1;
172    if (pal_type == FXDIB_PALETTE_LOC) {
173        for (row = 0; row < 256; row++) {
174            int lut_offset = lut_1 - row;
175            if (lut_offset < 0) {
176                lut_offset += 256;
177            }
178            FX_DWORD color = cLut[lut_offset];
179            FX_BYTE r, g, b;
180            _ColorDecode(color, r, g, b);
181            dest_pal[row] = ((FX_DWORD)r << 16) | ((FX_DWORD)g << 8) | b | 0xff000000;
182            aLut[lut_offset] = row;
183        }
184    } else {
185        for (row = 0; row < 256; row++) {
186            int lut_offset = lut_1 - row;
187            if (lut_offset < 0) {
188                lut_offset += 256;
189            }
190            FX_BYTE r, g, b;
191            _ColorDecode(cLut[lut_offset], r, g, b);
192            int error, min_error = 1000000;
193            int c_index = 0;
194            for (col = 0; col < 256; col++) {
195                FX_DWORD p_color = win_mac_pal[col];
196                int d_r = r - (FX_BYTE)(p_color >> 16);
197                int d_g = g - (FX_BYTE)(p_color >> 8);
198                int d_b = b - (FX_BYTE)p_color;
199                error = d_r * d_r + d_g * d_g + d_b * d_b;
200                if (error < min_error) {
201                    min_error = error;
202                    c_index = col;
203                }
204            }
205            dest_pal[row] =  win_mac_pal[c_index];
206            aLut[lut_offset] = row;
207        }
208    }
209}
210CFX_Palette::CFX_Palette()
211{
212    m_pPalette = NULL;
213    m_cLut = NULL;
214    m_aLut = NULL;
215    m_lut = 0;
216}
217CFX_Palette::~CFX_Palette()
218{
219    if (m_pPalette) {
220        FX_Free(m_pPalette);
221    }
222    if (m_cLut) {
223        FX_Free(m_cLut);
224    }
225    if (m_aLut) {
226        FX_Free(m_aLut);
227    }
228    m_lut = 0;
229}
230FX_BOOL CFX_Palette::BuildPalette(const CFX_DIBSource* pBitmap, int pal_type)
231{
232    if (pBitmap == NULL) {
233        return FALSE;
234    }
235    if (m_pPalette != NULL) {
236        FX_Free(m_pPalette);
237    }
238    m_pPalette = FX_Alloc(FX_DWORD, 256);
239    if (!m_pPalette) {
240        return FALSE;
241    }
242    FXSYS_memset32(m_pPalette, 0, sizeof(FX_DWORD) * 256);
243    int bpp    = pBitmap->GetBPP() / 8;
244    int width  = pBitmap->GetWidth();
245    int height = pBitmap->GetHeight();
246    if (m_cLut) {
247        FX_Free(m_cLut);
248        m_cLut = NULL;
249    }
250    if (m_aLut) {
251        FX_Free(m_aLut);
252        m_aLut = NULL;
253    }
254    m_cLut = FX_Alloc(FX_DWORD, 4096);
255    if (!m_cLut) {
256        return FALSE;
257    }
258    m_aLut = FX_Alloc(FX_DWORD, 4096);
259    if (!m_aLut) {
260        return FALSE;
261    }
262    FXSYS_memset32(m_aLut, 0, sizeof(FX_DWORD) * 4096);
263    FXSYS_memset32(m_cLut, 0, sizeof(FX_DWORD) * 4096);
264    int row, col;
265    m_lut = 0;
266    for (row = 0; row < height; row++) {
267        FX_BYTE* scan_line = (FX_BYTE*)pBitmap->GetScanline(row);
268        for (col = 0; col < width; col++) {
269            FX_BYTE* src_port = scan_line + col * bpp;
270            FX_DWORD b = src_port[0] & 0xf0;
271            FX_DWORD g = src_port[1] & 0xf0;
272            FX_DWORD r = src_port[2] & 0xf0;
273            FX_DWORD index = (r << 4) + g + (b >> 4);
274            m_aLut[index]++;
275        }
276    }
277    for (row = 0; row < 4096; row++) {
278        if (m_aLut[row] != 0) {
279            m_aLut[m_lut] = m_aLut[row];
280            m_cLut[m_lut] = row;
281            m_lut++;
282        }
283    }
284    _Qsort(m_aLut, m_cLut, 0, m_lut - 1);
285    FX_DWORD* win_mac_pal = NULL;
286    if (pal_type == FXDIB_PALETTE_WIN) {
287        win_mac_pal = (FX_DWORD*)g_dwWinPalette;
288    } else if (pal_type == FXDIB_PALETTE_MAC) {
289        win_mac_pal = (FX_DWORD*)g_dwMacPalette;
290    }
291    _Obtain_Pal(m_aLut, m_cLut, m_pPalette, pal_type, win_mac_pal, m_lut);
292    return TRUE;
293}
294FX_BOOL _ConvertBuffer_1bppMask2Gray(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
295                                     const CFX_DIBSource* pSrcBitmap, int src_left, int src_top)
296{
297    FX_BYTE set_gray, reset_gray;
298    set_gray = 0xff;
299    reset_gray = 0x00;
300    for (int row = 0; row < height; row ++) {
301        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
302        FXSYS_memset8(dest_scan, reset_gray, width);
303        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row);
304        for (int col = src_left; col < src_left + width; col ++) {
305            if (src_scan[col / 8] & (1 << (7 - col % 8))) {
306                *dest_scan = set_gray;
307            }
308            dest_scan ++;
309        }
310    }
311    return TRUE;
312}
313FX_BOOL _ConvertBuffer_8bppMask2Gray(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
314                                     const CFX_DIBSource* pSrcBitmap, int src_left, int src_top)
315{
316    for (int row = 0; row < height; row ++) {
317        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
318        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left;
319        FXSYS_memcpy32(dest_scan, src_scan, width);
320    }
321    return TRUE;
322}
323FX_BOOL _ConvertBuffer_1bppPlt2Gray(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
324                                    const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
325{
326    FX_DWORD* src_plt = pSrcBitmap->GetPalette();
327    FX_BYTE gray[2];
328    if (pIccTransform) {
329        FX_DWORD plt[2];
330        if (pSrcBitmap->IsCmykImage()) {
331            plt[0] = FXCMYK_TODIB(src_plt[0]);
332            plt[1] = FXCMYK_TODIB(src_plt[1]);
333        } else {
334            FX_LPBYTE bgr_ptr = (FX_LPBYTE)plt;
335            bgr_ptr[0] = FXARGB_B(src_plt[0]);
336            bgr_ptr[1] = FXARGB_G(src_plt[0]);
337            bgr_ptr[2] = FXARGB_R(src_plt[0]);
338            bgr_ptr[3] = FXARGB_B(src_plt[1]);
339            bgr_ptr[4] = FXARGB_G(src_plt[1]);
340            bgr_ptr[5] = FXARGB_R(src_plt[1]);
341        }
342        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
343        pIccModule->TranslateScanline(pIccTransform, gray, (FX_LPCBYTE)plt, 2);
344    } else {
345        FX_BYTE reset_r, reset_g, reset_b,
346                set_r, set_g, set_b;
347        if (pSrcBitmap->IsCmykImage()) {
348            AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[0]), FXSYS_GetMValue(src_plt[0]), FXSYS_GetYValue(src_plt[0]), FXSYS_GetKValue(src_plt[0]),
349                               reset_r, reset_g, reset_b);
350            AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[1]), FXSYS_GetMValue(src_plt[1]), FXSYS_GetYValue(src_plt[1]), FXSYS_GetKValue(src_plt[1]),
351                               set_r, set_g, set_b);
352        } else {
353            reset_r = FXARGB_R(src_plt[0]);
354            reset_g = FXARGB_G(src_plt[0]);
355            reset_b = FXARGB_B(src_plt[0]);
356            set_r = FXARGB_R(src_plt[1]);
357            set_g = FXARGB_G(src_plt[1]);
358            set_b = FXARGB_B(src_plt[1]);
359        }
360        gray[0] = FXRGB2GRAY(reset_r, reset_g, reset_b);
361        gray[1] = FXRGB2GRAY(set_r, set_g, set_b);
362    }
363    for (int row = 0; row < height; row ++) {
364        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
365        FXSYS_memset8(dest_scan, gray[0], width);
366        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row);
367        for (int col = src_left; col < src_left + width; col ++) {
368            if (src_scan[col / 8] & (1 << (7 - col % 8))) {
369                *dest_scan = gray[1];
370            }
371            dest_scan ++;
372        }
373    }
374    return TRUE;
375}
376FX_BOOL _ConvertBuffer_8bppPlt2Gray(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
377                                    const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
378{
379    FX_DWORD* src_plt = pSrcBitmap->GetPalette();
380    FX_BYTE gray[256];
381    if (pIccTransform) {
382        FX_DWORD plt[256];
383        if (pSrcBitmap->IsCmykImage()) {
384            for (int i = 0; i < 256; i ++) {
385                plt[i] = FXCMYK_TODIB(src_plt[i]);
386            }
387        } else {
388            FX_LPBYTE bgr_ptr = (FX_LPBYTE)plt;
389            for (int i = 0; i < 256; i ++) {
390                *bgr_ptr++ = FXARGB_B(src_plt[i]);
391                *bgr_ptr++ = FXARGB_G(src_plt[i]);
392                *bgr_ptr++ = FXARGB_R(src_plt[i]);
393            }
394        }
395        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
396        pIccModule->TranslateScanline(pIccTransform, gray, (FX_LPCBYTE)plt, 256);
397    } else {
398        if (pSrcBitmap->IsCmykImage()) {
399            FX_BYTE r, g, b;
400            for (int i = 0; i < 256; i ++) {
401                AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[i]), FXSYS_GetMValue(src_plt[i]), FXSYS_GetYValue(src_plt[i]), FXSYS_GetKValue(src_plt[i]),
402                                   r, g, b);
403                gray[i] = FXRGB2GRAY(r, g, b);
404            }
405        } else
406            for (int i = 0; i < 256; i ++) {
407                gray[i] = FXRGB2GRAY(FXARGB_R(src_plt[i]), FXARGB_G(src_plt[i]), FXARGB_B(src_plt[i]));
408            }
409    }
410    for (int row = 0; row < height; row ++) {
411        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
412        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left;
413        for (int col = 0; col < width; col ++) {
414            *dest_scan++ = gray[*src_scan++];
415        }
416    }
417    return TRUE;
418}
419FX_BOOL _ConvertBuffer_RgbOrCmyk2Gray(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
420                                      const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
421{
422    int Bpp = pSrcBitmap->GetBPP() / 8;
423    if (pIccTransform) {
424        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
425        if (Bpp == 3 || pSrcBitmap->IsCmykImage()) {
426            for (int row = 0; row < height; row ++) {
427                FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
428                FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp;
429                pIccModule->TranslateScanline(pIccTransform, dest_scan, src_scan, width);
430            }
431        } else {
432            for (int row = 0; row < height; row ++) {
433                FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
434                FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
435                for (int col = 0; col < width; col ++) {
436                    pIccModule->TranslateScanline(pIccTransform, dest_scan, src_scan, 1);
437                    dest_scan++;
438                    src_scan += 4;
439                }
440            }
441        }
442    } else {
443        if (pSrcBitmap->IsCmykImage()) {
444            for (int row = 0; row < height; row ++) {
445                FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
446                FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
447                for (int col = 0; col < width; col ++) {
448                    FX_BYTE r, g, b;
449                    AdobeCMYK_to_sRGB1(FXSYS_GetCValue((FX_DWORD)src_scan[0]), FXSYS_GetMValue((FX_DWORD)src_scan[1]), FXSYS_GetYValue((FX_DWORD)src_scan[2]), FXSYS_GetKValue((FX_DWORD)src_scan[3]),
450                                       r, g, b);
451                    *dest_scan++ = FXRGB2GRAY(r, g, b);
452                    src_scan += 4;
453                }
454            }
455        } else
456            for (int row = 0; row < height; row ++) {
457                FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
458                FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp;
459                for (int col = 0; col < width; col ++) {
460                    *dest_scan++ = FXRGB2GRAY(src_scan[2], src_scan[1], src_scan[0]);
461                    src_scan += Bpp;
462                }
463            }
464    }
465    return TRUE;
466}
467inline void _ConvertBuffer_IndexCopy(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
468                                     const CFX_DIBSource* pSrcBitmap, int src_left, int src_top)
469{
470    if (pSrcBitmap->GetBPP() == 1) {
471        for (int row = 0; row < height; row ++) {
472            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
473            FXSYS_memset32(dest_scan, 0, width);
474            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row);
475            for (int col = src_left; col < src_left + width; col ++) {
476                if (src_scan[col / 8] & (1 << (7 - col % 8))) {
477                    *dest_scan = 1;
478                }
479                dest_scan ++;
480            }
481        }
482    } else {
483        for (int row = 0; row < height; row ++) {
484            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
485            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left;
486            FXSYS_memcpy32(dest_scan, src_scan, width);
487        }
488    }
489}
490FX_BOOL _ConvertBuffer_Plt2PltRgb8(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
491                                   const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, FX_DWORD* dst_plt, void* pIccTransform)
492{
493    _ConvertBuffer_IndexCopy(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
494    FX_DWORD* src_plt = pSrcBitmap->GetPalette();
495    int plt_size = pSrcBitmap->GetPaletteSize();
496    if (pIccTransform) {
497        FX_DWORD plt[256];
498        FX_LPBYTE bgr_ptr = (FX_LPBYTE)plt;
499        if (pSrcBitmap->IsCmykImage()) {
500            for (int i = 0; i < plt_size; i ++) {
501                plt[i] = FXCMYK_TODIB(src_plt[i]);
502            }
503        } else {
504            for (int i = 0; i < plt_size; i ++) {
505                *bgr_ptr++ = FXARGB_B(src_plt[i]);
506                *bgr_ptr++ = FXARGB_G(src_plt[i]);
507                *bgr_ptr++ = FXARGB_R(src_plt[i]);
508            }
509            bgr_ptr = (FX_LPBYTE)plt;
510        }
511        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
512        pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)plt, (FX_LPCBYTE)plt, plt_size);
513        for (int i = 0; i < plt_size; i ++) {
514            dst_plt[i] = FXARGB_MAKE(0xff, bgr_ptr[2], bgr_ptr[1], bgr_ptr[0]);
515            bgr_ptr += 3;
516        }
517    } else {
518        if (pSrcBitmap->IsCmykImage()) {
519            for (int i = 0; i < plt_size; i ++) {
520                FX_BYTE r, g, b;
521                AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[i]), FXSYS_GetMValue(src_plt[i]), FXSYS_GetYValue(src_plt[i]), FXSYS_GetKValue(src_plt[i]),
522                                   r, g, b);
523                dst_plt[i] = FXARGB_MAKE(0xff, r, g, b);
524            }
525        } else {
526            FXSYS_memcpy32(dst_plt, src_plt, plt_size * 4);
527        }
528    }
529    return TRUE;
530}
531inline FX_BOOL _ConvertBuffer_Rgb2PltRgb8_NoTransform(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
532        const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, FX_DWORD* dst_plt)
533{
534    int bpp = pSrcBitmap->GetBPP() / 8;
535    int row, col;
536    CFX_Palette palette;
537    palette.BuildPalette(pSrcBitmap, FXDIB_PALETTE_LOC);
538    FX_DWORD* cLut = palette.GetColorLut();
539    FX_DWORD* aLut = palette.GetAmountLut();
540    if (cLut == NULL || aLut == NULL) {
541        return FALSE;
542    }
543    int lut = palette.Getlut();
544    FX_DWORD* pPalette = palette.GetPalette();
545    if (lut > 256) {
546        int err, min_err;
547        int lut_256 = lut - 256;
548        for (row = 0; row < lut_256; row++) {
549            min_err = 1000000;
550            FX_BYTE r, g, b;
551            _ColorDecode(cLut[row], r, g, b);
552            int clrindex = 0;
553            for (int col = 0; col < 256; col++) {
554                FX_DWORD p_color = *(pPalette + col);
555                int d_r = r - (FX_BYTE)(p_color >> 16);
556                int d_g = g - (FX_BYTE)(p_color >> 8);
557                int d_b = b - (FX_BYTE)(p_color);
558                err = d_r * d_r + d_g * d_g + d_b * d_b;
559                if (err < min_err) {
560                    min_err = err;
561                    clrindex = col;
562                }
563            }
564            aLut[row] = clrindex;
565        }
566    }
567    FX_INT32 lut_1 = lut - 1;
568    for (row = 0; row < height; row ++) {
569        FX_BYTE* src_scan = (FX_BYTE*)pSrcBitmap->GetScanline(src_top + row) + src_left;
570        FX_BYTE* dest_scan = dest_buf + row * dest_pitch;
571        for (col = 0; col < width; col++) {
572            FX_BYTE* src_port = src_scan + col * bpp;
573            int r = src_port[2] & 0xf0;
574            int g = src_port[1] & 0xf0;
575            int b = src_port[0] & 0xf0;
576            FX_DWORD clrindex = (r << 4) + g + (b >> 4);
577            for (int i = lut_1; i >= 0; i--)
578                if (clrindex == cLut[i]) {
579                    *(dest_scan + col) = (FX_BYTE)(aLut[i]);
580                    break;
581                }
582        }
583    }
584    FXSYS_memcpy32(dst_plt, pPalette, sizeof(FX_DWORD) * 256);
585    return TRUE;
586}
587FX_BOOL _ConvertBuffer_Rgb2PltRgb8(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
588                                   const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, FX_DWORD* dst_plt, void* pIccTransform)
589{
590    ICodec_IccModule* pIccModule = NULL;
591    if (pIccTransform) {
592        pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
593    }
594    FX_BOOL ret = _ConvertBuffer_Rgb2PltRgb8_NoTransform(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, dst_plt);
595    if (ret && pIccTransform) {
596        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
597        for (int i = 0; i < 256; i++) {
598            FX_ARGB* plt = dst_plt + i;
599            FX_ARGB plt_entry = FXARGB_TODIB(*plt);
600            pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&plt_entry, (FX_LPCBYTE)&plt_entry, 1);
601            *plt = FXARGB_TODIB(plt_entry);
602        }
603    }
604    return ret;
605}
606FX_BOOL _ConvertBuffer_1bppMask2Rgb(FXDIB_Format dst_format, FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
607                                    const CFX_DIBSource* pSrcBitmap, int src_left, int src_top)
608{
609    int comps = (dst_format & 0xff) / 8;
610    FX_BYTE set_gray, reset_gray;
611    set_gray = 0xff;
612    reset_gray = 0x00;
613    for (int row = 0; row < height; row ++) {
614        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
615        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row);
616        for (int col = src_left; col < src_left + width; col ++) {
617            if (src_scan[col / 8] & (1 << (7 - col % 8))) {
618                dest_scan[0] = set_gray;
619                dest_scan[1] = set_gray;
620                dest_scan[2] = set_gray;
621            } else {
622                dest_scan[0] = reset_gray;
623                dest_scan[1] = reset_gray;
624                dest_scan[2] = reset_gray;
625            }
626            dest_scan += comps;
627        }
628    }
629    return TRUE;
630}
631FX_BOOL _ConvertBuffer_8bppMask2Rgb(FXDIB_Format dst_format, FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
632                                    const CFX_DIBSource* pSrcBitmap, int src_left, int src_top)
633{
634    int comps = (dst_format & 0xff) / 8;
635    for (int row = 0; row < height; row ++) {
636        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
637        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left;
638        FX_BYTE src_pixel;
639        for (int col = 0; col < width; col ++) {
640            src_pixel = *src_scan++;
641            *dest_scan++ = src_pixel;
642            *dest_scan++ = src_pixel;
643            *dest_scan   = src_pixel;
644            dest_scan += comps - 2;
645        }
646    }
647    return TRUE;
648}
649FX_BOOL _ConvertBuffer_1bppPlt2Rgb(FXDIB_Format dst_format, FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
650                                   const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
651{
652    int comps = (dst_format & 0xff) / 8;
653    FX_DWORD* src_plt = pSrcBitmap->GetPalette();
654    FX_DWORD plt[2];
655    FX_LPBYTE bgr_ptr = (FX_LPBYTE)plt;
656    if (pSrcBitmap->IsCmykImage()) {
657        plt[0] = FXCMYK_TODIB(src_plt[0]);
658        plt[1] = FXCMYK_TODIB(src_plt[1]);
659    } else {
660        bgr_ptr[0] = FXARGB_B(src_plt[0]);
661        bgr_ptr[1] = FXARGB_G(src_plt[0]);
662        bgr_ptr[2] = FXARGB_R(src_plt[0]);
663        bgr_ptr[3] = FXARGB_B(src_plt[1]);
664        bgr_ptr[4] = FXARGB_G(src_plt[1]);
665        bgr_ptr[5] = FXARGB_R(src_plt[1]);
666    }
667    if (pIccTransform) {
668        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
669        pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)plt, (FX_LPCBYTE)plt, 2);
670    } else {
671        if (pSrcBitmap->IsCmykImage()) {
672            AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[0]), FXSYS_GetMValue(src_plt[0]), FXSYS_GetYValue(src_plt[0]), FXSYS_GetKValue(src_plt[0]),
673                               bgr_ptr[2], bgr_ptr[1], bgr_ptr[0]);
674            AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[1]), FXSYS_GetMValue(src_plt[1]), FXSYS_GetYValue(src_plt[1]), FXSYS_GetKValue(src_plt[1]),
675                               bgr_ptr[5], bgr_ptr[4], bgr_ptr[3]);
676        }
677    }
678    for (int row = 0; row < height; row ++) {
679        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
680        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row);
681        for (int col = src_left; col < src_left + width; col ++) {
682            if (src_scan[col / 8] & (1 << (7 - col % 8))) {
683                *dest_scan++ = bgr_ptr[3];
684                *dest_scan++ = bgr_ptr[4];
685                *dest_scan   = bgr_ptr[5];
686            } else {
687                *dest_scan++ = bgr_ptr[0];
688                *dest_scan++ = bgr_ptr[1];
689                *dest_scan   = bgr_ptr[2];
690            }
691            dest_scan += comps - 2;
692        }
693    }
694    return TRUE;
695}
696FX_BOOL _ConvertBuffer_8bppPlt2Rgb(FXDIB_Format dst_format, FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
697                                   const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
698{
699    int comps = (dst_format & 0xff) / 8;
700    FX_DWORD* src_plt = pSrcBitmap->GetPalette();
701    FX_DWORD plt[256];
702    FX_LPBYTE bgr_ptr = (FX_LPBYTE)plt;
703    if (!pSrcBitmap->IsCmykImage()) {
704        for (int i = 0; i < 256; i++) {
705            *bgr_ptr++ = FXARGB_B(src_plt[i]);
706            *bgr_ptr++ = FXARGB_G(src_plt[i]);
707            *bgr_ptr++ = FXARGB_R(src_plt[i]);
708        }
709        bgr_ptr = (FX_LPBYTE)plt;
710    }
711    if (pIccTransform) {
712        if (pSrcBitmap->IsCmykImage()) {
713            for (int i = 0; i < 256; i++) {
714                plt[i] = FXCMYK_TODIB(src_plt[i]);
715            }
716        }
717        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
718        pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)plt, (FX_LPCBYTE)plt, 256);
719    } else {
720        if (pSrcBitmap->IsCmykImage()) {
721            for (int i = 0; i < 256; i++) {
722                AdobeCMYK_to_sRGB1(FXSYS_GetCValue(src_plt[i]), FXSYS_GetMValue(src_plt[i]), FXSYS_GetYValue(src_plt[i]), FXSYS_GetKValue(src_plt[i]),
723                                   bgr_ptr[2], bgr_ptr[1], bgr_ptr[0]);
724                bgr_ptr += 3;
725            }
726            bgr_ptr = (FX_LPBYTE)plt;
727        }
728    }
729    for (int row = 0; row < height; row ++) {
730        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
731        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left;
732        for (int col = 0; col < width; col ++) {
733            FX_LPBYTE src_pixel = bgr_ptr + 3 * (*src_scan++);
734            *dest_scan++ = *src_pixel++;
735            *dest_scan++ = *src_pixel++;
736            *dest_scan   = *src_pixel++;
737            dest_scan += comps - 2;
738        }
739    }
740    return TRUE;
741}
742FX_BOOL _ConvertBuffer_24bppRgb2Rgb24(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
743                                      const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
744{
745    if (pIccTransform) {
746        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
747        for (int row = 0; row < height; row ++) {
748            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
749            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 3;
750            pIccModule->TranslateScanline(pIccTransform, dest_scan, src_scan, width);
751        }
752    } else {
753        for (int row = 0; row < height; row ++) {
754            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
755            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 3;
756            FXSYS_memcpy32(dest_scan, src_scan, width * 3);
757        }
758    }
759    return TRUE;
760}
761FX_BOOL _ConvertBuffer_32bppRgb2Rgb24(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
762                                      const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
763{
764    for (int row = 0; row < height; row ++) {
765        FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
766        FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
767        for (int col = 0; col < width; col ++) {
768            *dest_scan++ = *src_scan++;
769            *dest_scan++ = *src_scan++;
770            *dest_scan++ = *src_scan++;
771            src_scan++;
772        }
773    }
774    if (pIccTransform) {
775        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
776        for (int row = 0; row < height; row ++) {
777            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
778            pIccModule->TranslateScanline(pIccTransform, dest_scan, dest_scan, width);
779        }
780    }
781    return TRUE;
782}
783FX_BOOL _ConvertBuffer_Rgb2Rgb32(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
784                                 const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
785{
786    int comps = pSrcBitmap->GetBPP() / 8;
787    if (pIccTransform) {
788        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
789        for (int row = 0; row < height; row ++) {
790            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
791            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * comps;
792            for (int col = 0; col < width; col ++) {
793                pIccModule->TranslateScanline(pIccTransform, dest_scan, src_scan, 1);
794                dest_scan += 4;
795                src_scan += comps;
796            }
797        }
798    } else {
799        for (int row = 0; row < height; row ++) {
800            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
801            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * comps;
802            for (int col = 0; col < width; col ++) {
803                *dest_scan++ = *src_scan++;
804                *dest_scan++ = *src_scan++;
805                *dest_scan++ = *src_scan++;
806                dest_scan++;
807                src_scan += comps - 3;
808            }
809        }
810    }
811    return TRUE;
812}
813FX_BOOL _ConvertBuffer_32bppCmyk2Rgb32(FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
814                                       const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform)
815{
816    if (pIccTransform) {
817        ICodec_IccModule* pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
818        for (int row = 0; row < height; row ++) {
819            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
820            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
821            for (int col = 0; col < width; col ++) {
822                pIccModule->TranslateScanline(pIccTransform, dest_scan, src_scan, 1);
823                dest_scan += 4;
824                src_scan += 4;
825            }
826        }
827    } else {
828        for (int row = 0; row < height; row ++) {
829            FX_LPBYTE dest_scan = dest_buf + row * dest_pitch;
830            FX_LPCBYTE src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
831            for (int col = 0; col < width; col ++) {
832                AdobeCMYK_to_sRGB1(src_scan[0], src_scan[1], src_scan[2], src_scan[3],
833                                   dest_scan[2], dest_scan[1], dest_scan[0]);
834                dest_scan += 4;
835                src_scan += 4;
836            }
837        }
838    }
839    return TRUE;
840}
841FX_BOOL ConvertBuffer(FXDIB_Format dest_format, FX_LPBYTE dest_buf, int dest_pitch, int width, int height,
842                      const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, FX_DWORD*& d_pal, void* pIccTransform)
843{
844    FXDIB_Format src_format = pSrcBitmap->GetFormat();
845    if (!CFX_GEModule::Get()->GetCodecModule() || !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) {
846        pIccTransform = NULL;
847    }
848    switch (dest_format) {
849        case FXDIB_Invalid:
850        case FXDIB_1bppCmyk:
851        case FXDIB_1bppMask:
852        case FXDIB_1bppRgb:
853            ASSERT(FALSE);
854            return FALSE;
855        case FXDIB_8bppMask: {
856                if ((src_format & 0xff) == 1) {
857                    if (pSrcBitmap->GetPalette()) {
858                        return _ConvertBuffer_1bppPlt2Gray(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
859                    }
860                    return _ConvertBuffer_1bppMask2Gray(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
861                } else if ((src_format & 0xff) == 8) {
862                    if (pSrcBitmap->GetPalette()) {
863                        return _ConvertBuffer_8bppPlt2Gray(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
864                    }
865                    return _ConvertBuffer_8bppMask2Gray(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
866                } else if ((src_format & 0xff) >= 24) {
867                    return _ConvertBuffer_RgbOrCmyk2Gray(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
868                }
869                return FALSE;
870            }
871        case FXDIB_8bppRgb:
872        case FXDIB_8bppRgba: {
873                if ((src_format & 0xff) == 8 && pSrcBitmap->GetPalette() == NULL) {
874                    return ConvertBuffer(FXDIB_8bppMask, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, d_pal, pIccTransform);
875                }
876                d_pal = FX_Alloc(FX_DWORD, 256);
877                if (!d_pal) {
878                    return FALSE;
879                }
880                FXSYS_memset32(d_pal, 0, sizeof(FX_DWORD) * 256);
881                if (((src_format & 0xff) == 1 || (src_format & 0xff) == 8) && pSrcBitmap->GetPalette()) {
882                    return _ConvertBuffer_Plt2PltRgb8(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, d_pal, pIccTransform);
883                } else if ((src_format & 0xff) >= 24) {
884                    return _ConvertBuffer_Rgb2PltRgb8(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, d_pal, pIccTransform);
885                }
886                return FALSE;
887            }
888        case FXDIB_Rgb:
889        case FXDIB_Rgba: {
890                if ((src_format & 0xff) == 1) {
891                    if (pSrcBitmap->GetPalette()) {
892                        return _ConvertBuffer_1bppPlt2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
893                    }
894                    return _ConvertBuffer_1bppMask2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
895                } else if ((src_format & 0xff) == 8) {
896                    if (pSrcBitmap->GetPalette()) {
897                        return _ConvertBuffer_8bppPlt2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
898                    }
899                    return _ConvertBuffer_8bppMask2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
900                } else if ((src_format & 0xff) == 24) {
901                    return _ConvertBuffer_24bppRgb2Rgb24(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
902                } else if ((src_format & 0xff) == 32) {
903                    return _ConvertBuffer_32bppRgb2Rgb24(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
904                }
905                return FALSE;
906            }
907        case FXDIB_Argb:
908        case FXDIB_Rgb32: {
909                if ((src_format & 0xff) == 1) {
910                    if (pSrcBitmap->GetPalette()) {
911                        return _ConvertBuffer_1bppPlt2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
912                    }
913                    return _ConvertBuffer_1bppMask2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
914                } else if ((src_format & 0xff) == 8) {
915                    if (pSrcBitmap->GetPalette()) {
916                        return _ConvertBuffer_8bppPlt2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
917                    }
918                    return _ConvertBuffer_8bppMask2Rgb(dest_format, dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top);
919                } else if ((src_format & 0xff) >= 24) {
920                    if (src_format & 0x0400) {
921                        return _ConvertBuffer_32bppCmyk2Rgb32(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
922                    }
923                    return _ConvertBuffer_Rgb2Rgb32(dest_buf, dest_pitch, width, height, pSrcBitmap, src_left, src_top, pIccTransform);
924                }
925                return FALSE;
926            }
927        default:
928            return FALSE;
929    }
930    return FALSE;
931}
932CFX_DIBitmap* CFX_DIBSource::CloneConvert(FXDIB_Format dest_format, const FX_RECT* pClip, void* pIccTransform) const
933{
934    if(dest_format == GetFormat() && pIccTransform == NULL) {
935        return Clone(pClip);
936    }
937    if (pClip) {
938        CFX_DIBitmap* pClone = Clone(pClip);
939        if (pClone == NULL) {
940            return NULL;
941        }
942        if(!pClone->ConvertFormat(dest_format, pIccTransform)) {
943            delete pClone;
944            return NULL;
945        }
946        return pClone;
947    }
948    CFX_DIBitmap* pClone = FX_NEW CFX_DIBitmap;
949    if (!pClone) {
950        return NULL;
951    }
952    if(!pClone->Create(m_Width, m_Height, dest_format)) {
953        delete pClone;
954        return NULL;
955    }
956    FX_BOOL ret = TRUE;
957    CFX_DIBitmap* pSrcAlpha = NULL;
958    if (m_AlphaFlag & 2) {
959        pSrcAlpha = (GetFormat() == FXDIB_Argb) ? GetAlphaMask() : m_pAlphaMask;
960        if (pSrcAlpha == NULL) {
961            delete pClone;
962            return NULL;
963        }
964    }
965    if (dest_format & 0x0200) {
966        if (dest_format == FXDIB_Argb)
967            ret = pSrcAlpha ?
968                  pClone->LoadChannel(FXDIB_Alpha, pSrcAlpha, FXDIB_Alpha) :
969                  pClone->LoadChannel(FXDIB_Alpha, 0xff);
970        else {
971            ret = pClone->CopyAlphaMask(pSrcAlpha);
972        }
973    }
974    if (pSrcAlpha && pSrcAlpha != m_pAlphaMask) {
975        delete pSrcAlpha;
976        pSrcAlpha = NULL;
977    }
978    if (!ret) {
979        delete pClone;
980        return NULL;
981    }
982    FX_DWORD* pal_8bpp = NULL;
983    ret = ConvertBuffer(dest_format, pClone->GetBuffer(), pClone->GetPitch(), m_Width, m_Height, this, 0, 0, pal_8bpp, pIccTransform);
984    if (!ret) {
985        if (pal_8bpp) {
986            FX_Free(pal_8bpp);
987        }
988        delete pClone;
989        return NULL;
990    }
991    if (pal_8bpp) {
992        pClone->CopyPalette(pal_8bpp);
993        FX_Free(pal_8bpp);
994        pal_8bpp = NULL;
995    }
996    return pClone;
997}
998FX_BOOL CFX_DIBitmap::ConvertFormat(FXDIB_Format dest_format, void* pIccTransform)
999{
1000    FXDIB_Format src_format = GetFormat();
1001    if (dest_format == src_format && pIccTransform == NULL) {
1002        return TRUE;
1003    }
1004    if (dest_format == FXDIB_8bppMask && src_format == FXDIB_8bppRgb && m_pPalette == NULL) {
1005        m_AlphaFlag = 1;
1006        return TRUE;
1007    }
1008    if (dest_format == FXDIB_Argb && src_format == FXDIB_Rgb32 && pIccTransform == NULL) {
1009        m_AlphaFlag = 2;
1010        for (int row = 0; row < m_Height; row ++) {
1011            FX_LPBYTE scanline = m_pBuffer + row * m_Pitch + 3;
1012            for (int col = 0; col < m_Width; col ++) {
1013                *scanline = 0xff;
1014                scanline += 4;
1015            }
1016        }
1017        return TRUE;
1018    }
1019    int dest_bpp = dest_format & 0xff;
1020    int dest_pitch = (dest_bpp * m_Width + 31) / 32 * 4;
1021    FX_LPBYTE dest_buf = FX_AllocNL(FX_BYTE, dest_pitch * m_Height + 4);
1022    if (dest_buf == NULL) {
1023        return FALSE;
1024    }
1025    CFX_DIBitmap* pAlphaMask = NULL;
1026    if (dest_format == FXDIB_Argb) {
1027        FXSYS_memset8(dest_buf, 0xff, dest_pitch * m_Height + 4);
1028        if (m_pAlphaMask) {
1029            for (int row = 0; row < m_Height; row ++) {
1030                FX_LPBYTE pDstScanline = dest_buf + row * dest_pitch + 3;
1031                FX_LPCBYTE pSrcScanline = m_pAlphaMask->GetScanline(row);
1032                for (int col = 0; col < m_Width; col ++) {
1033                    *pDstScanline = *pSrcScanline++;
1034                    pDstScanline += 4;
1035                }
1036            }
1037        }
1038    } else if (dest_format & 0x0200) {
1039        if (src_format == FXDIB_Argb) {
1040            pAlphaMask = GetAlphaMask();
1041            if (pAlphaMask == NULL) {
1042                FX_Free(dest_buf);
1043                return FALSE;
1044            }
1045        } else {
1046            if (m_pAlphaMask == NULL) {
1047                if (!BuildAlphaMask()) {
1048                    FX_Free(dest_buf);
1049                    return FALSE;
1050                }
1051                pAlphaMask = m_pAlphaMask;
1052                m_pAlphaMask = NULL;
1053            } else {
1054                pAlphaMask = m_pAlphaMask;
1055            }
1056        }
1057    }
1058    FX_BOOL ret = FALSE;
1059    FX_DWORD* pal_8bpp = NULL;
1060    ret = ConvertBuffer(dest_format, dest_buf, dest_pitch, m_Width, m_Height, this, 0, 0, pal_8bpp, pIccTransform);
1061    if (!ret) {
1062        if (pal_8bpp) {
1063            FX_Free(pal_8bpp);
1064        }
1065        if (pAlphaMask != m_pAlphaMask) {
1066            delete pAlphaMask;
1067        }
1068        if (dest_buf) {
1069            FX_Free(dest_buf);
1070        }
1071        return FALSE;
1072    }
1073    if (m_pAlphaMask && pAlphaMask != m_pAlphaMask) {
1074        delete m_pAlphaMask;
1075    }
1076    m_pAlphaMask = pAlphaMask;
1077    if (m_pPalette) {
1078        FX_Free(m_pPalette);
1079    }
1080    m_pPalette = pal_8bpp;
1081    if (!m_bExtBuf) {
1082        FX_Free(m_pBuffer);
1083    }
1084    m_bExtBuf = FALSE;
1085    m_pBuffer = dest_buf;
1086    m_bpp = (FX_BYTE)dest_format;
1087    m_AlphaFlag = (FX_BYTE)(dest_format >> 8);
1088    m_Pitch = dest_pitch;
1089    return TRUE;
1090}
1091