1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/include/fxge/fx_ge.h"
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
#include <windows.h>
#include "core/fxge/win32/win32_int.h"
#include "core/include/fxge/fx_ge_win32.h"
CFX_ByteString CFX_WindowsDIB::GetBitmapInfo(const CFX_DIBitmap* pBitmap) {
CFX_ByteString result;
int len = sizeof(BITMAPINFOHEADER);
if (pBitmap->GetBPP() == 1 || pBitmap->GetBPP() == 8) {
len += sizeof(DWORD) * (int)(1 << pBitmap->GetBPP());
}
BITMAPINFOHEADER* pbmih = (BITMAPINFOHEADER*)result.GetBuffer(len);
FXSYS_memset(pbmih, 0, sizeof(BITMAPINFOHEADER));
pbmih->biSize = sizeof(BITMAPINFOHEADER);
pbmih->biBitCount = pBitmap->GetBPP();
pbmih->biCompression = BI_RGB;
pbmih->biHeight = -(int)pBitmap->GetHeight();
pbmih->biPlanes = 1;
pbmih->biWidth = pBitmap->GetWidth();
if (pBitmap->GetBPP() == 8) {
FX_DWORD* pPalette = (FX_DWORD*)(pbmih + 1);
if (pBitmap->GetPalette()) {
for (int i = 0; i < 256; i++) {
pPalette[i] = pBitmap->GetPalette()[i];
}
} else {
for (int i = 0; i < 256; i++) {
pPalette[i] = i * 0x010101;
}
}
}
if (pBitmap->GetBPP() == 1) {
FX_DWORD* pPalette = (FX_DWORD*)(pbmih + 1);
if (pBitmap->GetPalette()) {
pPalette[0] = pBitmap->GetPalette()[0];
pPalette[1] = pBitmap->GetPalette()[1];
} else {
pPalette[0] = 0;
pPalette[1] = 0xffffff;
}
}
result.ReleaseBuffer(len);
return result;
}
CFX_DIBitmap* _FX_WindowsDIB_LoadFromBuf(BITMAPINFO* pbmi,
LPVOID pData,
FX_BOOL bAlpha) {
int width = pbmi->bmiHeader.biWidth;
int height = pbmi->bmiHeader.biHeight;
BOOL bBottomUp = TRUE;
if (height < 0) {
height = -height;
bBottomUp = FALSE;
}
int pitch = (width * pbmi->bmiHeader.biBitCount + 31) / 32 * 4;
CFX_DIBitmap* pBitmap = new CFX_DIBitmap;
FXDIB_Format format = bAlpha
? (FXDIB_Format)(pbmi->bmiHeader.biBitCount + 0x200)
: (FXDIB_Format)pbmi->bmiHeader.biBitCount;
FX_BOOL ret = pBitmap->Create(width, height, format);
if (!ret) {
delete pBitmap;
return NULL;
}
FXSYS_memcpy(pBitmap->GetBuffer(), pData, pitch * height);
if (bBottomUp) {
uint8_t* temp_buf = FX_Alloc(uint8_t, pitch);
int top = 0, bottom = height - 1;
while (top < bottom) {
FXSYS_memcpy(temp_buf, pBitmap->GetBuffer() + top * pitch, pitch);
FXSYS_memcpy(pBitmap->GetBuffer() + top * pitch,
pBitmap->GetBuffer() + bottom * pitch, pitch);
FXSYS_memcpy(pBitmap->GetBuffer() + bottom * pitch, temp_buf, pitch);
top++;
bottom--;
}
FX_Free(temp_buf);
temp_buf = NULL;
}
if (pbmi->bmiHeader.biBitCount == 1) {
for (int i = 0; i < 2; i++) {
pBitmap->SetPaletteEntry(i, ((FX_DWORD*)pbmi->bmiColors)[i] | 0xff000000);
}
} else if (pbmi->bmiHeader.biBitCount == 8) {
for (int i = 0; i < 256; i++) {
pBitmap->SetPaletteEntry(i, ((FX_DWORD*)pbmi->bmiColors)[i] | 0xff000000);
}
}
return pBitmap;
}
CFX_DIBitmap* CFX_WindowsDIB::LoadFromBuf(BITMAPINFO* pbmi, LPVOID pData) {
return _FX_WindowsDIB_LoadFromBuf(pbmi, pData, FALSE);
}
HBITMAP CFX_WindowsDIB::GetDDBitmap(const CFX_DIBitmap* pBitmap, HDC hDC) {
CFX_ByteString info = GetBitmapInfo(pBitmap);
HBITMAP hBitmap = NULL;
hBitmap = CreateDIBitmap(hDC, (BITMAPINFOHEADER*)info.c_str(), CBM_INIT,
pBitmap->GetBuffer(), (BITMAPINFO*)info.c_str(),
DIB_RGB_COLORS);
return hBitmap;
}
void GetBitmapSize(HBITMAP hBitmap, int& w, int& h) {
BITMAP bmp;
GetObject(hBitmap, sizeof bmp, &bmp);
w = bmp.bmWidth;
h = bmp.bmHeight;
}
CFX_DIBitmap* CFX_WindowsDIB::LoadFromFile(const FX_WCHAR* filename) {
CWin32Platform* pPlatform =
(CWin32Platform*)CFX_GEModule::Get()->GetPlatformData();
if (pPlatform->m_GdiplusExt.IsAvailable()) {
WINDIB_Open_Args_ args;
args.flags = WINDIB_OPEN_PATHNAME;
args.path_name = filename;
return pPlatform->m_GdiplusExt.LoadDIBitmap(args);
}
HBITMAP hBitmap = (HBITMAP)LoadImageW(NULL, (wchar_t*)filename, IMAGE_BITMAP,
0, 0, LR_LOADFROMFILE);
if (!hBitmap) {
return NULL;
}
HDC hDC = CreateCompatibleDC(NULL);
int width, height;
GetBitmapSize(hBitmap, width, height);
CFX_DIBitmap* pDIBitmap = new CFX_DIBitmap;
if (!pDIBitmap->Create(width, height, FXDIB_Rgb)) {
delete pDIBitmap;
DeleteDC(hDC);
return NULL;
}
CFX_ByteString info = GetBitmapInfo(pDIBitmap);
int ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(),
(BITMAPINFO*)info.c_str(), DIB_RGB_COLORS);
if (!ret) {
delete pDIBitmap;
pDIBitmap = NULL;
}
DeleteDC(hDC);
return pDIBitmap;
}
CFX_DIBitmap* CFX_WindowsDIB::LoadDIBitmap(WINDIB_Open_Args_ args) {
CWin32Platform* pPlatform =
(CWin32Platform*)CFX_GEModule::Get()->GetPlatformData();
if (pPlatform->m_GdiplusExt.IsAvailable()) {
return pPlatform->m_GdiplusExt.LoadDIBitmap(args);
}
if (args.flags == WINDIB_OPEN_MEMORY) {
return NULL;
}
HBITMAP hBitmap = (HBITMAP)LoadImageW(NULL, (wchar_t*)args.path_name,
IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
if (!hBitmap) {
return NULL;
}
HDC hDC = CreateCompatibleDC(NULL);
int width, height;
GetBitmapSize(hBitmap, width, height);
CFX_DIBitmap* pDIBitmap = new CFX_DIBitmap;
if (!pDIBitmap->Create(width, height, FXDIB_Rgb)) {
delete pDIBitmap;
DeleteDC(hDC);
return NULL;
}
CFX_ByteString info = GetBitmapInfo(pDIBitmap);
int ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(),
(BITMAPINFO*)info.c_str(), DIB_RGB_COLORS);
if (!ret) {
delete pDIBitmap;
pDIBitmap = NULL;
}
DeleteDC(hDC);
return pDIBitmap;
}
CFX_DIBitmap* CFX_WindowsDIB::LoadFromDDB(HDC hDC,
HBITMAP hBitmap,
FX_DWORD* pPalette,
FX_DWORD palsize) {
FX_BOOL bCreatedDC = !hDC;
if (bCreatedDC) {
hDC = CreateCompatibleDC(NULL);
}
BITMAPINFOHEADER bmih;
FXSYS_memset(&bmih, 0, sizeof bmih);
bmih.biSize = sizeof bmih;
GetDIBits(hDC, hBitmap, 0, 0, NULL, (BITMAPINFO*)&bmih, DIB_RGB_COLORS);
int width = bmih.biWidth;
int height = abs(bmih.biHeight);
bmih.biHeight = -height;
bmih.biCompression = BI_RGB;
CFX_DIBitmap* pDIBitmap = new CFX_DIBitmap;
int ret = 0;
if (bmih.biBitCount == 1 || bmih.biBitCount == 8) {
int size = sizeof(BITMAPINFOHEADER) + 8;
if (bmih.biBitCount == 8) {
size += sizeof(FX_DWORD) * 254;
}
BITMAPINFO* pbmih = (BITMAPINFO*)FX_Alloc(uint8_t, size);
pbmih->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
pbmih->bmiHeader.biBitCount = bmih.biBitCount;
pbmih->bmiHeader.biCompression = BI_RGB;
pbmih->bmiHeader.biHeight = -height;
pbmih->bmiHeader.biPlanes = 1;
pbmih->bmiHeader.biWidth = bmih.biWidth;
if (!pDIBitmap->Create(bmih.biWidth, height, bmih.biBitCount == 1
? FXDIB_1bppRgb
: FXDIB_8bppRgb)) {
delete pDIBitmap;
FX_Free(pbmih);
if (bCreatedDC) {
DeleteDC(hDC);
}
return NULL;
}
ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(),
(BITMAPINFO*)pbmih, DIB_RGB_COLORS);
FX_Free(pbmih);
pbmih = NULL;
pDIBitmap->CopyPalette(pPalette, palsize);
} else {
if (bmih.biBitCount <= 24) {
bmih.biBitCount = 24;
} else {
bmih.biBitCount = 32;
}
if (!pDIBitmap->Create(bmih.biWidth, height,
bmih.biBitCount == 24 ? FXDIB_Rgb : FXDIB_Rgb32)) {
delete pDIBitmap;
if (bCreatedDC) {
DeleteDC(hDC);
}
return NULL;
}
ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(),
(BITMAPINFO*)&bmih, DIB_RGB_COLORS);
if (ret != 0 && bmih.biBitCount == 32) {
int pitch = pDIBitmap->GetPitch();
for (int row = 0; row < height; row++) {
uint8_t* dest_scan = (uint8_t*)(pDIBitmap->GetBuffer() + row * pitch);
for (int col = 0; col < width; col++) {
dest_scan[3] = 255;
dest_scan += 4;
}
}
}
}
if (ret == 0) {
delete pDIBitmap;
pDIBitmap = NULL;
}
if (bCreatedDC) {
DeleteDC(hDC);
}
return pDIBitmap;
}
CFX_WindowsDIB::CFX_WindowsDIB(HDC hDC, int width, int height) {
Create(width, height, FXDIB_Rgb, (uint8_t*)1);
BITMAPINFOHEADER bmih;
FXSYS_memset(&bmih, 0, sizeof bmih);
bmih.biSize = sizeof bmih;
bmih.biBitCount = 24;
bmih.biHeight = -height;
bmih.biPlanes = 1;
bmih.biWidth = width;
m_hBitmap = CreateDIBSection(hDC, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
(LPVOID*)&m_pBuffer, NULL, 0);
m_hMemDC = CreateCompatibleDC(hDC);
m_hOldBitmap = (HBITMAP)SelectObject(m_hMemDC, m_hBitmap);
}
CFX_WindowsDIB::~CFX_WindowsDIB() {
SelectObject(m_hMemDC, m_hOldBitmap);
DeleteDC(m_hMemDC);
DeleteObject(m_hBitmap);
}
void CFX_WindowsDIB::LoadFromDevice(HDC hDC, int left, int top) {
::BitBlt(m_hMemDC, 0, 0, m_Width, m_Height, hDC, left, top, SRCCOPY);
}
void CFX_WindowsDIB::SetToDevice(HDC hDC, int left, int top) {
::BitBlt(hDC, left, top, m_Width, m_Height, m_hMemDC, 0, 0, SRCCOPY);
}
#endif
|
