diff options
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp')
-rw-r--r-- | libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp | 750 |
1 files changed, 375 insertions, 375 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp b/libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp index 3eb5c3b..8c8ae2e 100644 --- a/libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp +++ b/libraries/irrlicht-1.8/source/Irrlicht/CImageLoaderPSD.cpp | |||
@@ -1,375 +1,375 @@ | |||
1 | // Copyright (C) 2002-2012 Nikolaus Gebhardt | 1 | // Copyright (C) 2002-2012 Nikolaus Gebhardt |
2 | // This file is part of the "Irrlicht Engine". | 2 | // This file is part of the "Irrlicht Engine". |
3 | // For conditions of distribution and use, see copyright notice in irrlicht.h | 3 | // For conditions of distribution and use, see copyright notice in irrlicht.h |
4 | 4 | ||
5 | #include "CImageLoaderPSD.h" | 5 | #include "CImageLoaderPSD.h" |
6 | 6 | ||
7 | #ifdef _IRR_COMPILE_WITH_PSD_LOADER_ | 7 | #ifdef _IRR_COMPILE_WITH_PSD_LOADER_ |
8 | 8 | ||
9 | #include "IReadFile.h" | 9 | #include "IReadFile.h" |
10 | #include "os.h" | 10 | #include "os.h" |
11 | #include "CImage.h" | 11 | #include "CImage.h" |
12 | #include "irrString.h" | 12 | #include "irrString.h" |
13 | 13 | ||
14 | 14 | ||
15 | namespace irr | 15 | namespace irr |
16 | { | 16 | { |
17 | namespace video | 17 | namespace video |
18 | { | 18 | { |
19 | 19 | ||
20 | 20 | ||
21 | //! constructor | 21 | //! constructor |
22 | CImageLoaderPSD::CImageLoaderPSD() | 22 | CImageLoaderPSD::CImageLoaderPSD() |
23 | { | 23 | { |
24 | #ifdef _DEBUG | 24 | #ifdef _DEBUG |
25 | setDebugName("CImageLoaderPSD"); | 25 | setDebugName("CImageLoaderPSD"); |
26 | #endif | 26 | #endif |
27 | } | 27 | } |
28 | 28 | ||
29 | 29 | ||
30 | //! returns true if the file maybe is able to be loaded by this class | 30 | //! returns true if the file maybe is able to be loaded by this class |
31 | //! based on the file extension (e.g. ".tga") | 31 | //! based on the file extension (e.g. ".tga") |
32 | bool CImageLoaderPSD::isALoadableFileExtension(const io::path& filename) const | 32 | bool CImageLoaderPSD::isALoadableFileExtension(const io::path& filename) const |
33 | { | 33 | { |
34 | return core::hasFileExtension ( filename, "psd" ); | 34 | return core::hasFileExtension ( filename, "psd" ); |
35 | } | 35 | } |
36 | 36 | ||
37 | 37 | ||
38 | 38 | ||
39 | //! returns true if the file maybe is able to be loaded by this class | 39 | //! returns true if the file maybe is able to be loaded by this class |
40 | bool CImageLoaderPSD::isALoadableFileFormat(io::IReadFile* file) const | 40 | bool CImageLoaderPSD::isALoadableFileFormat(io::IReadFile* file) const |
41 | { | 41 | { |
42 | if (!file) | 42 | if (!file) |
43 | return false; | 43 | return false; |
44 | 44 | ||
45 | u8 type[3]; | 45 | u8 type[3]; |
46 | file->read(&type, sizeof(u8)*3); | 46 | file->read(&type, sizeof(u8)*3); |
47 | return (type[2]==2); // we currently only handle tgas of type 2. | 47 | return (type[2]==2); // we currently only handle tgas of type 2. |
48 | } | 48 | } |
49 | 49 | ||
50 | 50 | ||
51 | 51 | ||
52 | //! creates a surface from the file | 52 | //! creates a surface from the file |
53 | IImage* CImageLoaderPSD::loadImage(io::IReadFile* file) const | 53 | IImage* CImageLoaderPSD::loadImage(io::IReadFile* file) const |
54 | { | 54 | { |
55 | u32* imageData = 0; | 55 | u32* imageData = 0; |
56 | 56 | ||
57 | PsdHeader header; | 57 | PsdHeader header; |
58 | file->read(&header, sizeof(PsdHeader)); | 58 | file->read(&header, sizeof(PsdHeader)); |
59 | 59 | ||
60 | #ifndef __BIG_ENDIAN__ | 60 | #ifndef __BIG_ENDIAN__ |
61 | header.version = os::Byteswap::byteswap(header.version); | 61 | header.version = os::Byteswap::byteswap(header.version); |
62 | header.channels = os::Byteswap::byteswap(header.channels); | 62 | header.channels = os::Byteswap::byteswap(header.channels); |
63 | header.height = os::Byteswap::byteswap(header.height); | 63 | header.height = os::Byteswap::byteswap(header.height); |
64 | header.width = os::Byteswap::byteswap(header.width); | 64 | header.width = os::Byteswap::byteswap(header.width); |
65 | header.depth = os::Byteswap::byteswap(header.depth); | 65 | header.depth = os::Byteswap::byteswap(header.depth); |
66 | header.mode = os::Byteswap::byteswap(header.mode); | 66 | header.mode = os::Byteswap::byteswap(header.mode); |
67 | #endif | 67 | #endif |
68 | 68 | ||
69 | if (header.signature[0] != '8' || | 69 | if (header.signature[0] != '8' || |
70 | header.signature[1] != 'B' || | 70 | header.signature[1] != 'B' || |
71 | header.signature[2] != 'P' || | 71 | header.signature[2] != 'P' || |
72 | header.signature[3] != 'S') | 72 | header.signature[3] != 'S') |
73 | return 0; | 73 | return 0; |
74 | 74 | ||
75 | if (header.version != 1) | 75 | if (header.version != 1) |
76 | { | 76 | { |
77 | os::Printer::log("Unsupported PSD file version", file->getFileName(), ELL_ERROR); | 77 | os::Printer::log("Unsupported PSD file version", file->getFileName(), ELL_ERROR); |
78 | return 0; | 78 | return 0; |
79 | } | 79 | } |
80 | 80 | ||
81 | if (header.mode != 3 || header.depth != 8) | 81 | if (header.mode != 3 || header.depth != 8) |
82 | { | 82 | { |
83 | os::Printer::log("Unsupported PSD color mode or depth.\n", file->getFileName(), ELL_ERROR); | 83 | os::Printer::log("Unsupported PSD color mode or depth.\n", file->getFileName(), ELL_ERROR); |
84 | return 0; | 84 | return 0; |
85 | } | 85 | } |
86 | 86 | ||
87 | // skip color mode data | 87 | // skip color mode data |
88 | 88 | ||
89 | u32 l; | 89 | u32 l; |
90 | file->read(&l, sizeof(u32)); | 90 | file->read(&l, sizeof(u32)); |
91 | #ifndef __BIG_ENDIAN__ | 91 | #ifndef __BIG_ENDIAN__ |
92 | l = os::Byteswap::byteswap(l); | 92 | l = os::Byteswap::byteswap(l); |
93 | #endif | 93 | #endif |
94 | if (!file->seek(l, true)) | 94 | if (!file->seek(l, true)) |
95 | { | 95 | { |
96 | os::Printer::log("Error seeking file pos to image resources.\n", file->getFileName(), ELL_ERROR); | 96 | os::Printer::log("Error seeking file pos to image resources.\n", file->getFileName(), ELL_ERROR); |
97 | return 0; | 97 | return 0; |
98 | } | 98 | } |
99 | 99 | ||
100 | // skip image resources | 100 | // skip image resources |
101 | 101 | ||
102 | file->read(&l, sizeof(u32)); | 102 | file->read(&l, sizeof(u32)); |
103 | #ifndef __BIG_ENDIAN__ | 103 | #ifndef __BIG_ENDIAN__ |
104 | l = os::Byteswap::byteswap(l); | 104 | l = os::Byteswap::byteswap(l); |
105 | #endif | 105 | #endif |
106 | if (!file->seek(l, true)) | 106 | if (!file->seek(l, true)) |
107 | { | 107 | { |
108 | os::Printer::log("Error seeking file pos to layer and mask.\n", file->getFileName(), ELL_ERROR); | 108 | os::Printer::log("Error seeking file pos to layer and mask.\n", file->getFileName(), ELL_ERROR); |
109 | return 0; | 109 | return 0; |
110 | } | 110 | } |
111 | 111 | ||
112 | // skip layer & mask | 112 | // skip layer & mask |
113 | 113 | ||
114 | file->read(&l, sizeof(u32)); | 114 | file->read(&l, sizeof(u32)); |
115 | #ifndef __BIG_ENDIAN__ | 115 | #ifndef __BIG_ENDIAN__ |
116 | l = os::Byteswap::byteswap(l); | 116 | l = os::Byteswap::byteswap(l); |
117 | #endif | 117 | #endif |
118 | if (!file->seek(l, true)) | 118 | if (!file->seek(l, true)) |
119 | { | 119 | { |
120 | os::Printer::log("Error seeking file pos to image data section.\n", file->getFileName(), ELL_ERROR); | 120 | os::Printer::log("Error seeking file pos to image data section.\n", file->getFileName(), ELL_ERROR); |
121 | return 0; | 121 | return 0; |
122 | } | 122 | } |
123 | 123 | ||
124 | // read image data | 124 | // read image data |
125 | 125 | ||
126 | u16 compressionType; | 126 | u16 compressionType; |
127 | file->read(&compressionType, sizeof(u16)); | 127 | file->read(&compressionType, sizeof(u16)); |
128 | #ifndef __BIG_ENDIAN__ | 128 | #ifndef __BIG_ENDIAN__ |
129 | compressionType = os::Byteswap::byteswap(compressionType); | 129 | compressionType = os::Byteswap::byteswap(compressionType); |
130 | #endif | 130 | #endif |
131 | 131 | ||
132 | if (compressionType != 1 && compressionType != 0) | 132 | if (compressionType != 1 && compressionType != 0) |
133 | { | 133 | { |
134 | os::Printer::log("Unsupported psd compression mode.\n", file->getFileName(), ELL_ERROR); | 134 | os::Printer::log("Unsupported psd compression mode.\n", file->getFileName(), ELL_ERROR); |
135 | return 0; | 135 | return 0; |
136 | } | 136 | } |
137 | 137 | ||
138 | // create image data block | 138 | // create image data block |
139 | 139 | ||
140 | imageData = new u32[header.width * header.height]; | 140 | imageData = new u32[header.width * header.height]; |
141 | 141 | ||
142 | bool res = false; | 142 | bool res = false; |
143 | 143 | ||
144 | if (compressionType == 0) | 144 | if (compressionType == 0) |
145 | res = readRawImageData(file, header, imageData); // RAW image data | 145 | res = readRawImageData(file, header, imageData); // RAW image data |
146 | else | 146 | else |
147 | res = readRLEImageData(file, header, imageData); // RLE compressed data | 147 | res = readRLEImageData(file, header, imageData); // RLE compressed data |
148 | 148 | ||
149 | video::IImage* image = 0; | 149 | video::IImage* image = 0; |
150 | 150 | ||
151 | if (res) | 151 | if (res) |
152 | { | 152 | { |
153 | // create surface | 153 | // create surface |
154 | image = new CImage(ECF_A8R8G8B8, | 154 | image = new CImage(ECF_A8R8G8B8, |
155 | core::dimension2d<u32>(header.width, header.height), imageData); | 155 | core::dimension2d<u32>(header.width, header.height), imageData); |
156 | } | 156 | } |
157 | 157 | ||
158 | if (!image) | 158 | if (!image) |
159 | delete [] imageData; | 159 | delete [] imageData; |
160 | imageData = 0; | 160 | imageData = 0; |
161 | 161 | ||
162 | return image; | 162 | return image; |
163 | } | 163 | } |
164 | 164 | ||
165 | 165 | ||
166 | bool CImageLoaderPSD::readRawImageData(io::IReadFile* file, const PsdHeader& header, u32* imageData) const | 166 | bool CImageLoaderPSD::readRawImageData(io::IReadFile* file, const PsdHeader& header, u32* imageData) const |
167 | { | 167 | { |
168 | u8* tmpData = new u8[header.width * header.height]; | 168 | u8* tmpData = new u8[header.width * header.height]; |
169 | 169 | ||
170 | for (s32 channel=0; channel<header.channels && channel < 3; ++channel) | 170 | for (s32 channel=0; channel<header.channels && channel < 3; ++channel) |
171 | { | 171 | { |
172 | if (!file->read(tmpData, sizeof(c8) * header.width * header.height)) | 172 | if (!file->read(tmpData, sizeof(c8) * header.width * header.height)) |
173 | { | 173 | { |
174 | os::Printer::log("Error reading color channel\n", file->getFileName(), ELL_ERROR); | 174 | os::Printer::log("Error reading color channel\n", file->getFileName(), ELL_ERROR); |
175 | break; | 175 | break; |
176 | } | 176 | } |
177 | 177 | ||
178 | s16 shift = getShiftFromChannel((c8)channel, header); | 178 | s16 shift = getShiftFromChannel((c8)channel, header); |
179 | if (shift != -1) | 179 | if (shift != -1) |
180 | { | 180 | { |
181 | u32 mask = 0xff << shift; | 181 | u32 mask = 0xff << shift; |
182 | 182 | ||
183 | for (u32 x=0; x<header.width; ++x) | 183 | for (u32 x=0; x<header.width; ++x) |
184 | { | 184 | { |
185 | for (u32 y=0; y<header.height; ++y) | 185 | for (u32 y=0; y<header.height; ++y) |
186 | { | 186 | { |
187 | s32 index = x + y*header.width; | 187 | s32 index = x + y*header.width; |
188 | imageData[index] = ~(~imageData[index] | mask); | 188 | imageData[index] = ~(~imageData[index] | mask); |
189 | imageData[index] |= tmpData[index] << shift; | 189 | imageData[index] |= tmpData[index] << shift; |
190 | } | 190 | } |
191 | } | 191 | } |
192 | } | 192 | } |
193 | 193 | ||
194 | } | 194 | } |
195 | 195 | ||
196 | delete [] tmpData; | 196 | delete [] tmpData; |
197 | return true; | 197 | return true; |
198 | } | 198 | } |
199 | 199 | ||
200 | 200 | ||
201 | bool CImageLoaderPSD::readRLEImageData(io::IReadFile* file, const PsdHeader& header, u32* imageData) const | 201 | bool CImageLoaderPSD::readRLEImageData(io::IReadFile* file, const PsdHeader& header, u32* imageData) const |
202 | { | 202 | { |
203 | /* If the compression code is 1, the image data | 203 | /* If the compression code is 1, the image data |
204 | starts with the byte counts for all the scan lines in the channel | 204 | starts with the byte counts for all the scan lines in the channel |
205 | (LayerBottom LayerTop), with each count stored as a two | 205 | (LayerBottom LayerTop), with each count stored as a two |
206 | byte value. The RLE compressed data follows, with each scan line | 206 | byte value. The RLE compressed data follows, with each scan line |
207 | compressed separately. The RLE compression is the same compres-sion | 207 | compressed separately. The RLE compression is the same compres-sion |
208 | algorithm used by the Macintosh ROM routine PackBits, and | 208 | algorithm used by the Macintosh ROM routine PackBits, and |
209 | the TIFF standard. | 209 | the TIFF standard. |
210 | If the Layer's Size, and therefore the data, is odd, a pad byte will | 210 | If the Layer's Size, and therefore the data, is odd, a pad byte will |
211 | be inserted at the end of the row. | 211 | be inserted at the end of the row. |
212 | */ | 212 | */ |
213 | 213 | ||
214 | /* | 214 | /* |
215 | A pseudo code fragment to unpack might look like this: | 215 | A pseudo code fragment to unpack might look like this: |
216 | 216 | ||
217 | Loop until you get the number of unpacked bytes you are expecting: | 217 | Loop until you get the number of unpacked bytes you are expecting: |
218 | Read the next source byte into n. | 218 | Read the next source byte into n. |
219 | If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. | 219 | If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. |
220 | Else if n is between -127 and -1 inclusive, copy the next byte -n+1 | 220 | Else if n is between -127 and -1 inclusive, copy the next byte -n+1 |
221 | times. | 221 | times. |
222 | Else if n is -128, noop. | 222 | Else if n is -128, noop. |
223 | Endloop | 223 | Endloop |
224 | 224 | ||
225 | In the inverse routine, it is best to encode a 2-byte repeat run as a replicate run | 225 | In the inverse routine, it is best to encode a 2-byte repeat run as a replicate run |
226 | except when preceded and followed by a literal run. In that case, it is best to merge | 226 | except when preceded and followed by a literal run. In that case, it is best to merge |
227 | the three runs into one literal run. Always encode 3-byte repeats as replicate runs. | 227 | the three runs into one literal run. Always encode 3-byte repeats as replicate runs. |
228 | That is the essence of the algorithm. Here are some additional rules: | 228 | That is the essence of the algorithm. Here are some additional rules: |
229 | - Pack each row separately. Do not compress across row boundaries. | 229 | - Pack each row separately. Do not compress across row boundaries. |
230 | - The number of uncompressed bytes per row is defined to be (ImageWidth + 7) | 230 | - The number of uncompressed bytes per row is defined to be (ImageWidth + 7) |
231 | / 8. If the uncompressed bitmap is required to have an even number of bytes per | 231 | / 8. If the uncompressed bitmap is required to have an even number of bytes per |
232 | row, decompress into word-aligned buffers. | 232 | row, decompress into word-aligned buffers. |
233 | - If a run is larger than 128 bytes, encode the remainder of the run as one or more | 233 | - If a run is larger than 128 bytes, encode the remainder of the run as one or more |
234 | additional replicate runs. | 234 | additional replicate runs. |
235 | When PackBits data is decompressed, the result should be interpreted as per com-pression | 235 | When PackBits data is decompressed, the result should be interpreted as per com-pression |
236 | type 1 (no compression). | 236 | type 1 (no compression). |
237 | */ | 237 | */ |
238 | 238 | ||
239 | u8* tmpData = new u8[header.width * header.height]; | 239 | u8* tmpData = new u8[header.width * header.height]; |
240 | u16 *rleCount= new u16 [header.height * header.channels]; | 240 | u16 *rleCount= new u16 [header.height * header.channels]; |
241 | 241 | ||
242 | s32 size=0; | 242 | s32 size=0; |
243 | 243 | ||
244 | for (u32 y=0; y<header.height * header.channels; ++y) | 244 | for (u32 y=0; y<header.height * header.channels; ++y) |
245 | { | 245 | { |
246 | if (!file->read(&rleCount[y], sizeof(u16))) | 246 | if (!file->read(&rleCount[y], sizeof(u16))) |
247 | { | 247 | { |
248 | delete [] tmpData; | 248 | delete [] tmpData; |
249 | delete [] rleCount; | 249 | delete [] rleCount; |
250 | os::Printer::log("Error reading rle rows\n", file->getFileName(), ELL_ERROR); | 250 | os::Printer::log("Error reading rle rows\n", file->getFileName(), ELL_ERROR); |
251 | return false; | 251 | return false; |
252 | } | 252 | } |
253 | 253 | ||
254 | #ifndef __BIG_ENDIAN__ | 254 | #ifndef __BIG_ENDIAN__ |
255 | rleCount[y] = os::Byteswap::byteswap(rleCount[y]); | 255 | rleCount[y] = os::Byteswap::byteswap(rleCount[y]); |
256 | #endif | 256 | #endif |
257 | size += rleCount[y]; | 257 | size += rleCount[y]; |
258 | } | 258 | } |
259 | 259 | ||
260 | s8 *buf = new s8[size]; | 260 | s8 *buf = new s8[size]; |
261 | if (!file->read(buf, size)) | 261 | if (!file->read(buf, size)) |
262 | { | 262 | { |
263 | delete [] rleCount; | 263 | delete [] rleCount; |
264 | delete [] buf; | 264 | delete [] buf; |
265 | delete [] tmpData; | 265 | delete [] tmpData; |
266 | os::Printer::log("Error reading rle rows\n", file->getFileName(), ELL_ERROR); | 266 | os::Printer::log("Error reading rle rows\n", file->getFileName(), ELL_ERROR); |
267 | return false; | 267 | return false; |
268 | } | 268 | } |
269 | 269 | ||
270 | u16 *rcount=rleCount; | 270 | u16 *rcount=rleCount; |
271 | 271 | ||
272 | s8 rh; | 272 | s8 rh; |
273 | u16 bytesRead; | 273 | u16 bytesRead; |
274 | u8 *dest; | 274 | u8 *dest; |
275 | s8 *pBuf = buf; | 275 | s8 *pBuf = buf; |
276 | 276 | ||
277 | // decompress packbit rle | 277 | // decompress packbit rle |
278 | 278 | ||
279 | for (s32 channel=0; channel<header.channels; channel++) | 279 | for (s32 channel=0; channel<header.channels; channel++) |
280 | { | 280 | { |
281 | for (u32 y=0; y<header.height; ++y, ++rcount) | 281 | for (u32 y=0; y<header.height; ++y, ++rcount) |
282 | { | 282 | { |
283 | bytesRead=0; | 283 | bytesRead=0; |
284 | dest = &tmpData[y*header.width]; | 284 | dest = &tmpData[y*header.width]; |
285 | 285 | ||
286 | while (bytesRead < *rcount) | 286 | while (bytesRead < *rcount) |
287 | { | 287 | { |
288 | rh = *pBuf++; | 288 | rh = *pBuf++; |
289 | ++bytesRead; | 289 | ++bytesRead; |
290 | 290 | ||
291 | if (rh >= 0) | 291 | if (rh >= 0) |
292 | { | 292 | { |
293 | ++rh; | 293 | ++rh; |
294 | 294 | ||
295 | while (rh--) | 295 | while (rh--) |
296 | { | 296 | { |
297 | *dest = *pBuf++; | 297 | *dest = *pBuf++; |
298 | ++bytesRead; | 298 | ++bytesRead; |
299 | ++dest; | 299 | ++dest; |
300 | } | 300 | } |
301 | } | 301 | } |
302 | else | 302 | else |
303 | if (rh > -128) | 303 | if (rh > -128) |
304 | { | 304 | { |
305 | rh = -rh +1; | 305 | rh = -rh +1; |
306 | 306 | ||
307 | while (rh--) | 307 | while (rh--) |
308 | { | 308 | { |
309 | *dest = *pBuf; | 309 | *dest = *pBuf; |
310 | ++dest; | 310 | ++dest; |
311 | } | 311 | } |
312 | 312 | ||
313 | ++pBuf; | 313 | ++pBuf; |
314 | ++bytesRead; | 314 | ++bytesRead; |
315 | } | 315 | } |
316 | } | 316 | } |
317 | } | 317 | } |
318 | 318 | ||
319 | s16 shift = getShiftFromChannel((c8)channel, header); | 319 | s16 shift = getShiftFromChannel((c8)channel, header); |
320 | 320 | ||
321 | if (shift != -1) | 321 | if (shift != -1) |
322 | { | 322 | { |
323 | u32 mask = 0xff << shift; | 323 | u32 mask = 0xff << shift; |
324 | 324 | ||
325 | for (u32 x=0; x<header.width; ++x) | 325 | for (u32 x=0; x<header.width; ++x) |
326 | for (u32 y=0; y<header.height; ++y) | 326 | for (u32 y=0; y<header.height; ++y) |
327 | { | 327 | { |
328 | s32 index = x + y*header.width; | 328 | s32 index = x + y*header.width; |
329 | imageData[index] = ~(~imageData[index] | mask); | 329 | imageData[index] = ~(~imageData[index] | mask); |
330 | imageData[index] |= tmpData[index] << shift; | 330 | imageData[index] |= tmpData[index] << shift; |
331 | } | 331 | } |
332 | } | 332 | } |
333 | } | 333 | } |
334 | 334 | ||
335 | delete [] rleCount; | 335 | delete [] rleCount; |
336 | delete [] buf; | 336 | delete [] buf; |
337 | delete [] tmpData; | 337 | delete [] tmpData; |
338 | 338 | ||
339 | return true; | 339 | return true; |
340 | } | 340 | } |
341 | 341 | ||
342 | 342 | ||
343 | s16 CImageLoaderPSD::getShiftFromChannel(c8 channelNr, const PsdHeader& header) const | 343 | s16 CImageLoaderPSD::getShiftFromChannel(c8 channelNr, const PsdHeader& header) const |
344 | { | 344 | { |
345 | switch(channelNr) | 345 | switch(channelNr) |
346 | { | 346 | { |
347 | case 0: | 347 | case 0: |
348 | return 16; // red | 348 | return 16; // red |
349 | case 1: | 349 | case 1: |
350 | return 8; // green | 350 | return 8; // green |
351 | case 2: | 351 | case 2: |
352 | return 0; // blue | 352 | return 0; // blue |
353 | case 3: | 353 | case 3: |
354 | return header.channels == 4 ? 24 : -1; // ? | 354 | return header.channels == 4 ? 24 : -1; // ? |
355 | case 4: | 355 | case 4: |
356 | return 24; // alpha | 356 | return 24; // alpha |
357 | default: | 357 | default: |
358 | return -1; | 358 | return -1; |
359 | } | 359 | } |
360 | } | 360 | } |
361 | 361 | ||
362 | 362 | ||
363 | 363 | ||
364 | //! creates a loader which is able to load tgas | 364 | //! creates a loader which is able to load tgas |
365 | IImageLoader* createImageLoaderPSD() | 365 | IImageLoader* createImageLoaderPSD() |
366 | { | 366 | { |
367 | return new CImageLoaderPSD(); | 367 | return new CImageLoaderPSD(); |
368 | } | 368 | } |
369 | 369 | ||
370 | 370 | ||
371 | } // end namespace video | 371 | } // end namespace video |
372 | } // end namespace irr | 372 | } // end namespace irr |
373 | 373 | ||
374 | #endif | 374 | #endif |
375 | 375 | ||