1 /*****************************************************************************/ 2 // Copyright 2008 Adobe Systems Incorporated 3 // All Rights Reserved. 4 // 5 // NOTICE: Adobe permits you to use, modify, and distribute this file in 6 // accordance with the terms of the Adobe license agreement accompanying it. 7 /*****************************************************************************/ 8 9 /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_opcodes.h#2 $ */ 10 /* $DateTime: 2012/08/02 06:09:06 $ */ 11 /* $Change: 841096 $ */ 12 /* $Author: erichan $ */ 13 14 /** \file 15 * Base class and common data structures for opcodes (introduced in DNG 1.3). 16 */ 17 18 /*****************************************************************************/ 19 20 #ifndef __dng_opcodes__ 21 #define __dng_opcodes__ 22 23 /*****************************************************************************/ 24 25 #include "dng_auto_ptr.h" 26 #include "dng_classes.h" 27 #include "dng_rect.h" 28 #include "dng_types.h" 29 30 /*****************************************************************************/ 31 32 /// \brief List of supported opcodes (by ID). 33 34 enum dng_opcode_id 35 { 36 37 // Internal use only opcode. Never written to DNGs. 38 39 dngOpcode_Private = 0, 40 41 // Warp image to correct distortion and lateral chromatic aberration for 42 // rectilinear lenses. 43 44 dngOpcode_WarpRectilinear = 1, 45 46 // Warp image to correction distortion for fisheye lenses (i.e., map the 47 // fisheye projection to a perspective projection). 48 49 dngOpcode_WarpFisheye = 2, 50 51 // Radial vignette correction. 52 53 dngOpcode_FixVignetteRadial = 3, 54 55 // Patch bad Bayer pixels which are marked with a special value in the image. 56 57 dngOpcode_FixBadPixelsConstant = 4, 58 59 // Patch bad Bayer pixels/rectangles at a list of specified coordinates. 60 61 dngOpcode_FixBadPixelsList = 5, 62 63 // Trim image to specified bounds. 64 65 dngOpcode_TrimBounds = 6, 66 67 // Map an area through a 16-bit LUT. 68 69 dngOpcode_MapTable = 7, 70 71 // Map an area using a polynomial function. 72 73 dngOpcode_MapPolynomial = 8, 74 75 // Apply a gain map to an area. 76 77 dngOpcode_GainMap = 9, 78 79 // Apply a per-row delta to an area. 80 81 dngOpcode_DeltaPerRow = 10, 82 83 // Apply a per-column delta to an area. 84 85 dngOpcode_DeltaPerColumn = 11, 86 87 // Apply a per-row scale to an area. 88 89 dngOpcode_ScalePerRow = 12, 90 91 // Apply a per-column scale to an area. 92 93 dngOpcode_ScalePerColumn = 13 94 95 }; 96 97 /*****************************************************************************/ 98 99 /// \brief Virtual base class for opcode. 100 101 class dng_opcode 102 { 103 104 public: 105 106 /// Opcode flags. 107 108 enum 109 { 110 kFlag_None = 0, //!< No flag. 111 kFlag_Optional = 1, //!< This opcode is optional. 112 kFlag_SkipIfPreview = 2 //!< May skip opcode for preview images. 113 }; 114 115 private: 116 117 uint32 fOpcodeID; 118 119 uint32 fMinVersion; 120 121 uint32 fFlags; 122 123 bool fWasReadFromStream; 124 125 uint32 fStage; 126 127 protected: 128 129 dng_opcode (uint32 opcodeID, 130 uint32 minVersion, 131 uint32 flags); 132 133 dng_opcode (uint32 opcodeID, 134 dng_stream &stream, 135 const char *name); 136 137 public: 138 139 virtual ~dng_opcode (); 140 141 /// The ID of this opcode. 142 143 uint32 OpcodeID () const 144 { 145 return fOpcodeID; 146 } 147 148 /// The first DNG version that supports this opcode. 149 150 uint32 MinVersion () const 151 { 152 return fMinVersion; 153 } 154 155 /// The flags for this opcode. 156 157 uint32 Flags () const 158 { 159 return fFlags; 160 } 161 162 /// Is this opcode optional? 163 164 bool Optional () const 165 { 166 return (Flags () & kFlag_Optional) != 0; 167 } 168 169 /// Should the opcode be skipped when rendering preview images? 170 171 bool SkipIfPreview () const 172 { 173 return (Flags () & kFlag_SkipIfPreview) != 0; 174 } 175 176 /// Was this opcode read from a data stream? 177 178 bool WasReadFromStream () const 179 { 180 return fWasReadFromStream; 181 } 182 183 /// Which image processing stage (1, 2, 3) is associated with this 184 /// opcode? 185 186 uint32 Stage () const 187 { 188 return fStage; 189 } 190 191 /// Set the image processing stage (1, 2, 3) for this opcode. Stage 1 is 192 /// the original image data, including masked areas. Stage 2 is 193 /// linearized image data and trimmed to the active area. Stage 3 is 194 /// demosaiced and trimmed to the active area. 195 196 void SetStage (uint32 stage) 197 { 198 fStage = stage; 199 } 200 201 /// Is the opcode a NOP (i.e., does nothing)? An opcode could be a NOP 202 /// for some specific parameters. 203 204 virtual bool IsNOP () const 205 { 206 return false; 207 } 208 209 /// Is this opcode valid for the specified negative? 210 211 virtual bool IsValidForNegative (const dng_negative & /* negative */) const 212 { 213 return true; 214 } 215 216 /// Write opcode to a stream. 217 /// \param stream The stream to which to write the opcode data. 218 219 virtual void PutData (dng_stream &stream) const; 220 221 /// Perform error checking prior to applying this opcode to the 222 /// specified negative. Returns true if this opcode should be applied to 223 /// the negative, false otherwise. 224 225 bool AboutToApply (dng_host &host, 226 dng_negative &negative); 227 228 /// Apply this opcode to the specified image with associated negative. 229 230 virtual void Apply (dng_host &host, 231 dng_negative &negative, 232 AutoPtr<dng_image> &image) = 0; 233 234 }; 235 236 /*****************************************************************************/ 237 238 /// \brief Class to represent unknown opcodes (e.g, opcodes defined in future 239 /// DNG versions). 240 241 class dng_opcode_Unknown: public dng_opcode 242 { 243 244 private: 245 246 AutoPtr<dng_memory_block> fData; 247 248 public: 249 250 dng_opcode_Unknown (dng_host &host, 251 uint32 opcodeID, 252 dng_stream &stream); 253 254 virtual void PutData (dng_stream &stream) const; 255 256 virtual void Apply (dng_host &host, 257 dng_negative &negative, 258 AutoPtr<dng_image> &image); 259 260 }; 261 262 /*****************************************************************************/ 263 264 /// \brief Class to represent a filter opcode, such as a convolution. 265 266 class dng_filter_opcode: public dng_opcode 267 { 268 269 protected: 270 271 dng_filter_opcode (uint32 opcodeID, 272 uint32 minVersion, 273 uint32 flags); 274 275 dng_filter_opcode (uint32 opcodeID, 276 dng_stream &stream, 277 const char *name); 278 279 public: 280 281 /// The pixel data type of this opcode. 282 283 virtual uint32 BufferPixelType (uint32 imagePixelType) 284 { 285 return imagePixelType; 286 } 287 288 /// The adjusted bounds (processing area) of this opcode. It is limited to 289 /// the intersection of the specified image area and the GainMap area. 290 291 virtual dng_rect ModifiedBounds (const dng_rect &imageBounds) 292 { 293 return imageBounds; 294 } 295 296 /// Returns the width and height (in pixels) of the repeating mosaic pattern. 297 298 virtual dng_point SrcRepeat () 299 { 300 return dng_point (1, 1); 301 } 302 303 /// Returns the source pixel area needed to process a destination pixel area 304 /// that lies within the specified bounds. 305 /// \param dstArea The destination pixel area to be computed. 306 /// \param imageBounds The overall image area (dstArea will lie within these 307 /// bounds). 308 /// \retval The source pixel area needed to process the specified dstArea. 309 310 virtual dng_rect SrcArea (const dng_rect &dstArea, 311 const dng_rect & /* imageBounds */) 312 { 313 return dstArea; 314 } 315 316 /// Given a destination tile size, calculate input tile size. Simlar to 317 /// SrcArea, and should seldom be overridden. 318 /// 319 /// \param dstTileSize The destination tile size that is targeted for output. 320 /// 321 /// \param imageBounds The image bounds (the destination tile will 322 /// always lie within these bounds). 323 /// 324 /// \retval The source tile size needed to compute a tile of the destination 325 /// size. 326 327 virtual dng_point SrcTileSize (const dng_point &dstTileSize, 328 const dng_rect &imageBounds) 329 { 330 return SrcArea (dng_rect (dstTileSize), 331 imageBounds).Size (); 332 } 333 334 /// Startup method called before any processing is performed on pixel areas. 335 /// It can be used to allocate (per-thread) memory and setup tasks. 336 /// 337 /// \param negative The negative object to be processed. 338 /// 339 /// \param threadCount The number of threads to be used to perform the 340 /// processing. 341 /// 342 /// \param threadCount Total number of threads that will be used for 343 /// processing. Less than or equal to MaxThreads. 344 /// 345 /// \param tileSize Size of source tiles which will be processed. (Not all 346 /// tiles will be this size due to edge conditions.) 347 /// 348 /// \param imageBounds Total size of image to be processed. 349 /// 350 /// \param imagePlanes Number of planes in the image. Less than or equal to 351 /// kMaxColorPlanes. 352 /// 353 /// \param bufferPixelType Pixel type of image buffer (see dng_tag_types.h). 354 /// 355 /// \param allocator dng_memory_allocator to use for allocating temporary 356 /// buffers, etc. 357 358 virtual void Prepare (dng_negative & /* negative */, 359 uint32 /* threadCount */, 360 const dng_point & /* tileSize */, 361 const dng_rect & /* imageBounds */, 362 uint32 /* imagePlanes */, 363 uint32 /* bufferPixelType */, 364 dng_memory_allocator & /* allocator */) 365 { 366 } 367 368 /// Implements filtering operation from one buffer to another. Source 369 /// and destination pixels are set up in member fields of this class. 370 /// Ideally, no allocation should be done in this routine. 371 /// 372 /// \param negative The negative associated with the pixels to be 373 /// processed. 374 /// 375 /// \param threadIndex The thread on which this routine is being called, 376 /// between 0 and threadCount - 1 for the threadCount passed to Prepare 377 /// method. 378 /// 379 /// \param srcBuffer Input area and source pixels. 380 /// 381 /// \param dstBuffer Destination pixels. 382 /// 383 /// \param dstArea Destination pixel processing area. 384 /// 385 /// \param imageBounds Total image area to be processed; dstArea will 386 /// always lie within these bounds. 387 388 virtual void ProcessArea (dng_negative &negative, 389 uint32 threadIndex, 390 dng_pixel_buffer &srcBuffer, 391 dng_pixel_buffer &dstBuffer, 392 const dng_rect &dstArea, 393 const dng_rect &imageBounds) = 0; 394 395 virtual void Apply (dng_host &host, 396 dng_negative &negative, 397 AutoPtr<dng_image> &image); 398 399 }; 400 401 /*****************************************************************************/ 402 403 /// \brief Class to represent an in-place (i.e., pointwise, per-pixel) opcode, 404 /// such as a global tone curve. 405 406 class dng_inplace_opcode: public dng_opcode 407 { 408 409 protected: 410 411 dng_inplace_opcode (uint32 opcodeID, 412 uint32 minVersion, 413 uint32 flags); 414 415 dng_inplace_opcode (uint32 opcodeID, 416 dng_stream &stream, 417 const char *name); 418 419 public: 420 421 /// The pixel data type of this opcode. 422 423 virtual uint32 BufferPixelType (uint32 imagePixelType) 424 { 425 return imagePixelType; 426 } 427 428 /// The adjusted bounds (processing area) of this opcode. It is limited to 429 /// the intersection of the specified image area and the GainMap area. 430 431 virtual dng_rect ModifiedBounds (const dng_rect &imageBounds) 432 { 433 return imageBounds; 434 } 435 436 /// Startup method called before any processing is performed on pixel areas. 437 /// It can be used to allocate (per-thread) memory and setup tasks. 438 /// 439 /// \param negative The negative object to be processed. 440 /// 441 /// \param threadCount The number of threads to be used to perform the 442 /// processing. 443 /// 444 /// \param threadCount Total number of threads that will be used for 445 /// processing. Less than or equal to MaxThreads. 446 /// 447 /// \param tileSize Size of source tiles which will be processed. (Not all 448 /// tiles will be this size due to edge conditions.) 449 /// 450 /// \param imageBounds Total size of image to be processed. 451 /// 452 /// \param imagePlanes Number of planes in the image. Less than or equal to 453 /// kMaxColorPlanes. 454 /// 455 /// \param bufferPixelType Pixel type of image buffer (see dng_tag_types.h). 456 /// 457 /// \param allocator dng_memory_allocator to use for allocating temporary 458 /// buffers, etc. 459 460 virtual void Prepare (dng_negative & /* negative */, 461 uint32 /* threadCount */, 462 const dng_point & /* tileSize */, 463 const dng_rect & /* imageBounds */, 464 uint32 /* imagePlanes */, 465 uint32 /* bufferPixelType */, 466 dng_memory_allocator & /* allocator */) 467 { 468 } 469 470 /// Implements image processing operation in a single buffer. The source 471 /// pixels are provided as input to the buffer, and this routine 472 /// calculates and writes the destination pixels to the same buffer. 473 /// Ideally, no allocation should be done in this routine. 474 /// 475 /// \param negative The negative associated with the pixels to be 476 /// processed. 477 /// 478 /// \param threadIndex The thread on which this routine is being called, 479 /// between 0 and threadCount - 1 for the threadCount passed to Prepare 480 /// method. 481 /// 482 /// \param srcBuffer Input area and source pixels. 483 /// 484 /// \param dstBuffer Destination pixels. 485 /// 486 /// \param dstArea Destination pixel processing area. 487 /// 488 /// \param imageBounds Total image area to be processed; dstArea will 489 /// always lie within these bounds. 490 491 virtual void ProcessArea (dng_negative &negative, 492 uint32 threadIndex, 493 dng_pixel_buffer &buffer, 494 const dng_rect &dstArea, 495 const dng_rect &imageBounds) = 0; 496 497 virtual void Apply (dng_host &host, 498 dng_negative &negative, 499 AutoPtr<dng_image> &image); 500 501 }; 502 503 /*****************************************************************************/ 504 505 #endif 506 507 /*****************************************************************************/ 508
