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-rw-r--r--plugins/AdvaImg/src/FreeImage/PluginRAS.cpp512
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diff --git a/plugins/AdvaImg/src/FreeImage/PluginRAS.cpp b/plugins/AdvaImg/src/FreeImage/PluginRAS.cpp
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--- a/plugins/AdvaImg/src/FreeImage/PluginRAS.cpp
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-// ==========================================================
-// Sun rasterfile Loader
-//
-// Design and implementation by
-// - Hervé Drolon (drolon@infonie.fr)
-//
-// This file is part of FreeImage 3
-//
-// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
-// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
-// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
-// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
-// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
-// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
-// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
-// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
-// THIS DISCLAIMER.
-//
-// Use at your own risk!
-// ==========================================================
-
-#include "FreeImage.h"
-#include "Utilities.h"
-
-// ----------------------------------------------------------
-// Constants + headers
-// ----------------------------------------------------------
-
-#ifdef _WIN32
-#pragma pack(push, 1)
-#else
-#pragma pack(1)
-#endif
-
-typedef struct tagSUNHEADER {
- DWORD magic; // Magic number
- DWORD width; // Image width in pixels
- DWORD height; // Image height in pixels
- DWORD depth; // Depth (1, 8, 24 or 32 bits) of each pixel
- DWORD length; // Image length (in bytes)
- DWORD type; // Format of file (see RT_* below)
- DWORD maptype; // Type of colormap (see RMT_* below)
- DWORD maplength; // Length of colormap (in bytes)
-} SUNHEADER;
-
-#ifdef _WIN32
-#pragma pack(pop)
-#else
-#pragma pack()
-#endif
-
-// ----------------------------------------------------------
-
-// Following the header is the colormap, for maplength bytes (unless maplength is zero),
-// then the image. Each row of the image is rounded to 2 bytes.
-
-#define RAS_MAGIC 0x59A66A95 // Magic number for Sun rasterfiles
-
-// Sun supported type's
-
-#define RT_OLD 0 // Old format (raw image in 68000 byte order)
-#define RT_STANDARD 1 // Raw image in 68000 byte order
-#define RT_BYTE_ENCODED 2 // Run-length encoding of bytes
-#define RT_FORMAT_RGB 3 // XRGB or RGB instead of XBGR or BGR
-#define RT_FORMAT_TIFF 4 // TIFF <-> standard rasterfile
-#define RT_FORMAT_IFF 5 // IFF (TAAC format) <-> standard rasterfile
-
-#define RT_EXPERIMENTAL 0xffff // Reserved for testing
-
-// These are the possible colormap types.
-// if it's in RGB format, the map is made up of three byte arrays
-// (red, green, then blue) that are each 1/3 of the colormap length.
-
-#define RMT_NONE 0 // maplength is expected to be 0
-#define RMT_EQUAL_RGB 1 // red[maplength/3], green[maplength/3], blue[maplength/3]
-#define RMT_RAW 2 // Raw colormap
-#define RESC 128 // Run-length encoding escape character
-
-// ----- NOTES -----
-// Each line of the image is rounded out to a multiple of 16 bits.
-// This corresponds to the rounding convention used by the memory pixrect
-// package (/usr/include/pixrect/memvar.h) of the SunWindows system.
-// The ras_encoding field (always set to 0 by Sun's supported software)
-// was renamed to ras_length in release 2.0. As a result, rasterfiles
-// of type 0 generated by the old software claim to have 0 length; for
-// compatibility, code reading rasterfiles must be prepared to compute the
-// TRUE length from the width, height, and depth fields.
-
-// ==========================================================
-// Internal functions
-// ==========================================================
-
-static void
-ReadData(FreeImageIO *io, fi_handle handle, BYTE *buf, DWORD length, BOOL rle) {
- // Read either Run-Length Encoded or normal image data
-
- static BYTE repchar, remaining= 0;
-
- if (rle) {
- // Run-length encoded read
-
- while(length--) {
- if (remaining) {
- remaining--;
- *(buf++)= repchar;
- } else {
- io->read_proc(&repchar, 1, 1, handle);
-
- if (repchar == RESC) {
- io->read_proc(&remaining, 1, 1, handle);
-
- if (remaining == 0) {
- *(buf++)= RESC;
- } else {
- io->read_proc(&repchar, 1, 1, handle);
-
- *(buf++)= repchar;
- }
- } else {
- *(buf++)= repchar;
- }
- }
- }
- } else {
- // Normal read
-
- io->read_proc(buf, length, 1, handle);
- }
-}
-
-// ==========================================================
-// Plugin Interface
-// ==========================================================
-
-static int s_format_id;
-
-// ==========================================================
-// Plugin Implementation
-// ==========================================================
-
-static const char * DLL_CALLCONV
-Format() {
- return "RAS";
-}
-
-static const char * DLL_CALLCONV
-Description() {
- return "Sun Raster Image";
-}
-
-static const char * DLL_CALLCONV
-Extension() {
- return "ras";
-}
-
-static const char * DLL_CALLCONV
-RegExpr() {
- return NULL;
-}
-
-static const char * DLL_CALLCONV
-MimeType() {
- return "image/x-cmu-raster";
-}
-
-static BOOL DLL_CALLCONV
-Validate(FreeImageIO *io, fi_handle handle) {
- BYTE ras_signature[] = { 0x59, 0xA6, 0x6A, 0x95 };
- BYTE signature[4] = { 0, 0, 0, 0 };
-
- io->read_proc(signature, 1, sizeof(ras_signature), handle);
-
- return (memcmp(ras_signature, signature, sizeof(ras_signature)) == 0);
-}
-
-static BOOL DLL_CALLCONV
-SupportsExportDepth(int depth) {
- return FALSE;
-}
-
-static BOOL DLL_CALLCONV
-SupportsExportType(FREE_IMAGE_TYPE type) {
- return FALSE;
-}
-
-static BOOL DLL_CALLCONV
-SupportsNoPixels() {
- return TRUE;
-}
-
-// ----------------------------------------------------------
-
-static FIBITMAP * DLL_CALLCONV
-Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
- SUNHEADER header; // Sun file header
- WORD linelength; // Length of raster line in bytes
- WORD fill; // Number of fill bytes per raster line
- BOOL rle; // TRUE if RLE file
- BOOL isRGB; // TRUE if file type is RT_FORMAT_RGB
- BYTE fillchar;
-
- FIBITMAP *dib = NULL;
- BYTE *bits; // Pointer to dib data
- WORD x, y;
-
- if(!handle) {
- return NULL;
- }
-
- BOOL header_only = (flags & FIF_LOAD_NOPIXELS) == FIF_LOAD_NOPIXELS;
-
- try {
- // Read SUN raster header
-
- io->read_proc(&header, sizeof(SUNHEADER), 1, handle);
-
-#ifndef FREEIMAGE_BIGENDIAN
- // SUN rasterfiles are big endian only
-
- SwapLong(&header.magic);
- SwapLong(&header.width);
- SwapLong(&header.height);
- SwapLong(&header.depth);
- SwapLong(&header.length);
- SwapLong(&header.type);
- SwapLong(&header.maptype);
- SwapLong(&header.maplength);
-#endif
-
- // Verify SUN identifier
-
- if (header.magic != RAS_MAGIC) {
- throw FI_MSG_ERROR_MAGIC_NUMBER;
- }
-
- // Allocate a new DIB
-
- switch(header.depth) {
- case 1:
- case 8:
- dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth);
- break;
-
- case 24:
- dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
- break;
-
- case 32:
- dib = FreeImage_AllocateHeader(header_only, header.width, header.height, header.depth, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
- break;
- }
-
- if (dib == NULL) {
- throw FI_MSG_ERROR_DIB_MEMORY;
- }
-
- // Check the file format
-
- rle = FALSE;
- isRGB = FALSE;
-
- switch(header.type) {
- case RT_OLD:
- case RT_STANDARD:
- case RT_FORMAT_TIFF: // I don't even know what these format are...
- case RT_FORMAT_IFF: //The TIFF and IFF format types indicate that the raster
- //file was originally converted from either of these file formats.
- //so lets at least try to process them as RT_STANDARD
- break;
-
- case RT_BYTE_ENCODED:
- rle = TRUE;
- break;
-
- case RT_FORMAT_RGB:
- isRGB = TRUE;
- break;
-
- default:
- throw FI_MSG_ERROR_UNSUPPORTED_FORMAT;
- }
-
- // set up the colormap if needed
-
- switch(header.maptype) {
- case RMT_NONE :
- {
- if (header.depth < 24) {
- // Create linear color ramp
-
- RGBQUAD *pal = FreeImage_GetPalette(dib);
-
- int numcolors = 1 << header.depth;
-
- for (int i = 0; i < numcolors; i++) {
- pal[i].rgbRed = (BYTE)((255 * i) / (numcolors - 1));
- pal[i].rgbGreen = (BYTE)((255 * i) / (numcolors - 1));
- pal[i].rgbBlue = (BYTE)((255 * i) / (numcolors - 1));
- }
- }
-
- break;
- }
-
- case RMT_EQUAL_RGB:
- {
- BYTE *r, *g, *b;
-
- // Read SUN raster colormap
-
- int numcolors = 1 << header.depth;
- if((DWORD)(3 * numcolors) > header.maplength) {
- // some RAS may have less colors than the full palette
- numcolors = header.maplength / 3;
- } else {
- throw "Invalid palette";
- }
-
- r = (BYTE*)malloc(3 * numcolors * sizeof(BYTE));
- g = r + numcolors;
- b = g + numcolors;
-
- RGBQUAD *pal = FreeImage_GetPalette(dib);
-
- io->read_proc(r, 3 * numcolors, 1, handle);
-
- for (int i = 0; i < numcolors; i++) {
- pal[i].rgbRed = r[i];
- pal[i].rgbGreen = g[i];
- pal[i].rgbBlue = b[i];
- }
-
- free(r);
- break;
- }
-
- case RMT_RAW:
- {
- BYTE *colormap;
-
- // Read (skip) SUN raster colormap.
-
- colormap = (BYTE *)malloc(header.maplength * sizeof(BYTE));
-
- io->read_proc(colormap, header.maplength, 1, handle);
-
- free(colormap);
- break;
- }
- }
-
- if(header_only) {
- // header only mode
- return dib;
- }
-
- // Calculate the line + pitch
- // Each row is multiple of 16 bits (2 bytes).
-
- if (header.depth == 1) {
- linelength = (WORD)((header.width / 8) + (header.width % 8 ? 1 : 0));
- } else {
- linelength = (WORD)header.width;
- }
-
- fill = (linelength % 2) ? 1 : 0;
-
- unsigned pitch = FreeImage_GetPitch(dib);
-
- // Read the image data
-
- switch(header.depth) {
- case 1:
- case 8:
- {
- bits = FreeImage_GetBits(dib) + (header.height - 1) * pitch;
-
- for (y = 0; y < header.height; y++) {
- ReadData(io, handle, bits, linelength, rle);
-
- bits -= pitch;
-
- if (fill) {
- ReadData(io, handle, &fillchar, fill, rle);
- }
- }
-
- break;
- }
-
- case 24:
- {
- BYTE *buf, *bp;
-
- buf = (BYTE*)malloc(header.width * 3);
-
- for (y = 0; y < header.height; y++) {
- bits = FreeImage_GetBits(dib) + (header.height - 1 - y) * pitch;
-
- ReadData(io, handle, buf, header.width * 3, rle);
-
- bp = buf;
-
- if (isRGB) {
- for (x = 0; x < header.width; x++) {
- bits[FI_RGBA_RED] = *(bp++); // red
- bits[FI_RGBA_GREEN] = *(bp++); // green
- bits[FI_RGBA_BLUE] = *(bp++); // blue
-
- bits += 3;
- }
- } else {
- for (x = 0; x < header.width; x++) {
- bits[FI_RGBA_RED] = *(bp + 2); // red
- bits[FI_RGBA_GREEN] = *(bp + 1);// green
- bits[FI_RGBA_BLUE] = *bp; // blue
-
- bits += 3; bp += 3;
- }
- }
-
- if (fill) {
- ReadData(io, handle, &fillchar, fill, rle);
- }
- }
-
- free(buf);
- break;
- }
-
- case 32:
- {
- BYTE *buf, *bp;
-
- buf = (BYTE*)malloc(header.width * 4);
-
- for (y = 0; y < header.height; y++) {
- bits = FreeImage_GetBits(dib) + (header.height - 1 - y) * pitch;
-
- ReadData(io, handle, buf, header.width * 4, rle);
-
- bp = buf;
-
- if (isRGB) {
- for (x = 0; x < header.width; x++) {
- bits[FI_RGBA_ALPHA] = *(bp++); // alpha
- bits[FI_RGBA_RED] = *(bp++); // red
- bits[FI_RGBA_GREEN] = *(bp++); // green
- bits[FI_RGBA_BLUE] = *(bp++); // blue
-
- bits += 4;
- }
- }
- else {
- for (x = 0; x < header.width; x++) {
- bits[FI_RGBA_RED] = *(bp + 3); // red
- bits[FI_RGBA_GREEN] = *(bp + 2); // green
- bits[FI_RGBA_BLUE] = *(bp + 1); // blue
- bits[FI_RGBA_ALPHA] = *bp; // alpha
-
- bits += 4;
- bp += 4;
- }
- }
-
- if (fill) {
- ReadData(io, handle, &fillchar, fill, rle);
- }
- }
-
- free(buf);
- break;
- }
- }
-
- return dib;
-
- } catch (const char *text) {
- if(dib) {
- FreeImage_Unload(dib);
- }
- FreeImage_OutputMessageProc(s_format_id, text);
- }
-
- return NULL;
-}
-
-// ==========================================================
-// Init
-// ==========================================================
-
-void DLL_CALLCONV
-InitRAS(Plugin *plugin, int format_id) {
- s_format_id = format_id;
-
- plugin->format_proc = Format;
- plugin->description_proc = Description;
- plugin->extension_proc = Extension;
- plugin->regexpr_proc = RegExpr;
- plugin->open_proc = NULL;
- plugin->close_proc = NULL;
- plugin->pagecount_proc = NULL;
- plugin->pagecapability_proc = NULL;
- plugin->load_proc = Load;
- plugin->save_proc = NULL;
- plugin->validate_proc = Validate;
- plugin->mime_proc = MimeType;
- plugin->supports_export_bpp_proc = SupportsExportDepth;
- plugin->supports_export_type_proc = SupportsExportType;
- plugin->supports_icc_profiles_proc = NULL;
- plugin->supports_no_pixels_proc = SupportsNoPixels;
-}
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