diff options
Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/PluginXPM.cpp')
-rw-r--r-- | plugins/AdvaImg/src/FreeImage/PluginXPM.cpp | 487 |
1 files changed, 0 insertions, 487 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/PluginXPM.cpp b/plugins/AdvaImg/src/FreeImage/PluginXPM.cpp deleted file mode 100644 index a698321958..0000000000 --- a/plugins/AdvaImg/src/FreeImage/PluginXPM.cpp +++ /dev/null @@ -1,487 +0,0 @@ -// ========================================================== -// XPM Loader and Writer -// -// Design and implementation by -// - Ryan Rubley (ryan@lostreality.org) -// -// 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! -// ========================================================== - -#ifdef _MSC_VER -#pragma warning (disable : 4786) // identifier was truncated to 'number' characters -#endif - -// IMPLEMENTATION NOTES: -// ------------------------ -// Initial design and implementation by -// - Karl-Heinz Bussian (khbussian@moss.de) -// - Hervé Drolon (drolon@infonie.fr) -// Completely rewritten from scratch by Ryan Rubley (ryan@lostreality.org) -// in order to address the following major fixes: -// * Supports any number of chars per pixel (not just 1 or 2) -// * Files with 2 chars per pixel but <= 256colors are loaded as 256 color (not 24bit) -// * Loads much faster, uses much less memory -// * supports #rgb #rrrgggbbb and #rrrrggggbbbb colors (not just #rrggbb) -// * supports symbolic color names -// ========================================================== - -#include "FreeImage.h" -#include "Utilities.h" - -// ========================================================== -// Plugin Interface -// ========================================================== -static int s_format_id; - -// ========================================================== -// Internal Functions -// ========================================================== - -// read in and skip all junk until we find a certain char -static BOOL -FindChar(FreeImageIO *io, fi_handle handle, BYTE look_for) { - BYTE c; - io->read_proc(&c, sizeof(BYTE), 1, handle); - while(c != look_for) { - if( io->read_proc(&c, sizeof(BYTE), 1, handle) != 1 ) - return FALSE; - } - return TRUE; -} - -// find start of string, read data until ending quote found, allocate memory and return a string -static char * -ReadString(FreeImageIO *io, fi_handle handle) { - if( !FindChar(io, handle,'"') ) - return NULL; - BYTE c; - std::string s; - io->read_proc(&c, sizeof(BYTE), 1, handle); - while(c != '"') { - s += c; - if( io->read_proc(&c, sizeof(BYTE), 1, handle) != 1 ) - return NULL; - } - char *cstr = (char *)malloc(s.length()+1); - strcpy(cstr,s.c_str()); - return cstr; -} - -static char * -Base92(unsigned int num) { - static char b92[16]; //enough for more then 64 bits - static char digit[] = " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjklzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|"; - b92[15] = '\0'; - int i = 14; - do { - b92[i--] = digit[num % 92]; - num /= 92; - } while( num && i >= 0 ); - return b92+i+1; -} - -// ========================================================== -// Plugin Implementation -// ========================================================== - -static const char * DLL_CALLCONV -Format() { - return "XPM"; -} - -static const char * DLL_CALLCONV -Description() { - return "X11 Pixmap Format"; -} - -static const char * DLL_CALLCONV -Extension() { - return "xpm"; -} - -static const char * DLL_CALLCONV -RegExpr() { - return "^[ \\t]*/\\* XPM \\*/[ \\t]$"; -} - -static const char * DLL_CALLCONV -MimeType() { - return "image/x-xpixmap"; -} - -static BOOL DLL_CALLCONV -Validate(FreeImageIO *io, fi_handle handle) { - char buffer[256]; - - // checks the first 256 characters for the magic string - int count = io->read_proc(buffer, 1, 256, handle); - if(count <= 9) return FALSE; - for(int i = 0; i < (count - 9); i++) { - if(strncmp(&buffer[i], "/* XPM */", 9) == 0) - return TRUE; - } - return FALSE; -} - -static BOOL DLL_CALLCONV -SupportsExportDepth(int depth) { - return ( - (depth == 8) || - (depth == 24) - ); -} - -static BOOL DLL_CALLCONV -SupportsExportType(FREE_IMAGE_TYPE type) { - return (type == FIT_BITMAP) ? TRUE : FALSE; -} - -static BOOL DLL_CALLCONV -SupportsNoPixels() { - return TRUE; -} - -// ---------------------------------------------------------- - -static FIBITMAP * DLL_CALLCONV -Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) { - char msg[256]; - FIBITMAP *dib = NULL; - - if (!handle) return NULL; - - try { - char *str; - - BOOL header_only = (flags & FIF_LOAD_NOPIXELS) == FIF_LOAD_NOPIXELS; - - //find the starting brace - if( !FindChar(io, handle,'{') ) - throw "Could not find starting brace"; - - //read info string - str = ReadString(io, handle); - if(!str) - throw "Error reading info string"; - - int width, height, colors, cpp; - if( sscanf(str, "%d %d %d %d", &width, &height, &colors, &cpp) != 4 ) { - free(str); - throw "Improperly formed info string"; - } - free(str); - - if (colors > 256) { - dib = FreeImage_AllocateHeader(header_only, width, height, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); - } else { - dib = FreeImage_AllocateHeader(header_only, width, height, 8); - } - - //build a map of color chars to rgb values - std::map<std::string,FILE_RGBA> rawpal; //will store index in Alpha if 8bpp - for(int i = 0; i < colors; i++ ) { - FILE_RGBA rgba; - - str = ReadString(io, handle); - if(!str) - throw "Error reading color strings"; - - std::string chrs(str,cpp); //create a string for the color chars using the first cpp chars - char *keys = str + cpp; //the color keys for these chars start after the first cpp chars - - //translate all the tabs to spaces - char *tmp = keys; - while( strchr(tmp,'\t') ) { - tmp = strchr(tmp,'\t'); - *tmp++ = ' '; - } - - //prefer the color visual - if( strstr(keys," c ") ) { - char *clr = strstr(keys," c ") + 3; - while( *clr == ' ' ) clr++; //find the start of the hex rgb value - if( *clr == '#' ) { - int red = 0, green = 0, blue = 0, n; - clr++; - //end string at first space, if any found - if( strchr(clr,' ') ) - *(strchr(clr,' ')) = '\0'; - //parse hex color, it can be #rgb #rrggbb #rrrgggbbb or #rrrrggggbbbb - switch( strlen(clr) ) { - case 3: n = sscanf(clr,"%01x%01x%01x",&red,&green,&blue); - red |= (red << 4); - green |= (green << 4); - blue |= (blue << 4); - break; - case 6: n = sscanf(clr,"%02x%02x%02x",&red,&green,&blue); - break; - case 9: n = sscanf(clr,"%03x%03x%03x",&red,&green,&blue); - red >>= 4; - green >>= 4; - blue >>= 4; - break; - case 12: n = sscanf(clr,"%04x%04x%04x",&red,&green,&blue); - red >>= 8; - green >>= 8; - blue >>= 8; - break; - default: - n = 0; - break; - } - if( n != 3 ) { - free(str); - throw "Improperly formed hex color value"; - } - rgba.r = (BYTE)red; - rgba.g = (BYTE)green; - rgba.b = (BYTE)blue; - } else if( !strncmp(clr,"None",4) || !strncmp(clr,"none",4) ) { - rgba.r = rgba.g = rgba.b = 0xFF; - } else { - char *tmp = clr; - - //scan forward for each space, if its " x " or " xx " end the string there - //this means its probably some other visual data beyond that point and not - //part of the color name. How many named color end with a 1 or 2 character - //word? Probably none in our list at least. - while( (tmp = strchr(tmp,' ')) != NULL ) { - if( tmp[1] != ' ' ) { - if( (tmp[2] == ' ') || (tmp[2] != ' ' && tmp[3] == ' ') ) { - tmp[0] = '\0'; - break; - } - } - tmp++; - } - - //remove any trailing spaces - tmp = clr+strlen(clr)-1; - while( *tmp == ' ' ) { - *tmp = '\0'; - tmp--; - } - - if (!FreeImage_LookupX11Color(clr, &rgba.r, &rgba.g, &rgba.b)) { - sprintf(msg, "Unknown color name '%s'", str); - free(str); - throw msg; - } - } - } else { - free(str); - throw "Only color visuals are supported"; - } - - //add color to map - rgba.a = (BYTE)((colors > 256) ? 0 : i); - rawpal[chrs] = rgba; - - //build palette if needed - if( colors <= 256 ) { - RGBQUAD *pal = FreeImage_GetPalette(dib); - pal[i].rgbBlue = rgba.b; - pal[i].rgbGreen = rgba.g; - pal[i].rgbRed = rgba.r; - } - - free(str); - } - //done parsing color map - - if(header_only) { - // header only mode - return dib; - } - - //read in pixel data - for(int y = 0; y < height; y++ ) { - BYTE *line = FreeImage_GetScanLine(dib, height - y - 1); - str = ReadString(io, handle); - if(!str) - throw "Error reading pixel strings"; - char *pixel_ptr = str; - - for(int x = 0; x < width; x++ ) { - //locate the chars in the color map - std::string chrs(pixel_ptr,cpp); - FILE_RGBA rgba = rawpal[chrs]; - - if( colors > 256 ) { - line[FI_RGBA_BLUE] = rgba.b; - line[FI_RGBA_GREEN] = rgba.g; - line[FI_RGBA_RED] = rgba.r; - line += 3; - } else { - *line = rgba.a; - line++; - } - - pixel_ptr += cpp; - } - - free(str); - } - //done reading pixel data - - return dib; - } catch(const char *text) { - FreeImage_OutputMessageProc(s_format_id, text); - - if( dib != NULL ) - FreeImage_Unload(dib); - - return NULL; - } -} - -static BOOL DLL_CALLCONV -Save(FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int page, int flags, void *data) { - if ((dib != NULL) && (handle != NULL)) { - char header[] = "/* XPM */\nstatic char *freeimage[] = {\n/* width height num_colors chars_per_pixel */\n\"", - start_colors[] = "\",\n/* colors */\n\"", - start_pixels[] = "\",\n/* pixels */\n\"", - new_line[] = "\",\n\"", - footer[] = "\"\n};\n", - buf[256]; //256 is more then enough to sprintf 4 ints into, or the base-92 chars and #rrggbb line - - if( io->write_proc(header, (unsigned int)strlen(header), 1, handle) != 1 ) - return FALSE; - - int width = FreeImage_GetWidth(dib), height = FreeImage_GetHeight(dib), bpp = FreeImage_GetBPP(dib); - RGBQUAD *pal = FreeImage_GetPalette(dib); - int x,y; - - //map base92 chrs to the rgb value to create the palette - std::map<DWORD,FILE_RGB> chrs2color; - //map 8bpp index or 24bpp rgb value to the base92 chrs to create pixel data - typedef union { - DWORD index; - FILE_RGBA rgba; - } DWORDRGBA; - std::map<DWORD,std::string> color2chrs; - - //loop thru entire dib, if new color, inc num_colors and add to both maps - int num_colors = 0; - for(y = 0; y < height; y++ ) { - BYTE *line = FreeImage_GetScanLine(dib, height - y - 1); - for(x = 0; x < width; x++ ) { - FILE_RGB rgb; - DWORDRGBA u; - if( bpp > 8 ) { - u.rgba.b = rgb.b = line[FI_RGBA_BLUE]; - u.rgba.g = rgb.g = line[FI_RGBA_GREEN]; - u.rgba.r = rgb.r = line[FI_RGBA_RED]; - u.rgba.a = 0; - line += 3; - } else { - u.index = *line; - rgb.b = pal[u.index].rgbBlue; - rgb.g = pal[u.index].rgbGreen; - rgb.r = pal[u.index].rgbRed; - line++; - } - if( color2chrs.find(u.index) == color2chrs.end() ) { //new color - std::string chrs(Base92(num_colors)); - color2chrs[u.index] = chrs; - chrs2color[num_colors] = rgb; - num_colors++; - } - } - } - - int cpp = (int)(log((double)num_colors)/log(92.0)) + 1; - - sprintf(buf, "%d %d %d %d", FreeImage_GetWidth(dib), FreeImage_GetHeight(dib), num_colors, cpp ); - if( io->write_proc(buf, (unsigned int)strlen(buf), 1, handle) != 1 ) - return FALSE; - - if( io->write_proc(start_colors, (unsigned int)strlen(start_colors), 1, handle) != 1 ) - return FALSE; - - //write colors, using map of chrs->rgb - for(x = 0; x < num_colors; x++ ) { - sprintf(buf, "%*s c #%02x%02x%02x", cpp, Base92(x), chrs2color[x].r, chrs2color[x].g, chrs2color[x].b ); - if( io->write_proc(buf, (unsigned int)strlen(buf), 1, handle) != 1 ) - return FALSE; - if( x == num_colors - 1 ) { - if( io->write_proc(start_pixels, (unsigned int)strlen(start_pixels), 1, handle) != 1 ) - return FALSE; - } else { - if( io->write_proc(new_line, (unsigned int)strlen(new_line), 1, handle) != 1 ) - return FALSE; - } - } - - - //write pixels, using map of rgb(if 24bpp) or index(if 8bpp)->chrs - for(y = 0; y < height; y++ ) { - BYTE *line = FreeImage_GetScanLine(dib, height - y - 1); - for(x = 0; x < width; x++ ) { - DWORDRGBA u; - if( bpp > 8 ) { - u.rgba.b = line[FI_RGBA_BLUE]; - u.rgba.g = line[FI_RGBA_GREEN]; - u.rgba.r = line[FI_RGBA_RED]; - u.rgba.a = 0; - line += 3; - } else { - u.index = *line; - line++; - } - sprintf(buf, "%*s", cpp, (char *)color2chrs[u.index].c_str()); - if( io->write_proc(buf, cpp, 1, handle) != 1 ) - return FALSE; - } - if( y == height - 1 ) { - if( io->write_proc(footer, (unsigned int)strlen(footer), 1, handle) != 1 ) - return FALSE; - } else { - if( io->write_proc(new_line, (unsigned int)strlen(new_line), 1, handle) != 1 ) - return FALSE; - } - } - - return TRUE; - } else { - return FALSE; - } -} - -// ========================================================== -// Init -// ========================================================== - -void DLL_CALLCONV -InitXPM(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 = Save; - 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; -} - |