you need in converter from jpeg to pdb. it possible if you learn pdb format. i have utilite for converting any bin file to pdb (max size 50K). but you must have installed framework on your computer.
ZC> Ok thanks ZC> But, How do I create .PDB file? ZC> Because, this code is a decode (in Palm). I need a program or code to ZC> run in PC for transform JPG to PDB file. ZC> How can I do? ZC> Thanks ZC> -----Mensaje original----- ZC> De: [EMAIL PROTECTED] ZC> [mailto:[EMAIL PROTECTED] En nombre de tut.by ZC> Enviado el: Jueves, 02 de Diciembre de 2004 12:07 p.m. ZC> Para: Palm Developer Forum ZC> Asunto: Re: jpg... ZC> #include "prefix.h" ZC> #include "sys_types.h" ZC> #include "jpeglib.h" ZC> #include "jmemsrc.h" ZC> UInt32 JpegDecompressCallback( unsigned char* buf, UInt32 size ); ZC> struct jpeg_decompress_struct gJpegDecompressInfo; ZC> struct jpeg_error_mgr gJpegErrorMgr; ZC> //---------------------------------------------------------------------- ZC> ------- ZC> // Name : Decode ZC> // Parameters : jpeg file ZC> // Return : ZC> // Description : ZC> //---------------------------------------------------------------------- ZC> ------- ZC> BitmapType* CJpegDecoder::Decode( MemHandle JpegH ) ZC> { ZC> JSAMPROW row_pointer[ 1 ]; ZC> UInt8* row; ZC> UInt8* ustrDecompressedRow = ( UInt8* )MemPtrNew( 640 * 3 ); ZC> Int16 intX; ZC> RGBColorType RGBColor; ZC> // Create the error object ZC> gJpegDecompressInfo.err = jpeg_std_error( &gJpegErrorMgr ); ZC> // Create the decompress object ZC> jpeg_CreateDecompress( &gJpegDecompressInfo, JPEG_LIB_VERSION, ZC> ( size_t )sizeof(struct jpeg_decompress_struct ) ZC> ); ZC> // Specify the JPEG source call back ZC> jpeg_mem_src( &gJpegDecompressInfo, JpegDecompressCallback ); ZC> UInt32 dwLength = MemHandleSize( JpegH ); ZC> gJpegDecompressInfo.src->next_input_byte = ( JOCTET* ZC> )gJpegDecompressInfo.mem->alloc_large( (j_common_ptr) ZC> &gJpegDecompressInfo, ZC> JPOOL_IMAGE, dwLength ); ZC> UInt8* arrData = ( UInt8* )MemHandleLock( JpegH ); ZC> memcpy( ( void* )gJpegDecompressInfo.src->next_input_byte, arrData, ZC> dwLength ); ZC> MemHandleUnlock( JpegH ); ZC> gJpegDecompressInfo.src->bytes_in_buffer = dwLength; ZC> // Read the JPEG Header ZC> jpeg_read_header( &gJpegDecompressInfo, true ); ZC> // Thoses settings are ste by default by jdlib_read_header but it ZC> //is nice to see what we can change ZC> gJpegDecompressInfo.out_color_space = JCS_RGB; ZC> gJpegDecompressInfo.dct_method = JDCT_ISLOW; ZC> gJpegDecompressInfo.do_fancy_upsampling = true; ZC> gJpegDecompressInfo.do_block_smoothing = true; ZC> gJpegDecompressInfo.scale_num = 1; ZC> gJpegDecompressInfo.scale_denom = 1; // Permitted values are: 1, 2, 4 ZC> //and 8 for scales of: 1/1, 1/2, ZC> //1/4 and 1/8 ZC> gJpegDecompressInfo.buffered_image = false; ZC> jpeg_start_decompress( &gJpegDecompressInfo ); ZC> Boolean enableColorP = true; ZC> UInt32 widthP = 160; ZC> UInt32 heightP = 160; ZC> UInt32 depthP = 16; ZC> UInt16 error = 0; ZC> BitmapType* retBitmap = BmpCreate( gJpegDecompressInfo.output_width - ZC> 1, ZC> gJpegDecompressInfo.output_height - ZC> 1, ZC> 16, NULL, &error ); ZC> WinHandle wH = WinCreateBitmapWindow( retBitmap, &error ); ZC> WinHandle OldH = WinSetDrawWindow( wH ); ZC> widthP = gJpegDecompressInfo.output_width - 1; ZC> heightP = gJpegDecompressInfo.output_height - 1; ZC> Int16 intY1 = gJpegDecompressInfo.output_scanline ; ZC> while( gJpegDecompressInfo.output_scanline ZC> < gJpegDecompressInfo.output_height ) ZC> { ZC> row_pointer[ 0 ] = ( unsigned char* )ustrDecompressedRow; //rowbuf ZC> // Decompress an output line ZC> jpeg_read_scanlines( &gJpegDecompressInfo, row_pointer, 1 ); ZC> row = ( UInt8* )row_pointer[ 0 ]; ZC> // Display the decompressed line (example only) ZC> Int16 intX1 = 0; ZC> for( intX = 0; intX < gJpegDecompressInfo.output_width; intX++ ) ZC> { ZC> RGBColor.r = row[ intX * 3 ]; ZC> RGBColor.g = row[ intX * 3 + 1 ]; ZC> RGBColor.b = row[ intX * 3 + 2 ]; ZC> WinPushDrawState(); ZC> WinSetForeColorRGB( &RGBColor, NULL ); ZC> WinDrawPixel( intX1++, intY1 ); ZC> WinPopDrawState(); ZC> } ZC> intY1++; ZC> }; ZC> RectangleType rect; ZC> rect.topLeft.x = 0; ZC> rect.topLeft.y = 0; ZC> rect.extent.x = widthP; ZC> rect.extent.y = heightP; ZC> MemPtrFree( ustrDecompressedRow ); ZC> WinDeleteWindow( wH, true ); ZC> WinSetDrawWindow( OldH ); ZC> jpeg_finish_decompress( &gJpegDecompressInfo ); ZC> jpeg_destroy_decompress( &gJpegDecompressInfo ); ZC> return retBitmap; ZC> } ZC> UInt32 JpegDecompressCallback( unsigned char* buf, UInt32 size ) ZC> { ZC> return size; ZC> } ZC> the sources of jpeg decoder places on ZC> Metrowerks\CodeWarrior\(CodeWarrior Examples)\Palm OS\Handspring SDK ZC> Examples\Imaginator\Src ZC> include next files to your project ZC> jutil.c ZC> jcomapi.c ZC> jdapistd.c ZC> jdcoefct.c ZC> jdcolor.c ZC> jdhuff.c ZC> jddctmgr.c ZC> jdinput.c ZC> jdapimin.c ZC> jdmainct.c ZC> jerror.c ZC> jdsample.c ZC> jmemmgr.c ZC> jdmaster.c ZC> jdmerge.c ZC> jdmarker.c ZC> jdphuff.c ZC> jdpostct.c ZC> jdtrans.c ZC> jfdctfst.c ZC> jfdctint.c ZC> jidctflt.c ZC> jidctfst.c ZC> jidctint.c ZC> jidctred.c ZC> jmempalm.c ZC> jmemsrc.c ZC> prefix.h ZC> jconfig.h ZC> jdct.h ZC> jdhuff.h ZC> jppalmPrv.h ZC> jerror.h ZC> jinclude.h ZC> jmemsrc.h ZC> jmemsys.h ZC> jmorecfg.h ZC> jpegint.h ZC> jpeglib.h ZC> jpeglib_old.h ZC> jversion.h ZC>> Hello! ZC>> I try show JPG images in my application. ZC>> I used jpeglib, but I don't understand to how do I make a file ZC> streams ZC>> (JPEG). ZC>> In this page: http://www.nyctergatis.com/jpeglib/ say "Support for ZC> JPEG ZC>> data in memory, in file streams (a way to store data in Palm OS ZC>> databases with an API similar to file systems) and in VFS (the ZC> virtual ZC>> file system used by Palm OS for memory expansion modules) has been ZC> added ZC>> to make the use of the library as easy as possible for Palm OS ZC>> developers." ZC>> How do I make this class file? ZC>> I have a simple .JPG, How do I transform this file in file strams? ZC>> Thanks! ZC> -- ZC> Best regards, ZC> tut.by mailto:[EMAIL PROTECTED] ZC> -- ZC> For information on using the Palm Developer Forums, or to unsubscribe, ZC> please see http://www.palmos.com/dev/support/forums/ -- Best regards, tut.by mailto:[EMAIL PROTECTED] -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
