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Added some comments, corrected existing comments and changed the output capability of the TGATranslator

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2702 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Matthew Wilber
2003-02-14 01:36:09 +00:00
parent ae01fc9b49
commit c8e261ddfa
5 changed files with 116 additions and 36 deletions
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src/add-ons/translators/tgatranslator/StreamBuffer.cpp
+1 -1
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@@ -9,7 +9,7 @@
// read from a BPositionIO object.
//
//
// Copyright (C) 2003 Michael Wilber
// Copyright (c) 2002 OpenBeOS Project
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
src/add-ons/translators/tgatranslator/TGAMain.cpp
-4
View File
@@ -6,10 +6,6 @@
// This translator opens and writes TGA files.
//
//
// This application and all source files used in its construction, except
// where noted, are licensed under the MIT License, and have been written
// and are:
//
// Copyright (c) 2002 OpenBeOS Project
//
// Permission is hereby granted, free of charge, to any person obtaining a
src/add-ons/translators/tgatranslator/TGATranslator.cpp
+111 -27
View File
@@ -228,7 +228,7 @@ TGATranslator::TranslatorVersion() const
//
// Postconditions:
//
// Returns: the list of input formats and the number of input
// Returns: the array of input formats and the number of input
// formats through the out_count parameter
// ---------------------------------------------------------------
const translation_format *
@@ -254,7 +254,7 @@ TGATranslator::InputFormats(int32 *out_count) const
//
// Postconditions:
//
// Returns: the list of output formats and the number of output
// Returns: the array of output formats and the number of output
// formats through the out_count parameter
// ---------------------------------------------------------------
const translation_format *
@@ -368,9 +368,9 @@ identify_bits_header(BPositionIO *inSource, translator_info *outInfo,
// ---------------------------------------------------------------
// identify_tga_header
//
// Determines if the data in inSource is in the MS or OS/2 TGA
// format. If it is, it returns info about the data in inSource
// to outInfo, pfileheader, pmsheader, pfrommsformat and os2skip.
// Determines if the data in inSource is in the TGA format.
// If it is, it returns info about the data in inSource
// to outInfo, pfileheader, pmapspec and pimagespec.
//
// Preconditions:
//
@@ -389,6 +389,13 @@ identify_bits_header(BPositionIO *inSource, translator_info *outInfo,
// copied here after it is read from
// the file.
//
// pmapspec, color map info for the TGA is copied
// here after it is read from the file
//
// pimagespec, Info about the image width/height etc.
// is copied here after it is read from
// the file
//
//
// Postconditions:
//
@@ -653,6 +660,8 @@ TGATranslator::Identify(BPositionIO *inSource,
return identify_tga_header(inSource, outInfo, 4, ch);
}
// Convert width pixels from pbits to TGA format, storing the
// result in ptga
status_t
pix_bits_to_tga(uint8 *pbits, uint8 *ptga, color_space fromspace,
uint16 width, const color_map *pmap, int32 bitsBytesPerPixel)
@@ -858,6 +867,8 @@ pix_bits_to_tga(uint8 *pbits, uint8 *ptga, color_space fromspace,
return bytescopied;
}
// create a TGA RLE packet for pixel and copy the
// packet header and pixel data to ptga
status_t
copy_rle_packet(uint8 *ptga, uint32 pixel, uint8 count,
color_space fromspace, const color_map *pmap,
@@ -873,6 +884,8 @@ copy_rle_packet(uint8 *ptga, uint32 pixel, uint8 count,
ptga, fromspace, 1, pmap, bitsBytesPerPixel) + 1;
}
// create a TGA raw packet for pixel and copy the
// packet header and pixel data to ptga
status_t
copy_raw_packet(uint8 *ptga, uint8 *praw, uint8 count,
color_space fromspace, const color_map *pmap,
@@ -888,6 +901,9 @@ copy_raw_packet(uint8 *ptga, uint8 *praw, uint8 count,
count, pmap, bitsBytesPerPixel) + 1;
}
// convert a row of pixel data from pbits to a
// row of pixel data in the TGA format using
// Run Length Encoding
status_t
pix_bits_to_tgarle(uint8 *pbits, uint8 *ptga, color_space fromspace,
uint16 width, const color_map *pmap, int32 bitsBytesPerPixel)
@@ -1007,7 +1023,7 @@ pix_bits_to_tgarle(uint8 *pbits, uint8 *ptga, color_space fromspace,
// translate_from_bits_to_tgatc
//
// Converts various varieties of the Be Bitmap format ('bits') to
// the TGA True Color format
// the TGA True Color format (RLE or uncompressed)
//
// Preconditions:
//
@@ -1017,6 +1033,12 @@ pix_bits_to_tgarle(uint8 *pbits, uint8 *ptga, color_space fromspace,
//
// fromspace, the format of the data in inSource
//
// imagespec, info about width / height / etc. of
// the image
//
// brle, output using RLE if true, uncompressed
// if false
//
//
// Postconditions:
//
@@ -1118,7 +1140,8 @@ translate_from_bits_to_tgatc(BPositionIO *inSource,
// ---------------------------------------------------------------
// translate_from_bits1_to_tgabw
//
// Converts 1-bit Be Bitmaps ('bits') to the MS 1-bit TGA format
// Converts 1-bit Be Bitmaps ('bits') to the
// black and white (8-bit grayscale) TGA format
//
// Preconditions:
//
@@ -1129,8 +1152,12 @@ translate_from_bits_to_tgatc(BPositionIO *inSource,
// bitsRowBytes, number of bytes in one row of
// bits data
//
// msheader, contains information about the TGA
// dimensions and filesize
// imagespec, info about width / height / etc. of
// the image
//
// brle, output using RLE if true, uncompressed
// if false
//
//
// Postconditions:
//
@@ -1221,13 +1248,18 @@ translate_from_bits1_to_tgabw(BPositionIO *inSource,
// ---------------------------------------------------------------
// write_tga_headers
//
// Writes the MS TGA headers (fileHeader and msheader)
// to outDestination.
// Writes the TGA headers to outDestination.
//
// Preconditions:
//
// Parameters: outDestination, where the headers are written to
//
// fileheader, TGA file header
//
// mapspec, color map information
//
// imagespec, width / height / etc. info
//
//
// Postconditions:
//
@@ -1289,8 +1321,9 @@ write_tga_headers(BPositionIO *outDestination, TGAFileHeader &fileheader,
// ---------------------------------------------------------------
// write_tga_footer
//
// Writes the MS TGA headers (fileHeader and msheader)
// to outDestination.
// Writes the TGA footer. This information is contant in this
// code because this translator does not output the developer
// information section of the TGA format.
//
// Preconditions:
//
@@ -1340,11 +1373,8 @@ write_tga_footer(BPositionIO *outDestination)
// read, pointer to the data already read from
// inSource
//
// bheaderonly, true if only the header should be
// written out
//
// bdataonly, true if only the data should be
// written out
// settings, settings object specifying whether
// RLE will be used, and so on
//
// outType, the type of data to convert to
//
@@ -1601,6 +1631,8 @@ translate_from_bits(BPositionIO *inSource, ssize_t amtread, uint8 *read,
return B_NO_TRANSLATOR;
}
// convert a row of uncompressed, non-color mapped
// TGA pixels from ptga to pbits
status_t
pix_tganm_to_bits(uint8 *pbits, uint8 *ptga,
uint16 width, uint8 depth, uint8 tgaBytesPerPixel,
@@ -1709,8 +1741,8 @@ pix_tganm_to_bits(uint8 *pbits, uint8 *ptga,
// ---------------------------------------------------------------
// translate_from_tganm_to_bits
//
// Translates a non-palette TGA from inSource to the B_RGB32
// or B_RGBA32 bits format.
// Translates a uncompressed, non-palette TGA from inSource
// to the B_RGB32 or B_RGBA32 bits format.
//
// Preconditions:
//
@@ -1718,6 +1750,8 @@ pix_tganm_to_bits(uint8 *pbits, uint8 *ptga,
//
// outDestination, where the bits data will be written to
//
// imagespec, width / height info
//
//
// Postconditions:
//
@@ -1792,6 +1826,27 @@ translate_from_tganm_to_bits(BPositionIO *inSource,
return B_OK;
}
// ---------------------------------------------------------------
// translate_from_tganmrle_to_bits
//
// Convert non color map, RLE TGA to Be bitmap format
// and write results to outDestination
//
// Preconditions:
//
// Parameters: inSource, the TGA data to be translated
//
// outDestination, where the bits data will be written to
//
// imagespec, width / height info
//
//
// Postconditions:
//
// Returns: B_ERROR, if there is an error allocating memory
//
// B_OK, if all went well
// ---------------------------------------------------------------
status_t
translate_from_tganmrle_to_bits(BPositionIO *inSource,
BPositionIO *outDestination, TGAImageSpec &imagespec)
@@ -1898,6 +1953,7 @@ translate_from_tganmrle_to_bits(BPositionIO *inSource,
return result;
}
// convert a row of color mapped pixels to pbits
status_t
pix_tgam_to_bits(uint8 *pbits, uint8 *ptgaindices,
uint16 width, uint8 depth, uint8 *pmap)
@@ -1976,8 +2032,7 @@ pix_tgam_to_bits(uint8 *pbits, uint8 *ptgaindices,
// ---------------------------------------------------------------
// translate_from_tgam_to_bits
//
// Translates a non-palette TGA from inSource to the B_RGB32
// bits format.
// Translates a paletted TGA from inSource to the bits format.
//
// Preconditions:
//
@@ -1985,6 +2040,12 @@ pix_tgam_to_bits(uint8 *pbits, uint8 *ptgaindices,
//
// outDestination, where the bits data will be written to
//
// mapspec, info about the color map (palette)
//
// imagespec, width / height info
//
// pmap, color palette
//
//
// Postconditions:
//
@@ -2058,6 +2119,31 @@ translate_from_tgam_to_bits(BPositionIO *inSource,
return B_OK;
}
// ---------------------------------------------------------------
// translate_from_tgamrle_to_bits
//
// Translates a color mapped or non color mapped RLE TGA from
// inSource to the bits format.
//
// Preconditions:
//
// Parameters: inSource, the TGA data to be translated
//
// outDestination, where the bits data will be written to
//
// mapspec, info about the color map (palette)
//
// imagespec, width / height info
//
// pmap, color palette
//
//
// Postconditions:
//
// Returns: B_ERROR, if there is an error allocating memory
//
// B_OK, if all went well
// ---------------------------------------------------------------
status_t
translate_from_tgamrle_to_bits(BPositionIO *inSource,
BPositionIO *outDestination, TGAColorMapSpec &mapspec,
@@ -2195,11 +2281,8 @@ translate_from_tgamrle_to_bits(BPositionIO *inSource,
// read, pointer to the data already read from
// inSource
//
// bheaderonly, true if only the header should be
// written out
//
// bdataonly, true if only the data should be
// written out
// settings, settings object specifying whether
// RLE will be used, and so on
//
// outType, the type of data to convert to
//
@@ -2418,6 +2501,7 @@ TGATranslator::Translate(BPositionIO *inSource,
outType, outDestination);
}
// returns the current translator settings into ioExtension
status_t
TGATranslator::GetConfigurationMessage(BMessage *ioExtension)
{
src/add-ons/translators/tgatranslator/TGATranslator.h
+3 -3
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@@ -44,11 +44,11 @@
#define TGA_IN_QUALITY 1.0
// high in quality becuase this code supports all TGA features
#define TGA_IN_CAPABILITY 0.6
// high in capability because this code opens basically all TGAs
// high in capability because this code opens most TGAs
#define TGA_OUT_QUALITY 1.0
// high out quality because this code outputs fully standard TGAs
#define TGA_OUT_CAPABILITY 0.5
// medium out capability because RLE compression is not an option
#define TGA_OUT_CAPABILITY 0.7
// high out capability because many TGA features are supported
#define BBT_IN_QUALITY 0.6
// medium in quality because only most common features are supported
src/add-ons/translators/tgatranslator/TGAView.cpp
+1 -1
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@@ -70,7 +70,7 @@ TGAView::TGAView(const BRect &frame, const char *name,
// ---------------------------------------------------------------
// Destructor
//
// Does nothing
// Releases the TGATranslator settings
//
// Preconditions:
//