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From Eric Sokolowsky - pnm (ppm, pgm, pbm) plugin

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This commit is contained in:
Robert Osfield 2003-04-30 15:40:57 +00:00
parent 9468ab4979
commit 86254927b9
8 changed files with 437 additions and 1 deletions
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5
AUTHORS.txt
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@ -134,6 +134,11 @@ Rune Schmidt Jensen <sphere@aub.dk>
Romano José Magacho da Silva <rmagacho@predialnet.com.br>
- pause/resume in osgGA::AnimationPathManipulator
- support for managing deleted vertex programs in osg::VertexProgram.
Eric Sokolowsky <esok@cosimo.gsfc.nasa.gov>
- pbm/pgm/ppm reader.
Indirect Contributors
---------------------

3
Make/makedirdefs
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@ -40,6 +40,7 @@ PLUGIN_DIRS = \
osg\
osgtgz\
pic\
pnm\
rgb\
tga\
tgz\
@ -139,6 +140,8 @@ EXAMPLE_DIRS = \
osgvertexprogram\
osgviewer\
# osgautotransform\
# osgprerendercubemap\
# osgjigsaw\
# comment in you want to compile the cluster demo.

18
VisualStudio/VisualStudio.dsw
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@ -1644,6 +1644,24 @@ Package=<4>
###############################################################################
Project: "osgPlugin pnm"=.\osgPlugins\pnm\pnm.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
Begin Project Dependency
Project_Dep_Name Core osg
End Project Dependency
Begin Project Dependency
Project_Dep_Name Core osgDB
End Project Dependency
}}}
###############################################################################
Project: "osgPlugin dds"=.\osgPlugins\dds\dds.dsp - Package Owner=<4>
Package=<5>

8
VisualStudio/osg/osg.dsp
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@ -113,6 +113,10 @@ SOURCE=..\..\src\osg\Array.cpp
# End Source File
# Begin Source File
SOURCE=..\..\src\osg\AutoTransform.cpp
# End Source File
# Begin Source File
SOURCE=..\..\src\osg\Billboard.cpp
# End Source File
# Begin Source File
@ -477,6 +481,10 @@ SOURCE=..\..\Include\osg\ApplicationUsage
# End Source File
# Begin Source File
SOURCE=..\..\Include\osg\AutoTransform
# End Source File
# Begin Source File
SOURCE=..\..\Include\Osg\Billboard
# End Source File
# Begin Source File

109
VisualStudio/osgPlugins/pnm/pnm.dsp Normal file
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@ -0,0 +1,109 @@
# Microsoft Developer Studio Project File - Name="osgPlugin pnm" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
CFG=osgPlugin pnm - Win32 Release
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
!MESSAGE NMAKE /f "pnm.mak".
!MESSAGE
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "pnm.mak" CFG="osgPlugin pnm - Win32 Release"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "osgPlugin pnm - Win32 Release" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE "osgPlugin pnm - Win32 Debug" (based on "Win32 (x86) Dynamic-Link Library")
!MESSAGE
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""
CPP=cl.exe
MTL=midl.exe
RSC=rc.exe
!IF "$(CFG)" == "osgPlugin pnm - Win32 Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "../../../lib"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /YX /FD /c
# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I "../../../include" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /YX /FD /c
# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
# ADD BASE RSC /l 0x809 /d "NDEBUG"
# ADD RSC /l 0x809 /d "NDEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /machine:I386
# ADD LINK32 /nologo /dll /pdb:none /machine:I386 /nodefaultlib:"LIBC" /out:"../../../bin/osgdb_pnm.dll" /libpath:"../../../lib"
# SUBTRACT LINK32 /nodefaultlib
!ELSEIF "$(CFG)" == "osgPlugin pnm - Win32 Debug"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
# PROP BASE Output_Dir "Debug"
# PROP BASE Intermediate_Dir "Debug"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 1
# PROP Output_Dir "../../../lib"
# PROP Intermediate_Dir "Debug"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /YX /FD /GZ /c
# ADD CPP /nologo /MDd /W3 /Gm /vmg /vd0 /GR /GX /Zi /Od /I "../../../include" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "WIN32" /D "_DEBUG" /YX /FD /GZ /c
# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
# ADD BASE RSC /l 0x809 /d "_DEBUG"
# ADD RSC /l 0x809 /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /debug /machine:I386 /pdbtype:sept
# ADD LINK32 /nologo /dll /debug /machine:I386 /nodefaultlib:"LIBC" /out:"../../../bin/osgdb_pnmd.dll" /pdbtype:sept /libpath:"../../../lib"
# SUBTRACT LINK32 /nodefaultlib
!ENDIF
# Begin Target
# Name "osgPlugin pnm - Win32 Release"
# Name "osgPlugin pnm - Win32 Debug"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
# Begin Source File
SOURCE=..\..\..\src\osgPlugins\pnm\ReaderWriterPNM.cpp
# End Source File
# End Group
# Begin Group "Header Files"
# PROP Default_Filter "h;hpp;hxx;hm;inl"
# End Group
# Begin Group "Resource Files"
# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
# End Group
# End Target
# End Project

7
src/osgDB/Registry.cpp
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@ -99,7 +99,12 @@ Registry::Registry()
// wont't add type1 and type2 until resolve extension collision with Peformer binary and ascii files.
// addFileExtensionAlias("pfb", "freetype"); // type1 binary
// addFileExtensionAlias("pfa", "freetype"); // type2 ascii
// portable bitmap, greyscale and colour/pixmap image formats
addFileExtensionAlias("pbm", "pnm");
addFileExtensionAlias("pgm", "pnm");
addFileExtensionAlias("ppm", "pnm");
}

13
src/osgPlugins/pnm/GNUmakefile Normal file
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@ -0,0 +1,13 @@
TOPDIR = ../../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
ReaderWriterPNM.cpp\
LIBS += $(OSG_LIBS) $(OTHER_LIBS)
TARGET_BASENAME = png
include $(TOPDIR)/Make/cygwin_plugin_def
PLUGIN = $(PLUGIN_PREFIX)$(TARGET_BASENAME).$(PLUGIN_EXT)
include $(TOPDIR)/Make/makerules

275
src/osgPlugins/pnm/ReaderWriterPNM.cpp Normal file
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@ -0,0 +1,275 @@
// PNM Reader -- Written by Eric Sokolowsky
// Reads Ascii and Binary files in the PPM, PGM, and PBM formats.
#include <osg/Image>
#include <osg/Notify>
#include <osgDB/Registry>
#include <osgDB/FileNameUtils>
#include <stdio.h>
using namespace osg;
class ReaderWriterPNM : public osgDB::ReaderWriter
{
public:
virtual const char* className() { return "PNM Image Reader/Writer"; }
virtual bool acceptsExtension(const std::string& extension)
{
return osgDB::equalCaseInsensitive(extension, "pnm") ||
osgDB::equalCaseInsensitive(extension, "ppm") ||
osgDB::equalCaseInsensitive(extension, "pgm") ||
osgDB::equalCaseInsensitive(extension, "pbm");
}
virtual ReadResult readImage(const std::string& fileName, const osgDB::ReaderWriter::Options*)
{
if( !acceptsExtension(osgDB::getFileExtension(fileName) ))
return ReadResult::FILE_NOT_HANDLED;
FILE *fp = NULL;
char line[300];
int ppmtype = 0; /* P1, P2, etc. */
int width = 0;
int height = 0;
int max_value = 0;
bool binary_flag = false;
int shift_value = 0; // if greater than 8 bits
// Open file.
fp = fopen(fileName.c_str(), "rb");
// Read header items.
int row;
for (row = 1; row <= 3; row++)
{
fgets(line, 300, fp);
char *cp = line;
while (*cp && isspace(*cp))
cp++;
if (! *cp || *cp == '#')
{
// Skip comment lines.
row--;
}
else if (row == 1)
{
// Get the image type.
if (line[0] == 'p' || line[0] == 'P')
{
ppmtype = line[1] - '0';
}
}
else if (row == 2)
{
// Get the image size.
width = atoi(line);
char *cp = line + strspn(line, "\t \n\r");
cp += strspn(cp, "0123456789");
cp += strspn(line, "\t \n\r");
height = atoi(cp);
// pbm files don't have row 3
if (ppmtype == 1 || ppmtype == 4)
{
max_value = 1;
break;
}
}
else if (row == 3)
{
// Get the maximum value
max_value = atoi(line);
}
}
// Check for valid values.
if (width <= 0 || height <= 0 || max_value <= 0 || ppmtype < 1 ||
ppmtype > 6)
{
fclose(fp);
return ReadResult::FILE_NOT_HANDLED;
}
// Check for binary file.
if (ppmtype >= 4 && ppmtype <= 6)
binary_flag = true;
// Warn the user if the full image cannot be used.
if (max_value > 255)
{
osg::notify(osg::NOTICE) << "PNM file " << fileName <<
" has channels larger than "
" 8 bits. Color resolution will be lost." << std::endl;
while (max_value > 255)
{
max_value >>= 1;
shift_value++;
}
}
// We always create a RGB image, no matter what type of
// source it was.
unsigned char *data = new unsigned char [width * height * 3];
// For the ascii files
if (!binary_flag)
{
unsigned char *end = data + width * height * 3;
unsigned char *dst = data;
char s_num[300];
int s_num_count;
int value = fgetc(fp);
while (dst < end)
{
if (feof(fp) || ferror(fp))
{
fclose(fp);
delete[] data;
return ReadResult::FILE_NOT_HANDLED;
}
// Read any extra whitespace
//while (isspace(value))
while (!isdigit(value))
{
value = fgetc(fp);
}
// Read any numeric digits
s_num_count = 0;
while (isdigit(value))
{
s_num[s_num_count++] = value;
value = fgetc(fp);
}
// Don't forget to terminate the string!
s_num[s_num_count] = 0;
if (s_num_count == 0)
{
fclose(fp);
delete[] data;
return ReadResult::FILE_NOT_HANDLED;
}
unsigned int data_value = atoi(s_num) >> shift_value;
// Now we have our value. Put it into the array
// in the appropriate place.
if (ppmtype == 1)
{
if (data_value == 1)
data_value = 0;
else
data_value = 255;
*(dst++) = data_value;
*(dst++) = data_value;
*(dst++) = data_value;
}
else if (ppmtype == 2)
{
*(dst++) = data_value;
*(dst++) = data_value;
*(dst++) = data_value;
}
else if (ppmtype == 3)
{
*(dst++) = data_value;
}
}
}
// If we have a binary bitmap
else if (ppmtype == 4)
{
unsigned char *end = data + width * height * 3;
unsigned char *dst = data;
while (dst < end)
{
unsigned char b = (unsigned char) fgetc(fp);
if (feof(fp) || ferror(fp))
{
fclose(fp);
delete[] data;
return ReadResult::FILE_NOT_HANDLED;
}
int i;
for (i = 7; i >= 0 && dst < end; i--)
{
// 1 means black, 0 means white
int data_value = (b & (1<<i)) ? 0 : 255;
*(dst++) = data_value;
*(dst++) = data_value;
*(dst++) = data_value;
}
}
}
// If we have a binary pgm
else if (ppmtype == 5)
{
int result = fread(data, width * height, 1, fp);
if (result != 1)
{
fclose(fp);
delete[] data;
return ReadResult::FILE_NOT_HANDLED;
}
unsigned char *src = data + width * height;
unsigned char *dst = data + width * height * 3;
while (src >= data)
{
*(--dst) = *(--src);
*(--dst) = *src;
*(--dst) = *src;
}
}
// If we have a binary ppm, reading is very easy.
else if (ppmtype == 6)
{
int result = fread(data, width * height * 3, 1, fp);
if (result != 1)
{
fclose(fp);
delete[] data;
return ReadResult::FILE_NOT_HANDLED;
}
}
if (fp)
fclose(fp);
osg::Image* pOsgImage = new osg::Image();
pOsgImage->setFileName(fileName.c_str());
pOsgImage->setImage(width, height, 1,
3,// int internalFormat,
GL_RGB, // unsigned int pixelFormat
GL_UNSIGNED_BYTE,// unsigned int dataType
data,
osg::Image::USE_NEW_DELETE);
pOsgImage->flipVertical();
return pOsgImage;
}
};
// now register with Registry to instantiate the above
// reader/writer.
osgDB::RegisterReaderWriterProxy<ReaderWriterPNM> g_readerWriter_PNM_Proxy;