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Moved the responsibility for finding file to load on to the ReaderWriter plugins,

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instead of osgDB::Registry where it original lay.  This has been done to allow
fileName strings to be encode data rather than just file names, such as one
requires when using PagedLOD along with plugins for doing dynamic tesselation.
This commit is contained in:
Robert Osfield
2003-12-08 11:24:43 +00:00
parent 3e7fadb2ec
commit 83bf813e58
41 changed files with 489 additions and 367 deletions
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209
src/osgPlugins/quicktime/ReaderWriterQT.cpp
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@@ -28,7 +28,7 @@ class ReaderWriterQT : public osgDB::ReaderWriter
virtual bool acceptsExtension(const std::string& extension)
{
// this should be the only image importer required on the Mac
// dont know what else it supports, but these will do
// dont know what else it supports, but these will do
return osgDB::equalCaseInsensitive(extension,"rgb") ||
osgDB::equalCaseInsensitive(extension,"rgba") ||
osgDB::equalCaseInsensitive(extension,"jpg") ||
@@ -43,110 +43,113 @@ class ReaderWriterQT : public osgDB::ReaderWriter
}
virtual ReadResult readImage(const std::string& fileName, const osgDB::ReaderWriter::Options*)
{
std::string ext = osgDB::getFileExtension(fileName);
{
std::string ext = osgDB::getLowerCaseFileExtension(file);
if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;
long origWidth, origHeight,buffWidth,buffHeight,buffDepth,origDepth;
// NOTE - implememntation means that this will always return 32 bits, so it is hard to work out if
// an image was monochrome. So it will waste texture memory unless it gets a monochrome hint.
unsigned char *pixels = LoadBufferFromDarwinPath ( fileName.c_str(), &origWidth,&origHeight,&origDepth,
&buffWidth,&buffHeight,
&buffDepth);
// IMPORTANT -
// origDepth in BYTES, buffDepth in BITS
if (pixels == 0) {
std::cerr << "LoadBufferFromDarwinPath failed " << fileName.c_str() << QTfailureMessage() << std::endl;
return 0;
}
std::string fileName = osgDB::findDataFile( file );
if (fileName.empty()) return ReadResult::FILE_NOT_FOUND;
long origWidth, origHeight,buffWidth,buffHeight,buffDepth,origDepth;
// NOTE - implememntation means that this will always return 32 bits, so it is hard to work out if
// an image was monochrome. So it will waste texture memory unless it gets a monochrome hint.
unsigned int pixelFormat;
switch(origDepth) {
case 1 :
pixelFormat = GL_RGB;
break;
case 2 :
pixelFormat = GL_LUMINANCE_ALPHA;
break;
case 3 :
pixelFormat = GL_RGB;
break;
case 4 :
pixelFormat = GL_RGBA;
break;
default :
std::cerr << "Unknown file type in " << fileName.c_str() << " with " << origDepth << std::endl;
pixelFormat = (GLenum)-1;
return 0;
break;
}
{
unsigned char *srcp=pixels, *dstp=pixels;
unsigned char *pixels = LoadBufferFromDarwinPath ( fileName.c_str(), &origWidth,&origHeight,&origDepth,
&buffWidth,&buffHeight,
&buffDepth);
// IMPORTANT -
// origDepth in BYTES, buffDepth in BITS
if (pixels == 0) {
std::cerr << "LoadBufferFromDarwinPath failed " << fileName.c_str() << QTfailureMessage() << std::endl;
return 0;
}
unsigned int pixelFormat;
switch(origDepth) {
case 1 :
pixelFormat = GL_RGB;
break;
case 2 :
pixelFormat = GL_LUMINANCE_ALPHA;
break;
case 3 :
pixelFormat = GL_RGB;
break;
case 4 :
pixelFormat = GL_RGBA;
break;
default :
std::cerr << "Unknown file type in " << fileName.c_str() << " with " << origDepth << std::endl;
pixelFormat = (GLenum)-1;
return 0;
break;
}
{
unsigned char *srcp=pixels, *dstp=pixels;
int i, j;
int i, j;
// swizzle entire image in-place
for (i=0; i<buffHeight; i++ ) {
unsigned char r, g, b, a;
switch (origDepth) {
/*
since 8-bit tgas will get expanded into colour, have to use RGB code for 8-bit images
case 1 :
for (j=0; j<buffWidth; j++ ) {
dstp[0]=srcp[2];
srcp+=4;
dstp++;
}
break;
*/
case 2 :
for (j=0; j<buffWidth; j++ ) {
dstp[1]=srcp[0];
dstp[0]=srcp[2];
srcp+=4;
dstp+=2;
}
break;
case 1 :
case 3 :
for (j=0; j<buffWidth; j++ ) {
dstp[0]=srcp[1];
dstp[1]=srcp[2];
dstp[2]=srcp[3];
srcp+=4;
dstp+=3;
}
break;
case 4 :
for (j=0; j<buffWidth; j++ ) {
r=srcp[1];
g=srcp[2];
b=srcp[3];
a=srcp[0];
dstp[0]=r;
dstp[1]=g;
dstp[2]=b;
dstp[3]=a;
srcp+=4;
dstp+=4;
}
break;
default :
// std::cerr << "ERROR IN RETURNED PIXEL DEPTH, CANNOT COPE" << std::endl;
return 0;
break;
}
}
}
// swizzle entire image in-place
for (i=0; i<buffHeight; i++ ) {
unsigned char r, g, b, a;
switch (origDepth) {
/*
since 8-bit tgas will get expanded into colour, have to use RGB code for 8-bit images
case 1 :
for (j=0; j<buffWidth; j++ ) {
dstp[0]=srcp[2];
srcp+=4;
dstp++;
}
break;
*/
case 2 :
for (j=0; j<buffWidth; j++ ) {
dstp[1]=srcp[0];
dstp[0]=srcp[2];
srcp+=4;
dstp+=2;
}
break;
case 1 :
case 3 :
for (j=0; j<buffWidth; j++ ) {
dstp[0]=srcp[1];
dstp[1]=srcp[2];
dstp[2]=srcp[3];
srcp+=4;
dstp+=3;
}
break;
case 4 :
for (j=0; j<buffWidth; j++ ) {
r=srcp[1];
g=srcp[2];
b=srcp[3];
a=srcp[0];
dstp[0]=r;
dstp[1]=g;
dstp[2]=b;
dstp[3]=a;
srcp+=4;
dstp+=4;
}
break;
default :
// std::cerr << "ERROR IN RETURNED PIXEL DEPTH, CANNOT COPE" << std::endl;
return 0;
break;
}
}
}
Image* image = new Image();
image->setFileName(fileName.c_str());
@@ -155,8 +158,8 @@ class ReaderWriterQT : public osgDB::ReaderWriter
pixelFormat,
GL_UNSIGNED_BYTE,
pixels,
osg::Image::USE_NEW_DELETE );
osg::Image::USE_NEW_DELETE );
notify(INFO) << "image read ok "<<buffWidth<<" "<<buffHeight<<std::endl;
return image;
}