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SceneGraphAnalyzer: Use smarter units for byte sizes in write()

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Values above 10 MiB are displayed in MiB and values above 4 GiB are
displayed in GiB.

Closes #881
This commit is contained in:
Mitchell Stokes 2020-03-15 11:09:53 -07:00 committed by rdb
parent a01711148b
commit 46dc9444d3
1 changed files with 21 additions and 5 deletions
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26
panda/src/pgraphnodes/sceneGraphAnalyzer.cxx
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@ -32,6 +32,22 @@
#include "pta_ushort.h"
#include "geomVertexReader.h"
static std::string smart_mem_string(size_t bytes) {
std::ostringstream out;
float fbytes = static_cast<float>(bytes);
if (bytes > 4294967296) { // 4 GiB
out << std::setprecision(3) << fbytes / 1024.0 / 1024.0 / 1024.0 << " GiB";
}
else if (bytes > 10485760) { // 10 MiB
out << std::setprecision(3) << fbytes / 1024.0 / 1024.0 << " MiB";
}
else {
out << std::setprecision(3) << fbytes / 1024.0 << " KiB";
}
return out.str();
}
/**
*
*/
@ -153,12 +169,12 @@ write(std::ostream &out, int indent_level) const {
}
indent(out, indent_level)
<< "GeomVertexData arrays occupy " << (_vertex_data_size + 1023) / 1024
<< "K memory.\n";
<< "GeomVertexData arrays occupy " << smart_mem_string(_vertex_data_size)
<< " memory.\n";
indent(out, indent_level)
<< "GeomPrimitive arrays occupy " << (_prim_data_size + 1023) / 1024
<< "K memory.\n";
<< "GeomPrimitive arrays occupy " << smart_mem_string(_prim_data_size)
<< " memory.\n";
int unreferenced_vertices = 0;
VDatas::const_iterator vdi;
@ -257,7 +273,7 @@ write(std::ostream &out, int indent_level) const {
indent(out, indent_level)
<< _textures.size() << " textures, estimated minimum "
<< (_texture_bytes + 1023) / 1024 << "K texture memory required.\n";
<< smart_mem_string(_texture_bytes) << " texture memory required.\n";
}
/**