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Simon
C.E.O.
Joined: 01 Dec 2004
Posts: 885
Location: Kingston Upon Thames, U.K.
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 Posted: Sun Jan 18, 2009 5:38 pm Post subject: Coding a Dogwaffle Connection in C++ |
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This is not a tutorial for Curvy 3D, but rather a rare look inside Curvy's source code to help application authors link to Dogwaffle.
This example uses VOLE (open source) as a neat OLE wrapper
| Code: |
/* VOLE Header Files */
#include <vole/vole.hpp>
/* STLSoft Header Files */
#include <comstl/util/initialisers.hpp>
#include <comstl/util/variant.hpp>
#include <winstl/error/error_desc.hpp>
// ... other headers for error reporting here ...
void TestOLE()
{
try
{
TRACE("Test OLE\n");
comstl::ole_init coinit;
// Start server ...
vole::object dog = vole::object::create("Dogwaffle.Dogwaffle_Class", CLSCTX_LOCAL_SERVER, vole::coercion_level::valueCoercion);
comstl::variant r = dog.invoke_method<comstl::variant>(L"Dog_GetRBuffer");
comstl::variant g = dog.invoke_method<comstl::variant>(L"Dog_GetGBuffer");
comstl::variant b = dog.invoke_method<comstl::variant>(L"Dog_GetBBuffer");
comstl::variant a = dog.invoke_method<comstl::variant>(L"Dog_GetABuffer");
SAFEARRAY* sa = r.parray;
int w = dog.get_property<int>(L"Dog_BufferHeight");
int h = dog.get_property<int>(L"Dog_BufferWidth");
int x = (*sa).rgsabound[0].cElements;
int y = (*sa).rgsabound[1].cElements;
byte* R = (byte*)((*r.parray).pvData);
byte* G = (byte*)((*g.parray).pvData);
byte* B = (byte*)((*b.parray).pvData);
byte* A = (byte*)((*a.parray).pvData);
int lx = x-1;
int ly = y-1;
ASSERT(w==lx);
ASSERT(h==ly);
for(int j=0;j<ly;++j)
for(int i=0;i<lx;++i)
{
int p = i+j*x;
// Example filter - I normally copy Curvy's image buffers to Dogwaffle here...
R[p] = rand()%32;
G[p] = rand()%32;
B[p] = rand()%32;
A[p] = (i*256)/lx;
}
dog.invoke_method<void>(L"Dog_SetRBuffer",r);
dog.invoke_method<void>(L"Dog_SetGBuffer",g);
dog.invoke_method<void>(L"Dog_SetBBuffer",b);
dog.invoke_method<void>(L"Dog_SetABuffer",a);
dog.invoke_method<void>(L"Dog_Refresh");
}
catch(vole::vole_exception &x)
{
cout << "error: " << x.what() << ": " << winstl::error_desc(x.hr()).c_str() << endl;
}
catch(std::exception &x)
{
cout << "error: " << x.what() << endl;
}
}
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donfelipe
Joined: 18 May 2005
Posts: 7
Location: San Diego, California
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