C++ Hash::getSlot方法代码示例

void FW::printMemStats(void)
{
#if FW_MEM_DEBUG
    // Create snapshot of the alloc list.

    s_lock.enter();
    AllocHeader* first = NULL;
    for (AllocHeader* src = s_memAllocs.next; src != &s_memAllocs; src = src->next)
    {
        AllocHeader* alloc = (AllocHeader*)::malloc(sizeof(AllocHeader));
        *alloc = *src;
        alloc->next = first;
        first = alloc;
    }
    s_lock.leave();

    // Calculate total size per owner.

    Hash<String, S64> owners;
    for (AllocHeader* alloc = first; alloc;)
    {
        if (!owners.contains(alloc->ownerID))
            owners.add(alloc->ownerID, 0);
        owners[alloc->ownerID] += alloc->size;

        AllocHeader* next = alloc->next;
        ::free(alloc);
        alloc = next;
    }

    // Print.

    printf("\n");
    printf("%-32s%.2f\n", "Memory usage / megs", (F32)s_memoryUsed * exp2(-20));
    for (int slot = owners.firstSlot(); slot != -1; slot = owners.nextSlot(slot))
    {
        const HashEntry<String, S64>& entry = owners.getSlot(slot);
        printf("  %-30s%-12.2f%.0f%%\n",
            entry.key.getPtr(),
            (F32)entry.value * exp2(-20),
            (F32)entry.value / (F32)s_memoryUsed * 100.0f);
    }
    printf("\n");
#endif
}

//.........这里部分代码省略.........
            stream.writef("f %d/%d/%d %d/%d/%d %d/%d/%d\n",
                v.x, v.x, v.x,
                v.y, v.y, v.y,
                v.z, v.z, v.z);
        }
    }

    // No base name => do not write materials.

    if (!baseName.getLength())
        return;

    // Hash textures and determine file names.

    Hash<const Image*, String> texImageHash;
    Set<String> texNameSet;

    for (int i = 0; i < pnt.numSubmeshes(); i++)
    {
        const MeshBase::Material& mat = pnt.material(i);
        for (int j = 0; j < MeshBase::TextureType_Max; j++)
        {
            const Texture& tex = mat.textures[j];
            if (!tex.exists() || texImageHash.contains(tex.getImage()))
                continue;

            // Extract name from ID.

            String name = tex.getID().getFileName();
            int idx = name.indexOf('.');
            if (idx != -1)
                name = name.substring(0, idx);

            // No name => generate one.

            if (!name.getLength())
                name = sprintf("tex%d", texImageHash.getSize());

            // Ensure that the name is unique.

            String oldName = name;
            for (int k = 0; texNameSet.contains(name); k++)
                name = sprintf("%s_%d", oldName.getPtr(), k);

            // Append format postfix.

            name += ".png";

            // Record.

            texImageHash.add(tex.getImage(), name);
            texNameSet.add(name);
        }
    }

    // Write MTL file.

    File mtlFile(dirName + '/' + baseName +  ".mtl", File::Create);
    BufferedOutputStream mtlOut(mtlFile);
    for (int i = 0; i < pnt.numSubmeshes(); i++)
    {
        if (i)
            mtlOut.writef("\n");

        const MeshBase::Material& mat = pnt.material(i);
        mtlOut.writef("newmtl %d\n", i);
        mtlOut.writef("Ka 0 0 0\n");
        mtlOut.writef("Kd %g %g %g\n", mat.diffuse.x, mat.diffuse.y, mat.diffuse.z);
        mtlOut.writef("d %g\n", mat.diffuse.w);
        mtlOut.writef("Ks %g %g %g\n", mat.specular.x, mat.specular.y, mat.specular.z);
        mtlOut.writef("Ns %g\n", mat.glossiness);

        if (texImageHash.contains(mat.textures[MeshBase::TextureType_Diffuse].getImage()))
            mtlOut.writef("map_Kd %s\n", texImageHash[mat.textures[MeshBase::TextureType_Diffuse].getImage()].getPtr());

        if (texImageHash.contains(mat.textures[MeshBase::TextureType_Alpha].getImage()))
            mtlOut.writef("map_d %s\n", texImageHash[mat.textures[MeshBase::TextureType_Alpha].getImage()].getPtr());

        if (texImageHash.contains(mat.textures[MeshBase::TextureType_Displacement].getImage()))
            mtlOut.writef("disp -mm %g %g %s\n",
                mat.displacementBias / mat.displacementCoef, mat.displacementCoef,
                texImageHash[mat.textures[MeshBase::TextureType_Displacement].getImage()].getPtr());

        if (texImageHash.contains(mat.textures[MeshBase::TextureType_Normal].getImage()))
            mtlOut.writef("bump %s\n", texImageHash[mat.textures[MeshBase::TextureType_Normal].getImage()].getPtr());

        if (texImageHash.contains(mat.textures[MeshBase::TextureType_Environment].getImage()))
            mtlOut.writef("refl -type sphere %s\n", texImageHash[mat.textures[MeshBase::TextureType_Environment].getImage()].getPtr());
    }
    mtlOut.flush();

    // Write textures.

    for (int i = texImageHash.firstSlot(); i != -1; i = texImageHash.nextSlot(i))
    {
        const Image* texImage = texImageHash.getSlot(i).key;
        const String& texName = texImageHash.getSlot(i).value;
        exportImage(dirName + '/' + texName, texImage);
    }
}