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Added ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED

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Code by @medranSolus
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Adam Sawicki 2022-03-14 14:40:22 +01:00
parent fbd11f01ae
commit 2fd8ea323a
12 changed files with 106 additions and 24 deletions
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docs/html/_d3_d12_mem_alloc_8h.html
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@ -212,6 +212,7 @@ Enumerations</h2></td></tr>
<tr class="memitem:ad5ae5a5e42b878f2e18ab5d1fbfb9916"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916">D3D12MA::ALLOCATOR_FLAGS</a> { <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a2fb30967b492c27823a80b5de3aea26f">D3D12MA::ALLOCATOR_FLAG_NONE</a> = 0
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a1b06bb21df006f76a9ed1bc41838bc52">D3D12MA::ALLOCATOR_FLAG_SINGLETHREADED</a> = 0x1
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb">D3D12MA::ALLOCATOR_FLAG_ALWAYS_COMMITTED</a> = 0x2
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335">D3D12MA::ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED</a> = 0x4
}</td></tr>
<tr class="memdesc:ad5ae5a5e42b878f2e18ab5d1fbfb9916"><td class="mdescLeft">&#160;</td><td class="mdescRight">Bit flags to be used with ALLOCATOR_DESC::Flags. <a href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916">More...</a><br /></td></tr>
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@ -101,15 +101,15 @@ Custom CPU memory allocator</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_class" href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a>* allocator;</div>
<div class="line">HRESULT hr = <a class="code hl_function" href="namespace_d3_d12_m_a.html#ab7a1cd1683986d75ce1488b0920f4cb0">D3D12MA::CreateAllocator</a>(&amp;allocatorDesc, &amp;allocator);</div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_allocator_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a></div><div class="ttdoc">Represents main object of this library initialized for particular ID3D12Device.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1039</div></div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_allocator_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a></div><div class="ttdoc">Represents main object of this library initialized for particular ID3D12Device.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1055</div></div>
<div class="ttc" id="anamespace_d3_d12_m_a_html_ab7a1cd1683986d75ce1488b0920f4cb0"><div class="ttname"><a href="namespace_d3_d12_m_a.html#ab7a1cd1683986d75ce1488b0920f4cb0">D3D12MA::CreateAllocator</a></div><div class="ttdeci">D3D12MA_API HRESULT CreateAllocator(const ALLOCATOR_DESC *pDesc, Allocator **ppAllocator)</div><div class="ttdoc">Creates new main D3D12MA::Allocator object and returns it through ppAllocator.</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s.html">D3D12MA::ALLOCATION_CALLBACKS</a></div><div class="ttdoc">Custom callbacks to CPU memory allocation functions.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:187</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s_html_a114e6c4d63d6b020e01f526a975d6849"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s.html#a114e6c4d63d6b020e01f526a975d6849">D3D12MA::ALLOCATION_CALLBACKS::pFree</a></div><div class="ttdeci">FREE_FUNC_PTR pFree</div><div class="ttdoc">Dellocation function.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:191</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s_html_af4d6436455728696fefd503869226436"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_i_o_n___c_a_l_l_b_a_c_k_s.html#af4d6436455728696fefd503869226436">D3D12MA::ALLOCATION_CALLBACKS::pAllocate</a></div><div class="ttdeci">ALLOCATE_FUNC_PTR pAllocate</div><div class="ttdoc">Allocation function.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:189</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html">D3D12MA::ALLOCATOR_DESC</a></div><div class="ttdoc">Parameters of created Allocator object. To be used with CreateAllocator().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1000</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_a773ecc1945eb47c20e06455c3759e4ef"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#a773ecc1945eb47c20e06455c3759e4ef">D3D12MA::ALLOCATOR_DESC::pAllocationCallbacks</a></div><div class="ttdeci">const ALLOCATION_CALLBACKS * pAllocationCallbacks</div><div class="ttdoc">Custom CPU memory allocation callbacks. Optional.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1020</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_abf9a9f87f0ffea52816efd363c5fcd7b"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#abf9a9f87f0ffea52816efd363c5fcd7b">D3D12MA::ALLOCATOR_DESC::pAdapter</a></div><div class="ttdeci">IDXGIAdapter * pAdapter</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1026</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_ada1bf21205065b3aa0284b5a9ee1cb3c"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#ada1bf21205065b3aa0284b5a9ee1cb3c">D3D12MA::ALLOCATOR_DESC::pDevice</a></div><div class="ttdeci">ID3D12Device * pDevice</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1008</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html">D3D12MA::ALLOCATOR_DESC</a></div><div class="ttdoc">Parameters of created Allocator object. To be used with CreateAllocator().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1016</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_a773ecc1945eb47c20e06455c3759e4ef"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#a773ecc1945eb47c20e06455c3759e4ef">D3D12MA::ALLOCATOR_DESC::pAllocationCallbacks</a></div><div class="ttdeci">const ALLOCATION_CALLBACKS * pAllocationCallbacks</div><div class="ttdoc">Custom CPU memory allocation callbacks. Optional.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1036</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_abf9a9f87f0ffea52816efd363c5fcd7b"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#abf9a9f87f0ffea52816efd363c5fcd7b">D3D12MA::ALLOCATOR_DESC::pAdapter</a></div><div class="ttdeci">IDXGIAdapter * pAdapter</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1042</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_ada1bf21205065b3aa0284b5a9ee1cb3c"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#ada1bf21205065b3aa0284b5a9ee1cb3c">D3D12MA::ALLOCATOR_DESC::pDevice</a></div><div class="ttdeci">ID3D12Device * pDevice</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1024</div></div>
</div><!-- fragment --><h1><a class="anchor" id="debug_margins"></a>
Debug margins</h1>
<p >By default, allocations are laid out in memory blocks next to each other if possible (considering required alignment returned by <code>ID3D12Device::GetResourceAllocationInfo</code>).</p>

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@ -192,6 +192,7 @@ Enumerations</h2></td></tr>
<tr class="memitem:ad5ae5a5e42b878f2e18ab5d1fbfb9916"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916">ALLOCATOR_FLAGS</a> { <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a2fb30967b492c27823a80b5de3aea26f">ALLOCATOR_FLAG_NONE</a> = 0
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a1b06bb21df006f76a9ed1bc41838bc52">ALLOCATOR_FLAG_SINGLETHREADED</a> = 0x1
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb">ALLOCATOR_FLAG_ALWAYS_COMMITTED</a> = 0x2
, <a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335">ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED</a> = 0x4
}</td></tr>
<tr class="memdesc:ad5ae5a5e42b878f2e18ab5d1fbfb9916"><td class="mdescLeft">&#160;</td><td class="mdescRight">Bit flags to be used with ALLOCATOR_DESC::Flags. <a href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916">More...</a><br /></td></tr>
<tr class="separator:ad5ae5a5e42b878f2e18ab5d1fbfb9916"><td class="memSeparator" colspan="2">&#160;</td></tr>
@ -347,6 +348,61 @@ Functions</h2></td></tr>
</td></tr>
<tr><td class="fieldname"><a id="ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb" name="ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb"></a>ALLOCATOR_FLAG_ALWAYS_COMMITTED&#160;</td><td class="fielddoc"><p >Every allocation will have its own memory block. To be used for debugging purposes. </p>
</td></tr>
<tr><td class="fieldname"><a id="ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335" name="ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335"></a>ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED&#160;</td><td class="fielddoc"><p >Heaps created for the default pools will be created with flag <code>D3D12_HEAP_FLAG_CREATE_NOT_ZEROED</code>, allowing for their memory to be not zeroed by the system if possible, which can speed up allocation.</p>
<p >Only affects default pools. To use the flag with <a class="el" href="custom_pools.html">Custom memory pools</a>, you need to add it manually:</p>
<div class="fragment"><div class="line">poolDesc.heapFlags |= D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;</div>
</div><!-- fragment --><p >Only avaiable if <code>ID3D12Device8</code> is present. Otherwise, the flag is ignored. </p>
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<a id="ab433989212ee6736bf9d63c5bc565df4" name="ab433989212ee6736bf9d63c5bc565df4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab433989212ee6736bf9d63c5bc565df4">&#9670;&nbsp;</a></span>DEFRAGMENTATION_FLAGS</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="namespace_d3_d12_m_a.html#ab433989212ee6736bf9d63c5bc565df4">D3D12MA::DEFRAGMENTATION_FLAGS</a></td>
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<p>Flags to be passed as <a class="el" href="struct_d3_d12_m_a_1_1_d_e_f_r_a_g_m_e_n_t_a_t_i_o_n___d_e_s_c.html#aac9a357e679a0afa9ab84cd06057630b" title="Flags.">DEFRAGMENTATION_DESC::Flags</a>. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ab433989212ee6736bf9d63c5bc565df4a9d0301a81136ca79e3ba52542c6d2e13" name="ab433989212ee6736bf9d63c5bc565df4a9d0301a81136ca79e3ba52542c6d2e13"></a>DEFRAGMENTATION_FLAG_ALGORITHM_FAST&#160;</td><td class="fielddoc"><p >Use simple but fast algorithm for defragmentation. May not achieve best results but will require least time to compute and least allocations to copy. </p>
</td></tr>
<tr><td class="fieldname"><a id="ab433989212ee6736bf9d63c5bc565df4ace3a84861ed6a1b8066fa9c12c7e89b9" name="ab433989212ee6736bf9d63c5bc565df4ace3a84861ed6a1b8066fa9c12c7e89b9"></a>DEFRAGMENTATION_FLAG_ALGORITHM_BALANCED&#160;</td><td class="fielddoc"><p >Default defragmentation algorithm, applied also when no <code>ALGORITHM</code> flag is specified. Offers a balance between defragmentation quality and the amount of allocations and bytes that need to be moved. </p>
</td></tr>
<tr><td class="fieldname"><a id="ab433989212ee6736bf9d63c5bc565df4af205647f08a5c2cddced83ed66892467" name="ab433989212ee6736bf9d63c5bc565df4af205647f08a5c2cddced83ed66892467"></a>DEFRAGMENTATION_FLAG_ALGORITHM_FULL&#160;</td><td class="fielddoc"><p >Perform full defragmentation of memory. Can result in notably more time to compute and allocations to copy, but will achieve best memory packing. </p>
</td></tr>
<tr><td class="fieldname"><a id="ab433989212ee6736bf9d63c5bc565df4a567e0fe890cc07d8dd6576584e8d9f2d" name="ab433989212ee6736bf9d63c5bc565df4a567e0fe890cc07d8dd6576584e8d9f2d"></a>DEFRAGMENTATION_FLAG_ALGORITHM_MASK&#160;</td><td class="fielddoc"><p >A bit mask to extract only <code>ALGORITHM</code> bits from entire set of flags. </p>
</td></tr>
</table>
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<a id="a82bb787a69699a877b4166789a30e602" name="a82bb787a69699a877b4166789a30e602"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a82bb787a69699a877b4166789a30e602">&#9670;&nbsp;</a></span>DEFRAGMENTATION_MOVE_OPERATION</h2>
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<div class="memproto">
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<tr>
<td class="memname">enum <a class="el" href="namespace_d3_d12_m_a.html#a82bb787a69699a877b4166789a30e602">D3D12MA::DEFRAGMENTATION_MOVE_OPERATION</a></td>
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<p>Operation performed on single defragmentation move. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a82bb787a69699a877b4166789a30e602a29a5c20322e633f6c34ddebd16bc61ac" name="a82bb787a69699a877b4166789a30e602a29a5c20322e633f6c34ddebd16bc61ac"></a>DEFRAGMENTATION_MOVE_OPERATION_COPY&#160;</td><td class="fielddoc"><p >Resource has been recreated at <code>pDstTmpAllocation</code>, data has been copied, old resource has been destroyed. <code>pSrcAllocation</code> will be changed to point to the new place. This is the default value set by <a class="el" href="class_d3_d12_m_a_1_1_defragmentation_context.html#a1606c015d02edc094bb246986159d592" title="Starts single defragmentation pass.">DefragmentationContext::BeginPass()</a>. </p>
</td></tr>
<tr><td class="fieldname"><a id="a82bb787a69699a877b4166789a30e602abefe270a1803998dda3f8e01ec3a4ad6" name="a82bb787a69699a877b4166789a30e602abefe270a1803998dda3f8e01ec3a4ad6"></a>DEFRAGMENTATION_MOVE_OPERATION_IGNORE&#160;</td><td class="fielddoc"><p >Set this value if you cannot move the allocation. New place reserved at <code>pDstTmpAllocation</code> will be freed. <code>pSrcAllocation</code> will remain unchanged. </p>
</td></tr>
<tr><td class="fieldname"><a id="a82bb787a69699a877b4166789a30e602aa2143507d723de458c2ed94e143ac242" name="a82bb787a69699a877b4166789a30e602aa2143507d723de458c2ed94e143ac242"></a>DEFRAGMENTATION_MOVE_OPERATION_DESTROY&#160;</td><td class="fielddoc"><p >Set this value if you decide to abandon the allocation and you destroyed the resource. New place reserved <code>pDstTmpAllocation</code> will be freed, along with <code>pSrcAllocation</code>. </p>
</td></tr>
</table>
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@ -80,6 +80,7 @@ $(function() {
<li>ALLOCATION_FLAG_WITHIN_BUDGET&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#abbad31a7e0b3d09d77f3fb704b77645eab374417c1f22a833ead268a6c21424e6">D3D12MA</a></li>
<li>ALLOCATION_FLAGS&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#abbad31a7e0b3d09d77f3fb704b77645e">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_ALWAYS_COMMITTED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_NONE&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a2fb30967b492c27823a80b5de3aea26f">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_SINGLETHREADED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a1b06bb21df006f76a9ed1bc41838bc52">D3D12MA</a></li>
<li>ALLOCATOR_FLAGS&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916">D3D12MA</a></li>

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@ -78,6 +78,7 @@ $(function() {
<li>ALLOCATION_FLAG_UPPER_ADDRESS&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#abbad31a7e0b3d09d77f3fb704b77645eafb0e2dacce691336e717550a1df72474">D3D12MA</a></li>
<li>ALLOCATION_FLAG_WITHIN_BUDGET&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#abbad31a7e0b3d09d77f3fb704b77645eab374417c1f22a833ead268a6c21424e6">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_ALWAYS_COMMITTED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a068863dc0538ff4ea153b046b31e94fb">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916ae7dc7ab9168148281ebfe1586f554335">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_NONE&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a2fb30967b492c27823a80b5de3aea26f">D3D12MA</a></li>
<li>ALLOCATOR_FLAG_SINGLETHREADED&#160;:&#160;<a class="el" href="namespace_d3_d12_m_a.html#ad5ae5a5e42b878f2e18ab5d1fbfb9916a1b06bb21df006f76a9ed1bc41838bc52">D3D12MA</a></li>
</ul>

8
docs/html/quick_start.html
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@ -90,11 +90,11 @@ Project setup and initialization</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_class" href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a>* allocator;</div>
<div class="line">HRESULT hr = <a class="code hl_function" href="namespace_d3_d12_m_a.html#ab7a1cd1683986d75ce1488b0920f4cb0">D3D12MA::CreateAllocator</a>(&amp;allocatorDesc, &amp;allocator);</div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_allocator_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a></div><div class="ttdoc">Represents main object of this library initialized for particular ID3D12Device.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1039</div></div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_allocator_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_allocator.html">D3D12MA::Allocator</a></div><div class="ttdoc">Represents main object of this library initialized for particular ID3D12Device.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1055</div></div>
<div class="ttc" id="anamespace_d3_d12_m_a_html_ab7a1cd1683986d75ce1488b0920f4cb0"><div class="ttname"><a href="namespace_d3_d12_m_a.html#ab7a1cd1683986d75ce1488b0920f4cb0">D3D12MA::CreateAllocator</a></div><div class="ttdeci">D3D12MA_API HRESULT CreateAllocator(const ALLOCATOR_DESC *pDesc, Allocator **ppAllocator)</div><div class="ttdoc">Creates new main D3D12MA::Allocator object and returns it through ppAllocator.</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html">D3D12MA::ALLOCATOR_DESC</a></div><div class="ttdoc">Parameters of created Allocator object. To be used with CreateAllocator().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1000</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_abf9a9f87f0ffea52816efd363c5fcd7b"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#abf9a9f87f0ffea52816efd363c5fcd7b">D3D12MA::ALLOCATOR_DESC::pAdapter</a></div><div class="ttdeci">IDXGIAdapter * pAdapter</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1026</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_ada1bf21205065b3aa0284b5a9ee1cb3c"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#ada1bf21205065b3aa0284b5a9ee1cb3c">D3D12MA::ALLOCATOR_DESC::pDevice</a></div><div class="ttdeci">ID3D12Device * pDevice</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1008</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html">D3D12MA::ALLOCATOR_DESC</a></div><div class="ttdoc">Parameters of created Allocator object. To be used with CreateAllocator().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1016</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_abf9a9f87f0ffea52816efd363c5fcd7b"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#abf9a9f87f0ffea52816efd363c5fcd7b">D3D12MA::ALLOCATOR_DESC::pAdapter</a></div><div class="ttdeci">IDXGIAdapter * pAdapter</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1042</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c_html_ada1bf21205065b3aa0284b5a9ee1cb3c"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_a_l_l_o_c_a_t_o_r___d_e_s_c.html#ada1bf21205065b3aa0284b5a9ee1cb3c">D3D12MA::ALLOCATOR_DESC::pDevice</a></div><div class="ttdeci">ID3D12Device * pDevice</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1024</div></div>
</div><!-- fragment --><p >(5.) Right before destroying the D3D12 device, destroy the allocator object.</p>
<p >Objects of this library must be destroyed by calling <code>Release</code> method. They are somewhat compatible with COM: they implement <code>IUnknown</code> interface with its virtual methods: <code>AddRef</code>, <code>Release</code>, <code>QueryInterface</code>, and they are reference-counted internally. You can use smart pointers designed for COM with objects of this library - e.g. <code>CComPtr</code> or <code>Microsoft::WRL::ComPtr</code>. The reference counter is thread-safe. <code>QueryInterface</code> method supports only <code>IUnknown</code>, as classes of this library don't define their own GUIDs.</p>
<div class="fragment"><div class="line">allocator-&gt;Release();</div>

13
docs/html/search/all_0.js
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12
docs/html/virtual_allocator.html
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@ -83,10 +83,10 @@ Creating virtual block</h1>
<div class="line"> </div>
<div class="line"><a class="code hl_class" href="class_d3_d12_m_a_1_1_virtual_block.html">D3D12MA::VirtualBlock</a> *block;</div>
<div class="line">HRESULT hr = <a class="code hl_function" href="namespace_d3_d12_m_a.html#ab024647ae85ee63e2fa2c1c4beac6d98">CreateVirtualBlock</a>(&amp;blockDesc, &amp;block);</div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_virtual_block_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_virtual_block.html">D3D12MA::VirtualBlock</a></div><div class="ttdoc">Represents pure allocation algorithm and a data structure with allocations in some memory block,...</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1389</div></div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_virtual_block_html"><div class="ttname"><a href="class_d3_d12_m_a_1_1_virtual_block.html">D3D12MA::VirtualBlock</a></div><div class="ttdoc">Represents pure allocation algorithm and a data structure with allocations in some memory block,...</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1405</div></div>
<div class="ttc" id="anamespace_d3_d12_m_a_html_ab024647ae85ee63e2fa2c1c4beac6d98"><div class="ttname"><a href="namespace_d3_d12_m_a.html#ab024647ae85ee63e2fa2c1c4beac6d98">D3D12MA::CreateVirtualBlock</a></div><div class="ttdeci">D3D12MA_API HRESULT CreateVirtualBlock(const VIRTUAL_BLOCK_DESC *pDesc, VirtualBlock **ppVirtualBlock)</div><div class="ttdoc">Creates new D3D12MA::VirtualBlock object and returns it through ppVirtualBlock.</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c.html">D3D12MA::VIRTUAL_BLOCK_DESC</a></div><div class="ttdoc">Parameters of created D3D12MA::VirtualBlock object to be passed to CreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1295</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c_html_ac56491679f276a5a9956ed99bc4654e4"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c.html#ac56491679f276a5a9956ed99bc4654e4">D3D12MA::VIRTUAL_BLOCK_DESC::Size</a></div><div class="ttdeci">UINT64 Size</div><div class="ttdoc">Total size of the block.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1303</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c.html">D3D12MA::VIRTUAL_BLOCK_DESC</a></div><div class="ttdoc">Parameters of created D3D12MA::VirtualBlock object to be passed to CreateVirtualBlock().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1311</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c_html_ac56491679f276a5a9956ed99bc4654e4"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c.html#ac56491679f276a5a9956ed99bc4654e4">D3D12MA::VIRTUAL_BLOCK_DESC::Size</a></div><div class="ttdeci">UINT64 Size</div><div class="ttdoc">Total size of the block.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1319</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_making_virtual_allocations"></a>
Making virtual allocations</h1>
<p ><a class="el" href="class_d3_d12_m_a_1_1_virtual_block.html" title="Represents pure allocation algorithm and a data structure with allocations in some memory block,...">D3D12MA::VirtualBlock</a> object contains internal data structure that keeps track of free and occupied regions using the same code as the main D3D12 memory allocator. A single allocation is identified by a lightweight structure <a class="el" href="struct_d3_d12_m_a_1_1_virtual_allocation.html" title="Represents single memory allocation done inside VirtualBlock.">D3D12MA::VirtualAllocation</a>. You will also likely want to know the offset at which the allocation was made in the block.</p>
@ -111,8 +111,8 @@ Making virtual allocations</h1>
<div class="line"> <span class="comment">// Allocation failed - no space for it could be found. Handle this error!</span></div>
<div class="line">}</div>
<div class="ttc" id="aclass_d3_d12_m_a_1_1_virtual_block_html_a9281daf76e888ea1bd5247d5732e8179"><div class="ttname"><a href="class_d3_d12_m_a_1_1_virtual_block.html#a9281daf76e888ea1bd5247d5732e8179">D3D12MA::VirtualBlock::Allocate</a></div><div class="ttdeci">HRESULT Allocate(const VIRTUAL_ALLOCATION_DESC *pDesc, VirtualAllocation *pAllocation, UINT64 *pOffset)</div><div class="ttdoc">Creates new allocation.</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html">D3D12MA::VIRTUAL_ALLOCATION_DESC</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to VirtualBlock::Allocate().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1340</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html_a976b649e45abdd0769da0d79acde4bac"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html#a976b649e45abdd0769da0d79acde4bac">D3D12MA::VIRTUAL_ALLOCATION_DESC::Size</a></div><div class="ttdeci">UINT64 Size</div><div class="ttdoc">Size of the allocation.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1347</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html">D3D12MA::VIRTUAL_ALLOCATION_DESC</a></div><div class="ttdoc">Parameters of created virtual allocation to be passed to VirtualBlock::Allocate().</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1356</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html_a976b649e45abdd0769da0d79acde4bac"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html#a976b649e45abdd0769da0d79acde4bac">D3D12MA::VIRTUAL_ALLOCATION_DESC::Size</a></div><div class="ttdeci">UINT64 Size</div><div class="ttdoc">Size of the allocation.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1363</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_virtual_allocation_html"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_virtual_allocation.html">D3D12MA::VirtualAllocation</a></div><div class="ttdoc">Represents single memory allocation done inside VirtualBlock.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:444</div></div>
</div><!-- fragment --><h1><a class="anchor" id="virtual_allocator_deallocation"></a>
Deallocation</h1>
@ -150,7 +150,7 @@ Alignment and units</h1>
<div class="line"><a class="code hl_struct" href="struct_d3_d12_m_a_1_1_virtual_allocation.html">D3D12MA::VirtualAllocation</a> alloc;</div>
<div class="line">UINT64 allocOffset;</div>
<div class="line">hr = block-&gt;<a class="code hl_function" href="class_d3_d12_m_a_1_1_virtual_block.html#a9281daf76e888ea1bd5247d5732e8179">Allocate</a>(&amp;allocDesc, &amp;alloc, &amp;allocOffset);</div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html_aaa95e62f2f399339a09dcbb312a42de0"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html#aaa95e62f2f399339a09dcbb312a42de0">D3D12MA::VIRTUAL_ALLOCATION_DESC::Alignment</a></div><div class="ttdeci">UINT64 Alignment</div><div class="ttdoc">Required alignment of the allocation.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1352</div></div>
<div class="ttc" id="astruct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c_html_aaa95e62f2f399339a09dcbb312a42de0"><div class="ttname"><a href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___a_l_l_o_c_a_t_i_o_n___d_e_s_c.html#aaa95e62f2f399339a09dcbb312a42de0">D3D12MA::VIRTUAL_ALLOCATION_DESC::Alignment</a></div><div class="ttdeci">UINT64 Alignment</div><div class="ttdoc">Required alignment of the allocation.</div><div class="ttdef"><b>Definition:</b> D3D12MemAlloc.h:1368</div></div>
</div><!-- fragment --><p >Alignments of different allocations made from one block may vary. However, if all alignments and sizes are always multiply of some size e.g. 4 B or <code>sizeof(MyDataStruct)</code>, you can express all sizes, alignments, and offsets in multiples of that size instead of individual bytes. It might be more convenient, but you need to make sure to use this new unit consistently in all the places:</p>
<ul>
<li><a class="el" href="struct_d3_d12_m_a_1_1_v_i_r_t_u_a_l___b_l_o_c_k___d_e_s_c.html#ac56491679f276a5a9956ed99bc4654e4" title="Total size of the block.">D3D12MA::VIRTUAL_BLOCK_DESC::Size</a></li>

16
include/D3D12MemAlloc.h
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@ -993,6 +993,22 @@ enum ALLOCATOR_FLAGS
To be used for debugging purposes.
*/
ALLOCATOR_FLAG_ALWAYS_COMMITTED = 0x2,
/**
Heaps created for the default pools will be created with flag `D3D12_HEAP_FLAG_CREATE_NOT_ZEROED`,
allowing for their memory to be not zeroed by the system if possible,
which can speed up allocation.
Only affects default pools.
To use the flag with @ref custom_pools, you need to add it manually:
\code
poolDesc.heapFlags |= D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
\endcode
Only avaiable if `ID3D12Device8` is present. Otherwise, the flag is ignored.
*/
ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED = 0x4,
};
/// \brief Parameters of created Allocator object. To be used with CreateAllocator().

5
src/D3D12MemAlloc.cpp
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@ -6583,6 +6583,11 @@ HRESULT AllocatorPimpl::Init(const ALLOCATOR_DESC& desc)
D3D12_HEAP_FLAGS heapFlags;
CalcDefaultPoolParams(heapProps.Type, heapFlags, i);
#ifdef __ID3D12Device8_INTERFACE_DEFINED__
if (desc.Flags & ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED)
heapFlags |= D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
#endif
m_BlockVectors[i] = D3D12MA_NEW(GetAllocs(), BlockVector)(
this, // hAllocator
heapProps, // heapType

2
src/D3D12Sample.cpp
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@ -58,7 +58,7 @@ static const D3D_FEATURE_LEVEL MY_D3D_FEATURE_LEVEL = D3D_FEATURE_LEVEL_12_0;
static const bool ENABLE_DEBUG_LAYER = true;
static const bool ENABLE_CPU_ALLOCATION_CALLBACKS = true;
static const bool ENABLE_CPU_ALLOCATION_CALLBACKS_PRINT = false;
static constexpr D3D12MA::ALLOCATOR_FLAGS g_AllocatorFlags = D3D12MA::ALLOCATOR_FLAG_NONE;
static constexpr D3D12MA::ALLOCATOR_FLAGS g_AllocatorFlags = D3D12MA::ALLOCATOR_FLAG_DEFAULT_POOLS_NOT_ZEROED;
static D3D12MA::ALLOCATION_CALLBACKS g_AllocationCallbacks = {}; // Used only when ENABLE_CPU_ALLOCATION_CALLBACKS
static HINSTANCE g_Instance;