X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=helpers%2Fd3d11size.hpp;fp=helpers%2Fd3d11size.hpp;h=f746d80a00b232f530767640ce7de7d3fc90fef4;hb=00622a6e765a3a4fde8d0ba5cca63897647b2adf;hp=0000000000000000000000000000000000000000;hpb=9bb6d55b32ce8ad6d453237a8ccce6469c912f66;p=apitrace

diff --git a/helpers/d3d11size.hpp b/helpers/d3d11size.hpp
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+/**************************************************************************
+ *
+ * Copyright 2012 Jose Fonseca
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * AUTHORS,
+ * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/*
+ * Auxiliary functions to compute the size of array/blob arguments.
+ */
+
+#ifndef _D3D11SIZE_HPP_
+#define _D3D11SIZE_HPP_
+
+
+/* We purposedly don't include any D3D header, so that this header can be used
+ * with all D3D versions. */
+
+#include <assert.h>
+
+#include <algorithm>
+
+#include "dxgisize.hpp"
+
+
+inline UINT
+_getNumMipLevels(const D3D11_BUFFER_DESC *pDesc) {
+    return 1;
+}
+
+inline UINT
+_getNumMipLevels(const D3D11_TEXTURE1D_DESC *pDesc) {
+    return pDesc->MipLevels != 0 ? pDesc->MipLevels : _getNumMipLevels(pDesc->Width);
+}
+
+inline UINT
+_getNumMipLevels(const D3D11_TEXTURE2D_DESC *pDesc) {
+    return pDesc->MipLevels != 0 ? pDesc->MipLevels : _getNumMipLevels(pDesc->Width, pDesc->Height);
+}
+
+inline UINT
+_getNumMipLevels(const D3D11_TEXTURE3D_DESC *pDesc) {
+    return pDesc->MipLevels != 0 ? pDesc->MipLevels : _getNumMipLevels(pDesc->Width, pDesc->Height, pDesc->Depth);
+}
+
+inline UINT
+_getNumSubResources(const D3D11_BUFFER_DESC *pDesc) {
+    return 1;
+}
+
+inline UINT
+_getNumSubResources(const D3D11_TEXTURE1D_DESC *pDesc) {
+    return _getNumMipLevels(pDesc) * pDesc->ArraySize;
+}
+
+inline UINT
+_getNumSubResources(const D3D11_TEXTURE2D_DESC *pDesc) {
+    return _getNumMipLevels(pDesc) * pDesc->ArraySize;
+}
+
+inline UINT
+_getNumSubResources(const D3D11_TEXTURE3D_DESC *pDesc) {
+    return _getNumMipLevels(pDesc);
+}
+
+static inline size_t
+_calcSubresourceSize(const D3D11_BUFFER_DESC *pDesc, UINT Subresource, UINT RowPitch = 0, UINT SlicePitch = 0) {
+    return pDesc->ByteWidth;
+}
+
+static inline size_t
+_calcSubresourceSize(const D3D11_TEXTURE1D_DESC *pDesc, UINT Subresource, UINT RowPitch = 0, UINT SlicePitch = 0) {
+    UINT MipLevel = Subresource % _getNumMipLevels(pDesc);
+    return _calcMipDataSize(MipLevel, pDesc->Format, pDesc->Width, 1, RowPitch, 1, SlicePitch);
+}
+
+static inline size_t
+_calcSubresourceSize(const D3D11_TEXTURE2D_DESC *pDesc, UINT Subresource, UINT RowPitch, UINT SlicePitch = 0) {
+    UINT MipLevel = Subresource % _getNumMipLevels(pDesc);
+    return _calcMipDataSize(MipLevel, pDesc->Format, pDesc->Width, pDesc->Height, RowPitch, 1, SlicePitch);
+}
+
+static inline size_t
+_calcSubresourceSize(const D3D11_TEXTURE3D_DESC *pDesc, UINT Subresource, UINT RowPitch, UINT SlicePitch) {
+    UINT MipLevel = Subresource;
+    return _calcMipDataSize(MipLevel, pDesc->Format, pDesc->Width, pDesc->Height, RowPitch, pDesc->Depth, SlicePitch);
+}
+
+static inline size_t
+_calcSubresourceSize(ID3D11Resource *pDstResource, UINT DstSubresource, const D3D11_BOX *pDstBox, UINT SrcRowPitch, UINT SrcDepthPitch) {
+    if (pDstBox &&
+        (pDstBox->left  >= pDstBox->right ||
+         pDstBox->top   >= pDstBox->bottom ||
+         pDstBox->front >= pDstBox->back)) {
+        return 0;
+    }
+
+    D3D11_RESOURCE_DIMENSION Type = D3D11_RESOURCE_DIMENSION_UNKNOWN;
+    pDstResource->GetType(&Type);
+
+    DXGI_FORMAT Format;
+    UINT Width;
+    UINT Height = 1;
+    UINT Depth = 1;
+    UINT MipLevel = 0;
+
+    switch (Type) {
+    case D3D11_RESOURCE_DIMENSION_BUFFER:
+        if (pDstBox) {
+            return pDstBox->right - pDstBox->left;
+        } else {
+            D3D11_BUFFER_DESC Desc;
+            static_cast<ID3D11Buffer *>(pDstResource)->GetDesc(&Desc);
+            return Desc.ByteWidth;
+        }
+    case D3D11_RESOURCE_DIMENSION_TEXTURE1D:
+        {
+            D3D11_TEXTURE1D_DESC Desc;
+            static_cast<ID3D11Texture1D *>(pDstResource)->GetDesc(&Desc);
+            Format = Desc.Format;
+            Width = Desc.Width;
+            MipLevel = DstSubresource % Desc.MipLevels;
+        }
+        break;
+    case D3D11_RESOURCE_DIMENSION_TEXTURE2D:
+        {
+            D3D11_TEXTURE2D_DESC Desc;
+            static_cast<ID3D11Texture2D *>(pDstResource)->GetDesc(&Desc);
+            Format = Desc.Format;
+            Width = Desc.Width;
+            Height = Desc.Height;
+            MipLevel = DstSubresource % Desc.MipLevels;
+        }
+        break;
+    case D3D11_RESOURCE_DIMENSION_TEXTURE3D:
+        {
+            D3D11_TEXTURE3D_DESC Desc;
+            static_cast<ID3D11Texture3D *>(pDstResource)->GetDesc(&Desc);
+            Format = Desc.Format;
+            Width = Desc.Width;
+            Height = Desc.Height;
+            Depth = Desc.Depth;
+        }
+        break;
+    case D3D11_RESOURCE_DIMENSION_UNKNOWN:
+    default:
+        assert(0);
+        return 0;
+    }
+
+    return _calcMipDataSize(MipLevel, Format, Width, Height, SrcRowPitch, Depth, SrcDepthPitch);
+}
+
+
+static inline void
+_getMapInfo(ID3D11DeviceContext* pContext, ID3D11Resource * pResource, UINT Subresource, D3D11_MAP MapType, UINT MapFlags, D3D11_MAPPED_SUBRESOURCE * pMappedResource,
+            void * & pMappedData, size_t & MappedSize) {
+    pMappedData = 0;
+    MappedSize = 0;
+
+    if (MapType == D3D11_MAP_READ) {
+        return;
+    }
+
+    pMappedData = pMappedResource->pData;
+    MappedSize = _calcSubresourceSize(pResource, Subresource, NULL, pMappedResource->RowPitch, pMappedResource->DepthPitch);
+}
+
+
+#endif /* _D3D11SIZE_HPP_ */