dolphin/Source/Plugins/Plugin_VideoMerge/Src/DX11/DX11_D3DTexture.cpp

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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include <d3dx11.h>
#include "DX11_D3DBase.h"
#include "DX11_D3DTexture.h"
namespace DX11
{
namespace D3D
{
void ReplaceRGBATexture2D(ID3D11Texture2D* pTexture, const u8* buffer, unsigned int width, unsigned int height, unsigned int pitch, unsigned int level, D3D11_USAGE usage)
{
if (usage == D3D11_USAGE_DYNAMIC)
{
D3D11_MAPPED_SUBRESOURCE map;
HRESULT hr = D3D::context->Map(pTexture, level, D3D11_MAP_WRITE_DISCARD, 0, &map);
CHECK(SUCCEEDED(hr), "ID3D11DeviceContext::Map failed! (%x)", hr);
if (4 * pitch == map.RowPitch)
{
memcpy(map.pData, buffer, map.RowPitch * height);
}
else
{
for (unsigned int y = 0; y < height; ++y)
memcpy((u8*)map.pData + y * map.RowPitch, (u32*)buffer + y * pitch, map.RowPitch);
}
D3D::context->Unmap(pTexture, level);
}
else
{
D3D11_BOX dest_region = CD3D11_BOX(0, 0, 0, width, height, 1);
D3D::context->UpdateSubresource(pTexture, level, &dest_region, buffer, 4*pitch, 4*pitch*height);
}
}
} // namespace
D3DTexture2D* D3DTexture2D::Create(unsigned int width, unsigned int height, D3D11_BIND_FLAG bind, D3D11_USAGE usage, DXGI_FORMAT fmt, unsigned int levels)
{
ID3D11Texture2D* pTexture = NULL;
HRESULT hr;
D3D11_CPU_ACCESS_FLAG cpuflags;
if (usage == D3D11_USAGE_STAGING)
cpuflags = (D3D11_CPU_ACCESS_FLAG)((int)D3D11_CPU_ACCESS_WRITE|(int)D3D11_CPU_ACCESS_READ);
else if (usage == D3D11_USAGE_DYNAMIC)
cpuflags = D3D11_CPU_ACCESS_WRITE;
else
cpuflags = (D3D11_CPU_ACCESS_FLAG)0;
D3D11_TEXTURE2D_DESC texdesc = CD3D11_TEXTURE2D_DESC(fmt, width, height, 1, levels, bind, usage, cpuflags);
hr = D3D::device->CreateTexture2D(&texdesc, NULL, &pTexture);
if (FAILED(hr))
{
PanicAlert("Failed to create texture at %s, line %d: hr=%#x\n", __FILE__, __LINE__, hr);
return NULL;
}
D3DTexture2D* ret = new D3DTexture2D(pTexture, bind);
SAFE_RELEASE(pTexture);
return ret;
}
void D3DTexture2D::AddRef()
{
++ref;
}
UINT D3DTexture2D::Release()
{
--ref;
if (ref == 0)
{
delete this;
return 0;
}
return ref;
}
D3DTexture2D::D3DTexture2D(ID3D11Texture2D* texptr, D3D11_BIND_FLAG bind,
DXGI_FORMAT srv_format, DXGI_FORMAT dsv_format, DXGI_FORMAT rtv_format)
: ref(1), tex(texptr), srv(NULL), rtv(NULL), dsv(NULL)
{
D3D11_SHADER_RESOURCE_VIEW_DESC srv_desc = CD3D11_SHADER_RESOURCE_VIEW_DESC(D3D11_SRV_DIMENSION_TEXTURE2D, srv_format);
D3D11_DEPTH_STENCIL_VIEW_DESC dsv_desc = CD3D11_DEPTH_STENCIL_VIEW_DESC(D3D11_DSV_DIMENSION_TEXTURE2D, dsv_format);
D3D11_RENDER_TARGET_VIEW_DESC rtv_desc = CD3D11_RENDER_TARGET_VIEW_DESC(D3D11_RTV_DIMENSION_TEXTURE2D, rtv_format);
if (bind & D3D11_BIND_SHADER_RESOURCE)
D3D::device->CreateShaderResourceView(tex, &srv_desc, &srv);
if (bind & D3D11_BIND_RENDER_TARGET)
D3D::device->CreateRenderTargetView(tex, &rtv_desc, &rtv);
if (bind & D3D11_BIND_DEPTH_STENCIL)
D3D::device->CreateDepthStencilView(tex, &dsv_desc, &dsv);
tex->AddRef();
}
D3DTexture2D::~D3DTexture2D()
{
SAFE_RELEASE(srv);
SAFE_RELEASE(rtv);
SAFE_RELEASE(dsv);
SAFE_RELEASE(tex);
}
}