147 lines
4.6 KiB
C++
147 lines
4.6 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <string>
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#include "Common/Align.h"
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#include "Common/FileUtil.h"
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#include "Common/StringUtil.h"
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#include "Core/ConfigManager.h"
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#include "VideoBackends/D3D/D3DBase.h"
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#include "VideoBackends/D3D/D3DShader.h"
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#include "VideoBackends/D3D/D3DState.h"
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#include "VideoBackends/D3D/FramebufferManager.h"
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#include "VideoBackends/D3D/GeometryShaderCache.h"
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#include "VideoCommon/Debugger.h"
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#include "VideoCommon/GeometryShaderGen.h"
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#include "VideoCommon/GeometryShaderManager.h"
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#include "VideoCommon/Statistics.h"
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#include "VideoCommon/VideoConfig.h"
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namespace DX11
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{
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ID3D11GeometryShader* ClearGeometryShader = nullptr;
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ID3D11GeometryShader* CopyGeometryShader = nullptr;
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ID3D11GeometryShader* GeometryShaderCache::GetClearGeometryShader()
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{
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return (g_ActiveConfig.stereo_mode != StereoMode::Off) ? ClearGeometryShader : nullptr;
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}
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ID3D11GeometryShader* GeometryShaderCache::GetCopyGeometryShader()
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{
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return (g_ActiveConfig.stereo_mode != StereoMode::Off) ? CopyGeometryShader : nullptr;
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}
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ID3D11Buffer* gscbuf = nullptr;
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ID3D11Buffer*& GeometryShaderCache::GetConstantBuffer()
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{
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// TODO: divide the global variables of the generated shaders into about 5 constant buffers to
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// speed this up
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if (GeometryShaderManager::dirty)
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{
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D3D11_MAPPED_SUBRESOURCE map;
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D3D::context->Map(gscbuf, 0, D3D11_MAP_WRITE_DISCARD, 0, &map);
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memcpy(map.pData, &GeometryShaderManager::constants, sizeof(GeometryShaderConstants));
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D3D::context->Unmap(gscbuf, 0);
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GeometryShaderManager::dirty = false;
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ADDSTAT(stats.thisFrame.bytesUniformStreamed, sizeof(GeometryShaderConstants));
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}
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return gscbuf;
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}
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const char clear_shader_code[] = {
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"struct VSOUTPUT\n"
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"{\n"
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" float4 vPosition : POSITION;\n"
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" float4 vColor0 : COLOR0;\n"
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"};\n"
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"struct GSOUTPUT\n"
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"{\n"
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" float4 vPosition : POSITION;\n"
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" float4 vColor0 : COLOR0;\n"
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" uint slice : SV_RenderTargetArrayIndex;\n"
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"};\n"
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"[maxvertexcount(6)]\n"
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"void main(triangle VSOUTPUT o[3], inout TriangleStream<GSOUTPUT> Output)\n"
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"{\n"
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"for(int slice = 0; slice < 2; slice++)\n"
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"{\n"
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" for(int i = 0; i < 3; i++)\n"
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" {\n"
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" GSOUTPUT OUT;\n"
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" OUT.vPosition = o[i].vPosition;\n"
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" OUT.vColor0 = o[i].vColor0;\n"
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" OUT.slice = slice;\n"
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" Output.Append(OUT);\n"
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" }\n"
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" Output.RestartStrip();\n"
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"}\n"
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"}\n"};
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const char copy_shader_code[] = {
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"struct VSOUTPUT\n"
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"{\n"
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" float4 vPosition : POSITION;\n"
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" float3 vTexCoord : TEXCOORD0;\n"
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"};\n"
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"struct GSOUTPUT\n"
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"{\n"
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" float4 vPosition : POSITION;\n"
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" float3 vTexCoord : TEXCOORD0;\n"
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" uint slice : SV_RenderTargetArrayIndex;\n"
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"};\n"
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"[maxvertexcount(6)]\n"
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"void main(triangle VSOUTPUT o[3], inout TriangleStream<GSOUTPUT> Output)\n"
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"{\n"
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"for(int slice = 0; slice < 2; slice++)\n"
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"{\n"
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" for(int i = 0; i < 3; i++)\n"
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" {\n"
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" GSOUTPUT OUT;\n"
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" OUT.vPosition = o[i].vPosition;\n"
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" OUT.vTexCoord = o[i].vTexCoord;\n"
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" OUT.vTexCoord.z = float(slice);\n"
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" OUT.slice = slice;\n"
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" Output.Append(OUT);\n"
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" }\n"
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" Output.RestartStrip();\n"
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"}\n"
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"}\n"};
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void GeometryShaderCache::Init()
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{
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unsigned int gbsize = Common::AlignUp(static_cast<unsigned int>(sizeof(GeometryShaderConstants)),
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16); // must be a multiple of 16
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D3D11_BUFFER_DESC gbdesc = CD3D11_BUFFER_DESC(gbsize, D3D11_BIND_CONSTANT_BUFFER,
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D3D11_USAGE_DYNAMIC, D3D11_CPU_ACCESS_WRITE);
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HRESULT hr = D3D::device->CreateBuffer(&gbdesc, nullptr, &gscbuf);
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CHECK(hr == S_OK, "Create geometry shader constant buffer (size=%u)", gbsize);
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D3D::SetDebugObjectName(gscbuf,
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"geometry shader constant buffer used to emulate the GX pipeline");
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// used when drawing clear quads
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ClearGeometryShader = D3D::CompileAndCreateGeometryShader(clear_shader_code);
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CHECK(ClearGeometryShader != nullptr, "Create clear geometry shader");
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D3D::SetDebugObjectName(ClearGeometryShader, "clear geometry shader");
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// used for buffer copy
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CopyGeometryShader = D3D::CompileAndCreateGeometryShader(copy_shader_code);
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CHECK(CopyGeometryShader != nullptr, "Create copy geometry shader");
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D3D::SetDebugObjectName(CopyGeometryShader, "copy geometry shader");
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}
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void GeometryShaderCache::Shutdown()
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{
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SAFE_RELEASE(gscbuf);
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SAFE_RELEASE(ClearGeometryShader);
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SAFE_RELEASE(CopyGeometryShader);
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}
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} // DX11
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