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#include "SamplePlugin.h"
#include "GraphicsUtilities.h"
#include "MapHelper.hpp"
using namespace Diligent;
static const Char* VSSource = R"(
cbuffer Constants
{
float4x4 g_WorldViewProj;
};
struct PSInput
{
float4 Pos : SV_POSITION;
float4 Color : COLOR0;
};
PSInput main(float3 pos : ATTRIB0, float4 color : ATTRIB1)
{
PSInput ps;
ps.Pos = mul( float4(pos,1.0), g_WorldViewProj);
ps.Color = color;
return ps;
}
)";
static const Char* PSSource = R"(
struct PSInput
{
float4 Pos : SV_POSITION;
float4 Color : COLOR0;
};
float4 main(PSInput ps_in) : SV_TARGET
{
return ps_in.Color;
}
)";
SamplePlugin::SamplePlugin(Diligent::IRenderDevice *pDevice, bool UseReverseZ, TEXTURE_FORMAT RTVFormat, TEXTURE_FORMAT DSVFormat)
{
auto deviceType = pDevice->GetDeviceCaps().DevType;
{
GraphicsPipelineStateCreateInfo PSOCreateInfo;
PipelineStateDesc& PSODesc = PSOCreateInfo.PSODesc;
GraphicsPipelineDesc& GraphicsPipeline = PSOCreateInfo.GraphicsPipeline;
PSODesc.PipelineType = PIPELINE_TYPE_GRAPHICS;
PSODesc.Name = "Render sample cube PSO";
GraphicsPipeline.NumRenderTargets = 1;
GraphicsPipeline.RTVFormats[0] = RTVFormat;
GraphicsPipeline.DSVFormat = DSVFormat;
GraphicsPipeline.PrimitiveTopology = PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
GraphicsPipeline.RasterizerDesc.CullMode = CULL_MODE_BACK;
GraphicsPipeline.RasterizerDesc.FrontCounterClockwise = deviceType == RENDER_DEVICE_TYPE_D3D11 || deviceType == RENDER_DEVICE_TYPE_D3D12 ? true : false;
GraphicsPipeline.DepthStencilDesc.DepthFunc = UseReverseZ ? COMPARISON_FUNC_GREATER_EQUAL : COMPARISON_FUNC_LESS_EQUAL;
GraphicsPipeline.BlendDesc.RenderTargets[0].BlendEnable = True;
GraphicsPipeline.BlendDesc.RenderTargets[0].SrcBlend = BLEND_FACTOR_SRC_ALPHA;
GraphicsPipeline.BlendDesc.RenderTargets[0].DestBlend = BLEND_FACTOR_INV_SRC_ALPHA;
GraphicsPipeline.BlendDesc.RenderTargets[0].SrcBlendAlpha = BLEND_FACTOR_ZERO;
GraphicsPipeline.BlendDesc.RenderTargets[0].DestBlendAlpha = BLEND_FACTOR_ONE;
ShaderCreateInfo ShaderCI;
ShaderCI.SourceLanguage = SHADER_SOURCE_LANGUAGE_HLSL;
ShaderCI.UseCombinedTextureSamplers = true;
CreateUniformBuffer(pDevice, sizeof(float4x4), "SamplePlugin: VS constants CB", &m_VSConstants);
RefCntAutoPtr<IShader> pVS;
{
ShaderCI.Desc.ShaderType = SHADER_TYPE_VERTEX;
ShaderCI.EntryPoint = "main";
ShaderCI.Desc.Name = "Sample cube VS";
ShaderCI.Source = VSSource;
pDevice->CreateShader(ShaderCI, &pVS);
}
RefCntAutoPtr<IShader> pPS;
{
ShaderCI.Desc.ShaderType = SHADER_TYPE_PIXEL;
ShaderCI.EntryPoint = "main";
ShaderCI.Desc.Name = "Sample cube PS";
ShaderCI.Source = PSSource;
pDevice->CreateShader(ShaderCI, &pPS);
}
LayoutElement LayoutElems[] =
{
LayoutElement{0, 0, 3, VT_FLOAT32, False},
LayoutElement{1, 0, 4, VT_FLOAT32, False}
};
PSODesc.ResourceLayout.DefaultVariableType = SHADER_RESOURCE_VARIABLE_TYPE_STATIC;
PSOCreateInfo.pVS = pVS;
PSOCreateInfo.pPS = pPS;
GraphicsPipeline.InputLayout.LayoutElements = LayoutElems;
GraphicsPipeline.InputLayout.NumElements = _countof(LayoutElems);
pDevice->CreateGraphicsPipelineState(PSOCreateInfo, &m_PSO);
m_PSO->GetStaticVariableByName(SHADER_TYPE_VERTEX, "Constants")->Set(m_VSConstants);
m_PSO->CreateShaderResourceBinding(&m_SRB, true);
}
{
struct Vertex
{
float3 pos;
float4 color;
};
Vertex CubeVerts[8] =
{
{float3(-1,-1,-1), float4(1,0,0,0.5)},
{float3(-1,+1,-1), float4(0,1,0,0.5)},
{float3(+1,+1,-1), float4(0,0,1,0.5)},
{float3(+1,-1,-1), float4(1,1,1,0.5)},
{float3(-1,-1,+1), float4(1,1,0,0.5)},
{float3(-1,+1,+1), float4(0,1,1,0.5)},
{float3(+1,+1,+1), float4(1,0,1,0.5)},
{float3(+1,-1,+1), float4(0.2f,0.2f,0.2f,0.5)},
};
BufferDesc VertBuffDesc;
VertBuffDesc.Name = "SamplePlugin: cube vertex buffer";
VertBuffDesc.Usage = USAGE_DEFAULT;
VertBuffDesc.BindFlags = BIND_VERTEX_BUFFER;
VertBuffDesc.uiSizeInBytes = sizeof(CubeVerts);
BufferData VBData;
VBData.pData = CubeVerts;
VBData.DataSize = sizeof(CubeVerts);
pDevice->CreateBuffer(VertBuffDesc, &VBData, &m_CubeVertexBuffer);
}
{
Uint32 Indices[] =
{
2,0,1, 2,3,0,
4,6,5, 4,7,6,
0,7,4, 0,3,7,
1,0,4, 1,4,5,
1,5,2, 5,6,2,
3,6,7, 3,2,6
};
BufferDesc IndBuffDesc;
IndBuffDesc.Name = "SamplePlugin: cube index buffer";
IndBuffDesc.Usage = USAGE_DEFAULT;
IndBuffDesc.BindFlags = BIND_INDEX_BUFFER;
IndBuffDesc.uiSizeInBytes = sizeof(Indices);
BufferData IBData;
IBData.pData = Indices;
IBData.DataSize = sizeof(Indices);
pDevice->CreateBuffer(IndBuffDesc, &IBData, &m_CubeIndexBuffer);
}
}
void SamplePlugin::Render(Diligent::IDeviceContext *pContext, const float4x4 &ViewProjMatrix)
{
{
MapHelper<float4x4> CBConstants(pContext, m_VSConstants, MAP_WRITE, MAP_FLAG_DISCARD);
*CBConstants = ViewProjMatrix.Transpose();
}
Uint32 offset = 0;
IBuffer *pBuffs[] = {m_CubeVertexBuffer};
pContext->SetVertexBuffers(0, 1, pBuffs, &offset, RESOURCE_STATE_TRANSITION_MODE_TRANSITION, SET_VERTEX_BUFFERS_FLAG_RESET);
pContext->SetIndexBuffer(m_CubeIndexBuffer, 0, RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
pContext->SetPipelineState(m_PSO);
pContext->CommitShaderResources(m_SRB, RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
DrawIndexedAttribs DrawAttrs(36, VT_UINT32, DRAW_FLAG_VERIFY_ALL);
pContext->DrawIndexed(DrawAttrs);
}
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