public GuiRender(GpuDevice device)
{
//gui render is a simple render to render gui object
//gui render can provide some simple object draw function
//we can replace it to our render and we can use it in the gui system render function
mDevice = device;
//default transform is I
mTransforms = new Stack <Matrix4x4>();
//init blend state
mBlendState = new GpuBlendState(mDevice, new RenderTargetBlendDescription()
{
AlphaBlendOperation = GpuBlendOperation.Add,
BlendOperation = GpuBlendOperation.Add,
DestinationAlphaBlend = GpuBlendOption.InverseSourceAlpha,
DestinationBlend = GpuBlendOption.InverseSourceAlpha,
SourceAlphaBlend = GpuBlendOption.SourceAlpha,
SourceBlend = GpuBlendOption.SourceAlpha,
IsBlendEnable = true
});
//init vertex shader, for all draw command we use same vertex shader
mVertexShader = new GpuVertexShader(mDevice, GpuVertexShader.Compile(Properties.Resources.GuiRenderShader, "vs_main"));
//init pixel shader, we will choose the best pixel shader for different draw command
mPixelShader = new GpuPixelShader(mDevice, GpuPixelShader.Compile(Properties.Resources.GuiRenderShader, "ps_main"));
//init sampler state
mSamplerState = new GpuSamplerState(mDevice);
//init input layout
//Position : float3
//Texcoord : float2
mInputLayout = new GpuInputLayout(mDevice, new InputElement[]
{
new InputElement("POSITION", 0, 12),
new InputElement("TEXCOORD", 0, 8)
}, mVertexShader);
InitializeSquareBuffer();
InitializeConstantBuffer();
InitializeRectangleBuffer();
}
public GuiRender(GpuDevice device)
{
//gui render is a simple render to render gui object
//gui render can provide some simple object draw function
//we can replace it to our render and we can use it in the gui system render function
mDevice = device;
//default transform is I
Transform = Matrix4x4.Identity;
//init blend state
mBlendState = new GpuBlendState(mDevice, new RenderTargetBlendDescription()
{
AlphaBlendOperation = GpuBlendOperation.Add,
BlendOperation = GpuBlendOperation.Add,
DestinationAlphaBlend = GpuBlendOption.InverseSourceAlpha,
DestinationBlend = GpuBlendOption.InverseSourceAlpha,
SourceAlphaBlend = GpuBlendOption.SourceAlpha,
SourceBlend = GpuBlendOption.SourceAlpha,
IsBlendEnable = true
});
//init vertex shader, for all draw command we use same vertex shader
mVertexShader = new GpuVertexShader(mDevice, GpuVertexShader.Compile(Properties.Resources.GuiRenderCommonVertexShader));
//init pixel shader, we will choose the best pixel shader for different draw command
mColorPixelShader = new GpuPixelShader(mDevice, GpuPixelShader.Compile(Properties.Resources.GuiRenderColorPixelShader));
mTexturePixelShader = new GpuPixelShader(mDevice, GpuPixelShader.Compile(Properties.Resources.GuiRenderTexturePixelShader));
//init sampler state
mSamplerState = new GpuSamplerState(mDevice);
//init input layout
//Position : float3
//Texcoord : float2
mInputLayout = new GpuInputLayout(mDevice, new InputElement[]
{
new InputElement("POSITION", 0, 12),
new InputElement("TEXCOORD", 0, 8)
}, mVertexShader);
//init render object vertex buffer and index buffer
//init square vertex data
Vertex[] squareVertices = new Vertex[]
{
new Vertex()
{
Position = new Vector3(0, 0, 0), TexCoord = new Vector2(0, 0)
},
new Vertex()
{
Position = new Vector3(0, 1, 0), TexCoord = new Vector2(0, 1)
},
new Vertex()
{
Position = new Vector3(1, 1, 0), TexCoord = new Vector2(1, 1)
},
new Vertex()
{
Position = new Vector3(1, 0, 0), TexCoord = new Vector2(1, 0)
}
};
//init square index data
uint[] squareIndices = new uint[] { 0, 1, 2, 0, 2, 3 };
//init square buffer and update
mSquareVertexBuffer = new GpuBuffer(
Utility.SizeOf <Vertex>() * squareVertices.Length,
Utility.SizeOf <Vertex>() * 1,
mDevice,
GpuResourceInfo.VertexBuffer());
mSquareIndexBuffer = new GpuBuffer(
Utility.SizeOf <uint>() * squareIndices.Length,
Utility.SizeOf <uint>() * 1,
mDevice,
GpuResourceInfo.IndexBuffer());
mSquareVertexBuffer.Update(squareVertices);
mSquareIndexBuffer.Update(squareIndices);
//init rectangle index data
uint[] rectangleIndices = new uint[]
{
0, 4, 1, 1, 4, 5,
0, 3, 4, 3, 7, 4,
3, 6, 7, 2, 6, 3,
2, 1, 6, 1, 5, 6
};
//init rectangle vertex and index buffer
mRectangleVertexBuffer = new GpuBuffer(
Utility.SizeOf <Vertex>() * 8,
Utility.SizeOf <Vertex>() * 1,
mDevice,
GpuResourceInfo.VertexBuffer());
mRectangleIndexBuffer = new GpuBuffer(
Utility.SizeOf <uint>() * 24,
Utility.SizeOf <uint>() * 1,
mDevice,
GpuResourceInfo.IndexBuffer());
mRectangleIndexBuffer.Update(rectangleIndices);
//init shader buffer
mMatrixDataBuffer = new GpuBuffer(
Utility.SizeOf <MatrixData>(),
Utility.SizeOf <MatrixData>(),
mDevice,
GpuResourceInfo.ConstantBuffer());
mRenderConfigBuffer = new GpuBuffer(
Utility.SizeOf <RenderConfig>(),
Utility.SizeOf <RenderConfig>(),
mDevice,
GpuResourceInfo.ConstantBuffer());
}
public PresentRender(GpuDevice device, IntPtr handle, Size size)
{
mHandle = handle;
mDevice = device;
mSwapChain = new GpuSwapChain(handle, size, GpuPixelFormat.R8G8B8A8Unknown, mDevice);
mBlendState = new GpuBlendState(mDevice, new RenderTargetBlendDescription()
{
AlphaBlendOperation = GpuBlendOperation.Add,
BlendOperation = GpuBlendOperation.Add,
DestinationAlphaBlend = GpuBlendOption.InverseSourceAlpha,
DestinationBlend = GpuBlendOption.InverseSourceAlpha,
SourceAlphaBlend = GpuBlendOption.SourceAlpha,
SourceBlend = GpuBlendOption.SourceAlpha,
IsBlendEnable = true
});
//compile shader
mVertexShader = new GpuVertexShader(mDevice, GpuVertexShader.Compile(Properties.Resources.PresentVertexShader));
mDrawPixelShader = new GpuPixelShader(mDevice, GpuPixelShader.Compile(Properties.Resources.PresentDrawPixelShader));
mMaskPixelShader = new GpuPixelShader(mDevice, GpuPixelShader.Compile(Properties.Resources.PresentMaskPixelShader));
//create input layout, we only need to render texture
mInputLayout = new GpuInputLayout(mDevice, new InputElement[]
{
new InputElement("POSITION", 0, 12),
new InputElement("TEXCOORD", 0, 8)
}, mVertexShader);
//init vertex and index data
Vertex[] vertices = new Vertex[]
{
new Vertex()
{
Position = new System.Numerics.Vector3(0, 0, 0), TexCoord = new System.Numerics.Vector2(0, 0)
},
new Vertex()
{
Position = new System.Numerics.Vector3(0, 1, 0), TexCoord = new System.Numerics.Vector2(0, 1)
},
new Vertex()
{
Position = new System.Numerics.Vector3(1, 1, 0), TexCoord = new System.Numerics.Vector2(1, 1)
},
new Vertex()
{
Position = new System.Numerics.Vector3(1, 0, 0), TexCoord = new System.Numerics.Vector2(1, 0)
}
};
uint[] indices = new uint[]
{
0, 1, 2,
2, 3, 0
};
//create vertex and index buffer
mVertexBuffer = new GpuBuffer(
Utility.SizeOf <Vertex>() * vertices.Length,
Utility.SizeOf <Vertex>(),
mDevice, GpuResourceInfo.VertexBuffer());
mIndexBuffer = new GpuBuffer(
Utility.SizeOf <uint>() * indices.Length,
Utility.SizeOf <uint>(),
mDevice, GpuResourceInfo.IndexBuffer());
mVertexBuffer.Update(vertices);
mIndexBuffer.Update(indices);
//create constant buffer
//transform buffer is used for vertex shader to do transform
//render config buffer is used for pixel shader to render with opacity
mTransformBuffer = new GpuBuffer(
Utility.SizeOf <Transform>(),
Utility.SizeOf <Transform>(),
mDevice, GpuResourceInfo.ConstantBuffer());
mRenderConfigBuffer = new GpuBuffer(
Utility.SizeOf <RenderConfig>(),
Utility.SizeOf <RenderConfig>(),
mDevice, GpuResourceInfo.ConstantBuffer());
mGpuSamplerState = new GpuSamplerState(mDevice);
}
