92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_SHADEREFFECT_H__
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#define __GUI_SHADEREFFECT_H__
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#include <NsCore/Noesis.h>
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#include <NsCore/ReflectionDeclare.h>
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#include <NsGui/CoreApi.h>
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#include <NsGui/Effect.h>
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namespace Noesis
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{
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Provides a custom bitmap effect by using a pixel shader.
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///
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/// Derive from the ShaderEffect class to implement a custom effect based on a single pixel shader.
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///
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/// .. code-block:: xml
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///
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/// <Grid
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/// xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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/// xmlns:local="clr-namespace:Effects">
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///
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/// <Image Width="300" Height="300" Source="Images/image.jpg">
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/// <Image.Effect>
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/// <local:ThresholdEffect Threshold="0.25" />
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/// </Image.Effect>
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/// </Image>
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///
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/// </Grid>
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///
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/// https://docs.microsoft.com/en-us/dotnet/api/system.windows.media.effects.shadereffect
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API ShaderEffect: public Effect
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{
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public:
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ShaderEffect();
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ShaderEffect(const ShaderEffect&) = delete;
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ShaderEffect& operator=(const ShaderEffect&) = delete;
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virtual ~ShaderEffect() = 0;
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/// From IRenderProxyCreator
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//@{
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void CreateRenderProxy(RenderTreeUpdater& updater, uint32_t proxyIndex) override;
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void UpdateRenderProxy(RenderTreeUpdater& updater, uint32_t proxyIndex) override;
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//@}
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/// From Freezable
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//@{
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Ptr<Freezable> CreateInstanceCore() const override;
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//@}
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protected:
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/// Sets a value indicating that the effect's output texture is larger than its input texture
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void SetPadding(float left, float top, float right, float bottom);
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/// Sets the shader instructions for this effect
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void SetPixelShader(void* shader);
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/// Sets the constant buffer for this effect's pixel shader
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void SetConstantBuffer(const void* buffer, uint32_t size);
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/// This method must be called whenever the content of the constant buffer changes
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void InvalidateConstantBuffer();
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protected:
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float mPaddingLeft, mPaddingTop, mPaddingRight, mPaddingBottom;
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const void* mCBuffer;
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uint32_t mCBufferSize;
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static const DependencyProperty* PixelShaderProperty;
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NS_DECLARE_REFLECTION(ShaderEffect, Effect)
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};
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NS_WARNING_POP
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}
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#endif
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