Initial commit

Gems/AtomLyIntegration/ImguiAtom/Assets/Shaders/ImGuiAtom/ImGuiAtom.azsl

@@ -0,0 +1,78 @@
+
+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#include <Atom/Features/SrgSemantics.azsli>
+
+struct VertexInput
+{
+    float2 Position : POSITION;
+    float2 UV : UV;
+    float4 Color : COLOR;
+};
+
+struct VertexOutput
+{
+    float4 Position : SV_Position;
+    float4 Color : COLOR;
+    float2 UV : UV;
+};
+
+ShaderResourceGroup ObjectSrg : SRG_PerObject
+{
+    Texture2D<float4> FontImage;
+    
+    Sampler LinearSampler
+    {
+        MinFilter = Linear;
+        MagFilter = Linear;
+        MipFilter = Linear;
+        AddressU = Clamp;
+        AddressV = Clamp;
+        AddressW = Clamp;
+    };
+    
+    column_major float4x4 m_projectionMatrix;
+}
+
+float3 SRGBToLinear( float3 x )
+{
+    return x < 0.04045f ? x / 12.92f : pow( (abs(x) + 0.055f) / 1.055f, 2.4f );
+
+    // NOTE: abs on x quiets FXC warning "X3571: pow(f, e) will not work for negative f, 
+    // use abs(f) or conditionally handle negative values if you expect them".
+    // Ternary operator ?: in shaders can handle vectors in the condition, but it doesn't
+    // count as 'conditionally handle' since branching is not involved. When we start using
+    // DXC instead of FXC we can remove abs since DXC handles it correctly with no warnings.
+}
+
+VertexOutput MainVS(in VertexInput input)
+{
+    VertexOutput output;
+    output.Position = mul(float4(input.Position, 0.0f, 1.0f), ObjectSrg::m_projectionMatrix);
+    output.Color = float4(SRGBToLinear(input.Color.rgb), input.Color.a);
+    output.UV = input.UV;
+    return output;
+}
+
+struct PixelOutput
+{
+     float4 m_color : SV_Target0;
+};  
+    
+PixelOutput MainPS(in VertexOutput input)
+{
+    PixelOutput output;
+    float4 color = ObjectSrg::FontImage.Sample(ObjectSrg::LinearSampler, input.UV) * input.Color;
+    output.m_color = float4(color.rgb * color.a, color.a);
+    return output;
+}

Gems/AtomLyIntegration/ImguiAtom/Assets/Shaders/ImGuiAtom/ImGuiAtom.shader

@@ -0,0 +1,37 @@
+{
+ 
+    "Source" : "ImGuiAtom",
+
+    
+    "RasterState" : { "CullMode" : "None" },
+
+    "DepthStencilState" : { 
+        "Depth" : { "Enable" : false, "CompareFunc" : "GreaterEqual" }
+    },
+
+    "BlendState" : {
+        "Enable" : true,
+        "BlendSource" : "One",
+        "BlendAlphaSource" : "One",
+        "BlendDest" : "AlphaSourceInverse",
+        "BlendAlphaDest" : "AlphaSourceInverse",
+        "BlendAlphaOp" : "Add"
+    },
+
+    "DrawList" : "imgui",
+
+    "ProgramSettings":
+    {
+      "EntryPoints":
+      [
+        {
+          "name": "MainVS",
+          "type": "Vertex"
+        },
+        {
+          "name": "MainPS",
+          "type": "Fragment"
+        }
+      ]
+    }
+}

Gems/AtomLyIntegration/ImguiAtom/CMakeLists.txt

@@ -0,0 +1,12 @@
+#
+# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+# its licensors.
+#
+# For complete copyright and license terms please see the LICENSE at the root of this
+# distribution (the "License"). All use of this software is governed by the License,
+# or, if provided, by the license below or the license accompanying this file. Do not
+# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#
+
+add_subdirectory(Code)

Gems/AtomLyIntegration/ImguiAtom/Code/CMakeLists.txt

@@ -0,0 +1,45 @@
+#
+# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+# its licensors.
+#
+# For complete copyright and license terms please see the LICENSE at the root of this
+# distribution (the "License"). All use of this software is governed by the License,
+# or, if provided, by the license below or the license accompanying this file. Do not
+# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#
+
+ly_add_target(
+    NAME ImguiAtom.Static STATIC
+    NAMESPACE Gem
+    FILES_CMAKE
+        imguiatom_files.cmake
+    INCLUDE_DIRECTORIES
+        PRIVATE
+            Source
+        PUBLIC
+            Include
+    BUILD_DEPENDENCIES
+        PUBLIC
+            AZ::AtomCore
+            AZ::AzCore
+            Gem::ImGui.Static
+            Gem::Atom_Feature_Common.Static
+)
+
+ly_add_target(
+    NAME ImguiAtom ${PAL_TRAIT_MONOLITHIC_DRIVEN_MODULE_TYPE}
+    NAMESPACE Gem
+    OUTPUT_NAME Gem.ImguiAtom.9986e22e14184f2fb6bb1e7dd185b2f9.v0.1.0
+    FILES_CMAKE
+        imguiatom_shared_files.cmake
+    INCLUDE_DIRECTORIES
+        PRIVATE
+            Source
+        PUBLIC
+            Include
+    BUILD_DEPENDENCIES
+        PRIVATE
+            AZ::AzFramework
+            Gem::ImguiAtom.Static
+)

Gems/AtomLyIntegration/ImguiAtom/Code/Source/ImguiAtomModule.cpp

@@ -0,0 +1,51 @@
+/*
+ * All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+ * its licensors.
+ *
+ * For complete copyright and license terms please see the LICENSE at the root of this
+ * distribution (the "License"). All use of this software is governed by the License,
+ * or, if provided, by the license below or the license accompanying this file. Do not
+ * remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ */
+
+#include <AzCore/Memory/SystemAllocator.h>
+#include <AzCore/Module/Module.h>
+
+#include <ImguiAtomSystemComponent.h>
+
+namespace ImguiAtom
+{
+    class ImguiAtomModule
+        : public AZ::Module
+    {
+    public:
+        AZ_RTTI(ImguiAtomModule, "{E3CE5991-30B5-4B04-BF79-516DDBD4D233}", AZ::Module);
+        AZ_CLASS_ALLOCATOR(ImguiAtomModule, AZ::SystemAllocator, 0);
+
+        ImguiAtomModule()
+            : AZ::Module()
+        {
+            // Push results of [MyComponent]::CreateDescriptor() into m_descriptors here.
+            m_descriptors.insert(m_descriptors.end(), {
+                AZ::LYIntegration::ImguiAtomSystemComponent::CreateDescriptor(),
+            });
+        }
+
+        /**
+         * Add required SystemComponents to the SystemEntity.
+         */
+        AZ::ComponentTypeList GetRequiredSystemComponents() const override
+        {
+            return AZ::ComponentTypeList{
+                azrtti_typeid<AZ::LYIntegration::ImguiAtomSystemComponent>(),
+            };
+        }
+    };
+}
+
+// DO NOT MODIFY THIS LINE UNLESS YOU RENAME THE GEM
+// The first parameter should be GemName_GemIdLower
+// The second should be the fully qualified name of the class above
+AZ_DECLARE_MODULE_CLASS(Gem_ImguiAtom, ImguiAtom::ImguiAtomModule)

Gems/AtomLyIntegration/ImguiAtom/Code/Source/ImguiAtomSystemComponent.cpp

@@ -0,0 +1,64 @@
+/*
+* All or portions of this file Copyright(c) Amazon.com, Inc.or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution(the "License").All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file.Do not
+* remove or modify any license notices.This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#include "ImguiAtomSystemComponent.h"
+
+#include <AzCore/Serialization/SerializeContext.h>
+#include <AzFramework/Windowing/WindowBus.h>
+#include <Atom/Feature/ImGui/ImGuiUtils.h>
+#include <Atom/Feature/ImGui/SystemBus.h>
+
+namespace AZ
+{
+    namespace LYIntegration
+    {
+        void ImguiAtomSystemComponent::Reflect(AZ::ReflectContext* context)
+        {
+            if (auto* serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
+            {
+                serializeContext->Class<ImguiAtomSystemComponent, AZ::Component>()
+                    ->Version(0)
+                    ;
+            }
+        }
+
+        void ImguiAtomSystemComponent::GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided)
+        {
+            provided.push_back(AZ_CRC_CE("ImguiAtomSystemComponent"));
+        }
+
+        void ImguiAtomSystemComponent::GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required)
+        {
+            required.push_back(AZ_CRC_CE("CommonService"));
+        }
+
+        void ImguiAtomSystemComponent::GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatbile)
+        {
+            incompatbile.push_back(AZ_CRC_CE("ImguiAtomSystemComponent"));
+        }
+
+        void ImguiAtomSystemComponent::Activate()
+        {
+            ImGui::OtherActiveImGuiRequestBus::Handler::BusConnect();
+        }
+
+        void ImguiAtomSystemComponent::Deactivate()
+        {
+            ImGui::OtherActiveImGuiRequestBus::Handler::BusDisconnect();
+        }
+
+        void ImguiAtomSystemComponent::RenderImGuiBuffers(const ImDrawData& drawData)
+        {
+            Render::ImGuiSystemRequestBus::Broadcast(&Render::ImGuiSystemRequests::RenderImGuiBuffersToDefaultPass, drawData);
+        }
+    }
+}

Gems/AtomLyIntegration/ImguiAtom/Code/Source/ImguiAtomSystemComponent.h

@@ -0,0 +1,50 @@
+/*
+* All or portions of this file Copyright(c) Amazon.com, Inc.or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution(the "License").All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file.Do not
+* remove or modify any license notices.This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#pragma once
+
+#include <AzCore/Component/Component.h>
+#include <AzCore/Component/TickBus.h>
+#include <OtherActiveImGuiBus.h>
+
+namespace AZ
+{
+    namespace LYIntegration
+    {
+        class ImGuiFeatureProcessor;
+
+        //! When Atom is enabled, ImGuiManager from LY's ImGui gem will hand over drawing of ImGui via @OtherActiveImGuiRequestBus to this system component.
+        //! Note: The LY ImGui gem only supports a single ImGui context, so Atom must have a single ImGui pass marked as the default.
+        class ImguiAtomSystemComponent final
+            : public AZ::Component
+            , public ImGui::OtherActiveImGuiRequestBus::Handler
+        {
+        public:
+            AZ_COMPONENT(ImguiAtomSystemComponent, "{D423E075-D971-435A-A9C1-57C3B0623A9B}");
+
+            static void Reflect(AZ::ReflectContext* context);
+            static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided);
+            static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required);
+            static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatbile);
+
+            ~ImguiAtomSystemComponent() override = default;
+
+            // AZ::Component
+            void Activate() override;
+            void Deactivate() override;
+
+            // OtherActiveImGuiRequestBus overrides ...
+            void RenderImGuiBuffers(const ImDrawData& drawData) override;
+
+        };
+    } // namespace LYIntegration
+} // namespace AZ

Gems/AtomLyIntegration/ImguiAtom/Code/imguiatom_files.cmake

@@ -0,0 +1,15 @@
+#
+# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+# its licensors.
+#
+# For complete copyright and license terms please see the LICENSE at the root of this
+# distribution (the "License"). All use of this software is governed by the License,
+# or, if provided, by the license below or the license accompanying this file. Do not
+# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#
+
+set(FILES
+    Source/ImguiAtomSystemComponent.cpp
+    Source/ImguiAtomSystemComponent.h
+)

Gems/AtomLyIntegration/ImguiAtom/Code/imguiatom_shared_files.cmake

@@ -0,0 +1,14 @@
+#
+# All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+# its licensors.
+#
+# For complete copyright and license terms please see the LICENSE at the root of this
+# distribution (the "License"). All use of this software is governed by the License,
+# or, if provided, by the license below or the license accompanying this file. Do not
+# remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#
+
+set(FILES
+    Source/ImguiAtomModule.cpp
+)

Gems/AtomLyIntegration/ImguiAtom/gem.json

@@ -0,0 +1,31 @@
+{
+    "GemFormatVersion": 4,
+    "Uuid": "9986e22e14184f2fb6bb1e7dd185b2f9",
+    "Name": "ImguiAtom",
+    "DisplayName": "ImGui.Atom",
+    "Version": "0.1.0",
+    "Summary": "Provides ImGui implementation for Atom renderer",
+    "Tags": ["Atom", "ImGui"],
+    "IconPath": "preview.png",
+    "Modules": [
+        {
+            "Type": "GameModule"
+        }
+    ],
+    "Dependencies": [
+        {
+            "Uuid": "bab8807a1bc646b3909f3cc200ffeedf",
+            "VersionConstraints": [
+                "~>0.1"
+            ],
+            "_comment": "ImGui"
+        },
+        {
+            "Uuid": "a218db9eb2114477b46600fea4441a6c",
+            "VersionConstraints": [
+                "~>0.1"
+            ],
+            "_comment": "Atom RPI"
+        }
+    ]
+}

Gems/AtomLyIntegration/ImguiAtom/preview.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6d6204c6730e5675791765ca194e9b1cbec282208e280507de830afc2805e5fa
+size 41127