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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
#include <memory>
#include "../../../DiligentCore/Primitives/interface/BasicTypes.h"
#include "../../../DiligentCore/Common/interface/BasicMath.hpp"
#include "../../../DiligentCore/Common/interface/RefCntAutoPtr.hpp"
#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/GraphicsTypes.h"
#include "imgui.h"
struct ImDrawData;
namespace Diligent
{
struct IRenderDevice;
struct IDeviceContext;
struct IBuffer;
struct IPipelineState;
struct ITextureView;
struct IShaderResourceBinding;
struct IShaderResourceVariable;
enum TEXTURE_FORMAT : Uint16;
enum SURFACE_TRANSFORM : Uint32;
class ImGuiDiligentRenderer
{
public:
ImGuiDiligentRenderer(IRenderDevice* pDevice,
TEXTURE_FORMAT BackBufferFmt,
TEXTURE_FORMAT DepthBufferFmt,
Uint32 InitialVertexBufferSize,
Uint32 InitialIndexBufferSize);
~ImGuiDiligentRenderer();
void NewFrame(Uint32 RenderSurfaceWidth,
Uint32 RenderSurfaceHeight,
SURFACE_TRANSFORM SurfacePreTransform);
void EndFrame();
void RenderDrawData(IDeviceContext* pCtx, ImDrawData* pDrawData);
void InvalidateDeviceObjects();
void CreateDeviceObjects();
void CreateFontsTexture();
private:
inline float4 TransformClipRect(const ImVec2& DisplaySize, const float4& rect) const;
private:
RefCntAutoPtr<IRenderDevice> m_pDevice;
RefCntAutoPtr<IBuffer> m_pVB;
RefCntAutoPtr<IBuffer> m_pIB;
RefCntAutoPtr<IBuffer> m_pVertexConstantBuffer;
RefCntAutoPtr<IPipelineState> m_pPSO;
RefCntAutoPtr<ITextureView> m_pFontSRV;
RefCntAutoPtr<IShaderResourceBinding> m_pSRB;
IShaderResourceVariable* m_pTextureVar = nullptr;
const TEXTURE_FORMAT m_BackBufferFmt;
const TEXTURE_FORMAT m_DepthBufferFmt;
Uint32 m_VertexBufferSize = 0;
Uint32 m_IndexBufferSize = 0;
Uint32 m_RenderSurfaceWidth = 0;
Uint32 m_RenderSurfaceHeight = 0;
SURFACE_TRANSFORM m_SurfacePreTransform = SURFACE_TRANSFORM_IDENTITY;
};
} // namespace Diligent
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