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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
namespace Diligent
{
// Helper class to facilitate texture copying by rendering
class TexRegionRender
{
public:
TexRegionRender(class RenderDeviceGLImpl* pDeviceGL);
void SetStates(class DeviceContextGLImpl* pCtxGL);
void RestoreStates(class DeviceContextGLImpl* pCtxGL);
void Render(class DeviceContextGLImpl* pCtxGL,
ITextureView* pSrcSRV,
RESOURCE_DIMENSION TexType,
TEXTURE_FORMAT TexFormat,
Int32 DstToSrcXOffset,
Int32 DstToSrcYOffset,
Int32 SrcZ,
Int32 SrcMipLevel);
private:
RefCntAutoPtr<IShader> m_pVertexShader;
RefCntAutoPtr<IShader> m_pFragmentShaders[RESOURCE_DIM_NUM_DIMENSIONS * 3];
RefCntAutoPtr<IBuffer> m_pConstantBuffer;
RefCntAutoPtr<IPipelineState> m_pPSO[RESOURCE_DIM_NUM_DIMENSIONS * 3];
RefCntAutoPtr<IShaderResourceBinding> m_pSRB;
IShaderResourceVariable* m_pSrcTexVar = nullptr;
RefCntAutoPtr<IPipelineState> m_pOrigPSO;
Uint32 m_OrigStencilRef = 0;
float m_OrigBlendFactors[4] = {};
Uint32 m_NumRenderTargets = 0;
ITextureView* m_pOrigRTVs[MAX_RENDER_TARGETS] = {};
RefCntAutoPtr<ITextureView> m_pOrigDSV;
std::vector<Viewport> m_OrigViewports;
};
} // namespace Diligent
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