mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
8f025a2c56
This commit makes `LineRenderer` and `TextRenderer` to batch line and text rendering. Batching them has shown a significant speedup, especially when usin CUDA.
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_rendering_TextRendererBatcher_h
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#define vtk_m_rendering_TextRendererBatcher_h
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#include <string>
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#include <vector>
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#include <vtkm/rendering/BitmapFont.h>
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#include <vtkm/rendering/Canvas.h>
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#include <vtkm/rendering/Color.h>
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#include <vtkm/rendering/vtkm_rendering_export.h>
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namespace vtkm
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{
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namespace rendering
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{
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class VTKM_RENDERING_EXPORT TextRendererBatcher
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{
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public:
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using FontTextureType = vtkm::rendering::Canvas::FontTextureType;
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using ScreenCoordsType = vtkm::Id4;
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using TextureCoordsType = vtkm::Vec4f_32;
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using ColorType = vtkm::Vec4f_32;
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using ScreenCoordsArrayHandle = vtkm::cont::ArrayHandle<ScreenCoordsType>;
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using TextureCoordsArrayHandle = vtkm::cont::ArrayHandle<TextureCoordsType>;
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using ColorsArrayHandle = vtkm::cont::ArrayHandle<ColorType>;
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using DepthsArrayHandle = vtkm::cont::ArrayHandle<vtkm::Float32>;
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/*
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VTKM_CONT
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TextRendererBatcher();
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*/
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VTKM_CONT
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TextRendererBatcher(const vtkm::rendering::Canvas::FontTextureType& fontTexture);
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VTKM_CONT
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void BatchText(const ScreenCoordsArrayHandle& screenCoords,
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const TextureCoordsArrayHandle& textureCoords,
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const vtkm::rendering::Color& color,
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const vtkm::Float32& depth);
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void Render(const vtkm::rendering::Canvas* canvas) const;
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private:
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vtkm::rendering::Canvas::FontTextureType FontTexture;
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std::vector<ScreenCoordsType> ScreenCoords;
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std::vector<TextureCoordsType> TextureCoords;
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std::vector<ColorType> Colors;
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std::vector<vtkm::Float32> Depths;
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};
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}
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} // namespace vtkm::rendering
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#endif // vtk_m_rendering_TextRendererBatcher_h
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