implot/backends/implot_backend.h

// MIT License

// Copyright (c) 2021 Evan Pezent

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

// ImPlot v0.13 WIP

#pragma once

#if defined(IMPLOT_BACKEND_ENABLE_OPENGL3)
    #define IMPLOT_BACKEND_ENABLED
    #define IMPLOT_BACKEND_HAS_HEATMAP
    #define IMPLOT_BACKEND_HAS_COLORMAP
#elif defined(IMPLOT_BACKEND_ENABLE_METAL)
#endif

namespace ImPlot {
namespace Backend {

#ifdef IMPLOT_BACKEND_ENABLED
    void* CreateContext();
    void DestroyContext();
    void ShowBackendMetrics();
    void BustPlotCache();
    void BustItemCache();
#else
    inline void* CreateContext() { return nullptr; }
    inline void DestroyContext() {}
    inline void ShowBackendMetrics() {}
    inline void BustPlotCache() {}
    inline void BustItemCache() {}
#endif

#ifdef IMPLOT_BACKEND_HAS_COLORMAP
    void AddColormap(const ImU32*, int, bool);
#else
    inline void AddColormap(const ImU32*, int, bool) {}
#endif

#ifdef IMPLOT_BACKEND_HAS_HEATMAP
    void RenderHeatmap(
        int itemID,
        const void* data,
        ImGuiDataType data_type,
        int rows,
        int cols,
        float scale_min,
        float scale_max,
        const ImVec2& coords_min,
        const ImVec2& coords_max,
        const ImPlotPoint& bounds_min,
        const ImPlotPoint& bounds_max,
        int scale,
        bool reverse_y,
        ImPlotColormap cmap,
        ImDrawList& DrawList);
#endif

} // namespace Backend
} // namespace ImPlot