git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/modules/juce_opengl/opengl/juce_OpenGLGraphicsContext.h

@@ -0,0 +1,96 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
+   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
+
+   End User License Agreement: www.juce.com/juce-6-licence
+   Privacy Policy: www.juce.com/juce-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+/** Creates a graphics context object that will render into the given OpenGL target. */
+std::unique_ptr<LowLevelGraphicsContext> createOpenGLGraphicsContext (OpenGLContext&, int width, int height);
+
+/** Creates a graphics context object that will render into the given OpenGL framebuffer. */
+std::unique_ptr<LowLevelGraphicsContext> createOpenGLGraphicsContext (OpenGLContext&, OpenGLFrameBuffer&);
+
+/** Creates a graphics context object that will render into the given OpenGL framebuffer,
+    with the given size.
+*/
+std::unique_ptr<LowLevelGraphicsContext> createOpenGLGraphicsContext (OpenGLContext&,
+                                                                      unsigned int frameBufferID,
+                                                                      int width, int height);
+
+
+//==============================================================================
+/**
+    Used to create custom shaders for use with an openGL 2D rendering context.
+
+    Given a GL-based rendering context, you can write a fragment shader that applies some
+    kind of per-pixel effect.
+
+    @tags{OpenGL}
+*/
+struct JUCE_API  OpenGLGraphicsContextCustomShader
+{
+    /** Creates a custom shader.
+
+        The shader code will not be compiled until actually needed, so it's OK to call this
+        constructor when no GL context is active.
+
+        The code should be a normal fragment shader. As well as the usual GLSL variables, there is
+        also an automatically declared varying vec2 called "pixelPos", which indicates the pixel
+        position within the graphics context of the pixel being drawn. There is also a varying value
+        "pixelAlpha", which indicates the alpha by which the pixel should be multiplied, so that the
+        edges of any clip-region masks are anti-aliased correctly.
+    */
+    OpenGLGraphicsContextCustomShader (const String& fragmentShaderCode);
+
+    /** Destructor. */
+    ~OpenGLGraphicsContextCustomShader();
+
+    /** Returns the program, if it has been linked and is active.
+        This can be called when you're about to use fillRect, to set up any uniforms/textures that
+        the program may require.
+    */
+    OpenGLShaderProgram* getProgram (LowLevelGraphicsContext&) const;
+
+    /** Applies the shader to a rectangle within the graphics context. */
+    void fillRect (LowLevelGraphicsContext&, Rectangle<int> area) const;
+
+    /** Attempts to compile the program if necessary, and returns an error message if it fails. */
+    Result checkCompilation (LowLevelGraphicsContext&);
+
+    /** Returns the code that was used to create this object. */
+    const String& getFragmentShaderCode() const noexcept           { return code; }
+
+    /** Optional lambda that will be called when the shader is activated, to allow
+        user code to do setup tasks.
+    */
+    std::function<void (OpenGLShaderProgram&)> onShaderActivated;
+
+private:
+    String code, hashName;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (OpenGLGraphicsContextCustomShader)
+};
+
+} // namespace juce