80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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A set of miscellaneous openGL helper functions.
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@tags{OpenGL}
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*/
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class JUCE_API OpenGLHelpers
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{
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public:
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/** Clears the GL error state. */
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static void resetErrorState();
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/** Returns true if the current thread has an active OpenGL context. */
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static bool isContextActive();
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/** Clears the current context using the given colour. */
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static void clear (Colour colour);
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static void enableScissorTest (Rectangle<int> clip);
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/** Checks whether the current context supports the specified extension. */
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static bool isExtensionSupported (const char* extensionName);
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/** Returns the address of a named GL extension function */
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static void* getExtensionFunction (const char* functionName);
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/** Returns a version string such as "#version 150" suitable for prefixing a GLSL
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shader on this platform.
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*/
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static String getGLSLVersionString();
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/** Makes some simple textual changes to a shader program to try to convert old GLSL
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keywords to their v3 equivalents.
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Before doing this, the function will check whether the current context is actually
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using a later version of the language, and if not it will not make any changes.
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Obviously this is not a real parser, so will only work on simple code!
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*/
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static String translateVertexShaderToV3 (const String&);
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/** Makes some simple textual changes to a shader program to try to convert old GLSL
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keywords to their v3 equivalents.
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Before doing this, the function will check whether the current context is actually
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using a later version of the language, and if not it will not make any changes.
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Obviously this is not a real parser, so will only work on simple code!
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*/
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static String translateFragmentShaderToV3 (const String&);
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};
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} // namespace juce
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