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88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE 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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