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73 lines
2.8 KiB
C++
73 lines
2.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef JUCE_OPENGLHELPERS_H_INCLUDED
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#define JUCE_OPENGLHELPERS_H_INCLUDED
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//==============================================================================
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/**
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A set of miscellaneous openGL helper functions.
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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 (const 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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/** 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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#endif // JUCE_OPENGLHELPERS_H_INCLUDED
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