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- /*
- ==============================================================================
-
- This file is part of the JUCE library - "Jules' Utility Class Extensions"
- Copyright 2004-11 by Raw Material Software Ltd.
-
- ------------------------------------------------------------------------------
-
- JUCE can be redistributed and/or modified under the terms of the GNU General
- Public License (Version 2), as published by the Free Software Foundation.
- A copy of the license is included in the JUCE distribution, or can be found
- online at www.gnu.org/licenses.
-
- JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
- ------------------------------------------------------------------------------
-
- To release a closed-source product which uses JUCE, commercial licenses are
- available: visit www.rawmaterialsoftware.com/juce for more information.
-
- ==============================================================================
- */
-
- namespace
- {
-
- #if JUCE_WINDOWS
- #define JUCE_DECLARE_GL_EXTENSION_FUNCTION(name, returnType, params) \
- typedef returnType (__stdcall *type_ ## name) params; static type_ ## name name = nullptr;
- #else
- #define JUCE_DECLARE_GL_EXTENSION_FUNCTION(name, returnType, params) \
- typedef returnType (*type_ ## name) params; static type_ ## name name = nullptr;
- #endif
-
- #ifndef GL_BGRA_EXT
- enum { GL_BGRA_EXT = 0x80e1 };
- #endif
-
- #ifndef GL_CLAMP_TO_EDGE
- enum { GL_CLAMP_TO_EDGE = 0x812f };
- #endif
-
- #ifndef GL_RGBA8
- #define GL_RGBA8 GL_RGBA
- #endif
-
- #ifndef GL_DEPTH24_STENCIL8
- #define GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_OES
- #endif
-
- #if JUCE_WINDOWS
-
- enum
- {
- WGL_NUMBER_PIXEL_FORMATS_ARB = 0x2000,
- WGL_DRAW_TO_WINDOW_ARB = 0x2001,
- WGL_ACCELERATION_ARB = 0x2003,
- WGL_SWAP_METHOD_ARB = 0x2007,
- WGL_SUPPORT_OPENGL_ARB = 0x2010,
- WGL_PIXEL_TYPE_ARB = 0x2013,
- WGL_DOUBLE_BUFFER_ARB = 0x2011,
- WGL_COLOR_BITS_ARB = 0x2014,
- WGL_RED_BITS_ARB = 0x2015,
- WGL_GREEN_BITS_ARB = 0x2017,
- WGL_BLUE_BITS_ARB = 0x2019,
- WGL_ALPHA_BITS_ARB = 0x201B,
- WGL_DEPTH_BITS_ARB = 0x2022,
- WGL_STENCIL_BITS_ARB = 0x2023,
- WGL_FULL_ACCELERATION_ARB = 0x2027,
- WGL_ACCUM_RED_BITS_ARB = 0x201E,
- WGL_ACCUM_GREEN_BITS_ARB = 0x201F,
- WGL_ACCUM_BLUE_BITS_ARB = 0x2020,
- WGL_ACCUM_ALPHA_BITS_ARB = 0x2021,
- WGL_STEREO_ARB = 0x2012,
- WGL_SAMPLE_BUFFERS_ARB = 0x2041,
- WGL_SAMPLES_ARB = 0x2042,
- WGL_TYPE_RGBA_ARB = 0x202B,
-
- GL_OPERAND0_RGB = 0x8590,
- GL_OPERAND1_RGB = 0x8591,
- GL_OPERAND0_ALPHA = 0x8598,
- GL_OPERAND1_ALPHA = 0x8599,
- GL_SRC0_RGB = 0x8580,
- GL_SRC1_RGB = 0x8581,
- GL_SRC0_ALPHA = 0x8588,
- GL_SRC1_ALPHA = 0x8589,
- GL_TEXTURE0 = 0x84C0,
- GL_TEXTURE1 = 0x84C1,
- GL_TEXTURE2 = 0x84C2,
- GL_COMBINE = 0x8570,
- GL_COMBINE_RGB = 0x8571,
- GL_COMBINE_ALPHA = 0x8572,
- GL_PREVIOUS = 0x8578,
- GL_COMPILE_STATUS = 0x8B81,
- GL_LINK_STATUS = 0x8B82,
- GL_SHADING_LANGUAGE_VERSION = 0x8B8C,
- GL_FRAGMENT_SHADER = 0x8B30,
- GL_VERTEX_SHADER = 0x8B31,
- GL_FRAMEBUFFER = 0x8D40,
- GL_RENDERBUFFER = 0x8D41,
- GL_FRAMEBUFFER_BINDING = 0x8CA6,
- GL_COLOR_ATTACHMENT0 = 0x8CE0,
- GL_DEPTH_ATTACHMENT = 0x8D00,
- GL_STENCIL_ATTACHMENT = 0x8D20,
- GL_FRAMEBUFFER_COMPLETE = 0x8CD5,
- GL_DEPTH24_STENCIL8 = 0x88F0,
- GL_RENDERBUFFER_DEPTH_SIZE = 0x8D54
- };
-
- typedef char GLchar;
-
- #define WGL_FUNCTION_LIST(USE_FUNCTION) \
- USE_FUNCTION (wglChoosePixelFormatARB, BOOL, (HDC, const int*, const FLOAT*, UINT, int*, UINT*))\
- USE_FUNCTION (wglSwapIntervalEXT, BOOL, (int))\
- USE_FUNCTION (wglGetSwapIntervalEXT, int, ())\
-
- WGL_FUNCTION_LIST (JUCE_DECLARE_GL_EXTENSION_FUNCTION)
- #endif
-
- #if JUCE_WINDOWS || JUCE_LINUX
-
- #define GL_EXTENSIONS_LIST(USE_FUNCTION) \
- USE_FUNCTION (glActiveTexture, void, (GLenum))\
- USE_FUNCTION (glClientActiveTexture, void, (GLenum))\
- USE_FUNCTION (glCreateProgram, GLuint, ())\
- USE_FUNCTION (glDeleteProgram, void, (GLuint))\
- USE_FUNCTION (glCreateShader, GLuint, (GLenum))\
- USE_FUNCTION (glDeleteShader, void, (GLuint))\
- USE_FUNCTION (glShaderSource, void, (GLuint, GLsizei, const GLchar**, const GLint*))\
- USE_FUNCTION (glCompileShader, void, (GLuint))\
- USE_FUNCTION (glAttachShader, void, (GLuint, GLuint))\
- USE_FUNCTION (glLinkProgram, void, (GLuint))\
- USE_FUNCTION (glUseProgram, void, (GLuint))\
- USE_FUNCTION (glGetShaderiv, void, (GLuint, GLenum, GLint*))\
- USE_FUNCTION (glGetShaderInfoLog, void, (GLuint, GLsizei, GLsizei*, GLchar*))\
- USE_FUNCTION (glGetProgramiv, void, (GLuint, GLenum, GLint*))\
- USE_FUNCTION (glGetUniformLocation, GLint, (GLuint, const GLchar*))\
- USE_FUNCTION (glUniform1f, void, (GLint, GLfloat))\
- USE_FUNCTION (glUniform1i, void, (GLint, GLint))\
- USE_FUNCTION (glUniform2f, void, (GLint, GLfloat, GLfloat))\
- USE_FUNCTION (glUniform3f, void, (GLint, GLfloat, GLfloat, GLfloat))\
- USE_FUNCTION (glUniform4f, void, (GLint, GLfloat, GLfloat, GLfloat, GLfloat))\
- USE_FUNCTION (glUniform4i, void, (GLint, GLint, GLint, GLint, GLint))\
- USE_FUNCTION (glUniform1fv, void, (GLint, GLsizei, const GLfloat*))\
- USE_FUNCTION (glIsRenderbuffer, GLboolean, (GLuint))\
- USE_FUNCTION (glBindRenderbuffer, void, (GLenum, GLuint))\
- USE_FUNCTION (glDeleteRenderbuffers, void, (GLsizei, const GLuint*))\
- USE_FUNCTION (glGenRenderbuffers, void, (GLsizei, GLuint*))\
- USE_FUNCTION (glRenderbufferStorage, void, (GLenum, GLenum, GLsizei, GLsizei))\
- USE_FUNCTION (glGetRenderbufferParameteriv, void, (GLenum, GLenum, GLint*))\
- USE_FUNCTION (glIsFramebuffer, GLboolean, (GLuint))\
- USE_FUNCTION (glBindFramebuffer, void, (GLenum, GLuint))\
- USE_FUNCTION (glDeleteFramebuffers, void, (GLsizei, const GLuint*))\
- USE_FUNCTION (glGenFramebuffers, void, (GLsizei, GLuint*))\
- USE_FUNCTION (glCheckFramebufferStatus, GLenum, (GLenum))\
- USE_FUNCTION (glFramebufferTexture1D, void, (GLenum, GLenum, GLenum, GLuint, GLint))\
- USE_FUNCTION (glFramebufferTexture2D, void, (GLenum, GLenum, GLenum, GLuint, GLint))\
- USE_FUNCTION (glFramebufferTexture3D, void, (GLenum, GLenum, GLenum, GLuint, GLint, GLint))\
- USE_FUNCTION (glFramebufferRenderbuffer, void, (GLenum, GLenum, GLenum, GLuint))\
- USE_FUNCTION (glGetFramebufferAttachmentParameteriv, void, (GLenum, GLenum, GLenum, GLint*))\
-
- GL_EXTENSIONS_LIST (JUCE_DECLARE_GL_EXTENSION_FUNCTION)
-
- void initialiseGLExtensions()
- {
- if (glActiveTexture == nullptr)
- {
- #define FIND_FUNCTION(name, returnType, params) name = (type_ ## name) OpenGLHelpers::getExtensionFunction (#name);
-
- #if JUCE_WINDOWS
- WGL_FUNCTION_LIST (FIND_FUNCTION)
- #endif
- GL_EXTENSIONS_LIST (FIND_FUNCTION)
-
- #undef FIND_FUNCTION
- }
- }
-
- #undef GL_EXTENSIONS_LIST
- #undef WGL_FUNCTION_LIST
-
- #else
- void initialiseGLExtensions() {}
- #endif
-
- }
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