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OpenGL: Add GLEW-inspired dynamic function loading

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This commit is contained in:
reuk 2021-05-19 14:47:35 +01:00
parent 8a6a520026
commit 54423f6583
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21 changed files with 23934 additions and 525 deletions
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73
modules/juce_opengl/juce_opengl.cpp
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@ -41,6 +41,20 @@
#include "juce_opengl.h"
#define JUCE_STATIC_LINK_GL_VERSION_1_0 1
#define JUCE_STATIC_LINK_GL_VERSION_1_1 1
#define JUCE_STATIC_LINK_GL_ES_VERSION_2_0 1
#if !JUCE_ANDROID || JUCE_ANDROID_GL_ES_VERSION_3_0
#define JUCE_STATIC_LINK_GL_ES_VERSION_3_0 1
#endif
#if JUCE_OPENGL_ES
#include "opengl/juce_gles2.cpp"
#else
#include "opengl/juce_gl.cpp"
#endif
//==============================================================================
#if JUCE_IOS
#import <QuartzCore/QuartzCore.h>
@ -69,63 +83,27 @@
//==============================================================================
#elif JUCE_ANDROID
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES 1
#endif
#if JUCE_ANDROID_GL_ES_VERSION_3_0
#include <GLES3/gl3.h>
// workaround for a bug in SDK 18 and 19
// see: https://stackoverflow.com/questions/31003863/gles-3-0-including-gl2ext-h
#define __gl2_h_
#include <GLES2/gl2ext.h>
#else
#include <GLES2/gl2.h>
#endif
#include <android/native_window.h>
#include <android/native_window_jni.h>
#include <EGL/egl.h>
#endif
//==============================================================================
namespace juce
{
using namespace ::juce::gl;
void OpenGLExtensionFunctions::initialise()
{
#if JUCE_WINDOWS || JUCE_LINUX || JUCE_BSD
#define JUCE_INIT_GL_FUNCTION(name, returnType, params, callparams) \
name = (type_ ## name) OpenGLHelpers::getExtensionFunction (#name);
JUCE_GL_BASE_FUNCTIONS (JUCE_INIT_GL_FUNCTION)
#undef JUCE_INIT_GL_FUNCTION
#define JUCE_INIT_GL_FUNCTION(name, returnType, params, callparams) \
name = (type_ ## name) OpenGLHelpers::getExtensionFunction (#name); \
if (name == nullptr) \
name = (type_ ## name) OpenGLHelpers::getExtensionFunction (JUCE_STRINGIFY (name ## EXT));
JUCE_GL_EXTENSION_FUNCTIONS (JUCE_INIT_GL_FUNCTION)
#if JUCE_OPENGL3
JUCE_GL_VERTEXBUFFER_FUNCTIONS (JUCE_INIT_GL_FUNCTION)
#endif
#undef JUCE_INIT_GL_FUNCTION
#endif
gl::loadFunctions();
}
#if JUCE_OPENGL_ES
#define JUCE_DECLARE_GL_FUNCTION(name, returnType, params, callparams) \
returnType OpenGLExtensionFunctions::name params noexcept { return ::name callparams; }
JUCE_GL_BASE_FUNCTIONS (JUCE_DECLARE_GL_FUNCTION)
JUCE_GL_EXTENSION_FUNCTIONS (JUCE_DECLARE_GL_FUNCTION)
#if JUCE_OPENGL3
JUCE_GL_VERTEXBUFFER_FUNCTIONS (JUCE_DECLARE_GL_FUNCTION)
#endif
#undef JUCE_DECLARE_GL_FUNCTION
#endif
#undef JUCE_GL_EXTENSION_FUNCTIONS
#define X(name) decltype (::juce::gl::name)& OpenGLExtensionFunctions::name = ::juce::gl::name;
JUCE_GL_BASE_FUNCTIONS
JUCE_GL_EXTENSION_FUNCTIONS
JUCE_GL_VERTEXBUFFER_FUNCTIONS
#undef X
#if JUCE_DEBUG && ! defined (JUCE_CHECK_OPENGL_ERROR)
static const char* getGLErrorMessage (const GLenum e) noexcept
@ -271,6 +249,7 @@ private:
#endif
#elif JUCE_WINDOWS
#include "opengl/juce_wgl.h"
#include "native/juce_OpenGL_win32.h"
#elif JUCE_LINUX || JUCE_BSD