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juicysfplugin/modules/juce_opengl/juce_opengl.cpp

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#ifdef JUCE_OPENGL_H_INCLUDED
/* When you add this cpp file to your project, you mustn't include it in a file where you've
already included any other headers - just put it inside a file on its own, possibly with your config
flags preceding it, but don't include anything else. That also includes avoiding any automatic prefix
header files that the compiler may be using.
*/
#error "Incorrect use of JUCE cpp file"
#endif
#define JUCE_CORE_INCLUDE_OBJC_HELPERS 1
#define JUCE_CORE_INCLUDE_JNI_HELPERS 1
#define JUCE_CORE_INCLUDE_NATIVE_HEADERS 1
#define JUCE_GRAPHICS_INCLUDE_COREGRAPHICS_HELPERS 1
#include "juce_opengl.h"
//==============================================================================
#if JUCE_IOS
#import <QuartzCore/QuartzCore.h>
//==============================================================================
#elif JUCE_WINDOWS
#include <windowsx.h>
#if JUCE_MSVC && ! JUCE_DONT_AUTOLINK_TO_WIN32_LIBRARIES
#pragma comment(lib, "OpenGL32.Lib")
#endif
//==============================================================================
#elif JUCE_LINUX
/* Got an include error here?
If you want to install OpenGL support, the packages to get are "mesa-common-dev"
and "freeglut3-dev".
*/
#include <GL/glx.h>
//==============================================================================
#elif JUCE_MAC
#include <OpenGL/CGLCurrent.h> // These are both just needed with the 10.5 SDK
#include <OpenGL/OpenGL.h>
//==============================================================================
#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
#endif
//==============================================================================
namespace juce
{
void OpenGLExtensionFunctions::initialise()
{
#if JUCE_WINDOWS || JUCE_LINUX
#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
}
#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
#if JUCE_DEBUG && ! defined (JUCE_CHECK_OPENGL_ERROR)
static const char* getGLErrorMessage (const GLenum e) noexcept
{
switch (e)
{
case GL_INVALID_ENUM: return "GL_INVALID_ENUM";
case GL_INVALID_VALUE: return "GL_INVALID_VALUE";
case GL_INVALID_OPERATION: return "GL_INVALID_OPERATION";
case GL_OUT_OF_MEMORY: return "GL_OUT_OF_MEMORY";
#ifdef GL_STACK_OVERFLOW
case GL_STACK_OVERFLOW: return "GL_STACK_OVERFLOW";
#endif
#ifdef GL_STACK_UNDERFLOW
case GL_STACK_UNDERFLOW: return "GL_STACK_UNDERFLOW";
#endif
#ifdef GL_INVALID_FRAMEBUFFER_OPERATION
case GL_INVALID_FRAMEBUFFER_OPERATION: return "GL_INVALID_FRAMEBUFFER_OPERATION";
#endif
default: break;
}
return "Unknown error";
}
#if JUCE_MAC || JUCE_IOS
#ifndef JUCE_IOS_MAC_VIEW
#if JUCE_IOS
#define JUCE_IOS_MAC_VIEW UIView
#define JUCE_IOS_MAC_WINDOW UIWindow
#else
#define JUCE_IOS_MAC_VIEW NSView
#define JUCE_IOS_MAC_WINDOW NSWindow
#endif
#endif
#endif
static bool checkPeerIsValid (OpenGLContext* context)
{
jassert (context != nullptr);
if (context != nullptr)
{
if (auto* comp = context->getTargetComponent())
{
if (auto* peer = comp->getPeer())
{
#if JUCE_MAC || JUCE_IOS
if (auto* nsView = (JUCE_IOS_MAC_VIEW*) peer->getNativeHandle())
{
if (auto* nsWindow = [nsView window])
{
#if JUCE_MAC
return ([nsWindow isVisible]
&& (! [nsWindow hidesOnDeactivate] || [NSApp isActive]));
#else
ignoreUnused (nsWindow);
return true;
#endif
}
}
#else
ignoreUnused (peer);
return true;
#endif
}
}
}
return false;
}
static void checkGLError (const char* file, const int line)
{
for (;;)
{
const GLenum e = glGetError();
if (e == GL_NO_ERROR)
break;
// if the peer is not valid then ignore errors
if (! checkPeerIsValid (OpenGLContext::getCurrentContext()))
continue;
DBG ("***** " << getGLErrorMessage (e) << " at " << file << " : " << line);
jassertfalse;
}
}
#define JUCE_CHECK_OPENGL_ERROR checkGLError (__FILE__, __LINE__);
#else
#define JUCE_CHECK_OPENGL_ERROR ;
#endif
static void clearGLError() noexcept
{
while (glGetError() != GL_NO_ERROR) {}
}
struct OpenGLTargetSaver
{
OpenGLTargetSaver (const OpenGLContext& c) noexcept
: context (c), oldFramebuffer (OpenGLFrameBuffer::getCurrentFrameBufferTarget())
{
glGetIntegerv (GL_VIEWPORT, oldViewport);
}
~OpenGLTargetSaver() noexcept
{
context.extensions.glBindFramebuffer (GL_FRAMEBUFFER, oldFramebuffer);
glViewport (oldViewport[0], oldViewport[1], oldViewport[2], oldViewport[3]);
}
private:
const OpenGLContext& context;
GLuint oldFramebuffer;
GLint oldViewport[4];
OpenGLTargetSaver& operator= (const OpenGLTargetSaver&);
};
} // namespace juce
//==============================================================================
#include "opengl/juce_OpenGLFrameBuffer.cpp"
#include "opengl/juce_OpenGLGraphicsContext.cpp"
#include "opengl/juce_OpenGLHelpers.cpp"
#include "opengl/juce_OpenGLImage.cpp"
#include "opengl/juce_OpenGLPixelFormat.cpp"
#include "opengl/juce_OpenGLShaderProgram.cpp"
#include "opengl/juce_OpenGLTexture.cpp"
//==============================================================================
#if JUCE_MAC || JUCE_IOS
#if JUCE_CLANG
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wundeclared-selector"
#endif
#if JUCE_MAC
#include "native/juce_OpenGL_osx.h"
#else
#include "native/juce_OpenGL_ios.h"
#endif
#if JUCE_CLANG
#pragma clang diagnostic pop
#endif
#elif JUCE_WINDOWS
#include "native/juce_OpenGL_win32.h"
#elif JUCE_LINUX
#include "native/juce_OpenGL_linux_X11.h"
#elif JUCE_ANDROID
#include "native/juce_OpenGL_android.h"
#endif
#include "opengl/juce_OpenGLContext.cpp"
#include "utils/juce_OpenGLAppComponent.cpp"
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