294 lines
8.7 KiB
C++
294 lines
8.7 KiB
C++
|
/*
|
||
|
|
==============================================================================
|
||
|
|
|
||
|
|
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"
|