initial appkit window/glcontext implementation

include/boo.hpp

@@ -1,21 +1,7 @@
 #ifndef BOO_HPP
 #define BOO_HPP
 
-#if defined(_WIN32)
-#include "win/CWGLContext.hpp"
-namespace boo {typedef CWGLContext CGraphicsContext;}
-
-#elif defined(__APPLE__)
-#include "mac/CCGLContext.hpp"
-namespace boo {typedef CCGLContext CGraphicsContext;}
-
-#elif defined(__GNUC__) || defined(__clang__)
-#include "x11/CGLXContext.hpp"
-namespace boo {typedef CGLXContext CGraphicsContext;}
-
-#endif
-
-#include "IGraphicsContext.hpp"
+#include "windowsys/IWindow.hpp"
 #include "inputdev/CDeviceFinder.hpp"
 #include "inputdev/CDolphinSmashAdapter.hpp"
 

include/mac/CCGLContext.hpp

@@ -1,34 +0,0 @@
-#ifndef CCGLCONTEXT_HPP
-#define CCGLCONTEXT_HPP
-
-#ifdef __APPLE__
-#include "IGraphicsContext.hpp"
-#include <OpenGL/OpenGL.h>
-
-namespace boo
-{
-
-class CCGLContext final : public IGraphicsContext
-{
-public:
-    CCGLContext();
-    virtual ~CCGLContext();
-    
-    bool create();
-    void setMinVersion  (const int& min) override;
-    void setMajorVersion(const int& maj) override;
-    const std::string version() const override;
-    const std::string name() const override;
-    int depthSize() const override;
-    int redDepth() const override;
-    int greenDepth() const override;
-    int blueDepth() const override;
-private:
-    int m_minVersion;
-    int m_majVersion;
-};
-
-}
-
-#endif // __APPLE__
-#endif // CCGLCONTEXT_HPP

include/windowsys/IGraphicsContext.hpp

@@ -0,0 +1,52 @@
+#ifndef IGRAPHICSCONTEXT_HPP
+#define IGRAPHICSCONTEXT_HPP
+
+namespace boo
+{
+
+class IGraphicsContext
+{
+public:
+    
+    enum EGraphicsAPI
+    {
+        API_NONE       = 0,
+        API_OPENGL_3_3 = 1,
+        API_OPENGL_4_2 = 2,
+        API_OPENGLES_3 = 3,
+        API_VULKAN     = 4,
+        API_D3D11      = 5,
+        API_METAL      = 6
+    };
+    
+    enum EPixelFormat
+    {
+        PF_NONE        = 0,
+        PF_RGBA8       = 1, /* Default */
+        PF_RGBA8_Z24   = 2,
+        PF_RGBAF32     = 3,
+        PF_RGBAF32_Z24 = 4
+    };
+    
+    virtual ~IGraphicsContext() {}
+    
+    virtual EGraphicsAPI getAPI() const=0;
+    virtual EPixelFormat getPixelFormat() const=0;
+    virtual void setPixelFormat(EPixelFormat pf)=0;
+    virtual void setPlatformWindowHandle(void* handle)=0;
+    virtual void initializeContext()=0;
+    virtual IGraphicsContext* makeShareContext() const=0;
+    virtual void makeCurrent()=0;
+    virtual void clearCurrent()=0;
+
+    /* Note: *all* contexts are double-buffered with
+     * v-sync interval; please call this */
+    virtual void swapBuffer()=0;
+    
+};
+    
+IGraphicsContext* IGraphicsContextNew(IGraphicsContext::EGraphicsAPI api);
+    
+}
+
+#endif // IGRAPHICSCONTEXT_HPP

include/windowsys/IWindow.hpp

@@ -0,0 +1,34 @@
+#ifndef IWINDOW_HPP
+#define IWINDOW_HPP
+
+#include <string>
+
+namespace boo
+{
+
+class IWindow
+{
+public:
+    
+    virtual ~IWindow() {}
+    
+    virtual void showWindow()=0;
+    virtual void hideWindow()=0;
+    
+    virtual std::string getTitle()=0;
+    virtual void setTitle(const std::string& title)=0;
+
+    virtual void setWindowFrameDefault()=0;
+    virtual void getWindowFrame(float& xOut, float& yOut, float& wOut, float& hOut) const=0;
+    virtual void setWindowFrame(float x, float y, float w, float h)=0;
+    
+    virtual bool isFullscreen() const=0;
+    virtual void setFullscreen(bool fs)=0;
+    
+};
+    
+IWindow* IWindowNew();
+    
+}
+
+#endif // IWINDOW_HPP

libBoo.pri

@@ -1,12 +1,7 @@
 HEADERS += \
     $$PWD/include/boo.hpp \
-    $$PWD/include/IGraphicsContext.hpp \
-    $$PWD/include/ISurface.hpp \
-    $$PWD/include/CSurface.hpp \
-    $$PWD/include/IRetraceWaiter.hpp \
-    $$PWD/include/IInputWaiter.hpp \
-    $$PWD/include/CInputRelay.hpp \
-    $$PWD/include/CInputDeferredRelay.hpp \
+    $$PWD/include/windowsys/IWindow.hpp \
+    $$PWD/include/windowsys/IGraphicsContext.hpp \
     $$PWD/include/inputdev/CDolphinSmashAdapter.hpp \
     $$PWD/include/inputdev/CRevolutionPad.hpp \
     $$PWD/include/inputdev/CCafeProPad.hpp \
@@ -36,7 +31,6 @@ SOURCES += \
 unix:!macx {
     HEADERS += \
         $$PWD/include/x11/CGLXContext.hpp
-
     SOURCES += \
         $$PWD/src/x11/CGLXContext.cpp
 }
@@ -45,21 +39,17 @@ linux {
     SOURCES += \
         $$PWD/src/inputdev/CHIDListenerUdev.cpp \
         $$PWD/src/inputdev/CHIDDeviceUdev.cpp
-
     LIBS += -ludev
 }
 
 macx {
-    HEADERS += \
-        $$PWD/include/mac/CCGLContext.hpp
-
     SOURCES += \
-        $$PWD/src/mac/CCGLContext.cpp \
         $$PWD/src/inputdev/CHIDDeviceIOKit.cpp \
         $$PWD/src/inputdev/CHIDListenerIOKit.cpp
-
     OBJECTIVE_SOURCES += \
-        $$PWD/src/mac/CCGLCocoaView.mm
+        $$PWD/src/windowsys/CWindowCocoa.mm \
+        $$PWD/src/windowsys/CGraphicsContextCocoa.mm
+    LIBS += -framework AppKit
 }
 
 win32 {

src/mac/CCGLContext.cpp

@@ -1,67 +0,0 @@
-#ifdef __APPLE__
-#include "CCGLContext.hpp"
-#include <iostream>
-
-namespace boo
-{
-
-CCGLContext::CCGLContext()
-    : m_minVersion(3),
-      m_majVersion(3)
-{
-    std::cout << "Hello from CGL" << std::endl;
-}
-
-CCGLContext::~CCGLContext()
-{
-    
-}
-
-bool CCGLContext::create()
-{
-    return true;
-}
-
-void CCGLContext::setMinVersion(const int& min)
-{
-    m_minVersion = min;
-}
-
-void CCGLContext::setMajorVersion(const int& maj)
-{
-    m_majVersion = maj;
-}
-
-const std::string CCGLContext::version() const
-{
-    return "Invalid version";
-}
-
-const std::string CCGLContext::name() const
-{
-    return "GLX Context";
-}
-
-int CCGLContext::depthSize() const
-{
-    return -1;
-}
-
-int CCGLContext::redDepth() const
-{
-    return -1;
-}
-
-int CCGLContext::greenDepth() const
-{
-    return -1;
-}
-
-int CCGLContext::blueDepth() const
-{
-    return -1;
-}
-    
-}
-
-#endif

src/windowsys/CGraphicsContextCocoa.mm

@@ -0,0 +1,207 @@
+#import <AppKit/AppKit.h>
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/gl3.h>
+#include "windowsys/IGraphicsContext.hpp"
+
+static const NSOpenGLPixelFormatAttribute PF_RGBA8_ATTRS[] =
+{
+    NSOpenGLPFAAccelerated,
+    NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
+    NSOpenGLPFADoubleBuffer,
+    NSOpenGLPFAColorSize, 24,
+    NSOpenGLPFAAlphaSize, 8,
+};
+
+static const NSOpenGLPixelFormatAttribute PF_RGBA8_Z24_ATTRS[] =
+{
+    NSOpenGLPFAAccelerated,
+    NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
+    NSOpenGLPFADoubleBuffer,
+    NSOpenGLPFAColorSize, 24,
+    NSOpenGLPFAAlphaSize, 8,
+    NSOpenGLPFADepthSize, 24,
+};
+
+static const NSOpenGLPixelFormatAttribute PF_RGBAF32_ATTRS[] =
+{
+    NSOpenGLPFAAccelerated,
+    NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
+    NSOpenGLPFADoubleBuffer,
+    NSOpenGLPFAColorFloat,
+    NSOpenGLPFAColorSize, 96,
+    NSOpenGLPFAAlphaSize, 32,
+};
+
+static const NSOpenGLPixelFormatAttribute PF_RGBAF32_Z24_ATTRS[] =
+{
+    NSOpenGLPFAAccelerated,
+    NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core,
+    NSOpenGLPFADoubleBuffer,
+    NSOpenGLPFAColorFloat,
+    NSOpenGLPFAColorSize, 96,
+    NSOpenGLPFAAlphaSize, 32,
+    NSOpenGLPFADepthSize, 24,
+};
+
+static const NSOpenGLPixelFormatAttribute* PF_TABLE[] =
+{
+    NULL,
+    PF_RGBA8_ATTRS,
+    PF_RGBA8_Z24_ATTRS,
+    PF_RGBAF32_ATTRS,
+    PF_RGBAF32_Z24_ATTRS
+};
+
+namespace boo {class CGraphicsContextCocoa;}
+@interface CGraphicsContextCocoaInternal : NSOpenGLView
+- (id)initWithBooContext:(boo::CGraphicsContextCocoa*)bctx;
+@end
+
+namespace boo
+{
+    
+class CGraphicsContextCocoa final : public IGraphicsContext
+{
+    
+    EGraphicsAPI m_api;
+    EPixelFormat m_pf;
+    NSWindow* m_parentWindow;
+    CGraphicsContextCocoaInternal* m_nsContext;
+    NSOpenGLContext* m_nsShareContext;
+    
+public:
+    CGraphicsContextCocoa(EGraphicsAPI api)
+    : m_api(api),
+      m_pf(PF_RGBA8),
+      m_parentWindow(NULL),
+      m_nsContext(NULL),
+      m_nsShareContext(NULL)
+    {}
+    
+    ~CGraphicsContextCocoa()
+    {
+        [m_nsContext release];
+        [m_nsShareContext release];
+    }
+    
+    EGraphicsAPI getAPI() const
+    {
+        return m_api;
+    }
+    
+    EPixelFormat getPixelFormat() const
+    {
+        return m_pf;
+    }
+    
+    void setPixelFormat(EPixelFormat pf)
+    {
+        if (pf > PF_RGBAF32_Z24)
+            return;
+        m_pf = pf;
+    }
+    
+    void setPlatformWindowHandle(void* handle)
+    {
+        m_parentWindow = (NSWindow*)handle;
+    }
+    
+    void initializeContext()
+    {
+        if (m_nsShareContext)
+            return;
+        m_nsContext = [[CGraphicsContextCocoaInternal alloc] initWithBooContext:this];
+        [m_parentWindow setContentView:m_nsContext];
+    }
+    
+    IGraphicsContext* makeShareContext() const
+    {
+        NSOpenGLContext* nsctx;
+        if (m_nsContext)
+        {
+            nsctx = [[NSOpenGLContext alloc] initWithFormat:[m_nsContext pixelFormat]
+                                               shareContext:[m_nsContext openGLContext]];
+        }
+        else if (m_nsShareContext)
+        {
+            nsctx = [[NSOpenGLContext alloc] initWithFormat:[m_nsShareContext pixelFormat]
+                                               shareContext:m_nsShareContext];
+        }
+        else
+            return NULL;
+        if (!nsctx)
+            return NULL;
+        CGraphicsContextCocoa* newCtx = new CGraphicsContextCocoa(m_api);
+        newCtx->m_nsShareContext = nsctx;
+        return newCtx;
+    }
+    
+    void makeCurrent()
+    {
+        if (m_nsContext)
+            [[m_nsContext openGLContext] makeCurrentContext];
+        else if (m_nsShareContext)
+            [m_nsShareContext makeCurrentContext];
+    }
+    
+    void clearCurrent()
+    {
+        [NSOpenGLContext clearCurrentContext];
+    }
+    
+    void swapBuffer()
+    {
+        [[m_nsContext openGLContext] flushBuffer];
+    }
+    
+};
+    
+IGraphicsContext* IGraphicsContextNew(IGraphicsContext::EGraphicsAPI api)
+{
+    if (api != IGraphicsContext::API_OPENGL_3_3 && api != IGraphicsContext::API_OPENGL_4_2)
+        return NULL;
+    
+    /* Create temporary context to query GL version */
+    NSOpenGLPixelFormat* nspf = [[NSOpenGLPixelFormat alloc] initWithAttributes:PF_RGBA8_ATTRS];
+    if (!nspf)
+        return NULL;
+    NSOpenGLContext* nsctx = [[NSOpenGLContext alloc] initWithFormat:nspf shareContext:nil];
+    [nspf release];
+    if (!nsctx)
+        return NULL;
+    [nsctx makeCurrentContext];
+    const char* glVersion = (char*)glGetString(GL_VERSION);
+    unsigned major = 0;
+    unsigned minor = 0;
+    if (glVersion)
+    {
+        major = glVersion[0] - '0';
+        minor = glVersion[2] - '0';
+    }
+    [NSOpenGLContext clearCurrentContext];
+    [nsctx release];
+    if (!glVersion)
+        return NULL;
+    
+    if (major > 4 || (major == 4 && minor >= 2))
+        api = IGraphicsContext::API_OPENGL_4_2;
+    else if (major == 3 && minor >= 3)
+        if (api == IGraphicsContext::API_OPENGL_4_2)
+            return NULL;
+
+    return new CGraphicsContextCocoa(api);
+}
+
+}
+
+@implementation CGraphicsContextCocoaInternal
+- (id)initWithBooContext:(boo::CGraphicsContextCocoa*)bctx
+{
+    boo::IGraphicsContext::EPixelFormat pf = bctx->getPixelFormat();
+    NSOpenGLPixelFormat* nspf = [[NSOpenGLPixelFormat alloc] initWithAttributes:PF_TABLE[pf]];
+    self = [self initWithFrame:NSMakeRect(0, 0, 100, 100) pixelFormat:nspf];
+    [nspf release];
+    return self;
+}
+@end
+

src/windowsys/CWindowCocoa.mm

@@ -0,0 +1,102 @@
+#import <AppKit/AppKit.h>
+#include "windowsys/IWindow.hpp"
+#include "windowsys/IGraphicsContext.hpp"
+
+@interface CWindowCocoaInternal : NSWindow
+@end
+
+namespace boo
+{
+
+class CWindowCocoa final : public IWindow
+{
+    
+    CWindowCocoaInternal* m_nsWindow;
+    IGraphicsContext* m_gfxCtx;
+    
+public:
+    CWindowCocoa()
+    {
+        m_nsWindow = [CWindowCocoaInternal new];
+        m_gfxCtx = IGraphicsContextNew(IGraphicsContext::API_OPENGL_3_3);
+        m_gfxCtx->setPlatformWindowHandle(m_nsWindow);
+        m_gfxCtx->initializeContext();
+    }
+    
+    ~CWindowCocoa()
+    {
+        [m_nsWindow orderOut:nil];
+        [m_nsWindow release];
+        delete m_gfxCtx;
+    }
+    
+    void showWindow()
+    {
+        [m_nsWindow makeKeyAndOrderFront:nil];
+    }
+    
+    void hideWindow()
+    {
+        [m_nsWindow orderOut:nil];
+    }
+    
+    std::string getTitle()
+    {
+        return [[m_nsWindow title] UTF8String];
+    }
+    
+    void setTitle(const std::string& title)
+    {
+        [m_nsWindow setTitle:[NSString stringWithUTF8String:title.c_str()]];
+    }
+    
+    void setWindowFrameDefault()
+    {
+        NSScreen* mainScreen = [NSScreen mainScreen];
+        NSRect scrFrame = mainScreen.frame;
+        float x_off = scrFrame.size.width / 3.0;
+        float y_off = scrFrame.size.height / 3.0;
+        [m_nsWindow setFrame:NSMakeRect(x_off, y_off, x_off * 2.0, y_off * 2.0) display:NO];
+    }
+    
+    void getWindowFrame(float& xOut, float& yOut, float& wOut, float& hOut) const
+    {
+        NSRect wFrame = m_nsWindow.frame;
+        xOut = wFrame.origin.x;
+        yOut = wFrame.origin.y;
+        wOut = wFrame.size.width;
+        hOut = wFrame.size.height;
+    }
+    
+    void setWindowFrame(float x, float y, float w, float h)
+    {
+        NSRect wFrame = NSMakeRect(x, y, w, h);
+        [m_nsWindow setFrame:wFrame display:NO];
+    }
+    
+    bool isFullscreen() const
+    {
+        return ([m_nsWindow styleMask] & NSFullScreenWindowMask) == NSFullScreenWindowMask;
+    }
+    
+    void setFullscreen(bool fs)
+    {
+        if ((fs && !isFullscreen()) || (!fs && isFullscreen()))
+            [m_nsWindow toggleFullScreen:nil];
+    }
+    
+};
+    
+IWindow* IWindowNew()
+{
+    return new CWindowCocoa;
+}
+    
+}
+
+@implementation CWindowCocoaInternal
+{
+    
+}
+@end
+