Move GL interface code out of the OpenGL video backend.

Source/Core/Common/GL/GLInterface/AGL.cpp

@@ -0,0 +1,109 @@
+// Copyright 2012 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "Common/GL/GLInterface/AGL.h"
+
+#include "VideoCommon/RenderBase.h"
+#include "VideoCommon/VertexShaderManager.h"
+#include "VideoCommon/VideoConfig.h"
+
+void cInterfaceAGL::Swap()
+{
+	[cocoaCtx flushBuffer];
+}
+
+// Create rendering window.
+// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
+bool cInterfaceAGL::Create(void *window_handle, bool core)
+{
+	cocoaWin = reinterpret_cast<NSView*>(window_handle);
+	NSSize size = [cocoaWin frame].size;
+
+	// Enable high-resolution display support.
+	[cocoaWin setWantsBestResolutionOpenGLSurface:YES];
+
+	NSWindow *window = [cocoaWin window];
+
+	float scale = [window backingScaleFactor];
+	size.width *= scale;
+	size.height *= scale;
+
+	// Control window size and picture scaling
+	s_backbuffer_width = size.width;
+	s_backbuffer_height = size.height;
+
+	NSOpenGLPixelFormatAttribute attr[] = { NSOpenGLPFADoubleBuffer, NSOpenGLPFAOpenGLProfile, core ? NSOpenGLProfileVersion3_2Core : NSOpenGLProfileVersionLegacy, NSOpenGLPFAAccelerated, 0 };
+	NSOpenGLPixelFormat *fmt = [[NSOpenGLPixelFormat alloc]
+		initWithAttributes: attr];
+	if (fmt == nil)
+	{
+		ERROR_LOG(VIDEO, "failed to create pixel format");
+		return false;
+	}
+
+	cocoaCtx = [[NSOpenGLContext alloc] initWithFormat: fmt shareContext: nil];
+	[fmt release];
+	if (cocoaCtx == nil)
+	{
+		ERROR_LOG(VIDEO, "failed to create context");
+		return false;
+	}
+
+	if (cocoaWin == nil)
+	{
+		ERROR_LOG(VIDEO, "failed to create window");
+		return false;
+	}
+
+	[window makeFirstResponder:cocoaWin];
+	[cocoaCtx setView: cocoaWin];
+	[window makeKeyAndOrderFront: nil];
+
+	return true;
+}
+
+bool cInterfaceAGL::MakeCurrent()
+{
+	[cocoaCtx makeCurrentContext];
+	return true;
+}
+
+bool cInterfaceAGL::ClearCurrent()
+{
+	[NSOpenGLContext clearCurrentContext];
+	return true;
+}
+
+// Close backend
+void cInterfaceAGL::Shutdown()
+{
+	[cocoaCtx clearDrawable];
+	[cocoaCtx release];
+	cocoaCtx = nil;
+}
+
+void cInterfaceAGL::Update()
+{
+	NSWindow *window = [cocoaWin window];
+	NSSize size = [cocoaWin frame].size;
+
+	float scale = [window backingScaleFactor];
+	size.width *= scale;
+	size.height *= scale;
+
+	if (s_backbuffer_width == size.width &&
+	    s_backbuffer_height == size.height)
+		return;
+
+	s_backbuffer_width = size.width;
+	s_backbuffer_height = size.height;
+
+	[cocoaCtx update];
+}
+
+void cInterfaceAGL::SwapInterval(int interval)
+{
+	[cocoaCtx setValues:(GLint *)&interval forParameter:NSOpenGLCPSwapInterval];
+}
+