From bca8180f522a9e726f7d0d898e612fd901da392b Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Sat, 14 Nov 2015 22:15:02 -0800
Subject: [PATCH] [Renderer] Define a FrameRenderer

This protocol is a delegate of the view/window/whatever that is running the
animation timer. When its renderAtTime() method is called, the rendering surface
should be fully prepared for drawing commands.
---
 Renderer/Renderer.xcodeproj/project.pbxproj |  6 ++++++
 Renderer/Renderer/Renderer.swift            | 15 +++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 Renderer/Renderer/Renderer.swift

diff --git a/Renderer/Renderer.xcodeproj/project.pbxproj b/Renderer/Renderer.xcodeproj/project.pbxproj
index 35a09a2..39f1b4f 100644
--- a/Renderer/Renderer.xcodeproj/project.pbxproj
+++ b/Renderer/Renderer.xcodeproj/project.pbxproj
@@ -11,6 +11,7 @@
 		C0B61B9E1BF70FD200B91C36 /* Renderer.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C0B61B931BF70FD200B91C36 /* Renderer.framework */; };
 		C0B61BA31BF70FD200B91C36 /* RendererTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = C0B61BA21BF70FD200B91C36 /* RendererTests.swift */; };
 		C0B61BAF1BF70FE800B91C36 /* OpenGLView.swift in Sources */ = {isa = PBXBuildFile; fileRef = C0B61BAE1BF70FE800B91C36 /* OpenGLView.swift */; };
+		C0B61BB11BF8085B00B91C36 /* Renderer.swift in Sources */ = {isa = PBXBuildFile; fileRef = C0B61BB01BF8085B00B91C36 /* Renderer.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -31,6 +32,7 @@
 		C0B61BA21BF70FD200B91C36 /* RendererTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RendererTests.swift; sourceTree = "<group>"; };
 		C0B61BA41BF70FD200B91C36 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		C0B61BAE1BF70FE800B91C36 /* OpenGLView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OpenGLView.swift; sourceTree = "<group>"; };
+		C0B61BB01BF8085B00B91C36 /* Renderer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Renderer.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -76,6 +78,7 @@
 			children = (
 				C0B61B961BF70FD200B91C36 /* Renderer.h */,
 				C0B61B981BF70FD200B91C36 /* Info.plist */,
+				C0B61BB01BF8085B00B91C36 /* Renderer.swift */,
 			);
 			path = Renderer;
 			sourceTree = "<group>";
@@ -205,6 +208,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				C0B61BB11BF8085B00B91C36 /* Renderer.swift in Sources */,
 				C0B61BAF1BF70FE800B91C36 /* OpenGLView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -394,6 +398,7 @@
 				C0B61BA91BF70FD200B91C36 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
 		};
 		C0B61BAA1BF70FD200B91C36 /* Build configuration list for PBXNativeTarget "RendererTests" */ = {
 			isa = XCConfigurationList;
@@ -402,6 +407,7 @@
 				C0B61BAC1BF70FD200B91C36 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
 	};
diff --git a/Renderer/Renderer/Renderer.swift b/Renderer/Renderer/Renderer.swift
new file mode 100644
index 0000000..dd90b96
--- /dev/null
+++ b/Renderer/Renderer/Renderer.swift
@@ -0,0 +1,15 @@
+//
+//  Renderer.swift
+//  Renderer
+//
+//  Created by Eryn Wells on 11/14/15.
+//  Copyright © 2015 Eryn Wells. All rights reserved.
+//
+
+import CoreVideo
+
+public typealias FrameTimeStamp = CVTimeStamp
+
+public protocol FrameRenderer {
+    func renderAtTime(time: FrameTimeStamp)
+}
\ No newline at end of file