From b00c1335c83be933b96de9464779a0e74c34331d Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <stefano.pigozzi@gmail.com>
Date: Fri, 9 Dec 2011 21:25:05 +0100
Subject: gl_common: cocoa: add OpenGL 3.2 context creation code

Add a new option to the cocoa window creation code in order to decide
which OpenGL context to create.
---
 libvo/cocoa_common.h |  3 ++-
 libvo/cocoa_common.m | 47 +++++++++++++++++++++++++++++++++++++++--------
 libvo/gl_common.c    | 13 ++++++++++++-
 3 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/libvo/cocoa_common.h b/libvo/cocoa_common.h
index 4fbbb32dd9..1330caacc5 100644
--- a/libvo/cocoa_common.h
+++ b/libvo/cocoa_common.h
@@ -10,7 +10,8 @@ void vo_cocoa_update_xinerama_info(struct vo *vo);
 
 int vo_cocoa_change_attributes(struct vo *vo);
 int vo_cocoa_create_window(struct vo *vo, uint32_t d_width,
-                           uint32_t d_height, uint32_t flags);
+                           uint32_t d_height, uint32_t flags,
+                           int gl3profile);
 
 void vo_cocoa_swap_buffers(void);
 int vo_cocoa_check_events(struct vo *vo);
diff --git a/libvo/cocoa_common.m b/libvo/cocoa_common.m
index 5658ecb7bf..4eccf1a320 100644
--- a/libvo/cocoa_common.m
+++ b/libvo/cocoa_common.m
@@ -1,7 +1,7 @@
 #import <Cocoa/Cocoa.h>
 #import <OpenGL/OpenGL.h>
 #import <QuartzCore/QuartzCore.h>
-#import <CoreServices/CoreServices.h> // for CGDisplayHideCursor
+#import <CoreServices/CoreServices.h> // for CGDisplayHideCursor and Gestalt
 #include "cocoa_common.h"
 
 #include "options.h"
@@ -16,6 +16,18 @@
 #include "osx_common.h"
 #include "mp_msg.h"
 
+#ifndef NSOpenGLPFAOpenGLProfile
+#define NSOpenGLPFAOpenGLProfile 99
+#endif
+
+#ifndef NSOpenGLProfileVersionLegacy
+#define NSOpenGLProfileVersionLegacy 0x1000
+#endif
+
+#ifndef NSOpenGLProfileVersion3_2Core
+#define NSOpenGLProfileVersion3_2Core 0x3200
+#endif
+
 #define NSLeftAlternateKeyMask (0x000020 | NSAlternateKeyMask)
 #define NSRightAlternateKeyMask (0x000040 | NSAlternateKeyMask)
 
@@ -66,6 +78,8 @@ void update_screen_info(void);
 void resize_window(struct vo *vo);
 void create_menu(void);
 
+bool is_lion_or_better(void);
+
 struct vo_cocoa_state *vo_cocoa_init_state(void)
 {
     struct vo_cocoa_state *s = talloc_ptrtype(NULL, s);
@@ -142,7 +156,8 @@ void resize_window(struct vo *vo)
 }
 
 int vo_cocoa_create_window(struct vo *vo, uint32_t d_width,
-                           uint32_t d_height, uint32_t flags)
+                           uint32_t d_height, uint32_t flags,
+                           int gl3profile)
 {
     if (s->current_video_size.width > 0 || s->current_video_size.height > 0)
         s->previous_video_size = s->current_video_size;
@@ -155,13 +170,18 @@ int vo_cocoa_create_window(struct vo *vo, uint32_t d_width,
 
         GLMPlayerOpenGLView *glView = [[GLMPlayerOpenGLView alloc] initWithFrame:NSMakeRect(0, 0, 100, 100)];
 
-        NSOpenGLPixelFormatAttribute attrs[] = {
-            NSOpenGLPFADoubleBuffer, // double buffered
-            NSOpenGLPFADepthSize, (NSOpenGLPixelFormatAttribute)16, // 16 bit depth buffer
-            (NSOpenGLPixelFormatAttribute)0
-        };
+        int i = 0;
+        NSOpenGLPixelFormatAttribute attr[32];
+        if (is_lion_or_better()) {
+          attr[i++] = NSOpenGLPFAOpenGLProfile;
+          attr[i++] = (gl3profile ? NSOpenGLProfileVersion3_2Core : NSOpenGLProfileVersionLegacy);
+        }
+        attr[i++] = NSOpenGLPFADoubleBuffer; // double buffered
+        attr[i++] = NSOpenGLPFADepthSize;
+        attr[i++] = (NSOpenGLPixelFormatAttribute)16; // 16 bit depth buffer
+        attr[i] = (NSOpenGLPixelFormatAttribute)0;
 
-        NSOpenGLPixelFormat *pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
+        NSOpenGLPixelFormat *pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
         s->glContext = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext:nil];
 
         create_menu();
@@ -291,6 +311,17 @@ void create_menu()
     [menuItem release];
 }
 
+bool is_lion_or_better(void)
+{
+    SInt32 major, minor;
+    Gestalt(gestaltSystemVersionMajor, &major);
+    Gestalt(gestaltSystemVersionMinor, &minor);
+    if(major >= 10 && minor >= 7)
+      return YES;
+    else
+      return NO;
+}
+
 @implementation GLMPlayerWindow
 
 - (void) windowDidResize:(NSNotification *) notification
diff --git a/libvo/gl_common.c b/libvo/gl_common.c
index 223404fd85..230e5dc2bd 100644
--- a/libvo/gl_common.c
+++ b/libvo/gl_common.c
@@ -1769,12 +1769,22 @@ void glDrawTex(GL *gl, GLfloat x, GLfloat y, GLfloat w, GLfloat h,
 static int create_window_cocoa(struct MPGLContext *ctx, uint32_t d_width,
                                uint32_t d_height, uint32_t flags)
 {
-    if (vo_cocoa_create_window(ctx->vo, d_width, d_height, flags) == 0) {
+    if (vo_cocoa_create_window(ctx->vo, d_width, d_height, flags, 0) == 0) {
         return SET_WINDOW_OK;
     } else {
         return SET_WINDOW_FAILED;
     }
 }
+
+static int create_window_cocoa_gl3(struct MPGLContext *ctx, int gl_flags,
+                                 int gl_version, uint32_t d_width,
+                                 uint32_t d_height, uint32_t flags)
+{
+    int rv = vo_cocoa_create_window(ctx->vo, d_width, d_height, flags, 1);
+    getFunctions(ctx->gl, (void *)getdladdr, NULL, true);
+    return rv;
+}
+
 static int setGlWindow_cocoa(MPGLContext *ctx)
 {
     vo_cocoa_change_attributes(ctx->vo);
@@ -2465,6 +2475,7 @@ MPGLContext *init_mpglcontext(enum MPGLType type, struct vo *vo)
 #ifdef CONFIG_GL_COCOA
     case GLTYPE_COCOA:
         ctx->create_window = create_window_cocoa;
+        ctx->create_window_gl3 = create_window_cocoa_gl3;
         ctx->setGlWindow = setGlWindow_cocoa;
         ctx->releaseGlContext = releaseGlContext_cocoa;
         ctx->swapGlBuffers = swapGlBuffers_cocoa;
-- 
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