From 4bd3e51fbe61ae83bc9f6674646962d24ea1e075 Mon Sep 17 00:00:00 2001
From: Aman Gupta <aman@tmm1.net>
Date: Wed, 19 Oct 2016 12:07:05 -0700
Subject: opengl: compile against iOS OpenGLES implementation

---
 video/out/opengl/common.h       |  3 +++
 video/out/opengl/header_fixes.h | 17 +++++++++++++++++
 wscript                         |  6 +++++-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/video/out/opengl/common.h b/video/out/opengl/common.h
index 5abe839b8d..afb5b61f7e 100644
--- a/video/out/opengl/common.h
+++ b/video/out/opengl/common.h
@@ -36,6 +36,9 @@
 #include <OpenGL/gl.h>
 #include <OpenGL/gl3.h>
 #include <OpenGL/glext.h>
+#elif HAVE_IOS_GL
+#include <OpenGLES/ES2/glext.h>
+#include <OpenGLES/ES3/glext.h>
 #elif HAVE_ANDROID_GL
 #include <GLES3/gl3.h>
 #else
diff --git a/video/out/opengl/header_fixes.h b/video/out/opengl/header_fixes.h
index 9953f7e497..9a7108dcda 100644
--- a/video/out/opengl/header_fixes.h
+++ b/video/out/opengl/header_fixes.h
@@ -92,6 +92,23 @@
 #define GL_UNSIGNED_SHORT_8_8_REV_APPLE 0x85BB
 #endif
 
+#if HAVE_IOS_GL
+#define GL_WRITE_ONLY GL_WRITE_ONLY_OES
+#define GL_TEXTURE_1D 0x0DE0
+#define GL_R16 0x822A
+#define GL_RG16 0x822C
+#define GL_RGB10 0x8052
+#define GL_RGB16 0x8054
+#define GL_RGBA12 0x805A
+#define GL_RGBA16 0x805B
+#define GL_LUMINANCE8 GL_LUMINANCE8_EXT
+#define GL_LUMINANCE8_ALPHA8 GL_LUMINANCE8_ALPHA8_EXT
+#define GL_LUMINANCE16 0x8042
+#define GL_LUMINANCE16_ALPHA16 0x8048
+#define GL_TEXTURE_RED_SIZE 0x805C
+#define GL_TEXTURE_LUMINANCE_SIZE 0x8060
+#endif
+
 // GL_ARB_timer_query and EXT_disjoint_timer_query
 #ifndef GL_TIME_ELAPSED
 // Same as GL_TIME_ELAPSED_EXT
diff --git a/wscript b/wscript
index 7dea08b8db..b309e32cd3 100644
--- a/wscript
+++ b/wscript
@@ -811,10 +811,14 @@ video_output_features = [
         'desc': 'Android OpenGL ES support',
         'deps': ['android'],
         'func': check_statement('GLES3/gl3.h', '(void)GL_RGB32F'),  # arbitrary OpenGL ES 3.0 symbol
+    } , {
+        'name': '--ios-gl',
+        'desc': 'iOS OpenGL ES support',
+        'func': check_statement('OpenGLES/ES3/glext.h', '(void)GL_RGB32F'),  # arbitrary OpenGL ES 3.0 symbol
     } , {
         'name': '--any-gl',
         'desc': 'Any OpenGL (ES) support',
-        'deps_any': ['standard-gl', 'android-gl', 'cocoa'],
+        'deps_any': ['standard-gl', 'android-gl', 'ios-gl', 'cocoa'],
         'func': check_true
     } , {
         'name': '--plain-gl',
-- 
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