From 1f453a8909527a95fedd597b4fdaab90c18712f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Foucault?= <foucault.clem@gmail.com>
Date: Fri, 24 Feb 2017 12:38:35 +0100
Subject: OpenColorIO: Update glsl implementation to be ready for ogl 3.3 core

---
 intern/opencolorio/gpu_shader_display_transform.glsl | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

(limited to 'intern/opencolorio/gpu_shader_display_transform.glsl')

diff --git a/intern/opencolorio/gpu_shader_display_transform.glsl b/intern/opencolorio/gpu_shader_display_transform.glsl
index 853bf575582..4a63405045d 100644
--- a/intern/opencolorio/gpu_shader_display_transform.glsl
+++ b/intern/opencolorio/gpu_shader_display_transform.glsl
@@ -10,6 +10,15 @@ uniform float image_texture_width;
 uniform float image_texture_height;
 #endif
 
+#if __VERSION__ < 130
+  varying vec2 texCoord_interp;
+  #define fragColor gl_FragColor
+#else
+  in vec2 texCoord_interp;
+  out vec4 fragColor;
+  #define texture2D texture
+#endif
+
 #ifdef USE_CURVE_MAPPING
 /* Curve mapping parameters
  *
@@ -143,7 +152,7 @@ vec4 apply_dither(vec2 st, vec4 col)
 
 void main()
 {
-	vec4 col = texture2D(image_texture, gl_TexCoord[0].st);
+	vec4 col = texture2D(image_texture, texCoord_interp.st);
 #ifdef USE_CURVE_MAPPING
 	col = curvemapping_evaluate_premulRGBF(col);
 #endif
@@ -165,8 +174,8 @@ void main()
 	vec4 result = OCIODisplay(col, lut3d_texture);
 
 #ifdef USE_DITHER
-	result = apply_dither(gl_TexCoord[0].st, result);
+	result = apply_dither(texCoord_interp.st, result);
 #endif
 
-	gl_FragColor = result;
+	fragColor = result;
 }
-- 
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