From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 9 Apr 2018 10:51:41 +0000 (+0300)
Subject: Use individual component swizzle constants on OpenGL ES
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=ed2d1c8c5ac065751a7887b178b4499007c1ffe4;p=libs%2Fgl.git

Use individual component swizzle constants on OpenGL ES
---

diff --git a/source/texture.cpp b/source/texture.cpp
index a8b2f6d0..1d2ece80 100644
--- a/source/texture.cpp
+++ b/source/texture.cpp
@@ -162,10 +162,20 @@ void Texture::update_parameter(int mask) const
 		set_parameter_i(GL_TEXTURE_COMPARE_FUNC, cmp_func);
 	if(mask&FORMAT_SWIZZLE)
 	{
-		if(ARB_direct_state_access)
-			glTextureParameteriv(id, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
+		if(get_gl_api()==OPENGL_ES2)
+		{
+			set_parameter_i(GL_TEXTURE_SWIZZLE_R, swizzle_orders[swizzle*4]);
+			set_parameter_i(GL_TEXTURE_SWIZZLE_G, swizzle_orders[swizzle*4+1]);
+			set_parameter_i(GL_TEXTURE_SWIZZLE_B, swizzle_orders[swizzle*4+2]);
+			set_parameter_i(GL_TEXTURE_SWIZZLE_A, swizzle_orders[swizzle*4+3]);
+		}
 		else
-			glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
+		{
+			if(ARB_direct_state_access)
+				glTextureParameteriv(id, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
+			else
+				glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4);
+		}
 	}
 }