From 46ff4dc3d35ecc3fcdd770b28565700a8553de84 Mon Sep 17 00:00:00 2001
From: Gregory Hainaut <gregory.hainaut@gmail.com>
Date: Mon, 27 Apr 2015 18:50:59 +0200
Subject: [PATCH] gsdx-ogl: hardware unit only support normalization of 4
 bytes...

(At least on recent AMD GPU)
---
 plugins/GSdx/GSDeviceOGL.cpp       | 2 +-
 plugins/GSdx/res/glsl/tfx_vgs.glsl | 4 ++--
 plugins/GSdx/res/glsl_source.h     | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/plugins/GSdx/GSDeviceOGL.cpp b/plugins/GSdx/GSDeviceOGL.cpp
index 75a84df2b6..e53d4421c2 100644
--- a/plugins/GSdx/GSDeviceOGL.cpp
+++ b/plugins/GSdx/GSDeviceOGL.cpp
@@ -208,7 +208,7 @@ bool GSDeviceOGL::Create(GSWnd* wnd)
 		{2 , GL_UNSIGNED_SHORT , GL_FALSE , sizeof(GSVertex)    , (const GLvoid*)(16) } ,
 		{1 , GL_UNSIGNED_INT   , GL_FALSE , sizeof(GSVertex)    , (const GLvoid*)(20) } ,
 		{2 , GL_UNSIGNED_SHORT , GL_FALSE , sizeof(GSVertex)    , (const GLvoid*)(24) } ,
-		{1 , GL_UNSIGNED_BYTE  , GL_TRUE  , sizeof(GSVertex)    , (const GLvoid*)(28) } ,
+		{4 , GL_UNSIGNED_BYTE  , GL_TRUE  , sizeof(GSVertex)    , (const GLvoid*)(28) } , // Only 1 byte is useful but hardware unit only support 4B
 	};
 	m_va = new GSVertexBufferStateOGL(sizeof(GSVertexPT1), il_convert, countof(il_convert));
 
diff --git a/plugins/GSdx/res/glsl/tfx_vgs.glsl b/plugins/GSdx/res/glsl/tfx_vgs.glsl
index 13c6f7deed..c277c0fed3 100644
--- a/plugins/GSdx/res/glsl/tfx_vgs.glsl
+++ b/plugins/GSdx/res/glsl/tfx_vgs.glsl
@@ -14,7 +14,7 @@ layout(location = 3) in float i_q;
 layout(location = 4) in uvec2 i_p;
 layout(location = 5) in uint  i_z;
 layout(location = 6) in uvec2 i_uv;
-layout(location = 7) in float i_f;
+layout(location = 7) in vec4  i_f;
 
 out SHADER
 {
@@ -145,7 +145,7 @@ void vs_main()
 
     VSout_c = i_c;
 	VSout_fc = i_c;
-    VSout_t.z = i_f;
+    VSout_t.z = i_f.x;
 }
 
 #endif
diff --git a/plugins/GSdx/res/glsl_source.h b/plugins/GSdx/res/glsl_source.h
index 401c324cde..7554e46029 100644
--- a/plugins/GSdx/res/glsl_source.h
+++ b/plugins/GSdx/res/glsl_source.h
@@ -465,7 +465,7 @@ static const char* tfx_vgs_glsl =
 	"layout(location = 4) in uvec2 i_p;\n"
 	"layout(location = 5) in uint  i_z;\n"
 	"layout(location = 6) in uvec2 i_uv;\n"
-	"layout(location = 7) in float i_f;\n"
+	"layout(location = 7) in vec4  i_f;\n"
 	"\n"
 	"out SHADER\n"
 	"{\n"
@@ -596,7 +596,7 @@ static const char* tfx_vgs_glsl =
 	"\n"
 	"    VSout_c = i_c;\n"
 	"	VSout_fc = i_c;\n"
-	"    VSout_t.z = i_f;\n"
+	"    VSout_t.z = i_f.x;\n"
 	"}\n"
 	"\n"
 	"#endif\n"