From d18ad8a7fb3257001a5045e11f3f770a48a7fa69 Mon Sep 17 00:00:00 2001
From: Tomaž Vajngerl <tomaz.vajngerl@collabora.com>
Date: Wed, 24 Feb 2016 00:44:58 +0100
Subject: opengl: shader based polyline rendering - fixes tdf#97137 for OGL

Adds native opengl polyline rendering to draw polylines, line joins
and line caps as triangle strips. The vertex shader allows for the
dynamic line width by calculating the correct vertex posiitons,
and the fragment shader is used for anti-aliasing.

Change-Id: If7982c828cae1fae59c57194c8ac77e5ad7f1d26
---
 vcl/inc/opengl/program.hxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'vcl/inc/opengl')

diff --git a/vcl/inc/opengl/program.hxx b/vcl/inc/opengl/program.hxx
index 5de3c1bdbe5f..780cba72380f 100644
--- a/vcl/inc/opengl/program.hxx
+++ b/vcl/inc/opengl/program.hxx
@@ -37,6 +37,7 @@ private:
     GLuint          mnTexCoordAttrib;
     GLuint          mnAlphaCoordAttrib;
     GLuint          mnMaskCoordAttrib;
+    GLuint          mnNormalAttrib;
     TextureList     maTextures;
     bool            mbBlending;
 
@@ -59,6 +60,7 @@ public:
     void SetTextureCoord( const GLvoid* pData );
     void SetAlphaCoord( const GLvoid* pData );
     void SetMaskCoord(const GLvoid* pData);
+    void SetExtrusionVectors(const GLvoid* pData);
 
     void SetUniform1f( const OString& rName, GLfloat v1 );
     void SetUniform2f( const OString& rName, GLfloat v1, GLfloat v2 );
@@ -80,7 +82,7 @@ public:
     bool DrawTexture( const OpenGLTexture& rTexture );
 
 protected:
-    void SetVertexAttrib( GLuint& rAttrib, const OString& rName, const GLvoid* pData );
+    void SetVertexAttrib( GLuint& rAttrib, const OString& rName, const GLvoid* pData, GLint nSize = 2 );
     GLuint GetUniformLocation( const OString& rName );
 };
 
-- 
cgit