replace all attribute and varying in chart shaders

Next step to a pure OpenGL 3.2 core context.

Change-Id: Ifcfccd9ffc8adcc3b7338e10cb25aeb8496909a3

18 files changed, 38 insertions, 37 deletions

diff --git a/chart2/opengl/backgroundFragmentShader.glsl b/chart2/opengl/backgroundFragmentShader.glsl
index 646dd4fe1633..eb3adaae6d91 100644
--- a/chart2/opengl/backgroundFragmentShader.glsl
+++ b/chart2/opengl/backgroundFragmentShader.glsl
@@ -9,7 +9,7 @@
 
 #version 150 core core
 
-varying vec4 fragmentColor;
+in vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/backgroundVertexShader.glsl b/chart2/opengl/backgroundVertexShader.glsl
index 3f2ae8efdf49..bf7937cafffd 100644
--- a/chart2/opengl/backgroundVertexShader.glsl
+++ b/chart2/opengl/backgroundVertexShader.glsl
@@ -9,10 +9,10 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform mat4 MVP;
-attribute vec4 vColor;
-varying vec4 fragmentColor;
+in vec4 vColor;
+out vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/commonFragmentShader.glsl b/chart2/opengl/commonFragmentShader.glsl
index 2f573adf1ef8..d602b21a3488 100644
--- a/chart2/opengl/commonFragmentShader.glsl
+++ b/chart2/opengl/commonFragmentShader.glsl
@@ -9,7 +9,7 @@
 
 #version 150 core
 
-varying vec4 fragmentColor;
+in vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/commonVertexShader.glsl b/chart2/opengl/commonVertexShader.glsl
index f48b4d06a355..145d4db2fcae 100644
--- a/chart2/opengl/commonVertexShader.glsl
+++ b/chart2/opengl/commonVertexShader.glsl
@@ -9,10 +9,10 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform mat4 MVP;
 uniform vec4 vColor;
-varying vec4 fragmentColor;
+out vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/debugFragmentShader.glsl b/chart2/opengl/debugFragmentShader.glsl
index d9255eb80a7e..92b005edc862 100644
--- a/chart2/opengl/debugFragmentShader.glsl
+++ b/chart2/opengl/debugFragmentShader.glsl
@@ -9,7 +9,7 @@
 
 #version 150 core
 
-varying vec4 fragmentColor;
+in vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/debugVertexShader.glsl b/chart2/opengl/debugVertexShader.glsl
index 1768cc8b2750..a542da88b911 100644
--- a/chart2/opengl/debugVertexShader.glsl
+++ b/chart2/opengl/debugVertexShader.glsl
@@ -9,9 +9,9 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform vec4 vColor;
-varying vec4 fragmentColor;
+out vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/pickingFragmentShader.glsl b/chart2/opengl/pickingFragmentShader.glsl
index 749fefce624c..d9e06a6ea015 100644
--- a/chart2/opengl/pickingFragmentShader.glsl
+++ b/chart2/opengl/pickingFragmentShader.glsl
@@ -10,8 +10,8 @@
 #version 150 core
 
 uniform float minCoordX;
-varying vec3 positionWorldspace;
-varying vec4 fragmentColor;
+in vec3 positionWorldspace;
+in vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/pickingVertexShader.glsl b/chart2/opengl/pickingVertexShader.glsl
index c0096917cb97..9dc5a1463a23 100644
--- a/chart2/opengl/pickingVertexShader.glsl
+++ b/chart2/opengl/pickingVertexShader.glsl
@@ -9,14 +9,14 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform mat4 MVP;
 uniform mat4 M;
 uniform vec4 vColor;
 uniform float minCoordX;
 uniform float maxCoordX;
-varying vec4 fragmentColor;
-varying vec3 positionWorldspace;
+out vec4 fragmentColor;
+out vec3 positionWorldspace;
 void main()
 {
     positionWorldspace = (M * vec4(vPosition,1)).xyz;
diff --git a/chart2/opengl/renderTextureFragmentShader.glsl b/chart2/opengl/renderTextureFragmentShader.glsl
index c037456095c7..52dfde821a7d 100644
--- a/chart2/opengl/renderTextureFragmentShader.glsl
+++ b/chart2/opengl/renderTextureFragmentShader.glsl
@@ -10,11 +10,12 @@
 #version 150 core
 
 uniform sampler2D RenderTex;
-varying vec2 vTexCoord;
+in vec2 vTexCoord;
+out vec4 actualColor;
 
 void main()
 {
-    gl_FragColor = vec4(texture2D(RenderTex, vTexCoord).rgb, 1.0);
+    actualColor = vec4(texture(RenderTex, vTexCoord).rgb, 1.0);
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/chart2/opengl/renderTextureVertexShader.glsl b/chart2/opengl/renderTextureVertexShader.glsl
index 80560cfe11fb..b9307fb32527 100644
--- a/chart2/opengl/renderTextureVertexShader.glsl
+++ b/chart2/opengl/renderTextureVertexShader.glsl
@@ -9,9 +9,9 @@
 
 #version 150 core
 
-attribute vec4 vPosition;
-attribute vec2 texCoord;
-varying vec2 vTexCoord;
+in vec4 vPosition;
+in vec2 texCoord;
+out vec2 vTexCoord;
 void main()
 {
     gl_Position =  vPosition;
diff --git a/chart2/opengl/screenTextFragmentShader.glsl b/chart2/opengl/screenTextFragmentShader.glsl
index b5b69c90aa9f..7c90ec0e3eb0 100644
--- a/chart2/opengl/screenTextFragmentShader.glsl
+++ b/chart2/opengl/screenTextFragmentShader.glsl
@@ -9,7 +9,7 @@
 
 #version 150 core
 
-varying vec2 vTexCoord;
+in vec2 vTexCoord;
 uniform sampler2D TextTex;
 uniform vec4 textColor;
 void main()
diff --git a/chart2/opengl/screenTextVertexShader.glsl b/chart2/opengl/screenTextVertexShader.glsl
index ab3fb9259172..b0ab221cb032 100644
--- a/chart2/opengl/screenTextVertexShader.glsl
+++ b/chart2/opengl/screenTextVertexShader.glsl
@@ -9,9 +9,9 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
-attribute vec2 texCoord;
-varying vec2 vTexCoord;
+in vec3 vPosition;
+in vec2 texCoord;
+out vec2 vTexCoord;
 void main()
 {
     gl_Position =  vec4(vPosition, 1);
diff --git a/chart2/opengl/shape3DFragmentShaderV300.glsl b/chart2/opengl/shape3DFragmentShaderV300.glsl
index c9d4522c6eca..9a8ddeaa9b54 100644
--- a/chart2/opengl/shape3DFragmentShaderV300.glsl
+++ b/chart2/opengl/shape3DFragmentShaderV300.glsl
@@ -11,8 +11,8 @@
 
 #define MAX_LIGHT_NUM 8
 
-varying vec3 positionWorldspace;
-varying vec3 normalCameraspace;
+in vec3 positionWorldspace;
+in vec3 normalCameraspace;
 
 uniform mat4 V;
 uniform vec4 materialAmbient;
diff --git a/chart2/opengl/shape3DVertexShaderV300.glsl b/chart2/opengl/shape3DVertexShaderV300.glsl
index 947ee5fde602..c5072fd0b55e 100644
--- a/chart2/opengl/shape3DVertexShaderV300.glsl
+++ b/chart2/opengl/shape3DVertexShaderV300.glsl
@@ -9,11 +9,11 @@
 
 #version 150 core
 
-attribute vec3 vertexPositionModelspace;
-attribute vec3 vertexNormalModelspace;
+in vec3 vertexPositionModelspace;
+in vec3 vertexNormalModelspace;
 
-varying vec3 positionWorldspace;
-varying vec3 normalCameraspace;
+out vec3 positionWorldspace;
+out vec3 normalCameraspace;
 
 uniform mat4 P;
 uniform mat4 M;
diff --git a/chart2/opengl/symbolFragmentShader.glsl b/chart2/opengl/symbolFragmentShader.glsl
index 4b0b464a3622..35cc9106770f 100644
--- a/chart2/opengl/symbolFragmentShader.glsl
+++ b/chart2/opengl/symbolFragmentShader.glsl
@@ -9,7 +9,7 @@
 
 #version 150 core
 
-varying vec4 fragmentColor;
+in vec4 fragmentColor;
 uniform int shape;
 
 void main()
diff --git a/chart2/opengl/symbolVertexShader.glsl b/chart2/opengl/symbolVertexShader.glsl
index 7e3a7488daa9..c5603b5e79d1 100644
--- a/chart2/opengl/symbolVertexShader.glsl
+++ b/chart2/opengl/symbolVertexShader.glsl
@@ -9,10 +9,10 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform mat4 MVP;
 uniform vec4 vColor;
-varying vec4 fragmentColor;
+out vec4 fragmentColor;
 
 void main()
 {
diff --git a/chart2/opengl/textFragmentShader.glsl b/chart2/opengl/textFragmentShader.glsl
index 4f582a4117fb..1c3af260c9a4 100644
--- a/chart2/opengl/textFragmentShader.glsl
+++ b/chart2/opengl/textFragmentShader.glsl
@@ -10,7 +10,7 @@
 #version 150 core
 
 uniform sampler2D TextTex;
-varying vec2 vTexCoord;
+in vec2 vTexCoord;
 void main()
 {
     vec3 color = texture2D(TextTex, vTexCoord).rgb;
diff --git a/chart2/opengl/textVertexShader.glsl b/chart2/opengl/textVertexShader.glsl
index 3f14ab96800c..351da30b5f79 100644
--- a/chart2/opengl/textVertexShader.glsl
+++ b/chart2/opengl/textVertexShader.glsl
@@ -9,10 +9,10 @@
 
 #version 150 core
 
-attribute vec3 vPosition;
+in vec3 vPosition;
 uniform mat4 MVP;
-attribute vec2 texCoord;
-varying vec2 vTexCoord;
+in vec2 texCoord;
+out vec2 vTexCoord;
 void main()
 {
     gl_Position =  MVP * vec4(vPosition, 1);