add Symbol2D rendering

Change-Id: Ic294ffc4bc675495fe83ac182dbebbba7245c7b9

12 files changed, 104 insertions, 0 deletions

diff --git a/chart2/opengl/backgroundFragmentShader.glsl b/chart2/opengl/backgroundFragmentShader.glsl
new file mode 100644
index 000000000000..e772587c9835
--- /dev/null
+++ b/chart2/opengl/backgroundFragmentShader.glsl
@@ -0,0 +1,6 @@
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_FragColor = fragmentColor;
+}
diff --git a/chart2/opengl/backgroundVertexShader.glsl b/chart2/opengl/backgroundVertexShader.glsl
new file mode 100644
index 000000000000..2a3a34116256
--- /dev/null
+++ b/chart2/opengl/backgroundVertexShader.glsl
@@ -0,0 +1,10 @@
+attribute vec3 vPosition;
+uniform mat4 MVP;
+attribute vec4 vColor;
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_Position =  MVP * vec4(vPosition, 1);
+    fragmentColor = vColor;
+}
diff --git a/chart2/opengl/commonFragmentShader.glsl b/chart2/opengl/commonFragmentShader.glsl
new file mode 100644
index 000000000000..e772587c9835
--- /dev/null
+++ b/chart2/opengl/commonFragmentShader.glsl
@@ -0,0 +1,6 @@
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_FragColor = fragmentColor;
+}
diff --git a/chart2/opengl/commonVertexShader.glsl b/chart2/opengl/commonVertexShader.glsl
new file mode 100644
index 000000000000..862a35b509f4
--- /dev/null
+++ b/chart2/opengl/commonVertexShader.glsl
@@ -0,0 +1,10 @@
+attribute vec3 vPosition;
+uniform mat4 MVP;
+uniform vec4 vColor;
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_Position =  MVP * vec4(vPosition, 1);
+    fragmentColor = vColor;
+}
diff --git a/chart2/opengl/debugFragmentShader.glsl b/chart2/opengl/debugFragmentShader.glsl
new file mode 100644
index 000000000000..ce7f863f3394
--- /dev/null
+++ b/chart2/opengl/debugFragmentShader.glsl
@@ -0,0 +1,7 @@
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_FragColor = vec4(1.0, 1.0, 0.0, 0.5);
+}
+
diff --git a/chart2/opengl/debugVertexShader.glsl b/chart2/opengl/debugVertexShader.glsl
new file mode 100644
index 000000000000..c0f3d0322652
--- /dev/null
+++ b/chart2/opengl/debugVertexShader.glsl
@@ -0,0 +1,9 @@
+attribute vec3 vPosition;
+uniform vec4 vColor;
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_Position = vec4(vPosition, 1);
+}
+
diff --git a/chart2/opengl/renderFragmentShader.glsl b/chart2/opengl/renderFragmentShader.glsl
new file mode 100644
index 000000000000..dd08d9a4a2cd
--- /dev/null
+++ b/chart2/opengl/renderFragmentShader.glsl
@@ -0,0 +1,7 @@
+uniform sampler2D RenderTex;
+varying vec2 vTexCoord;
+
+void main()
+{
+    gl_FragColor = vec4(texture2D(RenderTex, vTexCoord).rgb, 1.0);
+}
diff --git a/chart2/opengl/renderVertexShader.glsl b/chart2/opengl/renderVertexShader.glsl
new file mode 100644
index 000000000000..1c9d3ce647dd
--- /dev/null
+++ b/chart2/opengl/renderVertexShader.glsl
@@ -0,0 +1,9 @@
+attribute vec4 vPosition;
+attribute vec2 texCoord;
+varying vec2 vTexCoord;
+
+void main()
+{
+    gl_Position =  vPosition;
+    vTexCoord = texCoord;
+}
diff --git a/chart2/opengl/symbolFragmentShader.glsl b/chart2/opengl/symbolFragmentShader.glsl
new file mode 100644
index 000000000000..c340be274337
--- /dev/null
+++ b/chart2/opengl/symbolFragmentShader.glsl
@@ -0,0 +1,12 @@
+#version 130
+
+varying vec4 fragmentColor;
+
+void main()
+{
+    vec2 p = gl_PointCoord * 2.0 - vec2(1.0); // (0,0) in the center
+    if (abs(p.x) < abs(p.y))
+        discard;
+
+    gl_FragColor = fragmentColor;
+}
diff --git a/chart2/opengl/symbolVertexShader.glsl b/chart2/opengl/symbolVertexShader.glsl
new file mode 100644
index 000000000000..6aef1e8a2146
--- /dev/null
+++ b/chart2/opengl/symbolVertexShader.glsl
@@ -0,0 +1,13 @@
+#version 130
+
+attribute vec3 vPosition;
+uniform mat4 MVP;
+uniform vec4 vColor;
+varying vec4 fragmentColor;
+
+void main()
+{
+    gl_Position =  MVP * vec4(vPosition, 1);
+    fragmentColor = vColor;
+    gl_PointSize = 10.0;
+}
diff --git a/chart2/opengl/textFragmentShader.glsl b/chart2/opengl/textFragmentShader.glsl
new file mode 100644
index 000000000000..83d0d82550be
--- /dev/null
+++ b/chart2/opengl/textFragmentShader.glsl
@@ -0,0 +1,6 @@
+uniform sampler2D TextTex;
+varying vec2 vTexCoord;
+void main()
+{
+    gl_FragColor = vec4(texture2D(TextTex, vTexCoord).rgba);
+}
diff --git a/chart2/opengl/textVertexShader.glsl b/chart2/opengl/textVertexShader.glsl
new file mode 100644
index 000000000000..013f43c6157a
--- /dev/null
+++ b/chart2/opengl/textVertexShader.glsl
@@ -0,0 +1,9 @@
+attribute vec3 vPosition;
+uniform mat4 MVP;
+attribute vec2 texCoord;
+varying vec2 vTexCoord;
+void main()
+{
+    gl_Position =  MVP * vec4(vPosition, 1);
+    vTexCoord = texCoord;
+}