From 54d0234c8334bcd61ffb655a57e6147fd279b9e1 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Thu, 10 Dec 2015 02:44:09 +0300
Subject: Add OpenGL ES 2 shaders.

---
 data/graphics/shaders/CMakeLists.txt    |  2 ++
 data/graphics/shaders/Makefile.am       |  2 ++
 data/graphics/shaders/gles2_frag.glsl   | 20 ++++++++++++++++++++
 data/graphics/shaders/gles2_vertex.glsl | 12 ++++++++++++
 4 files changed, 36 insertions(+)
 create mode 100644 data/graphics/shaders/gles2_frag.glsl
 create mode 100644 data/graphics/shaders/gles2_vertex.glsl

(limited to 'data/graphics')

diff --git a/data/graphics/shaders/CMakeLists.txt b/data/graphics/shaders/CMakeLists.txt
index 0dc6cc124..1ae389d50 100644
--- a/data/graphics/shaders/CMakeLists.txt
+++ b/data/graphics/shaders/CMakeLists.txt
@@ -1,4 +1,6 @@
 SET(FILES
+    gles2_frag.glsl
+    gles2_vertex.glsl
     simple_frag.glsl
     simple_vertex.glsl
     )
diff --git a/data/graphics/shaders/Makefile.am b/data/graphics/shaders/Makefile.am
index db10da9b1..543c8677b 100644
--- a/data/graphics/shaders/Makefile.am
+++ b/data/graphics/shaders/Makefile.am
@@ -1,6 +1,8 @@
 shadersdir = $(pkgdatadir)/data/graphics/shaders
 
 shaders_DATA =				\
+	gles2_frag.glsl		\
+	gles2_vertex.glsl		\
 	simple_frag.glsl		\
 	simple_vertex.glsl
 
diff --git a/data/graphics/shaders/gles2_frag.glsl b/data/graphics/shaders/gles2_frag.glsl
new file mode 100644
index 000000000..ab642fcf6
--- /dev/null
+++ b/data/graphics/shaders/gles2_frag.glsl
@@ -0,0 +1,20 @@
+#version 100
+precision mediump float;
+
+uniform sampler2D tex;
+uniform vec4 color;
+uniform float drawType;
+uniform float alpha;
+varying mediump vec2 Texcoord;
+
+void main()
+{
+    if (drawType >= 0.1)
+    {
+        gl_FragColor = texture2D(tex, Texcoord) * vec4(1.0, 1.0, 1.0, alpha);
+    }
+    else
+    {
+        gl_FragColor = color;
+    }
+}
diff --git a/data/graphics/shaders/gles2_vertex.glsl b/data/graphics/shaders/gles2_vertex.glsl
new file mode 100644
index 000000000..83bd7f42d
--- /dev/null
+++ b/data/graphics/shaders/gles2_vertex.glsl
@@ -0,0 +1,12 @@
+#version 100
+
+attribute vec4 position;
+varying vec2 Texcoord;
+uniform vec2 screen;
+uniform vec2 textureSize;
+
+void main()
+{
+   Texcoord = vec2(position.z / textureSize.x, position.w / textureSize.y);
+   gl_Position = vec4(position.x / screen.x - 1.0, 1.0 - position.y / screen.y, 0.0, 1.0);
+}
-- 
cgit v1.2.3-70-g09d2