X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Frouteui.h;h=eeb351a7d9f5fc6e9b2c7465c1c3e3ee25727d14;hb=4f4458d229e40a852708319861224b7cc48ad0b9;hp=659c040f2932670a89704c62a6747fb32c75fd7f;hpb=60b0d8af679396c857f8c5f9a7a518b092a2f416;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/routeui.h b/shaders/routeui.h
index 659c040..eeb351a 100644
--- a/shaders/routeui.h
+++ b/shaders/routeui.h
@@ -11,9 +11,15 @@ static struct vg_shader _shader_routeui = {
 .static_src = 
 "layout (location=0) in vec2 a_co;\n"
 "\n"
+"uniform vec4 uOffset;\n"
+"\n"
 "void main()\n"
 "{\n"
-"   gl_Position = vec4(a_co*0.01,0.0,1.0);\n"
+"   float fbarx = (a_co.x+uOffset.x) * uOffset.z;\n"
+"   float fbary = a_co.y*uOffset.w + uOffset.y;\n"
+"\n"
+"   vec2 vpos = vec2( fbarx, fbary );\n"
+"   gl_Position = vec4(vpos,0.0,1.0);\n"
 "}\n"
 ""},
    .fs = 
@@ -22,17 +28,29 @@ static struct vg_shader _shader_routeui = {
 .static_src = 
 "out vec4 FragColor;\n"
 "\n"
+"uniform vec4 uColour;\n"
+"\n"
 "void main()\n"
 "{\n"
-"   FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n"
+"   FragColor = uColour;\n"
 "}\n"
 ""},
 };
 
+static GLuint _uniform_routeui_uOffset;
+static GLuint _uniform_routeui_uColour;
+static void shader_routeui_uOffset(v4f v){
+   glUniform4fv( _uniform_routeui_uOffset, 1, v );
+}
+static void shader_routeui_uColour(v4f v){
+   glUniform4fv( _uniform_routeui_uColour, 1, v );
+}
 static void shader_routeui_register(void){
    vg_shader_register( &_shader_routeui );
 }
 static void shader_routeui_use(void){ glUseProgram(_shader_routeui.id); }
 static void shader_routeui_link(void){
+   _uniform_routeui_uOffset = glGetUniformLocation( _shader_routeui.id, "uOffset" );
+   _uniform_routeui_uColour = glGetUniformLocation( _shader_routeui.id, "uColour" );
 }
 #endif /* SHADER_routeui_H */