fixed fonts on mobile platforms

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vts-browser-js",
-  "version": "2.14.3",
+  "version": "2.14.4",
   "description": "JavaScript WebGL 3D maps rendering engine",
   "main": "src/browser/index.js",
   "scripts": {

src/core/core.js

@@ -481,7 +481,7 @@ string getCoreVersion()
 */
 
 function getCoreVersion(full) {
-    return (full ? 'Core: ' : '') + '2.14.3';
+    return (full ? 'Core: ' : '') + '2.14.4';
 }
 
 

src/core/renderer/gpu/shaders.js

@@ -333,6 +333,7 @@ GpuShaders.text2VertexShader =
             'gl_Position = uMVP * vec4(8.0, 0.0, 0.0, 1.0);\n'+
         '}else{\n'+
             'float file = floor(aTexCoord.y/4.0);\n'+
+            'vTexCoord.y = mod(aTexCoord.y,4.0);\n'+
             'if (file != floor(uFile)) {\n'+
                 'gl_Position = uMVP * vec4(8.0, 0.0, 0.0, 1.0);\n'+
             '}else{\n'+
@@ -366,6 +367,7 @@ GpuShaders.icon2VertexShader =
     'void main(){ \n'+
         'vTexCoord = aTexCoord.xy * uScale[2];\n'+
         'float file = floor(aTexCoord.y/4.0);\n'+
+        'vTexCoord.y = mod(aTexCoord.y,4.0);\n'+
         'if (file != floor(uFile)) {\n'+
             'gl_Position = uMVP * vec4(8.0, 0.0, 0.0, 1.0);\n'+
         '}else{\n'+
@@ -397,7 +399,7 @@ GpuShaders.text2FragmentShader = 'precision mediump float;\n'+
 
     'void main() {\n'+
         'vec4 mask;\n'+
-        'int i=int(round(mod(floor(vTexCoord.y),4.0)));\n'+
+        'int i=int(floor(vTexCoord.y));\n'+
         'if (i == 0) mask=vec4(1.0,0.0,0.0,0.0);else\n'+
         'if (i == 1) mask=vec4(0.0,1.0,0.0,0.0);else\n'+
         'if (i == 2) mask=vec4(0.0,0.0,1.0,0.0);\n'+