1 files changed, 0 insertions, 71 deletions
diff --git a/src/mbgl/shaders/symbol_sdf.cpp b/src/mbgl/shaders/symbol_sdf.cpp
index e087242bf8..ccb4b9cee6 100644
--- a/src/mbgl/shaders/symbol_sdf.cpp
+++ b/src/mbgl/shaders/symbol_sdf.cpp
@@ -7,60 +7,6 @@ namespace shaders {
 
 const char* symbol_sdf::name = "symbol_sdf";
 const char* symbol_sdf::vertexSource = R"MBGL_SHADER(
-#ifdef GL_ES
-precision highp float;
-#else
-
-#if !defined(lowp)
-#define lowp
-#endif
-
-#if !defined(mediump)
-#define mediump
-#endif
-
-#if !defined(highp)
-#define highp
-#endif
-
-#endif
-
-float evaluate_zoom_function_1(const vec4 values, const float t) {
-    if (t < 1.0) {
-        return mix(values[0], values[1], t);
-    } else if (t < 2.0) {
-        return mix(values[1], values[2], t - 1.0);
-    } else {
-        return mix(values[2], values[3], t - 2.0);
-    }
-}
-vec4 evaluate_zoom_function_4(const vec4 value0, const vec4 value1, const vec4 value2, const vec4 value3, const float t) {
-    if (t < 1.0) {
-        return mix(value0, value1, t);
-    } else if (t < 2.0) {
-        return mix(value1, value2, t - 1.0);
-    } else {
-        return mix(value2, value3, t - 2.0);
-    }
-}
-
-// The offset depends on how many pixels are between the world origin and the edge of the tile:
-// vec2 offset = mod(pixel_coord, size)
-//
-// At high zoom levels there are a ton of pixels between the world origin and the edge of the tile.
-// The glsl spec only guarantees 16 bits of precision for highp floats. We need more than that.
-//
-// The pixel_coord is passed in as two 16 bit values:
-// pixel_coord_upper = floor(pixel_coord / 2^16)
-// pixel_coord_lower = mod(pixel_coord, 2^16)
-//
-// The offset is calculated in a series of steps that should preserve this precision:
-vec2 get_pattern_pos(const vec2 pixel_coord_upper, const vec2 pixel_coord_lower,
-    const vec2 pattern_size, const float tile_units_to_pixels, const vec2 pos) {
-
-    vec2 offset = mod(mod(mod(pixel_coord_upper, pattern_size) * 256.0, pattern_size) * 256.0 + pixel_coord_lower, pattern_size);
-    return (tile_units_to_pixels * pos + offset) / pattern_size;
-}
 const float PI = 3.141592653589793;
 
 attribute vec2 a_pos;
@@ -172,23 +118,6 @@ void main() {
 
 )MBGL_SHADER";
 const char* symbol_sdf::fragmentSource = R"MBGL_SHADER(
-#ifdef GL_ES
-precision mediump float;
-#else
-
-#if !defined(lowp)
-#define lowp
-#endif
-
-#if !defined(mediump)
-#define mediump
-#endif
-
-#if !defined(highp)
-#define highp
-#endif
-
-#endif
 #define SDF_PX 8.0
 #define EDGE_GAMMA 0.105/DEVICE_PIXEL_RATIO