1 files changed, 29 insertions, 0 deletions
diff --git a/src/runtime/shaders/distancefieldtext_dropshadow.frag b/src/runtime/shaders/distancefieldtext_dropshadow.frag
new file mode 100644
index 0000000..da51c5c
--- /dev/null
+++ b/src/runtime/shaders/distancefieldtext_dropshadow.frag
@@ -0,0 +1,29 @@
+varying highp vec2 sampleCoord;
+varying highp vec2 alphas;
+varying highp vec2 shadowSampleCoord;
+varying highp vec4 normalizedTextureBounds;
+
+uniform sampler2D _qt_texture;
+uniform highp vec4 color;
+uniform highp vec4 shadowColor;
+
+void main()
+{
+    highp float shadowAlpha = smoothstep(alphas.x,
+                                         alphas.y,
+                                         texture2D(_qt_texture,
+                                                   clamp(shadowSampleCoord,
+                                                         normalizedTextureBounds.xy,
+                                                         normalizedTextureBounds.zw)).a);
+    highp vec4 shadowPixel = shadowColor * shadowAlpha;
+
+    highp float textAlpha = smoothstep(alphas.x,
+                                       alphas.y,
+                                       texture2D(_qt_texture,
+                                                 clamp(sampleCoord,
+                                                       normalizedTextureBounds.xy,
+                                                       normalizedTextureBounds.zw)).a);
+    highp vec4 textPixel = color * textAlpha;
+
+    gl_FragColor = mix(shadowPixel, textPixel, textPixel.a);
+}