🔀 Merge pull request #362 from Schneegans/fix/fullscreen-effects

docs/changelog.md

@@ -15,6 +15,7 @@ SPDX-License-Identifier: CC-BY-4.0
 
 #### Bug Fixes
 
+- Some effects (Fire, Incinerate, Energize A, Energize B) are faded towards the edges of the window. This used to look weird when the window is maximized. This has been fixed.
 - On KDE, the animations are not applied to IntelliJ IDEs anymore. These IDEs use windows for their tooltips which do not set the WM class correctly. This caused the animations to be applied to the tooltips as well making them unusable. This is rather a workaround than a fix, but makes the effect usable again in conjunction with IntelliJ IDEs.
 
 ## [Burn My Windows 35](https://github.com/schneegans/Burn-My-Windows/releases/tag/v35)

kwin/main.js.in

@@ -128,6 +128,7 @@ class %EFFECT_CLASS% {
         this.setupForcedRoles(window);
 
         effect.setUniform(this.shader, 'uForOpening', 1.0);
+        effect.setUniform(this.shader, 'uIsFullscreen', window.fullScreen ? 1.0 : 0.0);
 
         %ON_ANIMATION_BEGIN%
 
@@ -167,6 +168,7 @@ class %EFFECT_CLASS% {
         this.setupForcedRoles(window);
 
         effect.setUniform(this.shader, 'uForOpening', 0.0);
+        effect.setUniform(this.shader, 'uIsFullscreen', window.fullScreen ? 1.0 : 0.0);
 
         %ON_ANIMATION_BEGIN%
 

resources/shaders/common.glsl

@@ -20,13 +20,14 @@
 
 // Each shader can access these standard input values:
 
-// vec2  iTexCoord:   Texture coordinates for retrieving the window input color.
-// bool  uForOpening: True if a window-open animation is ongoing, false otherwise.
-// float uProgress:   A value which transitions from 0 to 1 during the animation.
-// float uDuration:   The duration of the current animation in seconds.
-// vec2  uSize:       The size of uTexture in pixels.
-// float uPadding:    The empty area around the actual window (e.g. where the shadow
-//                    is drawn). For now, this will only be set on GNOME.
+// vec2  iTexCoord:     Texture coordinates for retrieving the window input color.
+// bool  uIsFullscreen: True if the window is maximized or in fullscreen mode.
+// bool  uForOpening:   True if a window-open animation is ongoing, false otherwise.
+// float uProgress:     A value which transitions from 0 to 1 during the animation.
+// float uDuration:     The duration of the current animation in seconds.
+// vec2  uSize:         The size of uTexture in pixels.
+// float uPadding:      The empty area around the actual window (e.g. where the shadow
+//                      is drawn). For now, this will only be set on GNOME.
 
 // Furthermore, there are two global methods for reading the window input color and
 // setting the shader output color. Both methods assume straight alpha:
@@ -35,6 +36,7 @@
 // void setOutputColor(vec4 outColor)
 
 uniform bool uForOpening;
+uniform bool uIsFullscreen;
 uniform float uProgress;
 uniform float uDuration;
 
@@ -168,14 +170,18 @@ float easeOutBack(float x, float e) {
 // --------------------------------------------------------------------- edge mask helpers
 
 // This method returns a mask which smoothly transitions towards zero when approaching
-// the window's borders. There is a variant which takes the transition area width in
+// the window's borders. If the window is currently maximized or in fullscreen mode, this
+// will return 1.0 everywhere. There is a variant which takes the transition area width in
 // pixels and one which takes this as a percentage.
 float getEdgeMask(vec2 uv, vec2 maxUV, float fadeWidth) {
   float mask = 1.0;
-  mask *= smoothstep(0.0, 1.0, clamp(uv.x / fadeWidth, 0.0, 1.0));
-  mask *= smoothstep(0.0, 1.0, clamp(uv.y / fadeWidth, 0.0, 1.0));
-  mask *= smoothstep(0.0, 1.0, clamp((maxUV.x - uv.x) / fadeWidth, 0.0, 1.0));
-  mask *= smoothstep(0.0, 1.0, clamp((maxUV.y - uv.y) / fadeWidth, 0.0, 1.0));
+
+  if (!uIsFullscreen) {
+    mask *= smoothstep(0.0, 1.0, clamp(uv.x / fadeWidth, 0.0, 1.0));
+    mask *= smoothstep(0.0, 1.0, clamp(uv.y / fadeWidth, 0.0, 1.0));
+    mask *= smoothstep(0.0, 1.0, clamp((maxUV.x - uv.x) / fadeWidth, 0.0, 1.0));
+    mask *= smoothstep(0.0, 1.0, clamp((maxUV.y - uv.y) / fadeWidth, 0.0, 1.0));
+  }
 
   return mask;
 }

src/Shader.js

@@ -75,11 +75,12 @@ var Shader = GObject.registerClass(
       this._time     = 0;
 
       // Store standard uniform locations.
-      this._uForOpening = this.get_uniform_location('uForOpening');
-      this._uProgress   = this.get_uniform_location('uProgress');
-      this._uDuration   = this.get_uniform_location('uDuration');
-      this._uSize       = this.get_uniform_location('uSize');
-      this._uPadding    = this.get_uniform_location('uPadding');
+      this._uForOpening   = this.get_uniform_location('uForOpening');
+      this._uIsFullscreen = this.get_uniform_location('uIsFullscreen');
+      this._uProgress     = this.get_uniform_location('uProgress');
+      this._uDuration     = this.get_uniform_location('uDuration');
+      this._uSize         = this.get_uniform_location('uSize');
+      this._uPadding      = this.get_uniform_location('uPadding');
 
       // Create a timeline to drive the animation.
       this._timeline = new Clutter.Timeline();
@@ -124,9 +125,13 @@ var Shader = GObject.registerClass(
       // This is not necessarily symmetric, but I haven't figured out a way to
       // get the actual values...
       const padding = (actor.width - actor.meta_window.get_frame_rect().width) / 2;
+      const isFullscreen =
+        actor.meta_window.get_maximized() === Meta.MaximizeFlags.BOTH ||
+        actor.meta_window.fullscreen;
 
       this.set_uniform_float(this._uPadding, 1, [padding]);
       this.set_uniform_float(this._uForOpening, 1, [forOpening]);
+      this.set_uniform_float(this._uIsFullscreen, 1, [isFullscreen]);
       this.set_uniform_float(this._uDuration, 1, [duration * 0.001]);
       this.set_uniform_float(this._uSize, 2, [actor.width, actor.height]);