diff options
Diffstat (limited to 'src/effects/RecursiveBlur.qml')
| -rw-r--r-- | src/effects/RecursiveBlur.qml | 84 |
1 files changed, 71 insertions, 13 deletions
diff --git a/src/effects/RecursiveBlur.qml b/src/effects/RecursiveBlur.qml index 935bb3c..4b44aff 100644 --- a/src/effects/RecursiveBlur.qml +++ b/src/effects/RecursiveBlur.qml @@ -58,16 +58,17 @@ Item { SourceProxy { id: sourceProxy input: rootItem.source + sourceRect: rootItem.transparentBorder ? Qt.rect(-1, -1, parent.width + 2, parent.height + 2) : Qt.rect(0, 0, 0, 0) } ShaderEffectSource { id: cacheItem - anchors.fill: parent + anchors.fill: verticalBlur smooth: true visible: rootItem.cached hideSource: visible live: true - sourceItem: blurItem + sourceItem: inputItem.visible ? inputItem : verticalBlur } Item { @@ -84,7 +85,7 @@ Item { recursionTimer.counter = 0 if (counter > 0) - recursiveSource.sourceItem = blurItem + recursiveSource.sourceItem = verticalBlur else recursiveSource.sourceItem = inputItem @@ -98,8 +99,37 @@ Item { ShaderEffect { id: inputItem property variant source: sourceProxy.output - anchors.fill: parent - visible: !blurItem.visible + property real expandX: rootItem.transparentBorder ? (horizontalBlur.maximumRadius) / horizontalBlur.width : 0.0 + property real expandY: rootItem.transparentBorder ? (horizontalBlur.maximumRadius) / horizontalBlur.height : 0.0 + + anchors.fill: verticalBlur + visible: !verticalBlur.visible + + vertexShader: " + attribute highp vec4 qt_Vertex; + attribute highp vec2 qt_MultiTexCoord0; + uniform highp mat4 qt_Matrix; + uniform highp float expandX; + uniform highp float expandY; + varying highp vec2 qt_TexCoord0; + + void main() { + mediump vec2 texCoord = qt_MultiTexCoord0; + texCoord.s = (texCoord.s - expandX) / (1.0 - 2.0 * expandX); + texCoord.t = (texCoord.t - expandY) / (1.0 - 2.0 * expandY); + qt_TexCoord0 = texCoord; + gl_Position = qt_Matrix * qt_Vertex; + } + " + + fragmentShader: " + varying mediump vec2 qt_TexCoord0; + uniform highp float qt_Opacity; + uniform sampler2D source; + void main() { + gl_FragColor = texture2D(source, qt_TexCoord0) * qt_Opacity; + } + " } ShaderEffectSource { @@ -114,15 +144,43 @@ Item { onScheduledUpdateCompleted: recursionTimer.nextFrame() } - GaussianBlur { - id: blurItem - visible: loops > 0 - anchors.fill: parent - radius: rootItem.radius - samples: Math.ceil(2.0 * rootItem.radius) + DirectionalGaussianBlur { + id: verticalBlur + x: rootItem.transparentBorder ? -horizontalBlur.maximumRadius - 1 : 0 + y: rootItem.transparentBorder ? -horizontalBlur.maximumRadius - 1 : 0 + width: horizontalBlur.width + 2 + height: horizontalBlur.height + 2 + + horizontalStep: 0.0 + verticalStep: 1.0 / parent.height + + source: ShaderEffectSource { + sourceItem: horizontalBlur + hideSource: true + visible: false + smooth: true + } + deviation: (radius + 1) / 2.3333 - transparentBorder: rootItem.transparentBorder - cached: false + radius: rootItem.radius + maximumRadius: Math.ceil(rootItem.radius) + transparentBorder: false + visible: loops > 0 + } + + DirectionalGaussianBlur { + id: horizontalBlur + width: rootItem.transparentBorder ? parent.width + 2 * maximumRadius + 2 : parent.width + height: rootItem.transparentBorder ? parent.height + 2 * maximumRadius + 2 : parent.height + + horizontalStep: 1.0 / parent.width + verticalStep: 0.0 + source: recursiveSource + deviation: (radius + 1) / 2.3333 + radius: rootItem.radius + maximumRadius: Math.ceil(rootItem.radius) + transparentBorder: false + visible: false } } |