tests: Add avm2/pixelbender_div test

Author: kjarosh

tests/tests/swfs/avm2/pixelbender_div/Test.as

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+package {
+import flash.display.*;
+import flash.geom.*;
+
+public class Test extends MovieClip {
+    [Embed(source = "div.pbj", mimeType="application/octet-stream")]
+    public static var ShaderBytes: Class;
+
+    public function Test() {
+        testParameter(4.0, 4.0);
+        testParameter(2.0, 8.0);
+        testParameter(2.0, 16.0);
+        testParameter(2.0, 8.0);
+        testParameter(8.0, 1.0);
+        testParameter(8.0, 2.0);
+        testParameter(-8.0, -2.0);
+        testParameter(-2.0, -8.0);
+        testParameter(0.0, 2.0);
+        testParameter(2.5, 8.0);
+        testParameter(2.1, 8.0);
+        testParameter(2.9, 8.0);
+    }
+
+    private function testParameter(left:Number, right:Number) {
+        trace("Input: " + left + ", " + right);
+        var input = new BitmapData(1, 1);
+        var shaderJob = new ShaderJob(new Shader(new ShaderBytes()), input);
+
+        shaderJob.shader.data.inputLeft.value = [left];
+        shaderJob.shader.data.inputRight.value = [right];
+
+        try {
+            shaderJob.start(true);
+            trace("Result: " + input.getPixel32(0, 0).toString(16));
+        } catch (e) {
+            trace("Error while starting: " + e);
+        }
+        trace("=================");
+    }
+}
+}

tests/tests/swfs/avm2/pixelbender_div/div.pbj

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+<languageVersion : 1.0;>
+
+kernel div
+<   namespace : "Ruffle Tests";
+    vendor : "Kamil Jarosz";
+    version : 1;
+>
+{
+    input image4 src;
+    output pixel4 dst;
+
+    parameter float inputLeft
+    <
+        defaultValue:1.0;
+    >;
+
+    parameter float inputRight
+    <
+        defaultValue:1.0;
+    >;
+
+    void
+    evaluatePixel()
+    {
+        dst = pixel4(float(int(inputLeft)/int(inputRight))/256.0, inputLeft/inputRight, inputLeft/2.0, 1);
+    }
+}

tests/tests/swfs/avm2/pixelbender_div/div.pbk

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+Input: 4, 4
+Result: ff01ffff
+=================
+Input: 2, 8
+Result: ff0040ff
+=================
+Input: 2, 16
+Result: ff0020ff
+=================
+Input: 2, 8
+Result: ff0040ff
+=================
+Input: 8, 1
+Result: ff08ffff
+=================
+Input: 8, 2
+Result: ff04ffff
+=================
+Input: -8, -2
+Result: ff04ff00
+=================
+Input: -2, -8
+Result: ff004000
+=================
+Input: 0, 2
+Result: ff000000
+=================
+Input: 2.5, 8
+Result: ff0050ff
+=================
+Input: 2.1, 8
+Result: ff0043ff
+=================
+Input: 2.9, 8
+Result: ff005cff
+=================

tests/tests/swfs/avm2/pixelbender_div/output.txt

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+num_ticks = 1
+
+[player_options]
+with_renderer = { optional = false, sample_count = 4 }