Avoid uninitialized values in draw tests

Change-Id: I03433fafa3b7229495f5f869859949073f6be47a

diff --git a/modules/gles3/functional/es3fDrawTests.cpp b/modules/gles3/functional/es3fDrawTests.cpp
index 54f0ece..f3a1e37 100644 (file)
--- a/modules/gles3/functional/es3fDrawTests.cpp
+++ b/modules/gles3/functional/es3fDrawTests.cpp
@@ -780,22 +780,30 @@ bool InstancedGridRenderTest::verifyImage (const tcu::Surface& image)
        tcu::Surface error                      (image.getWidth(), image.getHeight());
        bool isOk                                       = true;
 
-       for (int y = 1; y < image.getHeight()-1; y++)
-       for (int x = 1; x < image.getWidth()-1; x++)
+       for (int y = 0; y < image.getHeight(); y++)
+       for (int x = 0; x < image.getWidth(); x++)
        {
-               const tcu::RGBA pixel = image.getPixel(x, y);
-               bool pixelOk = true;
+               if (x == 0 || y == 0 || y + 1 == image.getHeight() || x + 1 == image.getWidth())
+               {
+                       // Background color might bleed in at the borders with msaa
+                       error.setPixel(x, y, tcu::RGBA(0, 255, 0, 255));
+               }
+               else
+               {
+                       const tcu::RGBA pixel = image.getPixel(x, y);
+                       bool pixelOk = true;
 
-               // Any pixel with !(G ~= 255) is faulty (not a linear combinations of green and yellow)
-               if (de::abs(pixel.getGreen() - 255) > colorThreshold)
-                       pixelOk = false;
+                       // Any pixel with !(G ~= 255) is faulty (not a linear combinations of green and yellow)
+                       if (de::abs(pixel.getGreen() - 255) > colorThreshold)
+                               pixelOk = false;
 
-               // Any pixel with !(B ~= 0) is faulty (not a linear combinations of green and yellow)
-               if (de::abs(pixel.getBlue() - 0) > colorThreshold)
-                       pixelOk = false;
+                       // Any pixel with !(B ~= 0) is faulty (not a linear combinations of green and yellow)
+                       if (de::abs(pixel.getBlue() - 0) > colorThreshold)
+                               pixelOk = false;
 
-               error.setPixel(x, y, (pixelOk) ? (tcu::RGBA(0, 255, 0, 255)) : (tcu::RGBA(255, 0, 0, 255)));
-               isOk = isOk && pixelOk;
+                       error.setPixel(x, y, (pixelOk) ? (tcu::RGBA(0, 255, 0, 255)) : (tcu::RGBA(255, 0, 0, 255)));
+                       isOk = isOk && pixelOk;
+               }
        }
 
        if (!isOk)