Stretch small textures up to 16 pixels on PowerVR 54x

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 13ce5070a6047a9ada81f5a7cfdf7d59bcdeacb2..99bc6da1fa46ee4af69b53d10d445c0d99f34b96 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -294,6 +294,11 @@ void GrGLCaps::init(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {
     // attachment, hence this min:
     fMaxRenderTargetSize = SkTMin(fMaxTextureSize, fMaxRenderTargetSize);
 
+    // This GPU seems to have problems when tiling small textures
+    if (kPowerVR54x_GrGLRenderer == ctxInfo.renderer()) {
+        fMinTextureSize = 16;
+    }
+
     fGpuTracingSupport = ctxInfo.hasExtension("GL_EXT_debug_marker");
 
     // Disable scratch texture reuse on Mali and Adreno devices