Consolidate read/write-Pixels testing code - take 2

Change-Id: I0de058a9eec749a7086138ac2eb79732f06ce55e
Reviewed-on: https://skia-review.googlesource.com/7650
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/TestUtils.h b/tests/TestUtils.h
new file mode 100644
index 0000000000..7c3370ed7e
--- /dev/null
+++ b/tests/TestUtils.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "Test.h"
+
+#if SK_SUPPORT_GPU
+
+class GrSurfaceContext;
+class GrSurfaceProxy;
+
+// Ensure that reading back from 'srcContext' as RGBA 8888 matches 'expectedPixelValues
+void test_read_pixels(skiatest::Reporter* reporter, GrContext* context,
+                      GrSurfaceContext* srcContext, uint32_t expectedPixelValues[],
+                      const char* testName);
+
+// See if trying to write RGBA 8888 pixels to 'dstContext' matches matches the
+// expectation ('expectedToWork')
+void test_write_pixels(skiatest::Reporter* reporter, GrContext* context,
+                       GrSurfaceContext* srcContext, bool expectedToWork, const char* testName);
+
+// Ensure that the pixels can be copied from 'proxy' to an RGBA 8888 destination (both
+// texture-backed and rendertarget-backed).
+void test_copy_from_surface(skiatest::Reporter* reporter, GrContext* context,
+                            GrSurfaceProxy* proxy, uint32_t expectedPixelValues[],
+                            bool onlyTestRTConfig, const char* testName);
+
+// Ensure that RGBA 8888 pixels can be copied into 'dstContext'
+void test_copy_to_surface(skiatest::Reporter* reporter, GrContext* context,
+                          GrSurfaceContext* dstContext, const char* testName);
+#endif