SurfaceTexture: add a pixel tolerance to the tests.
This change adds a default tolerance of 2 to all the pixel value checks
in the SurfaceTexture tests.
Change-Id: Id5a7cdffdfae16076e2daf4964a3326105b5ae2c
diff --git a/libs/gui/tests/SurfaceTexture_test.cpp b/libs/gui/tests/SurfaceTexture_test.cpp
index 16280d2..fdb6f52 100644
--- a/libs/gui/tests/SurfaceTexture_test.cpp
+++ b/libs/gui/tests/SurfaceTexture_test.cpp
@@ -273,8 +273,12 @@
*outPgm = program;
}
+ static int abs(int value) {
+ return value > 0 ? value : -value;
+ }
+
::testing::AssertionResult checkPixel(int x, int y, int r,
- int g, int b, int a) {
+ int g, int b, int a, int tolerance=2) {
GLubyte pixel[4];
String8 msg;
glReadPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
@@ -288,22 +292,22 @@
return ::testing::AssertionFailure(
::testing::Message(msg.string()));
}
- if (r >= 0 && GLubyte(r) != pixel[0]) {
+ if (r >= 0 && abs(r - int(pixel[0])) > tolerance) {
msg += String8::format("r(%d isn't %d)", pixel[0], r);
}
- if (g >= 0 && GLubyte(g) != pixel[1]) {
+ if (g >= 0 && abs(g - int(pixel[1])) > tolerance) {
if (!msg.isEmpty()) {
msg += " ";
}
msg += String8::format("g(%d isn't %d)", pixel[1], g);
}
- if (b >= 0 && GLubyte(b) != pixel[2]) {
+ if (b >= 0 && abs(b - int(pixel[2])) > tolerance) {
if (!msg.isEmpty()) {
msg += " ";
}
msg += String8::format("b(%d isn't %d)", pixel[2], b);
}
- if (a >= 0 && GLubyte(a) != pixel[3]) {
+ if (a >= 0 && abs(a - int(pixel[3])) > tolerance) {
if (!msg.isEmpty()) {
msg += " ";
}