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SurfaceTexture: add a pixel tolerance to the tests.

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This change adds a default tolerance of 2 to all the pixel value checks
in the SurfaceTexture tests.

Change-Id: Id5a7cdffdfae16076e2daf4964a3326105b5ae2c
This commit is contained in:
Jamie Gennis 2011-06-13 13:41:01 -07:00
parent 72f6af8630
commit 824efa74e7
1 changed files with 9 additions and 5 deletions
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14
libs/gui/tests/SurfaceTexture_test.cpp
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@ -273,8 +273,12 @@ protected:
*outPgm = program; *outPgm = program;
} }
static int abs(int value) {
return value > 0 ? value : -value;
}
::testing::AssertionResult checkPixel(int x, int y, int r, ::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]; GLubyte pixel[4];
String8 msg; String8 msg;
glReadPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel); glReadPixels(x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
@ -288,22 +292,22 @@ protected:
return ::testing::AssertionFailure( return ::testing::AssertionFailure(
::testing::Message(msg.string())); ::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); 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()) { if (!msg.isEmpty()) {
msg += " "; msg += " ";
} }
msg += String8::format("g(%d isn't %d)", pixel[1], g); 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()) { if (!msg.isEmpty()) {
msg += " "; msg += " ";
} }
msg += String8::format("b(%d isn't %d)", pixel[2], b); 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()) { if (!msg.isEmpty()) {
msg += " "; msg += " ";
} }