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Bug 770033 - Part 2: Add order test for horizontal halfscaling code. r=jrmuizel

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This commit is contained in:
Bas Schouten 2012-07-04 20:21:27 +02:00
parent fa540edf39
commit d9db166712
1 changed files with 18 additions and 12 deletions
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30
gfx/2d/unittest/TestScaling.cpp
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@ -190,29 +190,35 @@ void
TestScaling::HorizontalHalfScale()
{
std::vector<uint8_t> data;
data.resize(500 * 500 * 4);
data.resize(520 * 500 * 4);
uint32_t *pixels = (uint32_t*)data.data();
for (int y = 0; y < 500; y += 2) {
for (int x = 0; x < 500; x += 2) {
pixels[y * 500 + x] = 0xff00ff00;
pixels[y * 500 + x + 1] = 0xff00ffff;
pixels[(y + 1) * 500 + x] = 0xff000000;
pixels[(y + 1) * 500 + x + 1] = 0xff0000ff;
for (int y = 0; y < 500; y ++) {
for (int x = 0; x < 520; x += 8) {
pixels[y * 520 + x] = 0xff00ff00;
pixels[y * 520 + x + 1] = 0xff00ffff;
pixels[y * 520 + x + 2] = 0xff000000;
pixels[y * 520 + x + 3] = 0xff0000ff;
pixels[y * 520 + x + 4] = 0xffff00ff;
pixels[y * 520 + x + 5] = 0xff0000ff;
pixels[y * 520 + x + 6] = 0xffffffff;
pixels[y * 520 + x + 7] = 0xff0000ff;
}
}
ImageHalfScaler scaler(data.data(), 500 * 4, IntSize(500, 500));
ImageHalfScaler scaler(data.data(), 520 * 4, IntSize(520, 500));
scaler.ScaleForSize(IntSize(240, 400));
VERIFY(scaler.GetSize().width == 250);
VERIFY(scaler.GetSize().width == 260);
VERIFY(scaler.GetSize().height == 500);
pixels = (uint32_t*)scaler.GetScaledData();
for (int y = 0; y < 500; y += 2) {
for (int x = 0; x < 250; x++) {
for (int y = 0; y < 500; y++) {
for (int x = 0; x < 260; x += 4) {
VERIFY(pixels[y * (scaler.GetStride() / 4) + x] == 0xff00ff7f);
VERIFY(pixels[(y + 1) * (scaler.GetStride() / 4) + x] == 0xff00007f);
VERIFY(pixels[y * (scaler.GetStride() / 4) + x + 1] == 0xff00007f);
VERIFY(pixels[y * (scaler.GetStride() / 4) + x + 2] == 0xff7f00ff);
VERIFY(pixels[y * (scaler.GetStride() / 4) + x + 3] == 0xff7f7fff);
}
}
}