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Add Pixel tests

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This commit is contained in:
Pavel Krajcevski 2013-08-31 16:06:00 -04:00
parent 8c2127c08a
commit 21199bc264
1 changed files with 93 additions and 0 deletions
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93
PVRTCEncoder/test/PixelTest.cpp
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@ -88,4 +88,97 @@ TEST(Pixel, FromBitsAndAssociatedConstructor) {
EXPECT_EQ(depth[j], 8);
}
}
const uint8 depth1[4] = { 3, 2, 0, 8 };
ps[0] = PVRTCC::Pixel(bits + 3, depth1);
ps[1].FromBits(bits + 3, depth1);
for(int i = 0; i < 2; i++) {
PVRTCC::Pixel &p = ps[i];
EXPECT_EQ(p.A(), 0x01);
EXPECT_EQ(p.R(), 0x00);
EXPECT_EQ(p.G(), 0xFF);
EXPECT_EQ(p.B(), 0x37);
uint8 depth[4];
p.GetBitDepth(depth);
EXPECT_EQ(depth[0], 3);
EXPECT_EQ(depth[1], 2);
EXPECT_EQ(depth[2], 0);
EXPECT_EQ(depth[3], 8);
}
const uint8 depth2[4] = { 5, 6, 2, 4 };
ps[0] = PVRTCC::Pixel(bits + 4, depth2, 2);
ps[1].FromBits(bits + 4, depth2, 2);
for(int i = 0; i < 2; i++) {
PVRTCC::Pixel &p = ps[i];
EXPECT_EQ(p.A(), 0x1E);
EXPECT_EQ(p.R(), 0x3A);
EXPECT_EQ(p.G(), 0x02);
EXPECT_EQ(p.B(), 0x00);
uint8 depth[4];
p.GetBitDepth(depth);
EXPECT_EQ(depth[0], 5);
EXPECT_EQ(depth[1], 6);
EXPECT_EQ(depth[2], 2);
EXPECT_EQ(depth[3], 4);
}
}
TEST(Pixel, ChangeChannelBitDepth) {
uint8 val = 0x43;
uint8 depth = 7;
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 8), 0x87);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 7), 0x43);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 6), 0x21);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 2), 0x2);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 0), 0xFF);
val = 0x3;
depth = 3;
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 8), 0x6D);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 6), 0x1B);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 3), 0x03);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 2), 0x01);
EXPECT_EQ(PVRTCC::Pixel::ChangeBitDepth(val, depth, 0), 0xFF);
}
TEST(Pixel, ChangePixelBitDepth) {
const uint8 bits[4] = { 0x86, 0xC0, 0x0, 0x0 };
const uint8 depth[4] = {7, 3, 0, 0};
PVRTCC::Pixel p(bits, depth);
const uint8 newDepth[4] = { 8, 8, 8, 8 };
p.ChangeBitDepth(newDepth);
EXPECT_EQ(p.A(), 0x87);
EXPECT_EQ(p.R(), 0x6D);
EXPECT_EQ(p.G(), 0xFF);
EXPECT_EQ(p.B(), 0xFF);
uint8 outDepth[4];
p.GetBitDepth(outDepth);
for(uint32 i = 0; i < 4; i++) {
EXPECT_EQ(outDepth[i], 8);
}
}
TEST(Pixel, PackRGBA) {
const uint8 bits[4] = { 0x86, 0xC0, 0x0, 0x0 };
const uint8 depth[4] = {7, 3, 0, 0};
PVRTCC::Pixel p(bits, depth);
uint32 val = p.PackRGBA();
EXPECT_EQ(val, 0x87FFFF6D);
}