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Bug 1551088 - Part 4. Add gtests for PremultiplyRow and SwizzleRow. r=lsalzman

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Differential Revision: https://phabricator.services.mozilla.com/D46447

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Andrew Osmond 2019-09-24 20:42:44 +00:00
parent a8427d01de
commit 94b66bc792
1 changed files with 93 additions and 0 deletions
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93
gfx/tests/gtest/TestSwizzle.cpp
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@ -45,6 +45,34 @@ TEST(Moz2D, PremultiplyData)
EXPECT_TRUE(ArrayEqual(out, check_argb));
}
TEST(Moz2D, PremultiplyRow)
{
const uint8_t in_bgra[5 * 4] = {
255, 255, 0, 255, // verify 255 alpha leaves RGB unchanged
0, 0, 255, 255,
0, 255, 255, 0, // verify 0 alpha zeroes out RGB
0, 0, 0, 0,
255, 0, 0, 128, // verify that 255 RGB maps to alpha
};
uint8_t out[5 * 4];
const uint8_t check_bgra[5 * 4] = {
255, 255, 0, 255, 0, 0, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 128,
};
// check swizzled output
const uint8_t check_rgba[5 * 4] = {
0, 255, 255, 255, 255, 0, 0, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 128,
};
SwizzleRowFn func =
PremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::B8G8R8A8);
func(in_bgra, out, 5);
EXPECT_TRUE(ArrayEqual(out, check_bgra));
func = PremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8A8);
func(in_bgra, out, 5);
EXPECT_TRUE(ArrayEqual(out, check_rgba));
}
TEST(Moz2D, UnpremultiplyData)
{
const uint8_t in_bgra[5 * 4] = {
@ -155,3 +183,68 @@ TEST(Moz2D, SwizzleData)
SurfaceFormat::R5G6B5_UINT16, IntSize(5, 1));
EXPECT_TRUE(ArrayEqual(out16, check_16));
}
TEST(Moz2D, SwizzleRow)
{
const uint8_t in_bgra[5 * 4] = {
253, 254, 0, 255, 0, 0, 255, 255, 0, 0, 0, 0, 1, 2, 3, 64, 127, 0, 9, 128,
};
uint8_t out[5 * 4];
// check swaps
const uint8_t check_rgba[5 * 4] = {
0, 254, 253, 255, 255, 0, 0, 255, 0, 0, 0, 0, 3, 2, 1, 64, 9, 0, 127, 128,
};
// check opaquifying
const uint8_t check_rgbx[5 * 4] = {
0, 254, 253, 255, 255, 0, 0, 255, 0, 0,
0, 255, 3, 2, 1, 255, 9, 0, 127, 255,
};
// check unpacking
uint8_t out_unpack[16 * 4];
const uint8_t in_rgb[16 * 3] = {
0, 254, 253, 255, 0, 0, 0, 0, 0, 3, 2, 1,
9, 0, 127, 4, 5, 6, 9, 8, 7, 10, 11, 12,
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
};
const uint8_t check_unpack_rgbx[16 * 4] = {
0, 254, 253, 255, 255, 0, 0, 255, 0, 0, 0, 255, 3, 2, 1, 255,
9, 0, 127, 255, 4, 5, 6, 255, 9, 8, 7, 255, 10, 11, 12, 255,
13, 14, 15, 255, 16, 17, 18, 255, 19, 20, 21, 255, 22, 23, 24, 255,
25, 26, 27, 255, 28, 29, 30, 255, 31, 32, 33, 255, 34, 35, 36, 255,
};
const uint8_t check_unpack_bgrx[16 * 4] = {
253, 254, 0, 255, 0, 0, 255, 255, 0, 0, 0, 255, 1, 2, 3, 255,
127, 0, 9, 255, 6, 5, 4, 255, 7, 8, 9, 255, 12, 11, 10, 255,
15, 14, 13, 255, 18, 17, 16, 255, 21, 20, 19, 255, 24, 23, 22, 255,
27, 26, 25, 255, 30, 29, 28, 255, 33, 32, 31, 255, 36, 35, 34, 255,
};
SwizzleRowFn func =
SwizzleRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8A8);
func(in_bgra, out, 5);
EXPECT_TRUE(ArrayEqual(out, check_rgba));
func = SwizzleRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8X8);
func(in_bgra, out, 5);
EXPECT_TRUE(ArrayEqual(out, check_rgbx));
func = SwizzleRow(SurfaceFormat::R8G8B8, SurfaceFormat::B8G8R8X8);
func(in_rgb, out_unpack, 16);
EXPECT_TRUE(ArrayEqual(out_unpack, check_unpack_bgrx));
memset(out_unpack, 0xE5, sizeof(out_unpack));
memcpy(out_unpack, in_rgb, sizeof(in_rgb));
func(out_unpack, out_unpack, 16);
EXPECT_TRUE(ArrayEqual(out_unpack, check_unpack_bgrx));
func = SwizzleRow(SurfaceFormat::R8G8B8, SurfaceFormat::R8G8B8X8);
func(in_rgb, out_unpack, 16);
EXPECT_TRUE(ArrayEqual(out_unpack, check_unpack_rgbx));
memset(out_unpack, 0xE5, sizeof(out_unpack));
memcpy(out_unpack, in_rgb, sizeof(in_rgb));
func(out_unpack, out_unpack, 16);
EXPECT_TRUE(ArrayEqual(out_unpack, check_unpack_rgbx));
}