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-rw-r--r--gfx/tests/gtest/TestSwizzle.cpp325
1 files changed, 325 insertions, 0 deletions
diff --git a/gfx/tests/gtest/TestSwizzle.cpp b/gfx/tests/gtest/TestSwizzle.cpp
new file mode 100644
index 0000000000..cc91840ebf
--- /dev/null
+++ b/gfx/tests/gtest/TestSwizzle.cpp
@@ -0,0 +1,325 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/gfx/Swizzle.h"
+
+using namespace mozilla;
+using namespace mozilla::gfx;
+
+TEST(Moz2D, PremultiplyData)
+{
+ 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,
+ };
+ const uint8_t check_argb[5 * 4] = {
+ 255, 0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 128,
+ };
+
+ PremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::B8G8R8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_bgra));
+
+ PremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::R8G8B8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_rgba));
+
+ PremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::A8R8G8B8, IntSize(5, 1));
+ 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,
+ };
+ const uint8_t check_argb[5 * 4] = {
+ 255, 0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 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));
+
+ func = PremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::A8R8G8B8);
+ func(in_bgra, out, 5);
+ EXPECT_TRUE(ArrayEqual(out, check_argb));
+}
+
+TEST(Moz2D, UnpremultiplyData)
+{
+ const uint8_t in_bgra[5 * 4] = {
+ 255, 255, 0, 255, // verify 255 alpha leaves RGB unchanged
+ 0, 0, 255, 255, 0, 0, 0, 0, // verify 0 alpha leaves RGB at 0
+ 0, 0, 0, 64, // verify 0 RGB stays 0 with non-zero alpha
+ 128, 0, 0, 128, // verify that RGB == alpha maps to 255
+
+ };
+ 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, 64, 255, 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, 64, 0, 0, 255, 128,
+ };
+ const uint8_t check_argb[5 * 4] = {
+ 255, 0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 128, 0, 0, 255,
+ };
+
+ UnpremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::B8G8R8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_bgra));
+
+ UnpremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::R8G8B8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_rgba));
+
+ UnpremultiplyData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(in_bgra), SurfaceFormat::A8R8G8B8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_argb));
+}
+
+TEST(Moz2D, UnpremultiplyRow)
+{
+ const uint8_t in_bgra[5 * 4] = {
+ 255, 255, 0, 255, // verify 255 alpha leaves RGB unchanged
+ 0, 0, 255, 255, 0, 0, 0, 0, // verify 0 alpha leaves RGB at 0
+ 0, 0, 0, 64, // verify 0 RGB stays 0 with non-zero alpha
+ 128, 0, 0, 128, // verify that RGB == alpha maps to 255
+
+ };
+ 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, 64, 255, 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, 64, 0, 0, 255, 128,
+ };
+ const uint8_t check_argb[5 * 4] = {
+ 255, 0, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 128, 0, 0, 255,
+ };
+
+ SwizzleRowFn func =
+ UnpremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::B8G8R8A8);
+ func(in_bgra, out, 5);
+ EXPECT_TRUE(ArrayEqual(out, check_bgra));
+
+ func = UnpremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8A8);
+ func(in_bgra, out, 5);
+ EXPECT_TRUE(ArrayEqual(out, check_rgba));
+
+ func = UnpremultiplyRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::A8R8G8B8);
+ func(in_bgra, out, 5);
+ EXPECT_TRUE(ArrayEqual(out, check_argb));
+}
+
+TEST(Moz2D, SwizzleData)
+{
+ 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 copy
+ const uint8_t check_bgra[5 * 4] = {
+ 253, 254, 0, 255, 0, 0, 255, 255, 0, 0, 0, 0, 1, 2, 3, 64, 127, 0, 9, 128,
+ };
+ // 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,
+ };
+ const uint8_t check_argb[5 * 4] = {
+ 255, 0, 254, 253, 255, 255, 0, 0, 0, 0, 0, 0, 64, 3, 2, 1, 128, 9, 0, 127,
+ };
+ // 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 packing
+ uint8_t out24[5 * 3];
+ const uint8_t check_bgr[5 * 3] = {253, 254, 0, 0, 0, 255, 0, 0,
+ 0, 1, 2, 3, 127, 0, 9};
+ const uint8_t check_rgb[5 * 3] = {
+ 0, 254, 253, 255, 0, 0, 0, 0, 0, 3, 2, 1, 9, 0, 127,
+ };
+ uint8_t out8[5];
+ const uint8_t check_a[5] = {255, 255, 0, 64, 128};
+ uint16_t out16[5];
+#define PACK_RGB565(b, g, r) \
+ (((b & 0xF8) >> 3) | ((g & 0xFC) << 3) | ((r & 0xF8) << 8))
+ const uint16_t check_16[5] = {
+ PACK_RGB565(253, 254, 0), PACK_RGB565(0, 0, 255), PACK_RGB565(0, 0, 0),
+ PACK_RGB565(1, 2, 3), PACK_RGB565(127, 0, 9),
+ };
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(out), SurfaceFormat::B8G8R8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_bgra));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(out), SurfaceFormat::R8G8B8A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_rgba));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(out), SurfaceFormat::A8R8G8B8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_argb));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out,
+ sizeof(out), SurfaceFormat::R8G8B8X8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out, check_rgbx));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out24,
+ sizeof(out24), SurfaceFormat::B8G8R8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out24, check_bgr));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out24,
+ sizeof(out24), SurfaceFormat::R8G8B8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out24, check_rgb));
+
+ SwizzleData(in_bgra, sizeof(in_bgra), SurfaceFormat::B8G8R8A8, out8,
+ sizeof(out8), SurfaceFormat::A8, IntSize(5, 1));
+ EXPECT_TRUE(ArrayEqual(out8, check_a));
+
+ SwizzleData(SurfaceFormat::A8R8G8B8_UINT32 == SurfaceFormat::A8R8G8B8
+ ? check_argb
+ : check_bgra,
+ sizeof(in_bgra), SurfaceFormat::A8R8G8B8_UINT32,
+ reinterpret_cast<uint8_t*>(out16), sizeof(out16),
+ 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 packing
+ uint8_t out24[5 * 3];
+ const uint8_t check_bgr[5 * 3] = {253, 254, 0, 0, 0, 255, 0, 0,
+ 0, 1, 2, 3, 127, 0, 9};
+ const uint8_t check_rgb[5 * 3] = {
+ 0, 254, 253, 255, 0, 0, 0, 0, 0, 3, 2, 1, 9, 0, 127,
+ };
+ // 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,
+ };
+ const uint8_t check_unpack_xrgb[16 * 4] = {
+ 255, 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,
+ };
+
+ 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::B8G8R8A8, SurfaceFormat::B8G8R8A8);
+ func(in_bgra, out, 5);
+ EXPECT_TRUE(ArrayEqual(out, in_bgra));
+
+ func = SwizzleRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::B8G8R8);
+ func(in_bgra, out24, 5);
+ EXPECT_TRUE(ArrayEqual(out24, check_bgr));
+
+ func = SwizzleRow(SurfaceFormat::B8G8R8A8, SurfaceFormat::R8G8B8);
+ func(in_bgra, out24, 5);
+ EXPECT_TRUE(ArrayEqual(out24, check_rgb));
+
+ 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));
+
+ func = SwizzleRow(SurfaceFormat::R8G8B8, SurfaceFormat::X8R8G8B8);
+ func(in_rgb, out_unpack, 16);
+ EXPECT_TRUE(ArrayEqual(out_unpack, check_unpack_xrgb));
+
+ 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_xrgb));
+}
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