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panfrost: Add unit tests for non-dithered clears 

Would have exposed the bug fixed in the previous commit. This is gnarly
stuff, let's not regress it.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12460>
This commit is contained in:
Alyssa Rosenzweig 2021-08-18 22:17:38 +00:00 committed by Marge Bot
parent 22538b89b3
commit 07cc5fd893
1 changed files with 43 additions and 3 deletions
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46
src/panfrost/lib/tests/test-clear.c
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@ -43,10 +43,15 @@ struct test {
static const struct test clear_tests[] = {
/* Basic tests */
{ PIPE_FORMAT_R8G8B8A8_UNORM, D, F(0.0, 0.0, 0.0, 0.0), RRRR(0x00000000) },
{ PIPE_FORMAT_R8G8B8A8_UNORM, _, F(0.0, 0.0, 0.0, 0.0), RRRR(0x00000000) },
{ PIPE_FORMAT_R8G8B8A8_UNORM, D, F(1.0, 0.0, 0.0, 1.0), RRRR(0xFF0000FF) },
{ PIPE_FORMAT_R8G8B8A8_UNORM, _, F(1.0, 0.0, 0.0, 1.0), RRRR(0xFF0000FF) },
{ PIPE_FORMAT_B8G8R8A8_UNORM, D, F(1.0, 0.0, 0.0, 1.0), RRRR(0xFF0000FF) },
{ PIPE_FORMAT_B8G8R8A8_UNORM, _, F(1.0, 0.0, 0.0, 1.0), RRRR(0xFF0000FF) },
{ PIPE_FORMAT_R8G8B8A8_UNORM, D, F(0.664, 0.0, 0.0, 0.0), RRRR(0x000000A9) },
{ PIPE_FORMAT_R8G8B8A8_UNORM, _, F(0.664, 0.0, 0.0, 0.0), RRRR(0x000000A9) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, D, F(0.664, 0.0, 0.0, 0.0), RRRR(0x0000009F) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.664, 0.0, 0.0, 0.0), RRRR(0x000000A0) },
/* Test rounding to nearest even. The values are cherrypicked to multiply
* out to a fractional part of 0.5. The first test should round down and
@ -55,6 +60,16 @@ static const struct test clear_tests[] = {
{ PIPE_FORMAT_R4G4B4A4_UNORM, D, F(0.41875, 0.0, 0.0, 1.0), RRRR(0xF0000064) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, D, F(0.40625, 0.0, 0.0, 1.0), RRRR(0xF0000062) },
/* Testing rounding direction when dithering is disabled. The packed value
* is what gets rounded. This behaves as round-to-even with the cutoff point
* at 2^-m + 2^-n for an m:n representation. */
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.03125, 0.0, 0.0, 1.0), RRRR(0xF0000000) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.03125, 0.0, 0.0, 1.0), RRRR(0xF0000000) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.03333, 0.0, 0.0, 1.0), RRRR(0xF0000000) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.03334, 0.0, 0.0, 1.0), RRRR(0xF0000010) },
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.09375, 0.0, 0.0, 1.0), RRRR(0xF0000010) },
/* Check all the special formats with different edge cases */
{ PIPE_FORMAT_R4G4B4A4_UNORM, D, F(0.127, 2.4, -1.0, 0.5), RRRR(0x7800F01E) },
@ -69,6 +84,14 @@ static const struct test clear_tests[] = {
{ PIPE_FORMAT_R10G10B10A2_UNORM, D, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFF2E2DF) },
{ PIPE_FORMAT_R8G8B8A8_SRGB, D, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFFF76DC) },
/* Check that values are padded when dithering is disabled */
{ PIPE_FORMAT_R4G4B4A4_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xF0F030B0) },
{ PIPE_FORMAT_R5G6B5_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0x3E02C2C0) },
{ PIPE_FORMAT_R5G5B5A1_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xBE0302C0) },
{ PIPE_FORMAT_R10G10B10A2_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFF2E2DF) },
{ PIPE_FORMAT_R8G8B8A8_SRGB, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFFF76DC) },
/* Check that blendable tilebuffer values are invariant under swizzling */
{ PIPE_FORMAT_B4G4R4A4_UNORM, D, F(0.127, 2.4, -1.0, 0.5), RRRR(0x7800F01E) },
@ -83,19 +106,36 @@ static const struct test clear_tests[] = {
{ PIPE_FORMAT_B10G10R10A2_UNORM, D, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFF2E2DF) },
{ PIPE_FORMAT_B8G8R8A8_SRGB, D, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFFF76DC) },
/* Check raw formats, which are not invariant under swizzling */
{ PIPE_FORMAT_B4G4R4A4_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xF0F030B0) },
{ PIPE_FORMAT_B5G6R5_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0x3E02C2C0) },
{ PIPE_FORMAT_B5G5R5A1_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xBE0302C0) },
{ PIPE_FORMAT_B10G10R10A2_UNORM, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFF2E2DF) },
{ PIPE_FORMAT_B8G8R8A8_SRGB, _, F(0.718, 0.18, 1.0, 2.0), RRRR(0xFFFF76DC) },
/* Check raw formats, which are not invariant under swizzling. Raw formats
* cannot be dithered. */
{ PIPE_FORMAT_R8G8B8A8_UINT, D, UI(0xCA, 0xFE, 0xBA, 0xBE), RRRR(0xBEBAFECA) },
{ PIPE_FORMAT_R8G8B8A8_UINT, _, UI(0xCA, 0xFE, 0xBA, 0xBE), RRRR(0xBEBAFECA) },
{ PIPE_FORMAT_B8G8R8A8_UINT, D, UI(0xCA, 0xFE, 0xBA, 0xBE), RRRR(0xBECAFEBA) },
{ PIPE_FORMAT_B8G8R8A8_UINT, _, UI(0xCA, 0xFE, 0xBA, 0xBE), RRRR(0xBECAFEBA) },
/* Check that larger raw formats are replicated correctly */
{ PIPE_FORMAT_R16G16B16A16_UINT, D, UI(0xCAFE, 0xBABE, 0xABAD, 0x1DEA),
RGRG(0xBABECAFE, 0x1DEAABAD) },
{ PIPE_FORMAT_R16G16B16A16_UINT, _, UI(0xCAFE, 0xBABE, 0xABAD, 0x1DEA),
RGRG(0xBABECAFE, 0x1DEAABAD) },
{ PIPE_FORMAT_R32G32B32A32_UINT, D,
UI(0xCAFEBABE, 0xABAD1DEA, 0xDEADBEEF, 0xABCDEF01),
{ 0xCAFEBABE, 0xABAD1DEA, 0xDEADBEEF, 0xABCDEF01 } },
{ PIPE_FORMAT_R32G32B32A32_UINT, _,
UI(0xCAFEBABE, 0xABAD1DEA, 0xDEADBEEF, 0xABCDEF01),
{ 0xCAFEBABE, 0xABAD1DEA, 0xDEADBEEF, 0xABCDEF01 } },
};
#define ASSERT_EQ(x, y) do { \
@ -103,8 +143,8 @@ static const struct test clear_tests[] = {
nr_pass++; \
} else { \
nr_fail++; \
fprintf(stderr, "%s: Assertion failed %s (%08X %08X %08X %08X) != %s (%08X %08X %08X %08X)\n", \
util_format_short_name(T.format), #x, x[0], x[1], x[2], x[3], #y, y[0], y[1], y[2], y[3]); \
fprintf(stderr, "%s%s: Assertion failed %s (%08X %08X %08X %08X) != %s (%08X %08X %08X %08X)\n", \
util_format_short_name(T.format), T.dithered ? " dithered" : "", #x, x[0], x[1], x[2], x[3], #y, y[0], y[1], y[2], y[3]); \
} \
} while(0)