From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Sat, 22 Mar 2014 15:12:47 +0000 (+0100)
Subject: Stop the FFTPassEffect Repeat test after FFT size 128.
X-Git-Tag: 1.1~23
X-Git-Url: https://git.sesse.net/?p=movit;a=commitdiff_plain;h=50e8a8eb0f3073a05b8ccc38c2409d832360db23

Stop the FFTPassEffect Repeat test after FFT size 128.

The reason is that the 256 test uses texture sizes of 256*31=7936,
and above ~3900, some cards (at least both my Intel and NVidia card)
start having accuracy issues on some sizes. The test happens not to
die on this for semi-obscure reasons, but that's mostly by accident,
and in any case, requiring 8k textures for a unit test might be
a bit on the upper side.
---

diff --git a/fft_pass_effect_test.cpp b/fft_pass_effect_test.cpp
index 284aa5f..7eafbd9 100644
--- a/fft_pass_effect_test.cpp
+++ b/fft_pass_effect_test.cpp
@@ -126,7 +126,7 @@ TEST(FFTPassEffectTest, SingleFrequency) {
 
 TEST(FFTPassEffectTest, Repeat) {
 	srand(12345);
-	for (int fft_size = 2; fft_size < 512; fft_size *= 2) {
+	for (int fft_size = 2; fft_size <= 128; fft_size *= 2) {
 		const int num_repeats = 31;  // Prime, to make things more challenging.
 		float data[num_repeats * fft_size * 4];
 		float expected_data[num_repeats * fft_size * 4], out_data[num_repeats * fft_size * 4];