-
Notifications
You must be signed in to change notification settings - Fork 2.1k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
cfefdb0
commit ce4c3d4
Showing
3 changed files
with
65 additions
and
16 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,62 @@ | ||
From af21bcd1ea595debd71a77e1e75ed185a31bf26c Mon Sep 17 00:00:00 2001 | ||
From: Hans Petter Jansson <hpj@hpjansson.org> | ||
Date: Wed, 19 Jun 2024 23:26:23 +0200 | ||
Subject: [PATCH] avx2: Fix compilation on 32-bit x86 | ||
|
||
Fixes #203 (GitHub). | ||
--- | ||
chafa/internal/chafa-avx2.c | 22 +++++++++++++++++----- | ||
1 file changed, 17 insertions(+), 5 deletions(-) | ||
|
||
diff --git a/chafa/internal/chafa-avx2.c b/chafa/internal/chafa-avx2.c | ||
index ae20830..7f11687 100644 | ||
--- a/chafa/internal/chafa-avx2.c | ||
+++ b/chafa/internal/chafa-avx2.c | ||
@@ -21,9 +21,21 @@ | ||
|
||
#include <emmintrin.h> | ||
#include <immintrin.h> | ||
+#include <smmintrin.h> | ||
#include "chafa.h" | ||
#include "internal/chafa-private.h" | ||
|
||
+/* _mm_extract_epi64() (pextrq) is not available in 32-bit mode. Work around | ||
+ * it. This needs to be a macro, as the compiler expects an integer constant | ||
+ * for n. */ | ||
+#if defined __x86_64__ && !defined __ILP32__ | ||
+# define extract_128_epi64(i, n) _mm_extract_epi64 ((i), (n)) | ||
+#else | ||
+# define extract_128_epi64(i, n) \ | ||
+ ((((guint64) _mm_extract_epi32 ((i), (n) * 2 + 1)) << 32) \ | ||
+ | _mm_extract_epi32 ((i), (n) * 2)) | ||
+#endif | ||
+ | ||
gint | ||
calc_error_avx2 (const ChafaPixel *pixels, const ChafaColorPair *color_pair, | ||
const guint32 *sym_mask_u32) | ||
@@ -96,14 +108,14 @@ calc_colors_avx2 (const ChafaPixel *pixels, ChafaColorAccum *accums_out, | ||
accum_bg_128 = _mm_add_epi16 (_mm256_extracti128_si256 (accum_bg, 0), | ||
_mm256_extracti128_si256 (accum_bg, 1)); | ||
((guint64 *) accums_out) [0] = | ||
- (guint64) _mm_extract_epi64 (accum_bg_128, 0) | ||
- + (guint64) _mm_extract_epi64 (accum_bg_128, 1); | ||
+ extract_128_epi64 (accum_bg_128, 0) | ||
+ + extract_128_epi64 (accum_bg_128, 1); | ||
|
||
accum_fg_128 = _mm_add_epi16 (_mm256_extracti128_si256 (accum_fg, 0), | ||
_mm256_extracti128_si256 (accum_fg, 1)); | ||
((guint64 *) accums_out) [1] = | ||
- (guint64) _mm_extract_epi64 (accum_fg_128, 0) | ||
- + (guint64) _mm_extract_epi64 (accum_fg_128, 1); | ||
+ extract_128_epi64 (accum_fg_128, 0) | ||
+ + extract_128_epi64 (accum_fg_128, 1); | ||
} | ||
|
||
/* 32768 divided by index. Divide by zero is defined as zero. */ | ||
@@ -143,5 +155,5 @@ chafa_color_accum_div_scalar_avx2 (ChafaColorAccum *accum, guint16 divisor) | ||
accum_128 = _mm_loadl_epi64 ((const __m128i *) accum); | ||
divisor_128 = _mm_set1_epi16 (invdiv16 [divisor]); | ||
accum_128 = _mm_mulhrs_epi16 (accum_128, divisor_128); | ||
- *((guint64 *) accum) = _mm_extract_epi64 (accum_128, 0); | ||
+ *((guint64 *) accum) = extract_128_epi64 (accum_128, 0); | ||
} |
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters