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authorJeff Epler <jeff@adafruit.com>2021-03-15 13:50:49 -0500
committerGitHub <noreply@github.com>2021-03-15 13:50:49 -0500
commit05ed179e11599dd45a76dfb14ecf624d0ff96d68 (patch)
treea046c6d1f117814168150484ed1bf7840d3400d7 /shared-module/bitops
parent3cbff45f9aac5ea2855bbc888083d356a91c80fe (diff)
parentf9b4189b4c640823dabb76de8effd2a836da2eb0 (diff)
Merge pull request #4362 from microDev1/code-formatting
Add code formatting and translations check
Diffstat (limited to 'shared-module/bitops')
-rw-r--r--shared-module/bitops/__init__.c126
1 files changed, 71 insertions, 55 deletions
diff --git a/shared-module/bitops/__init__.c b/shared-module/bitops/__init__.c
index cf0ac7bd1..168989218 100644
--- a/shared-module/bitops/__init__.c
+++ b/shared-module/bitops/__init__.c
@@ -49,49 +49,53 @@
static void transpose_var(uint32_t *result, const uint8_t *src, int src_stride, int num_strands) {
uint32_t x = 0, y = 0, t;
- src += (num_strands-1) * src_stride;
-
- switch(num_strands) {
- case 7:
- x |= *src << 16;
- src -= src_stride;
- FALLTHROUGH;
- case 6:
- x |= *src << 8;
- src -= src_stride;
- FALLTHROUGH;
- case 5:
- x |= *src;
- src -= src_stride;
- FALLTHROUGH;
- case 4:
- y |= *src << 24;
- src -= src_stride;
- FALLTHROUGH;
- case 3:
- y |= *src << 16;
- src -= src_stride;
- FALLTHROUGH;
- case 2:
- y |= *src << 8;
- src -= src_stride;
- y |= *src;
+ src += (num_strands - 1) * src_stride;
+
+ switch (num_strands) {
+ case 7:
+ x |= *src << 16;
+ src -= src_stride;
+ FALLTHROUGH;
+ case 6:
+ x |= *src << 8;
+ src -= src_stride;
+ FALLTHROUGH;
+ case 5:
+ x |= *src;
+ src -= src_stride;
+ FALLTHROUGH;
+ case 4:
+ y |= *src << 24;
+ src -= src_stride;
+ FALLTHROUGH;
+ case 3:
+ y |= *src << 16;
+ src -= src_stride;
+ FALLTHROUGH;
+ case 2:
+ y |= *src << 8;
+ src -= src_stride;
+ y |= *src;
}
- t = (x ^ (x >> 7)) & 0x00AA00AA; x = x ^ t ^ (t << 7);
- t = (y ^ (y >> 7)) & 0x00AA00AA; y = y ^ t ^ (t << 7);
+ t = (x ^ (x >> 7)) & 0x00AA00AA;
+ x = x ^ t ^ (t << 7);
+ t = (y ^ (y >> 7)) & 0x00AA00AA;
+ y = y ^ t ^ (t << 7);
- t = (x ^ (x >>14)) & 0x0000CCCC; x = x ^ t ^ (t <<14);
- t = (y ^ (y >>14)) & 0x0000CCCC; y = y ^ t ^ (t <<14);
+ t = (x ^ (x >> 14)) & 0x0000CCCC;
+ x = x ^ t ^ (t << 14);
+ t = (y ^ (y >> 14)) & 0x0000CCCC;
+ y = y ^ t ^ (t << 14);
t = (x & 0xF0F0F0F0) | ((y >> 4) & 0x0F0F0F0F);
y = ((x << 4) & 0xF0F0F0F0) | (y & 0x0F0F0F0F);
x = t;
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
x = __builtin_bswap32(x);
y = __builtin_bswap32(y);
-#endif
+ #endif
result[0] = x;
result[1] = y;
}
@@ -99,35 +103,47 @@ static void transpose_var(uint32_t *result, const uint8_t *src, int src_stride,
static void transpose_8(uint32_t *result, const uint8_t *src, int src_stride) {
uint32_t x, y, t;
- y = *src; src += src_stride;
- y |= (*src << 8); src += src_stride;
- y |= (*src << 16); src += src_stride;
- y |= (*src << 24); src += src_stride;
- x = *src; src += src_stride;
- x |= (*src << 8); src += src_stride;
- x |= (*src << 16); src += src_stride;
- x |= (*src << 24); src += src_stride;
-
- t = (x ^ (x >> 7)) & 0x00AA00AA; x = x ^ t ^ (t << 7);
- t = (y ^ (y >> 7)) & 0x00AA00AA; y = y ^ t ^ (t << 7);
-
- t = (x ^ (x >>14)) & 0x0000CCCC; x = x ^ t ^ (t <<14);
- t = (y ^ (y >>14)) & 0x0000CCCC; y = y ^ t ^ (t <<14);
+ y = *src;
+ src += src_stride;
+ y |= (*src << 8);
+ src += src_stride;
+ y |= (*src << 16);
+ src += src_stride;
+ y |= (*src << 24);
+ src += src_stride;
+ x = *src;
+ src += src_stride;
+ x |= (*src << 8);
+ src += src_stride;
+ x |= (*src << 16);
+ src += src_stride;
+ x |= (*src << 24);
+ src += src_stride;
+
+ t = (x ^ (x >> 7)) & 0x00AA00AA;
+ x = x ^ t ^ (t << 7);
+ t = (y ^ (y >> 7)) & 0x00AA00AA;
+ y = y ^ t ^ (t << 7);
+
+ t = (x ^ (x >> 14)) & 0x0000CCCC;
+ x = x ^ t ^ (t << 14);
+ t = (y ^ (y >> 14)) & 0x0000CCCC;
+ y = y ^ t ^ (t << 14);
t = (x & 0xF0F0F0F0) | ((y >> 4) & 0x0F0F0F0F);
y = ((x << 4) & 0xF0F0F0F0) | (y & 0x0F0F0F0F);
x = t;
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+ #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
x = __builtin_bswap32(x);
y = __builtin_bswap32(y);
-#endif
+ #endif
result[0] = x;
result[1] = y;
}
static void bit_transpose_8(uint32_t *result, const uint8_t *src, size_t src_stride, size_t n) {
- for(size_t i=0; i<n; i++) {
+ for (size_t i = 0; i < n; i++) {
transpose_8(result, src, src_stride);
result += 2;
src += 1;
@@ -135,7 +151,7 @@ static void bit_transpose_8(uint32_t *result, const uint8_t *src, size_t src_str
}
static void bit_transpose_var(uint32_t *result, const uint8_t *src, size_t src_stride, size_t n, int num_strands) {
- for(size_t i=0; i<n; i++) {
+ for (size_t i = 0; i < n; i++) {
transpose_var(result, src, src_stride, num_strands);
result += 2;
src += 1;
@@ -143,9 +159,9 @@ static void bit_transpose_var(uint32_t *result, const uint8_t *src, size_t src_s
}
void common_hal_bitops_bit_transpose(uint8_t *result, const uint8_t *src, size_t inlen, size_t num_strands) {
- if(num_strands == 8) {
- bit_transpose_8((uint32_t*)(void*)result, src, inlen/8, inlen/8);
- } else {
- bit_transpose_var((uint32_t*)(void*)result, src, inlen/num_strands, inlen/num_strands, num_strands);
+ if (num_strands == 8) {
+ bit_transpose_8((uint32_t *)(void *)result, src, inlen / 8, inlen / 8);
+ } else {
+ bit_transpose_var((uint32_t *)(void *)result, src, inlen / num_strands, inlen / num_strands, num_strands);
}
}