pyrox.dev
libyuv: Apply patch to fix ARGBToRGB565DitherRow_C on big-endian
Makes LibYUVConvertTest.Test{,No}Dither pass.
+32
pkgs/by-name/li/libyuv/dither-honour-byte-order.patch
+32
pkgs/by-name/li/libyuv/dither-honour-byte-order.patch
···
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+
diff '--color=auto' -ruN a/source/row_common.cc b/source/row_common.cc
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--- a/source/row_common.cc 2025-07-15 17:55:24.611751521 +0200
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+++ b/source/row_common.cc 2025-07-15 18:01:57.808312551 +0200
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@@ -104,8 +104,13 @@
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#if defined(__x86_64__) || defined(_M_X64) || defined(__i386__) || \
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defined(_M_IX86) || defined(__arm__) || defined(_M_ARM) || \
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(defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
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+#define WRITE16(p, v) *(uint16_t*)(p) = v
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#define WRITEWORD(p, v) *(uint32_t*)(p) = v
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#else
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+static inline void WRITE16(uint8_t* p, uint16_t v) {
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+ p[0] = (uint8_t)(v & 255);
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+ p[1] = (uint8_t)((v >> 8) & 255);
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+}
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static inline void WRITEWORD(uint8_t* p, uint32_t v) {
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p[0] = (uint8_t)(v & 255);
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p[1] = (uint8_t)((v >> 8) & 255);
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@@ -408,10 +413,10 @@
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uint8_t b1 = STATIC_CAST(uint8_t, clamp255(src_argb[4] + dither1) >> 3);
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uint8_t g1 = STATIC_CAST(uint8_t, clamp255(src_argb[5] + dither1) >> 2);
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uint8_t r1 = STATIC_CAST(uint8_t, clamp255(src_argb[6] + dither1) >> 3);
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- *(uint16_t*)(dst_rgb + 0) =
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- STATIC_CAST(uint16_t, b0 | (g0 << 5) | (r0 << 11));
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- *(uint16_t*)(dst_rgb + 2) =
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- STATIC_CAST(uint16_t, b1 | (g1 << 5) | (r1 << 11));
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+ WRITE16((dst_rgb + 0),
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+ STATIC_CAST(uint16_t, b0 | (g0 << 5) | (r0 << 11)));
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+ WRITE16((dst_rgb + 2),
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+ STATIC_CAST(uint16_t, b1 | (g1 << 5) | (r1 << 11)));
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dst_rgb += 4;
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src_argb += 8;
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+
}
+5
pkgs/by-name/li/libyuv/package.nix
+5
pkgs/by-name/li/libyuv/package.nix