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SSE2 anim blitter: fix edge case where medium path was used incorrectly.

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Jonathan G Rennison
2015-12-20 23:13:03 +00:00
parent e4ccfcf926
commit 897744ab47
1 changed files with 4 additions and 2 deletions
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6
src/blitter/32bpp_anim_sse2.cpp
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@@ -54,9 +54,11 @@ void Blitter_32bppSSE2_Anim::PaletteAnimate(const Palette &palette)
__m128i colour_data = _mm_and_si128(data, colour_mask); __m128i colour_data = _mm_and_si128(data, colour_mask);
/* test if any colour >= PALETTE_ANIM_START */ /* test if any colour >= PALETTE_ANIM_START */
if (unlikely(_mm_movemask_epi8(_mm_cmpgt_epi16(colour_data, anim_cmp)))) { int colour_cmp_result = _mm_movemask_epi8(_mm_cmpgt_epi16(colour_data, anim_cmp));
if (unlikely(colour_cmp_result)) {
/* test if any brightness is unexpected */ /* test if any brightness is unexpected */
if (unlikely(x < 8 || _mm_movemask_epi8(_mm_cmpeq_epi16(_mm_srli_epi16(data, 8), brightness_cmp)) != 0xFFFF)) { if (unlikely(x < 8 || colour_cmp_result != 0xFFFF ||
_mm_movemask_epi8(_mm_cmpeq_epi16(_mm_srli_epi16(data, 8), brightness_cmp)) != 0xFFFF)) {
/* slow path: < 8 pixels left or unexpected brightnesses */ /* slow path: < 8 pixels left or unexpected brightnesses */
for (int z = min<int>(x, 8); z != 0 ; z--) { for (int z = min<int>(x, 8); z != 0 ; z--) {
int value = _mm_extract_epi16(data, 0); int value = _mm_extract_epi16(data, 0);