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Fix cast resulting in large color values

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This commit is contained in:
Ian Gulliver
2017-08-08 22:52:29 -07:00
parent 9fc6c355ff
commit 85584cfb5b
1 changed files with 6 additions and 6 deletions
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12
piraw.h
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@@ -99,12 +99,12 @@ constexpr typename PiRaw<X, Y, D, A, P>::Chunk PiRaw<X, Y, D, A, P>::GetChunk(co
// Function is bit depth & layout specific
static_assert(D == 10);
auto start = y * GetRowBytes() + x_chunk * GetChunkBytes();
auto high0 = static_cast<uint32_t>(raw.at(start + 0));
auto high1 = static_cast<uint32_t>(raw.at(start + 1));
auto high2 = static_cast<uint32_t>(raw.at(start + 2));
auto high3 = static_cast<uint32_t>(raw.at(start + 3));
auto packed_low = static_cast<uint32_t>(raw.at(start + 4));
uint32_t start = y * GetRowBytes() + x_chunk * GetChunkBytes();
uint32_t high0 = static_cast<uint8_t>(raw.at(start + 0));
uint32_t high1 = static_cast<uint8_t>(raw.at(start + 1));
uint32_t high2 = static_cast<uint8_t>(raw.at(start + 2));
uint32_t high3 = static_cast<uint8_t>(raw.at(start + 3));
uint32_t packed_low = static_cast<uint8_t>(raw.at(start + 4));
Chunk ret;
ret.at(0) = ((high0 << 2) | ((packed_low >> 6) & 0b11)) << 6;