diff options
Diffstat (limited to 'third_party/jpeg-xl/lib/jxl/coeff_order.h')
| -rw-r--r-- | third_party/jpeg-xl/lib/jxl/coeff_order.h | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/coeff_order.h b/third_party/jpeg-xl/lib/jxl/coeff_order.h index 75f6f99e9f..79c0c976c9 100644 --- a/third_party/jpeg-xl/lib/jxl/coeff_order.h +++ b/third_party/jpeg-xl/lib/jxl/coeff_order.h @@ -10,10 +10,10 @@ #include <stdint.h> #include "lib/jxl/ac_strategy.h" +#include "lib/jxl/base/common.h" #include "lib/jxl/base/compiler_specific.h" #include "lib/jxl/base/status.h" #include "lib/jxl/coeff_order_fwd.h" -#include "lib/jxl/dct_util.h" #include "lib/jxl/frame_dimensions.h" namespace jxl { @@ -21,22 +21,21 @@ namespace jxl { class BitReader; // Those offsets get multiplied by kDCTBlockSize. -static constexpr size_t kCoeffOrderOffset[] = { + +static constexpr size_t kCoeffOrderLimit = 6156; + +static constexpr std::array<size_t, 3 * kNumOrders + 1> kCoeffOrderOffset = { 0, 1, 2, 3, 4, 5, 6, 10, 14, 18, 34, 50, 66, 68, 70, 72, 76, 80, 84, 92, 100, 108, 172, 236, 300, 332, 364, 396, 652, 908, - 1164, 1292, 1420, 1548, 2572, 3596, 4620, 5132, 5644, 6156, -}; -static_assert(3 * kNumOrders + 1 == - sizeof(kCoeffOrderOffset) / sizeof(*kCoeffOrderOffset), - "Update this array when adding or removing order types."); + 1164, 1292, 1420, 1548, 2572, 3596, 4620, 5132, 5644, kCoeffOrderLimit}; -static constexpr size_t CoeffOrderOffset(size_t order, size_t c) { - return kCoeffOrderOffset[3 * order + c] * kDCTBlockSize; -} +// TODO(eustas): rollback to constexpr once modern C++ becomes reuired. +#define CoeffOrderOffset(O, C) \ + (kCoeffOrderOffset[3 * (O) + (C)] * kDCTBlockSize) -static constexpr size_t kCoeffOrderMaxSize = - kCoeffOrderOffset[3 * kNumOrders] * kDCTBlockSize; +static JXL_MAYBE_UNUSED constexpr size_t kCoeffOrderMaxSize = + kCoeffOrderLimit * kDCTBlockSize; // Mapping from AC strategy to order bucket. Strategies with different natural // orders must have different buckets. @@ -49,7 +48,7 @@ static_assert(AcStrategy::kNumValidStrategies == sizeof(kStrategyOrder) / sizeof(*kStrategyOrder), "Update this array when adding or removing AC strategies."); -constexpr uint32_t kPermutationContexts = 8; +constexpr JXL_MAYBE_UNUSED uint32_t kPermutationContexts = 8; uint32_t CoeffOrderContext(uint32_t val); |