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Diffstat (limited to '')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/enc_transforms.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/enc_transforms.h b/third_party/jpeg-xl/lib/jxl/enc_transforms.h new file mode 100644 index 0000000000..039ccc3893 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/enc_transforms.h @@ -0,0 +1,32 @@ +// Copyright (c) the JPEG XL Project Authors. All rights reserved. +// +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +#ifndef LIB_JXL_ENC_TRANSFORMS_H_ +#define LIB_JXL_ENC_TRANSFORMS_H_ + +// Facade for (non-inlined) integral transforms. + +#include <stddef.h> +#include <stdint.h> + +#include "lib/jxl/ac_strategy.h" +#include "lib/jxl/base/compiler_specific.h" + +namespace jxl { + +void TransformFromPixels(const AcStrategy::Type strategy, + const float* JXL_RESTRICT pixels, size_t pixels_stride, + float* JXL_RESTRICT coefficients, + float* JXL_RESTRICT scratch_space); + +// Equivalent of the above for DC image. +void DCFromLowestFrequencies(AcStrategy::Type strategy, const float* block, + float* dc, size_t dc_stride); + +void AFVDCT4x4(const float* JXL_RESTRICT pixels, float* JXL_RESTRICT coeffs); + +} // namespace jxl + +#endif // LIB_JXL_ENC_TRANSFORMS_H_ |