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author | Juan Linietsky <reduzio@gmail.com> | 2015-12-04 10:18:28 -0300 |
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committer | Juan Linietsky <reduzio@gmail.com> | 2015-12-04 10:18:28 -0300 |
commit | da113fe40d0a9410859912473d53e43903dc6c8e (patch) | |
tree | 23c6019a28a11d67241789721d1feecdd19410e6 /drivers/webpold/utils/quant_levels.h | |
parent | 064fd762fae75371658e773a3acf39616e813b08 (diff) |
-Upgraded webp to a MUCH newer version. Hoping it fixes some bugs in the process. Keeping old version just in case for now.
-Added ability to convert xml and tscn scenes to binary on export, makes loading of larger scenes faster
Diffstat (limited to 'drivers/webpold/utils/quant_levels.h')
-rw-r--r-- | drivers/webpold/utils/quant_levels.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/webpold/utils/quant_levels.h b/drivers/webpold/utils/quant_levels.h new file mode 100644 index 0000000000..4f165fd230 --- /dev/null +++ b/drivers/webpold/utils/quant_levels.h @@ -0,0 +1,39 @@ +// Copyright 2011 Google Inc. All Rights Reserved. +// +// This code is licensed under the same terms as WebM: +// Software License Agreement: http://www.webmproject.org/license/software/ +// Additional IP Rights Grant: http://www.webmproject.org/license/additional/ +// ----------------------------------------------------------------------------- +// +// Alpha plane quantization utility +// +// Author: Vikas Arora (vikasa@google.com) + +#ifndef WEBP_UTILS_QUANT_LEVELS_H_ +#define WEBP_UTILS_QUANT_LEVELS_H_ + +#include <stdlib.h> + +#include "../types.h" + +#if defined(__cplusplus) || defined(c_plusplus) +extern "C" { +#endif + +// Replace the input 'data' of size 'width'x'height' with 'num-levels' +// quantized values. If not NULL, 'sse' will contain the sum of squared error. +// Valid range for 'num_levels' is [2, 256]. +// Returns false in case of error (data is NULL, or parameters are invalid). +int QuantizeLevels(uint8_t* const data, int width, int height, int num_levels, + uint64_t* const sse); + +// Apply post-processing to input 'data' of size 'width'x'height' assuming +// that the source was quantized to a reduced number of levels. +// Returns false in case of error (data is NULL, invalid parameters, ...). +int DequantizeLevels(uint8_t* const data, int width, int height); + +#if defined(__cplusplus) || defined(c_plusplus) +} // extern "C" +#endif + +#endif /* WEBP_UTILS_QUANT_LEVELS_H_ */ |