* @brief Compute the angular alignment factors and offsets. * * @param weight_count The number of (decimated) weights. * @param

* @brief Compute regional averages in an image. * * This function can be called by multiple threads, but only after a single * thread calls the set

See header for documentation. */

See header for documentation. */

* @brief For a given partition compute the error for every endpoint integer count and quant level. * * @param encode_hdr_rgb @c true if usi

* @brief For a given set of input colors and partitioning determine endpoint encode errors. * * This function determines the color error that result

See header for documentation */

See header for documentation. */

See header for documentation. */

See header for documentation. */

* @brief Compute the errors of the endpoint line options for one partition. * * Uncorrelated data assumes storing completely independent RGBA channe

See header for documentation. */

See header for documentation. */

See header for documentation. */

* @brief Compute the ideal endpoints and weights for 4 color components. * * @param blk The image block color data to compress. * @param

* @brief Use k-means clustering to compute a partition ordering for a block.. * * @param bsd The block size information. * @p

* @brief For a given step size compute the lowest and highest weight. * * Compute the lowest and highest weight that results from quantizing using t

* @brief Compute the average RGB color of each partition. * * The algorithm here uses a vectorized sequential scan and per-partition * color accumu

See header for documentation. */

* @brief Allocate block modes and decimation tables for a single 2D block size. * * @param texels_x The number of texels in the X dimen

* @brief Allocate block modes and decimation tables for a single 3D block size. * * TODO: This function doesn't include all of the heuristics that w

* @brief Allocate a single 2D decimation table entry. * * @param texels_x The number of texels in the X dimension. * @param texels_y The numb

* @brief Count the partition table mismatches vs the data clustering. * * @param bsd The block size information. * @param p

Count the number of test executions needed for a test set. Args: test_set: The test set to run. block_sizes: The block sizes

* @brief Run-time detection if the host CPU supports AVX 2 extension. * * @return @c true if supported, @c false if not. */

* @brief Run-time detection if the host CPU supports F16C extension. * * @return @c true if supported, @c false if not. */

* @brief Run-time detection if the host CPU supports the POPCNT extension. * * @return @c true if supported, @c false if not. */

* @brief Run-time detection if the host CPU supports SSE 4.1 extension. * * @return @c true if supported, @c false if not. */

* @brief Decode the properties of an encoded 2D block mode. * * @param block_mode The encoded block mode. * @param[out] weights_x T

* @brief Decode the properties of an encoded 3D block mode. * * @param block_mode The encoded block mode. * @param[out] weights_x T

* @brief Convert integer color value into a float value for the decoder. * * @param data The integer color value post-interpolation. * @param

See header for documentation. */

Download a single image. Args: test_set: The test set name. index: The download image index. src_url: The download U

* @brief Edit the astcenc_config * * @param argc Command line argument count. * @param[in] argv Command line argument v

* @brief Encode a texel that is entirely LDR linear. * * Out-of-range inputs will be clamped to the valid UNORM range. * * @param data The R

Check if at end

Run a subprocess with the specified command. Args: command: The command line arguments to use. Return:

* @brief Compute an approximate exp2(x) for each lane in the vector. * * Based on 5th degree minimax polynomials, ported from this blog * https://j

* @brief SP float absolute value. * * @param v The value to make absolute. * * @return The absolute value. */

See header for documentation. */

* @brief Convert float to 16-bit LNS. */

Format a metrics string for a comparison result. Args: image: The image being tested. reference: The reference result to com

Format a metrics string for a single (no compare) result. Args: image: The image being tested. result: The test result.

* @brief For 4 partitions compute the best format and quantization for a given bit count. * * @param best_combined_error The best error for

* @brief For 4 partitions compute the best format combinations for every pair of quant mode and integer count. * * @param best_error

* @brief Extract mantissa and exponent of a float value. * * @param a The input value. * @param[out] exp The output exponent. * * @r

* @brief Extract mantissa and exponent of a float value. * * @param v The input value. * @param[out] expo The output exponent. * * @r

* @brief Load a vector of gathered results from an array; */

* @brief Generate a canonical representation of a partition pattern. * * The returned value stores two bits per texel, for up to 6x6x6 texels, where

See header for documentation. */

Get the regex pattern to match the coding rate. Return: The regex pattern.

Get the regex pattern to match the coding compression time. Return: The regex pattern.

The the encoder and image set parameters for a test run. Args: encoder_name: The encoder name. reference_name: The reference

Get a record matching the config of another record. Args: other: The pattern record to match. Return:

* @brief Fetch the packed percentile table for the given 2D block size. * * @param dim_x The block x size. * @param dim_y The block y size. * * @

* @brief Use counting sort on the mismatch array to sort partition candidates. * * @param partitioning_count The number of packed partitionin

Get the regex pattern to match the image quality metric. Note that, although this function is called PSNR, for some images we

Get a results summary of all the records in this result set. Return: ResultSummary: The result summary.

* @brief Utility to generate a slice file name from a pattern. * * Convert "foo/bar.png" into "foo/bar_<slice>.png" * * @param basename The base

Get the regex pattern to match the total compression time. Return: The regex pattern.

* @brief Return the horizontal sum of a vector. */

* @brief Hash function used for procedural partition assignment. * * @param inp The hash seed. * * @return The hashed value. */

* @brief Unpack an HDR A direct encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0 The unpacked e

* @brief Unpack an HDR L (large range) direct encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0

* @brief Unpack an HDR L (small range) direct encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0

* @brief Unpack an HDR RGBA direct encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0 The unpacke

* @brief Unpack an HDR RGB + LDR A direct encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0 The

* @brief Unpack an HDR RGB + offset encoding. * * @param input The packed endpoints (packed and modal). * @param[out] output0 The unpack

* @brief Return the horizontal minimum of a vector. */

* @brief Create a copy of @c input with forced unit-length normal vectors. * * It is assumed that all normal vectors are stored in the RGB component

* @brief Create a copy of @c input with premultiplied color data. * * If we are compressing sRGB data we linearize the data prior to * premultiplic

* @brief Set the value of a single pixel in an image. * * @param[out] img The output image; must use F32 texture components. * @param x

* @brief Initialize the astcenc_config * * @param argc Command line argument count. * @param[in] argv Command line argument v

See header for documentation. */

* @brief Create a 2D decimation entry for a block-size and weight-decimation pair. * * @param texels_x The number of texels in the X dimensi

* @brief Create a 3D decimation entry for a block-size and weight-decimation pair. * * @param texels_x The number of texels in the X dimensi

See header for documentation. */

* @brief Test if a string argument is a well formed float. */

See header for documentation. */

See header for documentation. */

* @brief Test if this block is a luminance block with variable alpha. * * @return @c true if the block is a luminance + alpha block , @c false oth

* @brief Assign texels to clusters, based on a set of chosen center points. * * @param blk The image block color data to compr

* @brief Pick some initial kmeans cluster centers. * * @param blk The image block color data to compress. * @param texel_co