* @brief Convert unorm16 [0, 65535] to float16 in range [0, 1]. */

TODO: Simply return nullptr when failed to allocate?

Half-float conversion helpers for B44 table initialization

C++ HeaderInfo to C EXRHeader conversion.

TODO(syoyo): Refactor function arguments.

Helper to format wavelength with comma as decimal separator (European convention)

out_data must be allocated initially with the block-header size of the current image(-part) type

Pack a 4x4 block of HALF values into 14 bytes (matches OpenEXR's pack()) Returns the number of bytes written (14 for normal, 3 for flat if flatfields=

can save a single or multi-part image (no deep* formats)

Add a new test result record to this result set. Args: record: The test record to add.

* @brief Assign the texels to use for kmeans clustering. * * The max limit is @c BLOCK_MAX_KMEANS_TEXELS; above this a random selection is used. *

See header for documentation. */

See header for documentation. */

See header for documentation. */

See header for documentation. */

* @brief Reverse bits in a byte. * * @param p The value to reverse. * * @return The reversed result. */

* @brief Clear the tracker and stop new tasks being assigned. * * Note, all in-flight tasks in a worker will still complete normally. */

* @brief Compress a block using a chosen partitioning and 1 plane of weights. * * @param config The compressor configuration

See header for documentation. */

See header for documentation. */

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

* @brief Compute the RGB + offset for a HDR endpoint mode #7. * * Since the matrix needed has a regular structure we can simplify the inverse calcul

See header for documentation. */

* @brief Copy a scanline from a source file and expand to a canonical format. * * Outputs are always 4 component RGBA, stored as U8 (LDR) or FP16 (H

See header for documentation. */

See header for documentation. */

Determine a test result against a reference and thresholds. Args: image: The image being compressed. reference: The referenc

See header for documentation. */

* @brief SP float bit-interpreted as an unsigned integer. * * @param v The value to bitcast. * * @return The converted value. */

Convert float32 to float24 (PXR24 format)

See header for documentation. */

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

* @brief Generate a single partition info structure. * * @param[out] bsd The block size information. * @param partition_co

* @brief Get the weight quantization used by this block mode. * * @return The quantization level. */

See header for documentation */

See header for documentation. */

* @brief Get the total number of texels in an image. * * This function validates that the total size would fit in a size_t and returns * 0 if it do

Get the worst result in this set. Return: The worst test result.

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

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

* @brief Get the value of a single pixel in an image. * * Note, this implementation is not particularly optimal as it puts format * checks in the i

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

See header for documentation. */

* @brief Signed int bit-interpreted as an unsigned integer. * * @param v The value to bitcast. * * @return The converted value. */

* @brief Return a vector of interleaved RGBA data. * * Input vectors have the value stored in the bottom 8 bits of each lane, * with high bits set

Is the given block size a 3D block type? Args: block_size: The block size. Return: True if the block size if 3D, False

* @brief Test if this block is a luminance block with constant 1.0 alpha. * * @return @c true if the block is a luminance block , @c false otherwi

* @brief Test if this mode is active below a given 1 plane weight quant (inclusive). * * @param max_weight_quant The max quant method to test.

* @brief Test if this mode is active below a given 2 plane weight quant (inclusive). * * @param max_weight_quant The max quant method to test.

See header for documentation */

See header for documentation. */

Make image consisting of RGB from A, and alpha from B. Args: srca_path: The path of input A on disk. srcb_path: The path of

* @brief Return a 1-bit mask code indicating mask status. * * bit0 = lane 0 */

* @brief Return an 8-bit mask code indicating mask status. * * bit0 = lane 0 */

* @brief Return a 4-bit mask code indicating mask status. * * bit0 = lane 0 */

* @brief Return the max vector of two vectors. */

* @brief Return the max vector of two vectors. */

* @brief mPSNR tone-mapping operator for HDR images. * * @param val The color value to tone map * @param fstop The exposure fstop; should be

* @brief Determine the lowest cross-channel correlation factor. * * @param texels_per_block The number of texels in a block. * @param blk

* @brief Quantize an LDR RGB color. * * Since this is a fall-back encoding, we cannot actually fail but must produce a sensible result. * For this

* @brief Quantize an LDR RGB color using scale encoding. * * @param color The input unquantized color endpoint and scale factor. * @pa

* @brief Attempt to improve weights given a chosen configuration. * * Given a fixed weight grid decimation and weight value quantization, iterate ov

* @brief Attempt to improve weights given a chosen configuration. * * Given a fixed weight grid decimation and weight value quantization, iterate ov

* @brief 64-bit rotate left. * * @param val The value to rotate. * @param count The rotation, in bits. */

* @brief Return lanes from @c b if @c cond is set, else @c a. */

returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow.

adds an extra all-255 alpha channel dest == src is legal img_n must be 1 or 3

create the png data from post-deflated data

this function is designed to support animated gifs, although stb_image doesn't support it two back is the image from two frames ago, used for a very s