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Update SDL2 to 2.0.14

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This commit is contained in:
Tom Kidd 2021-03-03 22:55:48 -06:00
parent 52a43ae1c4
commit 1ab25673c5
56 changed files with 3125 additions and 363 deletions
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64
code/SDL2/include/SDL_audio.h
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@ -1,6 +1,6 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@ -140,7 +140,8 @@ typedef Uint16 SDL_AudioFormat;
#define SDL_AUDIO_ALLOW_FREQUENCY_CHANGE 0x00000001
#define SDL_AUDIO_ALLOW_FORMAT_CHANGE 0x00000002
#define SDL_AUDIO_ALLOW_CHANNELS_CHANGE 0x00000004
#define SDL_AUDIO_ALLOW_ANY_CHANGE (SDL_AUDIO_ALLOW_FREQUENCY_CHANGE|SDL_AUDIO_ALLOW_FORMAT_CHANGE|SDL_AUDIO_ALLOW_CHANNELS_CHANGE)
#define SDL_AUDIO_ALLOW_SAMPLES_CHANGE 0x00000008
#define SDL_AUDIO_ALLOW_ANY_CHANGE (SDL_AUDIO_ALLOW_FREQUENCY_CHANGE|SDL_AUDIO_ALLOW_FORMAT_CHANGE|SDL_AUDIO_ALLOW_CHANNELS_CHANGE|SDL_AUDIO_ALLOW_SAMPLES_CHANGE)
/* @} */
/* @} *//* Audio flags */
@ -419,23 +420,56 @@ extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
/* @} *//* Pause audio functions */
/**
* This function loads a WAVE from the data source, automatically freeing
* that source if \c freesrc is non-zero. For example, to load a WAVE file,
* you could do:
* \brief Load the audio data of a WAVE file into memory
*
* Loading a WAVE file requires \c src, \c spec, \c audio_buf and \c audio_len
* to be valid pointers. The entire data portion of the file is then loaded
* into memory and decoded if necessary.
*
* If \c freesrc is non-zero, the data source gets automatically closed and
* freed before the function returns.
*
* Supported are RIFF WAVE files with the formats PCM (8, 16, 24, and 32 bits),
* IEEE Float (32 bits), Microsoft ADPCM and IMA ADPCM (4 bits), and A-law and
* µ-law (8 bits). Other formats are currently unsupported and cause an error.
*
* If this function succeeds, the pointer returned by it is equal to \c spec
* and the pointer to the audio data allocated by the function is written to
* \c audio_buf and its length in bytes to \c audio_len. The \ref SDL_AudioSpec
* members \c freq, \c channels, and \c format are set to the values of the
* audio data in the buffer. The \c samples member is set to a sane default and
* all others are set to zero.
*
* It's necessary to use SDL_FreeWAV() to free the audio data returned in
* \c audio_buf when it is no longer used.
*
* Because of the underspecification of the Waveform format, there are many
* problematic files in the wild that cause issues with strict decoders. To
* provide compatibility with these files, this decoder is lenient in regards
* to the truncation of the file, the fact chunk, and the size of the RIFF
* chunk. The hints SDL_HINT_WAVE_RIFF_CHUNK_SIZE, SDL_HINT_WAVE_TRUNCATION,
* and SDL_HINT_WAVE_FACT_CHUNK can be used to tune the behavior of the
* loading process.
*
* Any file that is invalid (due to truncation, corruption, or wrong values in
* the headers), too big, or unsupported causes an error. Additionally, any
* critical I/O error from the data source will terminate the loading process
* with an error. The function returns NULL on error and in all cases (with the
* exception of \c src being NULL), an appropriate error message will be set.
*
* It is required that the data source supports seeking.
*
* Example:
* \code
* SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
* \endcode
*
* If this function succeeds, it returns the given SDL_AudioSpec,
* filled with the audio data format of the wave data, and sets
* \c *audio_buf to a malloc()'d buffer containing the audio data,
* and sets \c *audio_len to the length of that audio buffer, in bytes.
* You need to free the audio buffer with SDL_FreeWAV() when you are
* done with it.
*
* This function returns NULL and sets the SDL error message if the
* wave file cannot be opened, uses an unknown data format, or is
* corrupt. Currently raw and MS-ADPCM WAVE files are supported.
* \param src The data source with the WAVE data
* \param freesrc A integer value that makes the function close the data source if non-zero
* \param spec A pointer filled with the audio format of the audio data
* \param audio_buf A pointer filled with the audio data allocated by the function
* \param audio_len A pointer filled with the length of the audio data buffer in bytes
* \return NULL on error, or non-NULL on success.
*/
extern DECLSPEC SDL_AudioSpec *SDLCALL SDL_LoadWAV_RW(SDL_RWops * src,
int freesrc,