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Don't play silenced muzzle flash sounds
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563ef16ee3
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2 changed files with 141 additions and 0 deletions
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@ -66,6 +66,7 @@ typedef struct sfx_s
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int registration_sequence;
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sfxcache_t *cache;
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char *truename;
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qboolean is_silenced_muzzle_flash;
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} sfx_t;
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/* A playsound_t will be generated by each call
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@ -40,6 +40,19 @@
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#define MAX_SFX (MAX_SOUNDS * 2)
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#define MAX_PLAYSOUNDS 128
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/* Maximum length (seconds) of audio data to test for silence. */
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#define S_MAX_LEN_TO_TEST_FOR_SILENCE_S (2)
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/* Minimum length (milliseconds) of audio data to treat as silence. */
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#define S_MIN_LEN_TO_TREAT_AS_SILENCE_MS (3)
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/* Minimum amplitude absolute value of unsigned 8-bit audio data to treat as silence. */
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#define S_MIN_ABS_AMP_8_TO_TREAT_AS_SILENCE (1)
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/* Minimum amplitude absolute value of signed 16-bit audio data to treat as silence. */
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#define S_MIN_ABS_AMP_16_TO_TREAT_AS_SILENCE (2)
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vec3_t listener_origin;
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vec3_t listener_forward;
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vec3_t listener_right;
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@ -77,6 +90,121 @@ qboolean snd_is_underwater;
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qboolean snd_is_underwater_enabled;
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/* ----------------------------------------------------------------- */
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static qboolean
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S_IsShortSilence(const wavinfo_t* info, const void* raw_data)
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{
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/* Test only mono-audio data. */
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if (info->channels != 1)
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{
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return false;
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}
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/* Treat it as silence if sample count too small. */
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if (((info->samples * 1000) / info->rate) <= S_MIN_LEN_TO_TREAT_AS_SILENCE_MS)
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{
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return true;
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}
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/* Test only several second's of audio data. */
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if (info->samples > (info->rate * S_MAX_LEN_TO_TEST_FOR_SILENCE_S))
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{
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return false;
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}
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if (info->width == 1)
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{
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/* Unsigned 8-bit audio data. */
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const unsigned char* samples = (const unsigned char*)raw_data;
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const int sample_count = info->samples * info->width;
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int i;
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for (i = 0; i < sample_count; ++i)
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{
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const int sample = samples[i] - 0x80;
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if (abs(sample) > S_MIN_ABS_AMP_8_TO_TREAT_AS_SILENCE)
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{
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return false;
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}
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}
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}
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else if (info->width == 2)
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{
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/* Signed 16-bit audio data. */
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const short* samples = (const short*)raw_data;
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const int sample_count = info->samples * info->width;
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int i;
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for (i = 0; i < sample_count; ++i)
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{
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const int sample = LittleShort(samples[i]);
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if (abs(sample) > S_MIN_ABS_AMP_16_TO_TREAT_AS_SILENCE)
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{
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return false;
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}
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}
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}
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else
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{
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/* Unsupported bit depth. */
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return false;
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}
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return true;
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}
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static qboolean
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S_IsSilencedMuzzleFlash(const wavinfo_t* info, const void* raw_data, const char* name)
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{
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/* Skip the prefix. */
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static const size_t base_sound_string_length = strlen("sound/");
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const char* base_name = name + base_sound_string_length;
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/* Match to well-known muzzle flash sound names. */
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const qboolean is_name_matched =
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strcmp(base_name, "weapons/bfg__f1y.wav") == 0 ||
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strcmp(base_name, "weapons/blastf1a.wav") == 0 ||
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strcmp(base_name, "weapons/disint2.wav") == 0 ||
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strcmp(base_name, "weapons/grenlf1a.wav") == 0 ||
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strcmp(base_name, "weapons/grenlr1b.wav") == 0 ||
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strcmp(base_name, "weapons/hyprbf1a.wav") == 0 ||
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strcmp(base_name, "weapons/machgf1b.wav") == 0 ||
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strcmp(base_name, "weapons/machgf2b.wav") == 0 ||
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strcmp(base_name, "weapons/machgf3b.wav") == 0 ||
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strcmp(base_name, "weapons/machgf4b.wav") == 0 ||
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strcmp(base_name, "weapons/machgf5b.wav") == 0 ||
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strcmp(base_name, "weapons/nail1.wav") == 0 ||
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strcmp(base_name, "weapons/plasshot.wav") == 0 ||
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strcmp(base_name, "weapons/railgf1a.wav") == 0 ||
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strcmp(base_name, "weapons/rippfire.wav") == 0 ||
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strcmp(base_name, "weapons/rocklf1a.wav") == 0 ||
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strcmp(base_name, "weapons/rocklr1b.wav") == 0 ||
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strcmp(base_name, "weapons/shotg2.wav") == 0 ||
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strcmp(base_name, "weapons/shotgf1b.wav") == 0 ||
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strcmp(base_name, "weapons/shotgr1b.wav") == 0 ||
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strcmp(base_name, "weapons/sshotf1b.wav") == 0 ||
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false
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;
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if (!is_name_matched)
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{
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return false;
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}
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/* Now check for silence. */
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if (!S_IsShortSilence(info, raw_data))
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{
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return false;
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}
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return true;
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}
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/*
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* Loads one sample into memory
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*/
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@ -141,6 +269,11 @@ S_LoadSound(sfx_t *s)
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return NULL;
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}
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if (S_IsSilencedMuzzleFlash(&info, data, namebuffer))
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{
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s->is_silenced_muzzle_flash = true;
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}
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#if USE_OPENAL
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if (sound_started == SS_OAL)
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{
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@ -225,6 +358,7 @@ S_FindName(char *name, qboolean create)
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sfx->truename = NULL;
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strcpy(sfx->name, name);
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sfx->registration_sequence = s_registration_sequence;
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sfx->is_silenced_muzzle_flash = false;
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return sfx;
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}
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@ -551,6 +685,12 @@ S_IssuePlaysound(playsound_t *ps)
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Com_Printf("Issue %i\n", ps->begin);
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}
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if (ps->sfx->is_silenced_muzzle_flash)
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{
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S_FreePlaysound(ps);
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return;
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}
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/* pick a channel to play on */
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ch = S_PickChannel(ps->entnum, ps->entchannel);
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