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Add 'const' to pointer parameters

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Petar Popovic authored and Sam Lantinga committed 2025-02-21 15:59:40 -08:00
1 parent 911e53dece
commit b5297de56f
6 files changed
+12 -12
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src/audio/SDL_audioresample.c
+1 -1
View File
@@ -444,7 +444,7 @@ static void SincTable(float *table, int len)
}
// Calculate Sinc(x/y), using a lookup table
static float Sinc(float *table, int x, int y)
static float Sinc(const float *table, int x, int y)
{
float s = table[x % y];
s = ((x / y) & 1) ? -s : s;
src/audio/alsa/SDL_alsa_audio.c
+6 -6
View File
@@ -566,7 +566,7 @@ static enum snd_pcm_chmap_position sdl_channel_maps[SDL_AUDIO_ALSA__SDL_CHMAPS_N
};
// Helper for the function right below.
static bool has_pos(unsigned int *chmap, unsigned int pos)
static bool has_pos(const unsigned int *chmap, unsigned int pos)
{
for (unsigned int chan_idx = 0; ; chan_idx++) {
if (chan_idx == 6) {
@@ -586,7 +586,7 @@ static bool has_pos(unsigned int *chmap, unsigned int pos)
#define HAVE_REAR 1
#define HAVE_SIDE 2
#define HAVE_BOTH 3
static void sdl_6chans_set_rear_or_side_channels_from_alsa_6chans(unsigned int *sdl_6chans, unsigned int *alsa_6chans)
static void sdl_6chans_set_rear_or_side_channels_from_alsa_6chans(unsigned int *sdl_6chans, const unsigned int *alsa_6chans)
{
// For alsa channel maps with 6 channels and with SND_CHMAP_FL,SND_CHMAP_FR,SND_CHMAP_FC,
// SND_CHMAP_LFE, reduce our 6 channels maps to a uniq one.
@@ -638,7 +638,7 @@ static void sdl_6chans_set_rear_or_side_channels_from_alsa_6chans(unsigned int *
#undef HAVE_SIDE
#undef HAVE_BOTH
static void swizzle_map_compute_alsa_subscan(struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map, unsigned int sdl_pos_idx)
static void swizzle_map_compute_alsa_subscan(const struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map, unsigned int sdl_pos_idx)
{
swizzle_map[sdl_pos_idx] = -1;
for (unsigned int alsa_pos_idx = 0; ; alsa_pos_idx++) {
@@ -652,7 +652,7 @@ static void swizzle_map_compute_alsa_subscan(struct ALSA_pcm_cfg_ctx *ctx, int *
}
// XXX: this must stay playback/recording symetric.
static void swizzle_map_compute(struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map, bool *needs_swizzle)
static void swizzle_map_compute(const struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map, bool *needs_swizzle)
{
*needs_swizzle = false;
for (unsigned int sdl_pos_idx = 0; sdl_pos_idx != ctx->chans_n; sdl_pos_idx++) {
@@ -668,7 +668,7 @@ static void swizzle_map_compute(struct ALSA_pcm_cfg_ctx *ctx, int *swizzle_map,
#define CHMAP_NOT_FOUND 2
// Should always be a queried alsa channel map unless the queried alsa channel map was of type VAR,
// namely we can program the channel positions directly from the SDL channel map.
static int alsa_chmap_install(struct ALSA_pcm_cfg_ctx *ctx, unsigned int *chmap)
static int alsa_chmap_install(struct ALSA_pcm_cfg_ctx *ctx, const unsigned int *chmap)
{
bool isstack;
snd_pcm_chmap_t *chmap_to_install = (snd_pcm_chmap_t*)SDL_small_alloc(unsigned int, 1 + ctx->chans_n, &isstack);
@@ -698,7 +698,7 @@ static int alsa_chmap_install(struct ALSA_pcm_cfg_ctx *ctx, unsigned int *chmap)
// We restrict the alsa channel maps because in the unordered matches we do only simple accounting.
// In the end, this will handle mostly alsa channel maps with more than one SND_CHMAP_NA position fillers.
static bool alsa_chmap_has_duplicate_position(struct ALSA_pcm_cfg_ctx *ctx, unsigned int *pos)
static bool alsa_chmap_has_duplicate_position(const struct ALSA_pcm_cfg_ctx *ctx, const unsigned int *pos)
{
if (ctx->chans_n < 2) {// we need at least 2 positions
LOGDEBUG("channel map:no duplicate");