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- removed all uses of __builtin_expect from WildMidi code.

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This commit is contained in:
Christoph Oelckers 2015-12-29 11:36:56 +01:00
parent 944360557f
commit 7fa289109b
1 changed files with 39 additions and 52 deletions
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91
src/wildmidi/wildmidi_lib.cpp
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@ -60,9 +60,6 @@
#define IS_ABSOLUTE_PATH(f) (IS_DIR_SEPARATOR((f)[0]) || HAS_DRIVE_SPEC((f)))
// Why is this shit even being used...? :(
#define __builtin_expect(a, b) a
/*
* =========================
* Global Data and Data Structs
@ -1459,15 +1456,15 @@ static inline unsigned long int get_inc(struct _mdi *mdi, struct _note *nte) {
signed long int note_f;
unsigned long int freq;
if (__builtin_expect((nte->patch->note != 0), 0)) {
if (nte->patch->note != 0) {
note_f = nte->patch->note * 100;
} else {
note_f = (nte->noteid & 0x7f) * 100;
}
note_f += mdi->channel[ch].pitch_adjust;
if (__builtin_expect((note_f < 0), 0)) {
if (note_f < 0) {
note_f = 0;
} else if (__builtin_expect((note_f > 12700), 0)) {
} else if (note_f > 12700) {
note_f = 12700;
}
freq = freq_table[(note_f % 1200)] >> (10 - (note_f / 1200));
@ -3202,7 +3199,7 @@ static int *WM_Mix_Linear(midi * handle, int * buffer, unsigned long int count)
do {
note_data = mdi->note;
left_mix = right_mix = 0;
if (__builtin_expect((note_data != NULL), 1)) {
if (note_data != NULL) {
while (note_data) {
/*
* ===================
@ -3231,44 +3228,38 @@ static int *WM_Mix_Linear(midi * handle, int * buffer, unsigned long int count)
* ========================
*/
note_data->sample_pos += note_data->sample_inc;
if (__builtin_expect(
(note_data->sample_pos > note_data->sample->loop_end),
0)) {
if (note_data->sample_pos > note_data->sample->loop_end) {
if (note_data->modes & SAMPLE_LOOP) {
note_data->sample_pos =
note_data->sample->loop_start
+ ((note_data->sample_pos
- note_data->sample->loop_start)
% note_data->sample->loop_size);
} else if (__builtin_expect(
(note_data->sample_pos
>= note_data->sample->data_length),
0)) {
if (__builtin_expect((note_data->replay == NULL), 1)) {
} else if (note_data->sample_pos >= note_data->sample->data_length) {
if (note_data->replay == NULL) {
goto KILL_NOTE;
}
goto RESTART_NOTE;
}
}
if (__builtin_expect((note_data->env_inc == 0), 0)) {
if (note_data->env_inc == 0) {
note_data = note_data->next;
continue;
}
note_data->env_level += note_data->env_inc;
if (__builtin_expect((note_data->env_level > 4194304), 0)) {
if (note_data->env_level > 4194304) {
note_data->env_level =
note_data->sample->env_target[note_data->env];
}
if (__builtin_expect(
((note_data->env_inc < 0)
&& (note_data->env_level
> note_data->sample->env_target[note_data->env]))
|| ((note_data->env_inc > 0)
&& (note_data->env_level
< note_data->sample->env_target[note_data->env])),
1)) {
if (((note_data->env_inc < 0)
&& (note_data->env_level
> note_data->sample->env_target[note_data->env]))
|| ((note_data->env_inc > 0)
&& (note_data->env_level
< note_data->sample->env_target[note_data->env])))
{
note_data = note_data->next;
continue;
}
@ -3304,7 +3295,7 @@ static int *WM_Mix_Linear(midi * handle, int * buffer, unsigned long int count)
}
break;
case 5:
if (__builtin_expect((note_data->env_level == 0), 1)) {
if (note_data->env_level == 0) {
goto KILL_NOTE;
}
/* sample release */
@ -3314,7 +3305,7 @@ static int *WM_Mix_Linear(midi * handle, int * buffer, unsigned long int count)
note_data = note_data->next;
continue;
case 6:
if (__builtin_expect((note_data->replay != NULL), 1)) {
if (note_data->replay != NULL) {
RESTART_NOTE: note_data->active = 0;
{
struct _note *prev_note = NULL;
@ -3409,7 +3400,7 @@ static int *WM_Mix_Gauss(midi * handle, int * buffer, unsigned long int count)
do {
note_data = mdi->note;
left_mix = right_mix = 0;
if (__builtin_expect((note_data != NULL), 1)) {
if (note_data != NULL) {
while (note_data) {
/*
* ===================
@ -3471,44 +3462,40 @@ static int *WM_Mix_Gauss(midi * handle, int * buffer, unsigned long int count)
* ========================
*/
note_data->sample_pos += note_data->sample_inc;
if (__builtin_expect(
(note_data->sample_pos > note_data->sample->loop_end),
0)) {
if (note_data->sample_pos > note_data->sample->loop_end)
{
if (note_data->modes & SAMPLE_LOOP) {
note_data->sample_pos =
note_data->sample->loop_start
+ ((note_data->sample_pos
- note_data->sample->loop_start)
% note_data->sample->loop_size);
} else if (__builtin_expect(
(note_data->sample_pos
>= note_data->sample->data_length),
0)) {
if (__builtin_expect((note_data->replay == NULL), 1)) {
} else if (note_data->sample_pos >= note_data->sample->data_length) {
if (note_data->replay == NULL) {
goto KILL_NOTE;
}
goto RESTART_NOTE;
}
}
if (__builtin_expect((note_data->env_inc == 0), 0)) {
if (note_data->env_inc == 0) {
note_data = note_data->next;
continue;
}
note_data->env_level += note_data->env_inc;
if (__builtin_expect((note_data->env_level > 4194304), 0)) {
if (note_data->env_level > 4194304) {
note_data->env_level =
note_data->sample->env_target[note_data->env];
}
if (__builtin_expect(
if (
((note_data->env_inc < 0)
&& (note_data->env_level
> note_data->sample->env_target[note_data->env]))
|| ((note_data->env_inc > 0)
&& (note_data->env_level
< note_data->sample->env_target[note_data->env])),
1)) {
< note_data->sample->env_target[note_data->env]))
) {
note_data = note_data->next;
continue;
}
@ -3544,7 +3531,7 @@ static int *WM_Mix_Gauss(midi * handle, int * buffer, unsigned long int count)
}
break;
case 5:
if (__builtin_expect((note_data->env_level == 0), 1)) {
if (note_data->env_level == 0) {
goto KILL_NOTE;
}
/* sample release */
@ -3554,7 +3541,7 @@ static int *WM_Mix_Gauss(midi * handle, int * buffer, unsigned long int count)
note_data = note_data->next;
continue;
case 6:
if (__builtin_expect((note_data->replay != NULL), 1)) {
if (note_data->replay != NULL) {
RESTART_NOTE: note_data->active = 0;
{
struct _note *prev_note = NULL;
@ -3671,7 +3658,7 @@ static int WM_DoGetOutput(midi * handle, char * buffer,
out_buffer = tmp_buffer;
do {
if (__builtin_expect((!mdi->samples_to_mix), 0)) {
if (!mdi->samples_to_mix) {
while ((!mdi->samples_to_mix) && (event->do_event)) {
event->do_event(mdi, &event->event_data);
event++;
@ -3692,7 +3679,7 @@ static int WM_DoGetOutput(midi * handle, char * buffer,
}
}
}
if (__builtin_expect((mdi->samples_to_mix > (size >> 2)), 1)) {
if (mdi->samples_to_mix > (size >> 2)) {
real_samples_to_mix = size >> 2;
} else {
real_samples_to_mix = mdi->samples_to_mix;
@ -4016,7 +4003,7 @@ WM_SYMBOL int WildMidi_FastSeek(midi * handle, unsigned long int *sample_pos) {
_WM_reset_reverb(mdi->reverb);
while (count) {
if (__builtin_expect((!mdi->samples_to_mix), 0)) {
if (!mdi->samples_to_mix) {
while ((!mdi->samples_to_mix) && (event->do_event)) {
event->do_event(mdi, &event->event_data);
event++;
@ -4034,7 +4021,7 @@ WM_SYMBOL int WildMidi_FastSeek(midi * handle, unsigned long int *sample_pos) {
}
}
if (__builtin_expect((mdi->samples_to_mix > count), 0)) {
if (mdi->samples_to_mix > count) {
real_samples_to_mix = count;
} else {
real_samples_to_mix = mdi->samples_to_mix;
@ -4066,24 +4053,24 @@ WM_SYMBOL int WildMidi_FastSeek(midi * handle, unsigned long int *sample_pos) {
}
WM_SYMBOL int WildMidi_GetOutput(midi * handle, char *buffer, unsigned long int size) {
if (__builtin_expect((!WM_Initialized), 0)) {
if (!WM_Initialized) {
_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_NOT_INIT, NULL, 0);
return -1;
}
if (__builtin_expect((handle == NULL), 0)) {
if (handle == NULL) {
_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_INVALID_ARG, "(NULL handle)",
0);
return -1;
}
if (__builtin_expect((buffer == NULL), 0)) {
if (buffer == NULL) {
_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_INVALID_ARG,
"(NULL buffer pointer)", 0);
return -1;
}
if (__builtin_expect((size == 0), 0)) {
if (size == 0) {
return 0;
}
if (__builtin_expect((!!(size % 4)), 0)) {
if (!!(size % 4)) {
_WM_ERROR(__FUNCTION__, __LINE__, WM_ERR_INVALID_ARG,
"(size not a multiple of 4)", 0);
return -1;