shithub: cstory

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Made MixSounds be marked as hot

Signed-off-by: Gabriel Ravier <gabrielravier@gabrielAncientIBMv2>

--- a/src/Backends/Audio/SDL2.cpp

+++ b/src/Backends/Audio/SDL2.cpp

@@ -12,6 +12,7 @@

 #include "../../Organya.h"

 #include "../../WindowsWrapper.h"

+#include "../../CommonDefines.h"

 #define MIN(a, b) ((a) < (b) ? (a) : (b))

 #define MAX(a, b) ((a) > (b) ? (a) : (b))

@@ -70,7 +71,8 @@

 	sound->volume_r = sound->pan_r * sound->volume;

 }

-static void MixSounds(float *stream, unsigned int frames_total)

+// Most CPU-intensive function in the game (2/3rd CPU time consumption in my experience), so marked with attrHot so the compiler considers it a hot spot (as it is) when optimizing

+attrHot static void MixSounds(float *stream, unsigned int frames_total)

 {

 	for (AudioBackend_Sound *sound = sound_list_head; sound != NULL; sound = sound->next)

 	{

--- a/src/CommonDefines.h

+++ b/src/CommonDefines.h

@@ -10,6 +10,10 @@

 #define TILES_TO_UNITS(x) ((int)((x) * (0x200 * 0x10)))

 #define UNITS_TO_TILES(x) ((int)((x) / (0x200 * 0x10)))

+#ifdef __GNUC__

+#define attrHot __attribute__((hot))

+#endif

+

 enum Collisions

 {

 	COLL_LEFT_WALL = 1,     // Touching a left wall

-- 

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