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Add profiling
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2 changed files with 65 additions and 1 deletions
59
raycastlib.h
59
raycastlib.h
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@ -146,8 +146,45 @@ void render(Camera cam, ArrayFunction arrayFunc, PixelFunc pixelFunc,
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//=============================================================================
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// privates
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#ifdef RAYCASTLIB_PROFILE
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// function call counters for profiling
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uint32_t profile_sqrtInt = 0;
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uint32_t profile_clamp = 0;
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uint32_t profile_cosInt = 0;
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uint32_t profile_angleToDirection = 0;
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uint32_t profile_dist = 0;
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uint32_t profile_len = 0;
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uint32_t profile_pointIsLeftOfRay = 0;
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uint32_t profile_castRaySquare = 0;
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uint32_t profile_castRayMultiHit = 0;
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uint32_t profile_castRay = 0;
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uint16_t profile_normalize = 0;
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uint16_t profile_vectorsAngleCos = 0;
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#define profileCall(c) profile_##c += 1
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#define printProfile() {\
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printf("profile:\n");\
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printf(" profile_sqrtInt: %d\n",profile_sqrtInt);\
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printf(" profile_clamp: %d\n",profile_clamp);\
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printf(" profile_cosInt: %d\n",profile_cosInt);\
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printf(" profile_angleToDirection: %d\n",profile_angleToDirection);\
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printf(" profile_dist: %d\n",profile_dist);\
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printf(" profile_len: %d\n",profile_len);\
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printf(" profile_pointIsLeftOfRay: %d\n",profile_pointIsLeftOfRay);\
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printf(" profile_castRaySquare: %d\n",profile_castRaySquare);\
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printf(" profile_castRayMultiHit : %d\n",profile_castRayMultiHit);\
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printf(" profile_castRay: %d\n",profile_castRay);\
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printf(" profile_normalize: %d\n",profile_normalize);\
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printf(" profile_vectorsAngleCos: %d\n",profile_vectorsAngleCos); }
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#else
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#define profileCall(c)
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#endif
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Unit clamp(Unit value, Unit valueMin, Unit valueMax)
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{
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profileCall(clamp);
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if (value < valueMin)
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return valueMin;
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@ -164,6 +201,8 @@ Unit clamp(Unit value, Unit valueMin, Unit valueMax)
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Unit cosInt(Unit input)
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{
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profileCall(cosInt);
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input = input % UNITS_PER_SQUARE;
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if (input < 0)
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@ -188,6 +227,8 @@ Unit sinInt(Unit input)
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Vector2D angleToDirection(Unit angle)
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{
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profileCall(angleToDirection);
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Vector2D result;
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result.x = cosInt(angle);
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@ -198,6 +239,8 @@ Vector2D angleToDirection(Unit angle)
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uint16_t sqrtInt(uint32_t value)
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{
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profileCall(sqrtInt);
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uint32_t result = 0;
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uint32_t a = value;
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@ -223,6 +266,8 @@ uint16_t sqrtInt(uint32_t value)
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Unit dist(Vector2D p1, Vector2D p2)
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{
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profileCall(dist);
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int32_t dx = p2.x - p1.x;
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int32_t dy = p2.y - p1.y;
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@ -234,6 +279,8 @@ Unit dist(Vector2D p1, Vector2D p2)
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Unit len(Vector2D v)
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{
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profileCall(len);
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v.x *= v.x;
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v.y *= v.y;
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@ -242,6 +289,8 @@ Unit len(Vector2D v)
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int8_t pointIsLeftOfRay(Vector2D point, Ray ray)
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{
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profileCall(pointIsLeftOfRay);
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int dX = point.x - ray.start.x;
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int dY = point.y - ray.start.y;
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return (ray.direction.x * dY - ray.direction.y * dX) > 0;
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@ -253,6 +302,8 @@ int8_t pointIsLeftOfRay(Vector2D point, Ray ray)
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*/
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void castRaySquare(Ray localRay, Vector2D *nextCellOff, Vector2D *collOff)
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{
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profileCall(castRaySquare);
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nextCellOff->x = 0;
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nextCellOff->y = 0;
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@ -318,6 +369,8 @@ void castRaySquare(Ray localRay, Vector2D *nextCellOff, Vector2D *collOff)
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void castRayMultiHit(Ray ray, ArrayFunction arrayFunc, HitResult *hitResults,
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uint16_t *hitResultsLen, RayConstraints constraints)
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{
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profileCall(castRayMultiHit);
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Vector2D initialPos = ray.start;
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Vector2D currentPos = ray.start;
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@ -384,6 +437,8 @@ void castRayMultiHit(Ray ray, ArrayFunction arrayFunc, HitResult *hitResults,
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HitResult castRay(Ray ray, ArrayFunction arrayFunc)
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{
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profileCall(castRay);
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HitResult result;
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uint16_t len;
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RayConstraints c;
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@ -430,6 +485,8 @@ void castRaysMultiHit(Camera cam, ArrayFunction arrayFunc, HitFunction hitFunc,
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Vector2D normalize(Vector2D v)
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{
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profileCall(normalize);
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Vector2D result;
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Unit l = len(v);
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@ -442,6 +499,8 @@ Vector2D normalize(Vector2D v)
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Unit vectorsAngleCos(Vector2D v1, Vector2D v2)
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{
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profileCall(vectorsAngleCos);
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v1 = normalize(v1);
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v2 = normalize(v2);
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7
test.c
7
test.c
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@ -4,6 +4,8 @@
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license: CC0
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*/
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#define RAYCASTLIB_PROFILE
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#include <stdio.h>
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#include "raycastlib.h"
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#include <sys/time.h>
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@ -139,6 +141,9 @@ int main()
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long t;
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t = measureTime(benchCastRays);
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printf("cast 1000000 rays: %ld ms\n",t);
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printf("\n");
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printProfile();
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return 0;
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}
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