mirror of
https://git.coom.tech/drummyfish/raycastlib.git
synced 2024-11-26 21:19:59 +01:00
396 lines
7.6 KiB
C
396 lines
7.6 KiB
C
/**
|
|
Tests for raycastlib.
|
|
|
|
license: CC0
|
|
*/
|
|
|
|
#define RCL_PROFILE
|
|
|
|
#define RCL_HORIZONTAL_FOV RCL_UNITS_PER_SQUARE / 2
|
|
|
|
#define RCL_PIXEL_FUNCTION pixelFunc
|
|
|
|
#include <stdio.h>
|
|
#include "../raycastlib.h"
|
|
#include <sys/time.h>
|
|
|
|
RCL_Unit testArrayFunc(int16_t x, int16_t y)
|
|
{
|
|
if (x > 12 || y > 12)
|
|
return x * y * RCL_UNITS_PER_SQUARE;
|
|
|
|
return (x < 0 || y < 0 || x > 9 || y > 9) ? RCL_UNITS_PER_SQUARE : 0;
|
|
}
|
|
|
|
RCL_Unit testArrayFunc2(int16_t x, int16_t y)
|
|
{
|
|
return testArrayFunc(x,y) + 10 * RCL_UNITS_PER_SQUARE;
|
|
}
|
|
|
|
/**
|
|
Simple automatic test function.
|
|
*/
|
|
|
|
int testSingleRay(RCL_Unit startX, RCL_Unit startY, RCL_Unit dirX, RCL_Unit dirY,
|
|
int16_t expectSquareX, int16_t expectSquareY, int16_t expectPointX,
|
|
int16_t expectPointY, int16_t tolerateError)
|
|
{
|
|
RCL_Ray r;
|
|
|
|
r.start.x = startX;
|
|
r.start.y = startY;
|
|
r.direction.x = dirX;
|
|
r.direction.y = dirY;
|
|
|
|
printf("- casting ray:\n");
|
|
RCL_logRay(r);
|
|
|
|
RCL_HitResult h = RCL_castRay(r,testArrayFunc);
|
|
|
|
printf("- result:\n");
|
|
RCL_logHitResult(h);
|
|
|
|
int result =
|
|
h.square.x == expectSquareX &&
|
|
h.square.y == expectSquareY &&
|
|
h.position.x <= expectPointX + tolerateError &&
|
|
h.position.x >= expectPointX - tolerateError &&
|
|
h.position.y <= expectPointY + tolerateError &&
|
|
h.position.y >= expectPointY - tolerateError;
|
|
|
|
if (result)
|
|
printf("\nOK\n\n");
|
|
else
|
|
printf("\nFAIL\n\n");
|
|
|
|
return result;
|
|
}
|
|
|
|
int testSingleMapping(RCL_Unit posX, RCL_Unit posY, RCL_Unit posZ, uint32_t resX,
|
|
uint32_t resY, RCL_Unit camX, RCL_Unit camY, RCL_Unit camZ, RCL_Unit camDir,
|
|
RCL_Unit expectX, RCL_Unit expectY, RCL_Unit expectZ)
|
|
{
|
|
int result;
|
|
|
|
RCL_Camera c;
|
|
|
|
c.resolution.x = resX;
|
|
c.resolution.y = resY;
|
|
c.position.x = camX;
|
|
c.position.y = camY;
|
|
c.direction = camDir;
|
|
c.height = camZ;
|
|
|
|
RCL_Vector2D pos;
|
|
RCL_Unit height;
|
|
|
|
pos.x = posX;
|
|
pos.y = posY;
|
|
height = posZ;
|
|
|
|
RCL_PixelInfo p;
|
|
|
|
printf("- mapping pixel: %d %d %d\n",posX,posY,posZ);
|
|
|
|
p = RCL_mapToScreen(pos,height,c);
|
|
|
|
printf("- result:\n");
|
|
RCL_logPixelInfo(p);
|
|
|
|
result = p.position.x == expectX && p.position.y == expectY &&
|
|
p.depth == expectZ;
|
|
|
|
if (result)
|
|
printf("\nOK\n\n");
|
|
else
|
|
printf("\nFAIL\n\n");
|
|
|
|
return result;
|
|
}
|
|
|
|
// returns milliseconds
|
|
long measureTime(void (*func)(void))
|
|
{
|
|
long start, end;
|
|
struct timeval timecheck;
|
|
|
|
gettimeofday(&timecheck, NULL);
|
|
start = (long) timecheck.tv_sec * 1000 + (long) timecheck.tv_usec / 1000;
|
|
|
|
func();
|
|
|
|
gettimeofday(&timecheck, NULL);
|
|
end = (long) timecheck.tv_sec * 1000 + (long) timecheck.tv_usec / 1000;
|
|
|
|
return end - start;
|
|
}
|
|
|
|
void benchCastRays()
|
|
{
|
|
RCL_Ray r;
|
|
|
|
r.start.x = RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 2;
|
|
r.start.y = 2 * RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 4;
|
|
|
|
RCL_Vector2D directions[8];
|
|
|
|
for (int i = 0; i < 8; ++i)
|
|
directions[i] = RCL_angleToDirection(RCL_UNITS_PER_SQUARE / 8 * i);
|
|
|
|
for (int i = 0; i < 1000000; ++i)
|
|
{
|
|
r.direction = directions[i % 8];
|
|
RCL_castRay(r,testArrayFunc);
|
|
}
|
|
}
|
|
|
|
void benchmarkMapping()
|
|
{
|
|
RCL_Camera c;
|
|
|
|
c.resolution.x = 1024;
|
|
c.resolution.y = 768;
|
|
c.position.x = RCL_UNITS_PER_SQUARE / 2;
|
|
c.position.y = RCL_UNITS_PER_SQUARE * 2;
|
|
c.direction = RCL_UNITS_PER_SQUARE / 8;
|
|
c.height = 0;
|
|
|
|
RCL_PixelInfo p;
|
|
|
|
RCL_Vector2D pos;
|
|
RCL_Unit height;
|
|
|
|
pos.x = -1024 * RCL_UNITS_PER_SQUARE;
|
|
pos.y = -512 * RCL_UNITS_PER_SQUARE;
|
|
height = 0;
|
|
|
|
for (int i = 0; i < 1000000; ++i)
|
|
{
|
|
p = RCL_mapToScreen(pos,height,c);
|
|
|
|
pos.x += 4;
|
|
pos.y += 8;
|
|
height = (height + 16) % 1024;
|
|
}
|
|
}
|
|
|
|
int countPixels = 0;
|
|
uint32_t *pixelCounts = 0;
|
|
RCL_Camera countCamera;
|
|
int countOK = 1;
|
|
|
|
void pixelFunc(RCL_PixelInfo *p)
|
|
{
|
|
if (countPixels)
|
|
{
|
|
if (p->position.x >= countCamera.resolution.x || p->position.x < 0 ||
|
|
p->position.y >= countCamera.resolution.y || p->position.y < 0)
|
|
{
|
|
printf("ERROR: writing pixel outside screen at %d %d!\n",
|
|
p->position.x,p->position.y);
|
|
|
|
countOK = 0;
|
|
}
|
|
else
|
|
pixelCounts[p->position.y * countCamera.resolution.x + p->position.x]++;
|
|
}
|
|
}
|
|
|
|
int testPixelCount(RCL_Unit camX, RCL_Unit camY, RCL_Unit camZ,
|
|
RCL_Unit camDir, RCL_Unit camShear, uint16_t camResX, uint16_t camResY,
|
|
int complexRender)
|
|
{
|
|
printf("Counting rendered pixels...\n");
|
|
|
|
RCL_RayConstraints constraints;
|
|
RCL_Camera c;
|
|
|
|
RCL_initRayConstraints(&constraints);
|
|
constraints.maxSteps = 32;
|
|
RCL_initCamera(&c);
|
|
c.position.x = camX;
|
|
c.position.y = camY;
|
|
c.direction = camDir;
|
|
c.shear = camShear;
|
|
c.height = camZ;
|
|
c.resolution.x = camResX;
|
|
c.resolution.y = camResY;
|
|
|
|
uint32_t pixels[camResX * camResY];
|
|
|
|
for (int32_t i = 0; i < camResX * camResY; ++i)
|
|
pixels[i] = 0;
|
|
|
|
pixelCounts = pixels;
|
|
countCamera = c;
|
|
countPixels = 1;
|
|
|
|
countOK = 1;
|
|
|
|
if (complexRender)
|
|
RCL_renderComplex(c,testArrayFunc,testArrayFunc2,0,constraints);
|
|
else
|
|
RCL_renderSimple(c,testArrayFunc,0,0,constraints);
|
|
|
|
for (uint32_t y = 0; y < camResY; ++y)
|
|
for (uint32_t x = 0; x < camResX; ++x)
|
|
{
|
|
uint32_t index = y * camResX + x;
|
|
|
|
if (pixels[index] != 1)
|
|
{
|
|
printf("ERROR: pixel at %d %d written %d times!\n",x,y,pixels[index]);
|
|
countOK = 0;
|
|
}
|
|
}
|
|
|
|
return countOK;
|
|
}
|
|
|
|
void benchmarkRender()
|
|
{
|
|
RCL_Camera c;
|
|
|
|
c.resolution.x = 640;
|
|
c.resolution.y = 300;
|
|
c.position.x = 10;
|
|
c.position.y = 12;
|
|
c.direction = 100;
|
|
c.height = 200;
|
|
|
|
RCL_RayConstraints constraints;
|
|
|
|
constraints.maxHits = 10;
|
|
constraints.maxSteps = 12;
|
|
|
|
countPixels = 0;
|
|
|
|
for (int i = 0; i < 100; ++i)
|
|
RCL_renderComplex(c,testArrayFunc,testArrayFunc2,0,constraints);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
printf("Testing raycastlib.\n");
|
|
|
|
if (!testSingleRay(
|
|
3 * RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 2,
|
|
4 * RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 2,
|
|
100, 50,
|
|
10, 7,
|
|
10240, 7936,
|
|
16))
|
|
return 1;
|
|
|
|
if (!testSingleRay(
|
|
0,
|
|
0,
|
|
100, 100,
|
|
9, 10,
|
|
10240, 10240,
|
|
16))
|
|
return 1;
|
|
|
|
if (!testSingleRay(
|
|
400,
|
|
6811,
|
|
-629,805,
|
|
-1, 7,
|
|
-1, 7325,
|
|
16))
|
|
return 1;
|
|
|
|
if (!testSingleRay(
|
|
-4 * RCL_UNITS_PER_SQUARE - RCL_UNITS_PER_SQUARE / 2,
|
|
7 * RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 3,
|
|
100,-100,
|
|
0, 2,
|
|
1, 2900,
|
|
16))
|
|
return 1;
|
|
|
|
printf("testing perspective scale...\n");
|
|
|
|
for (RCL_Unit i = 1; i < 100; ++i)
|
|
{
|
|
RCL_Unit size = i * 3;
|
|
RCL_Unit distance = i * 6 + 200;
|
|
|
|
RCL_Unit scaled = RCL_perspectiveScale(size,distance);
|
|
RCL_Unit distance2 = RCL_perspectiveScaleInverse(size,scaled);
|
|
|
|
if (RCL_absVal(distance - distance2 > 2))
|
|
printf("ERROR: distance: %d, distance inverse: %d\n",distance,distance2);
|
|
}
|
|
|
|
printf("OK\n");
|
|
|
|
if (!testPixelCount(
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
0,
|
|
0,
|
|
128,
|
|
64,
|
|
1))
|
|
return 1;
|
|
|
|
if (!testPixelCount(
|
|
3 * RCL_UNITS_PER_SQUARE + 100,
|
|
4 * RCL_UNITS_PER_SQUARE + RCL_UNITS_PER_SQUARE / 3,
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
512,
|
|
0,
|
|
120,
|
|
60,
|
|
0))
|
|
return 1;
|
|
|
|
if (!testPixelCount(
|
|
- RCL_UNITS_PER_SQUARE,
|
|
0,
|
|
300,
|
|
-600,
|
|
-120,
|
|
64,
|
|
68,
|
|
1))
|
|
return 1;
|
|
|
|
printf("OK\n");
|
|
|
|
/*
|
|
if (!testSingleMapping(
|
|
-RCL_UNITS_PER_SQUARE,
|
|
0,
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
1280,
|
|
640,
|
|
0,
|
|
0,
|
|
0,
|
|
RCL_UNITS_PER_SQUARE / 2,
|
|
640,
|
|
0,
|
|
1024
|
|
))
|
|
return -1;
|
|
*/
|
|
printf("benchmark:\n");
|
|
|
|
long t;
|
|
t = measureTime(benchCastRays);
|
|
printf("cast 1000000 rays: %ld ms\n",t);
|
|
|
|
t = measureTime(benchmarkMapping);
|
|
printf("map point to screen 1000000 times: %ld ms\n",t);
|
|
|
|
t = measureTime(benchmarkRender);
|
|
printf("render 100 times: %ld ms\n",t);
|
|
|
|
printf("\n");
|
|
printProfile();
|
|
|
|
return 0;
|
|
}
|