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small3dlib/test.c
Miloslav Číž 0a27bbe2b5 Expand tests
2019-05-05 02:42:16 +02:00

251 lines
7.3 KiB
C
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#include <stdio.h>
#define S3L_PIXEL_FUNCTION pixelFunc
#include "s3l.h"
#define TEST_BUFFER_W 16
#define TEST_BUFFER_H 16
uint8_t testRaster[TEST_BUFFER_W * TEST_BUFFER_H];
void pixelFunc(S3L_PixelInfo *p)
{
testRaster[p->y * TEST_BUFFER_W + p->x] = 1;
}
uint16_t testTriangleRasterization(
S3L_ScreenCoord x0,
S3L_ScreenCoord y0,
S3L_ScreenCoord x1,
S3L_ScreenCoord y1,
S3L_ScreenCoord x2,
S3L_ScreenCoord y2,
uint8_t *expectedPixels
)
{
printf(" --- testing tringle rasterization (|: expected, -: rasterized) ----\n");
S3L_DrawConfig conf;
conf.backfaceCulling = S3L_BACKFACE_CULLING_NONE;
conf.mode = S3L_MODE_TRIANGLES;
memset(testRaster,0,TEST_BUFFER_W * TEST_BUFFER_H);
S3L_drawTriangle(x0,y0,x1,y1,x2,y2,conf,0);
printf(" 0123456789ABCDEF\n");
uint16_t numErrors = 0;
for (uint8_t y = 0; y < TEST_BUFFER_H; ++y)
{
printf(" %d",y);
if (y < 10)
printf(" ");
for (uint8_t x = 0; x < TEST_BUFFER_W; ++x)
{
uint8_t expected = expectedPixels[y * TEST_BUFFER_W + x];
uint8_t rasterized = testRaster[y * TEST_BUFFER_W + x];
char c =
expected ?
(rasterized ? '+' : '|')
:
(rasterized ? '-' : ' ');
if (c == '-' || c == '|')
numErrors++;
printf("%c",c);
}
printf("\n");
}
printf(" errors: %d\n\n",numErrors);
return numErrors;
}
uint16_t testRasterization()
{
printf("\n=== TESTING RASTERIZATION ===\n");
uint16_t numErrors = 0;
uint8_t pixelsEmpty[TEST_BUFFER_W * TEST_BUFFER_H];
memset(pixelsEmpty,0,TEST_BUFFER_W * TEST_BUFFER_H);
numErrors += testTriangleRasterization(5,3, 3,3, 9,3, pixelsEmpty);
numErrors += testTriangleRasterization(9,4, 9,0, 9,9, pixelsEmpty);
numErrors += testTriangleRasterization(3,3, 6,6, 7,7, pixelsEmpty);
numErrors += testTriangleRasterization(5,5, 3,7, 9,1, pixelsEmpty);
uint8_t pixels1[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 1
0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0, // 2
0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0, // 3
0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0, // 4
0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0, // 5
0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(4,1, 1,6, 9,7, pixels1);
uint8_t pixels2[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 1
0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0, // 2
0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0, // 3
0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0, // 4
0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0, // 5
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(7,1, 1,2, 4,6, pixels2);
uint8_t pixels3[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 1
0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, // 2
0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, // 3
0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0, // 4
0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0, // 5
0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(2,1, 1,3, 6,9, pixels3);
uint8_t pixels4[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 1
0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0, // 2
0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0, // 3
0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0, // 4
0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0, // 5
0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(4,8, 4,2, 0,0, pixels4);
uint8_t pixels5[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, // 1
0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0, // 2
0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0, // 3
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 4
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 5
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(6,2, 2,4, 0,0, pixels5);
uint8_t pixels6[TEST_BUFFER_W * TEST_BUFFER_H] =
{
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 0
0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0, // 1
1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0, // 2
0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0, // 3
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 4
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 5
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 6
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 7
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 8
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 9
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // A
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // B
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // C
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // D
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // E
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // F
};
numErrors += testTriangleRasterization(0,2, 6,0, 4,4, pixels6);
printf("total rasterization errors: %d\n",numErrors);
}
int main()
{
S3L_Mat4 m, m2;
S3L_Vec4 v;
S3L_initMat4(&m);
S3L_writeMat4(m);
S3L_initVec4(&v);
S3L_writeVec4(v);
S3L_vec4Xmat4(&v,&m);
S3L_writeVec4(v);
S3L_makeTranslationMat(100,200,300,&m2);
S3L_writeMat4(m2);
S3L_mat4Xmat4(&m,&m2);
S3L_writeMat4(m);
testRasterization();
return 0;
}
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