mirror of
https://github.com/UpsilonNumworks/Upsilon.git
synced 2026-01-19 08:47:28 +01:00
42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
#include <quiz.h>
|
|
#include <kandinsky.h>
|
|
#include <assert.h>
|
|
|
|
QUIZ_CASE(kandinsky_color_rgb) {
|
|
quiz_assert(sizeof(KDColor) == 2); // We really want KDColor to be packed
|
|
|
|
quiz_assert(KDColor::RGB24(0xFF0000) == 0xF800);
|
|
quiz_assert(KDColor::RGB24(0x00FF00) == 0x07E0);
|
|
quiz_assert(KDColor::RGB24(0x0000FF) == 0x1F);
|
|
/* R = 0x12 = 0b 0001 0010. 5 most important bits are 00010.
|
|
* G = 0x34 = 0b 0011 0100. 6 most important bits are 001101.
|
|
* B = 0x56 = 0b 0101 0110. 5 most important bits are 01010.
|
|
* KDColor = 0b 00010 001101 01010
|
|
* = 0b 0001 0001 1010 1010
|
|
* = 0x 1 1 A A */
|
|
quiz_assert(KDColor::RGB24(0x123456) == 0x11AA);
|
|
}
|
|
|
|
void assert_colors_blend_to(KDColor c1, KDColor c2, uint8_t alpha, KDColor res) {
|
|
quiz_assert(KDColor::blend(c1, c2, alpha) == res );
|
|
}
|
|
|
|
QUIZ_CASE(kandinsky_color_blend) {
|
|
KDColor midGray = KDColor::RGB24(0x7F7F7F);
|
|
KDColor midTurquoise = KDColor::RGB24(0x007F7F);
|
|
|
|
assert_colors_blend_to(KDColorWhite, KDColorBlack, 0x00, KDColorBlack);
|
|
assert_colors_blend_to(KDColorWhite, KDColorBlack, 0xFF, KDColorWhite);
|
|
assert_colors_blend_to(KDColorWhite, KDColorBlack, 0x7F, midGray);
|
|
|
|
assert_colors_blend_to(KDColorGreen, KDColorBlue, 0x00, KDColorBlue);
|
|
assert_colors_blend_to(KDColorGreen, KDColorBlue, 0xFF, KDColorGreen);
|
|
assert_colors_blend_to(KDColorGreen, KDColorBlue, 0x7F, midTurquoise);
|
|
|
|
// Assert that blending two identical colors does not produce strange colors.
|
|
for (uint16_t col = 0; col < 0xFFFF; col++) {
|
|
KDColor color = KDColor::RGB16(col);
|
|
assert_colors_blend_to(color, color, col>>8, color);
|
|
}
|
|
}
|