| 9 | using fl::u8x8; |
| 10 | |
| 11 | FL_TEST_FILE(FL_FILEPATH) { |
| 12 | |
| 13 | FL_TEST_CASE("Canvas<CRGB16> drawDisc") { |
| 14 | FL_SUBCASE("center pixel is lit") { |
| 15 | CRGB16 buffer[1024] = {}; |
| 16 | fl::Canvas<CRGB16> canvas(fl::span<CRGB16>(buffer, 1024), 32, 32); |
| 17 | canvas.drawDisc(CRGB16(u8x8(255.0f), u8x8(0.0f), u8x8(0.0f)), 15.5f, 15.5f, 5.0f); |
| 18 | FL_CHECK(buffer[15 * 32 + 15].r.raw() > 0); |
| 19 | } |
| 20 | |
| 21 | FL_SUBCASE("pixel beyond radius is black") { |
| 22 | CRGB16 buffer[1024] = {}; |
| 23 | fl::Canvas<CRGB16> canvas(fl::span<CRGB16>(buffer, 1024), 32, 32); |
| 24 | canvas.drawDisc(CRGB16(u8x8(255.0f), u8x8(0.0f), u8x8(0.0f)), 15.5f, 15.5f, 5.0f); |
| 25 | FL_CHECK(buffer[22 * 32 + 15].r.raw() == 0); |
| 26 | } |
| 27 | |
| 28 | FL_SUBCASE("AA fringe has intermediate brightness") { |
| 29 | CRGB16 buffer[1024] = {}; |
| 30 | fl::Canvas<CRGB16> canvas(fl::span<CRGB16>(buffer, 1024), 32, 32); |
| 31 | canvas.drawDisc(CRGB16(u8x8(255.0f), u8x8(0.0f), u8x8(0.0f)), 15.5f, 15.5f, 5.5f); |
| 32 | |
| 33 | bool found_aa = false; |
| 34 | for (int y = 10; y < 21; ++y) { |
| 35 | for (int x = 10; x < 21; ++x) { |
| 36 | float dist = fl::sqrt((x - 15.5f) * (x - 15.5f) + (y - 15.5f) * (y - 15.5f)); |
| 37 | if (dist > 5.0f && dist < 6.0f) { |
| 38 | fl::u16 rv = buffer[y * 32 + x].r.raw(); |
| 39 | if (rv > 0 && rv < 0xFF00) { |
| 40 | found_aa = true; |
| 41 | break; |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 | if (found_aa) break; |
| 46 | } |
| 47 | FL_CHECK(found_aa); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | FL_TEST_CASE("Canvas<CRGB16> drawLine") { |
| 52 | FL_SUBCASE("horizontal line lights correct pixels") { |
| 53 | CRGB16 buffer[256] = {}; |
| 54 | fl::Canvas<CRGB16> canvas(fl::span<CRGB16>(buffer, 256), 16, 16); |
| 55 | canvas.drawLine(CRGB16(u8x8(255.0f), u8x8(0.0f), u8x8(0.0f)), 2.0f, 8.0f, 13.0f, 8.0f); |
| 56 | |
| 57 | int non_zero = 0; |
| 58 | for (int x = 0; x < 16; ++x) { |
| 59 | if (buffer[8 * 16 + x].r.raw() > 0) non_zero++; |
| 60 | } |
| 61 | FL_CHECK(non_zero >= 10); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | FL_TEST_CASE("Canvas<CRGB16> drawRing") { |
| 66 | FL_SUBCASE("center hole is transparent") { |
| 67 | CRGB16 buffer[1024] = {}; |
| 68 | fl::Canvas<CRGB16> canvas(fl::span<CRGB16>(buffer, 1024), 32, 32); |