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use shift for masks; fix tests for 16-bit color depth

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Caio Freitas de Oliveira 2022-10-11 20:30:56 -03:00 committed by Brenden Matthews
parent ca56109dc9
commit 48b7271c0d
2 changed files with 43 additions and 18 deletions
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15
src/gradient.cc
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@ -49,8 +49,8 @@ gradient_factory::gradient_factory(int width, unsigned long first_colour,
if (!is_set) {
setup_colour_depth();
setup_masks();
setup_shifts();
setup_masks();
is_set = true;
}
}
@ -70,17 +70,18 @@ void gradient_factory::setup_masks() {
mask[2] |= 1 << i;
}
if (colour_depth % 3 == 1) { mask[1] |= 1 << (colour_depth / 3); }
if (colour_depth % 3 == 1) {
mask[1] |= 1 << (colour_depth / 3);
}
mask[0] = mask[0] << (2 * colour_depth / 3 + colour_depth % 3);
mask[1] = mask[1] << (colour_depth / 3);
for (int i = 0; i < 3; i++) {
mask[i] = mask[i] << shift[i];
}
}
void gradient_factory::setup_colour_depth() {
#ifdef BUILD_X11
if (state == nullptr) {
colour_depth = 24; // testing purposes
} else if (out_to_x.get(*state)) {
if (out_to_x.get(*state)) {
colour_depth = DisplayPlanes(display, screen);
} else
#endif /* BUILD_X11 */

46
tests/test-gradient.cc
View File

@ -32,9 +32,27 @@
#include <gradient.h>
const int width = 4;
#ifdef BUILD_GUI // 24-bit color depth
const long colour = 0x996633; // brown
const long colour_hue = 30;
const long colour_value = 0x99;
const long expected_hue = 256;
const long expected_value = 0x99; // max(0x99, 0x66, 0x33)
const long expected_chroma = 0x66; // (0x99 - 0x33)
const long expected_luma = 20712665L;
const long expected_saturation = 122880L;
const long expected_red = 0x99;
const long expected_green = 0x66;
const long expected_blue = 0x33;
#else // 16-bit color depth
const long colour = 0x99A6; // brown
const long expected_hue = 275;
const long expected_value = 0x13; // max(0x13, 0x0d, 0x06)
const long expected_chroma = 0x0d; // (0x1a - 0x06)
const long expected_luma = 2610173L;
const long expected_saturation = 126113L;
const long expected_red = 0x13;
const long expected_green = 0x0d;
const long expected_blue = 0x06;
#endif
const long full_scale = conky::gradient_factory::SCALE360;
@ -47,13 +65,13 @@ TEST_CASE("gradient_factory::convert_from_rgb returns correct value") {
factory->convert_from_rgb(colour, result);
SECTION("red") {
REQUIRE(result[0] == 0x99 * full_scale);
REQUIRE(result[0] == expected_red * full_scale);
}
SECTION("green") {
REQUIRE(result[1] == 0x66 * full_scale);
REQUIRE(result[1] == expected_green * full_scale);
}
SECTION("blue") {
REQUIRE(result[2] == 0x33 * full_scale);
REQUIRE(result[2] == expected_blue * full_scale);
}
delete factory;
@ -66,13 +84,13 @@ TEST_CASE("gradient_factory::convert_from_rgb returns correct value") {
factory->convert_from_rgb(colour, result);
SECTION("hue") {
REQUIRE(result[0] == colour_hue * conky::gradient_factory::SCALE);
REQUIRE(result[0] == expected_hue * 60);
}
SECTION("saturation") {
REQUIRE(result[1] == conky::gradient_factory::SCALE * 240L);
REQUIRE(result[1] == expected_saturation);
}
SECTION("value") {
REQUIRE(result[2] == colour_value * full_scale);
REQUIRE(result[2] == expected_value * full_scale);
}
delete factory;
@ -85,13 +103,13 @@ TEST_CASE("gradient_factory::convert_from_rgb returns correct value") {
factory->convert_from_rgb(colour, result);
SECTION("hue") {
REQUIRE(result[0] == colour_hue * conky::gradient_factory::SCALE);
REQUIRE(result[0] == expected_hue * 60);
}
SECTION("chroma") {
REQUIRE(result[1] == 0x66 * full_scale);
REQUIRE(result[1] == expected_chroma * full_scale);
}
SECTION("luma") {
REQUIRE(result[2] == 20712665L);
REQUIRE(result[2] == expected_luma);
}
delete factory;
@ -113,6 +131,11 @@ TEST_CASE(
delete factory;
}
/*
* Due to lack of precision, the HSV and HCL functions are not reversible
* if color depth is less than 24-bit
*/
#ifdef BUILD_GUI
SECTION("hsv_gradient_factory") {
long tmp[3];
auto factory = new conky::hsv_gradient_factory(width, colour, colour);
@ -134,4 +157,5 @@ TEST_CASE(
delete factory;
}
#endif
}