morph

commit 68b7a8e7640e3445da89fa3d573e282791c9d57c
parent 92ca84cdf5c13181a2d54b3514d021d090cbc39e
Author: Pollux <pollux@pollux.codes>
Date:   Sun, 20 Jul 2025 00:13:15 -0500

feat: Generate colorscheme and output

Signed-off-by: Pollux <pollux@pollux.codes>

Diffstat:
M
morph.c
 | 
71
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------

1 file changed, 63 insertions(+), 8 deletions(-)
diff --git a/morph.c b/morph.c
@@ -8,11 +8,17 @@
 
 #include <Imlib2.h>
 
-#define PRIMARY_COLOR_COUNT 32
+#define PRIMARY_COLOR_COUNT 128
+#define PI 3.1415926535
 
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #define max(a, b) ((a) > (b) ? (a) : (b))
 
+#define TARGET_COLOR(name, cr, cg, cb, cl) \
+	color = match_color(palette, palette_weights, PRIMARY_COLOR_COUNT*4, rgb_to_lab((col_rgb_t){ .r = cr, .g = cg, .b = cb}));\
+	color.l = cl;\
+	export_color(name, color);
+
 /// Type to represent a color in the srgb color space. Use the functions
 /// rgb_to_lab and lab_to_rgb to convert between different color spaces.
 typedef struct {
@@ -300,6 +306,37 @@ hue_shift(col_lab_t in, float angle) {
 	return out;
 }
 
+col_lab_t
+match_color(col_lab_t *palette, float *palette_weights, size_t palette_size, col_lab_t target_color) {
+	
+	float best_score = 0;
+	col_lab_t best_color;
+
+	for(int c = 0; c < palette_size; c++) {
+		col_lab_t palette_color = palette[c];
+		float color_distance = sqrtf((palette_color.l - target_color.l)*(palette_color.l - target_color.l) + (palette_color.a - target_color.a)*(palette_color.a - target_color.a) + (palette_color.b - target_color.b)*(palette_color.b - target_color.b));
+		float score = palette_weights[c] / color_distance;
+
+		if(score > best_score) {
+			best_score = score;
+			best_color = palette_color;
+		}
+	}
+
+	return best_color;
+}
+
+void
+export_color(const char* name, col_lab_t color) {
+	col_rgb_t rgb = lab_to_rgb(color);
+
+	int red = min(1, max(0, rgb.r)) * 255;
+	int green = min(1, max(0, rgb.g)) * 255;
+	int blue = min(1, max(0, rgb.b)) * 255;
+
+	printf("%s: #%02x%02x%02x\n", name, red, green, blue);
+}
+
 int
 main(int argc, char **argv) {
 
@@ -326,17 +363,35 @@ main(int argc, char **argv) {
 	for(int c = 0; c < PRIMARY_COLOR_COUNT; c++) {
 		palette[4 * c] = primary_colors[c];
 		palette_weights[4 * c] = 1;
-		palette[4 * c + 1] = hue_shift(primary_colors[c], M_PI);
+		palette[4 * c + 1] = hue_shift(primary_colors[c], PI);
 		palette_weights[4 * c] = 0.5;
-		palette[4 * c + 2] = hue_shift(primary_colors[c], M_PI / 6);
+		palette[4 * c + 2] = hue_shift(primary_colors[c], PI / 6);
 		palette_weights[4 * c] = 0.3;
-		palette[4 * c + 3] = hue_shift(primary_colors[c], -M_PI / 6);
+		palette[4 * c + 3] = hue_shift(primary_colors[c], -PI / 6);
 		palette_weights[4 * c] = 0.3;
 	}
-
-	// TODO: Match colors with target colors
-
-	// TODO: Export colors
+	
+	col_lab_t color;
+
+	TARGET_COLOR("st.color0" , 0, 0, 0, 0.2)
+	TARGET_COLOR("st.color1" , 1, 0, 0, 0.7)
+	TARGET_COLOR("st.color2" , 0, 1, 0, 0.7)
+	TARGET_COLOR("st.color3" , 1, 1, 0, 0.7)
+	TARGET_COLOR("st.color4" , 0, 0, 1, 0.7)
+	TARGET_COLOR("st.color5" , 1, 0, 1, 0.7)
+	TARGET_COLOR("st.color6" , 0, 1, 1, 0.7)
+	TARGET_COLOR("st.color7" , 0, 0, 0, 0.9)
+	TARGET_COLOR("st.color8" , 0, 0, 0, 0.4)
+	TARGET_COLOR("st.color9" , 1, 0, 0, 0.8)
+	TARGET_COLOR("st.color10", 0, 1, 0, 0.8)
+	TARGET_COLOR("st.color11", 1, 1, 0, 0.8)
+	TARGET_COLOR("st.color12", 0, 0, 1, 0.8)
+	TARGET_COLOR("st.color13", 1, 0, 1, 0.8)
+	TARGET_COLOR("st.color14", 0, 1, 1, 0.8)
+	TARGET_COLOR("st.color15", 0, 0, 0, 1.0)
+
+	TARGET_COLOR("st.surface", 0, 0, 0, 0.1)
+	TARGET_COLOR("st.on_surface", 0, 0, 0, 1.0)
 
 	free(image_pixels);
 	free(image_pixels_lab);