static int create_color(int i, int scale) {
int r = scale_color(i, 1, scale);
int g = scale_color(i, 2, scale);
int b = scale_color(i, 3, scale);
int rgb = 16 + scale * scale * r + scale * g + b;
/* In the case of white and black we need to use the ANSI colors */
if (r == g && g == b) {
if (b == 0) rgb = 0;
if (b == scale) rgb = 15;
}
return rgb;
}
void Scene::create_colorscale() {
const ColorScale &scale = colorScales[scaleMethod];
for (int i=0; i<MAPCLRS; i++) {
float *rcol = colorData + 3*(BEGMAP + i);
float relpos = float(i) / float(MAPCLRS -1);
scale_color(scale.min, scale.mid, scale.max, scaleMid, relpos, scaleMin,
rcol);
}
root.color_scale_changed();
}
static
void breather_panels(struct render_args* args) {
int i;
double rate = args->effect->argument ? args->effect->argument : 1.0;
double c = (sin((args->framenum / rate) * M_2_PI) / 2.0) + 0.5;
for (i = 0; i < args->framelen; i += 3) {
char* pixel = &args->framebuf[i];
union color color = args->effect->color_arg.colors[i / 3];
union color scaled = {
.rgb = {
.red = scale_color(color.rgb.red, c, 0),
.green = scale_color(color.rgb.green, c, 0),
.blue = scale_color(color.rgb.blue, c, 0),
}
};
pixel[0] = scaled.rgb.red;
pixel[1] = scaled.rgb.green;
pixel[2] = scaled.rgb.blue;
}
}
static
void breather_treads(struct render_args* args) {
int i;
int num_pixels = args->framelen/3;
union color color = args->effect->color_arg.color;
double rate = args->effect->argument ? args->effect->argument : 1.0;
double c = (sin((args->framenum / rate) * M_2_PI) / 2.0) + 0.5;
union color scaled = {
.rgb = {
.red = scale_color(color.rgb.red, c, 1),
.green = scale_color(color.rgb.green, c, 1),
.blue = scale_color(color.rgb.blue, c, 1),
}
};
for (i = 0; i < num_pixels; i++) {
char* pixel = &args->framebuf[i*3];
pixel[0] = 0x80 | scaled.rgb.green;
pixel[1] = 0x80 | scaled.rgb.red;
pixel[2] = 0x80 | scaled.rgb.blue;
}
}
