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#ifndef GRAGL_H
#define GRAGL_H
#include <stdint.h>
typedef float ConstColor[];
typedef float *Color;
#define PLOT_AUTO(plot) { .function = plot, .nfuncs = sizeof(plot) / sizeof(Function), .x = 3, .y = 0, .rsize = 5, .step = 0.001 }
#define FUNC_AUTO(f) { .func = f, .color = AUTO_COLORS[(auto_color_index = (auto_color_index + 1) % 5)], .width = 3 }
static ConstColor COLOR_RED = { 0.800f, 0.140f, 0.120f, 1.0f };
static ConstColor COLOR_GREEN = { 0.596f, 0.592f, 0.102f, 1.0f };
static ConstColor COLOR_YELLOW = { 0.843f, 0.600f, 0.129f, 1.0f };
static ConstColor COLOR_BLUE = { 0.271f, 0.522f, 0.533f, 1.0f };
static ConstColor COLOR_PURPLE = { 0.694f, 0.384f, 0.525f, 1.0f };
static ConstColor COLOR_AQUA = { 0.408f, 0.616f, 0.416f, 1.0f };
static ConstColor COLOR_BLACK = { 0.157f, 0.157f, 0.157f, 1.0f };
static ConstColor COLOR_DARKER = { 0.114f, 0.125f, 0.129f, 1.0f };
static ConstColor COLOR_WHITE = { 0.922f, 0.859f, 0.698f, 1.0f };
static ConstColor COLOR_GRAY = { 0.659f, 0.600f, 0.518f, 1.0f };
static unsigned auto_color_index = 0;
static Color AUTO_COLORS[] = {
COLOR_RED,
COLOR_GREEN,
COLOR_YELLOW,
COLOR_BLUE,
COLOR_PURPLE,
COLOR_AQUA
};
typedef struct {
double x;
double y;
} Point2d;
typedef struct {
double v;
uint8_t valid;
} Scalar;
typedef struct {
Scalar (*func)(double);
Color color;
double width;
} Function;
typedef struct {
unsigned width;
unsigned height;
double x;
double y;
double rsize;
double step;
Function *function;
unsigned nfuncs;
} Plot2d;
typedef struct {
Plot2d * plots;
unsigned n;
unsigned padding;
} Plot2dGroup;
Plot2dGroup * create_plot2d_group(int num_args, ...);
void free_plot2d_group(Plot2dGroup *);
void plot(Plot2dGroup *);
#endif
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