64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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#ifndef __DRAW_H__
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#define __DRAW_H__
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#define WIDTH 480
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#define HEIGHT 240
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typedef unsigned char u8;
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typedef signed char i8;
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typedef unsigned short u16;
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typedef signed short i16;
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typedef unsigned int u32;
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typedef signed int i32;
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typedef u16 Color;
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extern Color framebuffer[WIDTH * HEIGHT];
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#define rgb565(r, g, b) ((((u16)r & 0b11111000) << 8) | (((u16)g & 0b11111100) << 3) | (((u16)b & 0xff) >> 3))
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#define rgb(r, g, b) (((u32)(r & 0xff) << 24) | ((u32)(g & 0xff) << 16) | ((u32)(b & 0xff) << 8) | 0xff)
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void from_hsv(u8 h, u8 s, u8 v, u8* r, u8* g, u8* b);
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void to_hsv(u8 r, u8 g, u8 b, u8* h, u8* s, u8* v);
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void clear_screen();
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void draw_point(i32 x, i32 y, Color color);
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void fill_rect(i32 x, i32 y, i32 width, i32 height, Color color);
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void draw_rect(i32 x, i32 y, i32 width, i32 height, Color color);
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void draw_line(i32 x0, i32 y0, i32 x1, i32 y1, Color color);
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void draw_circle(i32 xm, i32 ym, i32 r, Color color);
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void horizontal_line(i32 x1, i32 x2, i32 y, Color color);
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void fill_circle(i32 xm, i32 ym, i32 r, Color color);
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void copy(int n, float *points, float* result);
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void scale(int n, float* points, float factorX, float factorY);
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void translate(int n, float* points, float x, float y);
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void rotate(int n, float* points, float angle);
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void draw(int n, float* points, int close, Color color);
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void fill(int n, float* points, int wrap, Color color);
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int point_in_polygon(int n, float* points, float x, float y);
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int line_intersect(float* l1, float* l2);
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int polygon_intersect(int n, float* a, int m, float* b);
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#define MIRROR_V 1
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#define MIRROR_H 2
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#define ROTATE_L 4
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void blit(i32 x, i32 y, i32 source_x, i32 source_y, i32 width, i32 height, Color* source, i32 source_width, i32 source_height);
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void blit_masked(i32 x, i32 y, i32 source_x, i32 source_y, i32 width, i32 height, Color mask, Color* source, i32 source_width, i32 source_height);
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typedef struct {
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char text[4];
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u8 width, height;
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u16 offset;
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} glyph_t;
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typedef struct {
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u8* pixels;
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glyph_t* glyphs;
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int num_glyphs;
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int line_height;
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} font_t;
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font_t* load_font(char* font_data, int font_data_size);
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void draw_text(font_t* font, i32 x, i32 y, Color color, char* text);
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void draw_printf(font_t* font, i32 x, i32 y, Color color, char* format, ...);
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#endif
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