diff options
Diffstat (limited to 'render/render.h')
| -rwxr-xr-x[-rw-r--r--] | render/render.h | 99 |
1 files changed, 96 insertions, 3 deletions
diff --git a/render/render.h b/render/render.h index c060ebc..26b7028 100644..100755 --- a/render/render.h +++ b/render/render.h @@ -90,8 +90,8 @@ struct _rect2d { PRIM_STRUCT double rx0, ry0, rx1, ry1; /* Rectangle verticies */ color2d c; /* Color of rectangle (if dpat == NULL) */ - double (*dpat)[MXPATSIZE][MXPATSIZE][TOTC2D]; - int dp_w, dp_h; + double (*dpat)[MXPATSIZE][MXPATSIZE][TOTC2D]; /* Special for ChromeCast experiments */ + int dp_w, dp_h; /* dpat dimensions */ }; typedef struct _rect2d rect2d; prim2d *new_rect2d(struct _render2d *s, double x, double y, double w, double h, color2d c); @@ -122,6 +122,48 @@ struct _trivs2d { prim2d *new_trivs2d(struct _render2d *s, double v[3][2], color2d c[3]); /* ------------------------------------ */ +/* Polygon */ + +/* Solid polygon primitive */ +struct _poly2d { + PRIM_STRUCT + color2d c; /* Color of polyangle (if dpat == NULL) */ + int n; /* Number of verticies */ + double co[1][2]; /* Array of [n][2] verticies */ +}; typedef struct _poly2d poly2d; + +prim2d *new_poly2d(struct _render2d *s, int n, double v[][2], color2d c); + +#ifdef NEVER +int pnpoly(int nvert, float *vertx, float *verty, float testx, float testy) { + int i, j, c = 0; + for (i = 0, j = nvert-1; i < nvert; j = i++) { + if ( ((verty[i]>testy) != (verty[j]>testy)) && + (testx < (vertx[j]-vertx[i]) * (testy-verty[i]) / (verty[j]-verty[i]) + vertx[i]) ) + c = !c; + } + return c; +} + +#endif // NEVER + +/* ------------------------------------ */ + +/* Circular disk/line primitive */ +struct _disk2d { + PRIM_STRUCT + double cx, cy; /* Center */ + color2d c; /* Color of disk/line */ + double orr, irr; /* Outer radius squared, inner radius squared (0.0 if disk) */ +}; typedef struct _disk2d disk2d; + +/* Center and radius */ +prim2d *new_disk2d(struct _render2d *s, double x, double y, double r, color2d c); + +/* Center, radius and line width */ +void add_circle2d(struct _render2d *s, double x, double y, double r, double w, color2d c); + +/* ------------------------------------ */ /* A single line. */ struct _line2d { @@ -137,6 +179,7 @@ struct _line2d { prim2d *new_line2d(struct _render2d *s, double x0, double y0, double x1, double y1, double w, int cap, color2d c); /* ------------------------------------ */ +/* Comound primitives */ /* add a dashed line */ void add_dashed_line2d( @@ -185,6 +228,54 @@ double h, /* Height of text in normal orientation */ int or /* Orintation, 0 = right, 1 = down, 2 = left, 3 = up */ ); + +/* Convert an angle in degrees (0 = right) */ +/* into transform matrix */ +void deg2mat(double mat[2][2], double a); + +/* Convert a vector into a rotation matrix */ +void vec2mat(double mat[2][2], double dx, double dy); + +/* Add a text character at the given location using lines */ +/* (matrix orientation version) */ +void add_char2dmat( +struct _render2d *s, +double *xinc, /* Return increment in position for next character */ +double *yinc, +font2d fo, /* Font to use */ +char ch, /* Character code to be printed */ +double x, double y, /* Location of bottom left of normal orientation text */ +double h, /* Height of text in normal orientation */ +double mat[2][2], /* Unity orientation matrix */ +color2d c /* Color of text */ +); + +/* Add a string from the given location using lines. */ +/* (matrix orientation version) */ +void add_string2dmat( +struct _render2d *s, +double *xinc, /* Return increment in position for next character */ +double *yinc, +font2d fo, /* Font to use */ +char *string, /* Character code to be printed */ +double x, double y, /* Location of bottom left of normal orientation text */ +double h, /* Height of text in normal orientation */ +double mat[2][2], /* Unity orientation matrix */ +color2d c /* Color of text */ +); + +/* Return the total width of the string without adding it */ +/* (matrix orientation version) */ +void meas_string2dmat( +struct _render2d *s, +double *xinc, /* Return increment in position for next character */ +double *yinc, +font2d fo, /* Font to use */ +char *string, /* Character code to be printed */ +double h, /* Height of text in normal orientation */ +double mat[2][2] /* Unity orientation matrix */ +); + /* ------------------------------------ */ /* Type of output to save to. */ @@ -214,6 +305,7 @@ struct _render2d { int dithfgo; /* Dither F.G. only flag */ void (*quant)(void *qcntx, double *out, double *in); /* optional quantization func. for edith */ void *qcntx; + double mxerr; /* Maximum error diffusion error */ color2d defc; /* Default color value */ @@ -256,7 +348,8 @@ render2d *new_render2d( int dither, /* Dither flag, 1 = ordered, 2 = error diffusion, | 0x8000 to dither FG only */ /* | 0x4000 don't anti-alias by averaging pixels together. */ void (*quant)(void *qcntx, double *out, double *in), /* optional quantization func. for edith */ - void *qcntx + void *qcntx, + double mxerr /* Maximum error diffusion error */ ); #endif /* RENDER2D_H */ |