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Diffstat (limited to 'draw/draw_edge.c')
-rw-r--r--draw/draw_edge.c92
1 files changed, 46 insertions, 46 deletions
diff --git a/draw/draw_edge.c b/draw/draw_edge.c
index aa956077..9e916555 100644
--- a/draw/draw_edge.c
+++ b/draw/draw_edge.c
@@ -20,7 +20,7 @@ enum { HSCALE = 17, VSCALE = 15, SF = 1 };
*/
fz_gel *
-fz_newgel(void)
+fz_new_gel(void)
{
fz_gel *gel;
@@ -39,9 +39,9 @@ fz_newgel(void)
}
void
-fz_resetgel(fz_gel *gel, fz_bbox clip)
+fz_reset_gel(fz_gel *gel, fz_bbox clip)
{
- if (fz_isinfiniterect(clip))
+ if (fz_is_infinite_rect(clip))
{
gel->clip.x0 = gel->clip.y0 = BBOX_MAX;
gel->clip.x1 = gel->clip.y1 = BBOX_MIN;
@@ -60,18 +60,18 @@ fz_resetgel(fz_gel *gel, fz_bbox clip)
}
void
-fz_freegel(fz_gel *gel)
+fz_free_gel(fz_gel *gel)
{
fz_free(gel->edges);
fz_free(gel);
}
fz_bbox
-fz_boundgel(fz_gel *gel)
+fz_bound_gel(fz_gel *gel)
{
fz_bbox bbox;
if (gel->len == 0)
- return fz_emptybbox;
+ return fz_empty_bbox;
bbox.x0 = fz_idiv(gel->bbox.x0, HSCALE);
bbox.y0 = fz_idiv(gel->bbox.y0, VSCALE);
bbox.x1 = fz_idiv(gel->bbox.x1, HSCALE) + 1;
@@ -81,10 +81,10 @@ fz_boundgel(fz_gel *gel)
enum { INSIDE, OUTSIDE, LEAVE, ENTER };
-#define cliplerpy(v,m,x0,y0,x1,y1,t) cliplerpx(v,m,y0,x0,y1,x1,t)
+#define clip_lerp_y(v,m,x0,y0,x1,y1,t) clip_lerp_x(v,m,y0,x0,y1,x1,t)
static int
-cliplerpx(int val, int m, int x0, int y0, int x1, int y1, int *out)
+clip_lerp_x(int val, int m, int x0, int y0, int x1, int y1, int *out)
{
int v0out = m ? x0 > val : x0 < val;
int v1out = m ? x1 > val : x1 < val;
@@ -109,7 +109,7 @@ cliplerpx(int val, int m, int x0, int y0, int x1, int y1, int *out)
}
static void
-fz_insertgelraw(fz_gel *gel, int x0, int y0, int x1, int y1)
+fz_insert_gel_raw(fz_gel *gel, int x0, int y0, int x1, int y1)
{
fz_edge *edge;
int dx, dy;
@@ -152,7 +152,7 @@ fz_insertgelraw(fz_gel *gel, int x0, int y0, int x1, int y1)
edge->x = x0;
edge->y = y0;
edge->h = dy;
- edge->adjdown = dy;
+ edge->adj_down = dy;
/* initial error term going l->r and r->l */
if (dx >= 0)
@@ -163,18 +163,18 @@ fz_insertgelraw(fz_gel *gel, int x0, int y0, int x1, int y1)
/* y-major edge */
if (dy >= width) {
edge->xmove = 0;
- edge->adjup = width;
+ edge->adj_up = width;
}
/* x-major edge */
else {
edge->xmove = (width / dy) * edge->xdir;
- edge->adjup = width % dy;
+ edge->adj_up = width % dy;
}
}
void
-fz_insertgel(fz_gel *gel, float fx0, float fy0, float fx1, float fy1)
+fz_insert_gel(fz_gel *gel, float fx0, float fy0, float fx1, float fy1)
{
int x0, y0, x1, y1;
int d, v;
@@ -189,51 +189,51 @@ fz_insertgel(fz_gel *gel, float fx0, float fy0, float fx1, float fy1)
x1 = CLAMP(fx1, BBOX_MIN, BBOX_MAX);
y1 = CLAMP(fy1, BBOX_MIN, BBOX_MAX);
- d = cliplerpy(gel->clip.y0, 0, x0, y0, x1, y1, &v);
+ d = clip_lerp_y(gel->clip.y0, 0, x0, y0, x1, y1, &v);
if (d == OUTSIDE) return;
if (d == LEAVE) { y1 = gel->clip.y0; x1 = v; }
if (d == ENTER) { y0 = gel->clip.y0; x0 = v; }
- d = cliplerpy(gel->clip.y1, 1, x0, y0, x1, y1, &v);
+ d = clip_lerp_y(gel->clip.y1, 1, x0, y0, x1, y1, &v);
if (d == OUTSIDE) return;
if (d == LEAVE) { y1 = gel->clip.y1; x1 = v; }
if (d == ENTER) { y0 = gel->clip.y1; x0 = v; }
- d = cliplerpx(gel->clip.x0, 0, x0, y0, x1, y1, &v);
+ d = clip_lerp_x(gel->clip.x0, 0, x0, y0, x1, y1, &v);
if (d == OUTSIDE) {
x0 = x1 = gel->clip.x0;
}
if (d == LEAVE) {
- fz_insertgelraw(gel, gel->clip.x0, v, gel->clip.x0, y1);
+ fz_insert_gel_raw(gel, gel->clip.x0, v, gel->clip.x0, y1);
x1 = gel->clip.x0;
y1 = v;
}
if (d == ENTER) {
- fz_insertgelraw(gel, gel->clip.x0, y0, gel->clip.x0, v);
+ fz_insert_gel_raw(gel, gel->clip.x0, y0, gel->clip.x0, v);
x0 = gel->clip.x0;
y0 = v;
}
- d = cliplerpx(gel->clip.x1, 1, x0, y0, x1, y1, &v);
+ d = clip_lerp_x(gel->clip.x1, 1, x0, y0, x1, y1, &v);
if (d == OUTSIDE) {
x0 = x1 = gel->clip.x1;
}
if (d == LEAVE) {
- fz_insertgelraw(gel, gel->clip.x1, v, gel->clip.x1, y1);
+ fz_insert_gel_raw(gel, gel->clip.x1, v, gel->clip.x1, y1);
x1 = gel->clip.x1;
y1 = v;
}
if (d == ENTER) {
- fz_insertgelraw(gel, gel->clip.x1, y0, gel->clip.x1, v);
+ fz_insert_gel_raw(gel, gel->clip.x1, y0, gel->clip.x1, v);
x0 = gel->clip.x1;
y0 = v;
}
- fz_insertgelraw(gel, x0, y0, x1, y1);
+ fz_insert_gel_raw(gel, x0, y0, x1, y1);
}
void
-fz_sortgel(fz_gel *gel)
+fz_sort_gel(fz_gel *gel)
{
fz_edge *a = gel->edges;
int n = gel->len;
@@ -270,7 +270,7 @@ fz_sortgel(fz_gel *gel)
}
int
-fz_isrectgel(fz_gel *gel)
+fz_is_rect_gel(fz_gel *gel)
{
/* a rectangular path is converted into two vertical edges of identical height */
if (gel->len == 2)
@@ -278,8 +278,8 @@ fz_isrectgel(fz_gel *gel)
fz_edge *a = gel->edges + 0;
fz_edge *b = gel->edges + 1;
return a->y == b->y && a->h == b->h &&
- a->xmove == 0 && a->adjup == 0 &&
- b->xmove == 0 && b->adjup == 0;
+ a->xmove == 0 && a->adj_up == 0 &&
+ b->xmove == 0 && b->adj_up == 0;
}
return 0;
}
@@ -289,7 +289,7 @@ fz_isrectgel(fz_gel *gel)
*/
fz_ael *
-fz_newael(void)
+fz_new_ael(void)
{
fz_ael *ael;
ael = fz_malloc(sizeof(fz_ael));
@@ -300,14 +300,14 @@ fz_newael(void)
}
void
-fz_freeael(fz_ael *ael)
+fz_free_ael(fz_ael *ael)
{
fz_free(ael->edges);
fz_free(ael);
}
static inline void
-sortael(fz_edge **a, int n)
+sort_ael(fz_edge **a, int n)
{
int h, i, k;
fz_edge *t;
@@ -340,7 +340,7 @@ sortael(fz_edge **a, int n)
}
static fz_error
-insertael(fz_ael *ael, fz_gel *gel, int y, int *e)
+insert_ael(fz_ael *ael, fz_gel *gel, int y, int *e)
{
/* insert edges that start here */
while (*e < gel->len && gel->edges[*e].y == y) {
@@ -354,13 +354,13 @@ insertael(fz_ael *ael, fz_gel *gel, int y, int *e)
}
/* shell-sort the edges by increasing x */
- sortael(ael->edges, ael->len);
+ sort_ael(ael->edges, ael->len);
return fz_okay;
}
static void
-advanceael(fz_ael *ael)
+advance_ael(fz_ael *ael)
{
fz_edge *edge;
int i = 0;
@@ -378,10 +378,10 @@ advanceael(fz_ael *ael)
else {
edge->x += edge->xmove;
- edge->e += edge->adjup;
+ edge->e += edge->adj_up;
if (edge->e > 0) {
edge->x += edge->xdir;
- edge->e -= edge->adjdown;
+ edge->e -= edge->adj_down;
}
i ++;
}
@@ -393,7 +393,7 @@ advanceael(fz_ael *ael)
*/
static inline void
-addspan(unsigned char *list, int x0, int x1, int xofs)
+add_span(unsigned char *list, int x0, int x1, int xofs)
{
int x0pix, x0sub;
int x1pix, x1sub;
@@ -426,7 +426,7 @@ addspan(unsigned char *list, int x0, int x1, int xofs)
}
static inline void
-nonzerowinding(fz_ael *ael, unsigned char *list, int xofs)
+non_zero_winding(fz_ael *ael, unsigned char *list, int xofs)
{
int winding = 0;
int x = 0;
@@ -436,13 +436,13 @@ nonzerowinding(fz_ael *ael, unsigned char *list, int xofs)
if (!winding && (winding + ael->edges[i]->ydir))
x = ael->edges[i]->x;
if (winding && !(winding + ael->edges[i]->ydir))
- addspan(list, x, ael->edges[i]->x, xofs);
+ add_span(list, x, ael->edges[i]->x, xofs);
winding += ael->edges[i]->ydir;
}
}
static inline void
-evenodd(fz_ael *ael, unsigned char *list, int xofs)
+even_odd(fz_ael *ael, unsigned char *list, int xofs)
{
int even = 0;
int x = 0;
@@ -452,7 +452,7 @@ evenodd(fz_ael *ael, unsigned char *list, int xofs)
if (!even)
x = ael->edges[i]->x;
else
- addspan(list, x, ael->edges[i]->x, xofs);
+ add_span(list, x, ael->edges[i]->x, xofs);
even = !even;
}
}
@@ -476,13 +476,13 @@ blit(fz_pixmap *dest, int x, int y, unsigned char *mp, int w, unsigned char *col
dp = dest->samples + ( (y - dest->y) * dest->w + (x - dest->x) ) * dest->n;
if (color)
- fz_paintspancolor(dp, mp, dest->n, w, color);
+ fz_paint_span_with_color(dp, mp, dest->n, w, color);
else
- fz_paintspan(dp, mp, 1, w, 255);
+ fz_paint_span(dp, mp, 1, w, 255);
}
fz_error
-fz_scanconvert(fz_gel *gel, fz_ael *ael, int eofill, fz_bbox clip,
+fz_scan_convert(fz_gel *gel, fz_ael *ael, int eofill, fz_bbox clip,
fz_pixmap *dest, unsigned char *color)
{
fz_error error;
@@ -526,7 +526,7 @@ fz_scanconvert(fz_gel *gel, fz_ael *ael, int eofill, fz_bbox clip,
}
yd = yc;
- error = insertael(ael, gel, y, &e);
+ error = insert_ael(ael, gel, y, &e);
if (error) {
fz_free(deltas);
return error;
@@ -535,12 +535,12 @@ fz_scanconvert(fz_gel *gel, fz_ael *ael, int eofill, fz_bbox clip,
if (yd >= clip.y0 && yd < clip.y1)
{
if (eofill)
- evenodd(ael, deltas, xofs);
+ even_odd(ael, deltas, xofs);
else
- nonzerowinding(ael, deltas, xofs);
+ non_zero_winding(ael, deltas, xofs);
}
- advanceael(ael);
+ advance_ael(ael);
if (ael->len > 0)
y ++;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 18:18:52 +0000