summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--clip.c20
-rw-r--r--internal.h6
-rw-r--r--render.c12
-rw-r--r--util.c20
-rw-r--r--vertex.c10
5 files changed, 13 insertions, 55 deletions
diff --git a/clip.c b/clip.c
index 94f84a6..aaa8754 100644
--- a/clip.c
+++ b/clip.c
@@ -34,16 +34,6 @@ addvert(Polygon *p, Vertex v)
}
static void
-swappoly(Polygon **a, Polygon **b)
-{
- Polygon *tmp;
-
- tmp = *a;
- *a = *b;
- *b = tmp;
-}
-
-static void
cleanpoly(Polygon *p)
{
int i;
@@ -128,7 +118,7 @@ allin:
}
cleanpoly(Vin);
if(j < 6-1)
- swappoly(&Vin, &Vout);
+ SWAP(Polygon*, &Vin, &Vout);
}
if(Vout->n < 2)
@@ -213,8 +203,6 @@ adjustverts(Point *p0, Point *p1, Vertex *v0, Vertex *v1)
perc = len == 0? 0: hypot(Δp.x, Δp.y)/len;
lerpvertex(&v[1], v0, v1, perc);
- delvattrs(v0);
- delvattrs(v1);
*v0 = dupvertex(&v[0]);
*v1 = dupvertex(&v[1]);
}
@@ -244,9 +232,9 @@ rectclipline(Rectangle r, Point *p0, Point *p1, Vertex *v0, Vertex *v1)
return -1;
if(ptisinside(code0)){
- swappt(p0, p1);
- swapi(&code0, &code1);
- swapvertex(v0, v1);
+ SWAP(Point, p0, p1);
+ SWAP(int, &code0, &code1);
+ SWAP(Vertex, v0, v1);
}
if(code0 & CLIPL){
diff --git a/internal.h b/internal.h
index 6cd512c..8b6784f 100644
--- a/internal.h
+++ b/internal.h
@@ -45,7 +45,6 @@ void rmfbctl(Framebufctl*);
/* vertex */
Vertex dupvertex(Vertex*);
-void swapvertex(Vertex*, Vertex*);
void lerpvertex(Vertex*, Vertex*, Vertex*, double);
void berpvertex(Vertex*, Vertex*, Vertex*, Vertex*, Point3);
void delvattrs(Vertex*);
@@ -58,8 +57,6 @@ int rectclipline(Rectangle, Point*, Point*, Vertex*, Vertex*);
/* util */
int min(int, int);
int max(int, int);
-void swapi(int*, int*);
-void swappt(Point*, Point*);
void memsetf(void*, float, usize);
void memsetl(void*, ulong, usize);
@@ -70,3 +67,6 @@ uvlong nanosec(void);
#define getpixel(fb, p) (((fb)->cb)[Dx((fb)->r)*(p).y + (p).x])
/* void putpixel(Framebuf *fb, Point p, ulong c) */
#define putpixel(fb, p, c) (((fb)->cb)[Dx((fb)->r)*(p).y + (p).x] = (c))
+
+/* void SWAP(type t, type *a, type *b) */
+#define SWAP(t, a, b) {t tmp; tmp = *(a); *(a) = *(b); *(b) = tmp;}
diff --git a/render.c b/render.c
index a28ed1b..41b0939 100644
--- a/render.c
+++ b/render.c
@@ -135,14 +135,14 @@ rasterize(Rastertask *task)
/* transpose the points */
if(abs(p0.x-p1.x) < abs(p0.y-p1.y)){
steep = 1;
- swapi(&p0.x, &p0.y);
- swapi(&p1.x, &p1.y);
+ SWAP(int, &p0.x, &p0.y);
+ SWAP(int, &p1.x, &p1.y);
}
/* make them left-to-right */
if(p0.x > p1.x){
- swappt(&p0, &p1);
- swapvertex(&prim.v[0], &prim.v[1]);
+ SWAP(Point, &p0, &p1);
+ SWAP(Vertex, &prim.v[0], &prim.v[1]);
}
dp = subpt(p1, p0);
@@ -155,7 +155,7 @@ rasterize(Rastertask *task)
dplen = hypot(dp.x, dp.y);
perc = dplen == 0? 0: hypot(Δp.x, Δp.y)/dplen;
- if(steep) swapi(&p.x, &p.y);
+ if(steep) SWAP(int, &p.x, &p.y);
z = flerp(prim.v[0].p.z, prim.v[1].p.z, perc);
/* TODO get rid of the bounds check and make sure the clipping doesn't overflow */
@@ -176,7 +176,7 @@ rasterize(Rastertask *task)
pixel(params->fb, p, c);
delvattrs(&fsp.v);
discard:
- if(steep) swapi(&p.x, &p.y);
+ if(steep) SWAP(int, &p.x, &p.y);
e += Δe;
if(e > dp.x){
diff --git a/util.c b/util.c
index 2ddf21c..b536147 100644
--- a/util.c
+++ b/util.c
@@ -32,26 +32,6 @@ fmax(double a, double b)
return a > b? a: b;
}
-void
-swapi(int *a, int *b)
-{
- int t;
-
- t = *a;
- *a = *b;
- *b = t;
-}
-
-void
-swappt(Point *a, Point *b)
-{
- Point t;
-
- t = *a;
- *a = *b;
- *b = t;
-}
-
Point2
modulapt2(Point2 a, Point2 b)
{
diff --git a/vertex.c b/vertex.c
index 92c6b0a..970bbbc 100644
--- a/vertex.c
+++ b/vertex.c
@@ -43,16 +43,6 @@ dupvertex(Vertex *v)
return nv;
}
-void
-swapvertex(Vertex *a, Vertex *b)
-{
- Vertex t;
-
- t = *a;
- *a = *b;
- *b = t;
-}
-
/*
* linear attribute interpolation
*/