1 files changed, 30 insertions(+), 26 deletions(-)

M chr6.c

@@ 61,6 61,8 @@ inspt(Point* p, int w, int h)
 	return p->x >= 0 && p->y >= 0 && p->x < w && p->y < h;
 }
 
+/* Draw */
+
 void
 pixel(uint32_t* dst, Point p, int c)
 {


@@ 87,7 89,7 @@ draw(uint32_t* dst, int id, int color)
 }
 
 void
-redraw(void)
+redraw(uint32_t* dst)
 {
 	int b, i, j, id = 0, ch1, ch2, color;
 	for(b = 0; b < 4096; b += 16)


@@ 96,15 98,17 @@ redraw(void)
 				ch1 = buffer[b + i];
 				ch2 = buffer[b + i + 8];
 				color = ((ch1 >> j) & 0x1) + (((ch2 >> j) & 0x1) << 1);
-				draw(pixels, id, color);
+				draw(dst, id, color);
 				id++;
 			}
-	SDL_UpdateTexture(gTexture, NULL, pixels, WIDTH * sizeof(uint32_t));
+	SDL_UpdateTexture(gTexture, NULL, dst, WIDTH * sizeof(uint32_t));
 	SDL_RenderClear(gRenderer);
 	SDL_RenderCopy(gRenderer, gTexture, NULL, NULL);
 	SDL_RenderPresent(gRenderer);
 }
 
+/* Chr */
+
 void
 write(int tx, int ty, int px, int py, int color)
 {


@@ 128,35 132,35 @@ write(int tx, int ty, int px, int py, int color)
 }
 
 void
-edit(Point* p, int color)
+edit(int x, int y, int color)
 {
-	Point p1;
-	setpt(&p1, p->x - PAD, p->y - PAD);
-	if(!inspt(&p1, 8 * HOR * ZOOM, 8 * VER * ZOOM))
+	if(x < 0 || y < 0 || x > 8 * HOR * ZOOM || y > 8 * VER * ZOOM)
 		return;
 	write(
-	    p1.x / (8 * ZOOM),
-	    p1.y / (8 * ZOOM),
-	    (p1.x / ZOOM) % 8,
-	    (p1.y / ZOOM) % 8,
+	    x / (8 * ZOOM),
+	    y / (8 * ZOOM),
+	    (x / ZOOM) % 8,
+	    (y / ZOOM) % 8,
 	    color);
 }
 
+/* Brush */
+
 int
-patt(int mode, int size, Point p)
+patt(int x, int y, int mode, int size)
 {
 	if(mode == 1)
-		return ((p.x + p.y) % 4) == 0 && ((p.y - p.x) % 4) == 0;
+		return ((x + y) % 4) == 0 && ((y - x) % 4) == 0;
 	if(mode == 2)
-		return ((p.x + p.y) % 2) == 0 && ((p.y - p.x) % 2) == 0;
+		return ((x + y) % 2) == 0 && ((y - x) % 2) == 0;
 	if(mode == 3)
 		return 1;
 	if(mode == 4)
-		return p.y % size == 0;
+		return y % size == 0;
 	if(mode == 5)
-		return p.x % size == 0;
+		return x % size == 0;
 	if(mode == 6)
-		return (p.x + p.y) % size == 0 || (p.x - p.y) % size == 0;
+		return (x + y) % size == 0 || (x - y) % size == 0;
 	return 0;
 }
 


@@ 168,11 172,11 @@ fill(Brush* b, int mode, int size, Point p0, int color)
 	for(x = -size / 2; x < size; ++x)
 		for(y = -size / 2; y < size; ++y) {
 			setpt(&p, p0.x + x, p0.y + y);
-			if(patt(mode, size, p))
-				edit(&p, color);
+			if(patt(p.x, p.y, mode, size))
+				edit(p.x - PAD, p.y - PAD, color);
 		}
 	b->edit = 1;
-	redraw();
+	redraw(pixels);
 }
 
 void


@@ 182,7 186,7 @@ line(Point* p0, Point* p1, int color)
 	double dy = -abs(p1->y - p0->y), sy = p0->y < p1->y ? 1 : -1;
 	double err = dx + dy, e2;
 	for(;;) {
-		edit(p0, color);
+		edit(p0->x - PAD, p0->y - PAD, color);
 		if(p0->x == p1->x && p0->y == p1->y)
 			break;
 		e2 = 2 * err;


@@ 195,7 199,7 @@ line(Point* p0, Point* p1, int color)
 			p0->y += sy;
 		}
 	}
-	redraw();
+	redraw(pixels);
 }
 
 void


@@ 212,7 216,7 @@ erase(Brush* b)
 		buffer[(id * 16) + i + 8] = 0x00;
 	}
 	b->edit = 1;
-	redraw();
+	redraw(pixels);
 }
 
 void


@@ 236,7 240,7 @@ create(void)
 	int i;
 	for(i = 0; i < 4096; ++i)
 		buffer[i] = 0x00;
-	redraw();
+	redraw(pixels);
 }
 
 void


@@ 259,7 263,7 @@ load(char* path)
 	if(!fread(buffer, sizeof(buffer), 1, f))
 		error("Load", "Invalid file size");
 	fclose(f);
-	redraw();
+	redraw(pixels);
 }
 
 void


@@ 334,7 338,7 @@ dokey(SDL_Event* event, Brush* b)
 		break;
 	case SDLK_h:
 		GUIDES = !GUIDES;
-		redraw();
+		redraw(pixels);
 		break;
 	case SDLK_1:
 		b->mode = 0;