Redraw is now part of the PPU

src/devices/ppu.c

@@ -75,6 +75,16 @@ ppu_clear(Ppu *p, Uint8 mask)
 		p->pixels[i] &= mask;
 }
 
+void
+ppu_redraw(Ppu *p, Uint32 *screen)
+{
+	Uint16 x, y;
+	for(y = 0; y < p->height; ++y)
+		for(x = 0; x < p->width; ++x)
+			screen[x + y * p->width] = p->palette[ppu_read(p, x, y)];
+	p->reqdraw = 0;
+}
+
 Uint8
 ppu_read(Ppu *p, Uint16 x, Uint16 y)
 {

src/devices/ppu.h

@@ -29,6 +29,7 @@ typedef struct Ppu {
 void ppu_palette(Ppu *p, Uint8 *addr);
 void ppu_resize(Ppu *p, Uint16 width, Uint16 height);
 void ppu_clear(Ppu *p, Uint8 layer);
+void ppu_redraw(Ppu *p, Uint32 *screen);
 Uint8 ppu_read(Ppu *p, Uint16 x, Uint16 y);
 void ppu_write(Ppu *p, Uint8 layer, Uint16 x, Uint16 y, Uint8 color);
 void ppu_1bpp(Ppu *p, Uint8 layer, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 color, Uint8 flipx, Uint8 flipy);

src/uxnemu.c

@@ -152,18 +152,14 @@ capture_screen(void)
 static void
 redraw(Uxn *u)
 {
-	Uint16 x, y;
 	if(devsystem->dat[0xe])
 		ppu_debug(&ppu, u->wst.dat, u->wst.ptr, u->rst.ptr, u->ram.dat);
-	for(y = 0; y < ppu.height; ++y)
-		for(x = 0; x < ppu.width; ++x)
-			ppu_screen[x + y * ppu.width] = ppu.palette[ppu_read(&ppu, x, y)];
+	ppu_redraw(&ppu, ppu_screen);
 	if(SDL_UpdateTexture(gTexture, &gRect, ppu_screen, ppu.width * sizeof(Uint32)) != 0)
 		error("SDL_UpdateTexture", SDL_GetError());
 	SDL_RenderClear(gRenderer);
 	SDL_RenderCopy(gRenderer, gTexture, NULL, NULL);
 	SDL_RenderPresent(gRenderer);
-	ppu.reqdraw = 0;
 }
 
 static void