From 4a223f91b5bf3e7d370e528993b448ac38039e68 Mon Sep 17 00:00:00 2001
From: neauoire <aliceffekt@gmail.com>
Date: Mon, 27 Dec 2021 09:57:48 -0800
Subject: [PATCH] The screen is now a member of Ppu

---
 src/devices/ppu.c |  6 +++++-
 src/devices/ppu.h |  2 +-
 src/uxnemu.c      | 11 ++++-------
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/devices/ppu.c b/src/devices/ppu.c
index 9dae9d9..a7e8dbb 100644
--- a/src/devices/ppu.c
+++ b/src/devices/ppu.c
@@ -58,11 +58,15 @@ ppu_resize(Ppu *p, Uint16 width, Uint16 height)
 	Uint8
 		*bg = realloc(p->bg.pixels, width * height),
 		*fg = realloc(p->fg.pixels, width * height);
+	Uint32
+		*screen = realloc(p->screen, width * height * sizeof(Uint32));
 	if(bg) p->bg.pixels = bg;
 	if(fg) p->fg.pixels = fg;
-	if(bg && fg) {
+	if(screen) p->screen = screen;
+	if(bg && fg && screen) {
 		p->width = width;
 		p->height = height;
+		p->screen = screen;
 		ppu_clear(p, &p->bg);
 		ppu_clear(p, &p->fg);
 	}
diff --git a/src/devices/ppu.h b/src/devices/ppu.h
index 9e5f217..c2be17e 100644
--- a/src/devices/ppu.h
+++ b/src/devices/ppu.h
@@ -22,7 +22,7 @@ typedef struct Layer {
 } Layer;
 
 typedef struct Ppu {
-	Uint32 palette[4];
+	Uint32 palette[4], *screen;
 	Uint16 width, height;
 	Layer fg, bg;
 } Ppu;
diff --git a/src/uxnemu.c b/src/uxnemu.c
index 7802dfa..3da4dab 100644
--- a/src/uxnemu.c
+++ b/src/uxnemu.c
@@ -44,7 +44,7 @@ static Ppu ppu;
 static Apu apu[POLYPHONY];
 static Device *devsystem, *devscreen, *devmouse, *devctrl, *devaudio0, *devconsole;
 static Uint8 zoom = 1;
-static Uint32 *ppu_screen, stdin_event, audio0_event;
+static Uint32 stdin_event, audio0_event;
 
 static int
 clamp(int val, int min, int max)
@@ -118,15 +118,12 @@ set_size(Uint16 width, Uint16 height, int is_resize)
 	gRect.y = PAD;
 	gRect.w = ppu.width;
 	gRect.h = ppu.height;
-	if(!(ppu_screen = realloc(ppu_screen, ppu.width * ppu.height * sizeof(Uint32))))
-		return error("ppu_screen", "Memory failure");
-	memset(ppu_screen, 0, ppu.width * ppu.height * sizeof(Uint32));
 	if(gTexture != NULL) SDL_DestroyTexture(gTexture);
 	SDL_RenderSetLogicalSize(gRenderer, ppu.width + PAD * 2, ppu.height + PAD * 2);
 	gTexture = SDL_CreateTexture(gRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, ppu.width + PAD * 2, ppu.height + PAD * 2);
 	if(gTexture == NULL || SDL_SetTextureBlendMode(gTexture, SDL_BLENDMODE_NONE))
 		return error("gTexture", SDL_GetError());
-	if(SDL_UpdateTexture(gTexture, NULL, ppu_screen, sizeof(Uint32)) != 0)
+	if(SDL_UpdateTexture(gTexture, NULL, ppu.screen, sizeof(Uint32)) != 0)
 		return error("SDL_UpdateTexture", SDL_GetError());
 	if(is_resize)
 		set_window_size(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
@@ -155,8 +152,8 @@ redraw(Uxn *u)
 {
 	if(devsystem->dat[0xe])
 		ppu_debug(&ppu, u->wst.dat, u->wst.ptr, u->rst.ptr, u->ram.dat);
-	ppu_redraw(&ppu, ppu_screen);
-	if(SDL_UpdateTexture(gTexture, &gRect, ppu_screen, ppu.width * sizeof(Uint32)) != 0)
+	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);