From a185be7095b1575c32911d18341f3f99ed686ae5 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sat, 13 Aug 2011 00:52:11 +0300
Subject: [PATCH] frontend: split 4:3 scaling options

one for integer scaling, another for aspect scaling.
---
 frontend/menu.c       | 64 ++++++++++++++++++++++++++++++-------------
 frontend/plugin_lib.c |  6 ++++
 2 files changed, 51 insertions(+), 19 deletions(-)

diff --git a/frontend/menu.c b/frontend/menu.c
index 2f734464..69bcd591 100644
--- a/frontend/menu.c
+++ b/frontend/menu.c
@@ -65,6 +65,7 @@ typedef enum
 enum {
 	SCALE_1_1,
 	SCALE_4_3,
+	SCALE_4_3v2,
 	SCALE_FULLSCREEN,
 	SCALE_CUSTOM,
 };
@@ -231,7 +232,7 @@ static const struct {
 	CE_CONFIG_VAL(Cpu),
 	CE_CONFIG_VAL(CdrReschedule),
 	CE_INTVAL(region),
-	CE_INTVAL(scaling),
+	CE_INTVAL_V(scaling, 2),
 	CE_INTVAL(g_layer_x),
 	CE_INTVAL(g_layer_y),
 	CE_INTVAL(g_layer_w),
@@ -1003,7 +1004,7 @@ static int menu_loop_keyconfig(int id, int keys)
 
 // ------------ gfx options menu ------------
 
-static const char *men_scaler[] = { "1x1", "scaled 4:3", "fullscreen", "custom", NULL };
+static const char *men_scaler[] = { "1x1", "scaled 4:3", "integer scaled 4:3", "fullscreen", "custom", NULL };
 static const char h_cscaler[]   = "Displays the scaler layer, you can resize it\n"
 				  "using d-pad or move it using R+d-pad";
 static const char *men_dummy[] = { NULL };
@@ -1957,14 +1958,53 @@ void menu_init(void)
 
 void menu_notify_mode_change(int w, int h, int bpp)
 {
+	float mult;
+	int imult;
+
 	last_psx_w = w;
 	last_psx_h = h;
 	last_psx_bpp = bpp;
 
-	if (scaling == SCALE_1_1) {
-		g_layer_x = 800/2 - w/2;  g_layer_y = 480/2 - h/2;
+	switch (scaling) {
+	case SCALE_1_1:
 		g_layer_w = w; g_layer_h = h;
+		break;
+
+	case SCALE_4_3:
+		mult = 240.0f / (float)h * 4.0f / 3.0f;
+		if (h > 256)
+			mult *= 2.0f;
+		g_layer_w = mult * (float)g_menuscreen_h;
+		g_layer_h = g_menuscreen_h;
+		printf("  -> %dx%d %.1f\n", g_layer_w, g_layer_h, mult);
+		break;
+
+	case SCALE_4_3v2:
+		// 4:3 that prefers integer scaling
+		imult = g_menuscreen_h / h;
+		g_layer_w = w * imult;
+		g_layer_h = h * imult;
+		mult = (float)g_layer_w / (float)g_layer_h;
+		if (mult < 1.25f || mult > 1.666f)
+			g_layer_w = 4.0f/3.0f * (float)g_layer_h;
+		printf("  -> %dx%d %.1f\n", g_layer_w, g_layer_h, mult);
+		break;
+
+	case SCALE_FULLSCREEN:
+		g_layer_w = g_menuscreen_w;
+		g_layer_h = g_menuscreen_h;
+		break;
+
+	default:
+		break;
 	}
+
+	g_layer_x = g_menuscreen_w / 2 - g_layer_w / 2;
+	g_layer_y = g_menuscreen_h / 2 - g_layer_h / 2;
+	if (g_layer_x < 0) g_layer_x = 0;
+	if (g_layer_y < 0) g_layer_y = 0;
+	if (g_layer_w > g_menuscreen_w) g_layer_w = g_menuscreen_w;
+	if (g_layer_h > g_menuscreen_h) g_layer_w = g_menuscreen_h;
 }
 
 static void menu_leave_emu(void)
@@ -2000,21 +2040,7 @@ void menu_prepare_emu(void)
 
 	plat_video_menu_leave();
 
-	switch (scaling) {
-	case SCALE_1_1:
-		menu_notify_mode_change(last_psx_w, last_psx_h, last_psx_bpp);
-		break;
-	case SCALE_4_3:
-		g_layer_x = 80;  g_layer_y = 0;
-		g_layer_w = 640; g_layer_h = 480;
-		break;
-	case SCALE_FULLSCREEN:
-		g_layer_x = 0;   g_layer_y = 0;
-		g_layer_w = 800; g_layer_h = 480;
-		break;
-	case SCALE_CUSTOM:
-		break;
-	}
+	menu_notify_mode_change(last_psx_w, last_psx_h, last_psx_bpp);
 
 	psxCpu = (Config.Cpu == CPU_INTERPRETER) ? &psxInt : &psxRec;
 	if (psxCpu != prev_cpu)
diff --git a/frontend/plugin_lib.c b/frontend/plugin_lib.c
index da25c6e1..0a49872c 100644
--- a/frontend/plugin_lib.c
+++ b/frontend/plugin_lib.c
@@ -109,6 +109,9 @@ static __attribute__((noinline)) void draw_active_chans(void)
 
 static void *pl_vout_set_mode(int w, int h, int bpp)
 {
+	// special h handling, Wipeout likes to change it by 1-6
+	h = (h + 7) & ~7;
+
 	if (w == pl_vout_w && h == pl_vout_h && bpp == pl_vout_bpp)
 		return pl_vout_buf;
 
@@ -126,7 +129,10 @@ static void *pl_vout_set_mode(int w, int h, int bpp)
 
 	if (pl_vout_buf == NULL)
 		fprintf(stderr, "failed to set mode\n");
+
+	// menu decides on layer size, we commit it
 	menu_notify_mode_change(w, h, bpp);
+	omap_enable_layer(1);
 
 	return pl_vout_buf;
 }
-- 
2.39.2