From 2ac26a1f9e8445d1de7ce90953b871227bd17872 Mon Sep 17 00:00:00 2001
From: milang <milan.garnier@orange.fr>
Date: Thu, 29 Aug 2019 09:51:19 +0200
Subject: [PATCH] add clear with dma

---
 src/render/zbuffer.c | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/src/render/zbuffer.c b/src/render/zbuffer.c
index cfd6fab..4b9e4eb 100644
--- a/src/render/zbuffer.c
+++ b/src/render/zbuffer.c
@@ -2,6 +2,7 @@
 #include <fxengine/render/parameters.h>
 
 #include <stdbool.h>
+#include <stdint.h>
 #include <gint/display.h>
 #include <gint/std/stdio.h>
 #include <gint/std/stdlib.h>
@@ -18,25 +19,31 @@ static const int size_char = size_uint32 * sizeof(uint32_t);
 
 static int32_t *zbuffer = (void *)0x88080000 - ((size_char / 32) * 32 + 1);
 
-GALIGNED(32) GSECTION(".rodata") static const int32_t clearval[8]={render_max_dist,render_max_dist,render_max_dist,render_max_dist,render_max_dist,render_max_dist,render_max_dist,render_max_dist}; 
+
+// gint doesn't provide any prototype for that function which is implemented
+extern void dma_memset(void *dst, uint32_t l, size_t size);
 
 void render_zbuffer_clear()
 {
-	uint32_t indice = 0;
+    uint32_t indice = 0;
+
+    if (isSH3())
+        for (indice = 0; indice < size_uint32; indice ++)
+            zbuffer[indice] = render_max_dist;
+    else
+        dma_memset(zbuffer, render_max_dist, size_char);
 
-	for (indice = 0; indice < size_uint32; indice ++)
-		zbuffer[indice] = render_max_dist;
 }
 
 bool render_zbuffer_set_px(uint32_t x, uint32_t y, uint32_t dist)
 {
-	const int indice = x * render_height + y;
-	
-	if (zbuffer[indice]>dist && dist>=render_min_dist && dist<=render_max_dist)
-	{
-		zbuffer[indice] = dist;
-		return true;
-	}
-	
-	return false;
+    const int indice = x * render_height + y;
+    
+    if (zbuffer[indice]>dist && dist>=render_min_dist && dist<=render_max_dist)
+    {
+        zbuffer[indice] = dist;
+        return true;
+    }
+    
+    return false;
 }
\ No newline at end of file