From dfd33a0a000d7f9fee3cb3dc75e3cdffd91e0b87 Mon Sep 17 00:00:00 2001
From: util1 <milan.garnier@orange.fr>
Date: Thu, 18 Jul 2019 20:29:34 +0200
Subject: [PATCH] ajout de la fonction bool FE_ZBuffer::setDist(int x, int y,
 int dist)

---
 FxEngine/zbuffer/zbuffer.cpp | 25 ++++++++++++++++++++++++-
 FxEngine/zbuffer/zbuffer.h   |  2 +-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/FxEngine/zbuffer/zbuffer.cpp b/FxEngine/zbuffer/zbuffer.cpp
index 1ba04bb..d691e8e 100644
--- a/FxEngine/zbuffer/zbuffer.cpp
+++ b/FxEngine/zbuffer/zbuffer.cpp
@@ -1,9 +1,32 @@
 #include "zbuffer.h"
 
 int FE_ZBuffer::m_sign=1;
-int* FE_ZBuffer::m_data=0;
+unsigned short* FE_ZBuffer::m_data=calloc(8192,sizeof(unsigned short));
 
 void FE_ZBuffer::clear()
 {
 	m_sign*=-1;
+	while (m_data==NULL)
+	{}
+	int* clearVal=(int*)m_data;
+	int indice=0;
+
+	// TODO ** ajouter le DMA pour les architectures sh4
+	for (indice=0; indice<4096; indice++)
+		clearVal[indice]=0;
+}
+
+bool FE_ZBuffer::setDist(int x, int y, int dist)
+{
+	short ndist=(short)dist;
+	x%=FE_ZB_SIZE_X;
+	y%=FE_ZB_SIZE_Y;
+	const int indice=x*y;
+	if (m_data[indice]=0 || m_data[indice]>ndist)
+	{
+		m_data[indice]=ndist;
+		return true;
+	}
+	else
+		return false;
 }
\ No newline at end of file
diff --git a/FxEngine/zbuffer/zbuffer.h b/FxEngine/zbuffer/zbuffer.h
index 153102b..bb22f60 100644
--- a/FxEngine/zbuffer/zbuffer.h
+++ b/FxEngine/zbuffer/zbuffer.h
@@ -11,7 +11,7 @@ public:
 	static void clear(); // does not really clear the zbuffer, but changes encoding sign for the next frame ** on 1st frame, allocates data
 	static bool setDist(int x, int y, int dist); // if you are allowed to draw the pixel on vram
 private:
-	static int* m_data;
+	static unsigned short* m_data;
 	static int m_sign;
 }