From 565c33151154ee4e0676111fdb06f264d9531464 Mon Sep 17 00:00:00 2001
From: pagefault <>
Date: Wed, 18 Apr 2001 21:15:44 +0000
Subject: [PATCH] *** empty log message ***

---
 zsnes/src/win/zogl.c | 91 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 zsnes/src/win/zogl.c

diff --git a/zsnes/src/win/zogl.c b/zsnes/src/win/zogl.c
new file mode 100644
index 00000000..0027ac10
--- /dev/null
+++ b/zsnes/src/win/zogl.c
@@ -0,0 +1,91 @@
+//Copyright (C) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
+//
+//This program is free software; you can redistribute it and/or
+//modify it under the terms of the GNU General Public License
+//as published by the Free Software Foundation; either
+//version 2 of the License, or (at your option) any later
+//version.
+//
+//This program is distributed in the hope that it will be useful,
+//but WITHOUT ANY WARRANTY; without even the implied warranty of
+//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//GNU General Public License for more details.
+//
+//You should have received a copy of the GNU General Public License
+//along with this program; if not, write to the Free Software
+//Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+#include <GL/gl.h>
+
+// Some code taken from DGen source
+
+// GL Textures
+static GLuint texture[2];
+
+// Video Buffers (one for each texture 256x256 and 64x256 = 320x256)
+static unsigned char oglbuffer1[256][256][4];
+static unsigned char oglbuffer2[256][64][4];
+
+static void maketex(int num, int size)
+{
+   glGenTextures(num,&texture[num-1]);
+   glBindTexture(GL_TEXTURE_2D,texture[num-1]);
+
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+
+   glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,size,256,0,GL_RGBA, GL_UNSIGNED_BYTE, oglbuffer);
+
+}
+
+void list()
+{
+  int i;
+
+  dlist=glGenLists(1);
+  glNewList(dlist,GL_COMPILE);
+
+  glEnable(GL_TEXTURE_2D);
+
+  glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+  // 256x256
+  glBindTexture(GL_TEXTURE_2D, texture[0]);
+
+  glBegin(GL_QUADS);
+    glTexCoord2f(0.0,1.0); glVertex2f(-1.0,-1.0); // upper left
+    glTexCoord2f(0.0,0.0); glVertex2f(-1.0,1.0); // lower left
+    glTexCoord2f(1.0,0.0); glVertex2f(tex_end,1.0); // lower right
+    glTexCoord2f(1.0,1.0); glVertex2f(tex_end,-1.0); // upper right
+  glEnd();
+
+  // 64x256
+  glBindTexture(GL_TEXTURE_2D, texture[1]);
+
+  glBegin(GL_QUADS);
+    glTexCoord2f(0.0, 1.0); glVertex2f(tex_end, -1.0); // upper left
+    glTexCoord2f(0.0, 0.0); glVertex2f(tex_end, 1.0); // lower left
+    glTexCoord2f(1.0, 0.0); glVertex2f(1.0, 1.0); // lower right
+    glTexCoord2f(1.0, 1.0); glVertex2f(1.0, -1.0); // upper right
+  glEnd();
+
+  glDisable(GL_TEXTURE_2D);
+
+  glEndList();
+}
+
+void update() {
+  int i,x,y;
+  int c,x2;
+
+  glBindTexture(GL_TEXTURE_2D, texture[0]);
+  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 15, 256, 224, GL_RGBA, GL_UNSIGNED_BYTE, oglbuffer1);
+
+  glBindTexture(GL_TEXTURE_2D, texture[1]);
+  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 15, 64, 224, GL_RGBA, GL_UNSIGNED_BYTE, oglbuffer2);
+
+  display();
+}
+