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pagefault
2001-04-30 21:03:20 +00:00
parent cec6e35998
commit c37249f0ee
1 changed files with 0 additions and 91 deletions
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zsnes/src/win/zogl.c
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//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();
}