/*
 *	File name	:	wmesa.c
 *  Version		:	2.0
 *
 *  Display driver for Mesa 2.0  under 
 *	Windows95, WindowsNT and Win32
 *
 *	Copyright (C) 1996-  Li Wei
 *  Address		:		Institute of Artificial Intelligence
 *				:			& Robotics
 *				:		Xi'an Jiaotong University
 *  Email		:		liwei@aiar.xjtu.edu.cn
 *  Web page	:		http://sun.aiar.xjtu.edu.cn
 *
 *  This file and its associations are partially based on the 
 *  Windows NT driver for Mesa, written by Mark Leaming
 *  (mark@rsinc.com).
 */
 
/*
 * $Log: wmesa.c,v $
 * Revision 2.0  1996/11/15 10:53:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
 * Initial revision
 *
 */

/*	NOTE: 
 *	This driver also support stereo feature and parallel feature
 *  If the above two features are desired, several other files
 *  are needed and the definition of macro
 *	NO_STEREO and
 *	NO_PARALLEL
 *	should be removed or commented
 */

#define NO_PARALLEL
#define NO_STEREO

#define WMESA_STEREO_C

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <wmesadef.h>

#include <GL\wmesa.h>
#include "context.h"
#include "dd.h"
#include "xform.h"
#include "vb.h"
#include "matrix.h"
#include "depth.h"

#ifdef PROFILE
	#include "profile.h"
#endif

#include <wing.h>


/*#include "mesa_extend.h"*/

#if !defined(NO_STEREO)
	
	#include "gl\glu.h"
	#include "stereo.h"
	
	PBYTE Buffer_Stereo;

	void WMesaCreateStereoBuffer(void);

	void WMesaInterleave( GLenum aView);

	void WMesaDestroyStereoBuffer(void);

	void WMesaShowStereo(GLuint list);
#endif
#if !defined(NO_PARALLEL)
	#include "parallel.h"
#endif

/* end of added code*/

/* Bit's used for dest: */
#define FRONT_PIXMAP	1
#define BACK_PIXMAP	2
#define BACK_XIMAGE	4

static PWMC Current = NULL;
WMesaContext WC = NULL;

#ifdef NDEBUG
  #define assert(ignore)	((void) 0)
#else
  void Mesa_Assert(void *Cond,void *File,unsigned Line)
  {
    char Msg[512];
    sprintf(Msg,"%s %s %d",Cond,File,Line);
    MessageBox(NULL,Msg,"Assertion failed.",MB_OK);
    exit(1);
  }
  #define assert(e)	if (!e) Mesa_Assert(#e,__FILE__,__LINE__);
#endif

#define DD_GETDC ((Current->db_flag) ? Current->dib.hDC : Current->hDC )
#define DD_RELEASEDC

//#define BEGINGDICALL	if(Current->rgb_flag)wmFlushBits(Current);
#define BEGINGDICALL
//#define ENDGDICALL		if(Current->rgb_flag)wmGetBits(Current);
#define ENDGDICALL

#define FLIP(Y)  (Current->height-(Y)-1)

#define STARTPROFILE 
#define ENDPROFILE(PARA) 


/**********************************************************************/
/*****                 Optimized triangle rendering               *****/
/**********************************************************************/


/*
 * Smooth-shaded, z-less triangle, RGBA color.
 */
static void smooth_color_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1,
                                     GLuint v2, GLuint pv )
{
UINT	nBypp = Current->cColorBits / 8;
GLbyte* img;
GLushort* img16;
GLuint *img24 ,*img32;
#define INTERP_Z 1
#define INTERP_RGB 1
#define INTERP_ALPHA 1
#define INNER_LOOP( LEFT, RIGHT, Y )							\
{																\
   GLint i, len = RIGHT-LEFT;									\
   img = PIXELADDR(LEFT,Y);   									\
   for (i=0;i<len;i++,img+=nBypp) {								\
      GLdepth z = FixedToDepth(ffz);							\
      if (z < zRow[i]) {										\
		 img16 = img24 = img32 = img;							\
		 if(nBypp == 2)											\
			*img16 = BGR16(	FixedToInt(ffr), FixedToInt(ffg),	\
							FixedToInt(ffb));					\
		 if(nBypp == 3)											\
			*img24 = BGR24(	FixedToInt(ffr), FixedToInt(ffg),	\
							FixedToInt(ffb));					\
   		 if(nBypp == 4)											\
			*img32 = BGR32(	FixedToInt(ffr), FixedToInt(ffg),	\
							FixedToInt(ffb));					\
         zRow[i] = z;											\
      }															\
      ffr += fdrdx;  ffg += fdgdx;  ffb += fdbdx;  ffa += fdadx;\
      ffz += fdzdx;												\
   }															\
}
	
	#include "tritemp.h"
 }