/**************************************************************************
 *                                                                        *
 *               Copyright (C) 1995, Silicon Graphics, Inc.               *
 *                                                                        *
 *  These coded instructions, statements, and computer programs  contain  *
 *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
 *  are protected by Federal copyright  law.  They  may not be disclosed  *
 *  to  third  parties  or copied or duplicated in any form, in whole or  *
 *  in part, without the prior written consent of Silicon Graphics, Inc.  *
 *                                                                        *
 *************************************************************************/

/*
 * File:	init.c
 * Creator:	hal@sgi.com
 * Create Date:	Tue Sep 26 14:01:01 PDT 1995
 * Purpose:	Declarations & definitions to be placed in the static segment.
 *
 * This file holds tiny display list segments that are 'static' data.
 *
 */

#include <ultra64.h>
#include "dldriver.h"
#include "gng.h"

/*
 * Remember, viewport structures have 2 bits of fraction in them.
 */
static Vp vp = {
	SCREEN_WD*2, SCREEN_HT*2, G_MAXZ/2, 0,	/* scale */
	SCREEN_WD*2, SCREEN_HT*2, G_MAXZ/2, 0,	/* translate */
};

Vp regression_viewport_d = {
	SCREEN_WD/2, SCREEN_HT/2, G_MAXZ/2, 0,	/* scale */
	SCREEN_WD/2, SCREEN_HT/2, G_MAXZ/2, 0,	/* translate */
};

Vp bigscreen_viewport_d = {
	1024*2, 1024*2, G_MAXZ/2, 0,	/* scale */
	1024*2, 1024*2, G_MAXZ/2, 0,	/* translate */
};

Gfx rspinit_dl[] = {
    gsSPViewport(&vp),
    gsSPClearGeometryMode(0xffffffff),
    gsSPSetGeometryMode(G_SHADE | G_SHADING_SMOOTH),
    gsSPEndDisplayList(),
};

Gfx rdpinit_dl[] = {
    gsDPPipeSync(),
    /*
    gsDPSetScissor(G_SC_NON_INTERLACE, 0, 0, SCREEN_WD, SCREEN_HT),
    specify scissor region so that it does not intersect rectangle
    */
    gsDPSetScissor(G_SC_NON_INTERLACE, 0, 0, 2*SCREEN_WD, 2*SCREEN_HT),
    gsDPSetCombineMode(G_CC_SHADE, G_CC_SHADE),
    gsDPSetCycleType(G_CYC_1CYCLE),
    gsDPSetTextureLOD(G_TL_TILE),
    gsDPSetTextureLUT(G_TT_NONE),
    gsDPSetTextureDetail(G_TD_CLAMP),
    gsDPSetTexturePersp(G_TP_NONE),
    gsDPSetTextureFilter(G_TF_BILERP),
    gsDPSetTextureConvert(G_TC_FILT),
    gsDPSetCombineKey(G_CK_NONE),
    gsDPSetAlphaCompare(G_AC_NONE),
    gsDPSetRenderMode(G_RM_OPA_SURF, G_RM_OPA_SURF2),
    gsDPSetBlendMask(0xff),
    gsDPSetColorDither(G_CD_DISABLE),
    gsDPSetDepthImage(APP_ZBUFFER),
    gsDPPipeSync(),
    gsSPEndDisplayList(),
};

/*
 * Clear the z buffer independently from the color frame buffer.
 */
Gfx clear_16fb_z[] = {
    /*
     * Clear zbuffer.
     */
    gsDPPipeSync(),
    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage(G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WD, APP_ZBUFFER),
    gsDPSetFillColor(GPACK_ZDZ(G_MAXFBZ, 0) << 16 | GPACK_ZDZ(G_MAXFBZ, 0)),
    gsDPPipeSync(),
    gsDPFillRectangle(0, 0, SCREEN_WD-1, SCREEN_HT-1),
    gsDPPipeSync(),
    gsSPEndDisplayList(),
};

/*
 * Always clears the first frame buffer.  This is okay, since we only want to
 * render to the first frame buffer.
 */
Gfx clear_16fb[] = {

    /*
     * clear color, cvg = FULL or 1
     */

    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage( G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WD, 
	OS_K0_TO_PHYSICAL(cfb_16_a) ),
    gsDPSetFillColor(GPACK_RGBA5551(0,200,200,1) << 16 | GPACK_RGBA5551(0,200,200,1)), 

    gsDPFillRectangle(0, 0, SCREEN_WD-1, SCREEN_HT-1),
    gsDPNoOp(), 
    gsDPSetCycleType(G_CYC_1CYCLE),

    gsSPEndDisplayList(),
};

Gfx clear_32fb_z[] = {

    /*
     * Clear zbuffer first
     */
    gsDPPipeSync(),
    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage(G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WD, APP_ZBUFFER),
    gsDPSetFillColor(GPACK_ZDZ(G_MAXFBZ, 0) << 16 | GPACK_ZDZ(G_MAXFBZ, 0)),
    gsDPPipeSync(),
    gsDPFillRectangle(0, 0, SCREEN_WD-1, SCREEN_HT-1),
    gsDPPipeSync(),
    gsSPEndDisplayList(),
};

Gfx clear_32fb[] = {
    /*
     * clear color, cvg = FULL or 1
     */

    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage( G_IM_FMT_RGBA, G_IM_SIZ_32b, SCREEN_WD,
	    OS_K0_TO_PHYSICAL(cfb_16_a) ),
    gsDPSetFillColor((0<<24) | (200<<16) | (200 << 8) | 0xff),  
    gsDPFillRectangle(0, 0, SCREEN_WD-1, SCREEN_HT-1),
    gsDPPipeSync(),
    gsDPSetCycleType(G_CYC_1CYCLE),
    gsSPEndDisplayList(),
};

/*
 * Allow only a 16-bit type for a  1024  wide framebuffer
 */

Gfx clear_1024fb_z[] = {
    /*
     * Clear zbuffer.
     */
    gsDPPipeSync(),
    gsDPSetScissor(G_SC_NON_INTERLACE, 0, 0, 1023, 255),
    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage(G_IM_FMT_RGBA, G_IM_SIZ_16b, 1024, APP_ZBUFFER),
    gsDPSetFillColor(GPACK_ZDZ(G_MAXFBZ, 0) << 16 | GPACK_ZDZ(G_MAXFBZ, 0)),
    gsDPPipeSync(),
    gsDPFillRectangle(0, 0, 1023, 255),
    gsDPPipeSync(),
    gsSPEndDisplayList(),
};

/*
 * Always clears the first frame buffer.  This is okay, since we only want to
 * render to the first frame buffer.
 */
Gfx clear_1024fb[] = {

    /*
     * clear color, cvg = FULL or 1
     */
    gsDPSetScissor(G_SC_NON_INTERLACE, 0, 0, 1023, 1023),
    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage( G_IM_FMT_RGBA, G_IM_SIZ_32b, 1024,
            OS_K0_TO_PHYSICAL(cfb_16_a) ),
    gsDPSetFillColor((0<<24) | (200<<16) | (200 << 8) | 0xff),
    gsDPFillRectangle(0, 0, 1023, 255),
    gsDPPipeSync(),
    gsDPSetCycleType(G_CYC_1CYCLE),
    gsSPEndDisplayList(),

};


/*
 * smaller viewport for optional regression tests.
 */
Gfx regression_viewport[MAX_STATIC_GFX_SIZE] = {
	gsSPViewport(&regression_viewport_d),
	gsSPEndDisplayList(),
};

/*
 * Big viewport & scissor for full extent ew tests
 */
Gfx bigscreen_viewport[MAX_STATIC_GFX_SIZE] = {
	/*
	 * Set the Scissor box to the maximum allowed by the HW.
	 */
	gsDPSetScissor(G_SC_NON_INTERLACE, 0, 0, 0x3ff, 0x3ff),
	gsSPViewport(&bigscreen_viewport_d),
	gsSPEndDisplayList(),
};

/* 
 * clear the color frame buffer (to black) 
 */
Gfx clearcfb_dl[] = {
    gsDPSetCycleType(G_CYC_FILL),
    gsDPSetColorImage(G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WD, 
	OS_K0_TO_PHYSICAL(cfb_16_a) ),
    gsDPSetFillColor(GPACK_RGBA5551(0,0,0,1) << 16 | 
		     GPACK_RGBA5551(0,0,0,1)),
    gsDPFillRectangle(0, 0, SCREEN_WD-2, SCREEN_HT-2),
    gsDPPipeSync(),
    gsSPEndDisplayList(),
};