trident_tris.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

printf("0x%x\n",clr.i);
    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
    clr.f = 5.0;
    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
    clr.f = 1.0;
    MMIO_OUT32(MMIO, 0x002828 , clr.i );
    MMIO_OUT32(MMIO, 0x00282C , 0xFF );        
#if 0
    clr.f = 1.0;
    MMIO_OUT32(MMIO, 0x002830 , clr.i );
    clr.f = 0.0;
    MMIO_OUT32(MMIO, 0x002834 , clr.i );
#endif

printf("sec TRI\n");
    MMIO_OUT32(MMIO, 0x00281C , 0x00093980 );    
    clr.f = 395.0;
    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
    clr.f = 595.0;
    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
    clr.f = 1.0;
    MMIO_OUT32(MMIO, 0x002828 , clr.i );               
    MMIO_OUT32(MMIO, 0x00282C , 0x00FF00 );        
#if 0
    clr.f = 1.0;
    MMIO_OUT32(MMIO, 0x002830 , clr.i );
    clr.f = 1.0;
    MMIO_OUT32(MMIO, 0x002834 , clr.i );
#endif

#if 0
    MMIO_OUT32(MMIO,  0x002368 , MMIO_IN32(MMIO,0x002368)&0xfffffffe );
#endif

printf("fin TRI\n");

    return 0;  
}

static INLINE void trident_draw_point(tridentContextPtr tmesa, 
			     const tridentVertex *v0 )
{
   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
   (void) MMIO;
}

static INLINE void trident_draw_line( tridentContextPtr tmesa, 
			     const tridentVertex *v0,
			     const tridentVertex *v1 )
{
   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
   (void) MMIO;
}

static INLINE void trident_draw_triangle( tridentContextPtr tmesa,
				 const tridentVertex *v0,
				 const tridentVertex *v1, 
				 const tridentVertex *v2 )
{
}

static INLINE void trident_draw_quad( tridentContextPtr tmesa,
			    const tridentVertex *v0,
			    const tridentVertex *v1,
			    const tridentVertex *v2,
			    const tridentVertex *v3 )
{
   GLuint vertsize = tmesa->vertex_size;
   GLint coloridx = (vertsize > 4) ? 4 : 3;
   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
   int clr;
   float *ftmp = (float *)(&clr);

   if (tmesa->dirty)
	tridentUploadHwStateLocked( tmesa );
#if 0
	DrawTriangle(tmesa);
	exit(0);
#else
#if 1
	if (first) {
	Init3D(tmesa);
#if 0
	DrawTriangle(tmesa);
#endif
	first = 0;
	}
#endif
    
    LOCK_HARDWARE( tmesa );

    MMIO_OUT32(MMIO, 0x002C00 , 0x00000010 );
    MMIO_OUT32(MMIO, 0x002C04 , 0x029C00C0 );

    /* Z buffer */
    MMIO_OUT32(MMIO, 0x002C24 , 0x00100000 /*| (tmesa->tridentScreen->depthOffset)*/ );
    MMIO_OUT32(MMIO, 0x002C28 , 0xE0000000 | (tmesa->tridentScreen->depthPitch * 4) );

    /* front buffer */
    MMIO_OUT32(MMIO, 0x002C50 , 0x00000000 | (tmesa->drawOffset) );
    MMIO_OUT32(MMIO, 0x002C54 , 0x0C320000 | (tmesa->drawPitch * 4) );    

    /* clipper */
    MMIO_OUT32(MMIO, 0x002C80 , 0x20008000 | tmesa->tridentScreen->height );    
    MMIO_OUT32(MMIO, 0x002C84 , 0x20000000 | tmesa->tridentScreen->width );    

    /* writemask */
    MMIO_OUT32(MMIO, 0x002C94 , 0xFFFFFFFF );

if (vertsize == 4) {
    MMIO_OUT32(MMIO, 0x002818 , 0x0003A020 );        
    MMIO_OUT32(MMIO, 0x00281C , 0x00098021 );	

    *ftmp = v0->v.x;
    MMIO_OUT32(MMIO, 0x002820 , clr );               
    *ftmp = v0->v.y;
    MMIO_OUT32(MMIO, 0x002824 , clr );               
    *ftmp = v0->v.z;
    MMIO_OUT32(MMIO, 0x002828 , clr );
#if 0
    *ftmp = v0->v.w;
    MMIO_OUT32(MMIO, 0x00282C , clr );
#endif
    MMIO_OUT32(MMIO, 0x00282C , v0->ui[coloridx] );        

    *ftmp = v1->v.x;
    MMIO_OUT32(MMIO, 0x002820 , clr );               
    *ftmp = v1->v.y;
    MMIO_OUT32(MMIO, 0x002824 , clr );               
    *ftmp = v1->v.z;
    MMIO_OUT32(MMIO, 0x002828 , clr );
#if 0
    *ftmp = v1->v.w;
    MMIO_OUT32(MMIO, 0x00282C , clr );
#endif
    MMIO_OUT32(MMIO, 0x00282C , v1->ui[coloridx] );        

    *ftmp = v2->v.x;
    MMIO_OUT32(MMIO, 0x002820 , clr );               
    *ftmp = v2->v.y;
    MMIO_OUT32(MMIO, 0x002824 , clr );               
    *ftmp = v2->v.z;
    MMIO_OUT32(MMIO, 0x002828 , clr );
#if 0
    *ftmp = v2->v.w;
    MMIO_OUT32(MMIO, 0x00282C , clr );
#endif
    MMIO_OUT32(MMIO, 0x00282C , v2->ui[coloridx] );        

    MMIO_OUT32(MMIO, 0x00281C , 0x00093020 );    
    *ftmp = v3->v.x;
    MMIO_OUT32(MMIO, 0x002820 , clr );               
    *ftmp = v3->v.y;
    MMIO_OUT32(MMIO, 0x002824 , clr );               
    *ftmp = v3->v.z;
    MMIO_OUT32(MMIO, 0x002828 , clr );
#if 0
    *ftmp = v3->v.w;
    MMIO_OUT32(MMIO, 0x00282C , clr );
#endif
    MMIO_OUT32(MMIO, 0x00282C , v3->ui[coloridx] );        

}
#endif

    UNLOCK_HARDWARE( tmesa );
}
/***********************************************************************
 *                    Rasterization fallback helpers                   *
 ***********************************************************************/


/* This code is hit only when a mix of accelerated and unaccelerated
 * primitives are being drawn, and only for the unaccelerated
 * primitives.  
 */
#if 0
static void 
trident_fallback_quad( tridentContextPtr tmesa, 
		    const tridentVertex *v0, 
		    const tridentVertex *v1, 
		    const tridentVertex *v2, 
		    const tridentVertex *v3 )
{
   GLcontext *ctx = tmesa->glCtx;
   SWvertex v[4];
   trident_translate_vertex( ctx, v0, &v[0] );
   trident_translate_vertex( ctx, v1, &v[1] );
   trident_translate_vertex( ctx, v2, &v[2] );
   trident_translate_vertex( ctx, v3, &v[3] );
   _swrast_Quad( ctx, &v[0], &v[1], &v[2], &v[3] );
}
#endif

/* XXX hack to get the prototype defined in time... */
void trident_translate_vertex(GLcontext *ctx, const tridentVertex *src,
                              SWvertex *dst);

static void 
trident_fallback_tri( tridentContextPtr tmesa, 
		    const tridentVertex *v0, 
		    const tridentVertex *v1, 
		    const tridentVertex *v2 )
{
   GLcontext *ctx = tmesa->glCtx;
   SWvertex v[3];
   trident_translate_vertex( ctx, v0, &v[0] );
   trident_translate_vertex( ctx, v1, &v[1] );
   trident_translate_vertex( ctx, v2, &v[2] );
   _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
}

static void 
trident_fallback_line( tridentContextPtr tmesa,
		     const tridentVertex *v0,
		     const tridentVertex *v1 )
{
   GLcontext *ctx = tmesa->glCtx;
   SWvertex v[2];
   trident_translate_vertex( ctx, v0, &v[0] );
   trident_translate_vertex( ctx, v1, &v[1] );
   _swrast_Line( ctx, &v[0], &v[1] );
}


static void 
trident_fallback_point( tridentContextPtr tmesa, 
		      const tridentVertex *v0 )
{
   GLcontext *ctx = tmesa->glCtx;
   SWvertex v[1];
   trident_translate_vertex( ctx, v0, &v[0] );
   _swrast_Point( ctx, &v[0] );
}

/***********************************************************************
 *          Macros for t_dd_tritmp.h to draw basic primitives          *
 ***********************************************************************/

#define TRI( a, b, c )				\
do {						\
   if (DO_FALLBACK)				\
      tmesa->draw_tri( tmesa, a, b, c );	\
   else						\
      trident_draw_triangle( tmesa, a, b, c );	\
} while (0)

#define QUAD( a, b, c, d )			\
do {						\
   if (DO_FALLBACK) {				\
      tmesa->draw_tri( tmesa, a, b, d );	\
      tmesa->draw_tri( tmesa, b, c, d );	\
   } else 					\
      trident_draw_quad( tmesa, a, b, c, d );	\
} while (0)

#define LINE( v0, v1 )				\
do {						\
   if (DO_FALLBACK)				\
      tmesa->draw_line( tmesa, v0, v1 );	\
   else 					\
      trident_draw_line( tmesa, v0, v1 );	\
} while (0)

#define POINT( v0 )				\
do {						\
   if (DO_FALLBACK)				\
      tmesa->draw_point( tmesa, v0 );		\
   else 					\
      trident_draw_point( tmesa, v0 );		\
} while (0)

/***********************************************************************
 *              Build render functions from dd templates               *
 ***********************************************************************/

#define TRIDENT_OFFSET_BIT 	0x01
#define TRIDENT_TWOSIDE_BIT	0x02
#define TRIDENT_UNFILLED_BIT	0x04
#define TRIDENT_FALLBACK_BIT	0x08
#define TRIDENT_MAX_TRIFUNC	0x10


static struct {
   tnl_points_func	points;
   tnl_line_func	line;
   tnl_triangle_func	triangle;
   tnl_quad_func	quad;
} rast_tab[TRIDENT_MAX_TRIFUNC];


#define DO_FALLBACK (IND & TRIDENT_FALLBACK_BIT)
#define DO_OFFSET   (IND & TRIDENT_OFFSET_BIT)
#define DO_UNFILLED (IND & TRIDENT_UNFILLED_BIT)
#define DO_TWOSIDE  (IND & TRIDENT_TWOSIDE_BIT)
#define DO_FLAT      0
#define DO_TRI       1
#define DO_QUAD      1
#define DO_LINE      1
#define DO_POINTS    1
#define DO_FULL_QUAD 1

#define HAVE_RGBA         1
#define HAVE_SPEC         1
#define HAVE_BACK_COLORS  0
#define HAVE_HW_FLATSHADE 1
#define VERTEX            tridentVertex
#define TAB               rast_tab

#define DEPTH_SCALE 1.0
#define UNFILLED_TRI unfilled_tri
#define UNFILLED_QUAD unfilled_quad
#define VERT_X(_v) _v->v.x
#define VERT_Y(_v) _v->v.y
#define VERT_Z(_v) _v->v.z
#define AREA_IS_CCW( a ) (a > 0)
#define GET_VERTEX(e) (tmesa->verts + (e<<tmesa->vertex_stride_shift))

#define TRIDENT_COLOR( dst, src )                \
do {						\
   dst[0] = src[2];				\
   dst[1] = src[1];				\
   dst[2] = src[0];				\
   dst[3] = src[3];				\
} while (0)

#define TRIDENT_SPEC( dst, src )			\
do {						\
   dst[0] = src[2];				\
   dst[1] = src[1];				\
   dst[2] = src[0];				\
} while (0)

#define VERT_SET_RGBA( v, c )    TRIDENT_COLOR( v->ub4[coloroffset], c )
#define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
#define VERT_SAVE_RGBA( idx )    color[idx] = v[idx]->ui[coloroffset]
#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]

#define VERT_SET_SPEC( v, c )    if (havespec) TRIDENT_SPEC( v->ub4[5], c )
#define VERT_COPY_SPEC( v0, v1 ) if (havespec) COPY_3V(v0->ub4[5], v1->ub4[5])
#define VERT_SAVE_SPEC( idx )    if (havespec) spec[idx] = v[idx]->ui[5]
#define VERT_RESTORE_SPEC( idx ) if (havespec) v[idx]->ui[5] = spec[idx]

#define LOCAL_VARS(n)						\
   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);		\
   GLuint color[n], spec[n];					\
   GLuint coloroffset = (tmesa->vertex_size == 4 ? 3 : 4);	\
   GLboolean havespec = (tmesa->vertex_size == 4 ? 0 : 1);	\
   (void) color; (void) spec; (void) coloroffset; (void) havespec;
/***********************************************************************
 *                Helpers for rendering unfilled primitives            *
 ***********************************************************************/
#if 0
static const GLuint hw_prim[GL_POLYGON+1] = {
   B_PrimType_Points,
   B_PrimType_Lines,
   B_PrimType_Lines,
   B_PrimType_Lines,
   B_PrimType_Triangles,
   B_PrimType_Triangles,
   B_PrimType_Triangles,
   B_PrimType_Triangles,
   B_PrimType_Triangles,
   B_PrimType_Triangles
};
#endif

static void tridentResetLineStipple( GLcontext *ctx );
#if 0
static void tridentRasterPrimitive( GLcontext *ctx, GLuint hwprim );
#endif
static void tridentRenderPrimitive( GLcontext *ctx, GLenum prim );

#define RASTERIZE(x) /*if (tmesa->hw_primitive != hw_prim[x]) \
                        tridentRasterPrimitive( ctx, hw_prim[x] ) */
#define RENDER_PRIMITIVE tmesa->render_primitive