ffb_rendertmp.h

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

		__FUNCTION__, start, count, flags);
#endif
	ffbRenderPrimitive(ctx, GL_TRIANGLE_STRIP);

	i = start + 2;
	goto something_clipped;

 something_clipped:
	for (; i < count; i++, parity ^= 1) {
		ffb_vertex *v0 = &fmesa->verts[ELT(i - 2 + parity)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 1 - parity)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE

		FFB_COMPUTE_AREA_TRI(v0, v1, v2);
		FFB_CULL_TRI(continue;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 3) + 9));
		FFB_SET_PRIM_COLOR(v2);

		FFB_SET_VERTEX_COLOR(v0);
		ffb->z   = FFB_GET_Z(v0);
		ffb->ryf = FFB_GET_Y(v0);
		ffb->rxf = FFB_GET_X(v0);

		FFB_SET_VERTEX_COLOR(v1);
		ffb->z   = FFB_GET_Z(v1);
		ffb->y   = FFB_GET_Y(v1);
		ffb->x   = FFB_GET_X(v1);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z   = FFB_GET_Z(v2);
		ffb->y   = FFB_GET_Y(v2);
		ffb->x   = FFB_GET_X(v2);

		i++;
		parity ^= 1;
		break;
	}

	for (; i < count; i++, parity ^= 1) {
		ffb_vertex *v0 = &fmesa->verts[ELT(i - 2 + parity)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 1 - parity)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE
		(void) v0; (void) v1;

		FFB_COMPUTE_AREA_TRI(v0, v1, v2);
		FFB_CULL_TRI(i++; parity^=1; goto something_clipped;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 1) + 3));
		FFB_SET_PRIM_COLOR(v2);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z   = FFB_GET_Z(v2);
		ffb->y   = FFB_GET_Y(v2);
		ffb->x   = FFB_GET_X(v2);
	}

	fmesa->ffbScreen->rp_active = 1;
}

static void TAG(ffb_vb_tri_fan)(GLcontext *ctx, GLuint start, GLuint count, GLuint flags)
{
	GLint i;
	IMPL_LOCAL_VARS;

#ifdef FFB_RENDER_TRACE
	fprintf(stderr, "%s: start(%d) count(%d) flags(%x)\n",
		__FUNCTION__, start, count, flags);
#endif
	ffbRenderPrimitive(ctx, GL_TRIANGLE_FAN);

	i = start + 2;
	goto something_clipped;

 something_clipped:
	for ( ; i < count; i++) {
		ffb_vertex *v0 = &fmesa->verts[ELT(start)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 1)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE

		FFB_COMPUTE_AREA_TRI(v0, v1, v2);
		FFB_CULL_TRI(continue;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 3) + 9));
		FFB_SET_PRIM_COLOR(v2);

		FFB_SET_VERTEX_COLOR(v0);
		ffb->z   = FFB_GET_Z(v0);
		ffb->ryf = FFB_GET_Y(v0);
		ffb->rxf = FFB_GET_X(v0);

		FFB_SET_VERTEX_COLOR(v1);
		ffb->z   = FFB_GET_Z(v1);
		ffb->y   = FFB_GET_Y(v1);
		ffb->x   = FFB_GET_X(v1);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z   = FFB_GET_Z(v2);
		ffb->y   = FFB_GET_Y(v2);
		ffb->x   = FFB_GET_X(v2);

		i++;
		break;
	}

	for (; i < count; i++) {
		ffb_vertex *v0 = &fmesa->verts[ELT(start)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 1)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE
		(void) v0; (void) v1;

		FFB_COMPUTE_AREA_TRI(v0, v1, v2);
		FFB_CULL_TRI(i++; goto something_clipped;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 1) + 3));
		FFB_SET_PRIM_COLOR(v2);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z    = FFB_GET_Z(v2);
		ffb->dmyf = FFB_GET_Y(v2);
		ffb->dmxf = FFB_GET_X(v2);
	}

	fmesa->ffbScreen->rp_active = 1;
}

static void TAG(ffb_vb_poly)(GLcontext *ctx, GLuint start, GLuint count, GLuint flags)
{
	GLint i;
	IMPL_LOCAL_VARS;

#ifdef FFB_RENDER_TRACE
	fprintf(stderr, "%s: start(%d) count(%d) flags(%x)\n",
		__FUNCTION__, start, count, flags);
#endif
	ffbRenderPrimitive(ctx, GL_POLYGON);

	/* XXX Optimize XXX */
	for (i = start + 2; i < count; i++) {
		ffb_vertex *v0 = &fmesa->verts[ELT(i - 1)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i)];
		ffb_vertex *v2 = &fmesa->verts[ELT(start)];
		FFB_AREA_DECLARE

		FFB_COMPUTE_AREA_TRI(v0, v1, v2);
		FFB_CULL_TRI(continue;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 3) + 9));
		FFB_SET_PRIM_COLOR(v2);

		FFB_SET_VERTEX_COLOR(v0);
		ffb->z   = FFB_GET_Z(v0);
		ffb->ryf = FFB_GET_Y(v0);
		ffb->rxf = FFB_GET_X(v0);

		FFB_SET_VERTEX_COLOR(v1);
		ffb->z   = FFB_GET_Z(v1);
		ffb->y   = FFB_GET_Y(v1);
		ffb->x   = FFB_GET_X(v1);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z   = FFB_GET_Z(v2);
		ffb->y   = FFB_GET_Y(v2);
		ffb->x   = FFB_GET_X(v2);
	}

	fmesa->ffbScreen->rp_active = 1;
}

static void TAG(ffb_vb_quads)(GLcontext *ctx, GLuint start, GLuint count, GLuint flags)
{
	GLint i;
	IMPL_LOCAL_VARS;

#ifdef FFB_RENDER_TRACE
	fprintf(stderr, "%s: start(%d) count(%d) flags(%x)\n",
		__FUNCTION__, start, count, flags);
#endif
	ffbRenderPrimitive(ctx, GL_QUADS);

	for (i = start + 3; i < count; i += 4) {
		ffb_vertex *v0 = &fmesa->verts[ELT(i - 3)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 2)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 1)];
		ffb_vertex *v3 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE

		FFB_COMPUTE_AREA_QUAD(v0, v1, v2, v3);
		FFB_CULL_QUAD(continue;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 4) + 12));
		FFB_SET_PRIM_COLOR(v3);

		FFB_SET_VERTEX_COLOR(v0);
		ffb->z    = FFB_GET_Z(v0);
		ffb->ryf  = FFB_GET_Y(v0);
		ffb->rxf  = FFB_GET_X(v0);

		FFB_SET_VERTEX_COLOR(v1);
		ffb->z    = FFB_GET_Z(v1);
		ffb->y    = FFB_GET_Y(v1);
		ffb->x    = FFB_GET_X(v1);

		FFB_SET_VERTEX_COLOR(v2);
		ffb->z    = FFB_GET_Z(v2);
		ffb->y    = FFB_GET_Y(v2);
		ffb->x    = FFB_GET_X(v2);

		FFB_SET_VERTEX_COLOR(v3);
		ffb->z    = FFB_GET_Z(v3);
		ffb->dmyf = FFB_GET_Y(v3);
		ffb->dmxf = FFB_GET_X(v3);
	}

	fmesa->ffbScreen->rp_active = 1;
}

static void TAG(ffb_vb_quad_strip)(GLcontext *ctx, GLuint start, GLuint count, GLuint flags)
{
	GLint i;
	IMPL_LOCAL_VARS;

#ifdef FFB_RENDER_TRACE
	fprintf(stderr, "%s: start(%d) count(%d) flags(%x)\n",
		__FUNCTION__, start, count, flags);
#endif
	ffbRenderPrimitive(ctx, GL_QUAD_STRIP);

	/* XXX Optimize XXX */
	for (i = start + 3; i < count; i += 2) {
		ffb_vertex *v0 = &fmesa->verts[ELT(i - 1)];
		ffb_vertex *v1 = &fmesa->verts[ELT(i - 3)];
		ffb_vertex *v2 = &fmesa->verts[ELT(i - 2)];
		ffb_vertex *v3 = &fmesa->verts[ELT(i - 0)];
		FFB_AREA_DECLARE

		FFB_COMPUTE_AREA_QUAD(v0, v1, v2, v3);
		FFB_CULL_QUAD(continue;);

		FFBFifo(fmesa, (FFB_PRIM_COLOR_COST +
				(FFB_VERTEX_COLOR_COST * 4) + 12));
		FFB_SET_PRIM_COLOR(v3);

		FFB_DUMP_VERTEX(v0);
		FFB_SET_VERTEX_COLOR(v0);
		ffb->z    = FFB_GET_Z(v0);
		ffb->ryf  = FFB_GET_Y(v0);
		ffb->rxf  = FFB_GET_X(v0);

		FFB_DUMP_VERTEX(v1);
		FFB_SET_VERTEX_COLOR(v1);
		ffb->z    = FFB_GET_Z(v1);
		ffb->y    = FFB_GET_Y(v1);
		ffb->x    = FFB_GET_X(v1);

		FFB_DUMP_VERTEX(v2);
		FFB_SET_VERTEX_COLOR(v2);
		ffb->z    = FFB_GET_Z(v2);
		ffb->y    = FFB_GET_Y(v2);
		ffb->x    = FFB_GET_X(v2);

		FFB_DUMP_VERTEX(v3);
		FFB_SET_VERTEX_COLOR(v3);
		ffb->z    = FFB_GET_Z(v3);
		ffb->dmyf = FFB_GET_Y(v3);
		ffb->dmxf = FFB_GET_X(v3);
	}

	fmesa->ffbScreen->rp_active = 1;
}

static void (*TAG(render_tab)[GL_POLYGON + 2])(GLcontext *, GLuint, GLuint, GLuint) =
{
#if !(IND & (FFB_TRI_CULL_BIT))
	TAG(ffb_vb_points),
	TAG(ffb_vb_lines),
	TAG(ffb_vb_line_loop),
	TAG(ffb_vb_line_strip),
#else
	NULL,
	NULL,
	NULL,
	NULL,
#endif
	TAG(ffb_vb_triangles),
	TAG(ffb_vb_tri_strip),
	TAG(ffb_vb_tri_fan),
	TAG(ffb_vb_quads),
	TAG(ffb_vb_quad_strip),
	TAG(ffb_vb_poly),
	ffb_vb_noop,
};

#undef IND
#undef TAG

#undef IMPL_LOCAL_VARS
#undef FFB_DECLARE_CACHED_COLOR
#undef FFB_COMPUTE_CACHED_COLOR
#undef FFB_CACHED_COLOR_SAME
#undef FFB_CACHED_COLOR_SET
#undef FFB_CACHED_COLOR_UPDATE
#undef FFB_SET_PRIM_COLOR
#undef FFB_PRIM_COLOR_COST
#undef FFB_SET_VERTEX_COLOR
#undef FFB_VERTEX_COLOR_COST
#undef RESET_STIPPLE
#undef FFB_AREA_DECLARE
#undef FFB_COMPUTE_AREA_TRI
#undef FFB_COMPUTE_AREA_QUAD
#undef FFB_CULL_TRI
#undef FFB_CULL_QUAD