/************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ /* * Authors: * Keith Whitwell */ #include "pipe/p_util.h" #include "draw/draw_context.h" #include "draw/draw_private.h" #include "draw/draw_pt.h" #define CACHE_MAX 32 #define FETCH_MAX 128 #define DRAW_MAX (16*1024) struct vcache_frontend { struct draw_pt_front_end base; struct draw_context *draw; unsigned in[CACHE_MAX]; ushort out[CACHE_MAX]; ushort draw_elts[DRAW_MAX]; unsigned fetch_elts[FETCH_MAX]; unsigned draw_count; unsigned fetch_count; struct draw_pt_middle_end *middle; unsigned input_prim; unsigned output_prim; }; static void vcache_flush( struct vcache_frontend *vcache ) { if (vcache->draw_count) { vcache->middle->run( vcache->middle, vcache->fetch_elts, vcache->fetch_count, vcache->draw_elts, vcache->draw_count ); } memset(vcache->in, ~0, sizeof(vcache->in)); vcache->fetch_count = 0; vcache->draw_count = 0; } static void vcache_check_flush( struct vcache_frontend *vcache ) { if ( vcache->draw_count + 6 >= DRAW_MAX || vcache->fetch_count + 4 >= FETCH_MAX ) { vcache_flush( vcache ); } } static INLINE void vcache_elt( struct vcache_frontend *vcache, unsigned felt, ushort flags ) { unsigned idx = felt % CACHE_MAX; if (vcache->in[idx] != felt) { assert(vcache->fetch_count < FETCH_MAX); vcache->in[idx] = felt; vcache->out[idx] = (ushort)vcache->fetch_count; vcache->fetch_elts[vcache->fetch_count++] = felt; } vcache->draw_elts[vcache->draw_count++] = vcache->out[idx] | flags; } static void vcache_triangle( struct vcache_frontend *vcache, unsigned i0, unsigned i1, unsigned i2 ) { vcache_elt(vcache, i0, 0); vcache_elt(vcache, i1, 0); vcache_elt(vcache, i2, 0); vcache_check_flush(vcache); } static void vcache_triangle_flags( struct vcache_frontend *vcache, ushort flags, unsigned i0, unsigned i1, unsigned i2 ) { vcache_elt(vcache, i0, flags); vcache_elt(vcache, i1, 0); vcache_elt(vcache, i2, 0); vcache_check_flush(vcache); } static void vcache_line( struct vcache_frontend *vcache, unsigned i0, unsigned i1 ) { vcache_elt(vcache, i0, 0); vcache_elt(vcache, i1, 0); vcache_check_flush(vcache); } static void vcache_line_flags( struct vcache_frontend *vcache, ushort flags, unsigned i0, unsigned i1 ) { vcache_elt(vcache, i0, flags); vcache_elt(vcache, i1, 0); vcache_check_flush(vcache); } static void vcache_point( struct vcache_frontend *vcache, unsigned i0 ) { vcache_elt(vcache, i0, 0); vcache_check_flush(vcache); } static void vcache_quad( struct vcache_frontend *vcache, unsigned i0, unsigned i1, unsigned i2, unsigned i3 ) { vcache_triangle( vcache, i0, i1, i3 ); vcache_triangle( vcache, i1, i2, i3 ); } static void vcache_ef_quad( struct vcache_frontend *vcache, unsigned i0, unsigned i1, unsigned i2, unsigned i3 ) { const unsigned omitEdge1 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_2; const unsigned omitEdge2 = DRAW_PIPE_EDGE_FLAG_0 | DRAW_PIPE_EDGE_FLAG_1; vcache_triangle_flags( vcache, DRAW_PIPE_RESET_STIPPLE | omitEdge1, i0, i1, i3 ); vcache_triangle_flags( vcache, omitEdge2, i1, i2, i3 ); } /* At least for now, we're back to using a template include file for * this. The two paths aren't too different though - it may be * possible to reunify them. */ #define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle_flags(vc,flags,i0,i1,i2) #define QUAD(vc,i0,i1,i2,i3) vcache_ef_quad(vc,i0,i1,i2,i3) #define LINE(vc,flags,i0,i1) vcache_line_flags(vc,flags,i0,i1) #define POINT(vc,i0) vcache_point(vc,i0) #define FUNC vcache_run_extras #include "draw_pt_vcache_tmp.h" #define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle(vc,i0,i1,i2) #define QUAD(vc,i0,i1,i2,i3) vcache_quad(vc,i0,i1,i2,i3) #define LINE(vc,flags,i0,i1) vcache_line(vc,i0,i1) #define POINT(vc,i0) vcache_point(vc,i0) #define FUNC vcache_run #include "draw_pt_vcache_tmp.h" static unsigned reduced_prim[PIPE_PRIM_POLYGON + 1] = { PIPE_PRIM_POINTS, PIPE_PRIM_LINES, PIPE_PRIM_LINES, PIPE_PRIM_LINES, PIPE_PRIM_TRIANGLES, PIPE_PRIM_TRIANGLES, PIPE_PRIM_TRIANGLES, PIPE_PRIM_TRIANGLES, PIPE_PRIM_TRIANGLES, PIPE_PRIM_TRIANGLES }; static void vcache_prepare( struct draw_pt_front_end *frontend, unsigned prim, struct draw_pt_middle_end *middle, unsigned opt ) { struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; if (opt & PT_PIPELINE) { vcache->base.run = vcache_run_extras; } else { vcache->base.run = vcache_run; } vcache->input_prim = prim; vcache->output_prim = reduced_prim[prim]; vcache->middle = middle; middle->prepare( middle, vcache->output_prim, opt ); } static void vcache_finish( struct draw_pt_front_end *frontend ) { struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; vcache->middle->finish( vcache->middle ); vcache->middle = NULL; } static void vcache_destroy( struct draw_pt_front_end *frontend ) { FREE(frontend); } struct draw_pt_front_end *draw_pt_vcache( struct draw_context *draw ) { struct vcache_frontend *vcache = CALLOC_STRUCT( vcache_frontend ); if (vcache == NULL) return NULL; vcache->base.prepare = vcache_prepare; vcache->base.run = NULL; vcache->base.finish = vcache_finish; vcache->base.destroy = vcache_destroy; vcache->draw = draw; memset(vcache->in, ~0, sizeof(vcache->in)); return &vcache->base; }