from __future__ import print_function copyright = ''' /* * Copyright 2009 VMware, Inc. * 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 * on 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 * VMWARE AND/OR THEIR 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. */ ''' GENERATE, UBYTE, USHORT, UINT = 'generate', 'ubyte', 'ushort', 'uint' FIRST, LAST = 'first', 'last' INTYPES = (GENERATE, UBYTE, USHORT, UINT) OUTTYPES = (USHORT, UINT) PRIMS=('tris', 'trifan', 'tristrip', 'quads', 'quadstrip', 'polygon', 'trisadj', 'tristripadj') LONGPRIMS=('PIPE_PRIM_TRIANGLES', 'PIPE_PRIM_TRIANGLE_FAN', 'PIPE_PRIM_TRIANGLE_STRIP', 'PIPE_PRIM_QUADS', 'PIPE_PRIM_QUAD_STRIP', 'PIPE_PRIM_POLYGON', 'PIPE_PRIM_TRIANGLES_ADJACENCY', 'PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY') longprim = dict(zip(PRIMS, LONGPRIMS)) intype_idx = dict(ubyte='IN_UBYTE', ushort='IN_USHORT', uint='IN_UINT') outtype_idx = dict(ushort='OUT_USHORT', uint='OUT_UINT') def prolog(): print('''/* File automatically generated by u_unfilled_gen.py */''') print(copyright) print(r''' /** * @file * Functions to translate and generate index lists */ #include "indices/u_indices.h" #include "indices/u_indices_priv.h" #include "pipe/p_compiler.h" #include "util/u_debug.h" #include "pipe/p_defines.h" #include "util/u_memory.h" static unsigned out_size_idx( unsigned index_size ) { switch (index_size) { case 4: return OUT_UINT; case 2: return OUT_USHORT; default: assert(0); return OUT_USHORT; } } static unsigned in_size_idx( unsigned index_size ) { switch (index_size) { case 4: return IN_UINT; case 2: return IN_USHORT; case 1: return IN_UBYTE; default: assert(0); return IN_UBYTE; } } static u_generate_func generate_line[OUT_COUNT][PRIM_COUNT]; static u_translate_func translate_line[IN_COUNT][OUT_COUNT][PRIM_COUNT]; ''') def vert( intype, outtype, v0 ): if intype == GENERATE: return '(' + outtype + ')(' + v0 + ')' else: return '(' + outtype + ')in[' + v0 + ']' def line( intype, outtype, ptr, v0, v1 ): print(' (' + ptr + ')[0] = ' + vert( intype, outtype, v0 ) + ';') print(' (' + ptr + ')[1] = ' + vert( intype, outtype, v1 ) + ';') # XXX: have the opportunity here to avoid over-drawing shared lines in # tristrips, fans, etc, by integrating this into the calling functions # and only emitting each line at most once. # def do_tri( intype, outtype, ptr, v0, v1, v2 ): line( intype, outtype, ptr, v0, v1 ) line( intype, outtype, ptr + '+2', v1, v2 ) line( intype, outtype, ptr + '+4', v2, v0 ) def do_quad( intype, outtype, ptr, v0, v1, v2, v3 ): line( intype, outtype, ptr, v0, v1 ) line( intype, outtype, ptr + '+2', v1, v2 ) line( intype, outtype, ptr + '+4', v2, v3 ) line( intype, outtype, ptr + '+6', v3, v0 ) def name(intype, outtype, prim): if intype == GENERATE: return 'generate_' + prim + '_' + outtype else: return 'translate_' + prim + '_' + intype + '2' + outtype def preamble(intype, outtype, prim): print('static void ' + name( intype, outtype, prim ) + '(') if intype != GENERATE: print(' const void * _in,') print(' unsigned start,') if intype != GENERATE: print(' unsigned in_nr,') print(' unsigned out_nr,') if intype != GENERATE: print(' unsigned restart_index,') print(' void *_out )') print('{') if intype != GENERATE: print(' const ' + intype + '*in = (const ' + intype + '*)_in;') print(' ' + outtype + ' *out = (' + outtype + '*)_out;') print(' unsigned i, j;') print(' (void)j;') def postamble(): print('}') def tris(intype, outtype): preamble(intype, outtype, prim='tris') print(' for (i = start, j = 0; j < out_nr; j+=6, i+=3) { ') do_tri( intype, outtype, 'out+j', 'i', 'i+1', 'i+2' ); print(' }') postamble() def tristrip(intype, outtype): preamble(intype, outtype, prim='tristrip') print(' for (i = start, j = 0; j < out_nr; j+=6, i++) { ') do_tri( intype, outtype, 'out+j', 'i', 'i+1/*+(i&1)*/', 'i+2/*-(i&1)*/' ); print(' }') postamble() def trifan(intype, outtype): preamble(intype, outtype, prim='trifan') print(' for (i = start, j = 0; j < out_nr; j+=6, i++) { ') do_tri( intype, outtype, 'out+j', '0', 'i+1', 'i+2' ); print(' }') postamble() def polygon(intype, outtype): preamble(intype, outtype, prim='polygon') print(' for (i = start, j = 0; j < out_nr; j+=2, i++) { ') line( intype, outtype, 'out+j', 'i', '(i+1)%(out_nr/2)' ) print(' }') postamble() def quads(intype, outtype): preamble(intype, outtype, prim='quads') print(' for (i = start, j = 0; j < out_nr; j+=8, i+=4) { ') do_quad( intype, outtype, 'out+j', 'i+0', 'i+1', 'i+2', 'i+3' ); print(' }') postamble() def quadstrip(intype, outtype): preamble(intype, outtype, prim='quadstrip') print(' for (i = start, j = 0; j < out_nr; j+=8, i+=2) { ') do_quad( intype, outtype, 'out+j', 'i+2', 'i+0', 'i+1', 'i+3' ); print(' }') postamble() def trisadj(intype, outtype): preamble(intype, outtype, prim='trisadj') print(' for (i = start, j = 0; j < out_nr; j+=6, i+=6) { ') do_tri( intype, outtype, 'out+j', 'i', 'i+2', 'i+4' ); print(' }') postamble() def tristripadj(intype, outtype): preamble(intype, outtype, prim='tristripadj') print(' for (i = start, j = 0; j < out_nr; j+=6, i+=2) { ') do_tri( intype, outtype, 'out+j', 'i', 'i+2', 'i+4' ); print(' }') postamble() def emit_funcs(): for intype in INTYPES: for outtype in OUTTYPES: tris(intype, outtype) tristrip(intype, outtype) trifan(intype, outtype) quads(intype, outtype) quadstrip(intype, outtype) polygon(intype, outtype) trisadj(intype, outtype) tristripadj(intype, outtype) def init(intype, outtype, prim): if intype == GENERATE: print(('generate_line[' + outtype_idx[outtype] + '][' + longprim[prim] + '] = ' + name( intype, outtype, prim ) + ';')) else: print(('translate_line[' + intype_idx[intype] + '][' + outtype_idx[outtype] + '][' + longprim[prim] + '] = ' + name( intype, outtype, prim ) + ';')) def emit_all_inits(): for intype in INTYPES: for outtype in OUTTYPES: for prim in PRIMS: init(intype, outtype, prim) def emit_init(): print('void u_unfilled_init( void )') print('{') print(' static int firsttime = 1;') print(' if (!firsttime) return;') print(' firsttime = 0;') emit_all_inits() print('}') def epilog(): print('#include "indices/u_unfilled_indices.c"') def main(): prolog() emit_funcs() emit_init() epilog() if __name__ == '__main__': main()