diff options
Diffstat (limited to 'src/gallium/auxiliary/indices/u_unfilled_gen.py')
-rw-r--r-- | src/gallium/auxiliary/indices/u_unfilled_gen.py | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/indices/u_unfilled_gen.py b/src/gallium/auxiliary/indices/u_unfilled_gen.py new file mode 100644 index 0000000000..d0344fe313 --- /dev/null +++ b/src/gallium/auxiliary/indices/u_unfilled_gen.py @@ -0,0 +1,247 @@ +#!/usr/bin/env python +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') + +LONGPRIMS=('PIPE_PRIM_TRIANGLES', + 'PIPE_PRIM_TRIANGLE_FAN', + 'PIPE_PRIM_TRIANGLE_STRIP', + 'PIPE_PRIM_QUADS', + 'PIPE_PRIM_QUAD_STRIP', + 'PIPE_PRIM_POLYGON') + +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 ' debug_printf(" line %d %d\\n", (int)' + v0 + ', (int)' + 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 nr,' + 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 (j = i = 0; j < 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 (j = i = 0; j < 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 (j = i = 0; j < 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 (j = i = 0; j < nr; j+=6, i++) { ' + do_tri( intype, outtype, 'out+j', '0', 'i+1', 'i+2' ); + print ' }' + postamble() + + +def quads(intype, outtype): + preamble(intype, outtype, prim='quads') + print ' for (j = i = 0; j < 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 (j = i = 0; j < nr; j+=8, i+=2) { ' + do_quad( intype, outtype, 'out+j', 'i+2', 'i+0', 'i+1', 'i+3' ); + 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) + +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() |