4 * Copyright 2009 VMware, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * on the rights to use, copy, modify, merge, publish, distribute, sub
11 * license, and/or sell copies of the Software, and to permit persons to whom
12 * the Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
28 GENERATE, UBYTE, USHORT, UINT = 'generate', 'ubyte', 'ushort', 'uint'
29 FIRST, LAST = 'first', 'last'
31 INTYPES = (GENERATE, UBYTE, USHORT, UINT)
32 OUTTYPES = (USHORT, UINT)
40 LONGPRIMS=('PIPE_PRIM_TRIANGLES',
41 'PIPE_PRIM_TRIANGLE_FAN',
42 'PIPE_PRIM_TRIANGLE_STRIP',
44 'PIPE_PRIM_QUAD_STRIP',
47 longprim = dict(zip(PRIMS, LONGPRIMS))
48 intype_idx = dict(ubyte='IN_UBYTE', ushort='IN_USHORT', uint='IN_UINT')
49 outtype_idx = dict(ushort='OUT_USHORT', uint='OUT_UINT')
53 print '''/* File automatically generated by u_unfilled_gen.py */'''
59 * Functions to translate and generate index lists
62 #include "indices/u_indices.h"
63 #include "indices/u_indices_priv.h"
64 #include "pipe/p_compiler.h"
65 #include "util/u_debug.h"
66 #include "pipe/p_defines.h"
67 #include "util/u_memory.h"
70 static unsigned out_size_idx( unsigned index_size )
73 case 4: return OUT_UINT;
74 case 2: return OUT_USHORT;
75 default: assert(0); return OUT_USHORT;
79 static unsigned in_size_idx( unsigned index_size )
82 case 4: return IN_UINT;
83 case 2: return IN_USHORT;
84 case 1: return IN_UBYTE;
85 default: assert(0); return IN_UBYTE;
90 static u_generate_func generate_line[OUT_COUNT][PRIM_COUNT];
91 static u_translate_func translate_line[IN_COUNT][OUT_COUNT][PRIM_COUNT];
95 def vert( intype, outtype, v0 ):
96 if intype == GENERATE:
97 return '(' + outtype + ')(' + v0 + ')'
99 return '(' + outtype + ')in[' + v0 + ']'
101 def line( intype, outtype, ptr, v0, v1 ):
102 print ' (' + ptr + ')[0] = ' + vert( intype, outtype, v0 ) + ';'
103 print ' (' + ptr + ')[1] = ' + vert( intype, outtype, v1 ) + ';'
105 # XXX: have the opportunity here to avoid over-drawing shared lines in
106 # tristrips, fans, etc, by integrating this into the calling functions
107 # and only emitting each line at most once.
109 def do_tri( intype, outtype, ptr, v0, v1, v2 ):
110 line( intype, outtype, ptr, v0, v1 )
111 line( intype, outtype, ptr + '+2', v1, v2 )
112 line( intype, outtype, ptr + '+4', v2, v0 )
114 def do_quad( intype, outtype, ptr, v0, v1, v2, v3 ):
115 line( intype, outtype, ptr, v0, v1 )
116 line( intype, outtype, ptr + '+2', v1, v2 )
117 line( intype, outtype, ptr + '+4', v2, v3 )
118 line( intype, outtype, ptr + '+6', v3, v0 )
120 def name(intype, outtype, prim):
121 if intype == GENERATE:
122 return 'generate_' + prim + '_' + outtype
124 return 'translate_' + prim + '_' + intype + '2' + outtype
126 def preamble(intype, outtype, prim):
127 print 'static void ' + name( intype, outtype, prim ) + '('
128 if intype != GENERATE:
129 print ' const void * _in,'
130 print ' unsigned nr,'
131 print ' void *_out )'
133 if intype != GENERATE:
134 print ' const ' + intype + '*in = (const ' + intype + '*)_in;'
135 print ' ' + outtype + ' *out = (' + outtype + '*)_out;'
136 print ' unsigned i, j;'
143 def tris(intype, outtype):
144 preamble(intype, outtype, prim='tris')
145 print ' for (j = i = 0; j < nr; j+=6, i+=3) { '
146 do_tri( intype, outtype, 'out+j', 'i', 'i+1', 'i+2' );
151 def tristrip(intype, outtype):
152 preamble(intype, outtype, prim='tristrip')
153 print ' for (j = i = 0; j < nr; j+=6, i++) { '
154 do_tri( intype, outtype, 'out+j', 'i', 'i+1/*+(i&1)*/', 'i+2/*-(i&1)*/' );
159 def trifan(intype, outtype):
160 preamble(intype, outtype, prim='trifan')
161 print ' for (j = i = 0; j < nr; j+=6, i++) { '
162 do_tri( intype, outtype, 'out+j', '0', 'i+1', 'i+2' );
168 def polygon(intype, outtype):
169 preamble(intype, outtype, prim='polygon')
170 print ' for (j = i = 0; j < nr; j+=2, i++) { '
171 line( intype, outtype, 'out+j', 'i', '(i+1)%(nr/2)' )
176 def quads(intype, outtype):
177 preamble(intype, outtype, prim='quads')
178 print ' for (j = i = 0; j < nr; j+=8, i+=4) { '
179 do_quad( intype, outtype, 'out+j', 'i+0', 'i+1', 'i+2', 'i+3' );
184 def quadstrip(intype, outtype):
185 preamble(intype, outtype, prim='quadstrip')
186 print ' for (j = i = 0; j < nr; j+=8, i+=2) { '
187 do_quad( intype, outtype, 'out+j', 'i+2', 'i+0', 'i+1', 'i+3' );
193 for intype in INTYPES:
194 for outtype in OUTTYPES:
195 tris(intype, outtype)
196 tristrip(intype, outtype)
197 trifan(intype, outtype)
198 quads(intype, outtype)
199 quadstrip(intype, outtype)
200 polygon(intype, outtype)
202 def init(intype, outtype, prim):
203 if intype == GENERATE:
204 print ('generate_line[' +
205 outtype_idx[outtype] +
206 '][' + longprim[prim] +
207 '] = ' + name( intype, outtype, prim ) + ';')
209 print ('translate_line[' +
211 '][' + outtype_idx[outtype] +
212 '][' + longprim[prim] +
213 '] = ' + name( intype, outtype, prim ) + ';')
216 def emit_all_inits():
217 for intype in INTYPES:
218 for outtype in OUTTYPES:
220 init(intype, outtype, prim)
223 print 'void u_unfilled_init( void )'
225 print ' static int firsttime = 1;'
226 print ' if (!firsttime) return;'
227 print ' firsttime = 0;'
235 print '#include "indices/u_unfilled_indices.c"'
245 if __name__ == '__main__':