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 start,'
131 if intype
!= GENERATE
:
132 print ' unsigned in_nr,'
133 print ' unsigned out_nr,'
134 if intype
!= GENERATE
:
135 print ' unsigned restart_index,'
136 print ' void *_out )'
138 if intype
!= GENERATE
:
139 print ' const ' + intype
+ '*in = (const ' + intype
+ '*)_in;'
140 print ' ' + outtype
+ ' *out = (' + outtype
+ '*)_out;'
141 print ' unsigned i, j;'
148 def tris(intype
, outtype
):
149 preamble(intype
, outtype
, prim
='tris')
150 print ' for (i = start, j = 0; j < out_nr; j+=6, i+=3) { '
151 do_tri( intype
, outtype
, 'out+j', 'i', 'i+1', 'i+2' );
156 def tristrip(intype
, outtype
):
157 preamble(intype
, outtype
, prim
='tristrip')
158 print ' for (i = start, j = 0; j < out_nr; j+=6, i++) { '
159 do_tri( intype
, outtype
, 'out+j', 'i', 'i+1/*+(i&1)*/', 'i+2/*-(i&1)*/' );
164 def trifan(intype
, outtype
):
165 preamble(intype
, outtype
, prim
='trifan')
166 print ' for (i = start, j = 0; j < out_nr; j+=6, i++) { '
167 do_tri( intype
, outtype
, 'out+j', '0', 'i+1', 'i+2' );
173 def polygon(intype
, outtype
):
174 preamble(intype
, outtype
, prim
='polygon')
175 print ' for (i = start, j = 0; j < out_nr; j+=2, i++) { '
176 line( intype
, outtype
, 'out+j', 'i', '(i+1)%(out_nr/2)' )
181 def quads(intype
, outtype
):
182 preamble(intype
, outtype
, prim
='quads')
183 print ' for (i = start, j = 0; j < out_nr; j+=8, i+=4) { '
184 do_quad( intype
, outtype
, 'out+j', 'i+0', 'i+1', 'i+2', 'i+3' );
189 def quadstrip(intype
, outtype
):
190 preamble(intype
, outtype
, prim
='quadstrip')
191 print ' for (i = start, j = 0; j < out_nr; j+=8, i+=2) { '
192 do_quad( intype
, outtype
, 'out+j', 'i+2', 'i+0', 'i+1', 'i+3' );
198 for intype
in INTYPES
:
199 for outtype
in OUTTYPES
:
200 tris(intype
, outtype
)
201 tristrip(intype
, outtype
)
202 trifan(intype
, outtype
)
203 quads(intype
, outtype
)
204 quadstrip(intype
, outtype
)
205 polygon(intype
, outtype
)
207 def init(intype
, outtype
, prim
):
208 if intype
== GENERATE
:
209 print ('generate_line[' +
210 outtype_idx
[outtype
] +
211 '][' + longprim
[prim
] +
212 '] = ' + name( intype
, outtype
, prim
) + ';')
214 print ('translate_line[' +
216 '][' + outtype_idx
[outtype
] +
217 '][' + longprim
[prim
] +
218 '] = ' + name( intype
, outtype
, prim
) + ';')
221 def emit_all_inits():
222 for intype
in INTYPES
:
223 for outtype
in OUTTYPES
:
225 init(intype
, outtype
, prim
)
228 print 'void u_unfilled_init( void )'
230 print ' static int firsttime = 1;'
231 print ' if (!firsttime) return;'
232 print ' firsttime = 0;'
240 print '#include "indices/u_unfilled_indices.c"'
250 if __name__
== '__main__':