diff options
Diffstat (limited to 'src/gallium/auxiliary/indices/u_indices.c')
| -rw-r--r-- | src/gallium/auxiliary/indices/u_indices.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/indices/u_indices.c b/src/gallium/auxiliary/indices/u_indices.c new file mode 100644 index 0000000000..03d7453f30 --- /dev/null +++ b/src/gallium/auxiliary/indices/u_indices.c @@ -0,0 +1,253 @@ +/* + * 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. + */ + +#include "u_indices.h" +#include "u_indices_priv.h" + +static void translate_memcpy_ushort( const void *in, + unsigned nr, + void *out ) +{ + memcpy(out, in, nr*sizeof(short)); +} + +static void translate_memcpy_uint( const void *in, + unsigned nr, + void *out ) +{ + memcpy(out, in, nr*sizeof(int)); +} + + +int u_index_translator( unsigned hw_mask, + unsigned prim, + unsigned in_index_size, + unsigned nr, + unsigned in_pv, + unsigned out_pv, + unsigned *out_prim, + unsigned *out_index_size, + unsigned *out_nr, + u_translate_func *out_translate ) +{ + unsigned in_idx; + unsigned out_idx; + int ret = U_TRANSLATE_NORMAL; + + u_index_init(); + + in_idx = in_size_idx(in_index_size); + *out_index_size = (in_index_size == 4) ? 4 : 2; + out_idx = out_size_idx(*out_index_size); + + if ((hw_mask & (1<<prim)) && + in_index_size == *out_index_size && + in_pv == out_pv) + { + if (in_index_size == 4) + *out_translate = translate_memcpy_uint; + else + *out_translate = translate_memcpy_ushort; + + *out_prim = prim; + *out_nr = nr; + + return U_TRANSLATE_MEMCPY; + } + else { + switch (prim) { + case PIPE_PRIM_POINTS: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_POINTS; + *out_nr = nr; + break; + + case PIPE_PRIM_LINES: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = nr; + break; + + case PIPE_PRIM_LINE_STRIP: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = (nr - 1) * 2; + break; + + case PIPE_PRIM_LINE_LOOP: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = nr * 2; + break; + + case PIPE_PRIM_TRIANGLES: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = nr; + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + break; + + case PIPE_PRIM_TRIANGLE_FAN: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + break; + + case PIPE_PRIM_QUADS: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr / 4) * 6; + break; + + case PIPE_PRIM_QUAD_STRIP: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + break; + + case PIPE_PRIM_POLYGON: + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + break; + + default: + assert(0); + *out_translate = translate[in_idx][out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_POINTS; + *out_nr = nr; + return U_TRANSLATE_ERROR; + } + } + + return ret; +} + + + + + +int u_index_generator( unsigned hw_mask, + unsigned prim, + unsigned start, + unsigned nr, + unsigned in_pv, + unsigned out_pv, + unsigned *out_prim, + unsigned *out_index_size, + unsigned *out_nr, + u_generate_func *out_generate ) + +{ + unsigned out_idx; + + u_index_init(); + + *out_index_size = ((start + nr) > 0xfffe) ? 4 : 2; + out_idx = out_size_idx(*out_index_size); + + if ((hw_mask & (1<<prim)) && + (in_pv == out_pv)) { + + *out_generate = generate[out_idx][in_pv][out_pv][PIPE_PRIM_POINTS]; + *out_prim = prim; + *out_nr = nr; + return U_GENERATE_LINEAR; + } + else { + switch (prim) { + case PIPE_PRIM_POINTS: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_POINTS; + *out_nr = nr; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_LINES: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = nr; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_LINE_STRIP: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = (nr - 1) * 2; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_LINE_LOOP: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_LINES; + *out_nr = nr * 2; + return U_GENERATE_ONE_OFF; + + case PIPE_PRIM_TRIANGLES: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = nr; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_TRIANGLE_STRIP: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_TRIANGLE_FAN: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_QUADS: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr / 4) * 6; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_QUAD_STRIP: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + return U_GENERATE_REUSABLE; + + case PIPE_PRIM_POLYGON: + *out_generate = generate[out_idx][in_pv][out_pv][prim]; + *out_prim = PIPE_PRIM_TRIANGLES; + *out_nr = (nr - 2) * 3; + return U_GENERATE_REUSABLE; + + default: + assert(0); + *out_generate = generate[out_idx][in_pv][out_pv][PIPE_PRIM_POINTS]; + *out_prim = PIPE_PRIM_POINTS; + *out_nr = nr; + return U_TRANSLATE_ERROR; + } + } +} |