diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2007-10-27 09:32:50 -0600 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2007-10-27 09:32:50 -0600 |
| commit | 6ada4e3a69476ed086955fe4060b894559e1eb95 (patch) | |
| tree | 90f876131c359de27766c21bcf38fb0106d54519 /src/mesa/pipe | |
| parent | f6a73c3f2815c4c84563c186bba6c8e67bb42ae9 (diff) | |
Comments about texture instructions and the src regs
Diffstat (limited to 'src/mesa/pipe')
| -rw-r--r-- | src/mesa/pipe/tgsi/exec/tgsi_exec.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/src/mesa/pipe/tgsi/exec/tgsi_exec.c b/src/mesa/pipe/tgsi/exec/tgsi_exec.c index f577f004d7..d98f46cc0d 100644 --- a/src/mesa/pipe/tgsi/exec/tgsi_exec.c +++ b/src/mesa/pipe/tgsi/exec/tgsi_exec.c @@ -1996,15 +1996,15 @@ exec_instruction( case TGSI_OPCODE_TEX: /* simple texture lookup */ - /* src[0] is the texcoord */ - /* src[1] is the sampler unit */ + /* src[0] = texcoord */ + /* src[1] = sampler unit */ exec_tex(mach, inst, FALSE); break; case TGSI_OPCODE_TXB: /* Texture lookup with lod bias */ - /* src[0] is the texcoord (src[0].w = load bias) */ - /* src[1] is the sampler unit */ + /* src[0] = texcoord (src[0].w = load bias) */ + /* src[1] = sampler unit */ exec_tex(mach, inst, TRUE); break; @@ -2013,9 +2013,17 @@ exec_instruction( /* src[0] = texcoord */ /* src[1] = d[strq]/dx */ /* src[2] = d[strq]/dy */ + /* src[3] = sampler unit */ assert (0); break; + case TGSI_OPCODE_TXL: + /* Texture lookup with explit LOD */ + /* src[0] = texcoord (src[0].w = load bias) */ + /* src[1] = sampler unit */ + exec_tex(mach, inst, TRUE); + break; + case TGSI_OPCODE_UP2H: assert (0); break; @@ -2157,10 +2165,6 @@ exec_instruction( } break; - case TGSI_OPCODE_TXL: - assert (0); - break; - case TGSI_OPCODE_IF: /* push CondMask */ assert(mach->CondStackTop < TGSI_EXEC_MAX_COND_NESTING); |