diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-11-07 09:41:00 -0700 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-11-07 09:51:25 -0700 |
| commit | 65cb74ecc0287d766493fd3649295e2e1b20099b (patch) | |
| tree | d277ee691c80a00d96b399090806f2ac86718e06 /src/mesa/shader/prog_execute.c | |
| parent | 37eef7b474c5d9a7c566f9edf35c797c5a98d065 (diff) | |
mesa: added DP2, DP2A instructions
Diffstat (limited to 'src/mesa/shader/prog_execute.c')
| -rw-r--r-- | src/mesa/shader/prog_execute.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c index b47421d5a1..ef17ed128a 100644 --- a/src/mesa/shader/prog_execute.c +++ b/src/mesa/shader/prog_execute.c @@ -776,6 +776,33 @@ _mesa_execute_program(GLcontext * ctx, store_vector4(inst, machine, result); } break; + case OPCODE_DP2: + { + GLfloat a[4], b[4], result[4]; + fetch_vector4(&inst->SrcReg[0], machine, a); + fetch_vector4(&inst->SrcReg[1], machine, b); + result[0] = result[1] = result[2] = result[3] = DOT2(a, b); + store_vector4(inst, machine, result); + if (DEBUG_PROG) { + printf("DP2 %g = (%g %g) . (%g %g)\n", + result[0], a[0], a[1], b[0], b[1]); + } + } + break; + case OPCODE_DP2A: + { + GLfloat a[4], b[4], c, result[4]; + fetch_vector4(&inst->SrcReg[0], machine, a); + fetch_vector4(&inst->SrcReg[1], machine, b); + fetch_vector1(&inst->SrcReg[1], machine, &c); + result[0] = result[1] = result[2] = result[3] = DOT2(a, b) + c; + store_vector4(inst, machine, result); + if (DEBUG_PROG) { + printf("DP2A %g = (%g %g) . (%g %g) + %g\n", + result[0], a[0], a[1], b[0], b[1], c); + } + } + break; case OPCODE_DP3: { GLfloat a[4], b[4], result[4]; @@ -808,8 +835,7 @@ _mesa_execute_program(GLcontext * ctx, GLfloat a[4], b[4], result[4]; fetch_vector4(&inst->SrcReg[0], machine, a); fetch_vector4(&inst->SrcReg[1], machine, b); - result[0] = result[1] = result[2] = result[3] = - a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + b[3]; + result[0] = result[1] = result[2] = result[3] = DOT3(a, b) + b[3]; store_vector4(inst, machine, result); } break; |