diff options
Diffstat (limited to 'src/mesa/shader/prog_execute.c')
| -rw-r--r-- | src/mesa/shader/prog_execute.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c index d843761723b..c0173d369e5 100644 --- a/src/mesa/shader/prog_execute.c +++ b/src/mesa/shader/prog_execute.c @@ -1019,6 +1019,36 @@ _mesa_execute_program(GLcontext * ctx, break; case OPCODE_NOP: break; + case OPCODE_NRM3: /* 3-component normalization */ + { + GLfloat a[4], result[4]; + GLfloat tmp; + fetch_vector4(&inst->SrcReg[0], machine, a); + tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2]; + if (tmp != 0.0F) + tmp = 1.0F / tmp; + result[0] = tmp * a[0]; + result[1] = tmp * a[1]; + result[2] = tmp * a[2]; + result[3] = 0.0; /* undefined, but prevent valgrind warnings */ + store_vector4(inst, machine, result); + } + break; + case OPCODE_NRM4: /* 4-component normalization */ + { + GLfloat a[4], result[4]; + GLfloat tmp; + fetch_vector4(&inst->SrcReg[0], machine, a); + tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2] + a[3] * a[3]; + if (tmp != 0.0F) + tmp = 1.0F / tmp; + result[0] = tmp * a[0]; + result[1] = tmp * a[1]; + result[2] = tmp * a[2]; + result[3] = tmp * a[3]; + store_vector4(inst, machine, result); + } + break; case OPCODE_PK2H: /* pack two 16-bit floats in one 32-bit float */ { GLfloat a[4], result[4]; @@ -1277,6 +1307,17 @@ _mesa_execute_program(GLcontext * ctx, } } break; + case OPCODE_SSG: /* set sign (-1, 0 or +1) */ + { + GLfloat a[4], result[4]; + fetch_vector4(&inst->SrcReg[0], machine, a); + result[0] = (GLfloat) ((a[0] > 0.0F) - (a[0] < 0.0F)); + result[1] = (GLfloat) ((a[1] > 0.0F) - (a[1] < 0.0F)); + result[2] = (GLfloat) ((a[2] > 0.0F) - (a[2] < 0.0F)); + result[3] = (GLfloat) ((a[3] > 0.0F) - (a[3] < 0.0F)); + store_vector4(inst, machine, result); + } + break; case OPCODE_STR: /* set true, operands ignored */ { static const GLfloat result[4] = { 1.0F, 1.0F, 1.0F, 1.0F }; |