diff options
Diffstat (limited to 'src/mesa/shader/prog_execute.c')
| -rw-r--r-- | src/mesa/shader/prog_execute.c | 62 |
1 files changed, 36 insertions, 26 deletions
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c index bdac1d4f8a..f4beb9a78b 100644 --- a/src/mesa/shader/prog_execute.c +++ b/src/mesa/shader/prog_execute.c @@ -212,24 +212,26 @@ fetch_vector4(const struct prog_src_register *source, result[3] = src[GET_SWZ(source->Swizzle, 3)]; } - if (source->NegateBase) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } if (source->Abs) { result[0] = FABSF(result[0]); result[1] = FABSF(result[1]); result[2] = FABSF(result[2]); result[3] = FABSF(result[3]); } - if (source->NegateAbs) { + if (source->Negate) { + ASSERT(source->Negate == NEGATE_XYZW); result[0] = -result[0]; result[1] = -result[1]; result[2] = -result[2]; result[3] = -result[3]; } + +#ifdef NAN_CHECK + assert(!IS_INF_OR_NAN(result[0])); + assert(!IS_INF_OR_NAN(result[0])); + assert(!IS_INF_OR_NAN(result[0])); + assert(!IS_INF_OR_NAN(result[0])); +#endif } @@ -259,7 +261,7 @@ fetch_vector4ui(const struct prog_src_register *source, result[3] = src[GET_SWZ(source->Swizzle, 3)]; } - /* Note: no NegateBase, Abs, NegateAbs here */ + /* Note: no Negate or Abs here */ } @@ -299,19 +301,14 @@ fetch_vector4_deriv(GLcontext * ctx, result[2] = deriv[GET_SWZ(source->Swizzle, 2)]; result[3] = deriv[GET_SWZ(source->Swizzle, 3)]; - if (source->NegateBase) { - result[0] = -result[0]; - result[1] = -result[1]; - result[2] = -result[2]; - result[3] = -result[3]; - } if (source->Abs) { result[0] = FABSF(result[0]); result[1] = FABSF(result[1]); result[2] = FABSF(result[2]); result[3] = FABSF(result[3]); } - if (source->NegateAbs) { + if (source->Negate) { + ASSERT(source->Negate == NEGATE_XYZW); result[0] = -result[0]; result[1] = -result[1]; result[2] = -result[2]; @@ -336,13 +333,10 @@ fetch_vector1(const struct prog_src_register *source, result[0] = src[GET_SWZ(source->Swizzle, 0)]; - if (source->NegateBase) { - result[0] = -result[0]; - } if (source->Abs) { result[0] = FABSF(result[0]); } - if (source->NegateAbs) { + if (source->Negate) { result[0] = -result[0]; } } @@ -492,6 +486,13 @@ store_vector4(const struct prog_instruction *inst, } } +#ifdef NAN_CHECK + assert(!IS_INF_OR_NAN(value[0])); + assert(!IS_INF_OR_NAN(value[0])); + assert(!IS_INF_OR_NAN(value[0])); + assert(!IS_INF_OR_NAN(value[0])); +#endif + if (writeMask & WRITEMASK_X) dst[0] = value[0]; if (writeMask & WRITEMASK_Y) @@ -845,10 +846,14 @@ _mesa_execute_program(GLcontext * ctx, break; case OPCODE_EX2: /* Exponential base 2 */ { - GLfloat a[4], result[4]; + GLfloat a[4], result[4], val; fetch_vector1(&inst->SrcReg[0], machine, a); - result[0] = result[1] = result[2] = result[3] = - (GLfloat) _mesa_pow(2.0, a[0]); + val = (GLfloat) _mesa_pow(2.0, a[0]); + /* + if (IS_INF_OR_NAN(val)) + val = 1.0e10; + */ + result[0] = result[1] = result[2] = result[3] = val; store_vector4(inst, machine, result); } break; @@ -924,12 +929,17 @@ _mesa_execute_program(GLcontext * ctx, break; case OPCODE_LG2: /* log base 2 */ { - GLfloat a[4], result[4]; + GLfloat a[4], result[4], val; fetch_vector1(&inst->SrcReg[0], machine, a); /* The fast LOG2 macro doesn't meet the precision requirements. */ - result[0] = result[1] = result[2] = result[3] = - (log(a[0]) * 1.442695F); + if (a[0] == 0.0F) { + val = 0.0F; + } + else { + val = log(a[0]) * 1.442695F; + } + result[0] = result[1] = result[2] = result[3] = val; store_vector4(inst, machine, result); } break; @@ -1514,7 +1524,7 @@ _mesa_execute_program(GLcontext * ctx, ASSERT(swz <= 3); result[i] = src[swz]; } - if (source->NegateBase & (1 << i)) + if (source->Negate & (1 << i)) result[i] = -result[i]; } store_vector4(inst, machine, result); |