diff options
Diffstat (limited to 'mesalib/src/glsl/ir_constant_expression.cpp')
| -rw-r--r-- | mesalib/src/glsl/ir_constant_expression.cpp | 58 |
1 files changed, 27 insertions, 31 deletions
diff --git a/mesalib/src/glsl/ir_constant_expression.cpp b/mesalib/src/glsl/ir_constant_expression.cpp index 2841fb350..2a3084896 100644 --- a/mesalib/src/glsl/ir_constant_expression.cpp +++ b/mesalib/src/glsl/ir_constant_expression.cpp @@ -288,24 +288,20 @@ ir_expression::constant_expression_value() break; case ir_unop_rcp: - /* FINISHME: Emit warning when division-by-zero is detected. */ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT); for (unsigned c = 0; c < op[0]->type->components(); c++) { switch (this->type->base_type) { case GLSL_TYPE_UINT: - if (op[0]->value.u[c] == 0.0) - return NULL; - data.u[c] = 1 / op[0]->value.u[c]; + if (op[0]->value.u[c] != 0.0) + data.u[c] = 1 / op[0]->value.u[c]; break; case GLSL_TYPE_INT: - if (op[0]->value.i[c] == 0.0) - return NULL; - data.i[c] = 1 / op[0]->value.i[c]; + if (op[0]->value.i[c] != 0.0) + data.i[c] = 1 / op[0]->value.i[c]; break; case GLSL_TYPE_FLOAT: - if (op[0]->value.f[c] == 0.0) - return NULL; - data.f[c] = 1.0F / op[0]->value.f[c]; + if (op[0]->value.f[c] != 0.0) + data.f[c] = 1.0F / op[0]->value.f[c]; break; default: assert(0); @@ -314,13 +310,9 @@ ir_expression::constant_expression_value() break; case ir_unop_rsq: - /* FINISHME: Emit warning when division-by-zero is detected. */ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT); for (unsigned c = 0; c < op[0]->type->components(); c++) { - float s = sqrtf(op[0]->value.f[c]); - if (s == 0) - return NULL; - data.f[c] = 1.0F / s; + data.f[c] = 1.0F / sqrtf(op[0]->value.f[c]); } break; @@ -523,18 +515,20 @@ ir_expression::constant_expression_value() switch (op[0]->type->base_type) { case GLSL_TYPE_UINT: - if (op[1]->value.u[c1] == 0) - return NULL; - data.u[c] = op[0]->value.u[c0] / op[1]->value.u[c1]; + if (op[1]->value.u[c1] == 0) { + data.u[c] = 0; + } else { + data.u[c] = op[0]->value.u[c0] / op[1]->value.u[c1]; + } break; case GLSL_TYPE_INT: - if (op[1]->value.i[c1] == 0) - return NULL; - data.i[c] = op[0]->value.i[c0] / op[1]->value.i[c1]; + if (op[1]->value.i[c1] == 0) { + data.i[c] = 0; + } else { + data.i[c] = op[0]->value.i[c0] / op[1]->value.i[c1]; + } break; case GLSL_TYPE_FLOAT: - if (op[1]->value.f[c1] == 0) - return NULL; data.f[c] = op[0]->value.f[c0] / op[1]->value.f[c1]; break; default: @@ -552,18 +546,20 @@ ir_expression::constant_expression_value() switch (op[0]->type->base_type) { case GLSL_TYPE_UINT: - if (op[1]->value.u[c1] == 0) - return NULL; - data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1]; + if (op[1]->value.u[c1] == 0) { + data.u[c] = 0; + } else { + data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1]; + } break; case GLSL_TYPE_INT: - if (op[1]->value.i[c1] == 0) - return NULL; - data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1]; + if (op[1]->value.i[c1] == 0) { + data.i[c] = 0; + } else { + data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1]; + } break; case GLSL_TYPE_FLOAT: - if (op[1]->value.f[c1] == 0) - return NULL; /* We don't use fmod because it rounds toward zero; GLSL specifies * the use of floor. */ |