fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-08 17:48:10 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

glsl/tests: Verify geometry shader built-ins generated by _mesa_glsl_initialize_variables

Browse source 
Checks that the variables generated meet certain criteria.

 - Geometry shader inputs have an explicit location.

 - Geometry shader outputs have an explicit location.

 - Fragment shader-only varying locations are not used.

 - Geometry shader uniforms and system values don't have an explicit
   location.

 - Geometry shader constants don't have an explicit location and are
   read-only.

 - No other kinds of geometry variables exist.

It does not verify that an specific variables exist.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Ian Romanick 2013-10-03 15:21:53 -07:00
parent f094a0f825
commit af229c94e3
1 changed files with 98 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

98
src/glsl/tests/builtin_variable_test.cpp
View file

@ -293,3 +293,101 @@ TEST_F(fragment_builtin, no_invalid_variable_modes)
{
common_builtin::no_invalid_variable_modes();
}
/********************************************************************/
class geometry_builtin : public common_builtin {
public:
geometry_builtin()
: common_builtin(GL_GEOMETRY_SHADER)
{
/* empty */
}
};
TEST_F(geometry_builtin, names_start_with_gl)
{
common_builtin::names_start_with_gl();
}
TEST_F(geometry_builtin, inputs_have_explicit_location)
{
foreach_list(node, &this->ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
if (var->mode != ir_var_shader_in)
continue;
if (var->is_interface_instance()) {
EXPECT_STREQ("gl_in", var->name);
EXPECT_FALSE(var->explicit_location);
EXPECT_EQ(-1, var->location);
ASSERT_TRUE(var->type->is_array());
const glsl_type *const instance_type = var->type->fields.array;
for (unsigned i = 0; i < instance_type->length; i++) {
const glsl_struct_field *const input =
&instance_type->fields.structure[i];
string_starts_with_prefix(input->name, "gl_");
EXPECT_NE(-1, input->location);
EXPECT_GT(VARYING_SLOT_VAR0, input->location);
/* Several varyings only exist in the fragment shader. Be sure
* that no inputs with these locations exist.
*/
EXPECT_NE(VARYING_SLOT_PNTC, input->location);
EXPECT_NE(VARYING_SLOT_FACE, input->location);
}
} else {
EXPECT_TRUE(var->explicit_location);
EXPECT_NE(-1, var->location);
EXPECT_GT(VARYING_SLOT_VAR0, var->location);
EXPECT_EQ(0u, var->location_frac);
}
/* Several varyings only exist in the fragment shader. Be sure that no
* inputs with these locations exist.
*/
EXPECT_NE(VARYING_SLOT_PNTC, var->location);
EXPECT_NE(VARYING_SLOT_FACE, var->location);
}
}
TEST_F(geometry_builtin, outputs_have_explicit_location)
{
foreach_list(node, &this->ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
if (var->mode != ir_var_shader_out)
continue;
EXPECT_TRUE(var->explicit_location);
EXPECT_NE(-1, var->location);
EXPECT_GT(VARYING_SLOT_VAR0, var->location);
EXPECT_EQ(0u, var->location_frac);
/* Several varyings only exist in the fragment shader. Be sure that no
* outputs with these locations exist.
*/
EXPECT_NE(VARYING_SLOT_PNTC, var->location);
EXPECT_NE(VARYING_SLOT_FACE, var->location);
}
}
TEST_F(geometry_builtin, uniforms_and_system_values_dont_have_explicit_location)
{
common_builtin::uniforms_and_system_values_dont_have_explicit_location();
}
TEST_F(geometry_builtin, constants_are_constant)
{
common_builtin::constants_are_constant();
}
TEST_F(geometry_builtin, no_invalid_variable_modes)
{
common_builtin::no_invalid_variable_modes();
}