/**
* Create some uniform storage for a program.
*
* \param prog Program to get some storage
* \param num_storage Total number of storage slots
* \param index_to_set Storage slot that will actually get a value
* \param name Name for the actual storage slot
* \param type Type for the elements of the actual storage slot
* \param array_size Size for the array of the actual storage slot. This
* should be zero for non-arrays.
*/
static unsigned
establish_uniform_storage(struct gl_shader_program *prog, unsigned num_storage,
unsigned index_to_set, const char *name,
const glsl_type *type, unsigned array_size)
{
const unsigned elements = MAX2(1, array_size);
const unsigned data_components = elements * type->components();
const unsigned total_components = MAX2(17, (data_components
+ type->components()));
const unsigned red_zone_components = total_components - data_components;
prog->UniformHash = new string_to_uint_map;
prog->UniformStorage = rzalloc_array(prog, struct gl_uniform_storage,
num_storage);
prog->NumUniformStorage = num_storage;
prog->UniformStorage[index_to_set].name = (char *) name;
prog->UniformStorage[index_to_set].type = type;
prog->UniformStorage[index_to_set].array_elements = array_size;
for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
prog->UniformStorage[index_to_set].opaque[sh].index = ~0;
prog->UniformStorage[index_to_set].opaque[sh].active = false;
}
prog->UniformStorage[index_to_set].num_driver_storage = 0;
prog->UniformStorage[index_to_set].driver_storage = NULL;
prog->UniformStorage[index_to_set].storage =
rzalloc_array(prog, union gl_constant_value, total_components);
fill_storage_array_with_sentinels(prog->UniformStorage[index_to_set].storage,
data_components,
red_zone_components);
prog->UniformHash->put(index_to_set,
prog->UniformStorage[index_to_set].name);
for (unsigned i = 0; i < num_storage; i++) {
if (i == index_to_set)
continue;
prog->UniformStorage[i].name = (char *) "invalid slot";
prog->UniformStorage[i].type = glsl_type::void_type;
prog->UniformStorage[i].array_elements = 0;
for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
prog->UniformStorage[i].opaque[sh].index = ~0;
prog->UniformStorage[i].opaque[sh].active = false;
}
prog->UniformStorage[i].num_driver_storage = 0;
prog->UniformStorage[i].driver_storage = NULL;
prog->UniformStorage[i].storage = NULL;
}
return red_zone_components;
}
/**
* Create some uniform storage for a program.
*
* \param prog Program to get some storage
* \param num_storage Total number of storage slots
* \param index_to_set Storage slot that will actually get a value
* \param name Name for the actual storage slot
* \param type Type for the elements of the actual storage slot
* \param array_size Size for the array of the actual storage slot. This
* should be zero for non-arrays.
*/
static unsigned
establish_uniform_storage(struct gl_shader_program *prog, unsigned num_storage,
unsigned index_to_set, const char *name,
const glsl_type *type, unsigned array_size)
{
const unsigned elements = MAX2(1, array_size);
const unsigned data_components = elements * type->components();
const unsigned total_components = MAX2(17, (data_components
+ type->components()));
const unsigned red_zone_components = total_components - data_components;
prog->UniformStorage = rzalloc_array(prog, struct gl_uniform_storage,
num_storage);
prog->NumUserUniformStorage = num_storage;
prog->UniformStorage[index_to_set].name = (char *) name;
prog->UniformStorage[index_to_set].type = type;
prog->UniformStorage[index_to_set].array_elements = array_size;
prog->UniformStorage[index_to_set].initialized = false;
prog->UniformStorage[index_to_set].sampler = ~0;
prog->UniformStorage[index_to_set].num_driver_storage = 0;
prog->UniformStorage[index_to_set].driver_storage = NULL;
prog->UniformStorage[index_to_set].storage =
rzalloc_array(prog, union gl_constant_value, total_components);
fill_storage_array_with_sentinels(prog->UniformStorage[index_to_set].storage,
data_components,
red_zone_components);
for (unsigned i = 0; i < num_storage; i++) {
if (i == index_to_set)
continue;
prog->UniformStorage[i].name = (char *) "invalid slot";
prog->UniformStorage[i].type = glsl_type::void_type;
prog->UniformStorage[i].array_elements = 0;
prog->UniformStorage[i].initialized = false;
prog->UniformStorage[i].sampler = ~0;
prog->UniformStorage[i].num_driver_storage = 0;
prog->UniformStorage[i].driver_storage = NULL;
prog->UniformStorage[i].storage = NULL;
}
return red_zone_components;
}
