string_buffer(void* mem_ctx)
{
m_Capacity = 512;
m_Ptr = (char*)ralloc_size(mem_ctx, m_Capacity);
m_Size = 0;
m_Ptr[0] = 0;
}
void
vc4_init_cl(struct vc4_context *vc4, struct vc4_cl *cl)
{
cl->base = ralloc_size(vc4, 1);
cl->next = cl->base;
cl->size = 0;
}
glsl_type::glsl_type(const glsl_type *array, unsigned length) :
base_type(GLSL_TYPE_ARRAY),
sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
sampler_type(0),
vector_elements(0), matrix_columns(0),
name(NULL), length(length)
{
this->fields.array = array;
/* Inherit the gl type of the base. The GL type is used for
* uniform/statevar handling in Mesa and the arrayness of the type
* is represented by the size rather than the type.
*/
this->gl_type = array->gl_type;
/* Allow a maximum of 10 characters for the array size. This is enough
* for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
* NUL.
*/
const unsigned name_length = (unsigned)strlen(array->name) + 10 + 3;
char *const n = (char *) ralloc_size(this->mem_ctx, name_length);
if (length == 0)
snprintf(n, name_length, "%s[]", array->name);
else
snprintf(n, name_length, "%s[%u]", array->name, length);
this->name = n;
}
static void
copy_blob_to_driver_cache_blob(struct blob *blob, struct gl_program *prog)
{
prog->driver_cache_blob = ralloc_size(NULL, blob->size);
memcpy(prog->driver_cache_blob, blob->data, blob->size);
prog->driver_cache_blob_size = blob->size;
}
/* Callers of this ralloc-based new need not call delete. It's
* easier to just ralloc_free 'ctx' (or any of its ancestors). */
static void* operator new(size_t size, void *ctx)
{
void *node;
node = ralloc_size(ctx, size);
check(node != NULL);
return node;
}
static struct keybox *
make_keybox(void *mem_ctx,
enum iris_program_cache_id cache_id,
const void *key,
uint32_t key_size)
{
struct keybox *keybox =
ralloc_size(mem_ctx, sizeof(struct keybox) + key_size);
keybox->cache_id = cache_id;
keybox->size = key_size;
memcpy(keybox->data, key, key_size);
return keybox;
}
static struct vtn_access_chain *
vtn_access_chain_extend(struct vtn_builder *b, struct vtn_access_chain *old,
unsigned new_ids)
{
struct vtn_access_chain *chain;
unsigned new_len = old->length + new_ids;
chain = ralloc_size(b, sizeof(*chain) + new_len * sizeof(chain->link[0]));
chain->var = old->var;
chain->length = new_len;
for (unsigned i = 0; i < old->length; i++)
chain->link[i] = old->link[i];
return chain;
}
/* Test that we can read and write some large objects, (exercising the code in
* the blob_write functions to realloc blob->data.
*/
static void
test_big_objects(void)
{
void *ctx = ralloc_context(NULL);
struct blob blob;
struct blob_reader reader;
int size = 1000;
int count = 1000;
size_t i;
char *buf;
blob_init(&blob);
/* Initialize our buffer. */
buf = ralloc_size(ctx, size);
for (i = 0; i < size; i++) {
buf[i] = i % 256;
}
/* Write it many times. */
for (i = 0; i < count; i++) {
blob_write_bytes(&blob, buf, size);
}
blob_reader_init(&reader, blob.data, blob.size);
/* Read and verify it many times. */
for (i = 0; i < count; i++) {
expect_equal_bytes((uint8_t *) buf, blob_read_bytes(&reader, size), size,
"read of large objects");
}
expect_equal(reader.end - reader.data, reader.current - reader.data,
"number of bytes read reading large objects");
expect_equal(false, reader.overrun,
"overrun flag not set reading large objects");
blob_finish(&blob);
ralloc_free(ctx);
}
static void
brw_track_state_batch(struct brw_context *brw,
enum state_struct_type type,
uint32_t offset,
int size)
{
struct intel_batchbuffer *batch = &brw->intel.batch;
if (!brw->state_batch_list) {
/* Our structs are always aligned to at least 32 bytes, so
* our array doesn't need to be any larger
*/
brw->state_batch_list = ralloc_size(brw, sizeof(*brw->state_batch_list) *
batch->bo->size / 32);
}
brw->state_batch_list[brw->state_batch_count].offset = offset;
brw->state_batch_list[brw->state_batch_count].size = size;
brw->state_batch_list[brw->state_batch_count].type = type;
brw->state_batch_count++;
}
glsl_type::glsl_type(const glsl_type *array, unsigned length) :
base_type(GLSL_TYPE_ARRAY),
sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
sampler_type(0), interface_packing(0),
vector_elements(0), matrix_columns(0),
name(NULL), length(length)
{
this->fields.array = array;
/* Inherit the gl type of the base. The GL type is used for
* uniform/statevar handling in Mesa and the arrayness of the type
* is represented by the size rather than the type.
*/
this->gl_type = array->gl_type;
/* Allow a maximum of 10 characters for the array size. This is enough
* for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
* NUL.
*/
const unsigned name_length = (unsigned)strlen(array->name) + 10 + 3;
char *const n = (char *) ralloc_size(this->mem_ctx, name_length);
if (length == 0)
snprintf(n, name_length, "%s[]", array->name);
else {
/* insert outermost dimensions in the correct spot
* otherwise the dimension order will be backwards
*/
const char *pos = strchr(array->name, '[');
if (pos) {
int idx = pos - array->name;
snprintf(n, idx+1, "%s", array->name);
snprintf(n + idx, name_length - idx, "[%u]%s",
length, array->name + idx);
} else {
snprintf(n, name_length, "%s[%u]", array->name, length);
}
}
this->name = n;
}
void
vc4_simulator_init(struct vc4_screen *screen)
{
screen->simulator_mem_size = 256 * 1024 * 1024;
screen->simulator_mem_base = ralloc_size(screen,
screen->simulator_mem_size);
/* We supply our own memory so that we can have more aperture
* available (256MB instead of simpenrose's default 64MB).
*/
simpenrose_init_hardware_supply_mem(screen->simulator_mem_base,
screen->simulator_mem_size);
/* Carve out low memory for tile allocation overflow. The kernel
* should be automatically handling overflow memory setup on real
* hardware, but for simulation we just get one shot to set up enough
* overflow memory before execution. This overflow mem will be used
* up over the whole lifetime of simpenrose (not reused on each
* flush), so it had better be big.
*/
simpenrose_supply_overflow_mem(0, OVERFLOW_SIZE);
}
glsl_type::glsl_type(const glsl_type *array, unsigned length) :
base_type(GLSL_TYPE_ARRAY),
sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
inner_type(0),
vector_elements(0), matrix_columns(0),
name(NULL), length(length), patch_length(0)
{
this->fields.array = array;
/* Allow a maximum of 10 characters for the array size. This is enough
* for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
* NUL.
*/
const size_t name_length = strlen(array->name) + 10 + 3;
char *const n = (char *)ralloc_size(this->mem_ctx, name_length);
if (length == 0)
snprintf(n, name_length, "%s[]", array->name);
else
snprintf(n, name_length, "%s[%u]", array->name, length);
this->name = n;
}
/* Callers of this ralloc-based new need not call delete. It's
* easier to just ralloc_free 'ctx' (or any of its ancestors). */
static void* operator new(size_t size, void *ctx)
{
void *entry = ralloc_size(ctx, size);
assert(entry != NULL);
return entry;
}
static SolarSystem *load_from_config(ALLEGRO_CONFIG *cfg)
{
SolarSystem *solsys;
char **primary_names;
const char *name;
long num_bodies;
ALLEGRO_CONFIG_SECTION *sec;
int i;
/* First pass: Determine the number of bodies in the file */
num_bodies = 0;
sec = NULL;
while ((name = get_next_config_section(cfg, &sec)) != NULL)
{
if (name[0] != '\0')
num_bodies++;
}
if (num_bodies == 0)
return NULL; /* Empty solarsystem */
solsys = ralloc_size(NULL, sizeof(SolarSystem) + num_bodies*sizeof(Body));
if (solsys == NULL)
return NULL;
solsys->num_bodies = num_bodies;
primary_names = ralloc_array(solsys, char *, num_bodies);
if (primary_names == NULL)
{
ralloc_free(solsys);
return NULL;
}
/* Second pass: Load all celestial bodies */
i = 0;
sec = NULL;
while ((name = get_next_config_section(cfg, &sec)) != NULL && i < num_bodies)
{
if (name[0] == '\0')
continue;
solsys->body[i].ctx = solsys;
if (!load_body(cfg, name, &solsys->body[i], &primary_names[i]))
{
log_err("Couldn't load body %s\n", name);
ralloc_free(solsys);
return NULL;
}
i++;
}
if (i < num_bodies)
log_err("Internal consistency error\n");
/* Third pass: Connect each satellite body to its primary */
for (i = 0; i < num_bodies; i++)
{
Body *body = &solsys->body[i];
char *primary_name = primary_names[i];
if (primary_name == NULL) /* Independent body */
continue;
/* Look for the primary */
body->primary = NULL;
for (int j = 0; j < num_bodies; j++)
{
Body *body2 = &solsys->body[j];
if (strcmp(primary_name, body2->name) == 0)
{
body->primary = body2;
break;
}
}
if (body->primary == NULL)
{
log_err("Couldn't find %s's primary: %s\n", body->name,
primary_name);
ralloc_free(solsys);
return NULL;
}
ralloc_free(primary_name);
primary_name = NULL; /* Won't ever be used again */
body->primary->num_satellites++;
body->primary->satellite = reralloc(solsys, body->primary->satellite,
Body *, body->primary->num_satellites);
if (body->primary->satellite == NULL)
{
log_err("Out of memory\n");
ralloc_free(solsys);
return NULL;
}
body->primary->satellite[body->primary->num_satellites - 1] = body;
body->orbit.epoch = 0;
body->orbit.period = M_TWO_PI *
sqrt(CUBE(body->orbit.SMa) / body->primary->grav_param);
body->orbit.plane_orientation = quat_euler(RAD(body->orbit.LAN),
RAD(body->orbit.Inc),
RAD(body->orbit.APe));
}
ralloc_free(primary_names);
return solsys;
}
/* simple allocator to carve allocations out of an up-front allocated heap,
* so that we can free everything easily in one shot.
*/
void * ir3_alloc(struct ir3 *shader, int sz)
{
return ralloc_size(shader, sz);
}
struct program_cache *
cache_create(void)
{
void *local;
struct program_cache *cache = NULL;
char *path, *max_size_str;
uint64_t max_size;
int fd = -1;
struct stat sb;
size_t size;
/* A ralloc context for transient data during this invocation. */
local = ralloc_context(NULL);
if (local == NULL)
goto fail;
/* At user request, disable shader cache entirely. */
if (getenv("MESA_GLSL_CACHE_DISABLE"))
goto fail;
/* Determine path for cache based on the first defined name as follows:
*
* $MESA_GLSL_CACHE_DIR
* $XDG_CACHE_HOME/mesa
* <pwd.pw_dir>/.cache/mesa
*/
path = getenv("MESA_GLSL_CACHE_DIR");
if (path && mkdir_if_needed(path) == -1) {
goto fail;
}
if (path == NULL) {
char *xdg_cache_home = getenv("XDG_CACHE_HOME");
if (xdg_cache_home) {
if (mkdir_if_needed(xdg_cache_home) == -1)
goto fail;
path = concatenate_and_mkdir(local, xdg_cache_home, "mesa");
if (path == NULL)
goto fail;
}
}
if (path == NULL) {
char *buf;
size_t buf_size;
struct passwd pwd, *result;
buf_size = sysconf(_SC_GETPW_R_SIZE_MAX);
if (buf_size == -1)
buf_size = 512;
/* Loop until buf_size is large enough to query the directory */
while (1) {
buf = ralloc_size(local, buf_size);
getpwuid_r(getuid(), &pwd, buf, buf_size, &result);
if (result)
break;
if (errno == ERANGE) {
ralloc_free(buf);
buf = NULL;
buf_size *= 2;
} else {
goto fail;
}
}
path = concatenate_and_mkdir(local, pwd.pw_dir, ".cache");
if (path == NULL)
goto fail;
path = concatenate_and_mkdir(local, path, "mesa");
if (path == NULL)
goto fail;
}
cache = ralloc(NULL, struct program_cache);
if (cache == NULL)
goto fail;
cache->path = ralloc_strdup(cache, path);
if (cache->path == NULL)
goto fail;
path = ralloc_asprintf(local, "%s/index", cache->path);
if (path == NULL)
goto fail;
fd = open(path, O_RDWR | O_CREAT | O_CLOEXEC, 0644);
if (fd == -1)
goto fail;
if (fstat(fd, &sb) == -1)
goto fail;
/* Force the index file to be the expected size. */
size = sizeof(*cache->size) + CACHE_INDEX_MAX_KEYS * CACHE_KEY_SIZE;
if (sb.st_size != size) {
if (ftruncate(fd, size) == -1)
goto fail;
}
/* We map this shared so that other processes see updates that we
* make.
*
* Note: We do use atomic addition to ensure that multiple
* processes don't scramble the cache size recorded in the
* index. But we don't use any locking to prevent multiple
* processes from updating the same entry simultaneously. The idea
* is that if either result lands entirely in the index, then
* that's equivalent to a well-ordered write followed by an
* eviction and a write. On the other hand, if the simultaneous
* writes result in a corrupt entry, that's not really any
* different than both entries being evicted, (since within the
* guarantees of the cryptographic hash, a corrupt entry is
* unlikely to ever match a real cache key).
*/
cache->index_mmap = mmap(NULL, size, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
if (cache->index_mmap == MAP_FAILED)
goto fail;
cache->index_mmap_size = size;
close(fd);
cache->size = (uint64_t *) cache->index_mmap;
cache->stored_keys = cache->index_mmap + sizeof(uint64_t);
max_size = 0;
max_size_str = getenv("MESA_GLSL_CACHE_MAX_SIZE");
if (max_size_str) {
char *end;
max_size = strtoul(max_size_str, &end, 10);
if (end == max_size_str) {
max_size = 0;
} else {
while (*end && isspace(*end))
end++;
switch (*end) {
case 'K':
case 'k':
max_size *= 1024;
break;
case 'M':
case 'm':
max_size *= 1024*1024;
break;
case '\0':
case 'G':
case 'g':
default:
max_size *= 1024*1024*1024;
break;
}
}
}
/* Default to 1GB for maximum cache size. */
if (max_size == 0)
max_size = 1024*1024*1024;
cache->max_size = max_size;
ralloc_free(local);
return cache;
fail:
if (fd != -1)
close(fd);
if (cache)
ralloc_free(cache);
ralloc_free(local);
return NULL;
}
