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cabc_test.c
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cabc_test.c
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#include <assert.h>
#include <errno.h>
#include <getopt.h>
#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#define FLAG_GAMMA 'a'
#define FLAG_MODE 'm'
#define FLAG_STAGE_UP 'u'
#define FLAG_STAGE_DOWN 'd'
#define FLAG_GLOBAL_DN 'g'
#define FLAG_CALC_PIXEL_NUM 'p'
#define FLAG_CRTC 'c'
#define FLAG_HELP 'h'
#define FLAG_LIST 'l'
struct object {
int value;
int id;
int changed;
};
const char *const short_options = "hla:m:u:d:g:c:p:";
struct option long_options[] = {
{ "help", no_argument, NULL, 'h' },
{ "list", no_argument, NULL, 'l' },
{ "crtc", required_argument, NULL, 'c' },
{ "gamma", required_argument, NULL, 'a' },
{ "mode", required_argument, NULL, 'm' },
{ "stage_up", required_argument, NULL, 'u' },
{ "stage_down", required_argument, NULL, 'd' },
{ "global_dn", required_argument, NULL, 'g' },
{ "calc_pixel_num", required_argument, NULL, 'p' },
{ 0, 0, 0, 0},
};
/* dump_blob and dump_prop shamelessly copied from ../modetest/modetest.c */
static void
dump_blob(int fd, uint32_t blob_id)
{
uint32_t i;
unsigned char *blob_data;
drmModePropertyBlobPtr blob;
blob = drmModeGetPropertyBlob(fd, blob_id);
if (!blob) {
printf("\n");
return;
}
blob_data = blob->data;
for (i = 0; i < blob->length; i++) {
if (i % 16 == 0)
printf("\n\t\t\t");
printf("%.2hhx", blob_data[i]);
}
printf("\n");
drmModeFreePropertyBlob(blob);
}
static void
dump_prop(int fd, uint32_t prop_id, uint64_t value)
{
int i;
drmModePropertyPtr prop;
prop = drmModeGetProperty(fd, prop_id);
printf("\t%d", prop_id);
if (!prop) {
printf("\n");
return;
}
printf(" %s:", prop->name);
printf(" flags:");
if (prop->flags & DRM_MODE_PROP_PENDING)
printf(" pending");
if (prop->flags & DRM_MODE_PROP_IMMUTABLE)
printf(" immutable");
if (drm_property_type_is(prop, DRM_MODE_PROP_SIGNED_RANGE))
printf(" signed range");
if (drm_property_type_is(prop, DRM_MODE_PROP_RANGE))
printf(" range");
if (drm_property_type_is(prop, DRM_MODE_PROP_ENUM))
printf(" enum");
if (drm_property_type_is(prop, DRM_MODE_PROP_BITMASK))
printf(" bitmask");
if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB))
printf(" blob");
if (drm_property_type_is(prop, DRM_MODE_PROP_OBJECT))
printf(" object");
printf("\n");
if (drm_property_type_is(prop, DRM_MODE_PROP_RANGE)) {
printf("\t\tvalues:");
for (i = 0; i < prop->count_values; i++)
printf(" %"PRIu64, prop->values[i]);
printf("\n");
}
if (drm_property_type_is(prop, DRM_MODE_PROP_ENUM)) {
printf("\t\tenums:");
for (i = 0; i < prop->count_enums; i++)
printf(" %s=%llu", prop->enums[i].name,
prop->enums[i].value);
printf("\n");
} else if (drm_property_type_is(prop, DRM_MODE_PROP_BITMASK)) {
printf("\t\tvalues:");
for (i = 0; i < prop->count_enums; i++)
printf(" %s=0x%llx", prop->enums[i].name,
(1LL << prop->enums[i].value));
printf("\n");
} else {
assert(prop->count_enums == 0);
}
if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB)) {
printf("\t\tblobs:\n");
for (i = 0; i < prop->count_blobs; i++)
dump_blob(fd, prop->blob_ids[i]);
printf("\n");
} else {
assert(prop->count_blobs == 0);
}
printf("\t\tvalue:");
if (drm_property_type_is(prop, DRM_MODE_PROP_BLOB))
dump_blob(fd, value);
else if (drm_property_type_is(prop, DRM_MODE_PROP_SIGNED_RANGE))
printf(" %"PRId64"\n", value);
else
printf(" %"PRIu64"\n", value);
drmModeFreeProperty(prop);
}
void help(void)
{
printf(
"cabc test\n"
"command line options:\n\n"
" -h or --help - this\n"
" -a or --gamma=[float] - set pow(gamma) gamma table with gamma=f\n"
" -m or --mode=[0 1 2 3] - cabc mode\n"
" 0 - disabled cabc\n"
" 1 - Predefine cabc normal mode\n"
" 2 - Predefine cabc lowpower mode\n"
" 3 - userspace mode\n"
" -u or --stage_up=[0-511] - set cabc stage up\n"
" -d or --stage_down=[0-255] - set cabc stage down\n"
" -g or --global_dn=[0-255] - set cabc global_dn\n"
" -p or --calc_pixel_num=[0 - 1000] - percent of number calc pixel\n"
" -c or --crtc=[object_id] - crtc index\n"
" -l or --list - show current cabc state\n");
}
#define CABC_LUT_LENGTH 128
int generate_cabc_lut_blob_from_gamma(int fd, float gamma)
{
struct drm_mode_create_blob create_blob;
uint32_t lut[CABC_LUT_LENGTH];
int i, ret;
for (i = 0; i < CABC_LUT_LENGTH; i++)
lut[i] = pow(1.0 * (i + 128) / 255, gamma) * 4095 + 0.5;
memset(&create_blob, 0, sizeof(create_blob));
create_blob.length = CABC_LUT_LENGTH * sizeof(uint32_t);
create_blob.data = (uint64_t)lut;
ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATEPROPBLOB, &create_blob);
if (ret) {
fprintf(stderr, "Failed to create mode property blob %d\n", ret);
return ret;
}
return create_blob.blob_id;
}
int main(int argc, char **argv)
{
drmModeResPtr res;
drmModeCrtcPtr crtc = NULL;
struct object cabc_lut, cabc_mode, stage_up, stage_down;
struct object global_dn, calc_pixel_num;
int crtc_index = 0;
drmModeAtomicReq *req;
uint32_t flags = 0;
int i, fd, ret;
int list_state = 0;
float gamma;
memset(&cabc_lut, 0, sizeof(struct object));
memset(&cabc_mode, 0, sizeof(struct object));
memset(&stage_up, 0, sizeof(struct object));
memset(&stage_down, 0, sizeof(struct object));
memset(&global_dn, 0, sizeof(struct object));
memset(&calc_pixel_num, 0, sizeof(struct object));
if (argc < 2)
help();
for (;;) {
int c = getopt_long(argc, argv, short_options, long_options, NULL);
if (c == -1)
break;
switch (c) {
case FLAG_HELP:
help();
return 0;
case FLAG_LIST:
list_state = 1;
break;
case FLAG_CRTC:
crtc_index = strtoul(optarg, NULL, 0);
break;
case FLAG_GAMMA:
gamma = strtof(optarg, NULL);
cabc_lut.changed = 1;
break;
case FLAG_MODE:
cabc_mode.value = strtoul(optarg, NULL, 0);
cabc_mode.changed = 1;
break;
case FLAG_STAGE_UP:
stage_up.value = strtoul(optarg, NULL, 0);
stage_up.changed = 1;
break;
case FLAG_STAGE_DOWN:
stage_down.value = strtoul(optarg, NULL, 0);
stage_down.changed = 1;
break;
case FLAG_GLOBAL_DN:
global_dn.value = strtoul(optarg, NULL, 0);
global_dn.changed = 1;
break;
case FLAG_CALC_PIXEL_NUM:
calc_pixel_num.value = strtoul(optarg, NULL, 0);
calc_pixel_num.changed = 1;
break;
}
}
fd = drmOpen("rockchip", NULL);
if (fd < 0) {
fprintf(stderr, "failed to open rockchip drm: %s\n",
strerror(errno));
return fd;
}
ret = drmSetClientCap(fd, DRM_CLIENT_CAP_ATOMIC, 1);
if (ret) {
fprintf(stderr, "Failed to set atomic cap %s", strerror(errno));
return ret;
}
if (cabc_lut.changed) {
cabc_lut.value = generate_cabc_lut_blob_from_gamma(fd, gamma);
if (cabc_lut.value < 0)
return cabc_lut.value;
}
res = drmModeGetResources(fd);
if (!res) {
fprintf(stderr, "Failed to get resources: %s\n",
strerror(errno));
return -ENODEV;
}
for (i = 0; i < res->count_crtcs; ++i) {
drmModeObjectPropertiesPtr props;
drmModePropertyPtr prop;
uint32_t j;
crtc = drmModeGetCrtc(fd, res->crtcs[i]);
if (!crtc) {
fprintf(stderr, "Could not get crtc %u: %s\n",
res->crtcs[i], strerror(errno));
continue;
}
if (crtc_index != i)
continue;
props = drmModeObjectGetProperties(fd, crtc->crtc_id,
DRM_MODE_OBJECT_CRTC);
if (!props) {
fprintf(stderr, "failed to found props crtc[%d] %s\n",
crtc->crtc_id, strerror(errno));
continue;
}
for (j = 0; j < props->count_props; j++) {
prop = drmModeGetProperty(fd, props->props[j]);
if (!strcmp(prop->name, "CABC_LUT"))
cabc_lut.id = prop->prop_id;
else if (!strcmp(prop->name, "CABC_MODE"))
cabc_mode.id = prop->prop_id;
else if (!strcmp(prop->name, "CABC_STAGE_UP"))
stage_up.id = prop->prop_id;
else if (!strcmp(prop->name, "CABC_STAGE_DOWN"))
stage_down.id = prop->prop_id;
else if (!strcmp(prop->name, "CABC_GLOBAL_DN"))
global_dn.id = prop->prop_id;
else if (!strcmp(prop->name, "CABC_CALC_PIXEL_NUM"))
calc_pixel_num.id = prop->prop_id;
else
continue;
if (list_state)
dump_prop(fd, prop->prop_id, props->prop_values[j]);
}
break;
}
if (i == res->count_crtcs) {
fprintf(stderr, "failed to find usable crtc props\n");
return -ENODEV;
}
if (list_state)
return 0;
req = drmModeAtomicAlloc();
#define DRM_ATOMIC_ADD_PROP(object_id, object) \
if (object.changed && object.id) { \
ret = drmModeAtomicAddProperty(req, object_id, object.id, object.value); \
if (ret < 0) { \
fprintf(stderr, "Failed to add prop[%d] to [%d]", object.id, object_id); \
goto out; \
} \
}
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, cabc_mode);
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, cabc_lut);
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, stage_up);
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, stage_down);
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, global_dn);
DRM_ATOMIC_ADD_PROP(crtc->crtc_id, calc_pixel_num);
flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
ret = drmModeAtomicCommit(fd, req, flags, NULL);
if (ret)
fprintf(stderr, "atomic: couldn't commit new state: %s\n", strerror(errno));
out:
drmModeAtomicFree(req);
return ret;
}