[PATCH libdrm] tests/modetest: Add modetest_atomic tool

Benjamin Gaignard benjamin.gaignard at linaro.org
Tue Jul 24 15:08:18 UTC 2018


2018-07-23 18:30 GMT+02:00 Eric Engestrom <eric.engestrom at intel.com>:
> On Friday, 2018-07-20 13:33:29 +0200, Benjamin Gaignard wrote:
>> This is a modetest like tool but using atomic API.
>>
>> With modetest_atomic it is mandatory to specify a mode ("-s")
>> and a plane ("-P") to display a pattern on screen.
>>
>> "-v" does a loop swapping between two framebuffers for each
>> active planes.
>>
>> modetest_atomic doesn't offer cursor support
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
>> ---
>>
>> The code is based on modetest and keep most of it infrastructure
>> like arguments parsing, finding properties id from their name,
>> resources dumping or the general way of working.
>> It duplicates modetest code but adding compilation flags or
>> conditional tests everywhere in modetest would have made it
>> more complex and unreadable.
>
> I don't have an opinion on whether duplicating the test is the right
> thing, but if you do, please also duplicate the lines in
> tests/modetest/meson.build :)

You are right, I will also make it compile for Android.

>
>>
>> Creating modetest_atomic could allow to test atomic API without
>> need to use "big" frameworks like weston, drm_hwcomposer or igt
>> with all their dependencies.
>> kmscube could also be used to test atomic API but it need EGL.
>>
>> It have been tested (only) on stm driver with one or two planes
>> actived.
>>
>>  tests/modetest/Makefile.am       |   13 +-
>>  tests/modetest/Makefile.sources  |    7 +
>>  tests/modetest/modetest_atomic.c | 1546 ++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 1564 insertions(+), 2 deletions(-)
>>  create mode 100644 tests/modetest/modetest_atomic.c
>>
>> diff --git a/tests/modetest/Makefile.am b/tests/modetest/Makefile.am
>> index 4b296c83..8f697bb3 100644
>> --- a/tests/modetest/Makefile.am
>> +++ b/tests/modetest/Makefile.am
>> @@ -10,10 +10,12 @@ AM_CFLAGS += \
>>
>>  if HAVE_INSTALL_TESTS
>>  bin_PROGRAMS = \
>> -     modetest
>> +     modetest \
>> +     modetest_atomic
>>  else
>>  noinst_PROGRAMS = \
>> -     modetest
>> +     modetest \
>> +     modetest_atomic
>>  endif
>>
>>  modetest_SOURCES = $(MODETEST_FILES)
>> @@ -22,3 +24,10 @@ modetest_LDADD = \
>>       $(top_builddir)/libdrm.la \
>>       $(top_builddir)/tests/util/libutil.la \
>>       $(CAIRO_LIBS)
>> +
>> +modetest_atomic_SOURCES = $(MODETEST_ATOMIC_FILES)
>> +
>> +modetest_atomic_LDADD = \
>> +     $(top_builddir)/libdrm.la \
>> +     $(top_builddir)/tests/util/libutil.la \
>> +     $(CAIRO_LIBS)
>> diff --git a/tests/modetest/Makefile.sources b/tests/modetest/Makefile.sources
>> index 399af0df..0a1df4c0 100644
>> --- a/tests/modetest/Makefile.sources
>> +++ b/tests/modetest/Makefile.sources
>> @@ -4,3 +4,10 @@ MODETEST_FILES := \
>>       cursor.c \
>>       cursor.h \
>>       modetest.c
>> +
>> +MODETEST_ATOMIC_FILES := \
>> +     buffers.c \
>> +     buffers.h \
>> +     cursor.c \
>> +     cursor.h \
>> +     modetest_atomic.c
>> diff --git a/tests/modetest/modetest_atomic.c b/tests/modetest/modetest_atomic.c
>> new file mode 100644
>> index 00000000..8c877860
>> --- /dev/null
>> +++ b/tests/modetest/modetest_atomic.c
>> @@ -0,0 +1,1546 @@
>> +/*
>> + * DRM based mode setting test program
>> + * Copyright 2008 Tungsten Graphics
>> + *   Jakob Bornecrantz <jakob at tungstengraphics.com>
>> + * Copyright 2008 Intel Corporation
>> + *   Jesse Barnes <jesse.barnes at intel.com>
>> + *
>> + * Permission is hereby granted, free of charge, to any person obtaining a
>> + * copy of this software and associated documentation files (the "Software"),
>> + * to deal in the Software without restriction, including without limitation
>> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
>> + * and/or sell copies of the Software, and to permit persons to whom the
>> + * Software is furnished to do so, subject to the following conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
>> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
>> + * IN THE SOFTWARE.
>> + */
>> +
>> +/*
>> + * This fairly simple test program dumps output in a similar format to the
>> + * "xrandr" tool everyone knows & loves.  It's necessarily slightly different
>> + * since the kernel separates outputs into encoder and connector structures,
>> + * each with their own unique ID.  The program also allows test testing of the
>> + * memory management and mode setting APIs by allowing the user to specify a
>> + * connector and mode to use for mode setting.  If all works as expected, a
>> + * blue background should be painted on the monitor attached to the specified
>> + * connector after the selected mode is set.
>> + *
>> + * TODO: use cairo to write the mode info on the selected output once
>> + *       the mode has been programmed, along with possible test patterns.
>> + */
>> +
>> +#ifdef HAVE_CONFIG_H
>> +#include "config.h"
>> +#endif
>> +
>> +#include <assert.h>
>> +#include <ctype.h>
>> +#include <stdbool.h>
>> +#include <stdio.h>
>> +#include <stdlib.h>
>> +#include <stdint.h>
>> +#include <inttypes.h>
>> +#include <unistd.h>
>> +#include <string.h>
>> +#include <strings.h>
>> +#include <errno.h>
>> +#include <poll.h>
>> +#include <sys/time.h>
>> +#ifdef HAVE_SYS_SELECT_H
>> +#include <sys/select.h>
>> +#endif
>> +
>> +#include "xf86drm.h"
>> +#include "xf86drmMode.h"
>> +#include "drm_fourcc.h"
>> +
>> +#include "util/common.h"
>> +#include "util/format.h"
>> +#include "util/kms.h"
>> +#include "util/pattern.h"
>> +
>> +#include "buffers.h"
>> +
>> +struct crtc {
>> +     drmModeCrtc *crtc;
>> +     drmModeObjectProperties *props;
>> +     drmModePropertyRes **props_info;
>> +     drmModeModeInfo *mode;
>> +};
>> +
>> +struct encoder {
>> +     drmModeEncoder *encoder;
>> +};
>> +
>> +struct connector {
>> +     drmModeConnector *connector;
>> +     drmModeObjectProperties *props;
>> +     drmModePropertyRes **props_info;
>> +     char *name;
>> +};
>> +
>> +struct fb {
>> +     drmModeFB *fb;
>> +};
>> +
>> +struct plane {
>> +     drmModePlane *plane;
>> +     drmModeObjectProperties *props;
>> +     drmModePropertyRes **props_info;
>> +};
>> +
>> +struct resources {
>> +     drmModeRes *res;
>> +     drmModePlaneRes *plane_res;
>> +
>> +     struct crtc *crtcs;
>> +     struct encoder *encoders;
>> +     struct connector *connectors;
>> +     struct fb *fbs;
>> +     struct plane *planes;
>> +};
>> +
>> +struct device {
>> +     int fd;
>> +
>> +     struct resources *resources;
>> +     drmModeAtomicReq *req;
>> +};
>> +
>> +static inline int64_t U642I64(uint64_t val)
>> +{
>> +     return (int64_t)*((int64_t *)&val);
>> +}
>> +
>> +#define bit_name_fn(res)                                     \
>> +const char * res##_str(int type) {                           \
>> +     unsigned int i;                                         \
>> +     const char *sep = "";                                   \
>> +     for (i = 0; i < ARRAY_SIZE(res##_names); i++) {         \
>> +             if (type & (1 << i)) {                          \
>> +                     printf("%s%s", sep, res##_names[i]);    \
>> +                     sep = ", ";                             \
>> +             }                                               \
>> +     }                                                       \
>> +     return NULL;                                            \
>> +}
>> +
>> +static const char *mode_type_names[] = {
>> +     "builtin",
>> +     "clock_c",
>> +     "crtc_c",
>> +     "preferred",
>> +     "default",
>> +     "userdef",
>> +     "driver",
>> +};
>> +
>> +static bit_name_fn(mode_type)
>> +
>> +static const char *mode_flag_names[] = {
>> +     "phsync",
>> +     "nhsync",
>> +     "pvsync",
>> +     "nvsync",
>> +     "interlace",
>> +     "dblscan",
>> +     "csync",
>> +     "pcsync",
>> +     "ncsync",
>> +     "hskew",
>> +     "bcast",
>> +     "pixmux",
>> +     "dblclk",
>> +     "clkdiv2"
>> +};
>> +
>> +static bit_name_fn(mode_flag)
>> +
>> +static void dump_fourcc(uint32_t fourcc)
>> +{
>> +     printf(" %c%c%c%c",
>> +             fourcc,
>> +             fourcc >> 8,
>> +             fourcc >> 16,
>> +             fourcc >> 24);
>> +}
>> +
>> +static void dump_encoders(struct device *dev)
>> +{
>> +     drmModeEncoder *encoder;
>> +     int i;
>> +
>> +     printf("Encoders:\n");
>> +     printf("id\tcrtc\ttype\tpossible crtcs\tpossible clones\t\n");
>> +     for (i = 0; i < dev->resources->res->count_encoders; i++) {
>> +             encoder = dev->resources->encoders[i].encoder;
>> +             if (!encoder)
>> +                     continue;
>> +
>> +             printf("%d\t%d\t%s\t0x%08x\t0x%08x\n",
>> +                    encoder->encoder_id,
>> +                    encoder->crtc_id,
>> +                    util_lookup_encoder_type_name(encoder->encoder_type),
>> +                    encoder->possible_crtcs,
>> +                    encoder->possible_clones);
>> +     }
>> +     printf("\n");
>> +}
>> +
>> +static void dump_mode(drmModeModeInfo *mode)
>> +{
>> +     printf("  %s %d %d %d %d %d %d %d %d %d %d",
>> +            mode->name,
>> +            mode->vrefresh,
>> +            mode->hdisplay,
>> +            mode->hsync_start,
>> +            mode->hsync_end,
>> +            mode->htotal,
>> +            mode->vdisplay,
>> +            mode->vsync_start,
>> +            mode->vsync_end,
>> +            mode->vtotal,
>> +            mode->clock);
>> +
>> +     printf(" flags: ");
>> +     mode_flag_str(mode->flags);
>> +     printf("; type: ");
>> +     mode_type_str(mode->type);
>> +     printf("\n");
>> +}
>> +
>> +static void dump_blob(struct device *dev, uint32_t blob_id)
>> +{
>> +     uint32_t i;
>> +     unsigned char *blob_data;
>> +     drmModePropertyBlobPtr blob;
>> +
>> +     blob = drmModeGetPropertyBlob(dev->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(struct device *dev, drmModePropertyPtr prop,
>> +                   uint32_t prop_id, uint64_t value)
>> +{
>> +     int i;
>> +     printf("\t%d", prop_id);
>> +     if (!prop) {
>> +             printf("\n");
>> +             return;
>> +     }
>> +
>> +     printf(" %s:\n", prop->name);
>> +
>> +     printf("\t\tflags:");
>> +     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_SIGNED_RANGE)) {
>> +             printf("\t\tvalues:");
>> +             for (i = 0; i < prop->count_values; i++)
>> +                     printf(" %"PRId64, U642I64(prop->values[i]));
>> +             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(dev, 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(dev, value);
>> +     else if (drm_property_type_is(prop, DRM_MODE_PROP_SIGNED_RANGE))
>> +             printf(" %"PRId64"\n", value);
>> +     else
>> +             printf(" %"PRIu64"\n", value);
>> +}
>> +
>> +static void dump_connectors(struct device *dev)
>> +{
>> +     int i, j;
>> +
>> +     printf("Connectors:\n");
>> +     printf("id\tencoder\tstatus\t\tname\t\tsize (mm)\tmodes\tencoders\n");
>> +     for (i = 0; i < dev->resources->res->count_connectors; i++) {
>> +             struct connector *_connector = &dev->resources->connectors[i];
>> +             drmModeConnector *connector = _connector->connector;
>> +             if (!connector)
>> +                     continue;
>> +
>> +             printf("%d\t%d\t%s\t%-15s\t%dx%d\t\t%d\t",
>> +                    connector->connector_id,
>> +                    connector->encoder_id,
>> +                    util_lookup_connector_status_name(connector->connection),
>> +                    _connector->name,
>> +                    connector->mmWidth, connector->mmHeight,
>> +                    connector->count_modes);
>> +
>> +             for (j = 0; j < connector->count_encoders; j++)
>> +                     printf("%s%d", j > 0 ? ", " : "", connector->encoders[j]);
>> +             printf("\n");
>> +
>> +             if (connector->count_modes) {
>> +                     printf("  modes:\n");
>> +                     printf("\tname refresh (Hz) hdisp hss hse htot vdisp "
>> +                            "vss vse vtot)\n");
>> +                     for (j = 0; j < connector->count_modes; j++)
>> +                             dump_mode(&connector->modes[j]);
>> +             }
>> +
>> +             if (_connector->props) {
>> +                     printf("  props:\n");
>> +                     for (j = 0; j < (int)_connector->props->count_props; j++)
>> +                             dump_prop(dev, _connector->props_info[j],
>> +                                       _connector->props->props[j],
>> +                                       _connector->props->prop_values[j]);
>> +             }
>> +     }
>> +     printf("\n");
>> +}
>> +
>> +static void dump_crtcs(struct device *dev)
>> +{
>> +     int i;
>> +     uint32_t j;
>> +
>> +     printf("CRTCs:\n");
>> +     printf("id\tfb\tpos\tsize\n");
>> +     for (i = 0; i < dev->resources->res->count_crtcs; i++) {
>> +             struct crtc *_crtc = &dev->resources->crtcs[i];
>> +             drmModeCrtc *crtc = _crtc->crtc;
>> +             if (!crtc)
>> +                     continue;
>> +
>> +             printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
>> +                    crtc->crtc_id,
>> +                    crtc->buffer_id,
>> +                    crtc->x, crtc->y,
>> +                    crtc->width, crtc->height);
>> +             dump_mode(&crtc->mode);
>> +
>> +             if (_crtc->props) {
>> +                     printf("  props:\n");
>> +                     for (j = 0; j < _crtc->props->count_props; j++)
>> +                             dump_prop(dev, _crtc->props_info[j],
>> +                                       _crtc->props->props[j],
>> +                                       _crtc->props->prop_values[j]);
>> +             } else {
>> +                     printf("  no properties found\n");
>> +             }
>> +     }
>> +     printf("\n");
>> +}
>> +
>> +static void dump_framebuffers(struct device *dev)
>> +{
>> +     drmModeFB *fb;
>> +     int i;
>> +
>> +     printf("Frame buffers:\n");
>> +     printf("id\tsize\tpitch\n");
>> +     for (i = 0; i < dev->resources->res->count_fbs; i++) {
>> +             fb = dev->resources->fbs[i].fb;
>> +             if (!fb)
>> +                     continue;
>> +
>> +             printf("%u\t(%ux%u)\t%u\n",
>> +                    fb->fb_id,
>> +                    fb->width, fb->height,
>> +                    fb->pitch);
>> +     }
>> +     printf("\n");
>> +}
>> +
>> +static void dump_planes(struct device *dev)
>> +{
>> +     unsigned int i, j;
>> +
>> +     printf("Planes:\n");
>> +     printf("id\tcrtc\tfb\tCRTC x,y\tx,y\tgamma size\tpossible crtcs\n");
>> +
>> +     if (!dev->resources->plane_res)
>> +             return;
>> +
>> +     for (i = 0; i < dev->resources->plane_res->count_planes; i++) {
>> +             struct plane *plane = &dev->resources->planes[i];
>> +             drmModePlane *ovr = plane->plane;
>> +             if (!ovr)
>> +                     continue;
>> +
>> +             printf("%d\t%d\t%d\t%d,%d\t\t%d,%d\t%-8d\t0x%08x\n",
>> +                    ovr->plane_id, ovr->crtc_id, ovr->fb_id,
>> +                    ovr->crtc_x, ovr->crtc_y, ovr->x, ovr->y,
>> +                    ovr->gamma_size, ovr->possible_crtcs);
>> +
>> +             if (!ovr->count_formats)
>> +                     continue;
>> +
>> +             printf("  formats:");
>> +             for (j = 0; j < ovr->count_formats; j++)
>> +                     dump_fourcc(ovr->formats[j]);
>> +             printf("\n");
>> +
>> +             if (plane->props) {
>> +                     printf("  props:\n");
>> +                     for (j = 0; j < plane->props->count_props; j++)
>> +                             dump_prop(dev, plane->props_info[j],
>> +                                       plane->props->props[j],
>> +                                       plane->props->prop_values[j]);
>> +             } else {
>> +                     printf("  no properties found\n");
>> +             }
>> +     }
>> +     printf("\n");
>> +
>> +     return;
>> +}
>> +
>> +static void free_resources(struct resources *res)
>> +{
>> +     int i;
>> +
>> +     if (!res)
>> +             return;
>> +
>> +#define free_resource(_res, __res, type, Type)                                       \
>> +     do {                                                                    \
>> +             if (!(_res)->type##s)                                           \
>> +                     break;                                                  \
>> +             for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
>> +                     if (!(_res)->type##s[i].type)                           \
>> +                             break;                                          \
>> +                     drmModeFree##Type((_res)->type##s[i].type);             \
>> +             }                                                               \
>> +             free((_res)->type##s);                                          \
>> +     } while (0)
>> +
>> +#define free_properties(_res, __res, type)                                   \
>> +     do {                                                                    \
>> +             for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
>> +                     drmModeFreeObjectProperties(res->type##s[i].props);     \
>> +                     free(res->type##s[i].props_info);                       \
>> +             }                                                               \
>> +     } while (0)
>> +
>> +     if (res->res) {
>> +             free_properties(res, res, crtc);
>> +
>> +             free_resource(res, res, crtc, Crtc);
>> +             free_resource(res, res, encoder, Encoder);
>> +
>> +             for (i = 0; i < res->res->count_connectors; i++)
>> +                     free(res->connectors[i].name);
>> +
>> +             free_resource(res, res, connector, Connector);
>> +             free_resource(res, res, fb, FB);
>> +
>> +             drmModeFreeResources(res->res);
>> +     }
>> +
>> +     if (res->plane_res) {
>> +             free_properties(res, plane_res, plane);
>> +
>> +             free_resource(res, plane_res, plane, Plane);
>> +
>> +             drmModeFreePlaneResources(res->plane_res);
>> +     }
>> +
>> +     free(res);
>> +}
>> +
>> +static struct resources *get_resources(struct device *dev)
>> +{
>> +     struct resources *res;
>> +     int i;
>> +
>> +     res = calloc(1, sizeof(*res));
>> +     if (res == 0)
>> +             return NULL;
>> +
>> +     drmSetClientCap(dev->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
>> +
>> +     res->res = drmModeGetResources(dev->fd);
>> +     if (!res->res) {
>> +             fprintf(stderr, "drmModeGetResources failed: %s\n",
>> +                     strerror(errno));
>> +             goto error;
>> +     }
>> +
>> +     res->crtcs = calloc(res->res->count_crtcs, sizeof(*res->crtcs));
>> +     res->encoders = calloc(res->res->count_encoders, sizeof(*res->encoders));
>> +     res->connectors = calloc(res->res->count_connectors, sizeof(*res->connectors));
>> +     res->fbs = calloc(res->res->count_fbs, sizeof(*res->fbs));
>> +
>> +     if (!res->crtcs || !res->encoders || !res->connectors || !res->fbs)
>> +             goto error;
>> +
>> +#define get_resource(_res, __res, type, Type)                                        \
>> +     do {                                                                    \
>> +             for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
>> +                     (_res)->type##s[i].type =                               \
>> +                             drmModeGet##Type(dev->fd, (_res)->__res->type##s[i]); \
>> +                     if (!(_res)->type##s[i].type)                           \
>> +                             fprintf(stderr, "could not get %s %i: %s\n",    \
>> +                                     #type, (_res)->__res->type##s[i],       \
>> +                                     strerror(errno));                       \
>> +             }                                                               \
>> +     } while (0)
>> +
>> +     get_resource(res, res, crtc, Crtc);
>> +     get_resource(res, res, encoder, Encoder);
>> +     get_resource(res, res, connector, Connector);
>> +     get_resource(res, res, fb, FB);
>> +
>> +     /* Set the name of all connectors based on the type name and the per-type ID. */
>> +     for (i = 0; i < res->res->count_connectors; i++) {
>> +             struct connector *connector = &res->connectors[i];
>> +             drmModeConnector *conn = connector->connector;
>> +             int num;
>> +
>> +             num = asprintf(&connector->name, "%s-%u",
>> +                      util_lookup_connector_type_name(conn->connector_type),
>> +                      conn->connector_type_id);
>> +             if (num < 0)
>> +                     goto error;
>> +     }
>> +
>> +#define get_properties(_res, __res, type, Type)                                      \
>> +     do {                                                                    \
>> +             for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
>> +                     struct type *obj = &res->type##s[i];                    \
>> +                     unsigned int j;                                         \
>> +                     obj->props =                                            \
>> +                             drmModeObjectGetProperties(dev->fd, obj->type->type##_id, \
>> +                                                        DRM_MODE_OBJECT_##Type); \
>> +                     if (!obj->props) {                                      \
>> +                             fprintf(stderr,                                 \
>> +                                     "could not get %s %i properties: %s\n", \
>> +                                     #type, obj->type->type##_id,            \
>> +                                     strerror(errno));                       \
>> +                             continue;                                       \
>> +                     }                                                       \
>> +                     obj->props_info = calloc(obj->props->count_props,       \
>> +                                              sizeof(*obj->props_info));     \
>> +                     if (!obj->props_info)                                   \
>> +                             continue;                                       \
>> +                     for (j = 0; j < obj->props->count_props; ++j)           \
>> +                             obj->props_info[j] =                            \
>> +                                     drmModeGetProperty(dev->fd, obj->props->props[j]); \
>> +             }                                                               \
>> +     } while (0)
>> +
>> +     get_properties(res, res, crtc, CRTC);
>> +     get_properties(res, res, connector, CONNECTOR);
>> +
>> +     for (i = 0; i < res->res->count_crtcs; ++i)
>> +             res->crtcs[i].mode = &res->crtcs[i].crtc->mode;
>> +
>> +     res->plane_res = drmModeGetPlaneResources(dev->fd);
>> +     if (!res->plane_res) {
>> +             fprintf(stderr, "drmModeGetPlaneResources failed: %s\n",
>> +                     strerror(errno));
>> +             return res;
>> +     }
>> +
>> +     res->planes = calloc(res->plane_res->count_planes, sizeof(*res->planes));
>> +     if (!res->planes)
>> +             goto error;
>> +
>> +     get_resource(res, plane_res, plane, Plane);
>> +     get_properties(res, plane_res, plane, PLANE);
>> +
>> +     return res;
>> +
>> +error:
>> +     free_resources(res);
>> +     return NULL;
>> +}
>> +
>> +static int get_crtc_index(struct device *dev, uint32_t id)
>> +{
>> +     int i;
>> +
>> +     for (i = 0; i < dev->resources->res->count_crtcs; ++i) {
>> +             drmModeCrtc *crtc = dev->resources->crtcs[i].crtc;
>> +             if (crtc && crtc->crtc_id == id)
>> +                     return i;
>> +     }
>> +
>> +     return -1;
>> +}
>> +
>> +static drmModeConnector *get_connector_by_name(struct device *dev, const char *name)
>> +{
>> +     struct connector *connector;
>> +     int i;
>> +
>> +     for (i = 0; i < dev->resources->res->count_connectors; i++) {
>> +             connector = &dev->resources->connectors[i];
>> +
>> +             if (strcmp(connector->name, name) == 0)
>> +                     return connector->connector;
>> +     }
>> +
>> +     return NULL;
>> +}
>> +
>> +static drmModeConnector *get_connector_by_id(struct device *dev, uint32_t id)
>> +{
>> +     drmModeConnector *connector;
>> +     int i;
>> +
>> +     for (i = 0; i < dev->resources->res->count_connectors; i++) {
>> +             connector = dev->resources->connectors[i].connector;
>> +             if (connector && connector->connector_id == id)
>> +                     return connector;
>> +     }
>> +
>> +     return NULL;
>> +}
>> +
>> +static drmModeEncoder *get_encoder_by_id(struct device *dev, uint32_t id)
>> +{
>> +     drmModeEncoder *encoder;
>> +     int i;
>> +
>> +     for (i = 0; i < dev->resources->res->count_encoders; i++) {
>> +             encoder = dev->resources->encoders[i].encoder;
>> +             if (encoder && encoder->encoder_id == id)
>> +                     return encoder;
>> +     }
>> +
>> +     return NULL;
>> +}
>> +
>> +/* -----------------------------------------------------------------------------
>> + * Pipes and planes
>> + */
>> +
>> +/*
>> + * Mode setting with the kernel interfaces is a bit of a chore.
>> + * First you have to find the connector in question and make sure the
>> + * requested mode is available.
>> + * Then you need to find the encoder attached to that connector so you
>> + * can bind it with a free crtc.
>> + */
>> +struct pipe_arg {
>> +     const char **cons;
>> +     uint32_t *con_ids;
>> +     unsigned int num_cons;
>> +     uint32_t crtc_id;
>> +     char mode_str[64];
>> +     char format_str[5];
>> +     unsigned int vrefresh;
>> +     unsigned int fourcc;
>> +     drmModeModeInfo *mode;
>> +     struct crtc *crtc;
>> +     unsigned int fb_id[2], current_fb_id;
>> +     struct timeval start;
>> +
>> +     int swap_count;
>> +};
>> +
>> +struct plane_arg {
>> +     uint32_t plane_id;  /* the id of plane to use */
>> +     uint32_t crtc_id;  /* the id of CRTC to bind to */
>> +     bool has_position;
>> +     int32_t x, y;
>> +     uint32_t w, h;
>> +     double scale;
>> +     unsigned int fb_id;
>> +     unsigned int old_fb_id;
>> +     struct bo *bo;
>> +     struct bo *old_bo;
>> +     char format_str[5]; /* need to leave room for terminating \0 */
>> +     unsigned int fourcc;
>> +};
>> +
>> +static drmModeModeInfo *
>> +connector_find_mode(struct device *dev, uint32_t con_id, const char *mode_str,
>> +        const unsigned int vrefresh)
>> +{
>> +     drmModeConnector *connector;
>> +     drmModeModeInfo *mode;
>> +     int i;
>> +
>> +     connector = get_connector_by_id(dev, con_id);
>> +     if (!connector || !connector->count_modes)
>> +             return NULL;
>> +
>> +     for (i = 0; i < connector->count_modes; i++) {
>> +             mode = &connector->modes[i];
>> +             if (!strcmp(mode->name, mode_str)) {
>> +                     /* If the vertical refresh frequency is not specified then return the
>> +                      * first mode that match with the name. Else, return the mode that match
>> +                      * the name and the specified vertical refresh frequency.
>> +                      */
>> +                     if (vrefresh == 0)
>> +                             return mode;
>> +                     else if (mode->vrefresh == vrefresh)
>> +                             return mode;
>> +             }
>> +     }
>> +
>> +     return NULL;
>> +}
>> +
>> +static struct crtc *pipe_find_crtc(struct device *dev, struct pipe_arg *pipe)
>> +{
>> +     uint32_t possible_crtcs = ~0;
>> +     uint32_t active_crtcs = 0;
>> +     unsigned int crtc_idx;
>> +     unsigned int i;
>> +     int j;
>> +
>> +     for (i = 0; i < pipe->num_cons; ++i) {
>> +             uint32_t crtcs_for_connector = 0;
>> +             drmModeConnector *connector;
>> +             drmModeEncoder *encoder;
>> +             int idx;
>> +
>> +             connector = get_connector_by_id(dev, pipe->con_ids[i]);
>> +             if (!connector)
>> +                     return NULL;
>> +
>> +             for (j = 0; j < connector->count_encoders; ++j) {
>> +                     encoder = get_encoder_by_id(dev, connector->encoders[j]);
>> +                     if (!encoder)
>> +                             continue;
>> +
>> +                     crtcs_for_connector |= encoder->possible_crtcs;
>> +
>> +                     idx = get_crtc_index(dev, encoder->crtc_id);
>> +                     if (idx >= 0)
>> +                             active_crtcs |= 1 << idx;
>> +             }
>> +
>> +             possible_crtcs &= crtcs_for_connector;
>> +     }
>> +
>> +     if (!possible_crtcs)
>> +             return NULL;
>> +
>> +     /* Return the first possible and active CRTC if one exists, or the first
>> +      * possible CRTC otherwise.
>> +      */
>> +     if (possible_crtcs & active_crtcs)
>> +             crtc_idx = ffs(possible_crtcs & active_crtcs);
>> +     else
>> +             crtc_idx = ffs(possible_crtcs);
>> +
>> +     return &dev->resources->crtcs[crtc_idx - 1];
>> +}
>> +
>> +static int pipe_find_crtc_and_mode(struct device *dev, struct pipe_arg *pipe)
>> +{
>> +     drmModeModeInfo *mode = NULL;
>> +     int i;
>> +
>> +     pipe->mode = NULL;
>> +
>> +     for (i = 0; i < (int)pipe->num_cons; i++) {
>> +             mode = connector_find_mode(dev, pipe->con_ids[i],
>> +                                        pipe->mode_str, pipe->vrefresh);
>> +             if (mode == NULL) {
>> +                     fprintf(stderr,
>> +                             "failed to find mode \"%s\" for connector %s\n",
>> +                             pipe->mode_str, pipe->cons[i]);
>> +                     return -EINVAL;
>> +             }
>> +     }
>> +
>> +     /* If the CRTC ID was specified, get the corresponding CRTC. Otherwise
>> +      * locate a CRTC that can be attached to all the connectors.
>> +      */
>> +     if (pipe->crtc_id != (uint32_t)-1) {
>> +             for (i = 0; i < dev->resources->res->count_crtcs; i++) {
>> +                     struct crtc *crtc = &dev->resources->crtcs[i];
>> +
>> +                     if (pipe->crtc_id == crtc->crtc->crtc_id) {
>> +                             pipe->crtc = crtc;
>> +                             break;
>> +                     }
>> +             }
>> +     } else {
>> +             pipe->crtc = pipe_find_crtc(dev, pipe);
>> +     }
>> +
>> +     if (!pipe->crtc) {
>> +             fprintf(stderr, "failed to find CRTC for pipe\n");
>> +             return -EINVAL;
>> +     }
>> +
>> +     pipe->mode = mode;
>> +     pipe->crtc->mode = mode;
>> +
>> +     return 0;
>> +}
>> +
>> +/* -----------------------------------------------------------------------------
>> + * Properties
>> + */
>> +
>> +struct property_arg {
>> +     uint32_t obj_id;
>> +     uint32_t obj_type;
>> +     char name[DRM_PROP_NAME_LEN+1];
>> +     uint32_t prop_id;
>> +     uint64_t value;
>> +};
>> +
>> +static void set_property(struct device *dev, struct property_arg *p)
>> +{
>> +     drmModeObjectProperties *props = NULL;
>> +     drmModePropertyRes **props_info = NULL;
>> +     const char *obj_type;
>> +     int ret;
>> +     int i;
>> +
>> +     p->obj_type = 0;
>> +     p->prop_id = 0;
>> +
>> +#define find_object(_res, __res, type, Type)                                 \
>> +     do {                                                                    \
>> +             for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     \
>> +                     struct type *obj = &(_res)->type##s[i];                 \
>> +                     if (obj->type->type##_id != p->obj_id)                  \
>> +                             continue;                                       \
>> +                     p->obj_type = DRM_MODE_OBJECT_##Type;                   \
>> +                     obj_type = #Type;                                       \
>> +                     props = obj->props;                                     \
>> +                     props_info = obj->props_info;                           \
>> +             }                                                               \
>> +     } while(0)                                                              \
>> +
>> +     find_object(dev->resources, res, crtc, CRTC);
>> +     if (p->obj_type == 0)
>> +             find_object(dev->resources, res, connector, CONNECTOR);
>> +     if (p->obj_type == 0)
>> +             find_object(dev->resources, plane_res, plane, PLANE);
>> +     if (p->obj_type == 0) {
>> +             fprintf(stderr, "Object %i not found, can't set property\n",
>> +                     p->obj_id);
>> +                     return;
>> +     }
>> +
>> +     if (!props) {
>> +             fprintf(stderr, "%s %i has no properties\n",
>> +                     obj_type, p->obj_id);
>> +             return;
>> +     }
>> +
>> +     for (i = 0; i < (int)props->count_props; ++i) {
>> +             if (!props_info[i])
>> +                     continue;
>> +             if (strcmp(props_info[i]->name, p->name) == 0)
>> +                     break;
>> +     }
>> +
>> +     if (i == (int)props->count_props) {
>> +             fprintf(stderr, "%s %i has no %s property\n",
>> +                     obj_type, p->obj_id, p->name);
>> +             return;
>> +     }
>> +
>> +     p->prop_id = props->props[i];
>> +
>> +     ret = drmModeAtomicAddProperty(dev->req, p->obj_id, p->prop_id, p->value);
>> +     if (ret < 0)
>> +             fprintf(stderr, "failed to set %s %i property %s to %" PRIu64 ": %s\n",
>> +                     obj_type, p->obj_id, p->name, p->value, strerror(errno));
>> +}
>> +
>> +/* -------------------------------------------------------------------------- */
>> +
>> +/*static bool format_support(const drmModePlanePtr ovr, uint32_t fmt)
>> +{
>> +     unsigned int i;
>> +
>> +     for (i = 0; i < ovr->count_formats; ++i) {
>> +             if (ovr->formats[i] == fmt)
>> +                     return true;
>> +     }
>> +
>> +     return false;
>> +}*/
>> +
>> +static void add_property(struct device *dev, uint32_t obj_id,
>> +                            const char *name, uint64_t value)
>> +{
>> +     struct property_arg p;
>> +
>> +     p.obj_id = obj_id;
>> +     strcpy(p.name, name);
>> +     p.value = value;
>> +
>> +     set_property(dev, &p);
>> +}
>> +
>> +static int set_plane(struct device *dev, struct plane_arg *p,
>> +                  int pattern, bool update)
>> +{
>> +     uint32_t handles[4] = {0}, pitches[4] = {0}, offsets[4] = {0};
>> +     struct bo *plane_bo;
>> +     int crtc_x, crtc_y, crtc_w, crtc_h;
>> +     struct crtc *crtc = NULL;
>> +     unsigned int i;
>> +     unsigned int old_fb_id;
>> +
>> +     /* Find an unused plane which can be connected to our CRTC. Find the
>> +      * CRTC index first, then iterate over available planes.
>> +      */
>> +     for (i = 0; i < (unsigned int)dev->resources->res->count_crtcs; i++) {
>> +             if (p->crtc_id == dev->resources->res->crtcs[i]) {
>> +                     crtc = &dev->resources->crtcs[i];
>> +                     break;
>> +             }
>> +     }
>> +
>> +     if (!crtc) {
>> +             fprintf(stderr, "CRTC %u not found\n", p->crtc_id);
>> +             return -1;
>> +     }
>> +
>> +     if (!update)
>> +             fprintf(stderr, "testing %dx%d@%s on plane %u, crtc %u\n",
>> +                     p->w, p->h, p->format_str, p->plane_id, p->crtc_id);
>> +
>> +     plane_bo = p->old_bo;
>> +     p->old_bo = p->bo;
>> +
>> +     if (!plane_bo) {
>> +             plane_bo = bo_create(dev->fd, p->fourcc, p->w, p->h,
>> +                                  handles, pitches, offsets, pattern);
>> +
>> +             if (plane_bo == NULL)
>> +                     return -1;
>> +
>> +             if (drmModeAddFB2(dev->fd, p->w, p->h, p->fourcc,
>> +                     handles, pitches, offsets, &p->fb_id, 0)) {
>> +                     fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
>> +                     return -1;
>> +             }
>> +     }
>> +
>> +     p->bo = plane_bo;
>> +
>> +     old_fb_id = p->fb_id;
>> +     p->old_fb_id = old_fb_id;
>> +
>> +     crtc_w = p->w * p->scale;
>> +     crtc_h = p->h * p->scale;
>> +     if (!p->has_position) {
>> +             /* Default to the middle of the screen */
>> +             crtc_x = (crtc->mode->hdisplay - crtc_w) / 2;
>> +             crtc_y = (crtc->mode->vdisplay - crtc_h) / 2;
>> +     } else {
>> +             crtc_x = p->x;
>> +             crtc_y = p->y;
>> +     }
>> +
>> +     add_property(dev, p->plane_id, "FB_ID", p->fb_id);
>> +     add_property(dev, p->plane_id, "CRTC_ID", p->crtc_id);
>> +     add_property(dev, p->plane_id, "SRC_X", 0);
>> +     add_property(dev, p->plane_id, "SRC_Y", 0);
>> +     add_property(dev, p->plane_id, "SRC_W", p->w << 16);
>> +     add_property(dev, p->plane_id, "SRC_H", p->h << 16);
>> +     add_property(dev, p->plane_id, "CRTC_X", crtc_x);
>> +     add_property(dev, p->plane_id, "CRTC_Y", crtc_y);
>> +     add_property(dev, p->plane_id, "CRTC_W", crtc_w);
>> +     add_property(dev, p->plane_id, "CRTC_H", crtc_h);
>> +
>> +     return 0;
>> +}
>> +
>> +static void set_planes(struct device *dev, struct plane_arg *p,
>> +                    unsigned int count, bool update)
>> +{
>> +     unsigned int i, pattern = UTIL_PATTERN_SMPTE;
>> +
>> +     /* set up planes */
>> +     for (i = 0; i < count; i++) {
>> +             if (i > 0)
>> +                     pattern = UTIL_PATTERN_TILES;
>> +
>> +             if (set_plane(dev, &p[i], pattern, update))
>> +                     return;
>> +     }
>> +}
>> +
>> +static void clear_planes(struct device *dev, struct plane_arg *p, unsigned int count)
>> +{
>> +     unsigned int i;
>> +
>> +     for (i = 0; i < count; i++) {
>> +             add_property(dev, p[i].plane_id, "FB_ID", 0);
>> +             add_property(dev, p[i].plane_id, "CRTC_ID", 0);
>> +             add_property(dev, p[i].plane_id, "SRC_X", 0);
>> +             add_property(dev, p[i].plane_id, "SRC_Y", 0);
>> +             add_property(dev, p[i].plane_id, "SRC_W", 0);
>> +             add_property(dev, p[i].plane_id, "SRC_H", 0);
>> +             add_property(dev, p[i].plane_id, "CRTC_X", 0);
>> +             add_property(dev, p[i].plane_id, "CRTC_Y", 0);
>> +             add_property(dev, p[i].plane_id, "CRTC_W", 0);
>> +             add_property(dev, p[i].plane_id, "CRTC_H", 0);
>> +     }
>> +}
>> +
>> +static void clear_FB(struct device *dev, struct plane_arg *p, unsigned int count)
>> +{
>> +     unsigned int i;
>> +
>> +     for (i = 0; i < count; i++) {
>> +             if (p[i].fb_id) {
>> +                     drmModeRmFB(dev->fd, p[i].fb_id);
>> +                     p[i].fb_id = 0;
>> +             }
>> +             if (p[i].old_fb_id) {
>> +                     drmModeRmFB(dev->fd, p[i].old_fb_id);
>> +                     p[i].old_fb_id = 0;
>> +             }
>> +             if (p[i].bo) {
>> +                     bo_destroy(p[i].bo);
>> +                     p[i].bo = NULL;
>> +             }
>> +             if (p[i].old_bo) {
>> +                     bo_destroy(p[i].old_bo);
>> +                     p[i].old_bo = NULL;
>> +             }
>> +
>> +     }
>> +}
>> +
>> +static void set_mode(struct device *dev, struct pipe_arg *pipes, unsigned int count)
>> +{
>> +     unsigned int i;
>> +     unsigned int j;
>> +     int ret;
>> +
>> +     for (i = 0; i < count; i++) {
>> +             struct pipe_arg *pipe = &pipes[i];
>> +
>> +             ret = pipe_find_crtc_and_mode(dev, pipe);
>> +             if (ret < 0)
>> +                     continue;
>> +     }
>> +
>> +     for (i = 0; i < count; i++) {
>> +             struct pipe_arg *pipe = &pipes[i];
>> +             uint32_t blob_id;
>> +
>> +             if (pipe->mode == NULL)
>> +                     continue;
>> +
>> +             printf("setting mode %s-%dHz@%s on connectors ",
>> +                    pipe->mode_str, pipe->mode->vrefresh, pipe->format_str);
>> +             for (j = 0; j < pipe->num_cons; ++j) {
>> +                     printf("%s, ", pipe->cons[j]);
>> +                     add_property(dev, pipe->con_ids[j], "CRTC_ID", pipe->crtc->crtc->crtc_id);
>> +             }
>> +             printf("crtc %d\n", pipe->crtc->crtc->crtc_id);
>> +
>> +             drmModeCreatePropertyBlob(dev->fd, pipe->mode, sizeof(*pipe->mode), &blob_id);
>> +             add_property(dev, pipe->crtc->crtc->crtc_id, "MODE_ID", blob_id);
>> +             add_property(dev, pipe->crtc->crtc->crtc_id, "ACTIVE", 1);
>> +     }
>> +}
>> +
>> +static void clear_mode(struct device *dev, struct pipe_arg *pipes, unsigned int count)
>> +{
>> +     unsigned int i;
>> +     unsigned int j;
>> +
>> +     for (i = 0; i < count; i++) {
>> +             struct pipe_arg *pipe = &pipes[i];
>> +
>> +             if (pipe->mode == NULL)
>> +                     continue;
>> +
>> +             for (j = 0; j < pipe->num_cons; ++j)
>> +                     add_property(dev, pipe->con_ids[j], "CRTC_ID",0);
>> +
>> +             add_property(dev, pipe->crtc->crtc->crtc_id, "MODE_ID", 0);
>> +             add_property(dev, pipe->crtc->crtc->crtc_id, "ACTIVE", 0);
>> +     }
>> +
>> +}
>> +
>> +#define min(a, b)    ((a) < (b) ? (a) : (b))
>> +
>> +static int parse_connector(struct pipe_arg *pipe, const char *arg)
>> +{
>> +     unsigned int len;
>> +     unsigned int i;
>> +     const char *p;
>> +     char *endp;
>> +
>> +     pipe->vrefresh = 0;
>> +     pipe->crtc_id = (uint32_t)-1;
>> +     strcpy(pipe->format_str, "XR24");
>> +
>> +     /* Count the number of connectors and allocate them. */
>> +     pipe->num_cons = 1;
>> +     for (p = arg; *p && *p != ':' && *p != '@'; ++p) {
>> +             if (*p == ',')
>> +                     pipe->num_cons++;
>> +     }
>> +
>> +     pipe->con_ids = calloc(pipe->num_cons, sizeof(*pipe->con_ids));
>> +     pipe->cons = calloc(pipe->num_cons, sizeof(*pipe->cons));
>> +     if (pipe->con_ids == NULL || pipe->cons == NULL)
>> +             return -1;
>> +
>> +     /* Parse the connectors. */
>> +     for (i = 0, p = arg; i < pipe->num_cons; ++i, p = endp + 1) {
>> +             endp = strpbrk(p, ",@:");
>> +             if (!endp)
>> +                     break;
>> +
>> +             pipe->cons[i] = strndup(p, endp - p);
>> +
>> +             if (*endp != ',')
>> +                     break;
>> +     }
>> +
>> +     if (i != pipe->num_cons - 1)
>> +             return -1;
>> +
>> +     /* Parse the remaining parameters. */
>> +     if (*endp == '@') {
>> +             arg = endp + 1;
>> +             pipe->crtc_id = strtoul(arg, &endp, 10);
>> +     }
>> +     if (*endp != ':')
>> +             return -1;
>> +
>> +     arg = endp + 1;
>> +
>> +     /* Search for the vertical refresh or the format. */
>> +     p = strpbrk(arg, "-@");
>> +     if (p == NULL)
>> +             p = arg + strlen(arg);
>> +     len = min(sizeof pipe->mode_str - 1, (unsigned int)(p - arg));
>> +     strncpy(pipe->mode_str, arg, len);
>> +     pipe->mode_str[len] = '\0';
>> +
>> +     if (*p == '-') {
>> +             pipe->vrefresh = strtoul(p + 1, &endp, 10);
>> +             p = endp;
>> +     }
>> +
>> +     if (*p == '@') {
>> +             strncpy(pipe->format_str, p + 1, 4);
>> +             pipe->format_str[4] = '\0';
>> +     }
>> +
>> +     pipe->fourcc = util_format_fourcc(pipe->format_str);
>> +     if (pipe->fourcc == 0)  {
>> +             fprintf(stderr, "unknown format %s\n", pipe->format_str);
>> +             return -1;
>> +     }
>> +
>> +     return 0;
>> +}
>> +
>> +static int parse_plane(struct plane_arg *plane, const char *p)
>> +{
>> +     char *end;
>> +
>> +     plane->plane_id = strtoul(p, &end, 10);
>> +     if (*end != '@')
>> +             return -EINVAL;
>> +
>> +     p = end + 1;
>> +     plane->crtc_id = strtoul(p, &end, 10);
>> +     if (*end != ':')
>> +             return -EINVAL;
>> +
>> +     p = end + 1;
>> +     plane->w = strtoul(p, &end, 10);
>> +     if (*end != 'x')
>> +             return -EINVAL;
>> +
>> +     p = end + 1;
>> +     plane->h = strtoul(p, &end, 10);
>> +
>> +     if (*end == '+' || *end == '-') {
>> +             plane->x = strtol(end, &end, 10);
>> +             if (*end != '+' && *end != '-')
>> +                     return -EINVAL;
>> +             plane->y = strtol(end, &end, 10);
>> +
>> +             plane->has_position = true;
>> +     }
>> +
>> +     if (*end == '*') {
>> +             p = end + 1;
>> +             plane->scale = strtod(p, &end);
>> +             if (plane->scale <= 0.0)
>> +                     return -EINVAL;
>> +     } else {
>> +             plane->scale = 1.0;
>> +     }
>> +
>> +     if (*end == '@') {
>> +             p = end + 1;
>> +             if (strlen(p) != 4)
>> +                     return -EINVAL;
>> +
>> +             strcpy(plane->format_str, p);
>> +     } else {
>> +             strcpy(plane->format_str, "XR24");
>> +     }
>> +
>> +     plane->fourcc = util_format_fourcc(plane->format_str);
>> +     if (plane->fourcc == 0) {
>> +             fprintf(stderr, "unknown format %s\n", plane->format_str);
>> +             return -EINVAL;
>> +     }
>> +
>> +     return 0;
>> +}
>> +
>> +static int parse_property(struct property_arg *p, const char *arg)
>> +{
>> +     if (sscanf(arg, "%d:%32[^:]:%" SCNu64, &p->obj_id, p->name, &p->value) != 3)
>> +             return -1;
>> +
>> +     p->obj_type = 0;
>> +     p->name[DRM_PROP_NAME_LEN] = '\0';
>> +
>> +     return 0;
>> +}
>> +
>> +static void usage(char *name)
>> +{
>> +     fprintf(stderr, "usage: %s [-cDdefMPpsCvw]\n", name);
>> +
>> +     fprintf(stderr, "\n Query options:\n\n");
>> +     fprintf(stderr, "\t-c\tlist connectors\n");
>> +     fprintf(stderr, "\t-e\tlist encoders\n");
>> +     fprintf(stderr, "\t-f\tlist framebuffers\n");
>> +     fprintf(stderr, "\t-p\tlist CRTCs and planes (pipes)\n");
>> +
>> +     fprintf(stderr, "\n Test options:\n\n");
>> +     fprintf(stderr, "\t-P <plane_id>@<crtc_id>:<w>x<h>[+<x>+<y>][*<scale>][@<format>]\tset a plane\n");
>> +     fprintf(stderr, "\t-s <connector_id>[,<connector_id>][@<crtc_id>]:<mode>[-<vrefresh>][@<format>]\tset a mode\n");
>> +     fprintf(stderr, "\t-v\ttest loop\n");
>> +     fprintf(stderr, "\t-w <obj_id>:<prop_name>:<value>\tset property\n");
>> +
>> +     fprintf(stderr, "\n Generic options:\n\n");
>> +     fprintf(stderr, "\t-d\tdrop master after mode set\n");
>> +     fprintf(stderr, "\t-M module\tuse the given driver\n");
>> +     fprintf(stderr, "\t-D device\tuse the given device\n");
>> +
>> +     fprintf(stderr, "\n\tDefault is to dump all info.\n");
>> +     exit(0);
>> +}
>> +
>> +static int pipe_resolve_connectors(struct device *dev, struct pipe_arg *pipe)
>> +{
>> +     drmModeConnector *connector;
>> +     unsigned int i;
>> +     uint32_t id;
>> +     char *endp;
>> +
>> +     for (i = 0; i < pipe->num_cons; i++) {
>> +             id = strtoul(pipe->cons[i], &endp, 10);
>> +             if (endp == pipe->cons[i]) {
>> +                     connector = get_connector_by_name(dev, pipe->cons[i]);
>> +                     if (!connector) {
>> +                             fprintf(stderr, "no connector named '%s'\n",
>> +                                     pipe->cons[i]);
>> +                             return -ENODEV;
>> +                     }
>> +
>> +                     id = connector->connector_id;
>> +             }
>> +
>> +             pipe->con_ids[i] = id;
>> +     }
>> +
>> +     return 0;
>> +}
>> +
>> +static char optstr[] = "cdD:efM:P:ps:vw:";
>> +
>> +int main(int argc, char **argv)
>> +{
>> +     struct device dev;
>> +
>> +     int c;
>> +     int encoders = 0, connectors = 0, crtcs = 0, planes = 0, framebuffers = 0;
>> +     int drop_master = 0;
>> +     int test_loop = 0;
>> +     char *device = NULL;
>> +     char *module = NULL;
>> +     unsigned int i;
>> +     unsigned int count = 0, plane_count = 0;
>> +     unsigned int prop_count = 0;
>> +     struct pipe_arg *pipe_args = NULL;
>> +     struct plane_arg *plane_args = NULL;
>> +     struct property_arg *prop_args = NULL;
>> +     unsigned int args = 0;
>> +     int ret;
>> +
>> +     memset(&dev, 0, sizeof dev);
>> +
>> +     opterr = 0;
>> +     while ((c = getopt(argc, argv, optstr)) != -1) {
>> +             args++;
>> +
>> +             switch (c) {
>> +             case 'c':
>> +                     connectors = 1;
>> +                     break;
>> +             case 'D':
>> +                     device = optarg;
>> +                     args--;
>> +                     break;
>> +             case 'd':
>> +                     drop_master = 1;
>> +                     break;
>> +             case 'e':
>> +                     encoders = 1;
>> +                     break;
>> +             case 'f':
>> +                     framebuffers = 1;
>> +                     break;
>> +             case 'M':
>> +                     module = optarg;
>> +                     /* Preserve the default behaviour of dumping all information. */
>> +                     args--;
>> +                     break;
>> +             case 'P':
>> +                     plane_args = realloc(plane_args,
>> +                                          (plane_count + 1) * sizeof *plane_args);
>> +                     if (plane_args == NULL) {
>> +                             fprintf(stderr, "memory allocation failed\n");
>> +                             return 1;
>> +                     }
>> +                     memset(&plane_args[plane_count], 0, sizeof(*plane_args));
>> +
>> +                     if (parse_plane(&plane_args[plane_count], optarg) < 0)
>> +                             usage(argv[0]);
>> +
>> +                     plane_count++;
>> +                     break;
>> +             case 'p':
>> +                     crtcs = 1;
>> +                     planes = 1;
>> +                     break;
>> +             case 's':
>> +                     pipe_args = realloc(pipe_args,
>> +                                         (count + 1) * sizeof *pipe_args);
>> +                     if (pipe_args == NULL) {
>> +                             fprintf(stderr, "memory allocation failed\n");
>> +                             return 1;
>> +                     }
>> +                     memset(&pipe_args[count], 0, sizeof(*pipe_args));
>> +
>> +                     if (parse_connector(&pipe_args[count], optarg) < 0)
>> +                             usage(argv[0]);
>> +
>> +                     count++;
>> +                     break;
>> +             case 'v':
>> +                     test_loop = 1;
>> +                     break;
>> +             case 'w':
>> +                     prop_args = realloc(prop_args,
>> +                                        (prop_count + 1) * sizeof *prop_args);
>> +                     if (prop_args == NULL) {
>> +                             fprintf(stderr, "memory allocation failed\n");
>> +                             return 1;
>> +                     }
>> +                     memset(&prop_args[prop_count], 0, sizeof(*prop_args));
>> +
>> +                     if (parse_property(&prop_args[prop_count], optarg) < 0)
>> +                             usage(argv[0]);
>> +
>> +                     prop_count++;
>> +                     break;
>> +             default:
>> +                     usage(argv[0]);
>> +                     break;
>> +             }
>> +     }
>> +
>> +     if (!args)
>> +             encoders = connectors = crtcs = planes = framebuffers = 1;
>> +
>> +     dev.fd = util_open(device, module);
>> +     if (dev.fd < 0)
>> +             return -1;
>> +
>> +     ret = drmSetClientCap(dev.fd, DRM_CLIENT_CAP_ATOMIC, 1);
>> +     if (ret) {
>> +             fprintf(stderr, "no atomic modesetting support: %s\n", strerror(errno));
>> +             drmClose(dev.fd);
>> +             return -1;
>> +     }
>> +
>> +     dev.resources = get_resources(&dev);
>> +     if (!dev.resources) {
>> +             drmClose(dev.fd);
>> +             return 1;
>> +     }
>> +
>> +     for (i = 0; i < count; i++) {
>> +             if (pipe_resolve_connectors(&dev, &pipe_args[i]) < 0) {
>> +                     free_resources(dev.resources);
>> +                     drmClose(dev.fd);
>> +                     return 1;
>> +             }
>> +     }
>> +
>> +#define dump_resource(dev, res) if (res) dump_##res(dev)
>> +
>> +     dump_resource(&dev, encoders);
>> +     dump_resource(&dev, connectors);
>> +     dump_resource(&dev, crtcs);
>> +     dump_resource(&dev, planes);
>> +     dump_resource(&dev, framebuffers);
>> +
>> +     dev.req = drmModeAtomicAlloc();
>> +
>> +     for (i = 0; i < prop_count; ++i)
>> +             set_property(&dev, &prop_args[i]);
>> +
>> +     if (count && plane_count) {
>> +             uint64_t cap = 0;
>> +
>> +             ret = drmGetCap(dev.fd, DRM_CAP_DUMB_BUFFER, &cap);
>> +             if (ret || cap == 0) {
>> +                     fprintf(stderr, "driver doesn't support the dumb buffer API\n");
>> +                     drmModeAtomicFree(dev.req);
>> +                     return 1;
>> +             }
>> +
>> +             set_mode(&dev, pipe_args, count);
>> +             set_planes(&dev, plane_args, plane_count, false);
>> +
>> +             ret = drmModeAtomicCommit(dev.fd, dev.req, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>> +             if (ret) {
>> +                     fprintf(stderr, "Atomic Commit failed [1]\n");
>> +                     return 1;
>> +             }
>> +
>> +             gettimeofday(&pipe_args->start, NULL);
>> +             pipe_args->swap_count = 0;
>> +
>> +             while (test_loop) {
>> +                     drmModeAtomicFree(dev.req);
>> +                     dev.req = drmModeAtomicAlloc();
>> +                     set_planes(&dev, plane_args, plane_count, true);
>> +
>> +                     ret = drmModeAtomicCommit(dev.fd, dev.req, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>> +                     if (ret) {
>> +                             fprintf(stderr, "Atomic Commit failed [2]\n");
>> +                             return 1;
>> +                     }
>> +
>> +                     pipe_args->swap_count++;
>> +                     if (pipe_args->swap_count == 60) {
>> +                             struct timeval end;
>> +                             double t;
>> +
>> +                             gettimeofday(&end, NULL);
>> +                             t = end.tv_sec + end.tv_usec * 1e-6 -
>> +                                 (pipe_args->start.tv_sec + pipe_args->start.tv_usec * 1e-6);
>> +                             fprintf(stderr, "freq: %.02fHz\n", pipe_args->swap_count / t);
>> +                             pipe_args->swap_count = 0;
>> +                             pipe_args->start = end;
>> +                     }
>> +             }
>> +
>> +             if (drop_master)
>> +                     drmDropMaster(dev.fd);
>> +
>> +             getchar();
>> +
>> +             drmModeAtomicFree(dev.req);
>> +             dev.req = drmModeAtomicAlloc();
>> +
>> +             clear_mode(&dev, pipe_args, count);
>> +             clear_planes(&dev, plane_args, plane_count);
>> +             ret = drmModeAtomicCommit(dev.fd, dev.req, DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
>> +             if (ret) {
>> +                     fprintf(stderr, "Atomic Commit failed\n");
>> +                     return 1;
>> +             }
>> +
>> +             clear_FB(&dev, plane_args, plane_count);
>> +     }
>> +
>> +     drmModeAtomicFree(dev.req);
>> +     free_resources(dev.resources);
>> +
>> +     return 0;
>> +}
>> --
>> 2.15.0
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel


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