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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <getopt.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <libdrm/drm_fourcc.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <gbm.h>
#include <epoxy/gl.h>
#include <epoxy/egl.h>
#include <cairo.h>
#include <pixman.h>
#include "ttytools.h"
#include "drmtools.h"
#include "render.h"
#include "image.h"
/* ------------------------------------------------------------------ */
/* dumb fb */
static struct drm_mode_create_dumb creq;
static const struct fbformat *fmt = NULL;
static uint8_t *fbmem;
/* cairo */
static cairo_surface_t *cs;
/* user options */
static cairo_surface_t *image;
/* ------------------------------------------------------------------ */
static void drm_draw(void)
{
char name[64];
char info1[80], info2[80], info3[80];
cairo_t *cr;
snprintf(info1, sizeof(info1), "drm driver: %s, v%d.%d.%d (%s)",
version->name, version->version_major, version->version_minor,
version->version_patchlevel, version->desc);
drm_conn_name(conn, name, sizeof(name));
snprintf(info2, sizeof(info2), "%dx%d, output %s",
mode->hdisplay, mode->vdisplay, name);
if (fmt->fourcc) {
snprintf(info3, sizeof(info3),
"dumb drm buffer, bpp %d, fourcc %c%c%c%c (ADDFB2)",
fmt->bpp,
(fmt->fourcc >> 0) & 0xff,
(fmt->fourcc >> 8) & 0xff,
(fmt->fourcc >> 16) & 0xff,
(fmt->fourcc >> 24) & 0xff);
} else {
snprintf(info3, sizeof(info3),
"dumb drm buffer, bpp %d, depth %d (legacy ADDFB)",
fmt->bpp, fmt->depth);
}
cr = cairo_create(cs);
if (image) {
render_image(cr, mode->hdisplay, mode->vdisplay, image);
} else {
render_test(cr, mode->hdisplay, mode->vdisplay, info1, info2, info3);
}
cairo_destroy(cr);
}
/* ------------------------------------------------------------------ */
static void drm_init_dumb_fb(void)
{
struct drm_mode_map_dumb mreq;
uint32_t zero = 0;
int rc;
/* create framebuffer */
memset(&creq, 0, sizeof(creq));
creq.width = mode->hdisplay;
creq.height = mode->vdisplay;
creq.bpp = fmt->bpp;
rc = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &creq);
if (rc < 0) {
fprintf(stderr, "DRM_IOCTL_MODE_CREATE_DUMB: %s\n", strerror(errno));
exit(1);
}
if (fmt->fourcc) {
rc = drmModeAddFB2(fd, creq.width, creq.height, fmt->fourcc,
&creq.handle, &creq.pitch, &zero,
&fb_id, 0);
if (rc < 0) {
fprintf(stderr, "drmModeAddFB2() failed (fourcc %c%c%c%c)\n",
(fmt->fourcc >> 0) & 0xff,
(fmt->fourcc >> 8) & 0xff,
(fmt->fourcc >> 16) & 0xff,
(fmt->fourcc >> 24) & 0xff);
exit(1);
}
} else {
rc = drmModeAddFB(fd, creq.width, creq.height, fmt->depth, fmt->bpp,
creq.pitch, creq.handle, &fb_id);
if (rc < 0) {
fprintf(stderr, "drmModeAddFB() failed (bpp %d, depth %d)\n",
fmt->bpp, fmt->depth);
exit(1);
}
}
/* map framebuffer */
memset(&mreq, 0, sizeof(mreq));
mreq.handle = creq.handle;
rc = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mreq);
if (rc < 0) {
fprintf(stderr, "DRM_IOCTL_MODE_MAP_DUMB: %s\n", strerror(errno));
exit(1);
}
fbmem = mmap(0, creq.size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, mreq.offset);
if (fbmem == MAP_FAILED) {
fprintf(stderr, "framebuffer mmap: %s\n", strerror(errno));
exit(1);
}
cs = cairo_image_surface_create_for_data(fbmem,
fmt->cairo,
creq.width,
creq.height,
creq.pitch);
}
static void drm_draw_dumb_fb(void)
{
drm_draw();
drmModeDirtyFB(fd, fb_id, 0, 0);
}
/* ------------------------------------------------------------------ */
static void usage(FILE *fp)
{
fprintf(fp,
"\n"
"usage: drmtest [ options ]\n"
"\n"
"options:\n"
" -h print this\n"
" -c <nr> pick card\n"
" -o <name> pick output\n"
" -s <secs> set sleep time\n"
" -i <file> load and display image <file>\n"
" -f <fmt> pick framebuffer format\n"
" -m <mode> pick video mode format\n"
"\n");
}
int main(int argc, char **argv)
{
int card = 0;
int secs = 60;
char *output = NULL;
char *format = NULL;
char *modename = NULL;
char buf[32];
int c,i;
for (;;) {
c = getopt(argc, argv, "hc:s:o:i:f:m:");
if (c == -1)
break;
switch (c) {
case 'c':
card = atoi(optarg);
break;
case 's':
secs = atoi(optarg);
break;
case 'i':
image = load_image(optarg);
break;
case 'o':
output = optarg;
break;
case 'f':
format = optarg;
break;
case 'm':
modename = optarg;
break;
case 'h':
usage(stdout);
exit(0);
default:
usage(stderr);
exit(1);
}
}
if (format) {
for (i = 0; i < fmtcnt; i++) {
if (strcmp(format, fmts[i].name) == 0) {
fmt = &fmts[i];
}
}
if (!fmt) {
fprintf(stderr, "unknown format %s, valid choices are:\n", format);
for (i = 0; i < fmtcnt; i++) {
if (fmts[i].cairo == CAIRO_FORMAT_INVALID)
continue;
drm_print_format(stderr, &fmts[i], 4, false);
}
exit(1);
}
} else {
fmt = &fmts[0];
}
drm_init_dev(card, output, modename, false);
drm_init_dumb_fb();
drm_draw_dumb_fb();
drm_show_fb();
tty_raw();
kbd_wait(secs);
read(0, buf, sizeof(buf));
tty_restore();
drm_fini_dev();
return 0;
}
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