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#include <cstdio>
#include <fstream>
#include <unistd.h>
#include <kms++/kms++.h>
#include <kms++util/kms++util.h>
using namespace std;
using namespace kms;
static void read_frame(ifstream& is, DumbFramebuffer* fb, Crtc* crtc, Plane* plane)
{
for (unsigned i = 0; i < fb->num_planes(); ++i)
is.read((char*)fb->map(i), fb->size(i));
unsigned w = min(crtc->width(), fb->width());
unsigned h = min(crtc->height(), fb->height());
int r = crtc->set_plane(plane, *fb,
0, 0, w, h,
0, 0, fb->width(), fb->height());
ASSERT(r == 0);
}
static const char* usage_str =
"Usage: kmsview [-t <ms>] <file> <width> <height> <fourcc>\n\n"
"Options:\n"
" -t, --time Milliseconds to sleep between frames\n"
;
static void usage()
{
puts(usage_str);
}
int main(int argc, char** argv)
{
uint32_t time = 0;
string dev_path = "/dev/dri/card0";
OptionSet optionset = {
Option("|device=", [&dev_path](string s)
{
dev_path = s;
}),
Option("t|time=", [&time](const string& str)
{
time = stoul(str);
}),
Option("h|help", []()
{
usage();
exit(-1);
}),
};
optionset.parse(argc, argv);
vector<string> params = optionset.params();
if (params.size() != 4) {
usage();
exit(-1);
}
string filename = params[0];
uint32_t w = stoi(params[1]);
uint32_t h = stoi(params[2]);
string modestr = params[3];
auto pixfmt = FourCCToPixelFormat(modestr);
ifstream is(filename, ifstream::binary);
is.seekg(0, std::ios::end);
unsigned fsize = is.tellg();
is.seekg(0);
Card card(dev_path);
ResourceManager res(card);
auto conn = res.reserve_connector();
auto crtc = res.reserve_crtc(conn);
auto plane = res.reserve_overlay_plane(crtc, pixfmt);
FAIL_IF(!plane, "available plane not found");
auto fb = new DumbFramebuffer(card, w, h, pixfmt);
unsigned frame_size = 0;
for (unsigned i = 0; i < fb->num_planes(); ++i)
frame_size += fb->size(i);
unsigned num_frames = fsize / frame_size;
printf("file size %u, frame size %u, frames %u\n", fsize, frame_size, num_frames);
for (unsigned i = 0; i < num_frames; ++i) {
printf("frame %d", i); fflush(stdout);
read_frame(is, fb, crtc, plane);
if (!time) {
getchar();
} else {
usleep(time * 1000);
printf("\n");
}
}
is.close();
if (time) {
printf("press enter to exit\n");
getchar();
}
delete fb;
}
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