#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <libdrm/drm_fourcc.h>
#define WIDTH 640
#define HEIGHT 480
#define MAX_BUFFERS 64
#include "sdl.h"
struct pixel {
float r, g, b, a;
};
struct pw_version {
int major;
int minor;
int micro;
};
struct modifier_info {
uint32_t n_modifiers;
uint64_t *modifiers;
};
struct data {
const char *path;
SDL_Renderer *renderer;
SDL_Window *window;
SDL_Texture *texture;
SDL_Texture *cursor;
int32_t stride;
uint32_t n_mod_info;
struct modifier_info mod_info[1];
int counter;
};
static struct pw_version parse_pw_version(const char* version) {
struct pw_version pw_version;
sscanf(version, "%d.%d.%d", &pw_version.major, &pw_version.minor,
&pw_version.micro);
return pw_version;
}
static bool has_pw_version(int major, int minor, int micro) {
struct pw_version pw_version = parse_pw_version(pw_get_library_version());
printf("PW Version: %d.%d.%d\n", pw_version.major, pw_version.minor,
pw_version.micro);
return major <= pw_version.major && minor <= pw_version.minor && micro <= pw_version.micro;
}
static void init_modifiers(struct data *data)
{
data->n_mod_info = 1;
data->mod_info[0].n_modifiers = 2;
data->mod_info[0].modifiers = (uint64_t*)malloc(2*sizeof(uint32_t));
data->mod_info[0].modifiers[0] = DRM_FORMAT_MOD_LINEAR;
data->mod_info[0].modifiers[0] = DRM_FORMAT_MOD_INVALID;
}
static void destroy_modifiers(struct data *data)
{
free(data->mod_info[0].modifiers);
data->mod_info[0].n_modifiers = 0;
}
static void strip_modifier(
struct data *data, uint32_t
spa_format, uint64_t modifier)
{
return;
struct modifier_info *mod_info = &data->mod_info[0];
uint32_t counter = 0;
if (has_pw_version(0,3,40)) {
printf("Dropping a single modifier\n");
for (uint32_t i = 0; i < mod_info->n_modifiers; i++) {
if (mod_info->modifiers[i] == modifier)
continue;
mod_info->modifiers[counter++] = mod_info->modifiers[i];
}
} else {
printf("Dropping all modifiers\n");
counter = 0;
}
mod_info->n_modifiers = counter;
}
static void handle_events(struct data *data)
{
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
break;
}
}
}
uint64_t *modifiers, int modifier_count)
{
int i, c;
if (modifier_count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
} else if (modifier_count > 0) {
for (i = 0, c = 0; i < modifier_count; i++) {
if (c++ == 0)
}
}
info->max_texture_height)),
0);
0);
}
static void
on_process(void *_data)
{
struct data *data = _data;
void *sdata, *ddata;
int sstride, dstride, ostride;
uint32_t i;
uint8_t *src, *dst;
b = NULL;
while (true) {
break;
if (b)
b = t;
}
if (b == NULL) {
return;
}
handle_events(data);
printf("Failed to import dmabuf, stripping modifier %"PRIu64"\n", data->format.info.raw.modifier);
strip_modifier(data, data->format.info.raw.format, data->format.info.raw.modifier);
goto done;
}
goto done;
if (SDL_LockTexture(data->texture, NULL, &ddata, &dstride) < 0) {
fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
goto done;
}
ostride =
SPA_MIN(sstride, dstride);
src = sdata;
dst = ddata;
for (i = 0; i < data->size.height; i++) {
memcpy(dst, src, ostride);
src += sstride;
dst += dstride;
}
SDL_UnlockTexture(data->texture);
SDL_RenderClear(data->renderer);
SDL_RenderCopy(data->renderer, data->texture, NULL, NULL);
SDL_RenderPresent(data->renderer);
done:
}
{
struct data *data = _data;
switch (state) {
break;
break;
default:
break;
}
}
static void
on_stream_param_changed(
void *_data, uint32_t
id,
const struct spa_pod *param)
{
struct data *data = _data;
uint8_t params_buffer[1024];
Uint32 sdl_format;
void *d;
return;
fprintf(stderr, "got format:\n");
if (
spa_format_parse(param, &data->format.media_type, &data->format.media_subtype) < 0)
return;
return;
sdl_format = id_to_sdl_format(data->format.info.raw.format);
data->size = data->format.info.raw.size;
if (sdl_format == SDL_PIXELFORMAT_UNKNOWN) {
return;
}
data->texture = SDL_CreateTexture(data->renderer,
sdl_format,
SDL_TEXTUREACCESS_STREAMING,
data->size.width,
data->size.height);
SDL_LockTexture(data->texture, NULL, &d, &data->stride);
SDL_UnlockTexture(data->texture);
}
.state_changed = on_stream_state_changed,
.param_changed = on_stream_param_changed,
.process = on_process,
};
{
SDL_RendererInfo info;
int n_params = 0;
SDL_GetRendererInfo(data->renderer, &info);
if (data->mod_info[0].n_modifiers > 0) {
params[n_params++] = build_format(b, &info,
SPA_VIDEO_FORMAT_RGB, data->mod_info[0].modifiers, data->mod_info[0].n_modifiers);
}
for (int i=0; i < n_params; i++) {
}
return n_params;
}
static void reneg_format(void *_data, uint64_t expiration)
{
struct data *data = (struct data*) _data;
uint8_t buffer[1024];
uint32_t n_params;
if (data->format.info.raw.format == 0)
return;
fprintf(stderr, "renegotiate formats:\n");
n_params = build_formats(data, &b, params);
}
static void do_quit(void *userdata, int signal_number)
{
struct data *data = userdata;
}
int main(int argc, char *argv[])
{
struct data data = { 0, };
uint8_t buffer[1024];
int res, n_params;
"video-play-reneg",
NULL),
&stream_events,
data.path = argc > 1 ? argv[1] : NULL;
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "can't initialize SDL: %s\n", SDL_GetError());
return -1;
}
if (SDL_CreateWindowAndRenderer
(WIDTH, HEIGHT, SDL_WINDOW_RESIZABLE, &
data.window, &
data.renderer)) {
fprintf(stderr, "can't create window: %s\n", SDL_GetError());
return -1;
}
printf("supported formats:\n");
n_params = build_formats(&
data, &b, params);
params, n_params)) < 0) {
return -1;
}
destroy_modifiers(&
data);
SDL_DestroyTexture(
data.texture);
SDL_DestroyTexture(
data.cursor);
SDL_DestroyRenderer(
data.renderer);
SDL_DestroyWindow(
data.window);
return 0;
}