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#include "../include/Video.hpp"
#include <mpv/client.h>
#include <mpv/opengl_cb.h>
#include <clocale>
#include <SFML/Config.hpp>
#if defined(SFML_SYSTEM_WINDOWS)
#ifdef _MSC_VER
#include <windows.h>
#endif
#include <GL/gl.h>
#include <GL/glx.h>
#elif defined(SFML_SYSTEM_LINUX) || defined(SFML_SYSTEM_FREEBSD)
#if defined(SFML_OPENGL_ES)
#include <GLES/gl.h>
#include <GLES/glext.h>
#else
#include <GL/gl.h>
#endif
#include <GL/glx.h>
#define glGetProcAddress glXGetProcAddress
#elif defined(SFML_SYSTEM_MACOS)
#include <OpenGL/gl.h>
#elif defined (SFML_SYSTEM_IOS)
#include <OpenGLES/ES1/gl.h>
#include <OpenGLES/ES1/glext.h>
#elif defined (SFML_SYSTEM_ANDROID)
#include <GLES/gl.h>
#include <GLES/glext.h>
// We're not using OpenGL ES 2+ yet, but we can use the sRGB extension
#include <GLES2/gl2ext.h>
#endif
using namespace std;
namespace dchat
{
void* getProcAddressMpv(void *funcContext, const char *name)
{
return (void*)glGetProcAddress((const GLubyte*)name);
}
void onMpvRedraw(void *rawVideo)
{
Video *video = (Video*)rawVideo;
++video->redrawCounter;
}
Video::Video(unsigned int width, unsigned int height, const char *file, bool loop) :
redrawCounter(0),
context(sf::ContextSettings(), width, height),
mpv(nullptr),
mpvGl(nullptr),
textureBuffer(new sf::Uint8[width * height * 4]), // 4 = red, green, blue and alpha
alive(true)
{
context.setActive(true);
if(!texture.create(width, height))
throw VideoInitializationException("Failed to create texture for video");
texture.setSmooth(true);
// mpv_create requires LC_NUMERIC to be set to "C" for some reason, see mpv_create documentation
std::setlocale(LC_NUMERIC, "C");
mpv = mpv_create();
if(!mpv)
throw VideoInitializationException("Failed to create mpv handle");
if(mpv_initialize(mpv) < 0)
throw VideoInitializationException("Failed to initialize mpv");
mpv_set_option_string(mpv, "vo", "opengl-cb");
mpv_set_option_string(mpv, "hwdec", "auto");
if(loop)
mpv_set_option_string(mpv, "loop", "inf");
mpvGl = (mpv_opengl_cb_context*)mpv_get_sub_api(mpv, MPV_SUB_API_OPENGL_CB);
if(!mpvGl)
throw VideoInitializationException("Failed to initialize mpv opengl render context");
mpv_opengl_cb_set_update_callback(mpvGl, onMpvRedraw, this);
if(mpv_opengl_cb_init_gl(mpvGl, nullptr, getProcAddressMpv, nullptr) < 0)
throw VideoInitializationException("Failed to initialize mpv gl callback func");
renderThread = thread([this, width, height]()
{
context.setActive(true);
while(alive)
{
while(true)
{
mpv_event *mpvEvent = mpv_wait_event(mpv, 0.0);
if(mpvEvent->event_id == MPV_EVENT_NONE)
break;
else if(mpvEvent->event_id == MPV_EVENT_SHUTDOWN)
return;
}
if(redrawCounter > 0)
{
--redrawCounter;
context.setActive(true);
renderMutex.lock();
//mpv_render_context_render(mpvGl, params);
mpv_opengl_cb_draw(mpvGl, 0, width, height);
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, textureBuffer);
texture.update(textureBuffer);
sprite.setTexture(texture, true);
mpv_opengl_cb_report_flip(mpvGl, 0);
renderMutex.unlock();
}
this_thread::sleep_for(chrono::milliseconds(10));
}
});
const char *cmd[] = { "loadfile", file, nullptr };
mpv_command(mpv, cmd);
context.setActive(false);
}
Video::~Video()
{
alive = false;
renderThread.join();
lock_guard<mutex> lock(renderMutex);
context.setActive(true);
if(mpvGl)
mpv_opengl_cb_set_update_callback(mpvGl, nullptr, nullptr);
delete[] textureBuffer;
mpv_opengl_cb_uninit_gl(mpvGl);
mpv_detach_destroy(mpv);
}
void Video::setPosition(float x, float y)
{
sprite.setPosition(x, y);
}
void Video::draw(sf::RenderWindow &window)
{
lock_guard<mutex> lock(renderMutex);
window.draw(sprite);
}
}
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