Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

458 lines
9.8 KiB

5 years ago
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: VGUI panel which can play back video, in-engine
//
//=============================================================================
#include "cbase.h"
#include <vgui/IVGui.h>
#include "vgui/IInput.h"
#include <vgui/ISurface.h>
#include "ienginevgui.h"
#include "iclientmode.h"
#include "vgui_video_player.h"
#include "engine/IEngineSound.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
VideoPlayerPanel::VideoPlayerPanel( vgui::Panel *parent, const char *panelName, int nXpos, int nYpos, int nWidth, int nHeight, const char *pVideoFile ) :
BaseClass( parent, panelName ),
m_VideoMaterial( NULL ),
m_VideoFileName( NULL ),
m_VideoLoaded( false ),
m_VideoPlaying( false )
{
Assert( g_pVideo != NULL );
// init all the video realted member vars
ClearVideo();
SetVisible( false );
SetKeyBoardInputEnabled( false );
SetMouseInputEnabled( false );
SetProportional( false );
SetPaintBackgroundEnabled( false );
SetPaintBorderEnabled( false );
// Set us up
SetTall( nHeight );
SetWide( nWidth );
SetPos( nXpos, nYpos );
// use defaults for scheme and control settings for now
// SetScheme( vgui::scheme()->LoadSchemeFromFile( "resource/VideoPlayerPanelScheme.res", "VideoPlayerPanelScheme"));
//LoadControlSettings("resource/UI/VideoPlayerPanel.res");
// Assign video file if supplied
SetVideo( pVideoFile );
SetVisible( true );
}
//-----------------------------------------------------------------------------
// Properly shutdown out materials
//-----------------------------------------------------------------------------
VideoPlayerPanel::~VideoPlayerPanel( void )
{
SetParent( (vgui::Panel *) NULL );
StopVideo();
ClearVideo();
}
bool VideoPlayerPanel::SetVideo( const char *pVideoFile )
{
ClearVideo();
// clearing the video?
if ( pVideoFile == NULL || pVideoFile[0] == 0x00 )
{
return true;
}
// create the material
m_VideoMaterial = g_pVideo->CreateVideoMaterial( "VideoPlayerMaterial", pVideoFile, "GAME",
VideoPlaybackFlags::DEFAULT_MATERIAL_OPTIONS,
VideoSystem::DETERMINE_FROM_FILE_EXTENSION, true );
if ( m_VideoMaterial == NULL )
{
return false;
}
// save filename
int sLen = V_strlen( pVideoFile ) + 1;
m_VideoFileName = new char[ sLen ];
V_strncpy( m_VideoFileName, pVideoFile, sLen );
// compute Playback dimensions
int nWidth, nHeight;
m_VideoMaterial->GetVideoImageSize( &nWidth, &nHeight );
m_VideoMaterial->GetVideoTexCoordRange( &m_flU, &m_flV );
float flFrameRatio = ( (float) GetWide() / (float) GetTall() );
float flVideoRatio = ( (float) nWidth / (float) nHeight );
if ( flVideoRatio > flFrameRatio )
{
m_nPlaybackWidth = GetWide();
m_nPlaybackHeight = ( GetWide() / flVideoRatio );
m_letterBox = 1;
}
else if ( flVideoRatio < flFrameRatio )
{
m_nPlaybackWidth = ( GetTall() * flVideoRatio );
m_nPlaybackHeight = GetTall();
m_letterBox = 2;
}
else
{
m_nPlaybackWidth = GetWide();
m_nPlaybackHeight = GetTall();
m_letterBox = 0;
}
m_pMaterial = m_VideoMaterial->GetMaterial();
m_VideoDuration = m_VideoMaterial->GetVideoDuration();
m_VideoLoaded = true;
return true;
}
void VideoPlayerPanel::ClearVideo()
{
if ( m_VideoPlaying )
{
StopVideo();
}
// Shut down this video, destroy the video material
if ( g_pVideo != NULL && m_VideoMaterial != NULL )
{
g_pVideo->DestroyVideoMaterial( m_VideoMaterial );
m_VideoMaterial = NULL;
}
if ( m_VideoFileName != NULL )
{
delete[] m_VideoFileName;
m_VideoFileName = NULL;
}
m_pMaterial = NULL;
m_VideoLoaded = false;
m_VideoPlaying = false;
m_VideoPaused = false;
m_nPlaybackHeight = 0;
m_nPlaybackWidth = 0;
m_letterBox = 0;
m_flU = 0.0f;
m_flV = 0.0f;
m_VideoDuration = 0.0f;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void VideoPlayerPanel::Activate( void )
{
MoveToFront();
RequestFocus();
SetVisible( true );
SetEnabled( true );
vgui::surface()->SetMinimized( GetVPanel(), false );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void VideoPlayerPanel::OnClose( void )
{
StopVideo();
// enginesound->NotifyEndMoviePlayback();
vgui::surface()->RestrictPaintToSinglePanel( NULL );
SetVisible( false );
MarkForDeletion();
}
//-----------------------------------------------------------------------------
// Purpose: Update and draw the frame
//-----------------------------------------------------------------------------
void VideoPlayerPanel::Paint( void )
{
BaseClass::Paint();
// Get our dimensions
int xpos = 0;
int ypos = 0;
vgui::ipanel()->GetAbsPos( GetVPanel(), xpos, ypos );
// GetPanelPos( xpos, ypos );
int width = GetWide();
int height = GetTall();
// Are we playing the video? Do we even have a video?
if ( !m_VideoLoaded || !m_VideoPlaying )
{
vgui::surface()->DrawSetColor( 0, 0, 0, 255 );
vgui::surface()->DrawFilledRect( 0, 0, width, height );
return;
}
if ( m_VideoMaterial == NULL )
return;
if ( m_VideoMaterial->Update() == false )
{
StopVideo();
return;
}
// Black out the letterbox ares if we have them
if ( m_letterBox != 0 )
{
vgui::surface()->DrawSetColor( 0, 0, 0, 255 );
if ( m_letterBox == 1 ) // bars on top, bottom
{
int excess = ( height - m_nPlaybackHeight );
int top = excess /2;
int bot = excess - top;
vgui::surface()->DrawFilledRect( 0, 0, width, top );
vgui::surface()->DrawFilledRect( 0, height - bot, width, height );
}
if ( m_letterBox == 2 ) // bars on left, right
{
int excess = ( width - m_nPlaybackWidth );
int left = excess /2;
int right = excess - left;
vgui::surface()->DrawFilledRect( 0, 0, left, height );
vgui::surface()->DrawFilledRect( width-right, 0, width, height );
}
}
// Draw the polys to draw this out
CMatRenderContextPtr pRenderContext( materials );
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PushMatrix();
pRenderContext->LoadIdentity();
pRenderContext->Bind( m_pMaterial, NULL );
CMeshBuilder meshBuilder;
IMesh* pMesh = pRenderContext->GetDynamicMesh( true );
meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
float flLeftX = xpos;
float flRightX = xpos + ( m_nPlaybackWidth-1 );
float flTopY = ypos;
float flBottomY = ypos + ( m_nPlaybackHeight-1 );
// Map our UVs to cut out just the portion of the video we're interested in
float flLeftU = 0.0f;
float flTopV = 0.0f;
// We need to subtract off a pixel to make sure we don't bleed
float flRightU = m_flU - ( 1.0f / (float) m_nPlaybackWidth );
float flBottomV = m_flV - ( 1.0f / (float) m_nPlaybackHeight );
// Get the current viewport size
int vx, vy, vw, vh;
pRenderContext->GetViewport( vx, vy, vw, vh );
// map from screen pixel coords to -1..1
flRightX = FLerp( -1, 1, 0, vw, flRightX );
flLeftX = FLerp( -1, 1, 0, vw, flLeftX );
flTopY = FLerp( 1, -1, 0, vh ,flTopY );
flBottomY = FLerp( 1, -1, 0, vh, flBottomY );
float alpha = ((float)GetFgColor()[3]/255.0f);
for ( int corner=0; corner<4; corner++ )
{
bool bLeft = (corner==0) || (corner==3);
meshBuilder.Position3f( (bLeft) ? flLeftX : flRightX, (corner & 2) ? flBottomY : flTopY, 0.0f );
meshBuilder.Normal3f( 0.0f, 0.0f, 1.0f );
meshBuilder.TexCoord2f( 0, (bLeft) ? flLeftU : flRightU, (corner & 2) ? flBottomV : flTopV );
meshBuilder.TangentS3f( 0.0f, 1.0f, 0.0f );
meshBuilder.TangentT3f( 1.0f, 0.0f, 0.0f );
meshBuilder.Color4f( 1.0f, 1.0f, 1.0f, alpha );
meshBuilder.AdvanceVertex();
}
meshBuilder.End();
pMesh->Draw();
pRenderContext->MatrixMode( MATERIAL_VIEW );
pRenderContext->PopMatrix();
pRenderContext->MatrixMode( MATERIAL_PROJECTION );
pRenderContext->PopMatrix();
}
bool VideoPlayerPanel::StartVideo()
{
if ( !m_VideoLoaded )
return false;
// already playing?
if ( m_VideoPlaying )
{
// paused?
if ( m_VideoPaused )
{
return UnpauseVideo();
}
return true;
}
m_VideoPlaying = m_VideoMaterial->StartVideo();
return m_VideoPlaying;
}
bool VideoPlayerPanel::StopVideo()
{
if ( !m_VideoLoaded || !m_VideoPlaying )
return false;
m_VideoMaterial->StopVideo();
m_VideoPlaying = false;
return true;
}
bool VideoPlayerPanel::PauseVideo()
{
if ( !m_VideoLoaded || !m_VideoPlaying )
return false;
if ( !m_VideoPaused )
{
m_VideoMaterial->SetPaused( true );
m_VideoPaused = true;
}
return true;
}
bool VideoPlayerPanel::UnpauseVideo()
{
if ( !m_VideoLoaded || !m_VideoPlaying )
return false;
if ( m_VideoPaused )
{
m_VideoMaterial->SetPaused( false );
m_VideoPaused = false;
}
return true;
}
float VideoPlayerPanel::GetCurrentPlaybackTime()
{
if ( !m_VideoLoaded )
{
return 0.0f;
}
return m_VideoMaterial->GetCurrentVideoTime();
}
bool VideoPlayerPanel::SetCurrentPlaybackTime( float newTime )
{
if ( !m_VideoLoaded )
return false;
if ( newTime < 0.0f || newTime > m_VideoDuration )
return false;
return m_VideoMaterial->SetTime( newTime );
}
bool VideoPlayerPanel::HasAudio()
{
if ( !m_VideoLoaded )
return false;
return m_VideoMaterial->HasAudio();
}
bool VideoPlayerPanel::IsMuted()
{
if ( !m_VideoLoaded )
return false;
return m_VideoMaterial->IsMuted();
}
bool VideoPlayerPanel::SetMute( bool muted )
{
if ( !m_VideoLoaded )
return false;
m_VideoMaterial->SetMuted( muted );
return true;
}
float VideoPlayerPanel::GetVolume()
{
if ( !m_VideoLoaded )
return 0.0f;
return m_VideoMaterial->GetVolume();
}
bool VideoPlayerPanel::SetVolume( float newVolume )
{
if ( !m_VideoLoaded )
return false;
return m_VideoMaterial->SetVolume( newVolume );
}