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// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// -----------------------------------------------------------------------------
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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#include <wx/glcanvas.h>
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#include <OpenGL/GL.h>
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#include <OpenGL/glu.h>
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#include <wx/clipbrd.h>
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#include <wx/filename.h>
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#include <wx/config.h>
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#include "video_display.h"
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#include "video_provider_manager.h"
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#include "ass_dialogue.h"
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#include "ass_style.h"
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#include "subs_grid.h"
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#include "video_out_gl.h"
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#include "video_box.h"
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#include "video_slider.h"
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#include "visual_tool.h"
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#include "visual_tool_cross.h"
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#include "visual_tool_rotatez.h"
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#include "visual_tool_rotatexy.h"
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#include "visual_tool_scale.h"
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#include "visual_tool_clip.h"
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#include "visual_tool_vector_clip.h"
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#include "visual_tool_drag.h"
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VIDEO_MENU_COPY_COORDS = 1230,
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VIDEO_MENU_COPY_TO_CLIPBOARD,
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VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,
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VIDEO_MENU_SAVE_SNAPSHOT,
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VIDEO_MENU_SAVE_SNAPSHOT_RAW
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BEGIN_EVENT_TABLE(VideoDisplay, wxGLCanvas)
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EVT_MOUSE_EVENTS(VideoDisplay::OnMouseEvent)
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EVT_KEY_DOWN(VideoDisplay::OnKey)
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EVT_PAINT(VideoDisplay::OnPaint)
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EVT_SIZE(VideoDisplay::OnSizeEvent)
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EVT_ERASE_BACKGROUND(VideoDisplay::OnEraseBackground)
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EVT_MENU(VIDEO_MENU_COPY_COORDS,VideoDisplay::OnCopyCoords)
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EVT_MENU(VIDEO_MENU_COPY_TO_CLIPBOARD,VideoDisplay::OnCopyToClipboard)
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EVT_MENU(VIDEO_MENU_SAVE_SNAPSHOT,VideoDisplay::OnSaveSnapshot)
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EVT_MENU(VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,VideoDisplay::OnCopyToClipboardRaw)
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EVT_MENU(VIDEO_MENU_SAVE_SNAPSHOT_RAW,VideoDisplay::OnSaveSnapshotRaw)
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WX_GL_STENCIL_SIZE, 8, // stencil buffer is needed for the shape overlay drawing stuff
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WX_GL_MIN_RED, 8, // wx implementation thing:
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WX_GL_MIN_GREEN, 8, // wxMSW sets pfd.cColorBits to 0 if given an attribList
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WX_GL_MIN_BLUE, 8, // where none of WX_GL_MIN_(RED|GREEN|BLUE) or WX_GL_BUFFER_SIZE are set.
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WX_GL_BUFFER_SIZE, 24, // WX_GL_BUFFER_SIZE must be set last or it will get a nonsense value.
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VideoDisplay::VideoDisplay(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style, const wxString& name)
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: wxGLCanvas (parent, id, attribList, pos, size, style, name)
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, videoOut(new VideoOutGL())
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ControlSlider = NULL;
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PositionDisplay = NULL;
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SetCursor(wxNullCursor);
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VideoDisplay::~VideoDisplay () {
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VideoContext::Get()->RemoveDisplay(this);
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void VideoDisplay::ShowCursor(bool show) {
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if (show) SetCursor(wxNullCursor);
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// Bleeeh! Hate this 'solution':
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static char cursor_image[] = {0};
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wxCursor cursor(cursor_image, 8, 1, -1, -1, cursor_image);
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wxCursor cursor(wxCURSOR_BLANK);
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void VideoDisplay::SetFrame(int frameNumber) {
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VideoContext *context = VideoContext::Get();
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ControlSlider->SetValue(frameNumber);
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// Get time for frame
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int time = VFR_Output.GetTimeAtFrame(frameNumber, true, true);
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int h = time / 3600000;
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int m = time % 3600000 / 60000;
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int s = time % 60000 / 1000;
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int ms = time % 1000;
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// Set the text box for frame number and time
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PositionDisplay->SetValue(wxString::Format(_T("%01i:%02i:%02i.%03i - %i"), h, m, s, ms, frameNumber));
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if (context->GetKeyFrames().Index(frameNumber) != wxNOT_FOUND) {
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// Set the background color to indicate this is a keyframe
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PositionDisplay->SetBackgroundColour(Options.AsColour(_T("Grid selection background")));
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PositionDisplay->SetForegroundColour(Options.AsColour(_T("Grid selection foreground")));
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PositionDisplay->SetBackgroundColour(wxNullColour);
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PositionDisplay->SetForegroundColour(wxNullColour);
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if (AssDialogue *curLine = context->curLine) {
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startOff = time - curLine->Start.GetMS();
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endOff = time - curLine->End.GetMS();
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if (startOff > 0) startSign = _T("+");
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if (endOff > 0) endSign = _T("+");
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// Set the text box for time relative to active subtitle line
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SubsPosition->SetValue(wxString::Format(_T("%s%ims; %s%ims"), startSign.c_str(), startOff, endSign.c_str(), endOff));
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if (IsShownOnScreen() && visual) visual->Refresh();
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// Render the new frame
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if (context->IsLoaded()) {
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AegiVideoFrame frame;
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frame = context->GetFrame(frameNumber);
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catch (const wxChar *err) {
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_T("Failed seeking video. The video file may be corrupt or incomplete.\n")
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_T("Error message reported: %s"),
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catch (wxString err) {
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_T("Failed seeking video. The video file may be corrupt or incomplete.\n")
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_T("Error message reported: %s"),
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_T("Failed seeking video. The video file may be corrupt or incomplete.\n")
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_T("No further error message given."));
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videoOut->UploadFrameData(frame);
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catch (const VideoOutInitException& err) {
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L"Failed to initialize video display. Closing other running programs and updating your video card drivers may fix this.\n"
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L"Error message reported: %s",
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err.GetMessage().c_str());
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catch (const VideoOutRenderException& err) {
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L"Could not upload video frame to graphics card.\n"
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L"Error message reported: %s",
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err.GetMessage().c_str());
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currentFrame = frameNumber;
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void VideoDisplay::Render() try {
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if (!IsShownOnScreen()) return;
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wxASSERT(wxIsMainThread());
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VideoContext *context = VideoContext::Get();
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if (!context->IsLoaded()) return;
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SetCurrent(*context->GetGLContext(this));
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int w, h, sw, sh, pw, ph;
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GetClientSize(&w, &h);
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context->GetScriptSize(sw, sh);
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pw = context->GetWidth();
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ph = context->GetHeight();
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// Freesized transform
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float thisAr = float(w)/float(h);
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float vidAr = context->GetAspectRatioType() == 0 ? float(pw)/float(ph) : context->GetAspectRatioValue();
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// Window is wider than video, blackbox left/right
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if (thisAr - vidAr > 0.01f) {
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int delta = int(w-vidAr*h);
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// Video is wider than window, blackbox top/bottom
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else if (vidAr - thisAr > 0.01f) {
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int delta = int(h-w/vidAr);
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videoOut->SetViewport(dx1, dy1, dx2, dy2);
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videoOut->Render(sw, sh);
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if (!context->IsPlaying())
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catch (const VideoOutException &err) {
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_T("An error occurred trying to render the video frame on the screen.\n")
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_T("Error message reported: %s"),
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err.GetMessage().c_str());
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VideoContext::Get()->Reset();
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_T("An error occurred trying to render the video frame to screen.\n")
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_T("No further error message given."));
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VideoContext::Get()->Reset();
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///////////////////////////////////
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// TV effects (overscan and so on)
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void VideoDisplay::DrawTVEffects() {
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VideoContext *context = VideoContext::Get();
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context->GetScriptSize(sw,sh);
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bool drawOverscan = Options.AsBool(_T("Show Overscan Mask"));
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// Draw overscan mask
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double ar = context->GetAspectRatioValue();
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// Based on BBC's guidelines: http://www.bbc.co.uk/guidelines/dq/pdf/tv/tv_standards_london.pdf
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DrawOverscanMask(int(sw * 0.1),int(sh * 0.05),wxColour(30,70,200),0.5);
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DrawOverscanMask(int(sw * 0.035),int(sh * 0.035),wxColour(30,70,200),0.5);
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// Less wide than 16:9 (use 4:3 standard)
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DrawOverscanMask(int(sw * 0.067),int(sh * 0.05),wxColour(30,70,200),0.5);
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DrawOverscanMask(int(sw * 0.033),int(sh * 0.035),wxColour(30,70,200),0.5);
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//////////////////////
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// Draw overscan mask
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void VideoDisplay::DrawOverscanMask(int sizeH,int sizeV,wxColour colour,double alpha) {
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VideoContext *context = VideoContext::Get();
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context->GetScriptSize(sw,sh);
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int rad1 = int(sh * 0.05);
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int gapH = sizeH+rad1;
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int gapV = sizeV+rad1;
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int rad2 = (int)sqrt(double(gapH*gapH + gapV*gapV))+1;
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gl.SetFillColour(colour,alpha);
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gl.SetLineColour(wxColour(0,0,0),0.0,1);
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gl.DrawRectangle(gapH,0,sw-gapH,sizeV); // Top
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gl.DrawRectangle(sw-sizeH,gapV,sw,sh-gapV); // Right
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gl.DrawRectangle(gapH,sh-sizeV,sw-gapH,sh); // Bottom
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gl.DrawRectangle(0,gapV,sizeH,sh-gapV); // Left
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gl.DrawRing(gapH,gapV,rad1,rad2,1.0,180.0,270.0); // Top-left
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gl.DrawRing(sw-gapH,gapV,rad1,rad2,1.0,90.0,180.0); // Top-right
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gl.DrawRing(sw-gapH,sh-gapV,rad1,rad2,1.0,0.0,90.0); // Bottom-right
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gl.DrawRing(gapH,sh-gapV,rad1,rad2,1.0,270.0,360.0); // Bottom-left
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void VideoDisplay::UpdateSize() {
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// Don't do anything if it's a free sizing display
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//if (freeSize) return;
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VideoContext *con = VideoContext::Get();
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if (!con->IsLoaded()) return;
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if (!IsShownOnScreen()) return;
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GetClientSize(&w,&h);
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if (con->GetAspectRatioType() == 0) w = int(con->GetWidth() * zoomValue);
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else w = int(con->GetHeight() * zoomValue * con->GetAspectRatioValue());
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h = int(con->GetHeight() * zoomValue);
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// Set Min and Max sizes. This sets the outer size, not client size, so it
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// depends on us not having any borders on the control.
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// Then tell the sizer to re-fit for us.
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box->VideoSizer->Fit(box);
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box->GetParent()->Layout();
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// And finally properly resize to the wanted size, to avoid a glitch when
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// switching between small zoom levels on Windows.
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void VideoDisplay::Reset() {
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// Only calculate sizes if it's visible
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if (!IsShownOnScreen()) return;
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int w = origSize.GetX();
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int h = origSize.GetY();
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SetSizeHints(_w,_h,_w,_h);
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void VideoDisplay::OnPaint(wxPaintEvent& event) {
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void VideoDisplay::OnSizeEvent(wxSizeEvent &event) {
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void VideoDisplay::OnMouseEvent(wxMouseEvent& event) {
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mouse_x = event.GetX();
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mouse_y = event.GetY();
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// Disable when playing
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if (VideoContext::Get()->IsPlaying()) return;
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if (event.ButtonUp(wxMOUSE_BTN_RIGHT)) {
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menu.Append(VIDEO_MENU_SAVE_SNAPSHOT,_("Save PNG snapshot"));
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menu.Append(VIDEO_MENU_COPY_TO_CLIPBOARD,_("Copy image to Clipboard"));
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menu.AppendSeparator();
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menu.Append(VIDEO_MENU_SAVE_SNAPSHOT_RAW,_("Save PNG snapshot (no subtitles)"));
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menu.Append(VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,_("Copy image to Clipboard (no subtitles)"));
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menu.AppendSeparator();
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menu.Append(VIDEO_MENU_COPY_COORDS,_("Copy coordinates to Clipboard"));
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// Show cursor and popup
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// Enforce correct cursor display
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ShowCursor(visualMode != 0);
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if (event.ButtonDown(wxMOUSE_BTN_ANY)) {
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if (visual) visual->OnMouseEvent(event);
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void VideoDisplay::OnKey(wxKeyEvent &event) {
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// FIXME: should these be configurable?
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// Think of the frenchmen and other people not using qwerty layout
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if (event.GetKeyCode() == 'A') SetVisualMode(0);
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if (event.GetKeyCode() == 'S') SetVisualMode(1);
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if (event.GetKeyCode() == 'D') SetVisualMode(2);
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if (event.GetKeyCode() == 'F') SetVisualMode(3);
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if (event.GetKeyCode() == 'G') SetVisualMode(4);
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if (event.GetKeyCode() == 'H') SetVisualMode(5);
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if (event.GetKeyCode() == 'J') SetVisualMode(6);
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void VideoDisplay::SetZoom(double value) {
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//////////////////////
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// Sets zoom position
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void VideoDisplay::SetZoomPos(int value) {
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if (value < 0) value = 0;
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if (value > 15) value = 15;
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SetZoom(double(value+1)/8.0);
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if (zoomBox->GetSelection() != value) zoomBox->SetSelection(value);
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/////////////////////
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void VideoDisplay::OnCopyToClipboard(wxCommandEvent &event) {
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if (wxTheClipboard->Open()) {
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wxTheClipboard->SetData(new wxBitmapDataObject(wxBitmap(VideoContext::Get()->GetFrame(-1).GetImage(),24)));
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wxTheClipboard->Close();
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//////////////////////////
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// Copy to clipboard (raw)
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void VideoDisplay::OnCopyToClipboardRaw(wxCommandEvent &event) {
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if (wxTheClipboard->Open()) {
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wxTheClipboard->SetData(new wxBitmapDataObject(wxBitmap(VideoContext::Get()->GetFrame(-1,true).GetImage(),24)));
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wxTheClipboard->Close();
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void VideoDisplay::OnSaveSnapshot(wxCommandEvent &event) {
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VideoContext::Get()->SaveSnapshot(false);
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//////////////////////
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// Save snapshot (raw)
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void VideoDisplay::OnSaveSnapshotRaw(wxCommandEvent &event) {
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VideoContext::Get()->SaveSnapshot(true);
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/////////////////////
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void VideoDisplay::OnCopyCoords(wxCommandEvent &event) {
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if (wxTheClipboard->Open()) {
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VideoContext::Get()->GetScriptSize(sw,sh);
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int vx = (sw * mouse_x + w/2) / w;
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int vy = (sh * mouse_y + h/2) / h;
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wxTheClipboard->SetData(new wxTextDataObject(wxString::Format(_T("%i,%i"),vx,vy)));
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wxTheClipboard->Close();
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/////////////////////////////
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// Convert mouse coordinates
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void VideoDisplay::ConvertMouseCoords(int &x,int &y) {
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GetClientSize(&w,&h);
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void VideoDisplay::SetVisualMode(int mode) {
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if (visualMode != mode) {
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wxToolBar *toolBar = NULL;
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toolBar = box->visualSubToolBar;
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toolBar->ClearTools();
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toolBar->Show(false);
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if (!box->visualToolBar->GetToolState(mode + Video_Mode_Standard)) box->visualToolBar->ToggleTool(mode + Video_Mode_Standard,true);
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case 0: visual = new VisualToolCross(this); break;
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case 1: visual = new VisualToolDrag(this,toolBar); break;
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case 2: visual = new VisualToolRotateZ(this); break;
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case 3: visual = new VisualToolRotateXY(this); break;
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case 4: visual = new VisualToolScale(this); break;
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case 5: visual = new VisualToolClip(this); break;
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case 6: visual = new VisualToolVectorClip(this,toolBar); break;
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default: visual = NULL;
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// Update size to reflect toolbar changes
added
removed
src/video_display.cpp
