a0d3dbc550
Add SubsController, which deals with things like what subtitle file is currently open, rather than the contents of the current subtitle file. Move the rest of the relevant logic from FrameMain there in addition to all of the stuff from AssFile.
438 lines
13 KiB
C++
438 lines
13 KiB
C++
// Copyright (c) 2005-2010, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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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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//
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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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//
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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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// Aegisub Project http://www.aegisub.org/
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/// @file video_display.cpp
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/// @brief Control displaying a video frame obtained from the video context
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/// @ingroup video main_ui
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///
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#include "config.h"
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#include <algorithm>
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#include <wx/combobox.h>
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#include <wx/dataobj.h>
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#include <wx/dcclient.h>
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#include <wx/menu.h>
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#include <wx/textctrl.h>
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#include <wx/toolbar.h>
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#ifdef HAVE_OPENGL_GL_H
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#include <OpenGL/gl.h>
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#else
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#include <GL/gl.h>
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#endif
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#include "video_display.h"
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#include "ass_file.h"
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#include "command/command.h"
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#include "compat.h"
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#include "include/aegisub/context.h"
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#include "include/aegisub/hotkey.h"
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#include "include/aegisub/menu.h"
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#include "options.h"
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#include "spline_curve.h"
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#include "subs_controller.h"
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#include "threaded_frame_source.h"
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#include "utils.h"
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#include "video_out_gl.h"
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#include "video_context.h"
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#include "video_frame.h"
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#include "visual_tool.h"
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/// Attribute list for gl canvases; set the canvases to doublebuffered rgba with an 8 bit stencil buffer
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int attribList[] = { WX_GL_RGBA , WX_GL_DOUBLEBUFFER, WX_GL_STENCIL_SIZE, 8, 0 };
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/// @class VideoOutRenderException
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/// @extends VideoOutException
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/// @brief An OpenGL error occurred while uploading or displaying a frame
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class OpenGlException : public agi::Exception {
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public:
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OpenGlException(const char *func, int err)
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: agi::Exception(from_wx(wxString::Format("%s failed with error code %d", func, err)))
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{ }
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const char * GetName() const { return "video/opengl"; }
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Exception * Copy() const { return new OpenGlException(*this); }
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};
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#define E(cmd) cmd; if (GLenum err = glGetError()) throw OpenGlException(#cmd, err)
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VideoDisplay::VideoDisplay(
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wxToolBar *visualSubToolBar,
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bool freeSize,
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wxComboBox *zoomBox,
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wxWindow* parent,
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agi::Context *c)
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: wxGLCanvas(parent, -1, attribList)
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, autohideTools(OPT_GET("Tool/Visual/Autohide"))
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, con(c)
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, viewport_left(0)
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, viewport_width(0)
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, viewport_bottom(0)
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, viewport_top(0)
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, viewport_height(0)
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, zoomValue(OPT_GET("Video/Default Zoom")->GetInt() * .125 + .125)
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, toolBar(visualSubToolBar)
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, zoomBox(zoomBox)
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, freeSize(freeSize)
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{
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zoomBox->SetValue(wxString::Format("%g%%", zoomValue * 100.));
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zoomBox->Bind(wxEVT_COMMAND_COMBOBOX_SELECTED, &VideoDisplay::SetZoomFromBox, this);
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zoomBox->Bind(wxEVT_COMMAND_TEXT_ENTER, &VideoDisplay::SetZoomFromBoxText, this);
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con->videoController->Bind(EVT_FRAME_READY, &VideoDisplay::UploadFrameData, this);
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slots.push_back(con->videoController->AddVideoOpenListener(&VideoDisplay::UpdateSize, this));
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slots.push_back(con->videoController->AddARChangeListener(&VideoDisplay::UpdateSize, this));
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slots.push_back(con->subsController->AddFileSaveListener(&VideoDisplay::OnSubtitlesSave, this));
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Bind(wxEVT_PAINT, std::bind(&VideoDisplay::Render, this));
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Bind(wxEVT_SIZE, &VideoDisplay::OnSizeEvent, this);
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Bind(wxEVT_CONTEXT_MENU, &VideoDisplay::OnContextMenu, this);
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Bind(wxEVT_ENTER_WINDOW, &VideoDisplay::OnMouseEvent, this);
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Bind(wxEVT_CHAR_HOOK, &VideoDisplay::OnKeyDown, this);
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Bind(wxEVT_LEAVE_WINDOW, &VideoDisplay::OnMouseLeave, this);
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Bind(wxEVT_LEFT_DCLICK, &VideoDisplay::OnMouseEvent, this);
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Bind(wxEVT_LEFT_DOWN, &VideoDisplay::OnMouseEvent, this);
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Bind(wxEVT_LEFT_UP, &VideoDisplay::OnMouseEvent, this);
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Bind(wxEVT_MOTION, &VideoDisplay::OnMouseEvent, this);
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Bind(wxEVT_MOUSEWHEEL, &VideoDisplay::OnMouseWheel, this);
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SetCursor(wxNullCursor);
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c->videoDisplay = this;
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if (con->videoController->IsLoaded())
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con->videoController->JumpToFrame(con->videoController->GetFrameN());
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}
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VideoDisplay::~VideoDisplay () {
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con->videoController->Unbind(EVT_FRAME_READY, &VideoDisplay::UploadFrameData, this);
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}
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bool VideoDisplay::InitContext() {
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if (!IsShownOnScreen())
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return false;
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// If this display is in a minimized detached dialog IsShownOnScreen will
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// return true, but the client size is guaranteed to be 0
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if (GetClientSize() == wxSize(0, 0))
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return false;
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if (!glContext)
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glContext.reset(new wxGLContext(this));
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SetCurrent(*glContext.get());
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return true;
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}
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void VideoDisplay::UploadFrameData(FrameReadyEvent &evt) {
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pending_frame = evt.frame;
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Render();
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}
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void VideoDisplay::Render() try {
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if (!con->videoController->IsLoaded() || !InitContext() || (!videoOut && !pending_frame))
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return;
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if (!videoOut)
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videoOut.reset(new VideoOutGL);
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if (!tool)
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cmd::call("video/tool/cross", con);
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try {
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if (pending_frame) {
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videoOut->UploadFrameData(*pending_frame);
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pending_frame.reset();
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}
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}
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catch (const VideoOutInitException& err) {
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wxLogError(
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"Failed to initialize video display. Closing other running "
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"programs and updating your video card drivers may fix this.\n"
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"Error message reported: %s",
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err.GetMessage());
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con->videoController->SetVideo("");
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return;
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}
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catch (const VideoOutRenderException& err) {
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wxLogError(
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"Could not upload video frame to graphics card.\n"
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"Error message reported: %s",
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err.GetMessage());
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return;
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}
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if (!viewport_height || !viewport_width)
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PositionVideo();
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videoOut->Render(viewport_left, viewport_bottom, viewport_width, viewport_height);
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E(glViewport(0, std::min(viewport_bottom, 0), videoSize.GetWidth(), videoSize.GetHeight()));
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E(glMatrixMode(GL_PROJECTION));
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E(glLoadIdentity());
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E(glOrtho(0.0f, videoSize.GetWidth(), videoSize.GetHeight(), 0.0f, -1000.0f, 1000.0f));
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if (OPT_GET("Video/Overscan Mask")->GetBool()) {
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double ar = con->videoController->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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// 16:9 or wider
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if (ar > 1.75) {
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DrawOverscanMask(.1f, .05f);
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DrawOverscanMask(0.035f, 0.035f);
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}
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// Less wide than 16:9 (use 4:3 standard)
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else {
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DrawOverscanMask(.067f, .05f);
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DrawOverscanMask(0.033f, 0.035f);
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}
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}
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if ((mouse_pos || !autohideTools->GetBool()) && tool)
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tool->Draw();
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SwapBuffers();
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}
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catch (const agi::Exception &err) {
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wxLogError(
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"An error occurred trying to render the video frame on the screen.\n"
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"Error message reported: %s",
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err.GetChainedMessage());
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con->videoController->SetVideo("");
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}
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void VideoDisplay::DrawOverscanMask(float horizontal_percent, float vertical_percent) const {
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Vector2D v(viewport_width, viewport_height);
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Vector2D size = Vector2D(horizontal_percent, vertical_percent) / 2 * v;
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// Clockwise from top-left
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Vector2D corners[] = {
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size,
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Vector2D(viewport_width - size.X(), size),
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v - size,
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Vector2D(size, viewport_height - size.Y())
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};
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// Shift to compensate for black bars
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Vector2D pos(viewport_left, viewport_top);
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for (size_t i = 0; i < 4; ++i)
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corners[i] = corners[i] + pos;
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int count = 0;
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std::vector<float> points;
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for (size_t i = 0; i < 4; ++i) {
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size_t prev = (i + 3) % 4;
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size_t next = (i + 1) % 4;
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count += SplineCurve(
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(corners[prev] + corners[i] * 4) / 5,
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corners[i], corners[i],
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(corners[next] + corners[i] * 4) / 5)
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.GetPoints(points);
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}
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OpenGLWrapper gl;
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gl.SetFillColour(wxColor(30, 70, 200), .5f);
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gl.SetLineColour(*wxBLACK, 0, 1);
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std::vector<int> vstart(1, 0);
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std::vector<int> vcount(1, count);
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gl.DrawMultiPolygon(points, vstart, vcount, Vector2D(viewport_left, viewport_top), Vector2D(viewport_width, viewport_height), true);
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}
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void VideoDisplay::PositionVideo() {
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if (!con->videoController->IsLoaded() || !IsShownOnScreen()) return;
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viewport_left = 0;
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viewport_bottom = GetClientSize().GetHeight() - videoSize.GetHeight();
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viewport_top = 0;
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viewport_width = videoSize.GetWidth();
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viewport_height = videoSize.GetHeight();
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if (freeSize) {
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int vidW = con->videoController->GetWidth();
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int vidH = con->videoController->GetHeight();
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AspectRatio arType = con->videoController->GetAspectRatioType();
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double displayAr = double(viewport_width) / viewport_height;
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double videoAr = arType == AspectRatio::Default ? double(vidW) / vidH : con->videoController->GetAspectRatioValue();
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// Window is wider than video, blackbox left/right
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if (displayAr - videoAr > 0.01f) {
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int delta = viewport_width - videoAr * viewport_height;
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viewport_left = delta / 2;
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viewport_width -= delta;
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}
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// Video is wider than window, blackbox top/bottom
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else if (videoAr - displayAr > 0.01f) {
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int delta = viewport_height - viewport_width / videoAr;
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viewport_top = viewport_bottom = delta / 2;
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viewport_height -= delta;
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}
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}
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if (tool)
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tool->SetDisplayArea(viewport_left, viewport_top, viewport_width, viewport_height);
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Render();
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}
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void VideoDisplay::UpdateSize() {
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if (!con->videoController->IsLoaded() || !IsShownOnScreen()) return;
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videoSize.Set(con->videoController->GetWidth(), con->videoController->GetHeight());
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videoSize *= zoomValue;
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if (con->videoController->GetAspectRatioType() != AspectRatio::Default)
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videoSize.SetWidth(videoSize.GetHeight() * con->videoController->GetAspectRatioValue());
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wxEventBlocker blocker(this);
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if (freeSize) {
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wxWindow *top = GetParent();
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while (!top->IsTopLevel()) top = top->GetParent();
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wxSize cs = GetClientSize();
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wxSize oldSize = top->GetSize();
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top->SetSize(top->GetSize() + videoSize - cs);
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SetClientSize(cs + top->GetSize() - oldSize);
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}
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else {
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SetMinClientSize(videoSize);
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SetMaxClientSize(videoSize);
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GetGrandParent()->Layout();
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}
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PositionVideo();
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}
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void VideoDisplay::OnSizeEvent(wxSizeEvent &event) {
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if (freeSize) {
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videoSize = GetClientSize();
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PositionVideo();
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zoomValue = double(viewport_height) / con->videoController->GetHeight();
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zoomBox->ChangeValue(wxString::Format("%g%%", zoomValue * 100.));
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}
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else {
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PositionVideo();
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}
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}
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void VideoDisplay::OnMouseEvent(wxMouseEvent& event) {
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if (event.ButtonDown())
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SetFocus();
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last_mouse_pos = mouse_pos = event.GetPosition();
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if (tool)
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tool->OnMouseEvent(event);
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}
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void VideoDisplay::OnMouseLeave(wxMouseEvent& event) {
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mouse_pos = Vector2D();
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if (tool)
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tool->OnMouseEvent(event);
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}
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void VideoDisplay::OnMouseWheel(wxMouseEvent& event) {
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if (int wheel = event.GetWheelRotation()) {
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if (ForwardMouseWheelEvent(this, event))
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SetZoom(zoomValue + .125 * (wheel / event.GetWheelDelta()));
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}
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}
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void VideoDisplay::OnContextMenu(wxContextMenuEvent&) {
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if (!context_menu.get()) context_menu.reset(menu::GetMenu("video_context", con));
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SetCursor(wxNullCursor);
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menu::OpenPopupMenu(context_menu.get(), this);
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}
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void VideoDisplay::OnKeyDown(wxKeyEvent &event) {
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hotkey::check("Video", con, event);
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}
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void VideoDisplay::SetZoom(double value) {
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zoomValue = std::max(value, .125);
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size_t selIndex = zoomValue / .125 - 1;
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if (selIndex < zoomBox->GetCount())
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zoomBox->SetSelection(selIndex);
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zoomBox->ChangeValue(wxString::Format("%g%%", zoomValue * 100.));
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UpdateSize();
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}
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void VideoDisplay::SetZoomFromBox(wxCommandEvent &) {
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int sel = zoomBox->GetSelection();
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if (sel != wxNOT_FOUND) {
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zoomValue = (sel + 1) * .125;
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UpdateSize();
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}
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}
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void VideoDisplay::SetZoomFromBoxText(wxCommandEvent &) {
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wxString strValue = zoomBox->GetValue();
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if (strValue.EndsWith("%"))
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strValue.RemoveLast();
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double value;
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if (strValue.ToDouble(&value))
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SetZoom(value / 100.);
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}
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void VideoDisplay::SetTool(VisualToolBase *new_tool) {
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toolBar->ClearTools();
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toolBar->Realize();
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toolBar->Show(false);
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tool.reset(new_tool);
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tool->SetToolbar(toolBar);
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// Update size as the new typesetting tool may have changed the subtoolbar size
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UpdateSize();
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}
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bool VideoDisplay::ToolIsType(std::type_info const& type) const {
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return tool && typeid(*tool) == type;
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}
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Vector2D VideoDisplay::GetMousePosition() const {
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return last_mouse_pos ? tool->ToScriptCoords(last_mouse_pos) : last_mouse_pos;
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}
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void VideoDisplay::Unload() {
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glContext.reset();
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videoOut.reset();
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tool.reset();
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pending_frame.reset();
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}
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void VideoDisplay::OnSubtitlesSave() {
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con->ass->SetScriptInfo("Video Zoom Percent", std::to_string(zoomValue));
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}
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