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Fix detached video crashes.

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Originally committed to SVN as r4701.
This commit is contained in:
Thomas Goyne 2010-07-23 04:15:36 +00:00
parent 242b1ee47b
commit 926b6152f1
6 changed files with 64 additions and 88 deletions
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72
aegisub/src/gl_text.cpp
View file

@ -40,27 +40,30 @@
#include <wx/bitmap.h>
#include <wx/dcmemory.h>
#include <wx/image.h>
#include <algorithm>
#endif
#include "gl_text.h"
#include "utils.h"
#undef max
/// @class OpenGLTextGlyph
/// @brief Struct storing the information needed to draw a glyph
class OpenGLTextGlyph {
public:
wxString str; /// String containing the glyph(s) this is for
int tex; /// OpenGL texture to draw for this glyph
float x1; /// Left x coordinate of this glyph in the containing texture
float x2; /// Right x coordinate of this glyph in the containing texture
float y1; /// Left y coordinate of this glyph in the containing texture
float y2; /// Right y coordinate of this glyph in the containing texture
int w; /// Width of the glyph in pixels
int h; /// Height of the glyph in pixels
struct OpenGLTextGlyph {
wxString str; ///< String containing the glyph(s) this is for
int tex; ///< OpenGL texture to draw for this glyph
float x1; ///< Left x coordinate of this glyph in the containing texture
float x2; ///< Right x coordinate of this glyph in the containing texture
float y1; ///< Left y coordinate of this glyph in the containing texture
float y2; ///< Right y coordinate of this glyph in the containing texture
int w; ///< Width of the glyph in pixels
int h; ///< Height of the glyph in pixels
wxFont font; ///< Font used for this glyph
OpenGLTextGlyph(int value);
OpenGLTextGlyph(int value, wxFont const& font);
void Draw(int x,int y) const;
};
@ -68,14 +71,13 @@ public:
/// @class OpenGLTextTexture
/// @brief OpenGL texture which stores one or more glyphs as sprites
class OpenGLTextTexture {
private:
int x; /// Next x coordinate at which a glyph can be inserted
int y; /// Next y coordinate at which a glyph can be inserted
int nextY; /// Y coordinate of the next line; tracked due to that lines
/// are only as tall as needed to fit the glyphs in them
int width; /// Width of the texture
int height; /// Height of the texture
GLuint tex; /// The texture
int x; ///< Next x coordinate at which a glyph can be inserted
int y; ///< Next y coordinate at which a glyph can be inserted
int nextY; ///< Y coordinate of the next line; tracked due to that lines
///< are only as tall as needed to fit the glyphs in them
int width; ///< Width of the texture
int height; ///< Height of the texture
GLuint tex; ///< The texture
/// Insert the glyph into this texture at the current coordinates
void Insert(OpenGLTextGlyph &glyph);
@ -106,12 +108,7 @@ OpenGLText::OpenGLText()
OpenGLText::~OpenGLText() {
}
OpenGLText& OpenGLText::GetInstance() {
static OpenGLText instance;
return instance;
}
void OpenGLText::DoSetFont(wxString face,int size,bool bold,bool italics) {
void OpenGLText::SetFont(wxString face,int size,bool bold,bool italics) {
// No change required
if (size == fontSize && face == fontFace && bold == fontBold && italics == fontItalics) return;
@ -129,14 +126,14 @@ void OpenGLText::DoSetFont(wxString face,int size,bool bold,bool italics) {
glyphs.clear();
}
void OpenGLText::DoSetColour(wxColour col,float alpha) {
void OpenGLText::SetColour(wxColour col,float alpha) {
r = col.Red() / 255.f;
g = col.Green() / 255.f;
b = col.Blue() / 255.f;
a = alpha;
}
void OpenGLText::DoPrint(const wxString &text,int x,int y) {
void OpenGLText::Print(const wxString &text,int x,int y) {
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
@ -181,7 +178,7 @@ void OpenGLText::DrawString(const wxString &text,int x,int y) {
}
}
void OpenGLText::DoGetExtent(wxString const& text, int &w, int &h) {
void OpenGLText::GetExtent(wxString const& text, int &w, int &h) {
size_t len = text.Length();
lineHeight = 0;
int dx=0,dy=0;
@ -222,7 +219,7 @@ OpenGLTextGlyph const& OpenGLText::GetGlyph(int i) {
}
OpenGLTextGlyph const& OpenGLText::CreateGlyph(int n) {
OpenGLTextGlyph &glyph = glyphs.insert(std::make_pair(n, OpenGLTextGlyph(n))).first->second;
OpenGLTextGlyph &glyph = glyphs.insert(std::make_pair(n, OpenGLTextGlyph(n, font))).first->second;
// Insert into some texture
bool ok = false;
@ -235,7 +232,7 @@ OpenGLTextGlyph const& OpenGLText::CreateGlyph(int n) {
// No texture could fit it, create a new one
if (!ok) {
textures.push_back(boost::shared_ptr<OpenGLTextTexture>(new OpenGLTextTexture(glyph)));
textures.push_back(std::tr1::shared_ptr<OpenGLTextTexture>(new OpenGLTextTexture(glyph)));
}
return glyph;
@ -245,12 +242,10 @@ OpenGLTextGlyph const& OpenGLText::CreateGlyph(int n) {
/// @param w
/// @param h
OpenGLTextTexture::OpenGLTextTexture(OpenGLTextGlyph &glyph) {
using std::max;
x = y = nextY = 0;
width = max(SmallestPowerOf2(glyph.w), 64);
height = max(SmallestPowerOf2(glyph.h), 64);
width = height = max(width, height);
width = std::max(SmallestPowerOf2(glyph.w), 64);
height = std::max(SmallestPowerOf2(glyph.h), 64);
width = height = std::max(width, height);
tex = 0;
// Generate and bind
@ -322,7 +317,7 @@ void OpenGLTextTexture::Insert(OpenGLTextGlyph &glyph) {
// Draw text and convert to image
dc.SetBackground(wxBrush(wxColour(0,0,0)));
dc.Clear();
dc.SetFont(OpenGLText::GetFont());
dc.SetFont(glyph.font);
dc.SetTextForeground(wxColour(255,255,255));
dc.DrawText(glyph.str,0,0);
wxImage img = bmp.ConvertToImage();
@ -366,13 +361,14 @@ void OpenGLTextGlyph::Draw(int x,int y) const {
}
/// @brief DOCME
OpenGLTextGlyph::OpenGLTextGlyph(int value)
OpenGLTextGlyph::OpenGLTextGlyph(int value, wxFont const& font)
: str(wxChar(value))
, font(font)
{
wxCoord desc,lead;
wxBitmap tempBmp(32, 32, 24);
wxMemoryDC dc(tempBmp);
dc.SetFont(OpenGLText::GetFont());
dc.SetFont(font);
dc.GetTextExtent(str,&w,&h,&desc,&lead);
}

57
aegisub/src/gl_text.h
View file

@ -36,8 +36,8 @@
#ifndef AGI_PRE
#include <map>
#include <tr1/memory>
#include <vector>
#include "boost/shared_ptr.hpp"
#include <wx/colour.h>
#include <wx/font.h>
@ -49,7 +49,7 @@
#include <GL/gl.h>
#endif
class OpenGLTextGlyph;
struct OpenGLTextGlyph;
class OpenGLTextTexture;
/// DOCME
@ -61,8 +61,6 @@ typedef std::map<int,OpenGLTextGlyph> glyphMap;
///
/// DOCME
class OpenGLText {
private:
/// DOCME
/// DOCME
@ -95,10 +93,8 @@ private:
glyphMap glyphs;
/// DOCME
std::vector<boost::shared_ptr<OpenGLTextTexture> > textures;
std::vector<std::tr1::shared_ptr<OpenGLTextTexture> > textures;
OpenGLText();
~OpenGLText();
OpenGLText(OpenGLText const&);
OpenGLText& operator=(OpenGLText const&);
@ -109,55 +105,32 @@ private:
/// @brief Create a new glyph
OpenGLTextGlyph const& CreateGlyph(int chr);
/// @brief Get the singleton OpenGLText instance
static OpenGLText& GetInstance();
void DrawString(const wxString &text,int x,int y);
public:
/// @brief Get the currently active font
wxFont GetFont() const { return font; }
/// @brief Set the currently active font
/// @param face Name of the desired font
/// @param size Size in points of the desired font
/// @param bold Should the font be bold?
/// @param italics Should the font be italic?
void DoSetFont(wxString face,int size,bool bold,bool italics);
void SetFont(wxString face,int size,bool bold,bool italics);
/// @brief Set the text color
/// @param col Color
/// @param alpha Alpha value from 0.f-1.f
void DoSetColour(wxColour col,float alpha);
/// @brief Print a string onscreen
void SetColour(wxColour col,float alpha);
/// @brief Print a string on screen
/// @param text String to print
/// @param x x coordinate
/// @param y y coordinate
void DoPrint(const wxString &text,int x,int y);
void DrawString(const wxString &text,int x,int y);
void Print(const wxString &text,int x,int y);
/// @brief Get the extents of a string printed with the current font in pixels
/// @param text String to get extends of
/// @param[out] w Width
/// @param[out] h Height
void DoGetExtent(const wxString &text,int &w,int &h);
void GetExtent(const wxString &text,int &w,int &h);
public:
/// @brief Get the currently active font
static wxFont GetFont() { return GetInstance().font; }
/// @brief Set the currently active font
/// @param face Name of the desired font
/// @param size Size in points of the desired font
/// @param bold Should the font be bold?
/// @param italics Should the font be italic?
static void SetFont(wxString face=_T("Verdana"),int size=10,bool bold=true,bool italics=false) { GetInstance().DoSetFont(face,size,bold,italics); }
/// @brief Set the text color
/// @param col Color
/// @param alpha Alpha value from 0.f-1.f
static void SetColour(wxColour col,float alpha=1.0f) { GetInstance().DoSetColour(col,alpha); }
/// @brief Print a string onscreen
/// @param text String to print
/// @param x x coordinate
/// @param y y coordinate
static void Print(const wxString &text,int x,int y) { GetInstance().DoPrint(text,x,y); }
/// @brief Get the extents of a string printed with the current font in pixels
/// @param text String to get extends of
/// @param[out] w Width
/// @param[out] h Height
static void GetExtent(const wxString &text,int &w,int &h) { GetInstance().DoGetExtent(text,w,h); }
OpenGLText();
~OpenGLText();
};

6
aegisub/src/video_context.cpp
View file

@ -226,13 +226,13 @@ void VideoContext::UpdateDisplays(bool full, bool seek) {
for (std::list<VideoDisplay*>::iterator cur=displayList.begin();cur!=displayList.end();cur++) {
VideoDisplay *display = *cur;
if (!seek) {
display->Refresh();
}
if (full) {
display->UpdateSize();
display->SetFrameRange(0,GetLength()-1);
}
if (!seek) {
display->Refresh();
}
if (seek || full) {
display->SetFrame(GetFrameN());
}

2
aegisub/src/video_display.cpp
View file

@ -437,7 +437,7 @@ void VideoDisplay::UpdateSize() {
video.w = w;
video.h = h;
tool->Refresh();
if (tool.get()) tool->Refresh();
wxGLCanvas::Refresh(false);
}

9
aegisub/src/visual_tool_cross.cpp
View file

@ -44,6 +44,7 @@
VisualToolCross::VisualToolCross(VideoDisplay *parent, VideoState const& video, wxToolBar *)
: VisualTool<VisualDraggableFeature>(parent, video)
, glText(new OpenGLText)
{
}
@ -100,9 +101,9 @@ void VisualToolCross::Draw() {
wxString mouseText = wxString::Format(L"%i,%i", tx, ty);
int tw,th;
OpenGLText::SetFont(L"Verdana", 12, true);
OpenGLText::SetColour(wxColour(255, 255, 255));
OpenGLText::GetExtent(mouseText, tw, th);
glText->SetFont(L"Verdana", 12, true, false);
glText->SetColour(wxColour(255, 255, 255), 1.f);
glText->GetExtent(mouseText, tw, th);
// Calculate draw position
int dx = video.x;
@ -117,5 +118,5 @@ void VisualToolCross::Draw() {
else dy -= th + 3;
// Draw text
OpenGLText::Print(mouseText, dx, dy);
glText->Print(mouseText, dx, dy);
}

6
aegisub/src/visual_tool_cross.h
View file

@ -34,9 +34,14 @@
/// @ingroup visual_ts
///
#ifndef AGI_PRE
#include <tr1/memory>
#endif
#include "visual_feature.h"
#include "visual_tool.h"
class OpenGLText;
/// DOCME
/// @class VisualToolCross
@ -46,6 +51,7 @@
class VisualToolCross : public VisualTool<VisualDraggableFeature> {
bool Update();
void Draw();
std::tr1::shared_ptr<OpenGLText> glText;
public:
VisualToolCross(VideoDisplay *parent, VideoState const& video, wxToolBar *);
};