Very early, incomplete, and so far unused gl text class.

Originally committed to SVN as r1059.

aegisub/gl_text.cpp

@@ -0,0 +1,163 @@
+// Copyright (c) 2007, Rodrigo Braz Monteiro
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// -----------------------------------------------------------------------------
+//
+// AEGISUB
+//
+// Website: http://aegisub.cellosoft.com
+// Contact: mailto:zeratul@cellosoft.com
+//
+
+
+///////////
+// Headers
+#include "gl_text.h"
+
+
+///////////////////
+// Static instance
+OpenGLText* OpenGLText::instance;
+
+
+///////////////
+// Constructor
+OpenGLText::OpenGLText() {
+	r = g = b = a = 1.0f;
+}
+
+
+//////////////
+// Destructor
+OpenGLText::~OpenGLText() {
+}
+
+
+////////////////
+// Get instance
+OpenGLText* OpenGLText::GetInstance() {
+	if (!instance) instance = new OpenGLText();
+	wxASSERT(instance);
+	return instance;
+}
+
+
+////////////
+// Set font
+void OpenGLText::DoSetFont(wxString face,int size) {
+}
+
+
+//////////////
+// Set colour
+void OpenGLText::DoSetColour(wxColour col,float alpha) {
+	r = col.Red() / 255.0f;
+	g = col.Green() / 255.0f;
+	b = col.Blue() / 255.0f;
+	a = alpha;
+}
+
+
+/////////
+// Print
+void OpenGLText::DoPrint(wxString text,int x,int y) {
+}
+
+
+///////////////
+// Get a glyph
+OpenGLTextGlyph OpenGLText::GetGlyph(int i) {
+	glyphMap::iterator res = glyphs.find(i);
+
+	// Found
+	if (res != glyphs.end()) return res->second;
+
+	// Not found, create it
+	return CreateGlyph(i);
+}
+
+
+//////////////////
+// Create a glyph
+OpenGLTextGlyph OpenGLText::CreateGlyph(int n) {
+	// Create glyph
+	OpenGLTextGlyph glyph;
+	glyph.x = 0;
+	glyph.y = 0;
+	glyph.w = 0;
+	glyph.h = 0;
+	glyph.tex = 0;
+
+	// Render glyph;
+	int w = 16;
+	int h = 16;
+
+	// Insert into some texture
+	bool ok = false;
+	for (unsigned int i=0;i<textures.size();i++) {
+		if (textures[i]->CanFit(w,h)) {
+			textures[i]->Insert(glyph);
+			ok = true;
+		}
+	}
+
+	// No texture could fit it, create a new one
+	if (!ok) {
+		textures.push_back(new OpenGLTextTexture());
+		textures.back()->Insert(glyph);
+	}
+
+	// Set glyph and return it
+	glyphs[n] = glyph;
+	return glyph;
+}
+
+
+///////////////////////
+// Texture constructor
+OpenGLTextTexture::OpenGLTextTexture() {
+}
+
+
+//////////////////////
+// Texture destructor
+OpenGLTextTexture::~OpenGLTextTexture() {
+}
+
+
+//////////////////////////
+// Can fit a glyph in it?
+bool OpenGLTextTexture::CanFit(int w,int h) {
+	return true;
+}
+
+
+////////////////////////
+// Insert a glyph in it
+void OpenGLTextTexture::Insert(OpenGLTextGlyph glyph) {
+}
+

aegisub/gl_text.h

@@ -0,0 +1,96 @@
+// Copyright (c) 2007, Rodrigo Braz Monteiro
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// -----------------------------------------------------------------------------
+//
+// AEGISUB
+//
+// Website: http://aegisub.cellosoft.com
+// Contact: mailto:zeratul@cellosoft.com
+//
+
+#pragma once
+
+///////////
+// Headers
+#include <wx/wxprec.h>
+#include <GL/gl.h>
+#include <map>
+#include <vector>
+
+
+/////////////////////
+// Glyph information
+class OpenGLTextGlyph {
+public:
+	int tex;
+	float x,y,w,h;
+};
+
+typedef std::map<int,OpenGLTextGlyph> glyphMap;
+
+
+///////////////
+// Texture map
+class OpenGLTextTexture {
+public:
+	GLuint tex;
+
+	bool CanFit(int w,int h);
+	void Insert(OpenGLTextGlyph glyph);
+
+	OpenGLTextTexture();
+	~OpenGLTextTexture();
+};
+
+
+/////////////////////////////
+// OpenGL Text Drawing class
+class OpenGLText {
+private:
+	float r,g,b,a;
+	static OpenGLText* instance;
+
+	glyphMap glyphs;
+	std::vector <OpenGLTextTexture*> textures;
+
+	OpenGLText();
+	~OpenGLText();
+
+	OpenGLTextGlyph GetGlyph(int i);
+	OpenGLTextGlyph CreateGlyph(int i);
+
+	static OpenGLText* GetInstance();
+	void DoSetFont(wxString face,int size);
+	void DoSetColour(wxColour col,float alpha);
+	void DoPrint(wxString text,int x,int y);
+
+public:
+	static void SetFont(wxString face,int size) { GetInstance()->DoSetFont(face,size); }
+	static void SetColour(wxColour col,float alpha=1.0f) { GetInstance()->DoSetColour(col,alpha); }
+	static void Print(wxString text,int x,int y) { GetInstance()->DoPrint(text,x,y); }
+};