From: Ivan Hernanez <iturtleman128@gmail.com>
Date: Mon, 28 May 2012 06:10:44 +0000 (-0500)
Subject: support for english language rendering added
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=771ded26506955658ad95c1caa4896f8f9656414;p=IvanGame.git

support for english language rendering added
---

diff --git a/Level.cpp b/Level.cpp
index 961fed5..2a01403 100644
--- a/Level.cpp
+++ b/Level.cpp
@@ -1,4 +1,4 @@
-#include "Level.h"
+#include "Level.h"
 #include "Game.h"
 #include "fns.h"
 #include <GL/gl.h>
@@ -46,6 +46,77 @@ void Level::DrawIMG(SDL_Surface *img, int x, int y, int w, int h, int x2, int y2
 	SDL_BlitSurface(img, &src, mScreen, &dest);
 }
 
+int round(double x)
+{
+	return (int)(x + 0.5);
+}
+
+void SDL_GL_RenderText(string s, 
+	TTF_Font *font,
+	SDL_Color color,
+	SDL_Rect *location)
+{
+	const char* text = s.c_str();
+	SDL_Surface *initial;
+	SDL_Surface *intermediary;
+	SDL_Rect rect;
+	int w,h;
+	Texture texture;
+
+	/* Use SDL_TTF to render our text */
+	initial = TTF_RenderText_Blended(font, text, color);
+
+	/* Convert the rendered text to a known format */
+	w = initial->w;
+	h = initial->h;
+
+	intermediary = SDL_CreateRGBSurface(0, w, h, 32, 
+		0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
+
+	SDL_BlitSurface(initial, 0, intermediary, 0);
+
+	/* Tell GL about our new texture */
+	glGenTextures(1, &texture);
+	glBindTexture(GL_TEXTURE_2D, texture);
+	glTexImage2D(GL_TEXTURE_2D, 0, 4, w, h, 0, GL_BGRA, 
+		GL_UNSIGNED_BYTE, intermediary->pixels );
+
+	/* GL_NEAREST looks horrible, if scaled... */
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);	
+
+	/* prepare to render our texture */
+	glEnable(GL_TEXTURE_2D);
+	glBindTexture(GL_TEXTURE_2D, texture);
+	glColor3f(1.0f, 1.0f, 1.0f);
+
+	/* Draw a quad at location */
+	glBegin(GL_QUADS);
+	/* Recall that the origin is in the lower-left corner
+	That is why the TexCoords specify different corners
+	than the Vertex coors seem to. */
+	glTexCoord2f(0.0f, 0.0f); 
+	glVertex2f(location->x    , location->y);
+	glTexCoord2f(1.0f, 0.0f); 
+	glVertex2f(location->x + w, location->y);
+	glTexCoord2f(1.0f, 1.0f); 
+	glVertex2f(location->x + w, location->y + h);
+	glTexCoord2f(0.0f, 1.0f); 
+	glVertex2f(location->x    , location->y + h);
+	glEnd();
+
+	/* Bad things happen if we delete the texture before it finishes */
+	glFinish();
+
+	/* return the deltas in the unused w,h part of the rect */
+	location->w = initial->w;
+	location->h = initial->h;
+
+	/* Clean up */
+	SDL_FreeSurface(initial);
+	SDL_FreeSurface(intermediary);
+	glDeleteTextures(1, &texture);
+}
 void Level::drawScene()
 {
 
@@ -55,16 +126,6 @@ void Level::drawScene()
 	/** Create a black mBackgroundground using the mScreen pixel format (32 bpp) */
 	glClear(GL_COLOR_BUFFER_BIT);
 
-	/** Draw BG */
-	if(mBackground!=NULL)
-		mBackground->draw();
-
-	/** Draw Sprites*/
-	DrawSprites();
-
-	/** Draw Boundary Data */
-	DrawCollisions();
-
 	// Load a font
 	TTF_Font *font;
 	font = TTF_OpenFont("FreeSans.ttf", 24);
@@ -72,30 +133,43 @@ void Level::drawScene()
 	if(font){
 		// Write text to surface
 		SDL_Surface *text;
-		SDL_Color text_color = {255, 255, 255};
+		SDL_Color text_color = {0xFF, 0xFF, 0xFF};
 		string txt="A journey of a thousand miles begins with a single step.";
-		text = TTF_RenderText_Solid(font, txt.c_str(), text_color);
-
-		if (text == NULL)
-		{
-			cerr << "TTF_RenderText_Solid() Failed: " << TTF_GetError() << endl;
-			TTF_Quit();
-			SDL_Quit();
-			exit(1);
-		}
+		SDL_Rect rect = {0,0,100,100};
+		SDL_GL_RenderText(txt, font, text_color, &rect);
+	}
+	else
+		cerr << "TTF_OpenFont() Failed: " << TTF_GetError() << endl;
 
-		// Apply the text to the display
-		if (SDL_BlitSurface(text, NULL, Game::game()->Screen(), NULL) != 0)
-		{
-			cerr << "SDL_BlitSurface() Failed: " << SDL_GetError() << endl;
-		}
+	TTF_CloseFont(font);
+
+	// Load a font
+	TTF_Font *font;
+	font = TTF_OpenFont("FreeSans.ttf", 24);
 
-		SDL_FreeSurface(text);
+	if(font){
+		// Write text to surface
+		SDL_Surface *text;
+		SDL_Color text_color = {0xFF, 0xFF, 0xFF};
+		string txt="日本語";
+		SDL_Rect rect = {0,100,100,100};
+		SDL_GL_RenderText(txt, font, text_color, &rect);
 	}
 	else
 		cerr << "TTF_OpenFont() Failed: " << TTF_GetError() << endl;
 
 	TTF_CloseFont(font);
+
+	/** Draw BG */
+	if(mBackground!=NULL)
+		mBackground->draw();
+
+	/** Draw Sprites*/
+	DrawSprites();
+
+	/** Draw Boundary Data */
+	DrawCollisions();
+
 	/** Flip the working image buffer with the mScreen buffer */
 	SDL_GL_SwapBuffers();
 }