first commit

Minecraft.Client/Font.cpp

@@ -0,0 +1,616 @@
+#include "stdafx.h"
+#include "Textures.h"
+#include "Font.h"
+#include "Options.h"
+#include "Tesselator.h"
+#include "..\Minecraft.World\IntBuffer.h"
+#include "..\Minecraft.World\net.minecraft.h"
+#include "..\Minecraft.World\StringHelpers.h"
+#include "..\Minecraft.World\Random.h"
+
+Font::Font(Options *options, const wstring& name, Textures* textures, bool enforceUnicode, TEXTURE_NAME textureName, int cols, int rows, int charWidth, int charHeight, unsigned short charMap[]/* = nullptr */) : textures(textures)
+{
+	int charC = cols * rows; // Number of characters in the font
+
+	charWidths = new int[charC];
+
+	// 4J - added initialisers
+	memset(charWidths, 0, charC);
+
+	enforceUnicodeSheet = false;
+	bidirectional = false;
+	xPos = yPos = 0.0f;
+
+	// Set up member variables
+	m_cols = cols;
+	m_rows = rows;
+	m_charWidth = charWidth;
+	m_charHeight = charHeight;
+	m_textureName = textureName;
+
+	// Build character map
+	if (charMap != NULL)
+	{
+		for(int i = 0; i < charC; i++)
+		{
+			m_charMap.insert(std::make_pair(charMap[i], i));
+		}
+	}
+
+	random = new Random();
+
+	// Load the image
+    BufferedImage *img = textures->readImage(m_textureName, name);
+
+	/* - 4J - TODO
+	try {
+        img = ImageIO.read(Textures.class.getResourceAsStream(name));
+    } catch (IOException e) {
+        throw new RuntimeException(e);
+    }
+	*/
+
+    int w = img->getWidth();
+    int h = img->getHeight();
+    intArray rawPixels(w * h);
+    img->getRGB(0, 0, w, h, rawPixels, 0, w);
+
+    for (int i = 0; i < charC; i++)
+	{
+        int xt = i % m_cols;
+        int yt = i / m_cols;
+		
+        int x = 7;
+        for (; x >= 0; x--)
+		{
+            int xPixel = xt * 8 + x;
+            bool emptyColumn = true;
+            for (int y = 0; y < 8 && emptyColumn; y++)
+			{
+                int yPixel = (yt * 8 + y) * w;
+				bool emptyPixel = (rawPixels[xPixel + yPixel] >> 24) == 0; // Check the alpha value
+                if (!emptyPixel) emptyColumn = false; 
+            }
+            if (!emptyColumn)
+			{
+                break;
+            }
+        }
+
+        if (i == ' ') x = 4 - 2;
+        charWidths[i] = x + 2;
+    }
+
+	delete img;
+
+	// calculate colors
+	for (int colorN = 0; colorN < 32; ++colorN)
+	{
+		int var10 = (colorN >> 3 & 1) * 85;
+		int red = (colorN >> 2 & 1) * 170 + var10;
+		int green = (colorN >> 1 & 1) * 170 + var10;
+		int blue = (colorN >> 0 & 1) * 170 + var10;
+
+		if (colorN == 6)
+		{
+			red += 85;
+		}
+
+		if (options->anaglyph3d)
+		{
+			int tmpRed = (red * 30 + green * 59 + blue * 11) / 100;
+			int tmpGreen = (red * 30 + green * 70) / 100;
+			int tmpBlue = (red * 30 + blue * 70) / 100;
+			red = tmpRed;
+			green = tmpGreen;
+			blue = tmpBlue;
+		}
+
+		if (colorN >= 16)
+		{
+			red /= 4;
+			green /= 4;
+			blue /= 4;
+		}
+
+		colors[colorN] = (red & 255) << 16 | (green & 255) << 8 | (blue & 255);
+	}
+}
+
+#ifndef _XBOX
+// 4J Stu - This dtor clashes with one in xui! We never delete these anyway so take it out for now. Can go back when we have got rid of XUI
+Font::~Font()
+{
+	delete[] charWidths;
+}
+#endif
+
+void Font::renderCharacter(wchar_t c)
+{	
+	float xOff = c % m_cols * m_charWidth;
+	float yOff = c / m_cols * m_charWidth;
+
+	float width = charWidths[c] - .01f;
+	float height = m_charHeight - .01f;
+	
+	float fontWidth = m_cols * m_charWidth;
+	float fontHeight = m_rows * m_charHeight;
+
+    Tesselator *t = Tesselator::getInstance();
+	// 4J Stu - Changed to a quad so that we can use within a command buffer
+#if 1
+	t->begin();
+	t->tex(xOff / fontWidth, (yOff + 7.99f) / fontHeight);
+	t->vertex(xPos, yPos + height, 0.0f);
+
+	t->tex((xOff + width) / fontWidth, (yOff + 7.99f) / fontHeight);
+	t->vertex(xPos + width, yPos + height, 0.0f);
+
+	t->tex((xOff + width) / fontWidth, yOff / fontHeight);
+	t->vertex(xPos + width, yPos, 0.0f);
+
+	t->tex(xOff / fontWidth, yOff / fontHeight);
+	t->vertex(xPos, yPos, 0.0f);
+
+	t->end();
+#else
+	t->begin(GL_TRIANGLE_STRIP);
+	t->tex(xOff / 128.0F, yOff / 128.0F);
+	t->vertex(xPos, yPos, 0.0f);
+	t->tex(xOff / 128.0F, (yOff + 7.99f) / 128.0F);
+	t->vertex(xPos, yPos + 7.99f, 0.0f);
+	t->tex((xOff + width) / 128.0F, yOff / 128.0F);
+	t->vertex(xPos + width, yPos, 0.0f);
+	t->tex((xOff + width) / 128.0F, (yOff + 7.99f) / 128.0F);
+	t->vertex(xPos + width, yPos + 7.99f, 0.0f);
+	t->end();
+#endif
+
+	xPos += (float) charWidths[c];
+}
+
+void Font::drawShadow(const wstring& str, int x, int y, int color)
+{
+    draw(str, x + 1, y + 1, color, true);
+    draw(str, x, y, color, false);
+}
+
+void Font::drawShadowWordWrap(const wstring &str, int x, int y, int w, int color, int h)
+{
+	drawWordWrapInternal(str, x + 1, y + 1, w, color, true, h);
+	drawWordWrapInternal(str, x, y, w, color, h);
+}
+
+void Font::draw(const wstring& str, int x, int y, int color)
+{
+	draw(str, x, y, color, false);
+}
+
+wstring Font::reorderBidi(const wstring &str)
+{
+	// 4J Not implemented
+	return str;
+}
+
+void Font::draw(const wstring &str, bool dropShadow)
+{
+	// Bind the texture
+	textures->bindTexture(m_textureName);
+
+	bool noise = false;
+	wstring cleanStr = sanitize(str);
+
+	for (int i = 0; i < (int)cleanStr.length(); ++i)
+	{
+		// Map character
+		wchar_t c = cleanStr.at(i);
+
+		if (c == 167 && i + 1 < cleanStr.length())
+		{
+			// 4J - following block was:
+			// int colorN = L"0123456789abcdefk".indexOf(str.toLowerCase().charAt(i + 1));
+			wchar_t ca = cleanStr[i+1];
+			int colorN = 16;
+			if(( ca >= L'0' ) && (ca <= L'9')) colorN = ca - L'0';
+			else if(( ca >= L'a' ) && (ca <= L'f')) colorN = (ca - L'a') + 10;
+			else if(( ca >= L'A' ) && (ca <= L'F')) colorN = (ca - L'A') + 10;
+
+			if (colorN == 16)
+			{
+				noise = true;
+			}
+			else
+			{
+				noise = false;
+				if (colorN < 0 || colorN > 15) colorN = 15;
+
+				if (dropShadow) colorN += 16;
+
+				int color = colors[colorN];
+				glColor3f((color >> 16) / 255.0F, ((color >> 8) & 255) / 255.0F, (color & 255) / 255.0F);
+			}
+
+
+			i += 1;
+			continue;
+		}
+		
+		// "noise" for crazy splash screen message
+		if (noise)
+		{
+			int newc;
+			do
+			{
+				newc = random->nextInt(SharedConstants::acceptableLetters.length());
+			} while (charWidths[c + 32] != charWidths[newc + 32]);
+			c = newc;
+		}		
+
+		renderCharacter(c);
+	}
+}
+
+void Font::draw(const wstring& str, int x, int y, int color, bool dropShadow)
+{
+	if (!str.empty())
+	{
+		if ((color & 0xFC000000) == 0) color |= 0xFF000000; // force alpha
+		// if not set
+
+		if (dropShadow) // divide RGB by 4, preserve alpha
+			color = (color & 0xfcfcfc) >> 2 | (color & (-1 << 24));
+
+		glColor4f((color >> 16 & 255) / 255.0F, (color >> 8 & 255) / 255.0F, (color & 255) / 255.0F, (color >> 24 & 255) / 255.0F);
+
+		xPos = x;
+		yPos = y;
+		draw(str, dropShadow);
+	}
+}
+
+int Font::width(const wstring& str)
+{
+	wstring cleanStr = sanitize(str);
+
+	if (cleanStr == L"") return 0;	// 4J - was NULL comparison
+	int len = 0;
+
+	for (int i = 0; i < cleanStr.length(); ++i)
+	{
+		wchar_t c = cleanStr.at(i);
+
+		if(c == 167)
+		{
+			// Ignore the character used to define coloured text
+			++i;
+		}
+		else
+		{
+			len += charWidths[c];
+		}
+	}
+
+	return len;
+}
+
+wstring Font::sanitize(const wstring& str)
+{
+	wstring sb = str;
+
+    for (unsigned int i = 0; i < sb.length(); i++)
+	{
+        if (CharacterExists(sb[i]))
+		{
+			sb[i] = MapCharacter(sb[i]);
+		}
+		else
+		{
+			// If this character isn't supported, just show the first character (empty square box character)
+			sb[i] = 0;
+		}
+    }
+    return sb;
+}
+
+int Font::MapCharacter(wchar_t c)
+{
+	if (!m_charMap.empty())
+	{
+		// Don't map space character
+		return c == ' ' ? c : m_charMap[c];
+	}
+	else
+	{
+		return c;
+	}
+}
+
+bool Font::CharacterExists(wchar_t c)
+{
+	if (!m_charMap.empty())
+	{
+		return m_charMap.find(c) != m_charMap.end();
+	}
+	else
+	{
+		return c >= 0 && c <= m_rows*m_cols;
+	}
+}
+
+void Font::drawWordWrap(const wstring &string, int x, int y, int w, int col, int h)
+{
+	//if (bidirectional)
+	//{
+	//	string = reorderBidi(string);
+	//}
+	drawWordWrapInternal(string, x, y, w, col, h);
+}
+
+void Font::drawWordWrapInternal(const wstring &string, int x, int y, int w, int col, int h)
+{
+	drawWordWrapInternal(string, x, y, w, col, false, h);
+}
+
+void Font::drawWordWrap(const wstring &string, int x, int y, int w, int col, bool darken, int h)
+{
+	//if (bidirectional)
+	//{
+	//	string = reorderBidi(string);
+	//}
+	drawWordWrapInternal(string, x, y, w, col, darken, h);
+}
+
+void Font::drawWordWrapInternal(const wstring& string, int x, int y, int w, int col, bool darken, int h)
+{
+    vector<wstring>lines = stringSplit(string,L'\n');
+    if (lines.size() > 1)
+	{
+		AUTO_VAR(itEnd, lines.end());
+		for (AUTO_VAR(it, lines.begin()); it != itEnd; it++)
+		{
+			// 4J Stu - Don't draw text that will be partially cutoff/overlap something it shouldn't
+			if( (y + this->wordWrapHeight(*it, w)) > h) break;
+            drawWordWrapInternal(*it, x, y, w, col, h);
+            y += this->wordWrapHeight(*it, w);
+        }
+        return;
+    }
+    vector<wstring> words = stringSplit(string,L' ');
+    unsigned int pos = 0;
+    while (pos < words.size())
+	{
+        wstring line = words[pos++] + L" ";
+        while (pos < words.size() && width(line + words[pos]) < w)
+		{
+            line += words[pos++] + L" ";
+        }
+        while (width(line) > w)
+		{
+            int l = 0;
+            while (width(line.substr(0, l + 1)) <= w)
+			{
+                l++;
+            }
+            if (trimString(line.substr(0, l)).length() > 0)
+			{
+                draw(line.substr(0, l), x, y, col);
+                y += 8;
+            }
+            line = line.substr(l);
+
+			// 4J Stu - Don't draw text that will be partially cutoff/overlap something it shouldn't
+			if( (y + 8) > h) break;
+        }
+		// 4J Stu - Don't draw text that will be partially cutoff/overlap something it shouldn't
+        if (trimString(line).length() > 0 && !( (y + 8) > h) )
+		{
+            draw(line, x, y, col);
+            y += 8;
+        }
+    }
+
+}
+
+int Font::wordWrapHeight(const wstring& string, int w)
+{
+    vector<wstring> lines = stringSplit(string,L'\n');
+    if (lines.size() > 1)
+	{
+        int h = 0;
+		AUTO_VAR(itEnd, lines.end());
+		for (AUTO_VAR(it, lines.begin()); it != itEnd; it++)
+		{
+            h += this->wordWrapHeight(*it, w);
+        }
+        return h;
+    }
+	vector<wstring> words = stringSplit(string,L' ');
+    unsigned int pos = 0;
+    int y = 0;
+    while (pos < words.size())
+	{
+        wstring line = words[pos++] + L" ";
+        while (pos < words.size() && width(line + words[pos]) < w)
+		{
+            line += words[pos++] + L" ";
+        }
+        while (width(line) > w)
+		{
+            int l = 0;
+			while (width(line.substr(0, l + 1)) <= w)
+			{
+                l++;
+            }
+            if (trimString(line.substr(0, l)).length() > 0)
+			{
+                y += 8;
+            }
+            line = line.substr(l);
+        }
+        if (trimString(line).length() > 0) {
+            y += 8;
+        }
+    }
+    if (y < 8) y += 8;
+    return y;
+
+}
+
+void Font::setEnforceUnicodeSheet(bool enforceUnicodeSheet)
+{
+	this->enforceUnicodeSheet = enforceUnicodeSheet;
+}
+
+void Font::setBidirectional(bool bidirectional)
+{
+	this->bidirectional = bidirectional;
+}
+
+bool Font::AllCharactersValid(const wstring &str)
+{
+	for (int i = 0; i < (int)str.length(); ++i)
+	{
+		wchar_t c = str.at(i);
+
+		if (c == 167 && i + 1 < str.length())
+		{
+			// skip special color setting
+			i += 1;
+			continue;
+		}
+
+		int index = SharedConstants::acceptableLetters.find(c);
+
+		if ((c != ' ') && !(index > 0 && !enforceUnicodeSheet))
+		{					
+			return false;
+		}
+	}
+	return true;
+}
+
+// Not in use
+/*// 4J - this code is lifted from #if 0 section above, so that we can directly create what would have gone in each of our 256 + 32 command buffers
+void Font::renderFakeCB(IntBuffer *ib)
+{
+    Tesselator *t = Tesselator::getInstance();
+
+	int i;
+
+	for(unsigned int j = 0; j < ib->limit(); j++)
+	{
+		int cb = ib->get(j);
+
+		if( cb < 256 )
+		{
+			i = cb;
+			t->begin();
+			int ix = i % 16 * 8;
+			int iy = i / 16 * 8;
+			// float s = 7.99f;
+			float s = 7.99f;
+
+			float uo = (0.0f) / 128.0f;
+			float vo = (0.0f) / 128.0f;
+
+			t->vertexUV((float)(0), (float)( 0 + s), (float)( 0), (float)( ix / 128.0f + uo), (float)( (iy + s) / 128.0f + vo));
+			t->vertexUV((float)(0 + s), (float)( 0 + s), (float)( 0), (float)( (ix + s) / 128.0f + uo), (float)( (iy + s) / 128.0f + vo));
+			t->vertexUV((float)(0 + s), (float)( 0), (float)( 0), (float)( (ix + s) / 128.0f + uo), (float)( iy / 128.0f + vo));
+			t->vertexUV((float)(0), (float)( 0), (float)( 0), (float)( ix / 128.0f + uo), (float)( iy / 128.0f + vo));
+			// target.colorBlit(texture, x + xo, y, color, ix, iy,
+		// charWidths[chars[i]], 8);
+			t->end();
+
+			glTranslatef((float)charWidths[i], 0, 0);
+		}
+		else
+		{
+			i = cb - 256;
+
+			int br = ((i >> 3) & 1) * 0x55;
+			int r = ((i >> 2) & 1) * 0xaa + br;
+			int g = ((i >> 1) & 1) * 0xaa + br;
+			int b = ((i >> 0) & 1) * 0xaa + br;
+			if (i == 6)
+			{
+				r += 0x55;
+			}
+			bool darken = i >= 16;
+
+			// color = r << 16 | g << 8 | b;
+			if (darken)
+			{
+				r /= 4;
+				g /= 4;
+				b /= 4;
+			}
+			glColor3f(r / 255.0f, g / 255.0f, b / 255.0f);
+		}
+	}
+}
+
+void Font::loadUnicodePage(int page)
+{
+	wchar_t fileName[25];
+	//String fileName = String.format("/1_2_2/font/glyph_%02X.png", page);
+	swprintf(fileName,25,L"/1_2_2/font/glyph_%02X.png",page);
+	BufferedImage *image = new BufferedImage(fileName);
+	//try
+	//{
+	//	image = ImageIO.read(Textures.class.getResourceAsStream(fileName.toString()));
+	//}
+	//catch (IOException e)
+	//{
+	//	throw new RuntimeException(e);
+	//}
+
+	unicodeTexID[page] = textures->getTexture(image);
+	lastBoundTexture = unicodeTexID[page];
+}
+
+void Font::renderUnicodeCharacter(wchar_t c)
+{
+	if (unicodeWidth[c] == 0)
+	{
+		// System.out.println("no-width char " + c);
+		return;
+	}
+
+	int page = c / 256;
+
+	if (unicodeTexID[page] == 0) loadUnicodePage(page);
+
+	if (lastBoundTexture != unicodeTexID[page])
+	{
+		glBindTexture(GL_TEXTURE_2D, unicodeTexID[page]);
+		lastBoundTexture = unicodeTexID[page];
+	}
+
+	// first column with non-trans pixels
+	int firstLeft = unicodeWidth[c] >> 4;
+	// last column with non-trans pixels
+	int firstRight = unicodeWidth[c] & 0xF;
+
+	float left = firstLeft;
+	float right = firstRight + 1;
+
+	float xOff = c % 16 * 16 + left;
+	float yOff = (c & 0xFF) / 16 * 16;
+	float width = right - left - .02f;
+	
+    Tesselator *t = Tesselator::getInstance();
+	t->begin(GL_TRIANGLE_STRIP);
+	t->tex(xOff / 256.0F, yOff / 256.0F);
+	t->vertex(xPos, yPos, 0.0f);
+	t->tex(xOff / 256.0F, (yOff + 15.98f) / 256.0F);
+	t->vertex(xPos, yPos + 7.99f, 0.0f);
+	t->tex((xOff + width) / 256.0F, yOff / 256.0F);
+	t->vertex(xPos + width / 2, yPos, 0.0f);
+	t->tex((xOff + width) / 256.0F, (yOff + 15.98f) / 256.0F);
+	t->vertex(xPos + width / 2, yPos + 7.99f, 0.0f);
+	t->end();
+
+	xPos += (right - left) / 2 + 1;
+}
+*/
+