From 8125f1f4ee8215a4486acd514b1c96a2957fa809 Mon Sep 17 00:00:00 2001
From: pixel <pixel>
Date: Mon, 9 Dec 2002 01:39:02 +0000
Subject: zou, some changes.

---
 lib/glfont.cc    | 48 ++++++++++++++++++++++++++++++++++++++----------
 lib/gltexture.cc |  9 +++++++--
 2 files changed, 45 insertions(+), 12 deletions(-)

(limited to 'lib')

diff --git a/lib/glfont.cc b/lib/glfont.cc
index 833d18d..e58feaf 100644
--- a/lib/glfont.cc
+++ b/lib/glfont.cc
@@ -11,24 +11,55 @@ font file format
 
 off|siz|description
 ---+---+-------------------------------
- 0 | 2 | Number of entries
+ 0 | 2 | Number of entries = nbentries
  2 | 1 | Flags
  3 | 1 | maxX (maximum width)
  4 | 1 | maxY (maximum height)
  5 | X | char entries
 5+X| Y | char map
 
+X = (maxX * maxY + 1) * nbentries
+Y = nbentries * 4
+
+
 Flags:
------
+=====
 
 0000000R
 
 R = RGBA (=1) or Alpha (=0)
 
-ABGR in 1232 format:
+RGBA in 1232 format:
 ABBGGGRR
 
-variables comments
+
+Each entries:
+============
+
+off|siz|description
+---+---+-------------------------------
+ 0 | 1 | True size of the entry
+ 1 | Z | Datas
+
+Z = maxX * maxY
+
+
+Char map:
+========
+
+nbentries entries, each entry = 4 bytes = 2 uint16
+
+off|siz|description
+---+---+-------------------------------
+ 0 | 2 | Unicode (?)
+ 2 | 2 | Corresponding char entry
+
+I'm not sure about Unicode. I write this only to say it's an attempt to
+make the fonts "internationals". If the "unicode" is < 255, then it should
+match only one byte in the string. Otherwise, it should match two bytes.
+
+
+Variables comments
 ==================
 
 nbcU = number of chars on X by texture
@@ -94,14 +125,11 @@ mogltk::font::font(const String & file) {
 		}
 	    }
 	}
-	curU += maxX;
-	if (curU >= 256) {
+	if ((curU += maxX) >= 256) {
 	    curU = 0;
-	    curV += maxY;
-	    if (curV >= 256) {
+	    if ((curV += maxY) >= 256) {
 		curV = 0;
-		curT++;
-		curtex = (Uint8 *) fonttex[curT]->GetSurface()->pixels;
+		curtex = (Uint8 *) fonttex[++curT]->GetSurface()->pixels;
 	    }
 	}
     }
diff --git a/lib/gltexture.cc b/lib/gltexture.cc
index b96184f..2758c05 100644
--- a/lib/gltexture.cc
+++ b/lib/gltexture.cc
@@ -10,7 +10,7 @@ mogltk::texture * mogltk::texture::footer = 0;
 #endif
 
 mogltk::texture::texture(int w, int h, bool plane) throw (GeneralException) : width(w), height(h),
-    texture_allocated(false), planar(plane) {
+    texture_allocated(false), planar(plane), tainted(true) {
     if ((BITCOUNT(w) != 1) || (BITCOUNT(h) != 1))
 	throw GeneralException("Size of the texture not a power of 2!");
     
@@ -96,10 +96,11 @@ void mogltk::texture::Generate() {
     }
     
     texture_allocated = true;
+    tainted = false;
 }
 
 void mogltk::texture::Bind(bool expand) {
-    if (!texture_allocated) 
+    if ((!texture_allocated) || tainted)
 	Generate();
     glEnable(GL_TEXTURE_2D);
     glBindTexture(GL_TEXTURE_2D, tex);
@@ -142,3 +143,7 @@ GLuint mogltk::texture::GetHeight() {
 void mogltk::texture::Unbind(void) {
     glDisable(GL_TEXTURE_2D);
 }
+
+void mogltk::texture::Taint(void) {
+    tainted = true;
+}
-- 
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