Some extermly basic line-wrapping

.gitignore

@@ -0,0 +1,3 @@
+Inter-Regular.ttf
+build
+out

Makefile

@@ -0,0 +1,2 @@
+debug:
+	gcc main.c -g -O0 -o build/ttf -lX11 -lm -Wall -Wextra -Wno-unused-function -Wno-unused-variable  -fsanitize=address

main.c

@@ -159,31 +159,37 @@ main(int argc, char **argv)
         //memset(pixels, 0xFF, width * height * 4);
         memset(pixels, 0x00, width * height * 4);
         
+        int wrap = 100 + (t * 4 % width);
+        
         int at = 75;
+        struct v2 box;
         //render_utf_string(font, 18, pixels, width, L"The quick brown fox jumps over the lazy dog", 100, 150);
         //render_utf_string(font, 12, pixels, width, L"This text is seriously small", 100, at); at += 12;
         //render_utf_string(font, 13, pixels, width, L"This text is seriously small", 100, at); at += 13;
-        render_utf_string(font, 12, pixels, width, L"This text is seriously small", 100, at); at += 12;
+        box = render_utf_string(font, 12, pixels, width, L"This text is seriously small", wrap, 100, at); 
-        render_utf_string(font, 18, pixels, width, L"aolo2@avx:~/Documents/code/ttf-test (master) $", 100, at); at += 20;
+        at += box.y;
-        render_utf_string(font, 26, pixels, width, L"render_utf_string(font, 32, pixels, width, string3, 10 + w1 + w2, at);", 10, at); at += 24;
+        box = render_utf_string(font, 18, pixels, width, L"aolo2@avx:~/Documents/code/ttf-test (master) $", wrap, 100, at); at += 20;
-        render_utf_string(font, 24, pixels, width, L"The quick brown fox jumps over the lazy dog", 10, at); at += 24;
+        at += box.y;
+        box = render_utf_string(font, 26, pixels, width, L"render_utf_string(font, 32, pixels, width, string3, 10 + w1 + w2, at);", wrap, 10, at); at += 24;
+        at += box.y;
+        box = render_utf_string(font, 24, pixels, width, L"The quick brown fox jumps over the lazy dog", wrap, 10, at); at += 24;
         
         wchar_t *string1 = L"iiiiiiiiiiiiiiiiiii";
         wchar_t *string2 = L"something-some";
         wchar_t *string3 = L"MORE MORE";
         
-        int w1 = get_string_width(&font, 32, string1, wcslen(string1));
+        //get_string_width(&font, 32, string1, wcslen(string1));
-        int w2 = get_string_width(&font, 32, string2, wcslen(string2));
+        //get_string_width(&font, 32, string2, wcslen(string2));
         
-        render_utf_string(font, 32, pixels, width, string1, 10, at); 
+        //render_utf_string(font, 32, pixels, width, string1, 200, 10, at); 
-        render_utf_string(font, 32, pixels, width, string2, 10 + w1, at);
+        //render_utf_string(font, 32, pixels, width, string2, 200, 10 + w1, at);
-        render_utf_string(font, 32, pixels, width, string3, 10 + w1 + w2, at);
+        //render_utf_string(font, 32, pixels, width, string3, 200, 10 + w1 + w2, at);
-        at += 80;
+        //at += 80;
-        render_utf_string(font, 80, pixels, width, L"~!@#$%^&*()_+;:,./\\||||", 10, at);
+        //render_utf_string(font, 80, pixels, width, L"~!@#$%^&*()_+;:,./\\||||", 200, 10, at);
         
         XPutImage(display, window, default_gc, xwindow_buffer, 0, 0, 0, 0, width, height);
         
-        sleep(1);
+        usleep(16667);
         
         ++t;
     }

project.4coder

@@ -0,0 +1,38 @@
+version(1);
+
+project_name = "ttf-test";
+
+patterns = {
+	"*.c",
+	"*.h",
+	"*.4coder",
+	"Makefile",
+};
+
+blacklist_patterns = {
+	".*",
+	"res",
+	"lib",
+    "build/*"
+};
+
+load_paths_base = {
+	{ ".", .relative = true, .recursive = true, }
+};
+
+load_paths = {
+	{ load_paths_base, .os = "linux", }
+};
+
+command_list = {
+	{
+		.name = "build debug",
+   	 .out = "*compilation*",
+		.footer_panel = false,
+		.save_dirty_files = true,
+		.cursor_at_end = true,
+	    .cmd = {{ "make debug", .os = "linux" }},
+    },
+};
+	      
+fkey_command[1] = "build debug";

ttf-rasterize.c

@@ -241,8 +241,8 @@ outline_to_lines(struct glyph g, f32 scale, int max_descent, struct line_contour
 }
 
 
-static void
+static struct v2
-render_utf_string(struct ttf_font font, int px_size, u32 *pixels, u32 width, wchar_t *string, int at_x, int at_y)
+render_utf_string(struct ttf_font font, int px_size, u32 *pixels, u32 width, wchar_t *string, u32 fit_width, int at_x, int at_y)
 {
     u32 offset_x = at_x;
     u32 offset_y = at_y;
@@ -250,8 +250,13 @@ render_utf_string(struct ttf_font font, int px_size, u32 *pixels, u32 width, wch
     
     u32 len = wcslen(string);
     
+    struct v2 box = { 0 };
+    
+    box.y = px_size;
+    
     for (u32 i = 0; i < len; ++i) {
         u16 codepoint = string[i];
+        int advance;
         if (codepoint != ' ') {
             struct glyph g = get_outline(&font, codepoint);
             
@@ -265,15 +270,21 @@ render_utf_string(struct ttf_font font, int px_size, u32 *pixels, u32 width, wch
             
             render_glyph(g, px_size, &lines, scale, pixels, width, offset_x, offset_y);
             
-            offset_x += ceil_f32(scale * g.advance);
+            advance = ceil_f32(scale * g.advance);
-            
             free(lines.data);
         } else {
-            int space_advance = get_codepoint_width(&font, scale, codepoint);
+            advance = get_codepoint_width(&font, scale, codepoint);
-            offset_x += space_advance;
         }
         
-        //XPutImage(display, window, default_gc, xwindow_buffer, 0, 0, 0, 0, width, height);
+        offset_x += advance;
-        //sleep(1);
+        box.x += advance;
+        
+        if (offset_x - at_x >= fit_width) {
+            offset_x = at_x;
+            offset_y += px_size;
+            box.y += px_size;
+        }
     }
+    
+    return(box);
 }