Migration to this repository

gui/build.sh

@@ -0,0 +1 @@
+gcc -g -Wall -Wextra $1 -fsanitize=address,undefined gui.c stb_truetype.o  -lX11 -lm

gui/build_fast.sh

@@ -0,0 +1 @@
+gcc -g -Wall -Wextra $1 gui.c stb_truetype.o -lX11 -lm

gui/build_stbtt.sh

@@ -0,0 +1,2 @@
+gcc -O3 -c stb_truetype.c -o stb_truetype.o 
+

gui/memory_arena.c

@@ -0,0 +1,51 @@
+
+
+
+typedef struct Memory_Arena
+{
+	void *memory;
+	size_t size;
+	size_t allocation_offset;
+} Memory_Arena;
+
+_Static_assert(sizeof(size_t) == sizeof(void*),
+	"The Memory_Arena implementation assumes that size_t and pointers are of the same size.");
+
+void *memory_arena_allocate(
+	Memory_Arena *arena,
+	size_t size,
+	size_t alignment)
+{
+	#if 0
+	printf(
+		"%s: arena: {.memory=%p, .size=%zu, .allocation_offset=%zu}\n"
+		"size: %zu, alignment: %zu\n"
+		, __func__
+		, arena->memory, arena->size, arena->allocation_offset
+		, size, alignment
+		);
+	#endif
+	size_t allocation_offset = arena->allocation_offset;
+	allocation_offset = ((allocation_offset + alignment - 1) / alignment) * alignment;
+	if(allocation_offset + size > arena->size)
+	{
+		return NULL;
+	}
+	void *allocation = ((char*)arena->memory) + allocation_offset;
+	arena->allocation_offset = allocation_offset + size;
+	return allocation;
+}
+
+void memory_arena_reset(
+	Memory_Arena *arena)
+{
+	arena->allocation_offset = 0;
+}
+
+
+
+
+
+
+
+

gui/memory_arena_linux.c

@@ -0,0 +1,27 @@
+
+#include <errno.h>
+#include <sys/mman.h>
+
+
+// NOTE(Patrick): The memory here is by default allocated uncommitted.
+// This means that we don't lock down 1GB of memory up front, but get
+//  allocated pages by the kernel as needed.
+int linux_allocate_arena_memory(
+	Memory_Arena *arena,
+	size_t arena_size)
+{
+	void *arena_memory = mmap(
+		NULL, arena_size,
+		PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
+	if(arena_memory == (void*)-1) {
+		//perror("mmap");
+		return errno;
+	}
+	arena->memory = arena_memory;
+	arena->size = arena_size;
+	return 0;
+}
+
+
+
+

gui/michroma/OFL.txt

@@ -0,0 +1,94 @@
+Copyright (c) 2011, Vernon Adams (vern@newtypography.co.uk),
+with Reserved Font Name Michroma.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

gui/size_of_file.c

@@ -0,0 +1,9 @@
+long size_of_file(
+	FILE *file)
+{
+	long position = ftell(file);
+	fseek(file, 0, SEEK_END);
+	long file_length = ftell(file);
+	fseek(file, position, SEEK_SET);
+	return file_length;
+}

gui/stb_truetype.c

@@ -0,0 +1,2 @@
+#define STB_TRUETYPE_IMPLEMENTATION
+#include "stb_truetype.h"