gg: image: return an optional instead of panic(); darwin: fix nsstring()

thirdparty/fontstash/fontstash.h

@@ -174,6 +174,8 @@ FONS_DEF void fonsDrawDebug(FONScontext* s, float x, float y);
 
 #undef FONS_USE_FREETYPE
 
+//#define FONS_USE_FREETYPE
+
 #ifdef FONS_USE_FREETYPE
 
 #include <ft2build.h>

thirdparty/fontstash/stb_truetype.h

@@ -2978,7 +2978,7 @@ static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill,
          float x_top, x_bottom;
          float sy0,sy1;
          float dy = e->fdy;
-         STBTT_assert(e->sy <= y_bottom && e->ey >= y_top);
+//         STBTT_assert(e->sy <= y_bottom && e->ey >= y_top);
 
          // compute endpoints of line segment clipped to this scanline (if the
          // line segment starts on this scanline. x0 is the intersection of the

vlib/builtin/builtin.v

@@ -113,11 +113,27 @@ pub fn print(s string) {
 const (
 	new_line_character = '\n'
 )
+
+//#include "@VROOT/vlib/darwin/darwin.m"
+
+//fn C.nsstring2(s string) voidptr
+//fn C.NSLog(x voidptr)
+#include <asl.h>
+
+
+fn C.asl_log(voidptr, voidptr, int, charptr)
+
 pub fn println(s string) {
 	$if windows {
 		print(s)
 		print(new_line_character)
 	} $else {
+		// For debugging .app applications (no way to read stdout) so that it's printed to macOS Console
+		/*
+		$if macos {
+			C.asl_log(0, 0, C.ASL_LEVEL_ERR, s.str)
+		}
+		*/
 		//  TODO: a syscall sys_write on linux works, except for the v repl.
 		//  Probably it is a stdio buffering issue. Needs more testing...
 		//	$if linux {

vlib/darwin/darwin.m

@@ -0,0 +1,9 @@
+
+///void NSLog(id x);
+
+#include <Cocoa/Cocoa.h>
+
+NSString* nsstring2(string s) {
+	return [ [ NSString alloc ] initWithBytesNoCopy:s.str  length:s.len
+	  encoding:NSUTF8StringEncoding freeWhenDone: false];
+}

vlib/darwin/darwin.v

@@ -8,13 +8,18 @@ module darwin
 
 struct C.NSString { }
 
+#include "@VROOT/vlib/darwin/darwin.m"
+
+fn C.nsstring2(s string) voidptr
+
 // macOS and iOS helpers
 //pub fn nsstring(s string) *C.NSString {
 pub fn nsstring(s string) voidptr {
+	return C.nsstring2(s)
 	// println('ns $s len=$s.len')
-	# return [ [ NSString alloc ] initWithBytesNoCopy:s.str  length:s.len
+	//# return [ [ NSString alloc ] initWithBytesNoCopy:s.str  length:s.len
-	# encoding:NSUTF8StringEncoding freeWhenDone: false];
+	//# encoding:NSUTF8StringEncoding freeWhenDone: false];
-	return 0
+	//return 0
 
 	//ns := C.alloc_NSString()
 	//return ns.initWithBytesNoCopy(s.str, length: s.len,

vlib/gg/image.v

@@ -26,10 +26,12 @@ pub mut:
 
 fn C.sg_isvalid() bool
 
+// TODO return ?Image
 pub fn (mut ctx Context) create_image(file string) Image {
 	if !C.sg_isvalid() {
+		// Sokol is not initialized yet, add stbi object to a queue/cache
 		//ctx.image_queue << file
-		stb_img := stbi.load(file)
+		stb_img := stbi.load(file) or { return Image{} }
 		img := Image{
 			width: stb_img.width
 			height: stb_img.height
@@ -55,7 +57,7 @@ fn create_image(file string) Image {
 		println('gg.create_image(): file not found: $file')
 		return Image{} // none
 	}
-	stb_img := stbi.load(file)
+	stb_img := stbi.load(file) or { return Image{} }
 	mut img := Image{
 		width: stb_img.width
 		height: stb_img.height
@@ -70,7 +72,7 @@ fn create_image(file string) Image {
 }
 
 pub fn create_image_from_memory(buf byteptr, bufsize int) Image {
-	stb_img := stbi.load_from_memory(buf, bufsize)
+	stb_img := stbi.load_from_memory(buf, bufsize) or { return Image{} }
 	mut img := Image{
 		width: stb_img.width
 		height: stb_img.height

vlib/sokol/f/f.v

@@ -6,10 +6,10 @@ pub const (
   used_import = 1 + fontstash.used_import
 )
 
+/*
 #flag windows -I @VROOT/thirdparty/freetype/include
 #flag windows -L @VROOT/thirdparty/freetype/win64
 
-/*
 #flag linux -I/usr/include/freetype2
 #flag darwin -I/usr/local/include/freetype2
 // MacPorts

vlib/stbi/stbi.v

@@ -28,7 +28,7 @@ fn init() {
 	set_flip_vertically_on_load(false)
 }
 
-pub fn load(path string) Image {
+pub fn load(path string) ?Image {
 	ext := path.all_after_last('.')
 	mut res := Image {
 		ok: true
@@ -38,12 +38,12 @@ pub fn load(path string) Image {
 	flag := if ext == 'png' { C.STBI_rgb_alpha } else { 0 }
 	res.data = C.stbi_load(path.str, &res.width, &res.height,	&res.nr_channels, flag)
 	if isnil(res.data) {
-		panic('stbi image failed to load from "$path"')
+		return error('stbi image failed to load from "$path"')
 	}
 	return res
 }
 
-pub fn load_from_memory(buf byteptr, bufsize int) Image {
+pub fn load_from_memory(buf byteptr, bufsize int) ?Image {
 	mut res := Image {
 		ok: true
 		data: 0
@@ -51,7 +51,7 @@ pub fn load_from_memory(buf byteptr, bufsize int) Image {
 	flag := C.STBI_rgb_alpha
 	res.data = C.stbi_load_from_memory(buf, bufsize, &res.width, &res.height, &res.nr_channels, flag)
 	if isnil(res.data) {
-		panic('stbi image failed to load from memory')
+		return error('stbi image failed to load from memory')
 	}
 	return res
 }

vlib/x/net/tcp.v

@@ -274,6 +274,7 @@ fn new_tcp_socket() ?TcpSocket {
 		handle: sockfd
 	}
 	s.set_option_bool(.reuse_addr, true)?
+	//s.set_option_int(.reuse_addr, 1)?
 	$if windows {
 		t := true
 		socket_error(C.ioctlsocket(sockfd, fionbio, &t))?