More hacking on the tilebench part of the UnitTest app

On iOS, don't attempt to write the tile dump ppm file to /tmp, but use
the app-specific directory so that it can be copied for inspection
using iTunes. (Of course, even better would be to simply paint it to
the app's view. Later)

Change-Id: I8dd60d04adc61de6594099f5c358a9b6220522da
Reviewed-on: https://gerrit.libreoffice.org/61255
Reviewed-by: Tor Lillqvist <tml@collabora.com>
Tested-by: Tor Lillqvist <tml@collabora.com>

2 files changed, 28 insertions, 0 deletions

diff --git a/ios/UnitTest/UnitTest/Info.plist b/ios/UnitTest/UnitTest/Info.plist
index 16be3b681122..e6a294eba3ab 100644
--- a/ios/UnitTest/UnitTest/Info.plist
+++ b/ios/UnitTest/UnitTest/Info.plist
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>UIFileSharingEnabled</key>
+	<true/>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleExecutable</key>
diff --git a/ios/UnitTest/UnitTest/ViewController.mm b/ios/UnitTest/UnitTest/ViewController.mm
index 0b25baf6ae0a..a955812d6f3c 100644
--- a/ios/UnitTest/UnitTest/ViewController.mm
+++ b/ios/UnitTest/UnitTest/ViewController.mm
@@ -29,9 +29,35 @@ extern "C" {
 }
 
 #include <premac.h>
+#import <CoreGraphics/CoreGraphics.h>
 #import "ViewController.h"
 #include <postmac.h>
 
+// This is from online's Mobile app (as it is called at the moment);
+// should of course be factored out to some common place. Here in
+// core?
+
+static thread_local CGContextRef cgc = nullptr;
+
+static unsigned char *lo_ios_app_get_cgcontext_for_buffer(unsigned char *buffer, int width, int height)
+{
+    assert(cgc == nullptr);
+
+    cgc = CGBitmapContextCreate(buffer, width, height, 8, width*4, CGColorSpaceCreateDeviceRGB(), kCGImageAlphaNoneSkipFirst);
+
+    CGContextTranslateCTM(cgc, 0, height);
+    CGContextScaleCTM(cgc, 1, -1);
+
+    return (unsigned char*)cgc;
+}
+
+static void lo_ios_app_release_cgcontext_for_buffer()
+{
+    assert(cgc != nullptr);
+    CGContextRelease(cgc);
+    cgc = nullptr;
+}
+
 @interface ViewController ()
 
 @end