implement cubes exporter for web viewer

.gitignore

@@ -19,3 +19,4 @@ data/thumbs
 PanoPainter.aps
 panopainter-log.txt
 *.pano
+frames/

data/layout.xml

@@ -127,7 +127,7 @@
       <border height="30" color=".5" align="center" justify="center">
         <text text="Colors" font-face="arial" font-size="11" color="1 1 1 1"/>
       </border>
-      <border color=".3" pad="5" dir="row" height="150">
+      <border color=".3" pad="5" dir="row" height="250">
         <color-quad id="quad" color="1 0 0 1" height="100%" grow="1"/>
         <node width="30" dir="col" pad="0 0 0 5"><slider-hue id="hue"/></node>
       </border>
@@ -559,6 +559,10 @@
         <icon icon="disk" width="20"/>
         <text text="Export JPG" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
+      <button-custom id="file-export-cubes" text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+        <icon icon="page_white_stack" width="20"/>
+        <text text="Export Cubes" margin="0 0 0 5" font-face="arial" font-size="11"/>
+      </button-custom>
       <button-custom id="file-cloud-upload" text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
         <icon icon="weather_clouds" width="20"/>
         <text text="Cloud Upload" margin="0 0 0 5" font-face="arial" font-size="11"/>

engine.vcxproj

@@ -22,7 +22,7 @@
     <ProjectGuid>{6D5028CE-4D76-4B6A-A7C2-DE5A3268D433}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>engine</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.17134.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -353,6 +353,9 @@
   <ItemGroup>
     <Natvis Include="libs\glm\util\glm.natvis" />
   </ItemGroup>
+  <ItemGroup>
+    <Xml Include="data\layout.xml" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

engine.vcxproj.filters

@@ -445,4 +445,9 @@
       <Filter>extras</Filter>
     </Natvis>
   </ItemGroup>
+  <ItemGroup>
+    <Xml Include="data\layout.xml">
+      <Filter>extras</Filter>
+    </Xml>
+  </ItemGroup>
 </Project>

engine/app.h

@@ -140,6 +140,7 @@ public:
     void dialog_open();
     void dialog_browse();
 	void dialog_export();
+	void dialog_export_cubes();
     void dialog_layer_rename();
 
     void cloud_upload();

engine/app_dialogs.cpp

@@ -258,6 +258,14 @@ void App::dialog_export()
     }
 }
 
+void App::dialog_export_cubes()
+{
+	if (canvas)
+	{
+		canvas->m_canvas->export_cubes(data_path + "/" + doc_name);
+	}
+}
+
 void App::dialog_layer_rename()
 {
     auto dialog = std::make_shared<NodeDialogLayerRename>();

engine/app_layout.cpp

@@ -401,6 +401,11 @@ void App::init_menu_file()
                 dialog_export();
                 popup->mouse_release();
                 popup->destroy();
+            };
+			popup->find<NodeButtonCustom>("file-export-cubes")->on_click = [this](Node*) {
+				dialog_export_cubes();
+				popup->mouse_release();
+				popup->destroy();
 			};
 			popup->find<NodeButtonCustom>("file-cloud-upload")->on_click = [this](Node*) {
                 cloud_upload();

engine/canvas.cpp

@@ -1254,6 +1254,72 @@ void ui::Canvas::export_anim(std::string data_path)
     glActiveTexture(GL_TEXTURE0);
 }
 
+void ui::Canvas::export_cubes(std::string data_path)
+{
+	std::array<std::string, 6> names {
+		"pz", "px", "nz", "nx",
+		"py", "ny"
+	};
+	const int stride = m_width * 4;
+	auto buffer = std::make_unique<uint8_t[]>(m_width * m_height * 4);
+	auto flipped = std::make_unique<uint8_t[]>(m_width * m_height * 4);
+	for (auto i : m_order)
+	{
+		for (int plane = 0; plane < 6; plane++)
+		{
+			auto& l = m_layers[i];
+			l.m_rtt[plane].bindFramebuffer();
+			glReadPixels(0, 0, m_width, m_height, GL_RGBA, GL_UNSIGNED_BYTE, buffer.get());
+			l.m_rtt[plane].unbindFramebuffer();
+
+			if (plane < 4)
+			{
+				for (int y = 0; y < m_height; y++)
+				{
+					int y_rev = m_height - y - 1;
+					std::copy_n(buffer.get() + y * stride, stride, flipped.get() + y_rev * stride);
+				}
+				std::swap(buffer, flipped);
+			}
+			else
+			{
+				for (int y = 0; y < m_height; y++)
+				{
+					auto src = (glm::u8vec4*)(buffer.get() + y * stride);
+					auto dst = (glm::u8vec4*)(flipped.get() + y * stride);
+					for (int x = 0; x < m_width; x++)
+					{
+						int x_rev = m_width - x - 1;
+						dst[x_rev] = src[x];
+					}
+					//std::copy_backward(src + stride, src, dst + stride);
+				}
+				std::swap(buffer, flipped);
+			}
+
+			static char name[128];
+			sprintf(name, "%s-%02d-%d.png", data_path.c_str(), i, plane);
+			int ret = stbi_write_png(name, m_width, m_height, 4, buffer.get(), 0);
+
+
+#ifdef __IOS__
+			[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
+				NSURL* url = [NSURL fileURLWithPath : [NSString stringWithUTF8String : name]];
+				PHAssetChangeRequest *changeRequest = [PHAssetChangeRequest creationRequestForAssetFromImageAtFileURL : url];
+				changeRequest.creationDate = [NSDate date];
+			} completionHandler: ^ (BOOL success, NSError *error) {
+				if (success) {
+					NSLog(@"successfully saved");
+				}
+				else {
+					NSLog(@"error saving to photos : %@", error);
+				}
+			}];
+#endif
+		}
+	}
+}
+
 void ui::Canvas::project_save(std::string file_path)
 {
     std::thread t(&ui::Canvas::project_save_thread, this, file_path);

engine/canvas.h

@@ -139,6 +139,7 @@ public:
     void export_equirectangular(std::string file_path);
     void export_equirectangular_thread(std::string file_path);
 	void export_anim(std::string data_path);
+	void export_cubes(std::string data_path);
     void project_save(std::string file_path);
     void project_save_thread(std::string file_path);
     void project_open(std::string file_path, std::function<void()> on_complete = nullptr);

engine/node_popup_menu.cpp

@@ -12,7 +12,7 @@ void NodePopupMenu::init()
     m_flood_events = true;
     SetPosition(0, 0);
     SetWidth(100);
-    SetHeight(400);
+    SetHeight(500);
     SetPositioning(YGPositionTypeAbsolute);
     m_mouse_ignore = false;
     m_capture_children = false;