quote arguments

when it comes to quotes, cmake is quite like bash...

.clang-format

@@ -0,0 +1,9 @@
+BasedOnStyle: LLVM
+UseTab: Always
+TabWidth: 4
+IndentWidth: 4
+AccessModifierOffset: -4
+IndentCaseLabels: false
+ColumnLimit: 0
+PointerAlignment: Left
+PackConstructorInitializers: Never

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.18)
+cmake_minimum_required(VERSION 3.18...4.2)
 
 project(PROJECT-NAME VERSION 1.0.0 LANGUAGES CXX)
 
@@ -7,12 +7,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(Qt6 REQUIRED COMPONENTS Gui Widgets)
 find_program(CARGO cargo REQUIRED)
-set(CARGO_TARGET_DIR "${CMAKE_BINARY_DIR}/cargo")
-
-# KDE-specific
-find_package(ECM REQUIRED NO_MODULE)
-set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
-find_package(KF6 REQUIRED COMPONENTS WidgetsAddons)
+set(CARGO_TARGET_DIR "${CMAKE_SOURCE_DIR}/target" CACHE PATH "Path to the Cargo target directory")
 
 qt_standard_project_setup()
 

format.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+find src/ ui/ \
+	\( \
+		-name '*.cxx' -o \
+		-name '*.hxx' -o \
+		-name '*.c' -o \
+		-name '*.h' \
+	\) \
+	-print \
+	-exec 'clang-format' '-i' '{}' \;

src/camera.rs

@@ -9,11 +9,11 @@ pub(crate) fn rotation(yaw: f32, pitch: f32) -> Mat3 {
 }
 
 pub(crate) fn view(yaw: f32, pitch: f32, distance: f32) -> Affine3A {
-	Affine3A::from_mat3_translation(rotation(yaw, pitch), vec3(0., 0., distance))
+	Affine3A::from_mat3_translation(rotation(-yaw, -pitch), vec3(0., 0., -distance))
 }
 
 pub(crate) fn projection(fovy: f32, aspect: f32) -> Mat4 {
-	Mat4::perspective_lh(fovy, aspect, 0.1, 10.0)
+	Mat4::perspective_rh(fovy, aspect, 0.1, 10.0)
 }
 
 #[cfg(test)]
@@ -50,10 +50,10 @@ mod tests {
 	fn test_view() {
 		let mut ok = true;
 		for (yaw, pitch, x1, y1, z1) in [
-			(0.0, 0.0, [0., 0., 2.], [-1., 0., 3.], [0., 1., 3.]),
-			(0.5, 0.0, [1., 0., 3.], [0., 0., 2.], [0., 1., 3.]),
-			(0.0, 0.5, [0., -1., 3.], [-1., 0., 3.], [0., 0., 2.]),
-			(0.5, 0.5, [1., 0., 3.], [0., -1., 3.], [0., 0., 2.]),
+			(0.0, 0.0, [0., 0., -4.], [-1., 0., -3.], [0., 1., -3.]),
+			(0.5, 0.0, [-1., 0., -3.], [0., 0., -2.], [0., 1., -3.]),
+			(0.0, 0.5, [0., 1., -3.], [-1., 0., -3.], [0., 0., -2.]),
+			(0.5, 0.5, [-1., 0., -3.], [0., -1., -3.], [0., 0., -2.]),
 		] {
 			let m = view(yaw * PI, pitch * PI, 3.);
 			for (label, world, expected) in

src/lib.rs

@@ -5,10 +5,11 @@ use glam::{Mat4, UVec2, Vec3, Vec4, vec3, vec4};
 mod camera;
 mod render;
 
+const BACKGROUND: Vec4 = vec4(0.00, 0.39, 0.52, 1.00);
+
 #[derive(Debug, Clone, Copy)]
 #[repr(C)]
 pub struct RedrawArgs {
-	pub background: Vec4,
 	pub cam_yaw: f32,
 	pub cam_pitch: f32,
 	pub cam_distance: f32,
@@ -18,8 +19,7 @@ pub struct RedrawArgs {
 impl Default for RedrawArgs {
 	fn default() -> Self {
 		Self {
-			background: vec4(0.25, 0.49, 0.93, 1.00),
-			cam_yaw: std::f32::consts::FRAC_PI_4,
+			cam_yaw: 3. * std::f32::consts::FRAC_PI_4,
 			cam_pitch: std::f32::consts::FRAC_PI_6,
 			cam_distance: 3.,
 			cam_fovy: std::f32::consts::FRAC_PI_2,
@@ -56,7 +56,7 @@ fn cube(a: f32, b: f32) -> render::mesh::CpuMeshIndexed {
 	] {
 		for m in [1., -1.] {
 			let base = mesh.vertices.len() as u16;
-			for offset in [m * v + u, -m * v + u, -m * v - u, m * v - u] {
+			for offset in [m * v + u, m * v - u, -m * v - u, -m * v + u] {
 				let vertex = render::mesh::Vertex {
 					position: (m * w + offset),
 					color: gray + color_level * m * w,
@@ -158,7 +158,7 @@ impl Core {
 				depth_slice: None,
 				resolve_target: None,
 				ops: wgpu::Operations {
-					load: wgpu::LoadOp::Clear(color_to_wgpu(srgba_to_linear(args.background))),
+					load: wgpu::LoadOp::Clear(color_to_wgpu(srgba_to_linear(BACKGROUND))),
 					store: wgpu::StoreOp::Store,
 				},
 			})],

ui/CMakeLists.txt

@@ -9,6 +9,5 @@ qt_add_executable(PROJECT-NAME
 )
 
 target_link_libraries(PROJECT-NAME PRIVATE Qt6::Gui Qt6::Widgets)
-target_link_libraries(PROJECT-NAME PRIVATE KF6::WidgetsAddons)
 target_link_libraries(PROJECT-NAME PRIVATE PROJECT_NAME_impl)
 target_include_directories(PROJECT-NAME PRIVATE src)

ui/impl.cmake

@@ -1,22 +1,33 @@
+# build the Rust side as a static library
 set(impl_basename "${CARGO_TARGET_DIR}/release/libPROJECT_NAME_impl")
 
+set(cargo_cmake_args)
+
+if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.27")
+	list(APPEND cargo_cmake_args DEPENDS_EXPLICIT_ONLY)
+endif()
+
+if("${CMAKE_VERSION}" VERSION_GREATER_EQUAL "3.28")
+	list(APPEND cargo_cmake_args JOB_SERVER_AWARE TRUE)
+endif()
+
 add_custom_command(
-	OUTPUT ${impl_basename}.a
-	COMMAND env CARGO_TARGET_DIR=${CARGO_TARGET_DIR} ${CARGO} build --release --package PROJECT-NAME-impl
-	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-	DEPFILE ${impl_basename}.d
+	OUTPUT "${impl_basename}.a"
+	COMMAND env "CARGO_TARGET_DIR=${CARGO_TARGET_DIR}" ${CARGO} build --release --package PROJECT-NAME-impl
+	WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+	DEPFILE "${impl_basename}.d"
 	USES_TERMINAL
-	JOB_SERVER_AWARE
-	DEPENDS_EXPLICIT_ONLY
+	VERBATIM
+	${cargo_cmake_args}
 )
 
 # HACK ensure CMake *actually adds* the command above
 add_custom_target(build_impl
-	DEPENDS ${impl_basename}.a
+	DEPENDS "${impl_basename}.a"
 )
 
 add_library(PROJECT_NAME_impl STATIC IMPORTED)
 
 set_target_properties(PROJECT_NAME_impl PROPERTIES
-	IMPORTED_LOCATION ${impl_basename}.a
+	IMPORTED_LOCATION "${impl_basename}.a"
 )

ui/src/api.hxx

@@ -12,7 +12,6 @@ namespace ffi {
 struct Core;
 
 struct RedrawArgs {
-	Vec4 background;
 	float cam_yaw;
 	float cam_pitch;
 	float cam_distance;

ui/src/main_window.cxx

@@ -12,9 +12,7 @@ PROJECTNAME::PROJECTNAME(QWidget* parent)
 PROJECTNAME::~PROJECTNAME() = default;
 
 void PROJECTNAME::updateView() {
-	const auto color = m_ui->inBackground->color();
 	RedrawArgs args{
-		.background = { color.redF(), color.greenF(), color.blueF(), 1.00 },
 		.cam_yaw = qDegreesToRadians((float)m_ui->camYaw->value()),
 		.cam_pitch = qDegreesToRadians((float)m_ui->camPitch->value()),
 		.cam_distance = (float)m_ui->camDistance->value(),

ui/src/main_window.ui

@@ -71,7 +71,7 @@
            <double>5.000000000000000</double>
           </property>
           <property name="value">
-           <double>45.000000000000000</double>
+           <double>135.000000000000000</double>
           </property>
          </widget>
         </item>
@@ -156,24 +156,6 @@
        </layout>
       </widget>
      </item>
-     <item>
-      <widget class="QLabel" name="label">
-       <property name="text">
-        <string>Background color</string>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="KColorCombo" name="inBackground">
-       <property name="color">
-        <color>
-         <red>0</red>
-         <green>99</green>
-         <blue>133</blue>
-        </color>
-       </property>
-      </widget>
-     </item>
      <item>
       <spacer name="verticalSpacer">
        <property name="orientation">
@@ -192,11 +174,6 @@
   </widget>
  </widget>
  <customwidgets>
-  <customwidget>
-   <class>KColorCombo</class>
-   <extends>QComboBox</extends>
-   <header>kcolorcombo.h</header>
-  </customwidget>
   <customwidget>
    <class>Viewport</class>
    <extends>QWidget</extends>
@@ -206,22 +183,6 @@
  </customwidgets>
  <resources/>
  <connections>
-  <connection>
-   <sender>inBackground</sender>
-   <signal>highlighted(QColor)</signal>
-   <receiver>MainWindow</receiver>
-   <slot>updateView()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>1531</x>
-     <y>115</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>799</x>
-     <y>599</y>
-    </hint>
-   </hints>
-  </connection>
   <connection>
    <sender>camYaw</sender>
    <signal>valueChanged(double)</signal>