Update version and release notes

* Add prefix macro and use it everywhere

* Add lightweight test for prefix

* Add a little doc blurb

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*.{c,cpp,h}]
+charset = utf-8
+indent_style = space
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true

.gitignore

@@ -5,6 +5,7 @@
 *.slo
 *.lo
 *.o
+*.obj
 *.vs
 
 # Precompiled Headers
@@ -30,6 +31,4 @@
 *.exe
 *.out
 *.app
-
 test/build
-example/build

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "example/external/glfw"]
-	path = example/external/glfw
-	url = git@github.com:glfw/glfw.git

.travis.yml

@@ -1,12 +1,23 @@
 language: cpp
+os:
+  - linux
+  - osx
 compiler:
   - clang
   - gcc
+matrix:
+  include:
+    # Windows x64 builds (MSVC)
+    - os: windows
+      script:
+        - ./test.bat travis
+
+before_install:
+  - eval "${MATRIX_EVAL}"
 install:
   - cd test
-  - make
 script:
-  - build/hmm_test_c
+  - make c
-  - build/hmm_test_c_no_sse
+  - make c_no_sse
-  - build/hmm_test_cpp
+  - make cpp
-  - build/hmm_test_cpp_no_sse
+  - make cpp_no_sse

README.md

@@ -10,6 +10,13 @@ To get started, go download [the latest release](https://github.com/HandmadeMath
 
 Version         | Changes        |
 ----------------|----------------|
+**1.11.0** | Added ability to customize or remove the default `HMM_` prefix on function names by defining a macro called `HMM_PREFIX(name)`. |
+**1.10.1** | Removed stdint.h, this doesn't exist on some really old compilers and we didn't really use it anyways. |
+**1.10.0** | Made HMM_Perspective use vertical FOV instead of horizontal FOV for consistency with other graphics APIs. |
+**1.9.0** | Added SSE versions of quaternion operations. |
+**1.8.0** | Added fast vector normalization routines that use fast inverse square roots.
+**1.7.1** | Changed operator[] to take a const ref int instead of an int.
+**1.7.0** | Renamed the 'Rows' member of hmm_mat4 to 'Columns'. Since our matrices are column-major, this should have been named 'Columns' from the start. 'Rows' is still present, but has been deprecated.
 **1.6.0** | Added array subscript operators for vector and matrix types in C++. This is provided as a convenience, but be aware that it may incur an extra function call in unoptimized builds.
 **1.5.1** | Fixed a bug with uninitialized elements in HMM_LookAt.
 **1.5.0** | Changed internal structure for better performance and inlining. As a result, `HANDMADE_MATH_NO_INLINE` has been removed and no longer has any effect.

example/Axes.mtl

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example/Axes.obj

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-v 3.384616 0.000000 -0.117000
-v 3.384616 0.000000 -0.312000
-v 3.579616 0.000000 -0.312000
-v 3.579616 0.000000 -0.394000
-v 3.384616 0.000000 -0.394000
-v 3.384616 0.000000 -0.589000
-vn 0.0000 1.0000 0.0000
-vn 0.0000 0.0000 1.0000
-usemtl None
-s off
-f 185//86 183//86 184//86
-f 185//86 182//86 183//86
-f 182//86 180//86 181//86
-f 182//86 191//86 180//86
-f 185//86 191//86 182//86
-f 186//86 191//86 185//86
-f 186//86 188//86 191//86
-f 188//86 190//86 191//86
-f 186//86 187//86 188//86
-f 189//86 190//86 188//86
-f 193//86 203//86 192//86
-f 193//86 202//86 203//86
-f 195//86 193//86 194//86
-f 195//86 202//86 193//86
-f 195//86 201//86 202//86
-f 195//86 200//86 201//86
-f 196//87 200//87 195//87
-f 197//86 199//86 196//86
-f 199//87 200//87 196//87
-f 197//86 198//86 199//86

example/Makefile

@@ -1,22 +0,0 @@
-BUILD_DIR=build
-
-CXXFLAGS+=-std=c++11
-
-clean:
-	rm -rf $(BUILD_DIR)
-
-glfw:
-	mkdir -p $(BUILD_DIR)/glfw
-	cd $(BUILD_DIR)/glfw \
-		&& cmake -DGLFW_BUILD_TESTS=off -DGLFW_BUILD_DOCS=off -DGLFW_BUILD_EXAMPLES=off ../../external/glfw \
-		&& make
-
-example:
-	mkdir -p $(BUILD_DIR)/example
-	cd $(BUILD_DIR)/example \
-		&& $(CXX) $(CPPFLAGS) $(CXXFLAGS) -ohmmexample \
-			-I../../external/glfw/include -I../../.. \
-			-L../glfw/src \
-			-lglew -lglfw3 \
-			-framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo \
-			../../src/*.cpp

example/MonkeyFlat.mtl

@@ -1,10 +0,0 @@
-# Blender MTL File: 'None'
-# Material Count: 1
-
-newmtl None
-Ns 0
-Ka 0.000000 0.000000 0.000000
-Kd 0.8 0.8 0.8
-Ks 0.8 0.8 0.8
-d 1
-illum 2

example/MonkeySmooth.mtl

@@ -1,10 +0,0 @@
-# Blender MTL File: 'None'
-# Material Count: 1
-
-newmtl None
-Ns 0
-Ka 0.000000 0.000000 0.000000
-Kd 0.8 0.8 0.8
-Ks 0.8 0.8 0.8
-d 1
-illum 2

example/build.bat

@@ -1,14 +0,0 @@
-@echo off
-
-mkdir build\example
-pushd build\example
-cl^
-    /I..\..\.. /I..\..\external\glew\include /I..\..\external\glfw-win64\include^
-    /MD /EHsc^
-    ..\..\src\*.cpp^
-    /Fehmm_example.exe^
-    /link^
-    /LIBPATH:..\..\external\glew\lib\Release\x64 /LIBPATH:..\..\external\glfw-win64\lib-vc2015^
-    opengl32.lib gdi32.lib user32.lib shell32.lib glew32.lib glfw3.lib
-copy ..\..\external\glew\bin\Release\x64\glew32.dll glew32.dll
-popd

example/external/glew/LICENSE.txt

@@ -1,73 +0,0 @@
-The OpenGL Extension Wrangler Library
-Copyright (C) 2002-2007, Milan Ikits <milan ikits[]ieee org>
-Copyright (C) 2002-2007, Marcelo E. Magallon <mmagallo[]debian org>
-Copyright (C) 2002, Lev Povalahev
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without 
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, 
-  this list of conditions and the following disclaimer.
-* Redistributions in binary form must reproduce the above copyright notice, 
-  this list of conditions and the following disclaimer in the documentation 
-  and/or other materials provided with the distribution.
-* The name of the author may be used to endorse or promote products 
-  derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
-THE POSSIBILITY OF SUCH DAMAGE.
-
-
-Mesa 3-D graphics library
-Version:  7.0
-
-Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-Copyright (c) 2007 The Khronos Group Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and/or associated documentation files (the
-"Materials"), to deal in the Materials without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Materials, and to
-permit persons to whom the Materials are furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Materials.
-
-THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

example/external/glfw-win64/COPYING.txt

@@ -1,22 +0,0 @@
-Copyright (c) 2002-2006 Marcus Geelnard
-Copyright (c) 2006-2016 Camilla Berglund <elmindreda@glfw.org>
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not
-   claim that you wrote the original software. If you use this software
-   in a product, an acknowledgment in the product documentation would
-   be appreciated but is not required.
-
-2. Altered source versions must be plainly marked as such, and must not
-   be misrepresented as being the original software.
-
-3. This notice may not be removed or altered from any source
-   distribution.
-

example/external/glfw-win64/include/GLFW/glfw3native.h

@@ -1,456 +0,0 @@
-/*************************************************************************
- * GLFW 3.2 - www.glfw.org
- * A library for OpenGL, window and input
- *------------------------------------------------------------------------
- * Copyright (c) 2002-2006 Marcus Geelnard
- * Copyright (c) 2006-2016 Camilla Berglund <elmindreda@glfw.org>
- *
- * This software is provided 'as-is', without any express or implied
- * warranty. In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software. If you use this software
- *    in a product, an acknowledgment in the product documentation would
- *    be appreciated but is not required.
- *
- * 2. Altered source versions must be plainly marked as such, and must not
- *    be misrepresented as being the original software.
- *
- * 3. This notice may not be removed or altered from any source
- *    distribution.
- *
- *************************************************************************/
-
-#ifndef _glfw3_native_h_
-#define _glfw3_native_h_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/*************************************************************************
- * Doxygen documentation
- *************************************************************************/
-
-/*! @file glfw3native.h
- *  @brief The header of the native access functions.
- *
- *  This is the header file of the native access functions.  See @ref native for
- *  more information.
- */
-/*! @defgroup native Native access
- *
- *  **By using the native access functions you assert that you know what you're
- *  doing and how to fix problems caused by using them.  If you don't, you
- *  shouldn't be using them.**
- *
- *  Before the inclusion of @ref glfw3native.h, you may define exactly one
- *  window system API macro and zero or more context creation API macros.
- *
- *  The chosen backends must match those the library was compiled for.  Failure
- *  to do this will cause a link-time error.
- *
- *  The available window API macros are:
- *  * `GLFW_EXPOSE_NATIVE_WIN32`
- *  * `GLFW_EXPOSE_NATIVE_COCOA`
- *  * `GLFW_EXPOSE_NATIVE_X11`
- *  * `GLFW_EXPOSE_NATIVE_WAYLAND`
- *  * `GLFW_EXPOSE_NATIVE_MIR`
- *
- *  The available context API macros are:
- *  * `GLFW_EXPOSE_NATIVE_WGL`
- *  * `GLFW_EXPOSE_NATIVE_NSGL`
- *  * `GLFW_EXPOSE_NATIVE_GLX`
- *  * `GLFW_EXPOSE_NATIVE_EGL`
- *
- *  These macros select which of the native access functions that are declared
- *  and which platform-specific headers to include.  It is then up your (by
- *  definition platform-specific) code to handle which of these should be
- *  defined.
- */
-
-
-/*************************************************************************
- * System headers and types
- *************************************************************************/
-
-#if defined(GLFW_EXPOSE_NATIVE_WIN32)
- // This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
- // example to allow applications to correctly declare a GL_ARB_debug_output
- // callback) but windows.h assumes no one will define APIENTRY before it does
- #undef APIENTRY
- #include <windows.h>
-#elif defined(GLFW_EXPOSE_NATIVE_COCOA)
- #include <ApplicationServices/ApplicationServices.h>
- #if defined(__OBJC__)
-  #import <Cocoa/Cocoa.h>
- #else
-  typedef void* id;
- #endif
-#elif defined(GLFW_EXPOSE_NATIVE_X11)
- #include <X11/Xlib.h>
- #include <X11/extensions/Xrandr.h>
-#elif defined(GLFW_EXPOSE_NATIVE_WAYLAND)
- #include <wayland-client.h>
-#elif defined(GLFW_EXPOSE_NATIVE_MIR)
- #include <mir_toolkit/mir_client_library.h>
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_WGL)
- /* WGL is declared by windows.h */
-#endif
-#if defined(GLFW_EXPOSE_NATIVE_NSGL)
- /* NSGL is declared by Cocoa.h */
-#endif
-#if defined(GLFW_EXPOSE_NATIVE_GLX)
- #include <GL/glx.h>
-#endif
-#if defined(GLFW_EXPOSE_NATIVE_EGL)
- #include <EGL/egl.h>
-#endif
-
-
-/*************************************************************************
- * Functions
- *************************************************************************/
-
-#if defined(GLFW_EXPOSE_NATIVE_WIN32)
-/*! @brief Returns the adapter device name of the specified monitor.
- *
- *  @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
- *  of the specified monitor, or `NULL` if an [error](@ref error_handling)
- *  occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.1.
- *
- *  @ingroup native
- */
-GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
-
-/*! @brief Returns the display device name of the specified monitor.
- *
- *  @return The UTF-8 encoded display device name (for example
- *  `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.1.
- *
- *  @ingroup native
- */
-GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
-
-/*! @brief Returns the `HWND` of the specified window.
- *
- *  @return The `HWND` of the specified window, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_WGL)
-/*! @brief Returns the `HGLRC` of the specified window.
- *
- *  @return The `HGLRC` of the specified window, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_COCOA)
-/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
- *
- *  @return The `CGDirectDisplayID` of the specified monitor, or
- *  `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.1.
- *
- *  @ingroup native
- */
-GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
-
-/*! @brief Returns the `NSWindow` of the specified window.
- *
- *  @return The `NSWindow` of the specified window, or `nil` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_NSGL)
-/*! @brief Returns the `NSOpenGLContext` of the specified window.
- *
- *  @return The `NSOpenGLContext` of the specified window, or `nil` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_X11)
-/*! @brief Returns the `Display` used by GLFW.
- *
- *  @return The `Display` used by GLFW, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI Display* glfwGetX11Display(void);
-
-/*! @brief Returns the `RRCrtc` of the specified monitor.
- *
- *  @return The `RRCrtc` of the specified monitor, or `None` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.1.
- *
- *  @ingroup native
- */
-GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
-
-/*! @brief Returns the `RROutput` of the specified monitor.
- *
- *  @return The `RROutput` of the specified monitor, or `None` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.1.
- *
- *  @ingroup native
- */
-GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
-
-/*! @brief Returns the `Window` of the specified window.
- *
- *  @return The `Window` of the specified window, or `None` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_GLX)
-/*! @brief Returns the `GLXContext` of the specified window.
- *
- *  @return The `GLXContext` of the specified window, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
-
-/*! @brief Returns the `GLXWindow` of the specified window.
- *
- *  @return The `GLXWindow` of the specified window, or `None` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
-/*! @brief Returns the `struct wl_display*` used by GLFW.
- *
- *  @return The `struct wl_display*` used by GLFW, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
-
-/*! @brief Returns the `struct wl_output*` of the specified monitor.
- *
- *  @return The `struct wl_output*` of the specified monitor, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
-
-/*! @brief Returns the main `struct wl_surface*` of the specified window.
- *
- *  @return The main `struct wl_surface*` of the specified window, or `NULL` if
- *  an [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_MIR)
-/*! @brief Returns the `MirConnection*` used by GLFW.
- *
- *  @return The `MirConnection*` used by GLFW, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI MirConnection* glfwGetMirDisplay(void);
-
-/*! @brief Returns the Mir output ID of the specified monitor.
- *
- *  @return The Mir output ID of the specified monitor, or zero if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI int glfwGetMirMonitor(GLFWmonitor* monitor);
-
-/*! @brief Returns the `MirSurface*` of the specified window.
- *
- *  @return The `MirSurface*` of the specified window, or `NULL` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.2.
- *
- *  @ingroup native
- */
-GLFWAPI MirSurface* glfwGetMirWindow(GLFWwindow* window);
-#endif
-
-#if defined(GLFW_EXPOSE_NATIVE_EGL)
-/*! @brief Returns the `EGLDisplay` used by GLFW.
- *
- *  @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
-
-/*! @brief Returns the `EGLContext` of the specified window.
- *
- *  @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
-
-/*! @brief Returns the `EGLSurface` of the specified window.
- *
- *  @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
- *  [error](@ref error_handling) occurred.
- *
- *  @thread_safety This function may be called from any thread.  Access is not
- *  synchronized.
- *
- *  @since Added in version 3.0.
- *
- *  @ingroup native
- */
-GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _glfw3_native_h_ */
-

example/shell.bat

@@ -1,5 +0,0 @@
-@echo off
-
-if not defined ORIGINALPATH set ORIGINALPATH=%PATH%
-set PATH=%ORIGINALPATH%
-call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x64

example/src/Cube.h

@@ -1,161 +0,0 @@
-#include <HandmadeMath.h>
-
-#include "Entity.h"
-#include "RenderComponent.h"
-
-#ifndef HMME_CUBE_H
-#define HMME_CUBE_H
-
-// Our vertices. Three consecutive floats give a 3D vertex; Three consecutive vertices give a triangle.
-// A cube has 6 faces with 2 triangles each, so this makes 6*2=12 triangles, and 12*3 vertices
-static const GLfloat cubeVertices[] = {
-    -1.0f,-1.0f,-1.0f, // triangle 1 : begin
-    -1.0f,-1.0f, 1.0f,
-    -1.0f, 1.0f, 1.0f, // triangle 1 : end
-    1.0f, 1.0f,-1.0f, // triangle 2 : begin
-    -1.0f,-1.0f,-1.0f,
-    -1.0f, 1.0f,-1.0f, // triangle 2 : end
-    1.0f,-1.0f, 1.0f,
-    -1.0f,-1.0f,-1.0f,
-    1.0f,-1.0f,-1.0f,
-    1.0f, 1.0f,-1.0f,
-    1.0f,-1.0f,-1.0f,
-    -1.0f,-1.0f,-1.0f,
-    -1.0f,-1.0f,-1.0f,
-    -1.0f, 1.0f, 1.0f,
-    -1.0f, 1.0f,-1.0f,
-    1.0f,-1.0f, 1.0f,
-    -1.0f,-1.0f, 1.0f,
-    -1.0f,-1.0f,-1.0f,
-    -1.0f, 1.0f, 1.0f,
-    -1.0f,-1.0f, 1.0f,
-    1.0f,-1.0f, 1.0f,
-    1.0f, 1.0f, 1.0f,
-    1.0f,-1.0f,-1.0f,
-    1.0f, 1.0f,-1.0f,
-    1.0f,-1.0f,-1.0f,
-    1.0f, 1.0f, 1.0f,
-    1.0f,-1.0f, 1.0f,
-    1.0f, 1.0f, 1.0f,
-    1.0f, 1.0f,-1.0f,
-    -1.0f, 1.0f,-1.0f,
-    1.0f, 1.0f, 1.0f,
-    -1.0f, 1.0f,-1.0f,
-    -1.0f, 1.0f, 1.0f,
-    1.0f, 1.0f, 1.0f,
-    -1.0f, 1.0f, 1.0f,
-    1.0f,-1.0f, 1.0f
-};
-
-// One color for each vertex. They were generated randomly.
-static const GLfloat cubeColors[] = {
-    0.583f,  0.771f,  0.014f,
-    0.609f,  0.115f,  0.436f,
-    0.327f,  0.483f,  0.844f,
-    0.822f,  0.569f,  0.201f,
-    0.435f,  0.602f,  0.223f,
-    0.310f,  0.747f,  0.185f,
-    0.597f,  0.770f,  0.761f,
-    0.559f,  0.436f,  0.730f,
-    0.359f,  0.583f,  0.152f,
-    0.483f,  0.596f,  0.789f,
-    0.559f,  0.861f,  0.639f,
-    0.195f,  0.548f,  0.859f,
-    0.014f,  0.184f,  0.576f,
-    0.771f,  0.328f,  0.970f,
-    0.406f,  0.615f,  0.116f,
-    0.676f,  0.977f,  0.133f,
-    0.971f,  0.572f,  0.833f,
-    0.140f,  0.616f,  0.489f,
-    0.997f,  0.513f,  0.064f,
-    0.945f,  0.719f,  0.592f,
-    0.543f,  0.021f,  0.978f,
-    0.279f,  0.317f,  0.505f,
-    0.167f,  0.620f,  0.077f,
-    0.347f,  0.857f,  0.137f,
-    0.055f,  0.953f,  0.042f,
-    0.714f,  0.505f,  0.345f,
-    0.783f,  0.290f,  0.734f,
-    0.722f,  0.645f,  0.174f,
-    0.302f,  0.455f,  0.848f,
-    0.225f,  0.587f,  0.040f,
-    0.517f,  0.713f,  0.338f,
-    0.053f,  0.959f,  0.120f,
-    0.393f,  0.621f,  0.362f,
-    0.673f,  0.211f,  0.457f,
-    0.820f,  0.883f,  0.371f,
-    0.982f,  0.099f,  0.879f
-};
-
-class CubeRenderComponent : public RenderComponent {
-public:
-    GLuint vaoID;
-    GLuint vertexBufferID;
-    GLuint colorBufferID;
-
-    CubeRenderComponent() {
-        glGenVertexArrays(1, &vaoID);
-
-        glGenBuffers(1, &vertexBufferID);
-        glBindBuffer(GL_ARRAY_BUFFER, vertexBufferID);
-        glBufferData(GL_ARRAY_BUFFER, sizeof(cubeVertices), cubeVertices, GL_STATIC_DRAW);
-
-        glGenBuffers(1, &colorBufferID);
-        glBindBuffer(GL_ARRAY_BUFFER, colorBufferID);
-        glBufferData(GL_ARRAY_BUFFER, sizeof(cubeColors), cubeColors, GL_STATIC_DRAW);
-    }
-
-    void Draw() override {
-        glBindVertexArray(vaoID);
-
-        // 1st attribute buffer : vertices
-        glEnableVertexAttribArray(0);
-        glBindBuffer(GL_ARRAY_BUFFER, vertexBufferID);
-        glVertexAttribPointer(
-           0,                  // attribute 0. No particular reason for 0, but must match the layout in the shader.
-           3,                  // size
-           GL_FLOAT,           // type
-           GL_FALSE,           // normalized?
-           0,                  // stride
-           (void*)0            // array buffer offset
-        );
-
-        // 2nd attribute buffer : colors
-        glEnableVertexAttribArray(1);
-        glBindBuffer(GL_ARRAY_BUFFER, colorBufferID);
-        glVertexAttribPointer(
-            1,                 // attribute. No particular reason for 1, but must match the layout in the shader.
-            3,                 // size
-            GL_FLOAT,          // type
-            GL_FALSE,          // normalized?
-            0,                 // stride
-            (void*)0           // array buffer offset
-        );
-        
-        // Shader??
-
-        // Draw the triangle!
-        glDrawArrays(GL_TRIANGLES, 0, 36); // Starting from vertex 0; 3 vertices total -> 1 triangle
-        glDisableVertexAttribArray(0);
-        glDisableVertexAttribArray(1);
-    }
-};
-
-class Cube : public Entity {
-public:
-    float x = 0;
-    CubeRenderComponent rc = CubeRenderComponent();
-
-    Cube() {
-        // renderComponent = &rc;
-    }
-
-    void Tick(float deltaSeconds, Input previousInput, Input input) override {
-        x += deltaSeconds;
-        // position.X = 2.0f * HMM_SINF(x);
-
-        rotation *= HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 1.0f, 0.0f), deltaSeconds * HMM_ToRadians(45.0f));
-    }
-};
-
-#endif

example/src/Entity.h

@@ -1,119 +0,0 @@
-#include <vector>
-
-#include <HandmadeMath.h>
-
-#ifndef HMME_ENTITY_H
-#define HMME_ENTITY_H
-
-#include "RenderComponent.h"
-
-class Entity {
-public:
-    hmm_vec3 position = HMM_Vec3(0.0f, 0.0f, 0.0f);
-    hmm_quaternion rotation = HMM_Quaternion(0.0f, 0.0f, 0.0f, 1.0f);
-    hmm_vec3 scale = HMM_Vec3(1.0f, 1.0f, 1.0f);
-
-    std::vector<Entity*> children;
-
-    void AddChild(Entity* e) {
-        children.push_back(e);
-    }
-
-    virtual void Tick(float deltaSeconds, Input previousInput, Input input) {}
-
-    RenderComponent *renderComponent = NULL;
-
-    struct CameraInfo {
-        float fov = 90.0f;
-        float aspect = 1024.0f / 768.0f;
-        float near = 0.1f;
-        float far = 100.0f;
-    };
-    CameraInfo camera;
-
-    hmm_mat4 projectionMatrix() {
-        return HMM_Perspective(camera.fov, camera.aspect, camera.near, camera.far);
-    }
-
-    hmm_mat4 viewMatrix() {
-        return HMM_LookAt(worldPosition(), worldPosition() + forward(), up());
-    }
-
-    hmm_vec3 worldPosition() {
-        return (modelMatrix * HMM_Vec4(0.0f, 0.0f, 0.0f, 1.0f)).XYZ;
-    }
-
-    hmm_vec3 up() {
-        return (modelMatrix * HMM_Vec4(0.0f, 1.0f, 0.0f, 1.0f)).XYZ - worldPosition();
-    }
-
-    hmm_vec3 forward() {
-        return (modelMatrix * HMM_Vec4(1.0f, 0.0f, 0.0f, 1.0f)).XYZ - worldPosition();
-    }
-
-    hmm_vec3 right() {
-        return (modelMatrix * HMM_Vec4(0.0f, 0.0f, 1.0f, 1.0f)).XYZ - worldPosition();
-    }
-
-    // Context for rendering and stuff
-    hmm_mat4 parentModelMatrix;
-    hmm_mat4 modelMatrix;
-};
-
-class EntityIterator {
-public:
-    typedef struct State {
-        Entity *entity;
-        int childIndex;
-
-        State(Entity *e) {
-            entity = e;
-            childIndex = -1;
-        }
-    } State;
-
-    EntityIterator(Entity *e) {
-        stack.push_back(State(e));
-    }
-
-    bool HasNext() {
-        return !stack.empty();
-    }
-
-    Entity *Next() {
-        Entity *result = 0;
-
-        // Pass 1 - get a result by either grabbing the current entity or making another state
-        while (true) {
-            State *state = &stack.back();
-
-            if (state->childIndex < 0) {
-                result = state->entity;
-                state->childIndex = 0;
-                break;
-            } else {
-                int nextIndex = state->childIndex;
-                state->childIndex++;
-                stack.push_back(State(state->entity->children[nextIndex]));
-            }
-        }
-
-        // Pass 2 - remove exhausted states from the stack
-        while (!stack.empty()) {
-            State state = stack.back();
-
-            if (state.childIndex >= state.entity->children.size()) {
-                stack.pop_back();
-            } else {
-                break;
-            }
-        }
-
-        return result;
-    }
-
-private:
-    std::vector<State> stack;
-};
-
-#endif

example/src/FPSCam.h

@@ -1,62 +0,0 @@
-#include <stdio.h>
-#include <tgmath.h>
-
-#ifndef HMME_FPSCAM_H
-#define HMME_FPSCAM_H
-
-#include "Entity.h"
-#include "FollowCam.h"
-#include "HandmadeMath.h"
-
-#include "debug.h"
-
-class FPSCam : public Entity {
-public:
-    FollowCam cam = FollowCam(0); // TODO: Why on earth is this necessary?? Remove this and fix the error.
-    Entity target;
-
-    // all angles in radians
-    float yaw = 0;
-    float pitch = 0;
-    float sensitivity = 0.002f;
-
-    FPSCam() {
-        target = Entity();
-        target.position = HMM_Vec3(0.0f, 0.0f, -1.0f);
-
-        cam = FollowCam(&target);
-
-        AddChild(&target);
-        AddChild(&cam);
-    }
-
-    void Tick(float deltaSeconds, Input previousInput, Input input) override {
-        double deltaX = input.mouseX - previousInput.mouseX;
-        double deltaY = input.mouseY - previousInput.mouseY;
-
-        // HACK: Pitch is being weird for reasons I don't understand. It works fine for
-        // 360 degrees, then does something silly for 360 degrees, then repeats. I suspect
-        // I'm just doing something wrong with quaternions because I know they encode twice
-        // the angle or whatever. In any case, I've hacked around it for now to splice
-        // together ranges that work.
-
-        yaw = yaw + (-deltaX * sensitivity);
-        pitch = HMM_Clamp(-HMM_PI32 / 2, pitch + (-deltaY * sensitivity), HMM_PI32 / 2);
-
-        // HACK: MEGAHACK: why the heck is the apparent rotation twice what it should be?
-        float hackyPitch = HMM_PI32;
-        if (pitch > 0) {
-            hackyPitch = HMM_PI32 + pitch / 2;
-        } else if (pitch < 0) {
-            hackyPitch = 2 * HMM_PI32 + pitch / 2;
-        }
-        printf("%f\t%f\n", pitch, hackyPitch);
-
-        hmm_quaternion rotationYaw = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 1.0f, 0.0f), yaw);
-        hmm_quaternion rotationPitch = HMM_QuaternionFromAxisAngle(HMM_Vec3(1.0f, 0.0f, 0.0f), hackyPitch);
-
-        rotation = rotationPitch * rotationYaw;
-    }
-};
-
-#endif

example/src/FollowCam.h

@@ -1,71 +0,0 @@
-#include <stdio.h>
-
-#ifndef HMME_FOLLOWCAM_H
-#define HMME_FOLLOWCAM_H
-
-#include "Entity.h"
-#include "HandmadeMath.h"
-
-#include "debug.h"
-
-class FollowCam : public Entity {
-public:
-    Entity *target;
-
-    FollowCam(Entity *t) {
-        target = t;
-    }
-
-    void Tick(float deltaSeconds, Input previousInput, Input input) override {
-        // TODO: Find a way to do this rotation routine in a single quaternion. Maybe that
-        // just means finding a correct method, then doing some quaternion multiplication
-        // on paper to see how the axis and angle shake out.
-
-        rotation = GetLookAtRotation();
-    }
-
-    hmm_quaternion GetLookAtRotation() {
-        hmm_vec3 fwd = (parentModelMatrix * HMM_Vec4(1.0f, 0.0f, 0.0f, 0.0f)).XYZ;
-        hmm_vec3 up = (parentModelMatrix * HMM_Vec4(0.0f, 1.0f, 0.0f, 0.0f)).XYZ;
-        hmm_vec3 to = target->worldPosition() - worldPosition();
-        
-        hmm_vec3 pointAxis = HMM_Cross(fwd, to);
-        hmm_quaternion justPointAt;
-
-        // TODO: proper epsilon! and probably implement some kind of nan
-        // protection because a single nan ruins everything.
-        if (HMM_ABS(HMM_Length(pointAxis)) < 0.0001f) {
-            // Already pointing at the thing!
-            justPointAt = HMM_Quaternion(0.0f, 0.0f, 0.0f, 1.0f);
-        } else {
-            justPointAt = HMM_QuaternionFromAxisAngle(
-                pointAxis,
-                HMM_ACosF(HMM_Dot(HMM_Normalize(fwd), HMM_Normalize(to)))
-            );
-        }
-        
-        hmm_vec3 newUp = (HMM_QuaternionToMat4(justPointAt) * HMM_Vec4v(up, 0.0f)).XYZ;
-        hmm_quaternion backUpright = HMM_QuaternionFromAxisAngle(
-            to,
-            // TODO: This angle is not quite right! After this corrective rotation,
-            // the new up vector will *not* necessarily align with world up! So this
-            // will overshoot a little bit.
-            // 
-            // You should probably project the world up vector onto the plane of the
-            // to vector before you do the dot product. This is a good opportunity to
-            // add the vector projection stuff that we somehow have left out!
-            -HMM_ACosF(HMM_Dot(HMM_Normalize(newUp), HMM_Vec3(0.0f, 1.0f, 0.0f)))
-        );
-
-        return backUpright * justPointAt;
-
-        // BEN
-        // 
-        // YOU MUST ALWAYS REMEMBER THAT QUATERNION MULTIPLICATION IS NOT COMMUTATIVE
-        // AND THAT IT GOES RIGHT TO LEFT
-        // 
-        // NEVER FORGET THIS LEST YOU SUFFER THROUGH THIS MESS AGAIN
-    }
-};
-
-#endif

example/src/HandmadeMath.cpp

@@ -1,2 +0,0 @@
-#define HANDMADE_MATH_IMPLEMENTATION
-#include <HandmadeMath.h>

example/src/MeshRenderComponent.h

@@ -1,179 +0,0 @@
-#include <string>
-#include <vector>
-
-#ifndef HMME_MESH_RENDER_COMPONENT_H
-#define HMME_MESH_RENDER_COMPONENT_H
-
-#include "tiny_obj_loader.h"
-
-class MeshRenderComponent : public RenderComponent {
-public:
-    bool didLoad = false;
-
-    struct Shape {
-        GLuint vaoID = 0;
-        GLuint vertexBufferID = 0;
-        GLuint normalBufferID = 0;
-        GLuint uvBufferID = 0;
-        GLuint colorBufferID = 0;
-        int numVerts = 0;
-    };
-    std::vector<Shape> renderShapes;
-
-    MeshRenderComponent(const char *filename) {
-        // Load the model
-        tinyobj::attrib_t attrib;
-        std::vector<tinyobj::shape_t> shapes;
-        std::vector<tinyobj::material_t> materials;
-
-        std::string err;
-        bool ret = tinyobj::LoadObj(&attrib, &shapes, &materials, &err, filename);
-          
-        if (!err.empty()) { // `err` may contain warning message.
-            printf("Failed to load mesh: %s\n", err.c_str());
-        }
-
-        if (!ret) {
-            return;
-        }
-
-        for (auto shape : shapes) {
-            std::vector<tinyobj::real_t> vertices;
-            std::vector<tinyobj::real_t> normals;
-            std::vector<tinyobj::real_t> uvs;
-            std::vector<tinyobj::real_t> colors;
-
-            for (auto indices : shape.mesh.indices) {
-                if (indices.vertex_index > -1) {
-                    for (int i = 0; i < 3; i++) {
-                        int attribIndex = 3 * indices.vertex_index + i;
-                        vertices.push_back(attrib.vertices[attribIndex]);
-                        colors.push_back(attrib.colors[attribIndex]);
-                    }
-                }
-                if (indices.normal_index > -1) {
-                    for (int i = 0; i < 3; i++) {
-                        int attribIndex = 3 * indices.normal_index + i;
-                        normals.push_back(attrib.normals[attribIndex]);
-                    }
-                }
-                if (indices.texcoord_index > -1) {
-                    for (int i = 0; i < 2; i++) {
-                        int attribIndex = 2 * indices.texcoord_index + i;
-                        uvs.push_back(attrib.texcoords[attribIndex]);
-                    }
-                }
-            }
-
-            Shape s; // the new shape to insert into our list
-
-            glGenVertexArrays(1, &s.vaoID);
-
-            if (!vertices.empty()) {
-                glGenBuffers(1, &s.vertexBufferID);
-                glBindBuffer(GL_ARRAY_BUFFER, s.vertexBufferID);
-                glBufferData(GL_ARRAY_BUFFER, sizeof(tinyobj::real_t) * vertices.size(), &vertices.front(), GL_STATIC_DRAW);
-
-                glGenBuffers(1, &s.colorBufferID);
-                glBindBuffer(GL_ARRAY_BUFFER, s.colorBufferID);
-                glBufferData(GL_ARRAY_BUFFER, sizeof(tinyobj::real_t) * colors.size(), &colors.front(), GL_STATIC_DRAW);
-            }
-            
-            if (!normals.empty()) {
-                glGenBuffers(1, &s.normalBufferID);
-                glBindBuffer(GL_ARRAY_BUFFER, s.normalBufferID);
-                glBufferData(GL_ARRAY_BUFFER, sizeof(tinyobj::real_t) * normals.size(), &normals.front(), GL_STATIC_DRAW);
-            }
-
-            if (!uvs.empty()) {
-                glGenBuffers(1, &s.uvBufferID);
-                glBindBuffer(GL_ARRAY_BUFFER, s.uvBufferID);
-                glBufferData(GL_ARRAY_BUFFER, sizeof(tinyobj::real_t) * uvs.size(), &uvs.front(), GL_STATIC_DRAW);
-            }
-
-            s.numVerts = vertices.size() / 3;
-
-            renderShapes.push_back(s);
-        }
-
-        didLoad = true;
-    }
-
-    void Draw() override {
-        if (!didLoad) {
-            return;
-        }
-
-        for (auto s : renderShapes) {
-            glBindVertexArray(s.vaoID);
-
-            // 1st attribute buffer : vertices
-            glEnableVertexAttribArray(0);
-            glBindBuffer(GL_ARRAY_BUFFER, s.vertexBufferID);
-            glVertexAttribPointer(
-               0,                  // attribute 0. No particular reason for 0, but must match the layout in the shader.
-               3,                  // size
-               GL_FLOAT,           // type
-               GL_FALSE,           // normalized?
-               0,                  // stride
-               (void*)0            // array buffer offset
-            );
-
-            // 2nd attribute buffer : colors
-            glEnableVertexAttribArray(1);
-            glBindBuffer(GL_ARRAY_BUFFER, s.colorBufferID);
-            glVertexAttribPointer(
-                1,                 // attribute. No particular reason for 1, but must match the layout in the shader.
-                3,                 // size
-                GL_FLOAT,          // type
-                GL_FALSE,          // normalized?
-                0,                 // stride
-                (void*)0           // array buffer offset
-            );
-
-            if (s.normalBufferID != 0) {
-                // 3rd attribute buffer : normals
-                glEnableVertexAttribArray(2);
-                glBindBuffer(GL_ARRAY_BUFFER, s.normalBufferID);
-                glVertexAttribPointer(
-                    2,                 // must match the layout in the shader
-                    3,                 // size
-                    GL_FLOAT,          // type
-                    GL_FALSE,          // normalized?
-                    0,                 // stride
-                    (void*)0           // array buffer offset
-                );
-            }
-
-            if (s.uvBufferID != 0) {
-                // 4th attribute buffer : uvs
-                glEnableVertexAttribArray(3);
-                glBindBuffer(GL_ARRAY_BUFFER, s.normalBufferID);
-                glVertexAttribPointer(
-                    3,                 // must match the layout in the shader
-                    2,                 // size
-                    GL_FLOAT,          // type
-                    GL_FALSE,          // normalized?
-                    0,                 // stride
-                    (void*)0           // array buffer offset
-                );
-            }
-            
-            // Shader??
-
-            // Draw the triangle!
-            glDrawArrays(GL_TRIANGLES, 0, s.numVerts); // Starting from vertex 0; 3 vertices total -> 1 triangle
-            
-            glDisableVertexAttribArray(0);
-            glDisableVertexAttribArray(1);
-            if (s.normalBufferID != 0) {
-                glDisableVertexAttribArray(2);
-            }
-            if (s.uvBufferID != 0) {
-                glDisableVertexAttribArray(3);
-            }
-        }
-    }
-};
-
-#endif

example/src/RenderComponent.h

@@ -1,13 +0,0 @@
-#include <HandmadeMath.h>
-
-#ifndef HMME_RENDER_COMPONENT_H
-#define HMME_RENDER_COMPONENT_H
-
-#include "Entity.h"
-
-class RenderComponent {
-public:
-    virtual void Draw() = 0;
-};
-
-#endif

example/src/debug.h

@@ -1,28 +0,0 @@
-#include <stdio.h>
-
-#ifndef DEBUG_H
-#define DEBUG_H
-
-#include "HandmadeMath.h"
-
-void printVec3(hmm_vec3 v) {
-    printf("%f\t%f\t%f\n", v.X, v.Y, v.Z);
-}
-
-void printVec4(hmm_vec4 v) {
-    printf("%f\t%f\t%f\t%f\n", v.X, v.Y, v.Z, v.W);
-}
-
-void printQuaternion(hmm_quaternion q) {
-    printf("%f\t%f\t%f\t%f\n", q.X, q.Y, q.Z, q.W);
-}
-
-void printMat4(hmm_mat4 m) {
-    printf("/\n");
-    for (int r = 0; r < 4; r++) {
-        printf("| %f\t%f\t%f\t%f |\n", m[0][r], m[1][r], m[2][r], m[3][r]);
-    }
-    printf("\\\n");
-}
-
-#endif

example/src/fragment.glsl

@@ -1,18 +0,0 @@
-#version 330 core
-
-in vec3 fragmentPosition_world;
-in vec3 fragmentColor;
-in vec3 fragmentNormal_world;
-in vec2 fragmentUV;
-
-out vec3 color;
-
-void main() {
-    vec3 ambient = vec3(0.1, 0.1, 0.1);
-
-    vec3 toLight_world = normalize(vec3(1, 1, 1));
-
-    float cosTheta = clamp(dot(normalize(fragmentNormal_world), toLight_world), 0.1, 1);
-
-    color = cosTheta * fragmentColor + ambient;
-}

example/src/input.h

@@ -1,19 +0,0 @@
-#include <GLFW/glfw3.h>
-
-#ifndef HMME_INPUT_H
-#define HMME_INPUT_H
-
-struct Input {
-    double mouseX;
-    double mouseY;
-};
-
-Input GetInput(GLFWwindow *window) {
-    Input i;
-
-    glfwGetCursorPos(window, &i.mouseX, &i.mouseY);
-
-    return i;
-}
-
-#endif

example/src/main.cpp

@@ -1,190 +0,0 @@
-#include <stdio.h>
-#include <chrono>
-#include <unistd.h>
-
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-
-#include <HandmadeMath.h>
-
-#include "input.h"
-#include "shaders.h"
-
-#include "Entity.h"
-#include "Cube.h"
-#include "MeshRenderComponent.h"
-#include "FPSCam.h"
-
-void TickTree(Entity *e, float deltaSeconds, Input previousInput, Input input);
-void ComputeModelMatrices(Entity *ep, hmm_mat4 parentModelMatrix);
-void HandleMouseMove(GLFWwindow *window, double mouseX, double mouseY);
-
-using std::chrono::high_resolution_clock;
-
-#define WIDTH 1024
-#define HEIGHT 768
-
-int main() {
-    // Initialise GLFW
-    glewExperimental = true; // Needed for core profile
-    if (!glfwInit()) {
-        fprintf( stderr, "Failed to initialize GLFW\n" );
-        return -1;
-    }
-
-    glfwWindowHint(GLFW_SAMPLES, 4); // 4x antialiasing
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // We want OpenGL 3.3
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // To make MacOS happy; should not be needed
-    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // We don't want the old OpenGL 
-
-    // Open a window and create its OpenGL context
-    GLFWwindow* window; // (In the accompanying source code, this variable is global for simplicity)
-    window = glfwCreateWindow(WIDTH, HEIGHT, "Handmade Math Example", NULL, NULL);
-    if (window == NULL) {
-        fprintf( stderr, "Failed to open GLFW window. If you have an Intel GPU, they are not 3.3 compatible. Try the 2.1 version of the tutorials.\n" );
-        glfwTerminate();
-        return -1;
-    }
-    glfwMakeContextCurrent(window); // Initialize GLEW
-    glewExperimental=true; // Needed in core profile
-    if (glewInit() != GLEW_OK) {
-        fprintf(stderr, "Failed to initialize GLEW\n");
-        return -1;
-    }
-
-    // Ensure we can capture the escape key being pressed below
-    glfwSetInputMode(window, GLFW_STICKY_KEYS, GL_TRUE);
-
-    // Hide the mouse cursor
-    glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
-    // glfwSetCursorPos(window, WIDTH / 2, HEIGHT / 2);
-    // glfwSetCursorPosCallback(window, [](GLFWwindow *window, double mouseX, double mouseY) {
-    //     printf("%f\t%f\n", mouseX, mouseY);
-    //     // glfwSetCursorPos(window, WIDTH / 2, HEIGHT / 2);
-    // });
-
-    // Create and compile our GLSL program from the shaders
-    GLuint programID = LoadShaders("src/vertex.glsl", "src/fragment.glsl");
-    if (!programID) {
-        return 1;
-    }
-
-    // Get a handle for our "MVP" uniform
-    // Only during the initialisation
-    GLuint uniformID_M = glGetUniformLocation(programID, "M");
-    GLuint uniformID_V = glGetUniformLocation(programID, "V");
-    GLuint uniformID_MVP = glGetUniformLocation(programID, "MVP");
-
-    // Enable depth test
-    glEnable(GL_DEPTH_TEST);
-    // Accept fragment if it closer to the camera than the former one
-    glDepthFunc(GL_LESS);
-
-    Cube c1 = Cube();
-
-    Entity monkey = Entity();
-    monkey.position = HMM_Vec3(2.1f, 0.0f, 0.0f);
-    monkey.renderComponent = new MeshRenderComponent("MonkeySmooth.obj");
-
-    Entity backmonkey = Entity();
-    backmonkey.position = HMM_Vec3(0.0f, 0.0f, 5.0f);
-    backmonkey.renderComponent = new MeshRenderComponent("MonkeySmooth.obj");
-
-    FPSCam fpsCam = FPSCam();
-    fpsCam.position = HMM_Vec3(-1.0f, 1.0f, 3.0f);
-
-    Entity *cam = &fpsCam.cam;
-
-    // Cube c = Cube();
-    // monkey.position = HMM_Vec3(2.1f, 0.0f, 0.0f);
-
-    // monkey.AddChild(&c);
-    
-    c1.AddChild(&monkey);
-
-    Entity root = Entity();
-    root.AddChild(&c1);
-    root.AddChild(&fpsCam);
-    root.AddChild(&backmonkey);
-
-    Entity axes = Entity();
-    axes.renderComponent = new MeshRenderComponent("Axes.obj");
-    root.AddChild(&axes);
-
-    bool hasTicked = false;
-    high_resolution_clock::time_point lastTickTime;
-
-    Input previousInput = GetInput(window);
-
-    do {
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-        // Get inputs
-        Input input = GetInput(window);
-
-        // Tick
-        auto now = high_resolution_clock::now();
-        if (hasTicked) {
-            auto elapsedNanoseconds = std::chrono::duration_cast<std::chrono::nanoseconds>(now - lastTickTime).count();
-            float elapsedSeconds = elapsedNanoseconds / 1000000000.0f;
-            TickTree(&root, elapsedSeconds, previousInput, input);
-        }
-        lastTickTime = now;
-        hasTicked = true;
-        previousInput = input;
-
-        // Compute model positions for rendering
-        ComputeModelMatrices(&root, HMM_Mat4d(1.0f));
-
-        // Render!
-        hmm_mat4 projection = cam->projectionMatrix();
-        hmm_mat4 view = cam->viewMatrix();
-        hmm_mat4 vp = projection * view;
-
-        auto it = EntityIterator(&root);
-        while (it.HasNext()) {
-            Entity *e = it.Next();
-
-            if (e->renderComponent) {
-                // Use our shader
-                glUseProgram(programID);
-
-                // Send uniforms
-                glUniformMatrix4fv(uniformID_M, 1, GL_FALSE, &e->modelMatrix.Elements[0][0]);
-
-                glUniformMatrix4fv(uniformID_V, 1, GL_FALSE, &view.Elements[0][0]);
-
-                hmm_mat4 mvp = vp * e->modelMatrix;
-                glUniformMatrix4fv(uniformID_MVP, 1, GL_FALSE, &mvp.Elements[0][0]);
-
-                e->renderComponent->Draw();
-            }
-        }
-
-        // Swap buffers
-        glfwSwapBuffers(window);
-        glfwPollEvents();
-    } while (
-        // Check if the ESC key was pressed or the window was closed
-        glfwGetKey(window, GLFW_KEY_ESCAPE) != GLFW_PRESS
-        && glfwWindowShouldClose(window) == 0
-    );
-}
-
-void TickTree(Entity *e, float deltaSeconds, Input previousInput, Input input) {
-    e->Tick(deltaSeconds, previousInput, input);
-
-    for (auto child : e->children) {
-        TickTree(child, deltaSeconds, previousInput, input);
-    }
-}
-
-void ComputeModelMatrices(Entity *e, hmm_mat4 parentModelMatrix) {
-    e->parentModelMatrix = parentModelMatrix;
-    e->modelMatrix = parentModelMatrix * HMM_Translate(e->position) * HMM_QuaternionToMat4(e->rotation) * HMM_Scale(e->scale);
-
-    for (int i = 0; i < e->children.size(); i++) {
-        ComputeModelMatrices(e->children[i], e->modelMatrix);
-    }
-}

example/src/shaders.cpp

@@ -1,94 +0,0 @@
-#include <stdio.h>
-#include <string>
-#include <vector>
-#include <iostream>
-#include <fstream>
-#include <sstream>
-
-#include "shaders.h"
-
-GLuint LoadShaders(const char * vertex_file_path, const char * fragment_file_path) {
-    // Create the shaders
-    GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
-    GLuint FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
-
-    // Read the Vertex Shader code from the file
-    std::string VertexShaderCode;
-    std::ifstream VertexShaderStream(vertex_file_path, std::ios::in);
-    if(VertexShaderStream.is_open()){
-        std::stringstream sstr;
-        sstr << VertexShaderStream.rdbuf();
-        VertexShaderCode = sstr.str();
-        VertexShaderStream.close();
-    }else{
-        printf("Impossible to open %s. Are you in the right directory ? Don't forget to read the FAQ !\n", vertex_file_path);
-        return 0;
-    }
-
-    // Read the Fragment Shader code from the file
-    std::string FragmentShaderCode;
-    std::ifstream FragmentShaderStream(fragment_file_path, std::ios::in);
-    if(FragmentShaderStream.is_open()){
-        std::stringstream sstr;
-        sstr << FragmentShaderStream.rdbuf();
-        FragmentShaderCode = sstr.str();
-        FragmentShaderStream.close();
-    }
-
-    GLint Result = GL_FALSE;
-    int InfoLogLength;
-
-    // Compile Vertex Shader
-    printf("Compiling shader : %s\n", vertex_file_path);
-    char const * VertexSourcePointer = VertexShaderCode.c_str();
-    glShaderSource(VertexShaderID, 1, &VertexSourcePointer , NULL);
-    glCompileShader(VertexShaderID);
-
-    // Check Vertex Shader
-    glGetShaderiv(VertexShaderID, GL_COMPILE_STATUS, &Result);
-    glGetShaderiv(VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-    if ( InfoLogLength > 0 ){
-        std::vector<char> VertexShaderErrorMessage(InfoLogLength+1);
-        glGetShaderInfoLog(VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]);
-        printf("%s\n", &VertexShaderErrorMessage[0]);
-    }
-
-    // Compile Fragment Shader
-    printf("Compiling shader : %s\n", fragment_file_path);
-    char const * FragmentSourcePointer = FragmentShaderCode.c_str();
-    glShaderSource(FragmentShaderID, 1, &FragmentSourcePointer , NULL);
-    glCompileShader(FragmentShaderID);
-
-    // Check Fragment Shader
-    glGetShaderiv(FragmentShaderID, GL_COMPILE_STATUS, &Result);
-    glGetShaderiv(FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-    if ( InfoLogLength > 0 ){
-        std::vector<char> FragmentShaderErrorMessage(InfoLogLength+1);
-        glGetShaderInfoLog(FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[0]);
-        printf("%s\n", &FragmentShaderErrorMessage[0]);
-    }
-
-    // Link the program
-    printf("Linking program\n");
-    GLuint ProgramID = glCreateProgram();
-    glAttachShader(ProgramID, VertexShaderID);
-    glAttachShader(ProgramID, FragmentShaderID);
-    glLinkProgram(ProgramID);
-
-    // Check the program
-    glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
-    glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
-    if ( InfoLogLength > 0 ){
-        std::vector<char> ProgramErrorMessage(InfoLogLength+1);
-        glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[0]);
-        printf("%s\n", &ProgramErrorMessage[0]);
-    }
-    
-    glDetachShader(ProgramID, VertexShaderID);
-    glDetachShader(ProgramID, FragmentShaderID);
-    
-    glDeleteShader(VertexShaderID);
-    glDeleteShader(FragmentShaderID);
-
-    return ProgramID;
-}

example/src/shaders.h

@@ -1,9 +0,0 @@
-#include <GL/glew.h>
-#include <GLFW/glfw3.h>
-
-#ifndef HMME_SHADERS_H
-#define HMME_SHADERS_H
-
-GLuint LoadShaders(const char * vertex_file_path, const char * fragment_file_path);
-
-#endif

example/src/tiny_obj_loader.cpp

@@ -1,2 +0,0 @@
-#define TINYOBJLOADER_IMPLEMENTATION
-#include "tiny_obj_loader.h"

example/src/vertex.glsl

@@ -1,28 +0,0 @@
-#version 330 core
-
-// These match the values in glVertexAttribPointer
-layout(location = 0) in vec3 vertexPosition_model;
-layout(location = 1) in vec3 vertexColor;
-layout(location = 2) in vec3 vertexNormal_model;
-layout(location = 3) in vec2 vertexUV;
-
-uniform mat4 M;
-uniform mat4 V;
-uniform mat4 MVP;
-
-out vec3 fragmentPosition_world;
-out vec3 fragmentColor;
-out vec3 fragmentNormal_world;
-out vec2 fragmentUV;
-  
-void main(){
-    // Output position of the vertex, in clip space : MVP * position
-    gl_Position = MVP * vec4(vertexPosition_model, 1);
-    fragmentPosition_world = (M * vec4(vertexPosition_model, 1)).xyz;
-
-    fragmentColor = vertexColor;
-
-    fragmentNormal_world = (M * vec4(vertexNormal_model, 0)).xyz;
-
-    fragmentUV = vertexUV;
-}

test/HandmadeMath.c

@@ -1,3 +1,7 @@
+#ifndef WITHOUT_COVERAGE
+#include "HandmadeTest.h"
+#endif
+
 #define HANDMADE_MATH_IMPLEMENTATION
 #define HANDMADE_MATH_NO_INLINE
 #include "../HandmadeMath.h"

test/HandmadeMathDifferentPrefix.cpp

@@ -0,0 +1,12 @@
+#define HMM_PREFIX(name) WOW_##name
+
+#define HANDMADE_MATH_IMPLEMENTATION
+#define HANDMADE_MATH_NO_INLINE
+#include "../HandmadeMath.h"
+
+int main() {
+    hmm_vec4 a = WOW_Vec4(1, 2, 3, 4);
+    hmm_vec4 b = WOW_Vec4(5, 6, 7, 8);
+
+    WOW_Add(a, b);
+}

test/HandmadeTest.h

@@ -4,6 +4,12 @@
   This is Handmade Math's test framework. It is fully compatible with both C
   and C++, although it requires some compiler-specific features.
 
+  To use Handmade Test, you must #define HANDMADE_TEST_IMPLEMENTATION in
+  exactly one C or C++ file that includes the header, like this:
+
+    #define HANDMADE_TEST_IMPLEMENTATION
+    #include "HandmadeTest.h"
+
   The basic way of creating a test is using the TEST macro, which registers a
   single test to be run:
 
@@ -11,11 +17,32 @@
         // test code, including asserts/expects
     }
 
-  The main function of your test code should then call hmt_run_all_tests and
+  Handmade Test also provides macros you can use to check the coverage of
-  return the result:
+  important parts of your code. Define a coverage case by using the COVERAGE
+  macro outside the function you wish to test, providing both a name and the
+  number of asserts you expect to see covered over the course of your test.
+  Then use the ASSERT_COVERED macro in every part of the function you wish to
+  check coverage on. For example:
+
+    COVERAGE(MyCoverageCase, 3)
+    void MyFunction(int a, int b) {
+        if (a > b) {
+            ASSERT_COVERED(MyCoverageCase);
+            return 10;
+        } else if (a < b) {
+            ASSERT_COVERED(MyCoverageCase);
+            return -10;
+        }
+
+        ASSERT_COVERED(MyCoverageCase);
+        return 0;
+    }
+
+  The main function of your test code should then call hmt_run_all_tests (and
+  optionally hmt_check_all_coverage) and return the result:
 
     int main() {
-        return hmt_run_all_tests();
+        return hmt_run_all_tests() || hmt_check_all_coverage();
     }
 
   =============================================================================
@@ -40,7 +67,7 @@
 #define HMT_RED   "\033[31m"
 #define HMT_GREEN "\033[32m"
 
-#define HMT_INITIAL_ARRAY_SIZE 1024
+#define HMT_ARRAY_SIZE 1024
 
 typedef struct hmt_testresult_struct {
     int count_cases;
@@ -57,20 +84,137 @@ typedef struct hmt_test_struct {
 typedef struct hmt_category_struct {
     const char* name;
     int num_tests;
-    int tests_capacity;
     hmt_test* tests;
 } hmt_category;
 
-int hmt_num_categories = 0;
+typedef struct hmt_covercase_struct {
-int hmt_category_capacity = HMT_INITIAL_ARRAY_SIZE;
+    const char* name;
-hmt_category* categories = 0;
+    int expected_asserts;
+    int actual_asserts;
+    int* asserted_lines;
+} hmt_covercase;
+
+hmt_category _hmt_new_category(const char* name);
+hmt_test _hmt_new_test(const char* name, hmt_test_func func);
+hmt_covercase _hmt_new_covercase(const char* name, int expected);
+void _hmt_register_test(const char* category, const char* name, hmt_test_func func);
+void _hmt_register_covercase(const char* name, const char* expected_asserts);
+void _hmt_count_cover(const char* name, int line);
+
+#define _HMT_TEST_FUNCNAME(category, name) _hmt_test_ ## category ## _ ## name
+#define _HMT_TEST_FUNCNAME_INIT(category, name) _hmt_test_ ## category ## _ ## name ## _init
+#define _HMT_COVERCASE_FUNCNAME_INIT(name) _hmt_covercase_ ## name ## _init
+
+#define HMT_TEST(category, name) \
+void _HMT_TEST_FUNCNAME(category, name)(hmt_testresult* _result); \
+INITIALIZER(_HMT_TEST_FUNCNAME_INIT(category, name)) { \
+    _hmt_register_test(#category, #name, _HMT_TEST_FUNCNAME(category, name)); \
+} \
+void _HMT_TEST_FUNCNAME(category, name)(hmt_testresult* _result)
+
+#define _HMT_CASE_START() \
+    _result->count_cases++;
+
+#define _HMT_CASE_FAIL() \
+    _result->count_failures++; \
+    printf("\n      - " HMT_RED "[FAIL] (line %d) " HMT_RESET, __LINE__);
+
+#define HMT_COVERAGE(name, num_asserts) \
+INITIALIZER(_HMT_COVERCASE_FUNCNAME_INIT(name)) { \
+    _hmt_register_covercase(#name, #num_asserts); \
+} \
+
+#define HMT_ASSERT_COVERED(name) \
+{ \
+    _hmt_count_cover(#name, __LINE__); \
+} \
+
+/*
+ * Asserts and expects
+ */
+#define HMT_EXPECT_TRUE(_actual) { \
+    _HMT_CASE_START(); \
+    if (!(_actual)) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected true but got something false"); \
+    } \
+} \
+
+#define HMT_EXPECT_FALSE(_actual) { \
+    _HMT_CASE_START(); \
+    if (_actual) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected false but got something true"); \
+    } \
+} \
+
+#define HMT_EXPECT_FLOAT_EQ(_actual, _expected) { \
+    _HMT_CASE_START(); \
+    float actual = (_actual); \
+    float diff = actual - (_expected); \
+    if (diff < -FLT_EPSILON || FLT_EPSILON < diff) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected %f, got %f", (_expected), actual); \
+    } \
+} \
+
+#define HMT_EXPECT_NEAR(_actual, _expected, _epsilon) { \
+    _HMT_CASE_START(); \
+    float actual = (_actual); \
+    float diff = actual - (_expected); \
+    if (diff < -(_epsilon) || (_epsilon) < diff) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected %f, got %f", (_expected), actual); \
+    } \
+} \
+
+#define HMT_EXPECT_LT(_actual, _expected) { \
+    _HMT_CASE_START(); \
+    if ((_actual) >= (_expected)) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected %f to be less than %f", (_actual), (_expected)); \
+    } \
+} \
+
+#define HMT_EXPECT_GT(_actual, _expected) { \
+    _HMT_CASE_START(); \
+    if ((_actual) <= (_expected)) { \
+        _HMT_CASE_FAIL(); \
+        printf("Expected %f to be greater than %f", (_actual), (_expected)); \
+    } \
+} \
+
+#ifndef HMT_SAFE_MACROS
+// Friendly defines
+#define TEST(category, name) HMT_TEST(category, name)
+#define COVERAGE(name, expected_asserts) HMT_COVERAGE(name, expected_asserts)
+#define ASSERT_COVERED(name) HMT_ASSERT_COVERED(name)
+#define EXPECT_TRUE(_actual) HMT_EXPECT_TRUE(_actual)
+#define EXPECT_FALSE(_actual) HMT_EXPECT_FALSE(_actual)
+#define EXPECT_FLOAT_EQ(_actual, _expected) HMT_EXPECT_FLOAT_EQ(_actual, _expected)
+#define EXPECT_NEAR(_actual, _expected, _epsilon) HMT_EXPECT_NEAR(_actual, _expected, _epsilon)
+#define EXPECT_LT(_actual, _expected) HMT_EXPECT_LT(_actual, _expected)
+#define EXPECT_GT(_actual, _expected) HMT_EXPECT_GT(_actual, _expected)
+#endif // HMT_SAFE_MACROS
+
+#endif // HANDMADETEST_H
+
+#ifdef HANDMADE_TEST_IMPLEMENTATION
+
+#ifndef HANDMADE_TEST_IMPLEMENTATION_GUARD
+#define HANDMADE_TEST_IMPLEMENTATION_GUARD
+
+int _hmt_num_categories = 0;
+hmt_category* _hmt_categories = 0;
+
+int _hmt_num_covercases = 0;
+hmt_covercase* _hmt_covercases = 0;
 
 hmt_category _hmt_new_category(const char* name) {
     hmt_category cat = {
-        .name = name,
+        name, // name
-        .num_tests = 0,
+        0, // num_tests
-        .tests_capacity = HMT_INITIAL_ARRAY_SIZE,
+        (hmt_test*) malloc(HMT_ARRAY_SIZE * sizeof(hmt_test)), // tests
-        .tests = (hmt_test*) malloc(HMT_INITIAL_ARRAY_SIZE * sizeof(hmt_test))
     };
 
     return cat;
@@ -78,59 +222,104 @@ hmt_category _hmt_new_category(const char* name) {
 
 hmt_test _hmt_new_test(const char* name, hmt_test_func func) {
     hmt_test test = {
-        .name = name,
+        name, // name
-        .func = func
+        func, // func
     };
 
     return test;
 }
 
-int hmt_register_test(const char* category, const char* name, hmt_test_func func) {
+hmt_covercase _hmt_new_covercase(const char* name, int expected) {
+    hmt_covercase covercase = {
+        name, // name
+        expected, // expected_asserts
+        0, // actual_asserts
+        (int*) malloc(HMT_ARRAY_SIZE * sizeof(int)), // asserted_lines
+    };
+
+    return covercase;
+}
+
+void _hmt_register_test(const char* category, const char* name, hmt_test_func func) {
     // initialize categories array if not initialized
-    if (!categories) {
+    if (!_hmt_categories) {
-        categories = (hmt_category*) malloc(hmt_category_capacity * sizeof(hmt_category));
+        _hmt_categories = (hmt_category*) malloc(HMT_ARRAY_SIZE * sizeof(hmt_category));
     }
 
     // Find the matching category, if possible
     int cat_index;
-    for (cat_index = 0; cat_index < hmt_num_categories; cat_index++) {
+    for (cat_index = 0; cat_index < _hmt_num_categories; cat_index++) {
-        if (strcmp(categories[cat_index].name, category) == 0) {
+        if (strcmp(_hmt_categories[cat_index].name, category) == 0) {
             break;
         }
     }
 
-    // Expand the array of categories if necessary
-    if (cat_index >= hmt_category_capacity) {
-        // TODO: If/when we ever split HandmadeTest off into its own package,
-        // we should start with a smaller initial capacity and dynamically expand.
-    }
-
     // Add a new category if necessary
-    if (cat_index >= hmt_num_categories) {
+    if (cat_index >= _hmt_num_categories) {
-        categories[cat_index] = _hmt_new_category(category);
+        _hmt_categories[cat_index] = _hmt_new_category(category);
-        hmt_num_categories++;
+        _hmt_num_categories++;
     }
 
-    hmt_category* cat = &categories[cat_index];
+    hmt_category* cat = &_hmt_categories[cat_index];
 
     // Add the test to the category
-    if (cat->num_tests >= cat->tests_capacity) {
-        // TODO: If/when we ever split HandmadeTest off into its own package,
-        // we should start with a smaller initial capacity and dynamically expand.
-    }
     cat->tests[cat->num_tests] = _hmt_new_test(name, func);
     cat->num_tests++;
+}
+
+void _hmt_register_covercase(const char* name, const char* expected_asserts) {
+    // initialize cases array if not initialized
+    if (!_hmt_covercases) {
+        _hmt_covercases = (hmt_covercase*) malloc(HMT_ARRAY_SIZE * sizeof(hmt_covercase));
+    }
+
+    // check for existing case with that name, because the macro can run multiple
+    // times in different translation units
+    for (int i = 0; i < _hmt_num_covercases; i++) {
+        if (strcmp(_hmt_covercases[i].name, name) == 0) {
+            return;
+        }
+    }
+
+    _hmt_covercases[_hmt_num_covercases] = _hmt_new_covercase(name, atoi(expected_asserts));
+    _hmt_num_covercases++;
+}
+
+hmt_covercase* _hmt_find_covercase(const char* name) {
+    for (int i = 0; i < _hmt_num_covercases; i++) {
+        if (strcmp(_hmt_covercases[i].name, name) == 0) {
+            return &_hmt_covercases[i];
+        }
+    }
 
     return 0;
 }
 
+void _hmt_count_cover(const char* name, int line) {
+    hmt_covercase* covercase = _hmt_find_covercase(name);
+    if (covercase == 0) {
+        printf(HMT_RED "ERROR (line %d): Could not find coverage case with name \"%s\".\n" HMT_RESET, line, name);
+        return;
+    }
+
+    // see if this line has already been covered
+    for (int i = 0; i < covercase->actual_asserts; i++) {
+        if (covercase->asserted_lines[i] == line) {
+            return;
+        }
+    }
+
+    covercase->asserted_lines[covercase->actual_asserts] = line;
+    covercase->actual_asserts++;
+}
+
 int hmt_run_all_tests() {
     int count_alltests = 0;
     int count_allfailedtests = 0; // failed test cases
     int count_allfailures = 0; // failed asserts
 
-    for (int i = 0; i < hmt_num_categories; i++) {
+    for (int i = 0; i < _hmt_num_categories; i++) {
-        hmt_category cat = categories[i];
+        hmt_category cat = _hmt_categories[i];
         int count_catfailedtests = 0;
         int count_catfailures = 0;
 
@@ -142,8 +331,8 @@ int hmt_run_all_tests() {
             printf("    %s:", test.name);
 
             hmt_testresult result = {
-                .count_cases = 0,
+                0, // count_cases
-                .count_failures = 0
+                0, // count_failures
             };
             test.func(&result);
 
@@ -177,87 +366,33 @@ int hmt_run_all_tests() {
     return (count_allfailedtests > 0);
 }
 
-#define _HMT_TEST_FUNCNAME(category, name) category ## _ ## name
+int hmt_check_all_coverage() {
-#define _HMT_TEST_FUNCNAME_INIT(category, name) category ## _ ## name ## _init
+    printf("Coverage:\n");
 
-#define HMT_TEST(category, name) \
+    int count_failures = 0;
-void _HMT_TEST_FUNCNAME(category, name)(hmt_testresult* _result); \
-INITIALIZER(_HMT_TEST_FUNCNAME_INIT(category, name)) { \
-    hmt_register_test(#category, #name, _HMT_TEST_FUNCNAME(category, name)); \
-} \
-void _HMT_TEST_FUNCNAME(category, name)(hmt_testresult* _result)
 
-#define _HMT_CASE_START() \
+    for (int i = 0; i < _hmt_num_covercases; i++) {
-    _result->count_cases++;
+        hmt_covercase covercase = _hmt_covercases[i];
 
-#define _HMT_CASE_FAIL() \
+        if (covercase.expected_asserts != covercase.actual_asserts) {
-    _result->count_failures++; \
+            count_failures++;
-    printf("\n      - " HMT_RED "[FAIL] (%d) " HMT_RESET, __LINE__);
+            printf("%s: " HMT_RED "FAIL (expected %d asserts, got %d)\n" HMT_RESET, covercase.name, covercase.expected_asserts, covercase.actual_asserts);
+        }
+    }
 
-/*
+    if (count_failures > 0) {
- * Asserts and expects
+        printf("\n");
- */
+        printf(HMT_RED);
-#define HMT_EXPECT_TRUE(_actual) do { \
+    } else {
-    _HMT_CASE_START(); \
+        printf(HMT_GREEN);
-    if (!(_actual)) { \
+    }
-        _HMT_CASE_FAIL(); \
+    printf("%d coverage cases tested, %d failures\n", _hmt_num_covercases, count_failures);
-        printf("Expected true but got something false"); \
+    printf(HMT_RESET);
-    } \
-} while (0)
 
-#define HMT_EXPECT_FALSE(_actual) do { \
+    printf("\n");
-    _HMT_CASE_START(); \
-    if (_actual) { \
-        _HMT_CASE_FAIL(); \
-        printf("Expected false but got something true"); \
-    } \
-} while (0)
 
-#define HMT_EXPECT_FLOAT_EQ(_actual, _expected) do { \
+    return (count_failures > 0);
-    _HMT_CASE_START(); \
+}
-    float actual = (_actual); \
-    float diff = actual - (_expected); \
-    if (diff < -FLT_EPSILON || FLT_EPSILON < diff) { \
-        _HMT_CASE_FAIL(); \
-        printf("Expected %f, got %f", (_expected), actual); \
-    } \
-} while (0)
 
-#define HMT_EXPECT_NEAR(_actual, _expected, _epsilon) do { \
+#endif // HANDMADE_TEST_IMPLEMENTATION_GUARD
-    _HMT_CASE_START(); \
+#endif // HANDMADE_TEST_IMPLEMENTATION
-    float actual = (_actual); \
-    float diff = actual - (_expected); \
-    if (diff < -(_epsilon) || (_epsilon) < diff) { \
-        _HMT_CASE_FAIL(); \
-        printf("Expected %f, got %f", (_expected), actual); \
-    } \
-} while (0)
-
-#define HMT_EXPECT_LT(_actual, _expected) do { \
-    _HMT_CASE_START(); \
-    if ((_actual) >= (_expected)) { \
-        _HMT_CASE_FAIL(); \
-        printf("Expected %f to be less than %f", (_actual), (_expected)); \
-    } \
-} while (0)
-
-#define HMT_EXPECT_GT(_actual, _expected) do { \
-    _HMT_CASE_START(); \
-    if ((_actual) <= (_expected)) { \
-        _HMT_CASE_FAIL(); \
-        printf("Expected %f to be greater than %f", (_actual), (_expected)); \
-    } \
-} while (0)
-
-#ifndef HMT_SAFE_MACROS
-// Friendly defines
-#define TEST(category, name) HMT_TEST(category, name)
-#define EXPECT_TRUE(_actual) HMT_EXPECT_TRUE(_actual)
-#define EXPECT_FALSE(_actual) HMT_EXPECT_FALSE(_actual)
-#define EXPECT_FLOAT_EQ(_actual, _expected) HMT_EXPECT_FLOAT_EQ(_actual, _expected)
-#define EXPECT_NEAR(_actual, _expected, _epsilon) HMT_EXPECT_NEAR(_actual, _expected, _epsilon)
-#define EXPECT_LT(_actual, _expected) HMT_EXPECT_LT(_actual, _expected)
-#define EXPECT_GT(_actual, _expected) HMT_EXPECT_GT(_actual, _expected)
-#endif // HMT_SAFE_MACROS
-
-#endif // HANDMADETEST_H

test/Makefile

@@ -1,13 +1,18 @@
-BUILD_DIR=build
+BUILD_DIR=./build
 
-CXXFLAGS+=-g -Wall -Wextra -pthread -Wno-missing-braces -Wno-missing-field-initializers
+CXXFLAGS+=-g -Wall -Wextra -pthread -Wno-missing-braces -Wno-missing-field-initializers -Wfloat-equal
 
-all: c c_no_sse cpp cpp_no_sse
+all: c c_no_sse cpp cpp_no_sse build_c_without_coverage build_cpp_without_coverage build_cpp_different_prefix
+
+build_all: build_c build_c_no_sse build_cpp build_cpp_no_sse
 
 clean:
 	rm -rf $(BUILD_DIR)
 
-c: HandmadeMath.c test_impl
+c: build_c
+	$(BUILD_DIR)/hmm_test_c
+
+build_c: HandmadeMath.c test_impl
 	@echo "\nCompiling in C mode"
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR)\
@@ -16,7 +21,10 @@ c: HandmadeMath.c test_impl
 			-lm \
 		&& $(CC) -ohmm_test_c HandmadeMath.o hmm_test.o -lm
 
-c_no_sse: HandmadeMath.c test_impl
+c_no_sse: build_c_no_sse
+	$(BUILD_DIR)/hmm_test_c_no_sse
+
+build_c_no_sse: HandmadeMath.c test_impl
 	@echo "\nCompiling in C mode (no SSE)"
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR) \
@@ -26,7 +34,10 @@ c_no_sse: HandmadeMath.c test_impl
 			-lm \
 		&& $(CC) -ohmm_test_c_no_sse HandmadeMath.o hmm_test.o -lm
 
-cpp: HandmadeMath.cpp test_impl
+cpp: build_cpp
+	$(BUILD_DIR)/hmm_test_cpp
+
+build_cpp: HandmadeMath.cpp test_impl
 	@echo "\nCompiling in C++ mode"
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR) \
@@ -34,7 +45,10 @@ cpp: HandmadeMath.cpp test_impl
 			-DHANDMADE_MATH_CPP_MODE \
 			../HandmadeMath.cpp ../hmm_test.cpp
 
-cpp_no_sse: HandmadeMath.cpp test_impl
+cpp_no_sse: build_cpp_no_sse
+	$(BUILD_DIR)/hmm_test_cpp_no_sse
+
+build_cpp_no_sse: HandmadeMath.cpp test_impl
 	@echo "\nCompiling in C++ mode (no SSE)"
 	mkdir -p $(BUILD_DIR)
 	cd $(BUILD_DIR) \
@@ -43,3 +57,29 @@ cpp_no_sse: HandmadeMath.cpp test_impl
 			../HandmadeMath.cpp ../hmm_test.cpp
 
 test_impl: hmm_test.cpp hmm_test.c
+
+build_c_without_coverage: HandmadeMath.c test_impl
+	@echo "\nCompiling in C mode"
+	mkdir -p $(BUILD_DIR)
+	cd $(BUILD_DIR)\
+		&& $(CC) $(CPPFLAGS) $(CXXFLAGS) -std=c99 \
+			-DWITHOUT_COVERAGE \
+			-c ../HandmadeMath.c ../hmm_test.c \
+			-lm \
+		&& $(CC) -ohmm_test_c HandmadeMath.o hmm_test.o -lm
+
+build_cpp_without_coverage: HandmadeMath.cpp test_impl
+	@echo "\nCompiling in C++ mode (no SSE)"
+	mkdir -p $(BUILD_DIR)
+	cd $(BUILD_DIR) \
+		&& $(CXX) $(CPPFLAGS) $(CXXFLAGS) -ohmm_test_cpp_no_sse \
+			-DHANDMADE_MATH_CPP_MODE -DWITHOUT_COVERAGE \
+			../HandmadeMath.cpp ../hmm_test.cpp
+
+build_cpp_different_prefix: HandmadeMath.cpp
+	@echo "\nCompiling C++ with different prefix"
+	mkdir -p $(BUILD_DIR)
+	cd $(BUILD_DIR) \
+		&& $(CXX) $(CPPFLAGS) $(CXXFLAGS) -ohmm_test_cpp_different_prefix \
+			-DHANDMADE_MATH_CPP_MODE -DDIFFERENT_PREFIX \
+			../HandmadeMathDifferentPrefix.cpp

test/README.md

@@ -4,8 +4,13 @@ You can compile and run the tests yourself by running:
 
 ```
 make
-build/hmm_test_c
+```
-build/hmm_test_c_no_sse
+
-build/hmm_test_cpp
+To run a specific test configuration, run one of:
-build/hmm_test_cpp_no_sse
+
+```
+make c
+make c_no_sse
+make cpp
+make cpp_no_sse
 ```

test/categories/Equality.h

@@ -15,6 +15,9 @@ TEST(Equality, Vec2)
 
     EXPECT_TRUE(a == b);
     EXPECT_FALSE(a == c);
+
+    EXPECT_FALSE(a != b);
+    EXPECT_TRUE(a != c);
 #endif
 }
 
@@ -33,6 +36,9 @@ TEST(Equality, Vec3)
 
     EXPECT_TRUE(a == b);
     EXPECT_FALSE(a == c);
+
+    EXPECT_FALSE(a != b);
+    EXPECT_TRUE(a != c);
 #endif
 }
 
@@ -51,5 +57,8 @@ TEST(Equality, Vec4)
 
     EXPECT_TRUE(a == b);
     EXPECT_FALSE(a == c);
+
+    EXPECT_FALSE(a != b);
+    EXPECT_TRUE(a != c);
 #endif
 }

test/categories/Initialization.h

@@ -6,7 +6,7 @@ TEST(Initialization, Vectors)
     // Test vec2
     //
     hmm_vec2 v2 = HMM_Vec2(1.0f, 2.0f);
-    hmm_vec2 v2i = HMM_Vec2(1, 2);
+    hmm_vec2 v2i = HMM_Vec2i(1, 2);
 
     EXPECT_FLOAT_EQ(v2.X, 1.0f);
     EXPECT_FLOAT_EQ(v2.Y, 2.0f);

test/categories/MatrixOps.h

@@ -1,154 +0,0 @@
-#include "../HandmadeTest.h"
-
-void printQuat(hmm_quaternion quat) {
-    printf("\n%f %f %f %f", quat.X, quat.Y, quat.Z, quat.W);
-}
-
-TEST(MatrixOps, Transpose)
-{
-    hmm_mat4 m4 = HMM_Mat4(); // will have 1 - 16
-
-    // Fill the matrix
-    int Counter = 1;
-    for (int Column = 0; Column < 4; ++Column)
-    {
-        for (int Row = 0; Row < 4; ++Row)
-        {
-            m4.Elements[Column][Row] = Counter;
-            ++Counter;
-        }
-    }
-
-    // Test the matrix
-    hmm_mat4 result = HMM_Transpose(m4);
-    EXPECT_FLOAT_EQ(result.Elements[0][0], 1.0f);
-    EXPECT_FLOAT_EQ(result.Elements[0][1], 5.0f);
-    EXPECT_FLOAT_EQ(result.Elements[0][2], 9.0f);
-    EXPECT_FLOAT_EQ(result.Elements[0][3], 13.0f);
-    EXPECT_FLOAT_EQ(result.Elements[1][0], 2.0f);
-    EXPECT_FLOAT_EQ(result.Elements[1][1], 6.0f);
-    EXPECT_FLOAT_EQ(result.Elements[1][2], 10.0f);
-    EXPECT_FLOAT_EQ(result.Elements[1][3], 14.0f);
-    EXPECT_FLOAT_EQ(result.Elements[2][0], 3.0f);
-    EXPECT_FLOAT_EQ(result.Elements[2][1], 7.0f);
-    EXPECT_FLOAT_EQ(result.Elements[2][2], 11.0f);
-    EXPECT_FLOAT_EQ(result.Elements[2][3], 15.0f);
-    EXPECT_FLOAT_EQ(result.Elements[3][0], 4.0f);
-    EXPECT_FLOAT_EQ(result.Elements[3][1], 8.0f);
-    EXPECT_FLOAT_EQ(result.Elements[3][2], 12.0f);
-    EXPECT_FLOAT_EQ(result.Elements[3][3], 16.0f);
-}
-
-TEST(MatrixOps, ToQuaternion)
-{
-    { // Test 90 degree rotation about X axis
-        hmm_mat4 rot = {
-            1.0f, 0.0f, 0.0f, 0.0f, // first column (X)
-            0.0f, 0.0f, 1.0f, 0.0f, // second column (Y)
-            0.0f, -1.0f, 0.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(1.0f, 0.0f, 0.0f), HMM_ToRadians(90.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-
-    { // Test 90 degree rotation about Y axis
-        hmm_mat4 rot = {
-            0.0f, 0.0f, -1.0f, 0.0f, // first column (X)
-            0.0f, 1.0f, 0.0f, 0.0f, // second column (Y)
-            1.0f, 0.0f, 0.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 1.0f, 0.0f), HMM_ToRadians(90.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-
-    { // Test 90 degree rotation about Z axis
-        hmm_mat4 rot = {
-            0.0f, 1.0f, 0.0f, 0.0f, // first column (X)
-            -1.0f, 0.0f, 0.0f, 0.0f, // second column (Y)
-            0.0f, 0.0f, 1.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 0.0f, 1.0f), HMM_ToRadians(90.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-
-    { // Test 180 degree rotation about X axis
-        hmm_mat4 rot = {
-            1.0f, 0.0f, 0.0f, 0.0f, // first column (X)
-            0.0f, -1.0f, 1.0f, 0.0f, // second column (Y)
-            0.0f, 0.0f, -1.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(1.0f, 0.0f, 0.0f), HMM_ToRadians(180.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        printQuat(expected);
-        printQuat(actualResult);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-
-    { // Test 180 degree rotation about Y axis
-        hmm_mat4 rot = {
-            -1.0f, 0.0f, 0.0f, 0.0f, // first column (X)
-            0.0f, 1.0f, 1.0f, 0.0f, // second column (Y)
-            0.0f, 0.0f, -1.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 1.0f, 0.0f), HMM_ToRadians(180.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        printQuat(expected);
-        printQuat(actualResult);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-
-    { // Test 180 degree rotation about Z axis
-        hmm_mat4 rot = {
-            -1.0f, 0.0f, 0.0f, 0.0f, // first column (X)
-            0.0f, -1.0f, 1.0f, 0.0f, // second column (Y)
-            0.0f, 0.0f, 1.0f, 0.0f, // third column (Z)
-            0.0f, 0.0f, 0.0f, 0.0f
-        };
-
-        hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 0.0f, 1.0f), HMM_ToRadians(180.0f));
-        hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rot);
-
-        printQuat(expected);
-        printQuat(actualResult);
-
-        EXPECT_FLOAT_EQ(actualResult.X, expected.X);
-        EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
-        EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
-        EXPECT_FLOAT_EQ(actualResult.W, expected.W);
-    }
-}

test/categories/Projection.h

@@ -20,16 +20,16 @@ TEST(Projection, Perspective)
     {
         hmm_vec3 original = HMM_Vec3(5.0f, 5.0f, -15.0f);
         hmm_vec4 projected = HMM_MultiplyMat4ByVec4(projection, HMM_Vec4v(original, 1));
-        EXPECT_FLOAT_EQ(projected.X, 5.0f);
+        EXPECT_FLOAT_EQ(projected.X, 2.5f);
-        EXPECT_FLOAT_EQ(projected.Y, 10.0f);
+        EXPECT_FLOAT_EQ(projected.Y, 5.0f);
         EXPECT_FLOAT_EQ(projected.Z, 15.0f);
         EXPECT_FLOAT_EQ(projected.W, 15.0f);
     }
     {
         hmm_vec3 original = HMM_Vec3(5.0f, 5.0f, -5.0f);
         hmm_vec4 projected = HMM_MultiplyMat4ByVec4(projection, HMM_Vec4v(original, 1));
-        EXPECT_FLOAT_EQ(projected.X, 5.0f);
+        EXPECT_FLOAT_EQ(projected.X, 2.5f);
-        EXPECT_FLOAT_EQ(projected.Y, 10.0f);
+        EXPECT_FLOAT_EQ(projected.Y, 5.0f);
         EXPECT_FLOAT_EQ(projected.Z, -5.0f);
         EXPECT_FLOAT_EQ(projected.W, 5.0f);
     }

test/categories/QuaternionOps.h

@@ -76,39 +76,10 @@ TEST(QuaternionOps, Slerp)
     EXPECT_FLOAT_EQ(result.W, 0.86602540f);
 }
 
-TEST(QuaternionOps, ToMat4)
+TEST(QuaternionOps, QuatToMat4)
 {
     const float abs_error = 0.0001f;
 
-    {
-        // Identity quaternion
-        hmm_quaternion rot = HMM_Quaternion(0.0f, 0.0f, 0.0f, 1.0f);
-
-        hmm_mat4 result = HMM_QuaternionToMat4(rot);
-
-        EXPECT_NEAR(result.Elements[0][0], 1.0f, abs_error);
-        EXPECT_NEAR(result.Elements[0][1], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[0][2], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[0][3], 0.0f, abs_error);
-
-        EXPECT_NEAR(result.Elements[1][0], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[1][1], 1.0f, abs_error);
-        EXPECT_NEAR(result.Elements[1][2], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[1][3], 0.0f, abs_error);
-
-        EXPECT_NEAR(result.Elements[2][0], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[2][1], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[2][2], 1.0f, abs_error);
-        EXPECT_NEAR(result.Elements[2][3], 0.0f, abs_error);
-
-        EXPECT_NEAR(result.Elements[3][0], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[3][1], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[3][2], 0.0f, abs_error);
-        EXPECT_NEAR(result.Elements[3][3], 1.0f, abs_error);
-    }
-
-    {
-        // Straightforward 90 degree rotation
     hmm_quaternion rot = HMM_Quaternion(0.707107f, 0.0f, 0.0f, 0.707107f);
 
     hmm_mat4 result = HMM_QuaternionToMat4(rot);
@@ -133,6 +104,66 @@ TEST(QuaternionOps, ToMat4)
     EXPECT_NEAR(result.Elements[3][2], 0.0f, abs_error);
     EXPECT_NEAR(result.Elements[3][3], 1.0f, abs_error);
 }
+
+TEST(QuaternionOps, Mat4ToQuat)
+{
+    const float abs_error = 0.0001f;
+
+    // Rotate 90 degrees on the X axis
+    {
+        hmm_mat4 m = HMM_Rotate(90, HMM_Vec3(1, 0, 0));
+        hmm_quaternion result = HMM_Mat4ToQuaternion(m);
+
+        float cosf = 0.707107f; // cos(90/2 degrees)
+        float sinf = 0.707107f; // sin(90/2 degrees)
+
+        EXPECT_NEAR(result.X, sinf, abs_error);
+        EXPECT_NEAR(result.Y, 0.0f, abs_error);
+        EXPECT_NEAR(result.Z, 0.0f, abs_error);
+        EXPECT_NEAR(result.W, cosf, abs_error);
+    }
+
+    // Rotate 90 degrees on the Y axis (axis not normalized, just for fun)
+    {
+        hmm_mat4 m = HMM_Rotate(90, HMM_Vec3(0, 2, 0));
+        hmm_quaternion result = HMM_Mat4ToQuaternion(m);
+
+        float cosf = 0.707107f; // cos(90/2 degrees)
+        float sinf = 0.707107f; // sin(90/2 degrees)
+
+        EXPECT_NEAR(result.X, 0.0f, abs_error);
+        EXPECT_NEAR(result.Y, sinf, abs_error);
+        EXPECT_NEAR(result.Z, 0.0f, abs_error);
+        EXPECT_NEAR(result.W, cosf, abs_error);
+    }
+
+    // Rotate 90 degrees on the Z axis
+    {
+        hmm_mat4 m = HMM_Rotate(90, HMM_Vec3(0, 0, 1));
+        hmm_quaternion result = HMM_Mat4ToQuaternion(m);
+
+        float cosf = 0.707107f; // cos(90/2 degrees)
+        float sinf = 0.707107f; // sin(90/2 degrees)
+
+        EXPECT_NEAR(result.X, 0.0f, abs_error);
+        EXPECT_NEAR(result.Y, 0.0f, abs_error);
+        EXPECT_NEAR(result.Z, sinf, abs_error);
+        EXPECT_NEAR(result.W, cosf, abs_error);
+    }
+
+    // Rotate 45 degrees on the X axis (this hits case 4)
+    {
+        hmm_mat4 m = HMM_Rotate(45, HMM_Vec3(1, 0, 0));
+        hmm_quaternion result = HMM_Mat4ToQuaternion(m);
+
+        float cosf = 0.9238795325f; // cos(90/2 degrees)
+        float sinf = 0.3826834324f; // sin(90/2 degrees)
+
+        EXPECT_NEAR(result.X, sinf, abs_error);
+        EXPECT_NEAR(result.Y, 0.0f, abs_error);
+        EXPECT_NEAR(result.Z, 0.0f, abs_error);
+        EXPECT_NEAR(result.W, cosf, abs_error);
+    }
 }
 
 TEST(QuaternionOps, FromAxisAngle)

test/categories/SSE.h

@@ -8,10 +8,10 @@ TEST(SSE, LinearCombine)
     hmm_mat4 MatrixTwo = HMM_Mat4d(4.0f);
     hmm_mat4 Result;
 
-    Result.Rows[0] = HMM_LinearCombineSSE(MatrixOne.Rows[0], MatrixTwo);
+    Result.Columns[0] = HMM_LinearCombineSSE(MatrixOne.Columns[0], MatrixTwo);
-    Result.Rows[1] = HMM_LinearCombineSSE(MatrixOne.Rows[1], MatrixTwo);
+    Result.Columns[1] = HMM_LinearCombineSSE(MatrixOne.Columns[1], MatrixTwo);
-    Result.Rows[2] = HMM_LinearCombineSSE(MatrixOne.Rows[2], MatrixTwo);
+    Result.Columns[2] = HMM_LinearCombineSSE(MatrixOne.Columns[2], MatrixTwo);
-    Result.Rows[3] = HMM_LinearCombineSSE(MatrixOne.Rows[3], MatrixTwo);
+    Result.Columns[3] = HMM_LinearCombineSSE(MatrixOne.Columns[3], MatrixTwo);
 
     {
         EXPECT_FLOAT_EQ(Result.Elements[0][0], 8.0f);
@@ -24,13 +24,11 @@ TEST(SSE, LinearCombine)
         EXPECT_FLOAT_EQ(Result.Elements[1][2], 0.0f);
         EXPECT_FLOAT_EQ(Result.Elements[1][3], 0.0f);
 
-                        
         EXPECT_FLOAT_EQ(Result.Elements[2][0], 0.0f);
         EXPECT_FLOAT_EQ(Result.Elements[2][1], 0.0f);
         EXPECT_FLOAT_EQ(Result.Elements[2][2], 8.0f);
         EXPECT_FLOAT_EQ(Result.Elements[2][3], 0.0f);
 
-        
         EXPECT_FLOAT_EQ(Result.Elements[3][0], 0.0f);
         EXPECT_FLOAT_EQ(Result.Elements[3][1], 0.0f);
         EXPECT_FLOAT_EQ(Result.Elements[3][2], 0.0f);

test/categories/ScalarMath.h

@@ -24,6 +24,14 @@ TEST(ScalarMath, Trigonometry)
     EXPECT_NEAR(HMM_TanF(HMM_PI32), 0.0f, trigAbsError);
     EXPECT_NEAR(HMM_TanF(-HMM_PI32 / 4), -1.0f, trigAbsError);
 
+    EXPECT_NEAR(HMM_ATanF(0.0f), 0.0f, trigAbsError);
+    EXPECT_NEAR(HMM_ATanF(HMM_PI32), 1.2626272557f, trigAbsError);
+    EXPECT_NEAR(HMM_ATanF(-HMM_PI32), -1.2626272557f, trigAbsError);
+
+    EXPECT_NEAR(HMM_ATan2F(0.0f, 1.0f), 0.0f, trigAbsError);
+    EXPECT_NEAR(HMM_ATan2F(1.0f, 1.0f), HMM_PI32 / 4.0f, trigAbsError);
+    EXPECT_NEAR(HMM_ATan2F(1.0f, 0.0f), HMM_PI32 / 2.0f, trigAbsError);
+
     // This isn't the most rigorous because we're really just sanity-
     // checking that things work by default.
 }
@@ -35,6 +43,18 @@ TEST(ScalarMath, ToRadians)
     EXPECT_FLOAT_EQ(HMM_ToRadians(-180.0f), -HMM_PI32);
 }
 
+TEST(ScalarMath, ExpF)
+{
+    EXPECT_NEAR(HMM_ExpF(0.0f), 1.0f, 0.0001f);
+    EXPECT_NEAR(HMM_ExpF(1.0f), 2.7182818285f, 0.0001f);
+}
+
+TEST(ScalarMath, LogF)
+{
+    EXPECT_NEAR(HMM_LogF(1.0f), 0.0f, 0.0001f);
+    EXPECT_NEAR(HMM_LogF(2.7182818285f), 1.0f, 0.0001f);
+}
+
 TEST(ScalarMath, SquareRoot)
 {
     EXPECT_FLOAT_EQ(HMM_SquareRootF(16.0f), 4.0f);
@@ -54,9 +74,9 @@ TEST(ScalarMath, Power)
 
 TEST(ScalarMath, PowerF)
 {
-    EXPECT_FLOAT_EQ(HMM_PowerF(2.0f, 0), 1.0f);
+    EXPECT_FLOAT_EQ(HMM_PowerF(2.0f, 0.0f), 1.0f);
-    EXPECT_NEAR(HMM_PowerF(2.0f, 4.1), 17.148376f, 0.0001f);
+    EXPECT_NEAR(HMM_PowerF(2.0f, 4.1f), 17.148376f, 0.0001f);
-    EXPECT_NEAR(HMM_PowerF(2.0f, -2.5), 0.176777f, 0.0001f);
+    EXPECT_NEAR(HMM_PowerF(2.0f, -2.5f), 0.176777f, 0.0001f);
 }
 
 TEST(ScalarMath, Lerp)

test/categories/VectorOps.h

@@ -134,10 +134,108 @@ TEST(VectorOps, NormalizeZero)
 #endif
 }
 
+TEST(VectorOps, FastNormalize)
+{
+    hmm_vec2 v2 = HMM_Vec2(1.0f, -2.0f);
+    hmm_vec3 v3 = HMM_Vec3(1.0f, -2.0f, 3.0f);
+    hmm_vec4 v4 = HMM_Vec4(1.0f, -2.0f, 3.0f, -1.0f);
+
+    {
+        hmm_vec2 result = HMM_FastNormalizeVec2(v2);
+        EXPECT_NEAR(HMM_LengthVec2(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+    }
+    {
+        hmm_vec3 result = HMM_FastNormalizeVec3(v3);
+        EXPECT_NEAR(HMM_LengthVec3(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+        EXPECT_GT(result.Z, 0.0f);
+    }
+    {
+        hmm_vec4 result = HMM_FastNormalizeVec4(v4);
+        EXPECT_NEAR(HMM_LengthVec4(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+        EXPECT_GT(result.Z, 0.0f);
+        EXPECT_LT(result.W, 0.0f);
+    }
+
+#ifdef __cplusplus
+    {
+        hmm_vec2 result = HMM_FastNormalize(v2);
+        EXPECT_NEAR(HMM_LengthVec2(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+    }
+    {
+        hmm_vec3 result = HMM_FastNormalize(v3);
+        EXPECT_NEAR(HMM_LengthVec3(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+        EXPECT_GT(result.Z, 0.0f);
+    }
+    {
+        hmm_vec4 result = HMM_FastNormalize(v4);
+        EXPECT_NEAR(HMM_LengthVec4(result), 1.0f, 0.001f);
+        EXPECT_GT(result.X, 0.0f);
+        EXPECT_LT(result.Y, 0.0f);
+        EXPECT_GT(result.Z, 0.0f);
+        EXPECT_LT(result.W, 0.0f);
+    }
+#endif
+}
+
+TEST(VectorOps, FastNormalizeZero)
+{
+    hmm_vec2 v2 = HMM_Vec2(0.0f, 0.0f);
+    hmm_vec3 v3 = HMM_Vec3(0.0f, 0.0f, 0.0f);
+    hmm_vec4 v4 = HMM_Vec4(0.0f, 0.0f, 0.0f, 0.0f);
+
+    {
+        hmm_vec2 result = HMM_FastNormalizeVec2(v2);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+    }
+    {
+        hmm_vec3 result = HMM_FastNormalizeVec3(v3);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+        EXPECT_FLOAT_EQ(result.Z, 0.0f);
+    }
+    {
+        hmm_vec4 result = HMM_FastNormalizeVec4(v4);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+        EXPECT_FLOAT_EQ(result.Z, 0.0f);
+        EXPECT_FLOAT_EQ(result.W, 0.0f);
+    }
+
+#ifdef __cplusplus
+    {
+        hmm_vec2 result = HMM_FastNormalize(v2);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+    }
+    {
+        hmm_vec3 result = HMM_FastNormalize(v3);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+        EXPECT_FLOAT_EQ(result.Z, 0.0f);
+    }
+    {
+        hmm_vec4 result = HMM_FastNormalize(v4);
+        EXPECT_FLOAT_EQ(result.X, 0.0f);
+        EXPECT_FLOAT_EQ(result.Y, 0.0f);
+        EXPECT_FLOAT_EQ(result.Z, 0.0f);
+        EXPECT_FLOAT_EQ(result.W, 0.0f);
+    }
+#endif
+}
+
 TEST(VectorOps, Cross)
 {
-    {
-        // Normal cross
     hmm_vec3 v1 = HMM_Vec3(1.0f, 2.0f, 3.0f);
     hmm_vec3 v2 = HMM_Vec3(4.0f, 5.0f, 6.0f);
 
@@ -148,18 +246,6 @@ TEST(VectorOps, Cross)
     EXPECT_FLOAT_EQ(result.Z, -3.0f);
 }
 
-    {
-        // Vector with itself
-        hmm_vec3 v = HMM_Vec3(1.0f, 2.0f, 3.0f);
-
-        hmm_vec3 result = HMM_Cross(v, v);
-
-        EXPECT_FLOAT_EQ(result.X, 0.0f);
-        EXPECT_FLOAT_EQ(result.Y, 0.0f);
-        EXPECT_FLOAT_EQ(result.Z, 0.0f);
-    }
-}
-
 TEST(VectorOps, DotVec2)
 {
     hmm_vec2 v1 = HMM_Vec2(1.0f, 2.0f);
@@ -192,3 +278,43 @@ TEST(VectorOps, DotVec4)
     EXPECT_FLOAT_EQ(HMM_Dot(v1, v2), 70.0f);
 #endif
 }
+
+
+/*
+ * MatrixOps tests
+ */
+
+TEST(MatrixOps, Transpose)
+{
+    hmm_mat4 m4 = HMM_Mat4(); // will have 1 - 16
+
+    // Fill the matrix
+    int Counter = 1;
+    for (int Column = 0; Column < 4; ++Column)
+    {
+        for (int Row = 0; Row < 4; ++Row)
+        {
+            m4.Elements[Column][Row] = Counter;
+            ++Counter;
+        }
+    }
+
+    // Test the matrix
+    hmm_mat4 result = HMM_Transpose(m4);
+    EXPECT_FLOAT_EQ(result.Elements[0][0], 1.0f);
+    EXPECT_FLOAT_EQ(result.Elements[0][1], 5.0f);
+    EXPECT_FLOAT_EQ(result.Elements[0][2], 9.0f);
+    EXPECT_FLOAT_EQ(result.Elements[0][3], 13.0f);
+    EXPECT_FLOAT_EQ(result.Elements[1][0], 2.0f);
+    EXPECT_FLOAT_EQ(result.Elements[1][1], 6.0f);
+    EXPECT_FLOAT_EQ(result.Elements[1][2], 10.0f);
+    EXPECT_FLOAT_EQ(result.Elements[1][3], 14.0f);
+    EXPECT_FLOAT_EQ(result.Elements[2][0], 3.0f);
+    EXPECT_FLOAT_EQ(result.Elements[2][1], 7.0f);
+    EXPECT_FLOAT_EQ(result.Elements[2][2], 11.0f);
+    EXPECT_FLOAT_EQ(result.Elements[2][3], 15.0f);
+    EXPECT_FLOAT_EQ(result.Elements[3][0], 4.0f);
+    EXPECT_FLOAT_EQ(result.Elements[3][1], 8.0f);
+    EXPECT_FLOAT_EQ(result.Elements[3][2], 12.0f);
+    EXPECT_FLOAT_EQ(result.Elements[3][3], 16.0f);
+}

test/hmm_test.c

@@ -1,7 +1,9 @@
-#include "HandmadeTest.h"
 #include "hmm_test.h"
 
 int main()
 {
-    return hmt_run_all_tests();
+    int tests_failed = hmt_run_all_tests();
+    int coverage_failed = hmt_check_all_coverage();
+
+    return tests_failed || coverage_failed;
 }

test/hmm_test.h

@@ -1,18 +1,20 @@
 #include <float.h>
 
+#define HANDMADE_TEST_IMPLEMENTATION
 #include "HandmadeTest.h"
+
+#undef COVERAGE // Make sure we don't double-define initializers from the header part
 #include "../HandmadeMath.h"
 
+#include "categories/ScalarMath.h"
+#include "categories/Initialization.h"
+#include "categories/VectorOps.h"
+#include "categories/QuaternionOps.h"
 #include "categories/Addition.h"
+#include "categories/Subtraction.h"
+#include "categories/Multiplication.h"
 #include "categories/Division.h"
 #include "categories/Equality.h"
-#include "categories/Initialization.h"
-#include "categories/MatrixOps.h"
-#include "categories/Multiplication.h"
 #include "categories/Projection.h"
-#include "categories/QuaternionOps.h"
-#include "categories/ScalarMath.h"
-#include "categories/SSE.h"
-#include "categories/Subtraction.h"
 #include "categories/Transformation.h"
-#include "categories/VectorOps.h"
+#include "categories/SSE.h"

test/test.bat

@@ -0,0 +1,27 @@
+@echo off
+
+if "%1%"=="travis" (
+    call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\Common7\Tools\VsDevCmd.bat" -host_arch=amd64 -arch=amd64
+) else (
+    where /q cl
+    if ERRORLEVEL 1 (
+        for /f "delims=" %%a in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -find VC\Auxiliary\Build\vcvarsall.bat') do (%%a x64)
+    )
+)
+
+if not exist "build" mkdir build
+pushd build
+
+cl /Fehmm_test_c.exe ..\HandmadeMath.c ..\hmm_test.c
+hmm_test_c
+
+cl /Fehmm_test_c_no_sse.exe /DHANDMADE_MATH_NO_SSE ..\HandmadeMath.c ..\hmm_test.c
+hmm_test_c_no_sse
+
+cl /Fehmm_test_cpp.exe ..\HandmadeMath.cpp ..\hmm_test.cpp
+hmm_test_cpp
+
+cl /Fehmm_test_cpp_no_sse.exe /DHANDMADE_MATH_NO_SSE ..\HandmadeMath.cpp ..\hmm_test.cpp
+hmm_test_cpp_no_sse
+
+popd