Initial commit

CMakeLists.txt

@@ -0,0 +1,58 @@
+project(bc7enc)
+
+cmake_minimum_required(VERSION 2.8)
+option(BUILD_X64 "build 64-bit" TRUE)
+
+message("Initial BUILD_X64=${BUILD_X64}")
+message("Initial CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}")
+
+if( NOT CMAKE_BUILD_TYPE )
+  set( CMAKE_BUILD_TYPE Release )
+endif( NOT CMAKE_BUILD_TYPE )
+
+message( ${PROJECT_NAME} " build type: " ${CMAKE_BUILD_TYPE} )
+
+if (BUILD_X64)
+	message("Building 64-bit")
+else()
+	message("Building 32-bit")
+endif(BUILD_X64)
+
+if (NOT MSVC)
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g")
+
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+set(CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+endif()
+
+# -fno-strict-aliasing shouldn't be necessary, it's here because that is what MSVC uses by default and that's what I've tested with the most.
+if (NOT MSVC)
+	set(GCC_COMPILE_FLAGS "-fno-strict-aliasing -Wall -Wextra")
+	if (NOT BUILD_X64)
+		set(GCC_COMPILE_FLAGS "${GCC_COMPILE_FLAGS} -m32")
+	endif()
+endif()	
+
+set(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS} ${GCC_COMPILE_FLAGS}")
+set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} ${GCC_COMPILE_FLAGS}")
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${GCC_COMPILE_FLAGS} -D_DEBUG")
+
+set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${GCC_COMPILE_FLAGS}")
+set(CMAKE_CXX_FLAGS_RELEASE  "${CMAKE_CXX_FLAGS_RELEASE} ${GCC_COMPILE_FLAGS}")
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${GCC_COMPILE_FLAGS} -D_DEBUG")
+
+set (BC7ENC_SRC_LIST ${COMMON_SRC_LIST}
+	bc7enc.cpp
+	lodepng.cpp
+	bc7decomp.c
+	bc7enc16.c
+	)
+
+add_executable(bc7enc ${BC7ENC_SRC_LIST})
+
+if (NOT MSVC)
+	target_link_libraries(bc7enc m)
+endif()
+
+

LICENSE

@@ -0,0 +1,76 @@
+bc7enc16.c/.h is available under 2 licenses -- choose whichever you prefer:
+
+ALTERNATIVE A for bc7enc.c/.h - MIT License
+Copyright(c) 2018 Richard Geldreich, Jr.
+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 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 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B for bc7enc.c/.h - Public Domain(www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non - commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain.We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors.We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+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 THE
+AUTHORS 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.
+------------------------------------------------------------------------------
+
+bc7decomp.c/.h: Copyright (c) 2015 Harm Hanemaaijer <fgenfb@yahoo.com>
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+------------------------------------------------------------------------------
+
+LodePNG version 20161127
+
+Copyright (c) 2005-2016 Lode Vandevenne
+
+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.
+

README

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+bc7enc16 - Fast, single source file BC7/BPTC GPU texture encoder with perceptual colorspace metric support
+
+<work in progress - only tested under Windows with VS2015 so far>
+
+Supports modes 1 and 6. This is a strong opaque texture encoder, with basic
+support for alpha channels (using mode 6). If alpha is highly correlated
+compared to RGB, or it's relatively simple (think straightforward masks where
+lots of blocks are either all-transparent or all-opaque), it should work great.
+For complex alpha channels more modes (such as 4,5 or maybe 7) are necessary.
+
+