add the CPU backend

Author: jamriska

README.md

@@ -28,6 +28,7 @@ ebsynth -style <style.png> -guide <source.png> <target.png> -output <output.png>
 -pyramidlevels <number>
 -searchvoteiters <number>
 -patchmatchiters <number>
+-backend [cpu|cuda]
 ```
 
 ## Download
@@ -129,10 +130,6 @@ equalized to match the luminance of the source painting.
 
 --------------------------------------------------------------------------
 
-## Requirements
-
-`ebsynth` needs a CUDA-capable gpu in order to run. Besides CUDA, there are no other external dependencies. A cpu-only version that doesn't require CUDA will be released later.
-
 ## License
 
 The code is released into the public domain. You can do anything you want with it.

build-linux-cpu+cuda.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+nvcc -arch compute_30 src/ebsynth.cpp src/ebsynth_cpu.cpp src/ebsynth_cuda.cu -I"include" -DNDEBUG -D__CORRECT_ISO_CPP11_MATH_H_PROTO -O6 -std=c++11 -w -Xcompiler -fopenmp -o bin/ebsynth

build-linux-cpu_only.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+g++ src/ebsynth.cpp src/ebsynth_cpu.cpp src/ebsynth_nocuda.cpp -DNDEBUG -O6 -fopenmp -I"include" -std=c++11 -o bin/ebsynth

build-linux.sh

@@ -0,0 +1,14 @@
+@echo off
+setlocal ENABLEDELAYEDEXPANSION
+
+for %%V in (15,14,12,11) do if exist "!VS%%V0COMNTOOLS!" call "!VS%%V0COMNTOOLS!..\..\VC\vcvarsall.bat" x86 && goto compile
+
+:compile
+nvcc -m32 -arch compute_30 src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_cuda.cu -DNDEBUG -O6 -I "include" -o "bin\ebsynth.exe" -Xcompiler "/openmp /fp:fast" -Xlinker "/IMPLIB:dummy.lib" -w || goto error
+nvcc -m32 -arch compute_30 src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_cuda.cu -DNDEBUG -O6 -I "include" -o "bin\ebsynth.dll" -Xcompiler "/openmp /fp:fast" -Xlinker "/IMPLIB:lib\ebsynth.lib" -shared -DEBSYNTH_API=__declspec(dllexport) -w || goto error
+del dummy.lib;dummy.exp 2> NUL
+goto :EOF
+
+:error
+echo FAILED
+@%COMSPEC% /C exit 1 >nul

build-win32-cpu+cuda.bat

@@ -0,0 +1,14 @@
+@echo off
+setlocal ENABLEDELAYEDEXPANSION
+
+for %%V in (15,14,12,11) do if exist "!VS%%V0COMNTOOLS!" call "!VS%%V0COMNTOOLS!..\..\VC\vcvarsall.bat" x86 && goto compile
+
+:compile
+cl src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_nocuda.cpp /DNDEBUG /O2 /openmp /EHsc /nologo /I"include" /Fe"bin\ebsynth.exe" || goto error
+cl src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_nocuda.cpp /DNDEBUG /O2 /openmp /EHsc /nologo /I"include" /Fe"bin\ebsynth.dll" /DEBSYNTH_API="__declspec(dllexport)" /link /IMPLIB:"lib\ebsynth.lib" || goto error
+del ebsynth.obj;ebsynth_cpu.obj;ebsynth_nocuda.obj 2> NUL
+goto :EOF
+
+:error
+echo FAILED
+@%COMSPEC% /C exit 1 >nul

build-win32-cpu_only.bat

@@ -0,0 +1,14 @@
+@echo off
+setlocal ENABLEDELAYEDEXPANSION
+
+for %%V in (15,14,12,11) do if exist "!VS%%V0COMNTOOLS!" call "!VS%%V0COMNTOOLS!..\..\VC\vcvarsall.bat" amd64 && goto compile
+
+:compile
+nvcc -arch compute_30 src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_cuda.cu -DNDEBUG -O6 -I "include" -o "bin\ebsynth.exe" -Xcompiler "/openmp /fp:fast" -Xlinker "/IMPLIB:dummy.lib" -w || goto error
+nvcc -arch compute_30 src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_cuda.cu -DNDEBUG -O6 -I "include" -o "bin\ebsynth.dll" -Xcompiler "/openmp /fp:fast" -Xlinker "/IMPLIB:lib\ebsynth.lib" -shared -DEBSYNTH_API=__declspec(dllexport) -w || goto error
+del dummy.lib;dummy.exp 2> NUL
+goto :EOF
+
+:error
+echo FAILED
+@%COMSPEC% /C exit 1 >nul

build-win32.bat

@@ -0,0 +1,14 @@
+@echo off
+setlocal ENABLEDELAYEDEXPANSION
+
+for %%V in (15,14,12,11) do if exist "!VS%%V0COMNTOOLS!" call "!VS%%V0COMNTOOLS!..\..\VC\vcvarsall.bat" amd64 && goto compile
+
+:compile
+cl src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_nocuda.cpp /DNDEBUG /O2 /openmp /EHsc /nologo /I"include" /Fe"bin\ebsynth.exe" || goto error
+cl src\ebsynth.cpp src\ebsynth_cpu.cpp src\ebsynth_nocuda.cpp /DNDEBUG /O2 /openmp /EHsc /nologo /I"include" /Fe"bin\ebsynth.dll" /DEBSYNTH_API="__declspec(dllexport)" /link /IMPLIB:"lib\ebsynth.lib" || goto error
+del ebsynth.obj;ebsynth_cpu.obj;ebsynth_nocuda.obj 2> NUL
+goto :EOF
+
+:error
+echo FAILED
+@%COMSPEC% /C exit 1 >nul