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effector/CMakeLists.txt
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SiandClaude Opus 5.5 ce3a422f6a Add eight effects that throw something chaotic into the chain
Slit shift, channel split, pixel sort, corruption, shatter, warp, bit
crush and feedback: tearing bands sideways, knocking the colour planes
out of register, sorting runs of pixels, damaging blocks the way a broken
stream does, breaking the picture into shards, pushing it along a noise
field, mangling its bytes and laying it over itself again and again.

All eight are pure transforms. None needs sources, so any of them can
lead a chain, and like blur they start from a crop of a random source
when they do and photographs are loaded. canvasFromSources holds that
start once for them.

Each draws its whole plan from the rng before touching a pixel, and
pixel sort hands every line a seed of its own, so the parallel work
never decides anything. The rotations in shatter and feedback take their
sine and cosine from a short series of plain multiplications rather than
libm, so a seed lands on the same pixels whatever the machine's maths
library makes of std::sin.

The tests hold every one of them to the same things -- a seed
reproduces it, it runs without sources and as a later stage, a sliver
of a canvas does not trip it, turned right down it leaves its input
alone -- plus a check of what each actually does, and the registry now
checks that no two effects declare the same param key.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-23 20:36:09 +02:00

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CMake

cmake_minimum_required(VERSION 3.20)
project(effector VERSION 0.1.0 LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
endif()
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG")
find_package(PkgConfig REQUIRED)
pkg_check_modules(GTKMM REQUIRED IMPORTED_TARGET gtkmm-4.0)
pkg_check_modules(GDKPIXBUF REQUIRED IMPORTED_TARGET gdk-pixbuf-2.0)
# Pango and Cairo draw the text effect's glyphs. Neither needs a display, so
# the core stays headless.
pkg_check_modules(PANGOCAIRO REQUIRED IMPORTED_TARGET pangocairo)
find_package(Threads REQUIRED)
# --- core: effects and image handling, no GUI ---------------------------------
add_library(effector_core STATIC
src/core/canvas.cpp
src/core/chain.cpp
src/core/effect.cpp
src/core/image.cpp
src/core/params.cpp
src/core/project.cpp
src/core/registry.cpp
src/core/rng.cpp
src/core/style.cpp
src/effects/bitcrush.cpp
src/effects/blur.cpp
src/effects/channelsplit.cpp
src/effects/corrupt.cpp
src/effects/feedback.cpp
src/effects/grain.cpp
src/effects/monochrome.cpp
src/effects/overlay.cpp
src/effects/pixelsort.cpp
src/effects/scanlines.cpp
src/effects/shatter.cpp
src/effects/slitshift.cpp
src/effects/text.cpp
src/effects/tiles.cpp
src/effects/warp.cpp
)
target_include_directories(effector_core PUBLIC src)
# The core is GUI-free: it only needs gdk-pixbuf for decoding and encoding,
# so headless rendering works without a display.
target_link_libraries(effector_core PUBLIC PkgConfig::GDKPIXBUF PkgConfig::PANGOCAIRO Threads::Threads)
target_compile_options(effector_core PRIVATE -Wall -Wextra -Wpedantic)
# --- application --------------------------------------------------------------
add_executable(effector
src/main.cpp
src/cli/options.cpp
src/gui/app.cpp
src/gui/window.cpp
)
target_link_libraries(effector PRIVATE effector_core PkgConfig::GTKMM)
target_compile_options(effector PRIVATE -Wall -Wextra -Wpedantic)
install(TARGETS effector RUNTIME DESTINATION bin)
# --- tests --------------------------------------------------------------------
include(CTest)
if(BUILD_TESTING)
add_subdirectory(tests)
endif()