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LookingGlass/client/renderers/EGL/CMakeLists.txt
Geoffrey McRae e5c4fe68dc
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[client] egl: cache renderer GL state
Track context-local GL bindings to avoid redundant program, framebuffer,
buffer, texture, sampler, viewport, blend, and scissor state changes.

Invalidate the cache across context switches, ImGui rendering, and
shared object changes. Preserve CPU-backed texture upload correctness by
explicitly clearing pixel unpack buffer bindings where required.

This reduces hot-path driver overhead without adding waits or GPU
synchronization.
2026-07-17 22:38:46 +10:00

120 lines
2.7 KiB
CMake

cmake_minimum_required(VERSION 3.10)
project(renderer_EGL LANGUAGES C CXX)
find_package(PkgConfig)
pkg_check_modules(RENDERER_EGL REQUIRED IMPORTED_TARGET
egl
gl
)
pkg_check_modules(RENDERER_EGL_OPT IMPORTED_TARGET
wayland-egl
)
find_program(AWK NAMES gawk mawk original-awk awk)
if(AWK MATCHES ".+-NOTFOUND")
message(FATAL_ERROR "FATAL: some known version of awk couldn't be found (${AWK}).")
else()
message(STATUS "Using awk: ${AWK}")
endif()
include(MakeObject)
function(build_shaders header_dir)
file(GLOB headers "${header_dir}/*.h")
set(EGL_SHADER_PROCESSED)
foreach(shader ${ARGN})
set(out_f "${CMAKE_CURRENT_BINARY_DIR}/${shader}")
add_custom_command(OUTPUT "${out_f}"
COMMAND "${AWK}" -f "${CMAKE_CURRENT_SOURCE_DIR}/glsl.include.awk"
"${CMAKE_CURRENT_SOURCE_DIR}/${shader}" > "${out_f}"
MAIN_DEPENDENCY "${CMAKE_CURRENT_SOURCE_DIR}/${shader}"
DEPENDS ${headers}
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/shader"
COMMENT "Preprocessing shader ${shader}"
VERBATIM
)
endforeach()
set(CMAKE_CURRENT_SOURCE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
make_object(
EGL_SHADER
${ARGN}
)
set(EGL_SHADER_OBJS "${EGL_SHADER_OBJS}" PARENT_SCOPE)
set(EGL_SHADER_INCS "${EGL_SHADER_INCS}" PARENT_SCOPE)
endfunction()
build_shaders(
shader
shader/desktop.vert
shader/desktop_rgb.frag
shader/cursor.vert
shader/cursor_rgb.frag
shader/cursor_mono.frag
shader/damage.vert
shader/damage.frag
shader/basic.vert
shader/convert_24bit.frag
shader/ffx_cas.frag
shader/ffx_fsr1_easu.frag
shader/ffx_fsr1_rcas.frag
shader/downscale.frag
shader/downscale_lanczos2.frag
shader/downscale_linear.frag
)
make_defines(
"${CMAKE_CURRENT_SOURCE_DIR}/shader/desktop_rgb.frag"
"${CMAKE_CURRENT_BINARY_DIR}/shader/desktop_rgb.def.h"
)
add_library(renderer_EGL STATIC
egl.c
egldebug.c
state.c
shader.c
texture_util.c
texture.c
texture_buffer.c
texture_framebuffer.c
texture_dmabuf.c
model.c
desktop.c
desktop_rects.c
cursor.c
damage.c
framebuffer.c
effect.c
postprocess.c
ffx.c
filter_24bit.c
filter_ffx_cas.c
filter_ffx_fsr1.c
filter_downscale.c
${EGL_SHADER_OBJS}
"${CMAKE_CURRENT_BINARY_DIR}/shader/desktop_rgb.def.h"
${PROJECT_TOP}/repos/cimgui/imgui/backends/imgui_impl_opengl3.cpp
)
target_compile_definitions(renderer_EGL PRIVATE CIMGUI_DEFINE_ENUMS_AND_STRUCTS=1 IMGUI_IMPL_OPENGL_ES3)
target_link_libraries(renderer_EGL
PkgConfig::RENDERER_EGL
lg_common
cimgui
)
if(RENDERER_EGL_OPT_FOUND)
target_link_libraries(renderer_EGL
PkgConfig::RENDERER_EGL_OPT
)
endif()
target_include_directories(renderer_EGL
PRIVATE
src
${EGL_SHADER_INCS}
)