marfrit
0a99b16489
Wires QPU dispatch for cycles 3 (VP9 MC), 5 (AV1 CDEF), 8 (H.264
deblock) through the public API. These three kernels have recipe
substrate = CPU, but per Issue 003 the mixed-kernel helper value
is real — the dispatch path must exist so override-mode callers
can request QPU on the side.
Pattern mirrors dispatch_idct8_qpu (lazy pipeline + per-call SSBO
alloc + memcpy + dispatch + readback). Each kernel has its own
push-constant struct (mc_pc 3-field, cdef_pc 3-field, deblock_pc
2-field shared with lpf).
Notable bug caught + fixed in test_api_opportunistic_qpu: the
initial dispatch_mc_8h_qpu sized src_max using CPU-side reach
(src_off + 3 + 8 + 7*stride), but the QPU shader reads src[
src_off + row*stride + 0..14] for row=0..7. Last block had 3
uninitialized bytes → 99.8% match → 100% after fix.
After this commit, the public API surface fully covers cycles 1-8:
Cycle 1 (IDCT 8x8): CPU + QPU + AUTO bit-exact
Cycle 2 (LPF wd=4): CPU + QPU + AUTO bit-exact
Cycle 3 (MC 8h): CPU recipe; QPU override bit-exact
Cycle 4 (LPF wd=8): CPU + QPU + AUTO bit-exact
Cycle 5 (CDEF): CPU recipe; QPU override (untested in this
test — bench_v3d_cdef is the authoritative 3-way M1)
Cycle 6 (H.264 IDCT 4x4): CPU only (no QPU shader by recipe)
Cycle 7 (H.264 IDCT 8x8): CPU only
Cycle 8 (H.264 deblock luma-v): CPU recipe; QPU override bit-exact
Tests: test_api_opportunistic_qpu adds CPU-vs-QPU bit-exact
comparison for VP9 MC and H.264 deblock through the API.
test_api_idct, test_api_lpf, test_api_h264 still pass.
Per the locked Phase 8 architecture (project_phase8_architecture
memory): next session opens daedalus-v4l2 sibling repo with
Option B (kernel V4L2 shim + userspace daemon), Option γ (dlopen
FFmpeg parser).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
458 lines
16 KiB
CMake
458 lines
16 KiB
CMake
# daedalus-fourier — Phase 3 baseline + (later) Phase 6 implementation.
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#
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# Builds:
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# bench_neon_idct — NEON throughput baseline (Phase 3 M3) +
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# bit-exact correctness gate (Phase 1 M1).
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# bench_vulkan_dispatch — Vulkan compute dispatch-overhead baseline (M5).
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#
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# Linkage note: bench_neon_idct statically links the vendored
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# FFmpeg n7.1.3 NEON snapshot (LGPL-2.1+); see
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# external/ffmpeg-snapshot/PROVENANCE.md.
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cmake_minimum_required(VERSION 3.20)
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project(daedalus-fourier C ASM)
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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if (NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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if (NOT CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
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message(FATAL_ERROR
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"daedalus-fourier targets aarch64 (Pi 5 / BCM2712). "
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"Cross-compile not yet wired.")
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endif()
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add_compile_options(-Wall -Wextra -Wno-unused-parameter)
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# ---- Vendored FFmpeg snapshot (LGPL-2.1+) -----------------------------------
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set(FFSNAP ${CMAKE_SOURCE_DIR}/external/ffmpeg-snapshot)
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# Assembly preamble (config.h shim + FFmpeg's asm helpers) used by the
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# vendored .S file. -I flags expose:
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# - FFSNAP/ so `#include "config.h"` finds our shim
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# - FFSNAP/libavcodec/aarch64/ so `#include "neon.S"` finds the helper
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# - FFSNAP/ so `#include "libavutil/aarch64/asm.S"`
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# resolves against the vendored copy
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set(FFASM_FLAGS
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-I${FFSNAP}
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-I${FFSNAP}/libavcodec/aarch64
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-I${FFSNAP}
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)
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# ---- Vendored dav1d snapshot (BSD-2-Clause) — cycle 5+ ----------------------
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set(DAV1DSNAP ${CMAKE_SOURCE_DIR}/external/dav1d-snapshot)
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# dav1d's asm preamble expects "src/arm/asm.S" and "cdef_tmpl.S" / "util.S"
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# (the latter two as bare basenames from within src/arm/64/). Include paths:
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set(DAV1D_ASM_FLAGS
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-I${DAV1DSNAP} # for config.h shim + src/arm/asm.S
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-I${DAV1DSNAP}/src/arm/64 # for util.S, cdef_tmpl.S
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)
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set(DAV1D_CDEF_ASM_SOURCES
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${DAV1DSNAP}/src/arm/64/cdef.S
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)
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set(DAV1D_CDEF_C_SOURCES
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${DAV1DSNAP}/src/tables_cdef_subset.c
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)
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set_source_files_properties(${DAV1D_CDEF_ASM_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${DAV1D_ASM_FLAGS}"
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LANGUAGE ASM)
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set(FFASM_SOURCES
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${FFSNAP}/libavcodec/aarch64/vp9itxfm_neon.S
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)
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# Cycle 6 — H.264 IDCT 4x4 + 8x8 NEON (vendored 2026-05-18).
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set(FFASM_H264IDCT_SOURCES
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${FFSNAP}/libavcodec/aarch64/h264idct_neon.S
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)
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set_source_files_properties(${FFASM_H264IDCT_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${FFASM_FLAGS}"
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LANGUAGE ASM)
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# Cycle 2 — VP9 loop filter NEON source (vendored 2026-05-18).
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set(FFASM_LPF_SOURCES
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${FFSNAP}/libavcodec/aarch64/vp9lpf_neon.S
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)
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set_source_files_properties(${FFASM_LPF_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${FFASM_FLAGS}"
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LANGUAGE ASM)
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# Cycle 3 — VP9 MC interpolation NEON source + filter coefficient table
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# (vendored 2026-05-18). The .c table provides ff_vp9_subpel_filters
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# symbol which vp9mc_neon.S references via movrel.
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set(FFASM_MC_SOURCES
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${FFSNAP}/libavcodec/aarch64/vp9mc_neon.S
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)
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set(FFC_MC_SOURCES
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${FFSNAP}/libavcodec/vp9_subpel_filters_table.c
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)
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set_source_files_properties(${FFASM_MC_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${FFASM_FLAGS}"
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LANGUAGE ASM)
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# Tell CMake/gas to preprocess .S sources.
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set_source_files_properties(${FFASM_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${FFASM_FLAGS}"
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LANGUAGE ASM)
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# ---- NEON baseline microbenches --------------------------------------------
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# Cycle 6 — H.264 IDCT 4x4 NEON M3 baseline bench.
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add_executable(bench_neon_h264idct4
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tests/bench_neon_h264idct4.c
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tests/h264_idct4_ref.c
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${FFASM_H264IDCT_SOURCES}
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)
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target_compile_options(bench_neon_h264idct4 PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 7 — H.264 IDCT 8x8 NEON M3 baseline bench.
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add_executable(bench_neon_h264idct8
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tests/bench_neon_h264idct8.c
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tests/h264_idct8_ref.c
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${FFASM_H264IDCT_SOURCES}
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)
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target_compile_options(bench_neon_h264idct8 PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 8 — H.264 luma vertical deblock NEON M3 baseline bench.
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set(FFASM_H264DSP_SOURCES
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${FFSNAP}/libavcodec/aarch64/h264dsp_neon.S
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)
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set_source_files_properties(${FFASM_H264DSP_SOURCES} PROPERTIES
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COMPILE_OPTIONS "${FFASM_FLAGS}"
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LANGUAGE ASM)
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add_executable(bench_neon_h264deblock
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tests/bench_neon_h264deblock.c
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tests/h264_deblock_ref.c
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${FFASM_H264DSP_SOURCES}
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)
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target_compile_options(bench_neon_h264deblock PRIVATE -O3 -march=armv8-a+simd)
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add_executable(bench_neon_idct
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tests/bench_neon_idct.c
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tests/vp9_idct8_ref.c
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${FFASM_SOURCES}
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)
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target_compile_options(bench_neon_idct PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 2 — VP9 loop filter NEON baseline.
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add_executable(bench_neon_lpf
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tests/bench_neon_lpf.c
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tests/vp9_lpf_ref.c
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${FFASM_LPF_SOURCES}
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)
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target_compile_options(bench_neon_lpf PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 3 — VP9 MC interpolation NEON baseline.
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add_executable(bench_neon_mc
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tests/bench_neon_mc.c
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tests/vp9_mc_ref.c
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${FFASM_MC_SOURCES}
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${FFC_MC_SOURCES}
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)
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target_compile_options(bench_neon_mc PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 4 — VP9 LPF wd=8 NEON baseline (same vendored .S as cycle 2).
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add_executable(bench_neon_lpf8
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tests/bench_neon_lpf8.c
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tests/vp9_lpf8_ref.c
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${FFASM_LPF_SOURCES}
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)
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target_compile_options(bench_neon_lpf8 PRIVATE -O3 -march=armv8-a+simd)
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# Cycle 5 — AV1 CDEF NEON baseline (dav1d snapshot).
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add_executable(bench_neon_cdef
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tests/bench_neon_cdef.c
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tests/cdef_ref.c
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${DAV1D_CDEF_ASM_SOURCES}
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${DAV1D_CDEF_C_SOURCES}
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)
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target_compile_options(bench_neon_cdef PRIVATE -O3 -march=armv8-a+simd)
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# bench_neon_idct doesn't need vulkan/drm — pure CPU baseline.
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# ---- Vulkan dispatch-overhead microbench (next chunk) ----------------------
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# Stub: written in a follow-up step. Toggle ON with -DDAEDALUS_BUILD_VULKAN=ON
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# once tests/bench_vulkan_dispatch.c exists.
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option(DAEDALUS_BUILD_VULKAN "Build Vulkan compute-dispatch microbench" ON)
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if (DAEDALUS_BUILD_VULKAN)
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find_package(Vulkan REQUIRED)
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# Compile GLSL compute shaders to SPIR-V via glslangValidator.
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# The binary loads them at runtime from the build dir (cwd-relative).
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find_program(GLSLANG_VALIDATOR
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NAMES glslangValidator glslang
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REQUIRED)
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set(NOOP_SPV ${CMAKE_BINARY_DIR}/noop.spv)
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add_custom_command(
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OUTPUT ${NOOP_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V -o ${NOOP_SPV}
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${CMAKE_SOURCE_DIR}/tests/shaders/noop.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/tests/shaders/noop.comp
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COMMENT "glslang: noop.comp -> noop.spv"
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VERBATIM
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)
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set(IDCT8_SPV ${CMAKE_BINARY_DIR}/v3d_idct8.spv)
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add_custom_command(
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OUTPUT ${IDCT8_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${IDCT8_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_idct8.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_idct8.comp
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COMMENT "glslang: v3d_idct8.comp -> v3d_idct8.spv"
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VERBATIM
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)
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set(LPF_SPV ${CMAKE_BINARY_DIR}/v3d_lpf_h_4_8.spv)
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add_custom_command(
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OUTPUT ${LPF_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${LPF_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_lpf_h_4_8.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_lpf_h_4_8.comp
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COMMENT "glslang: v3d_lpf_h_4_8.comp -> v3d_lpf_h_4_8.spv"
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VERBATIM
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)
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set(MC_SPV ${CMAKE_BINARY_DIR}/v3d_mc_8h.spv)
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add_custom_command(
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OUTPUT ${MC_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${MC_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_mc_8h.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_mc_8h.comp
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COMMENT "glslang: v3d_mc_8h.comp -> v3d_mc_8h.spv"
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VERBATIM
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)
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set(LPF8_SPV ${CMAKE_BINARY_DIR}/v3d_lpf_h_8_8.spv)
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add_custom_command(
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OUTPUT ${LPF8_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${LPF8_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_lpf_h_8_8.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_lpf_h_8_8.comp
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COMMENT "glslang: v3d_lpf_h_8_8.comp -> v3d_lpf_h_8_8.spv"
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VERBATIM
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)
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set(CDEF_SPV ${CMAKE_BINARY_DIR}/v3d_cdef.spv)
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add_custom_command(
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OUTPUT ${CDEF_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${CDEF_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_cdef.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_cdef.comp
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COMMENT "glslang: v3d_cdef.comp -> v3d_cdef.spv"
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VERBATIM
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)
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set(H264DEBLOCK_SPV ${CMAKE_BINARY_DIR}/v3d_h264deblock.spv)
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add_custom_command(
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OUTPUT ${H264DEBLOCK_SPV}
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COMMAND ${GLSLANG_VALIDATOR} -V --target-env vulkan1.3
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-o ${H264DEBLOCK_SPV}
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${CMAKE_SOURCE_DIR}/src/v3d_h264deblock.comp
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DEPENDS ${CMAKE_SOURCE_DIR}/src/v3d_h264deblock.comp
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COMMENT "glslang: v3d_h264deblock.comp -> v3d_h264deblock.spv"
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VERBATIM
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)
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add_custom_target(daedalus_shaders ALL DEPENDS ${NOOP_SPV} ${IDCT8_SPV} ${LPF_SPV} ${MC_SPV} ${LPF8_SPV} ${CDEF_SPV} ${H264DEBLOCK_SPV})
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# v3d_runner — reusable Vulkan plumbing.
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add_library(v3d_runner STATIC src/v3d_runner.c)
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target_include_directories(v3d_runner PUBLIC src)
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target_link_libraries(v3d_runner PUBLIC Vulkan::Vulkan)
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target_compile_options(v3d_runner PRIVATE -O2)
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add_executable(bench_vulkan_dispatch tests/bench_vulkan_dispatch.c)
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add_dependencies(bench_vulkan_dispatch daedalus_shaders)
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target_link_libraries(bench_vulkan_dispatch PRIVATE Vulkan::Vulkan)
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target_compile_options(bench_vulkan_dispatch PRIVATE -O2)
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add_executable(bench_v3d_idct
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tests/bench_v3d_idct.c
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tests/vp9_idct8_ref.c
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)
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add_dependencies(bench_v3d_idct daedalus_shaders)
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target_link_libraries(bench_v3d_idct PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_idct PRIVATE -O2)
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# Cycle 2 — QPU LPF bench.
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add_executable(bench_v3d_lpf
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tests/bench_v3d_lpf.c
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tests/vp9_lpf_ref.c
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)
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add_dependencies(bench_v3d_lpf daedalus_shaders)
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target_link_libraries(bench_v3d_lpf PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_lpf PRIVATE -O2)
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# Cycle 3 — QPU MC bench.
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add_executable(bench_v3d_mc
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tests/bench_v3d_mc.c
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tests/vp9_mc_ref.c
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)
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add_dependencies(bench_v3d_mc daedalus_shaders)
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target_link_libraries(bench_v3d_mc PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_mc PRIVATE -O2)
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# Cycle 4 — QPU LPF wd=8 bench.
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add_executable(bench_v3d_lpf8
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tests/bench_v3d_lpf8.c
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tests/vp9_lpf8_ref.c
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)
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add_dependencies(bench_v3d_lpf8 daedalus_shaders)
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target_link_libraries(bench_v3d_lpf8 PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_lpf8 PRIVATE -O2)
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# Cycle 5 — QPU CDEF bench (3-way M1 against NEON + C ref).
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add_executable(bench_v3d_cdef
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tests/bench_v3d_cdef.c
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tests/cdef_ref.c
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${DAV1D_CDEF_ASM_SOURCES}
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${DAV1D_CDEF_C_SOURCES}
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)
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add_dependencies(bench_v3d_cdef daedalus_shaders)
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target_link_libraries(bench_v3d_cdef PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_cdef PRIVATE -O2)
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# Cycle 8 — QPU H.264 deblock bench (3-way).
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add_executable(bench_v3d_h264deblock
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tests/bench_v3d_h264deblock.c
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tests/h264_deblock_ref.c
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${FFASM_H264DSP_SOURCES}
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)
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add_dependencies(bench_v3d_h264deblock daedalus_shaders)
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target_link_libraries(bench_v3d_h264deblock PRIVATE v3d_runner Vulkan::Vulkan)
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target_compile_options(bench_v3d_h264deblock PRIVATE -O2)
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endif()
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# ---- Phase 8 — public C API library + smoke test ---------------------------
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add_library(daedalus_core STATIC
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src/daedalus_core.c
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src/v3d_runner.c
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${FFASM_SOURCES}
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${FFASM_LPF_SOURCES}
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${FFASM_MC_SOURCES}
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${FFC_MC_SOURCES}
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${FFASM_H264IDCT_SOURCES}
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${FFASM_H264DSP_SOURCES}
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${DAV1D_CDEF_ASM_SOURCES}
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${DAV1D_CDEF_C_SOURCES}
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)
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target_include_directories(daedalus_core PUBLIC include)
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target_include_directories(daedalus_core PRIVATE src)
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target_link_libraries(daedalus_core PUBLIC Vulkan::Vulkan)
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target_compile_options(daedalus_core PRIVATE -O2)
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if (DAEDALUS_BUILD_VULKAN)
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add_dependencies(daedalus_core daedalus_shaders)
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endif()
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add_executable(test_api_idct
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tests/test_api_idct.c
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tests/vp9_idct8_ref.c
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)
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target_link_libraries(test_api_idct PRIVATE daedalus_core)
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target_compile_options(test_api_idct PRIVATE -O2)
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add_executable(test_api_lpf
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tests/test_api_lpf.c
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tests/vp9_lpf_ref.c
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tests/vp9_lpf8_ref.c
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|
)
|
|
target_link_libraries(test_api_lpf PRIVATE daedalus_core)
|
|
target_compile_options(test_api_lpf PRIVATE -O2)
|
|
|
|
add_executable(test_api_h264
|
|
tests/test_api_h264.c
|
|
tests/h264_idct4_ref.c
|
|
tests/h264_idct8_ref.c
|
|
tests/h264_deblock_ref.c
|
|
)
|
|
target_link_libraries(test_api_h264 PRIVATE daedalus_core)
|
|
target_compile_options(test_api_h264 PRIVATE -O2)
|
|
|
|
add_executable(test_api_opportunistic_qpu tests/test_api_opportunistic_qpu.c)
|
|
target_link_libraries(test_api_opportunistic_qpu PRIVATE daedalus_core)
|
|
target_compile_options(test_api_opportunistic_qpu PRIVATE -O2)
|
|
|
|
if (DAEDALUS_BUILD_VULKAN)
|
|
# (re-open the conditional so the closing endif() below balances)
|
|
|
|
|
|
# M4 — concurrent CPU(NEON) + QPU bench. Links the FFmpeg NEON
|
|
# snapshot so we can run real NEON kernels on pinned CPU cores
|
|
# while the QPU runs its dispatch loop concurrently.
|
|
add_executable(bench_concurrent
|
|
tests/bench_concurrent.c
|
|
${FFASM_SOURCES}
|
|
)
|
|
add_dependencies(bench_concurrent daedalus_shaders)
|
|
target_link_libraries(bench_concurrent PRIVATE v3d_runner Vulkan::Vulkan pthread)
|
|
target_compile_options(bench_concurrent PRIVATE -O3 -march=armv8-a+simd)
|
|
|
|
# Cycle 2 M4'' — concurrent LPF.
|
|
add_executable(bench_concurrent_lpf
|
|
tests/bench_concurrent_lpf.c
|
|
${FFASM_LPF_SOURCES}
|
|
)
|
|
add_dependencies(bench_concurrent_lpf daedalus_shaders)
|
|
target_link_libraries(bench_concurrent_lpf PRIVATE v3d_runner Vulkan::Vulkan pthread)
|
|
target_compile_options(bench_concurrent_lpf PRIVATE -O3 -march=armv8-a+simd)
|
|
|
|
# Cycle 3 M4''' — concurrent MC.
|
|
add_executable(bench_concurrent_mc
|
|
tests/bench_concurrent_mc.c
|
|
${FFASM_MC_SOURCES}
|
|
${FFC_MC_SOURCES}
|
|
)
|
|
add_dependencies(bench_concurrent_mc daedalus_shaders)
|
|
target_link_libraries(bench_concurrent_mc PRIVATE v3d_runner Vulkan::Vulkan pthread)
|
|
target_compile_options(bench_concurrent_mc PRIVATE -O3 -march=armv8-a+simd)
|
|
|
|
# Cycle 4 M4'''' — concurrent LPF wd=8.
|
|
add_executable(bench_concurrent_lpf8
|
|
tests/bench_concurrent_lpf8.c
|
|
${FFASM_LPF_SOURCES}
|
|
)
|
|
add_dependencies(bench_concurrent_lpf8 daedalus_shaders)
|
|
target_link_libraries(bench_concurrent_lpf8 PRIVATE v3d_runner Vulkan::Vulkan pthread)
|
|
target_compile_options(bench_concurrent_lpf8 PRIVATE -O3 -march=armv8-a+simd)
|
|
|
|
# Issue 003 — mixed-kernel M4 bench (NEON-N kernel A + QPU kernel B).
|
|
# Links all FFmpeg + dav1d NEON sources we have (cycles 1-8).
|
|
add_executable(bench_concurrent_mixed
|
|
tests/bench_concurrent_mixed.c
|
|
${FFASM_SOURCES}
|
|
${FFASM_LPF_SOURCES}
|
|
${FFASM_MC_SOURCES}
|
|
${FFC_MC_SOURCES}
|
|
${FFASM_H264DSP_SOURCES}
|
|
${DAV1D_CDEF_ASM_SOURCES}
|
|
${DAV1D_CDEF_C_SOURCES}
|
|
)
|
|
add_dependencies(bench_concurrent_mixed daedalus_shaders)
|
|
target_link_libraries(bench_concurrent_mixed PRIVATE v3d_runner Vulkan::Vulkan pthread)
|
|
target_compile_options(bench_concurrent_mixed PRIVATE -O3 -march=armv8-a+simd)
|
|
endif()
|
|
|
|
# ---- Summary ----------------------------------------------------------------
|
|
|
|
message(STATUS "daedalus-fourier build configured for ${CMAKE_SYSTEM_PROCESSOR}")
|
|
message(STATUS " FFmpeg snapshot: ${FFSNAP}")
|
|
message(STATUS " Build type: ${CMAKE_BUILD_TYPE}")
|
|
message(STATUS " Targets: bench_neon_idct"
|
|
"$<$<BOOL:${DAEDALUS_BUILD_VULKAN}>:; bench_vulkan_dispatch>")
|