Implement Vulkan compute infrastructure and GDeflate format foundation

CMakeLists.txt

@@ -72,6 +72,48 @@ if (PkgConfig_FOUND)
     pkg_check_modules(LIBURING liburing)
 endif()
 
+# ============================================================
+# Shader compilation
+#
+# If glslangValidator is available, compile compute shaders
+# from GLSL to SPIR-V automatically during the build.
+# ============================================================
+
+find_program(GLSLANG_VALIDATOR glslangValidator)
+
+if(GLSLANG_VALIDATOR)
+    message(STATUS "Found glslangValidator: ${GLSLANG_VALIDATOR}")
+
+    # Find all .comp shader files
+    file(GLOB SHADER_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/shaders/*.comp)
+
+    set(SPIRV_SHADERS)
+    foreach(SHADER ${SHADER_SOURCES})
+        get_filename_component(SHADER_NAME ${SHADER} NAME)
+        set(SPIRV "${CMAKE_CURRENT_BINARY_DIR}/shaders/${SHADER_NAME}.spv")
+
+        add_custom_command(
+            OUTPUT ${SPIRV}
+            COMMAND ${CMAKE_COMMAND} -E make_directory 
+                    "${CMAKE_CURRENT_BINARY_DIR}/shaders"
+            COMMAND ${GLSLANG_VALIDATOR} -V ${SHADER} -o ${SPIRV}
+            DEPENDS ${SHADER}
+            COMMENT "Compiling shader ${SHADER_NAME} to SPIR-V"
+            VERBATIM
+        )
+
+        list(APPEND SPIRV_SHADERS ${SPIRV})
+    endforeach()
+
+    if(SPIRV_SHADERS)
+        add_custom_target(shaders ALL DEPENDS ${SPIRV_SHADERS})
+        message(STATUS "Shader compilation enabled (${list_length} shaders found)")
+    endif()
+else()
+    message(STATUS "glslangValidator not found - shader compilation disabled")
+    message(STATUS "  To enable: install vulkan-tools or spirv-tools package")
+endif()
+
 # ============================================================
 # Core runtime library
 #
@@ -232,6 +274,17 @@ if (DS_BUILD_TESTS)
     add_test(NAME ds_cpu_backend_test COMMAND ds_cpu_backend_test)
     add_test(NAME ds_error_handling_test COMMAND ds_error_handling_test)
 
+    # GDeflate format test
+    add_executable(ds_gdeflate_format_test
+        tests/gdeflate_format_test.cpp
+    )
+    if (TARGET ds_runtime)
+        target_link_libraries(ds_gdeflate_format_test PRIVATE ds_runtime)
+    elseif (TARGET ds_runtime_static)
+        target_link_libraries(ds_gdeflate_format_test PRIVATE ds_runtime_static)
+    endif()
+    add_test(NAME ds_gdeflate_format_test COMMAND ds_gdeflate_format_test)
+
     if (LIBURING_FOUND)
         add_executable(ds_io_uring_tests
             tests/io_uring_backend_test.cpp

README.md

@@ -82,6 +82,16 @@ The codebase has been significantly improved:
 - ⚠️ **io_uring backend**: Requires liburing dependency (not built by default)
 - ⚠️ **Request cancellation**: Enum added but cancel() method not yet implemented
 
+### 📋 Investigation & Planning Complete (Phase 0)
+Comprehensive investigation and planning documents have been created:
+- **[Master Roadmap](docs/master_roadmap.md)** (30KB) - Complete 36-week phased plan with microtasks
+- **[GDeflate Investigation](docs/investigation_gdeflate.md)** (16KB) - CPU & GPU implementation plan
+- **[Vulkan Compute Investigation](docs/investigation_vulkan_compute.md)** (26KB) - GPU compute pipelines
+- **[io_uring Investigation](docs/investigation_io_uring.md)** (20KB) - Multi-worker backend enhancement
+- **[Additional Features](docs/investigation_remaining_features.md)** (18KB) - Cancellation, GPU workflows, Wine/Proton
+
+Timeline: 36 weeks for full implementation, 12 weeks for MVP
+
 See [MISSING_FEATURES.md](MISSING_FEATURES.md) for the complete roadmap and [COMPARISON.md](COMPARISON.md) for documentation vs reality comparison.
 
 ---