portersky
90d013695d
- Replace window class with cbt::opengl::context - Add buffer resource (VBO, EBO, UBO, SSBO) with move semantics - Add texture resource with format/type enums and filtering - Add descriptor_set for Vulkan-style resource binding - All resources use RAII with proper cleanup
63 lines
2.5 KiB
CMake
63 lines
2.5 KiB
CMake
# ==============================================================================
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# Findmvt.cmake
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# ==============================================================================
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# This module provides the Mapbox Vector Tile Specification (v2.1) for use
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# with protozero. The .proto file is downloaded as a reference; actual decoding
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# is done manually via protozero (no code generation step required).
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#
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# Targets provided:
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# mvt::mvt - Interface target (pulls in protozero)
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#
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# Variables set:
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# mvt_FOUND - TRUE if mvt is available
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# mvt_LIBRARIES - The library target (mvt::mvt)
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# mvt_PROTO_FILE - Path to the downloaded vector_tile.proto
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# ==============================================================================
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if (DEFINED _FINDMVT_INCLUDED)
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return()
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endif()
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set(_FINDMVT_INCLUDED TRUE)
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# ------------------------------------------------------------------------------
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# Protozero (the actual parsing library)
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# ------------------------------------------------------------------------------
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find_package(protozero REQUIRED)
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# ------------------------------------------------------------------------------
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# Download .proto file (reference only — no code generation)
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# ------------------------------------------------------------------------------
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set(_MVT_PROTO_DIR "${CMAKE_CURRENT_BINARY_DIR}/mvt_proto")
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set(_MVT_PROTO_FILE "${_MVT_PROTO_DIR}/vector_tile.proto")
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file(MAKE_DIRECTORY "${_MVT_PROTO_DIR}")
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if (NOT EXISTS "${_MVT_PROTO_FILE}")
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message(STATUS "Downloading vector_tile.proto")
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file(DOWNLOAD
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"https://raw.githubusercontent.com/mapbox/vector-tile-spec/refs/heads/master/2.1/vector_tile.proto"
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"${_MVT_PROTO_FILE}"
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STATUS _download_status
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)
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list(GET _download_status 0 _download_code)
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if (NOT _download_code EQUAL 0)
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list(GET _download_status 1 _download_error)
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message(FATAL_ERROR "Failed to download vector_tile.proto: ${_download_error}")
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endif()
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endif()
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message(STATUS "MVT proto: ${_MVT_PROTO_FILE}")
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# ------------------------------------------------------------------------------
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# Interface target
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# ------------------------------------------------------------------------------
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if (NOT TARGET mvt::mvt)
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add_library(mvt INTERFACE)
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target_link_libraries(mvt INTERFACE protozero::protozero)
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add_library(mvt::mvt ALIAS mvt)
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endif()
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set(mvt_FOUND TRUE)
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set(mvt_LIBRARIES mvt::mvt)
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set(mvt_PROTO_FILE "${_MVT_PROTO_FILE}" CACHE FILEPATH "Path to vector_tile.proto")
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