mirror of
https://github.com/crosspoint-reader/crosspoint-reader.git
synced 2026-04-29 10:26:52 -07:00
Justin MitchellandGitHub
83cd96bc2f
Adds a PlatformIO pre-build script to patch JPEGDEC library. When decoding progressive JPEGs with AC coefficients, MCU_SKIP (-8) causes array index 0xFFFFF8, creating a wild pointer ~33MB past the sMCUs array. The patch redirects pMCU to sMCUs[0] when MCU_SKIP is active, preventing store-access faults while maintaining correct behavior for JPEG_SCALE_EIGHTH decoding. Devices with larger framebuffers (like the x3) (792×528 = 52,272 bytes vs 800×480 = 48,000 bytes) have less free heap, shifting the allocation and changing where the wild pointer lands. Commit 8628297 guarded the DC coefficient write (pMCU[0]) with if (iMCU >= 0), which prevents crashes for progressive JPEGs whose first scan is DC-only (iScanEnd == 0). However, if the first scan includes AC coefficients (iScanEnd > 0), the AC decode loop still writes through the wild pointer and crashes.
100 lines
2.8 KiB
INI
100 lines
2.8 KiB
INI
[platformio]
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default_envs = default
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extra_configs = platformio.local.ini
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[crosspoint]
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version = 1.2.0
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[base]
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platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.37/platform-espressif32.zip
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board = esp32-c3-devkitm-1
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framework = arduino
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monitor_speed = 115200
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upload_speed = 921600
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check_tool = cppcheck
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check_flags = --enable=all --suppress=missingIncludeSystem --suppress=unusedFunction --suppress=unmatchedSuppression --suppress=*:*/.pio/* --inline-suppr
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check_skip_packages = yes
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board_upload.flash_size = 16MB
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board_upload.maximum_size = 16777216
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board_upload.offset_address = 0x10000
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build_flags =
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-DARDUINO_USB_MODE=1
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-DARDUINO_USB_CDC_ON_BOOT=1
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-DEINK_DISPLAY_SINGLE_BUFFER_MODE=1
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-DDISABLE_FS_H_WARNING=1
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-DDESTRUCTOR_CLOSES_FILE=1
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# https://libexpat.github.io/doc/api/latest/#XML_GE
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-DXML_GE=0
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-DXML_CONTEXT_BYTES=1024
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-std=gnu++2a
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# Enable UTF-8 long file names in SdFat
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-DUSE_UTF8_LONG_NAMES=1
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# Increase PNG scanline buffer to support up to 2048px wide images
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# Default is (320*4+1)*2=2562, we need more for larger images
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-DPNG_MAX_BUFFERED_PIXELS=16416
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-Wno-bidi-chars
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-Wl,--wrap=panic_print_backtrace,--wrap=panic_abort
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-fno-exceptions
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build_unflags =
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-std=gnu++11
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-fexceptions
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; Board configuration
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board_build.flash_mode = dio
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board_build.flash_size = 16MB
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board_build.partitions = partitions.csv
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extra_scripts =
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pre:scripts/build_html.py
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pre:scripts/gen_i18n.py
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pre:scripts/git_branch.py
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pre:scripts/patch_jpegdec.py
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; Libraries
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lib_deps =
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BatteryMonitor=symlink://open-x4-sdk/libs/hardware/BatteryMonitor
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InputManager=symlink://open-x4-sdk/libs/hardware/InputManager
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EInkDisplay=symlink://open-x4-sdk/libs/display/EInkDisplay
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SDCardManager=symlink://open-x4-sdk/libs/hardware/SDCardManager
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bblanchon/ArduinoJson @ 7.4.2
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ricmoo/QRCode @ 0.0.1
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bitbank2/PNGdec @ ^1.0.0
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https://github.com/bitbank2/JPEGDEC.git#86282979224c8a32fd51e091ed5a35b0c699a52b
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links2004/WebSockets @ 2.7.3
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[env:default]
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extends = base
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build_flags =
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${base.build_flags}
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; CROSSPOINT_VERSION is set by scripts/git_branch.py (includes current branch)
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-DENABLE_SERIAL_LOG
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-DLOG_LEVEL=2 ; Set log level to debug for development builds
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[env:gh_release]
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extends = base
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build_flags =
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${base.build_flags}
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-DCROSSPOINT_VERSION=\"${crosspoint.version}\"
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-DENABLE_SERIAL_LOG
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-DLOG_LEVEL=1 ; Set log level to info for release builds
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[env:gh_release_rc]
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extends = base
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build_flags =
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${base.build_flags}
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-DCROSSPOINT_VERSION=\"${crosspoint.version}-rc+${sysenv.CROSSPOINT_RC_HASH}\"
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-DENABLE_SERIAL_LOG
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-DLOG_LEVEL=1 ; Set log level to info for release candidate builds
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[env:slim]
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extends = base
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build_flags =
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${base.build_flags}
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-DCROSSPOINT_VERSION=\"${crosspoint.version}-slim\"
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; serial output is disabled in slim builds to save space
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-UENABLE_SERIAL_LOG
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