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circuitpython/extmod
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Corran Webster d1574de3b6 extmod/modframebuf: Fix FrameBuffer size check for stride corner-cases. 
This is a fix for issue #15944, and handles corner cases in the FrameBuffer
code when using stride values where the last line's stride may extend past
the end of the underlying buffer.  This commit includes extra tests for
these corner cases.

For example a GS8 format FrameBuffer with a width of 8, height of 2 and
stride of 10 should be able to fit into a buffer of size 18 (10 bytes for
the first horizontal line, and 8 bytes for the second -- the full 10 bytes
are not needed).

Similarly a 1 by 9 FrameBuffer in MONO_VLSB format with a stride of 10
should be able to fit into a buffer of length 11 (10 bytes for the first
8 lines, and then one byte for the 9th line.

Being able to do this is particularly important when cropping the corner of
an existing FrameBuffer, either to copy a sprite or to clip drawing.

Signed-off-by: Corran Webster <cwebster@unital.dev>
2024-10-22 13:05:31 +11:00
..
asyncio extmod/asyncio: Make current_task raise exception when there is no task. 2024-02-28 15:48:51 +11:00
axtls-include all: Prune trailing whitespace. 2024-03-07 16:25:17 +11:00
berkeley-db all: Update extmod, ports, examples to build with new berkeley-db lib. 2024-03-16 12:19:12 +11:00
btstack all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
libmetal extmod/libmetal: Fix libmetal rules for mkdir dependencies. 2024-09-06 17:14:03 +10:00
lwip-include all: Unify header guard usage. 2017-07-18 11:57:39 +10:00
mbedtls extmod/mbedtls: Enable GCM and ECDHE-RSA in common mbedtls config. 2024-07-02 13:19:17 +10:00
nimble extmod/nimble: Check for active before setting address mode. 2024-03-15 12:59:58 +11:00
extmod.cmake extmod/network_ppp_lwip: Add network.PPP via lwIP. 2024-08-29 23:46:13 +10:00
extmod.mk extmod/network_ppp_lwip: Add network.PPP via lwIP. 2024-08-29 23:46:13 +10:00
font_petme128_8x8.h extmod: Move font_petme128_8x8.h from ports/stm32 to extmod. 2022-05-05 13:30:40 +10:00
machine_adc.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_adc_block.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_bitstream.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_i2c.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_i2s.c esp32/machine_i2s: Integrate new I2S IDF driver. 2024-03-08 13:31:02 +11:00
machine_mem.c extmod/modmachine: Add MICROPY_PY_MACHINE_MEMX configuration option. 2024-03-15 12:04:34 +11:00
machine_pinbase.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_pulse.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_pwm.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_signal.c extmod/modmachine: Add MICROPY_PY_MACHINE_SIGNAL configuration option. 2024-03-15 12:04:25 +11:00
machine_spi.c extmod/machine_spi: Support firstbit=LSB for machine.SoftSPI. 2024-07-12 22:59:31 +10:00
machine_timer.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_uart.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
machine_usb_device.c extmod/machine_usb_device: Add USBDevice.remote_wakeup method. 2024-07-02 10:23:26 +10:00
machine_wdt.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
misc.h extmod/os_dupterm: Let mp_os_dupterm_tx_strn() return num bytes written. 2023-12-22 10:26:52 +11:00
modasyncio.c extmod/modasyncio: Add support for a callback on TaskQueue push. 2024-06-20 00:11:05 +10:00
modbinascii.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modbluetooth.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modbluetooth.h all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modbtree.c extmod/modbtree: Add checks for already-closed database. 2024-07-22 10:42:29 +10:00
modcryptolib.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
moddeflate.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modframebuf.c extmod/modframebuf: Fix FrameBuffer size check for stride corner-cases. 2024-10-22 13:05:31 +11:00
modhashlib.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modheapq.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modjson.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modlwip.c extmod/modlwip: Fix compile error for lwIP with SLIP support. 2024-09-06 17:11:47 +10:00
modmachine.c extmod/modmachine: Use sys.exit as implementation of machine.soft_reset. 2024-07-20 12:18:07 +10:00
modmachine.h extmod/machine_usb_device: Add support for Python USB devices. 2024-03-15 14:22:11 +11:00
modnetwork.c extmod/network_ppp_lwip: Add network.PPP via lwIP. 2024-08-29 23:46:13 +10:00
modnetwork.h extmod/network_ppp_lwip: Add network.PPP via lwIP. 2024-08-29 23:46:13 +10:00
modonewire.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modopenamp.c extmod/modopenamp: Use mp_event_* functions for poll/wait. 2024-08-08 18:02:21 +10:00
modopenamp.h extmod/modopenamp_remoteproc: Add new OpenAMP RemoteProc class. 2024-03-15 18:11:28 +11:00
modopenamp_remoteproc.c extmod/modopenamp: Add support for building Open-AMP on device side. 2024-08-08 17:59:32 +10:00
modopenamp_remoteproc.h extmod/modopenamp_remoteproc: Add new OpenAMP RemoteProc class. 2024-03-15 18:11:28 +11:00
modopenamp_remoteproc_store.c extmod/modopenamp: Add support for building Open-AMP on device side. 2024-08-08 17:59:32 +10:00
modos.c extmod/modos: Include os.sep entry if MICROPY_VFS is enabled. 2024-07-20 12:32:31 +10:00
modplatform.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modplatform.h extmod/modplatform: Add picolibc to the recognised libcs list. 2024-06-17 13:12:54 +10:00
modrandom.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modre.c py: Add new cstack API for stack checking, with limit margin macro. 2024-08-14 12:55:45 +10:00
modselect.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modsocket.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modtime.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modtime.h all: Rename *umodule*.h to remove the "u" prefix. 2023-06-08 17:54:14 +10:00
modtls_axtls.c extmod/modtls_axtls: Add verify_mode and CERT_NONE constant. 2024-03-28 17:36:13 +11:00
modtls_mbedtls.c extmod/modtls_mbedtls: Optimise the DER certificate parsing fix. 2024-08-26 12:48:12 +10:00
moductypes.c extmod/moductypes: Validate the descriptor tuple. 2024-07-22 14:40:45 +10:00
modvfs.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modwebrepl.c all: Use new mp_obj_new_str_from_cstr() function. 2024-07-04 15:55:03 +10:00
modwebsocket.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
modwebsocket.h all: Rename *umodule*.h to remove the "u" prefix. 2023-06-08 17:54:14 +10:00
mpbthci.c extmod/modbluetooth: Refactor stack/hci/driver/port bindings. 2020-09-08 11:41:31 +10:00
mpbthci.h extmod/nimble: Add support for reading whole HCI UART packets. 2022-06-03 11:53:28 +10:00
network_cyw43.c extmod: Add interface and security constants at WLAN class level. 2024-03-28 12:52:28 +11:00
network_cyw43.h extmod: Add network-level class binding to cyw43 driver. 2019-06-03 16:47:35 +10:00
network_esp_hosted.c all: Use new mp_obj_new_str_from_cstr() function. 2024-07-04 15:55:03 +10:00
network_lwip.c all: Use new mp_obj_new_str_from_cstr() function. 2024-07-04 15:55:03 +10:00
network_ninaw10.c extmod/network_nina: Fix the AP security mode constants. 2024-07-12 01:03:46 +10:00
network_ppp_lwip.c extmod/network_ppp_lwip: Add network.PPP via lwIP. 2024-08-29 23:46:13 +10:00
network_wiznet5k.c extmod/network_wiznet5k: Add support for IPv6. 2024-08-26 13:02:44 +10:00
os_dupterm.c extmod/os_dupterm: Handle exception properly when it occurs in parallel. 2024-03-16 10:59:03 +11:00
vfs.c extmod/vfs: Fix buffer overflow of string comparison in umount. 2024-07-23 12:13:49 +10:00
vfs.h py/builtin: Clean up and simplify import_stat and builtin_open config. 2022-05-25 13:04:45 +10:00
vfs_blockdev.c extmod/vfs_blockdev: Implement common helper for read and write. 2024-09-26 22:08:48 +10:00
vfs_fat.c extmod/vfs_fat: Set default volume label on mkfs if it's defined. 2024-07-23 11:39:17 +10:00
vfs_fat.h extmod: Factor out block-device struct to make independent of fatfs. 2019-10-29 12:12:37 +11:00
vfs_fat_diskio.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
vfs_fat_file.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
vfs_lfs.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
vfs_lfs.h extmod: Add VFS littlefs bindings. 2019-10-29 14:17:29 +11:00
vfs_lfsx.c all: Use new mp_obj_new_str_from_cstr() function. 2024-07-04 15:55:03 +10:00
vfs_lfsx_file.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
vfs_posix.c all: Use new mp_obj_new_str_from_cstr() function. 2024-07-04 15:55:03 +10:00
vfs_posix.h extmod/vfs: Introduce a C-level VFS protocol, with fast import_stat. 2018-06-06 14:33:42 +10:00
vfs_posix_file.c extmod/vfs_posix_file: Skip flush of tty handles in msvc debug builds. 2024-10-09 15:03:07 +11:00
vfs_reader.c all: Remove the "STATIC" macro and just use "static" instead. 2024-03-07 14:20:42 +11:00
virtpin.c py/obj: Add accessors for type slots and use everywhere. 2022-09-19 19:06:07 +10:00
virtpin.h all: Unify header guard usage. 2017-07-18 11:57:39 +10:00