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* ui/pixman: Consistent error handling in qemu_pixman_shareable_free()Markus Armbruster2025-09-301-1/+4
| | | | | | | | | | | | | | | qemu_pixman_shareable_free() wraps around either qemu_memfd_free() or qemu_win32_map_free(). The former reports trouble as error, with error_report(), then succeeds. The latter reports it as warning (we pass it &error_warn), then succeeds. Change the latter to report as error, too. Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-ID: <20250923091000.3180122-10-armbru@redhat.com> Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
* ui/vnc: take account of client byte order in pixman formatDaniel P. Berrangé2025-05-211-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The set_pixel_conversion() method is responsible for determining whether the VNC client pixel format matches the server format, and thus whether we can use the fast path "copy" impl for sending pixels, or must use the generic impl with bit swizzling. The VNC server format is set at build time to VNC_SERVER_FB_FORMAT, which corresponds to PIXMAN_x8r8g8b8. The qemu_pixman_get_format() method is then responsible for converting the VNC pixel format into a pixman format. The VNC client pixel shifts are relative to the associated endianness. The pixman formats are always relative to the host native endianness. The qemu_pixman_get_format() method does not take into account the VNC client endianness, and is thus returning a pixman format that is only valid with the host endianness matches that of the VNC client. This has been broken since pixman was introduced to the VNC server: commit 9f64916da20eea67121d544698676295bbb105a7 Author: Gerd Hoffmann <kraxel@redhat.com> Date: Wed Oct 10 13:29:43 2012 +0200 pixman/vnc: use pixman images in vnc. The flaw can be demonstrated using the Tigervnc client by using vncviewer -AutoSelect=0 -PreferredEncoding=raw server:display connecting from a LE client to a QEMU on a BE server, or the reverse. The bug was masked, however, because almost all VNC clients will advertize support for the "tight" encoding and the QEMU VNC server will prefer "tight" if advertized. The tight_pack24 method is responsible for taking a set of pixels which have already been converted into client endianness and then repacking them into the TPIXEL format which the RFB spec defines as "TPIXEL is only 3 bytes long, where the first byte is the red component, the second byte is the green component, and the third byte is the blue component of the pixel color value" IOW, the TPIXEL format is fixed on the wire, regardless of what the VNC client declare as its endianness. Since the VNC pixel encoding code was failing to honour the endian flag of the client, the tight_pack24 method was always operating on data in native endianness. Its impl cancelled out the VNC pixel encoding bug. With the VNC pixel encoding code now fixed, the tight_pack24 method needs to take into account that it is operating on data in client endianness, not native endianness. It thus may need to invert the pixel shifts. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
* ui: refactor using a common qemu_pixman_shareableMarc-André Lureau2024-10-141-8/+60
| | | | | | | | | | | | | Use a common shareable type for win32 & unix, and helper functions. This simplify the code as it avoids a lot of #ifdef'ery. Note: if it helps review, commits could be reordered to introduce the common type before introducing shareable memory for unix. Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-ID: <20241008125028.1177932-19-marcandre.lureau@redhat.com>
* ui/pixman: generalize shared_image_destroyMarc-André Lureau2024-10-141-8/+12
| | | | | | | | Learn to free memfd-allocated shared memory. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-ID: <20241008125028.1177932-10-marcandre.lureau@redhat.com>
* ui/win32: fix potential use-after-free with dbus shared memoryMarc-André Lureau2024-10-141-0/+15
| | | | | | | | | | | | | | | | | | DisplaySurface may be free before the pixman image is freed, since the image is refcounted and used by different objects, including pending dbus messages. Furthermore, setting the destroy function in create_displaysurface_from() isn't appropriate, as it may not be used, and may be overriden as in ramfb. Set the destroy function when the shared handle is set, use the HANDLE directly for destroy data, using a single common helper qemu_pixman_win32_image_destroy(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Message-ID: <20241008125028.1177932-5-marcandre.lureau@redhat.com>
* ui: remove break after g_assert_not_reached()Pierrick Bouvier2024-09-131-1/+0
| | | | | | | | | | | | | | | | | | | | | Use of assert(false) can trip spurious control flow warnings from some versions of GCC (i.e. using -fsanitize=thread with gcc-12): error: control reaches end of non-void function [-Werror=return-type] default: g_assert_not_reached(); break; | ^^^^^ Solve that by removing the unreachable 'break' statement, unifying the code base on g_assert_not_reached() instead. Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240910221606.1817478-37-pierrick.bouvier@linaro.org> [PMD: Add description suggested by Eric Blake] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* ui: compile out some qemu-pixman functions when !PIXMANMarc-André Lureau2023-11-071-0/+6
| | | | | | | | | Those functions require the PIXMAN library. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* ui: add XBGR8888 and ABGR8888 in drm_format_pixman_mapKen Xue2023-10-031-1/+3
| | | | | | | | | | | | Android uses XBGR8888 and ABGR8888 as default scanout buffer, But qemu does not support them for qemu_pixman_to_drm_format conversion within virtio_gpu_create_dmabuf for virtio gpu. so, add those 2 formats into drm_format_pixman_map. Signed-off-by: Ken Xue <Ken.Xue@amd.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-ID: <20230914013151.805363-1-Ken.Xue@amd.com>
* ui: remove qemu_pixman_linebuf_copy()Marc-André Lureau2023-09-011-8/+0
| | | | | | | | | Since commit 43c7d8bd449 ("console: add qemu_pixman_linebuf_copy"), it seems it was never used. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20230830093843.3531473-3-marcandre.lureau@redhat.com>
* ui: remove qemu_pixman_color() helperMarc-André Lureau2023-09-011-11/+0
| | | | | | | | | Usage removed in commit e27bd65a72d ("console: switch color_table_rgb to pixman_color_t") Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230830093843.3531473-2-marcandre.lureau@redhat.com>
* console/win32: allocate shareable display surfaceMarc-André Lureau2023-06-271-0/+1
| | | | | | | | | | | | | | | Introduce qemu_win32_map_alloc() and qemu_win32_map_free() to allocate shared memory mapping. The handle can be used to share the mapping with another process. Teach qemu_create_displaysurface() to allocate shared memory. Following patches will introduce other places for shared memory allocation. Other patches for -display dbus will share the memory when possible with the client, to avoid expensive memory copy between the processes. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20230606115658.677673-10-marcandre.lureau@redhat.com>
* ui/pixman: Add qemu_pixman_to_drm_format()Vivek Kasireddy2021-05-271-11/+24
| | | | | | | | | | | This new function to get the drm_format associated with a pixman format will be useful while creating a dmabuf. Based-on-patch-by: Gerd Hoffmann <kraxel@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Message-Id: <20210526231429.1045476-11-vivek.kasireddy@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* Include qemu-common.h exactly where neededMarkus Armbruster2019-06-121-1/+0
| | | | | | | | | | | | | | | | No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
* avoid TABs in files that only contain a fewPaolo Bonzini2019-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most files that have TABs only contain a handful of them. Change them to spaces so that we don't confuse people. disas, standard-headers, linux-headers and libdecnumber are imported from other projects and probably should be exempted from the check. Outside those, after this patch the following files still contain both 8-space and TAB sequences at the beginning of the line. Many of them have a majority of TABs, or were initially committed with all tabs. bsd-user/i386/target_syscall.h bsd-user/x86_64/target_syscall.h crypto/aes.c hw/audio/fmopl.c hw/audio/fmopl.h hw/block/tc58128.c hw/display/cirrus_vga.c hw/display/xenfb.c hw/dma/etraxfs_dma.c hw/intc/sh_intc.c hw/misc/mst_fpga.c hw/net/pcnet.c hw/sh4/sh7750.c hw/timer/m48t59.c hw/timer/sh_timer.c include/crypto/aes.h include/disas/bfd.h include/hw/sh4/sh.h libdecnumber/decNumber.c linux-headers/asm-generic/unistd.h linux-headers/linux/kvm.h linux-user/alpha/target_syscall.h linux-user/arm/nwfpe/double_cpdo.c linux-user/arm/nwfpe/fpa11_cpdt.c linux-user/arm/nwfpe/fpa11_cprt.c linux-user/arm/nwfpe/fpa11.h linux-user/flat.h linux-user/flatload.c linux-user/i386/target_syscall.h linux-user/ppc/target_syscall.h linux-user/sparc/target_syscall.h linux-user/syscall.c linux-user/syscall_defs.h linux-user/x86_64/target_syscall.h slirp/cksum.c slirp/if.c slirp/ip.h slirp/ip_icmp.c slirp/ip_icmp.h slirp/ip_input.c slirp/ip_output.c slirp/mbuf.c slirp/misc.c slirp/sbuf.c slirp/socket.c slirp/socket.h slirp/tcp_input.c slirp/tcpip.h slirp/tcp_output.c slirp/tcp_subr.c slirp/tcp_timer.c slirp/tftp.c slirp/udp.c slirp/udp.h target/cris/cpu.h target/cris/mmu.c target/cris/op_helper.c target/sh4/helper.c target/sh4/op_helper.c target/sh4/translate.c tcg/sparc/tcg-target.inc.c tests/tcg/cris/check_addo.c tests/tcg/cris/check_moveq.c tests/tcg/cris/check_swap.c tests/tcg/multiarch/test-mmap.c ui/vnc-enc-hextile-template.h ui/vnc-enc-zywrle.h util/envlist.c util/readline.c The following have only TABs: bsd-user/i386/target_signal.h bsd-user/sparc64/target_signal.h bsd-user/sparc64/target_syscall.h bsd-user/sparc/target_signal.h bsd-user/sparc/target_syscall.h bsd-user/x86_64/target_signal.h crypto/desrfb.c hw/audio/intel-hda-defs.h hw/core/uboot_image.h hw/sh4/sh7750_regnames.c hw/sh4/sh7750_regs.h include/hw/cris/etraxfs_dma.h linux-user/alpha/termbits.h linux-user/arm/nwfpe/fpopcode.h linux-user/arm/nwfpe/fpsr.h linux-user/arm/syscall_nr.h linux-user/arm/target_signal.h linux-user/cris/target_signal.h linux-user/i386/target_signal.h linux-user/linux_loop.h linux-user/m68k/target_signal.h linux-user/microblaze/target_signal.h linux-user/mips64/target_signal.h linux-user/mips/target_signal.h linux-user/mips/target_syscall.h linux-user/mips/termbits.h linux-user/ppc/target_signal.h linux-user/sh4/target_signal.h linux-user/sh4/termbits.h linux-user/sparc64/target_syscall.h linux-user/sparc/target_signal.h linux-user/x86_64/target_signal.h linux-user/x86_64/termbits.h pc-bios/optionrom/optionrom.h slirp/mbuf.h slirp/misc.h slirp/sbuf.h slirp/tcp.h slirp/tcp_timer.h slirp/tcp_var.h target/i386/svm.h target/sparc/asi.h target/xtensa/core-dc232b/xtensa-modules.inc.c target/xtensa/core-dc233c/xtensa-modules.inc.c target/xtensa/core-de212/core-isa.h target/xtensa/core-de212/xtensa-modules.inc.c target/xtensa/core-fsf/xtensa-modules.inc.c target/xtensa/core-sample_controller/core-isa.h target/xtensa/core-sample_controller/xtensa-modules.inc.c target/xtensa/core-test_kc705_be/core-isa.h target/xtensa/core-test_kc705_be/xtensa-modules.inc.c tests/tcg/cris/check_abs.c tests/tcg/cris/check_addc.c tests/tcg/cris/check_addcm.c tests/tcg/cris/check_addoq.c tests/tcg/cris/check_bound.c tests/tcg/cris/check_ftag.c tests/tcg/cris/check_int64.c tests/tcg/cris/check_lz.c tests/tcg/cris/check_openpf5.c tests/tcg/cris/check_sigalrm.c tests/tcg/cris/crisutils.h tests/tcg/cris/sys.c tests/tcg/i386/test-i386-ssse3.c ui/vgafont.h Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20181213223737.11793-3-pbonzini@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* ui/pixman: add qemu_drm_format_to_pixman()Gerd Hoffmann2018-03-131-0/+22
| | | | | | | | Map drm fourcc codes to pixman formats. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* pixman: drop submoduleGerd Hoffmann2017-09-131-4/+0
| | | | | | | | | | | Drop pixman submodule and support for the "internal" pixman build. pixman should be reasonably well established meanwhile so we don't need the fallback submodule any more. While being at it also drop some #ifdefs for pixman versions older than what we require in configure anyway. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20170905140116.28181-2-kraxel@redhat.com
* coccinelle: Remove unnecessary variables for function return valueEduardo Habkost2016-06-201-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use Coccinelle script to replace 'ret = E; return ret' with 'return E'. The script will do the substitution only when the function return type and variable type are the same. Manual fixups: * audio/audio.c: coding style of "read (...)" and "write (...)" * block/qcow2-cluster.c: wrap line to make it shorter * block/qcow2-refcount.c: change indentation of wrapped line * target-tricore/op_helper.c: fix coding style of "remainder|quotient" * target-mips/dsp_helper.c: reverted changes because I don't want to argue about checkpatch.pl * ui/qemu-pixman.c: fix line indentation * block/rbd.c: restore blank line between declarations and statements Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1465855078-19435-4-git-send-email-ehabkost@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Unused Coccinelle rule name dropped along with a redundant comment; whitespace touched up in block/qcow2-cluster.c; stale commit message paragraph deleted] Signed-off-by: Markus Armbruster <armbru@redhat.com>
* ui: Clean up includesPeter Maydell2016-02-041-0/+1
| | | | | | | | | | Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-2-git-send-email-peter.maydell@linaro.org
* ui/pixman: add qemu_pixman_check_formatGerd Hoffmann2015-01-191-0/+27
| | | | | | Convinience check_format function for UIs using pixman. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* ui: Make qemu_default_pixman_format() return 0 on unsupported formatsBenjamin Herrenschmidt2015-01-191-1/+1
| | | | | | | | | In order to remove the logic for detecting supported shared pixmap formats from device models, make qemu_default_pixman_format() capable for failing by returning 0 which is not a possible format value rather than asserting. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* pixman: fix qemu_default_pixman_format (32bpp non-native endian)Gerd Hoffmann2014-09-301-1/+1
| | | | | | | | Bug breaks SDL display of bigendian guests on little endian hosts. Reported-by: BALATON Zoltan <balaton@eik.bme.hu> Reported-by: Valentin Manea <valentin.manea@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* console: add qemu_pixman_linebuf_copyGerd Hoffmann2014-09-051-0/+9
| | | | | | | Helper function for copying data from linebuf to framebuffer using pixman, possibly converting in case src and dst formats differ. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* console: add qemu_default_pixman_formatGerd Hoffmann2014-09-051-0/+25
| | | | | | Function returning the default pixman format for a given depth. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* console: add qemu_pixelformat_from_pixmanGerd Hoffmann2014-09-051-0/+56
| | | | | | | | Function to convert pixman format codes to qemu PixelFormat. [ Benjamin Herrenschmidt: fix BGRA+RGBA shifts ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* pixman: render vgafont glyphs into pixman imagesGerd Hoffmann2013-04-161-0/+43
| | | | | | | Add helper functions to create pixman mask images for glyphs and to render these glyphs into a pixman image. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* pixman: add qemu_pixman_color()Gerd Hoffmann2013-04-161-0/+11
| | | | | | | Helper function to map qemu colors (32bit integer + matching PixelFormat) into pixman_color_t. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* qemu-pixman.h: Avoid mutual inclusion loop with console.hPeter Maydell2013-01-301-1/+2
| | | | | | | | | | | | Remove an unnecessary mutual inclusion loop between qemu-pixman.h and console.h, since the former was only including the latter for 'PixelFormat*', which can be provided by typedefs.h. This requires a minor adjustment to the files which included qemu-pixman.h, since they were relying on it implicitly dragging in all of console.h. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* ui: move files to ui/ and include/ui/Paolo Bonzini2012-12-191-0/+80
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>