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qemu/hw/display
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SamJakob 345acc4439 hw/display/bcm2835_fb: fix fb_use_offsets condition 
It is common practice when implementing double-buffering on VideoCore
to do so by multiplying the height of the virtual buffer by the
number of virtual screens desired (i.e., two - in the case of
double-bufferring).

At present, this won't work in QEMU because the logic in
fb_use_offsets require that both the virtual width and height exceed
their physical counterparts.

This appears to be unintentional/a typo and indeed the comment
states; "Experimentally, the hardware seems to do this only if the
viewport size is larger than the physical screen".  The
viewport/virtual size would be larger than the physical size if
either virtual dimension were larger than their physical counterparts
and not necessarily both.

Signed-off-by: SamJakob <me@samjakob.com>
Message-id: 20240713160353.62410-1-me@samjakob.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-07-18 13:49:29 +01:00
..
acpi-vga-stub.c acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors 2022-11-07 14:00:29 -05:00
acpi-vga.c acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors 2022-11-07 14:00:29 -05:00
artist.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
ati_2d.c hw/display/ati: allow compiling without PIXMAN 2023-11-07 14:04:25 +04:00
ati_dbg.c ati-vga: Add 30 bit palette access register 2023-11-06 15:58:43 +04:00
ati_int.h ati-vga: Implement fallback for pixman routines 2023-11-06 15:58:45 +04:00
ati_regs.h ati-vga: Add 30 bit palette access register 2023-11-06 15:58:43 +04:00
ati.c ui/console: Convert mouse visibility parameter into bool 2024-07-16 20:04:08 +02:00
bcm2835_fb.c hw/display/bcm2835_fb: fix fb_use_offsets condition 2024-07-18 13:49:29 +01:00
blizzard.c hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
bochs-display.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
cg3.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
cirrus_vga_internal.h
cirrus_vga_isa.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
cirrus_vga_rop2.h
cirrus_vga_rop.h
cirrus_vga.c vga: implement horizontal pel panning in graphics modes 2024-01-18 10:43:13 +01:00
dm163.c hw/display : Add device DM163 2024-04-30 16:02:43 +01:00
dpcd.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
edid-generate.c edid: Fix clock of Detailed Timing Descriptor 2022-03-04 11:31:46 +01:00
edid-region.c
exynos4210_fimd.c hw/display/exynos4210_fimd: Pass frame buffer memory region as link 2024-02-26 18:40:09 +01:00
framebuffer.c
framebuffer.h
g364fb.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
i2c-ddc.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
jazz_led.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
Kconfig hw/display : Add device DM163 2024-04-30 16:02:43 +01:00
macfb.c hw/display/macfb: Fix missing ERRP_GUARD() in macfb_nubus_realize() 2024-03-12 11:45:33 +01:00
meson.build build: do not build virtio-vga-gl if virgl/opengl not available 2024-05-03 15:47:48 +02:00
next-fb.c hw/display/next-fb: Fix comment typo 2022-12-03 22:07:07 +01:00
omap_dss.c hw/arm/omap: Drop useless casts from void * to pointer 2023-01-12 17:15:09 +00:00
omap_lcdc.c hw/arm/omap: Drop useless casts from void * to pointer 2023-01-12 17:15:09 +00:00
pl110_template.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
pl110.c hw/display/pl110: Pass frame buffer memory region as link property 2024-02-26 18:39:58 +01:00
pxa2xx_lcd.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
qxl-logger.c hw/display/qxl: Pass requested buffer size to qxl_phys2virt() 2022-11-29 18:15:26 -05:00
qxl-render.c ui/console: Remove dpy_cursor_define_supported() 2024-07-16 20:04:08 +02:00
qxl.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
qxl.h Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
ramfb-standalone.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
ramfb-stubs.c ramfb: move stubs out of stubs/ 2024-04-18 11:17:27 +02:00
ramfb.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
sii9022.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
sm501.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
ssd0303.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
ssd0323.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
tc6393xb.c Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
tcx.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
trace-events hw/display : Add device DM163 2024-04-30 16:02:43 +01:00
trace.h
vga_int.h display: remove GraphicHwOps from typedefs.h 2024-05-03 15:47:48 +02:00
vga_regs.h vga: sort-of implement word and double-word access modes 2024-01-18 10:43:14 +01:00
vga-access.h
vga-helpers.h vga: optimize horizontal pel panning in 256-color modes 2024-01-18 10:43:14 +01:00
vga-isa.c docs/specs/standard-vga: Convert to rST 2023-11-02 12:52:06 +00:00
vga-mmio.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
vga-pci.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00
vga.c ui+display: rename is_buffer_shared() -> surface_is_allocated() 2024-06-19 12:42:03 +02:00
vhost-user-gpu-pci.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
vhost-user-gpu.c vhost-user-gpu: fix import of DMABUF 2024-07-01 17:16:04 -04:00
vhost-user-vga.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-dmabuf.c hw/display: fix memleak from virtio_add_resource 2023-10-22 05:18:16 -04:00
virtio-gpu-base.c Fix bugs when VM shutdown with virtio-gpu unplugged 2023-12-26 04:51:07 -05:00
virtio-gpu-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-pci-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-pci-rutabaga.c virtio-gpu-rutabaga: Add empty interface to fix arm64 crash 2023-11-06 14:25:30 +04:00
virtio-gpu-pci.c virtio-gpu: hostmem 2023-10-16 11:29:56 +04:00
virtio-gpu-rutabaga.c virtio-gpu-rutabaga.c: override resource_destroy method 2024-02-14 06:17:44 -05:00
virtio-gpu-udmabuf-stubs.c virtio-gpu: splitting one extended mode guest fb into n-scanouts 2021-11-05 12:29:19 +01:00
virtio-gpu-udmabuf.c ui/console: Use qemu_dmabuf_new() and free() helpers instead 2024-05-14 17:14:12 +04:00
virtio-gpu-virgl.c virtio-gpu: Correct virgl_renderer_resource_get_info() error check 2024-02-14 06:09:33 -05:00
virtio-gpu.c ui/console: Convert mouse visibility parameter into bool 2024-07-16 20:04:08 +02:00
virtio-vga-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-vga-rutabaga.c gfxstream + rutabaga: add initial support for gfxstream 2023-10-16 11:29:56 +04:00
virtio-vga.c hw, target: Add ResetType argument to hold and exit phase methods 2024-04-25 10:21:06 +01:00
virtio-vga.h hw/display/virtio-vga: Convert TYPE_VIRTIO_VGA_BASE to 3-phase reset 2022-12-16 15:59:07 +00:00
vmware_vga.c ui/console: Remove dpy_cursor_define_supported() 2024-07-16 20:04:08 +02:00
xenfb.c ui+display: rename is_buffer_shared() -> surface_is_allocated() 2024-06-19 12:42:03 +02:00
xlnx_dp.c hw/display: Constify VMState 2023-12-29 11:17:30 +11:00