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While this has been a desired feature for some time, to allow for reallocation
of the front buffer, it was made more necessary by the desire to avoid
requiring a NO_MOVE buffer type in TTM because buffer objects may not be left
pinned over VT switch. This is a step towards making those buffers
movable and resizable.
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Conflicts:
src/i830.h
src/i830_driver.c
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Turns out we can get away without this, so remove it, fix a crash, and only
swap planes/pipes if the DRM can support it.
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We want to associate plane A with pipe B on pre-965 mobile chips, since that's
the only way to get framebuffer compression on the builtin LVDS on those
platforms. However, if we do this swapping and DRM isn't aware of it, we may
end up requesting vblank events for the wrong pipe, or setting up SAREA buffer
swap state incorrectly.
This mod checks whether DRM supports the new plane->pipe swapping behavior, and
only enables the swapping if so. This should fix the bugs Lukas found and
debugged. Reviewed by Michel Danzer.
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These chipsets require that the hardware status page be referenced by an offset
in the GTT rather than a physical memory address, so the X Server allocates it
rather than the DRM.
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Need to bump the DRI DDX version minor for the added SAREA fields.
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This allows DRI clients to determine which pipe they should synchronize buffer
swaps of each window to.
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New i915 drm ioctl (in version 1.5) allows the X server to select
which pipe drives vblank interrupts. Use this to drive from the 'preferred'
pipe. Yes, per-window vblanks would be nice in a shared fb environment.
Maybe someday.
(cherry picked from 2fb375b665f4802819b89f2277fd6154006c11ee commit)
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Add Intel 945GM support
Add RandR rotation support (full 3D acceleration, HWcursor & Xvideo rotated too)
Remove shadow framebuffer rotation code
Add a new LinearAlloc option to allow more offscreen memory to be allocated
for XVideo applications. This allows HDTV movies to be played via Xvideo.
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- Intel i915GM support to 2D DDX and 3D Mesa drivers.
- PanelID identification
- DRI suspend/resume support
- Detection of monitor changes on VT switches
- Support custom video modes if available in the Video BIOS
- 3D enhancements:
* GL_ARB_texture_cube_map
* GL_EXT_blend_equation_separate
* GL_ATI_blend_equation_separate
* GL_ARB_point_parameters
* GL_NV_blend_square
* GL_EXT_cull_vertex
* GL_ARB_depth_texture
* GL_SGIX_depth_texture
* GL_ARB_shadow
* GL_EXT_shadow_funcs
* GL_3DFX_texture_compression_FXT1
By Tungsten Graphics, Keith Whitwell & Alan Hourihane.
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Dual Head support for i830, i855, i915.
ARGB cursor support (including i810) for all chipsets.
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