This is part of the EGL spec, and is useful for a tiled renderer to avoid
the memory bandwidth cost of storing the depth/stencil buffers.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

The kms-dri swrast driver cannot share buffers using the GEM,
so it must tell the loader to disable extensions relying on
that, without disabling the image DRI extension altogether
(which would prevent the loader from working at all).
This requires a new gallium capability (which is queried on
the pipe_screen and for swrast drivers it's forwarded to the
winsys), and requires a new version of the DRI image extension.

[Emil Velikov]
 - Rebased on top of gallium-dri megadrivers.
 - Drop PIPE_CAP_BUFFER_SHARE and sw_winsys::get_param hook.
The can_share_buffer cap is set at InitScreen. We use a different
InitScreen (and thus value for the cap) function for kms_dri, due to
deeper differences originating from dri megadrivers.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

Drop stdbool, due to the X server being a pain and having
struct members called bool, although I've sent a patch to fix
that we should retain stupidity here. Use unsigned char
which is what GLboolean is anyways.

Signed-off-by: Dave Airlie <airlied@redhat.com>

This in theory changes ABI for the boolean->bool I think,
but nothing in the tree uses configQueryb AFAICS.

Reviewed-by: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>

It allows to blit two __DRIimages.

Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

With commit e59fa4c46c8("dri2: release texture image.") we updated the
extension without bumping the version number. The patch itself added an
interface required to enable texture_from_pixmap on certain platforms.

The new code was effectively never build, as it depended on
__DRI_TEX_BUFFER_VERSION >= 3, which never came to be in upstream mesa.

This commit bumps the version number, drops the __DRI_TEX_BUFFER_VERSION
checks and resolves all the build conflicts. Additionally it add a version
check as egl and dri3, as require version 2 of the extension which does
not have the releaseTexBuffer hook.

Cc: Juan Zhao <juan.j.zhao@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

Note the member function releaseTexBuffer was added without
bumping spec version, and currently no drivers implement it.

v2: releaseTexBuffer was introduced by version 3

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

The __DRIimage createImageFromFds function takes a fourcc code, but there was
no fourcc code that match __DRI_IMAGE_FORMAT_SARGB8. This adds a define for
that format, adds a translation in DRI3 from __DRI_IMAGE_FORMAT_SARGB8 to
__DRI_IMAGE_FOURCC_SARGB8888 and then adds translations *back* to
__IMAGE_FORMAT_SARGB8 in both the i915 and i965 drivers.

I'll refrain from comments on whether I think having two separate sets of
format defines in dri_interface.h is a good idea or not...

Fixes piglit glx-tfp and glx-visuals-depth

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

This patches add MESA_copy_sub_buffer support to the dri sw loader and
then to gallium state tracker, llvmpipe, softpipe and other bits.

It reuses the dri1 driver extension interface, and it updates the swrast
loader interface for a new putimage which can take a stride.

I've tested this with gnome-shell with a cogl hacked to reenable sub copies
for llvmpipe and the one piglit test.

I could probably split this patch up as well.

v2: pass a pipe_box, to reduce the entrypoints, as per Jose's review,
add to p_screen doc comments.

v3: finish off winsys interfaces, add swrast classic support as well.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

swrast: add support for copy_sub_buffer

createContextAttribs is a superset of what createNewContext provides.
Also remove the function typedef, since createNewContext is deprecated
and no longer used in  multiple interfaces.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Cc: "10.0" <mesa-stable@lists.freedesktop.org>

These provide an interface between the driver and the loader to allocate
color buffers through the DRIimage extension interface rather than through a
loader-specific extension (as is used by DRI2, for instance).

The driver uses the loader 'getBuffers' interface to allocate color buffers.

The loader uses the createNewScreen2, createNewDrawable, createNewContext,
getAPIMask and createContextAttribs APIS (mostly shared with DRI2).

This interface will work with the DRI3 loader, and should also work with GBM
and other loaders so that drivers need not be customized for each new loader
interface, as long as they provide this image interface.

v2: Fix build of i915 and i965 together (by anholt)

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Eric Anholt <eric@anholt.net>

This format will be used by the i965 driver

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

This just renames them so that they can be used with the DRI3 extension
without causing too much confusion.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

This will be used to let apps query hardware and driver limits before
creating a GL context.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

As we move to megadrivers, we are unable to build multiple drivers with
the same public global symbol per driver (Think an X Server with an intel
and a nouveau driver, and the X Server implementing indirect for both --
we have to actually talk to the right driver).  By slipping the
driDriverAPI vtable into the driver's extension list, we can replace the
usage of the global symbol with usage of the loader-dlsym()ed driver
information.

v2: Pull in the hunk to avoid crashing on null driver_extensions.  Thanks,
    Emil!

Reviewed-by: Matt Turner <mattst88@gmail.com> (v1)
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

This will allow a megadrivers build to reference the actual driver being
loaded from the shared dri_util screen creation code.

v2: Fix indentation, fallback case in EGL (review by Emil).

Reviewed-by: Matt Turner <mattst88@gmail.com> (v1)
Reviewed-by: Chad Versace <chad.versace@linux.intel.com> (v1)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

The previous interface relied on a static struct, which meant that the
driver didn't get a chance to edit the struct before the struct got used.
For megadrivers, I want struct specific to the driver being loaded.

v2: Fix the prototype in the docs (caught by Marek).  Since the driver
    name was in the function, we didn't need to also pass it in.
v3: Fix asprintf error checking (caught by Matt's gcc).

Reviewed-by: Matt Turner <mattst88@gmail.com> (v1)
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

Turns out already we have this nice mechanism for providing optional
things from the driver to the loader, and I was going to have to rename
the public global symbol to avoid conflicts when doing megadrivers.

While the former __driConfigOptions is technically loader interface, this
is the only loader that made use of that symbol.  Continue paying
attention to it if we can't find the new option, to retain compatibility
with old drivers.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

We add support for the ARGB2101010 color format to the DRI image extension,
which allows DRI loaders to create a __DRIimage with this color format.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>

Signed-off-by: Axel Davy <axel.davy@ens.fr>

v2: do not break ABI, but instead introduce new entry point for
    dma buffers and bump up the dri-interface version to eight

v3 (Chad): allow the hook to specify an error originating from the
           driver. For now only unsupported format is considered.
           I thought about rejecting the hints also as they are
           addressing only YUV sampling which is not supported at
           the moment but then thought against it as the spec is
           not saying one way or the other.

v4 (Eric, Chad): restrict to rgb formatted only

v5: rebased on top of i915/i965 split

v6 (Chad): document using full extension name

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

Mark __DRI_ATTRIB_FLOAT_MODE as deprecated, and introduce new flags to
__DRI_ATTRIB_RENDER_TYPE for float modes.  Both signed float
(fbconfig_float) and unsigned (packed_float) are introduced. The old
attribute should be set for both float modes.

v2 (idr): Require that the render mode from the DRI attributes matches the
render mode of the config exactly.  This is the behavior of the old code.

Signed-off-by: Tomasz Lis <tomasz.lis@intel.com>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>

Add create image from texture extension and bump version.

v8: - Add appropriate image errors codes in DRI interface so we don't
      have to use internal EGL functions in driver. Suggested by Chad Versace.

Reviewed-by: Eric Anholt <eric@anholt.net> (v6)
Reviewed-by: Chad Versace <chad.versace@linux.intel.com> (v8)
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>

This enum corresponds to EGL_OPENGL_ES3_BIT_KHR.
Neither the GLX nor EGL layer use the enum yet.

I don't like the GLES bits. I'd prefer that all GLES APIs be exposed
through a single API bit, as is done in GLX_EXT_create_context_es_profile.
But, we need this GLES3 enum in order to do the plumbing necessary to
correctly support EGL_OPENGL_ES3_BIT_KHR as required by the
EGL_KHR_create_context spec.

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

The following commit broke the i965 build:

    commit 4a486f8bf2
    Author: Marek Olšák <maraeo@gmail.com>
    Date:   Fri Nov 23 18:31:42 2012 +0100

    glx/dri2: add and use new driver hook flush_with_flags

That commit added a forward declaration of enum __DRI2throttleReason to
dri_interface.h. C++ 98 does not allow forward declarations of enums.

The fix: Move the enum's definition to earlier in the file.

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

As discussed with Kristian on #wayland. Pushes the decision of components into
the dri driver giving it greater freedom to allow t to implement YUV samplers
in hardware, and which mode to use.

This interface will also allow drivers like SVGA to implement YUV surfaces
without the need to sub-allocate and instead send 3 seperate buffers for each
channel, currently not implemented.

I have tested these changes on Gallium Svga. Scott tested them on both intel
and Gallium Radeon. Kristan and Pekka tested them on intel.

v2: Fix typo in dri2_from_planar.
v3: Merge in intel changes.

Tested-by: Scott Moreau <oreaus@gmail.com>
Tested-by: Pekka Paalanen <ppaalanen@gmail.com>
Tested-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>

Tested-by: Scott Moreau <oreaus@gmail.com>
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>

Since its not used by anything anymore and no release has gone out
where it was being used.

Tested-by: Scott Moreau <oreaus@gmail.com>
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>

Unlike 1.x to 2.0, OpenGL ES 3.0 is backwards compatible with 2.0.  Use the
same API flag for both.  Applications that specifically want 3.0 will specify
this using the major / minor version attributes.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

This generalizes and replaces gbm_bo_create_for_egl_image.  gbm_bo_import
will create a gbm_bo from either an EGLImage or a struct wl_buffer.

The additions in version 5 enables creating EGLImages for different planes
of a YUV buffer.  createImageFromName is still used to create the containing
__DRIimage, and createSubImage can then be used no that __DRIimage to create
__DRIimages that correspond to the y, u, and v planes (__DRI_IMAGE_FORMAT_R8)
or the uv planes (__DRI_IMAGE_FORMAT_RG88) for formats such as NV12 where
the u and v components are interleaved.  Packed formats such as YUYV etc
doesn't require any special treatment, we just sample those as a regular
ARGB texture.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>

Add the infrastructure required for this extension.  There is no
xserver support and no driver support yet.  Drivers can enable this be
advertising DRI2 version 4 and accepting the
__DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
__DRI_CTX_ATTRIB_RESET_STRATEGY attribute in create context.

Some additional Mesa infrastructure is needed before drivers can do
this.  The GL_ARB_robustness spec, which all Mesa drivers already
advertise, requires:

    "If the behavior is LOSE_CONTEXT_ON_RESET_ARB, a graphics reset
    will result in the loss of all context state, requiring the
    recreation of all associated objects."

It is necessary to land this infrastructure now so that the related
infrastructure can land in the xserver.  The xserver has very long
release schedules, and the remaining Mesa parts should land long, long
before the next xserver merge window opens.

v2: Expose robustness as a DRI2 extension rather than bumping
__DRI_DRI2_VERSION.

v3: Add a comment explaining why dri2->base.version >= 3 is also
required for GLX_ARB_create_context_robustness.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

This new gbm entry point allows writing data into a gbm bo.  The bo has
to be created with the GBM_BO_USE_WRITE flag, and it's only required to
work for GBM_BO_USE_CURSOR_64X64 bos.

The gbm API is designed to be the glue layer between EGL and KMS, but there
was never a mechanism initialize a buffer suitable for use with KMS
hw cursors.  The hw cursor bo is typically not compatible with anything EGL
can render to, and thus there's no way to get data into such a bo.

gbm_bo_write() fills that gap while staying out of the efficient
cpu->gpu pixel transfer business.

Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>

Add new format __DRI_IMAGE_FORMAT_XBGR8888 to __DRI_IMAGE.
HAL_PIXEL_FORMAT_RGBX_8888 now maps to __DRI_IMAGE_FORMAT_XBGR8888.

Signed-off-by: Sean V Kelley <sean.v.kelley@linux.intel.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

GBM needs the buffer format in order to communicate with DRM and clients
for things like scanout.

So track the DRI format requested in the various back ends and use it to
return the DRI format back to GBM when requested.  GBM will then map
this into the GBM surface type (which is in turn based on the DRM fb
format list).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

The entry point is supposed to validate that the EGLImage is suitable for
the passed in usage flags, but that was never implemented.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

The X server has limited throttle support on the server side,
but doing this in the client has some benefits:

1) X server throttling is per client. Client side throttling can be done
per drawable.

2) It's easier to control the throttling based on what client is run,
for example using "driconf".

3) X server throttling requires drm swap complete events.

So implement a dri2 throttling extension intended to be used by direct
rendering clients.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Michel Dänzer <michel@daenzer.net>

Add a new format token, __DRI_IMAGE_FORMAT_ABGR8888, to __DRI_IMAGE.  It
maps to MESA_FORMAT_RGBA8888_REV in core mesa or
PIPE_FORMAT_R8G8B8A8_UNORM in gallium.  The format is used by
translucent surfaces on Android.

Remove definition from egl_dri2.
Defining this is egl_dri2.h breaks as soon as
a new dri2 buffer token is added like with commit
4501a5d6e8.

CC: Ian Romanick <idr@freedesktop.org>
CC: Kristian Høgsberg <krh@bitplanet.net>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>

This new interface could set up context for OpenGL,
OpenGL ES1 and OpenGL ES2. It will be used by egl_dri2
driver.

Signed-off-by: Haitao Feng <haitao.feng@intel.com>