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Each array element is now a BUFFER_x token rather than a BUFFER_BIT_x bitmask.
The number of active color buffers is specified by _NumColorDrawBuffers.
This builds on the previous DrawBuffer changes and will help with drivers
implementing GL_ARB_draw_buffers.
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* Fix crash at context creation in most drivers supporting vblank.
* Don't pass vblank sequence or flags to functions that get passed the drawable
private already.
* Attempt to initialize vblank related drawable private fields just once
per drawable. May need more work in some drivers.
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Consolidate support for synchronizing to and retrieving vblank counters. Also
fix the core vblank code to return monotonic MSC counters, which are required
by some GLX extensions. Adding support for multiple pipes to a low level
driver is fairly easy, the Intel 965 driver provides simple example code (see
intel_buffers.c:intelWindowMoved()).
The new code bumps the media stream counter extension version to 2 and adds a
new getDrawableMSC callback. This callback takes a drawablePrivate pointer,
which is used to calculate the MSC value seen by clients based on the actual
vblank counter(s) returned from the kernel. The new drawable private fields
are as follows:
- vblSeq - used for tracking vblank counts for buffer swapping
- vblFlags - flags (e.g. current pipe), updated by low level driver
- msc_base - MSC counter from the last time the current pipe changed
- vblank_base - kernel DRM vblank counter from the last time the pipe changed
Using the above variables, the core vblank code (in vblank.c) can calculate a
monotonic MSC value. The low level DRI drivers are responsible for updating
the current pipe (by setting VBLANK_FLAG_SECONDARY for example in vblFlags)
along with msc_base and vblank_base whenever the pipe associated with a given
drawable changes (again, see intelWindowMoved for an example of this).
Drivers should fill in the GetDrawableMSC DriverAPIRec field to point to
driDrawableGetMSC32 and add code for pipe switching as outlined above to fully
support the new scheme.
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This pulls the top level createNewScreen entry point out of the drivers
and rewrites __driUtilCreateNewScreen in dri_util.c to be the new entry point.
The change moves more logic into the common/ layer and changes the
createNewScreen entry point to only be defined in one place.
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The screenConfigs field of __DRIscreen points back to the containing
__GLXscreenConfigs struct. This is a serious abstraction violation; it
assumes that the loader is libGL and that there *is* a __GLXscreenConfigs
type in the loader.
Using the containerOf macro, we can get from the __DRIscreen pointer to
the containing __GLXscreenConfigs struct, at a place in the stack
where the above is a valid assumption. Besides, the __DRI* structs shouldn't
hold state other than the private pointer.
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Many DRI entry points took a __DRInativeDisplay pointer and a screen
index as arguments. The only use for the native display pointer was to
pass it back to the loader when looking up the __DRIscreen for the given
screen index.
Instead, let's just pass in the __DRIscreen pointer directly, which
let's drop the __DRInativeDisplay type and the getScreen function.
The assumption is now that the loader will be able to retrieve context
from the __DRIscreen pointer when necessary.
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The clamping for these values depends on whether we're drawing AA or non-AA
points, lines. Defer clamping until drawing time. Drivers could compute and
keep clamped AA and clamped non-AA values if desired.
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Instead of separate fog/specular/texcoord/varying code, just treat all of
them as generic attributes. Simplifies the point/line/triangle functions.
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ARB_vertex_buffer_object looks like a useful extension even for old chips.
The drivers should not need any code to be able to use this extension since
they just use mesa's vbo code anyway.
Newly enabled for i810, mach64, mga, r128, radeon, savage, sis and unichrome.
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Conflicts:
src/mesa/main/context.c
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Use _mesa_reference_framebuffer() and _mesa_unreference_framebuffer() functions
to be sure reference counting is done correctly. Additional assertions are
done too. Note _mesa_dereference_framebuffer() renamed to "unreference" as
that's more accurate.
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Mostly:
- update #includes
- update STATE_* token code
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into vbo-0.2
Conflicts:
src/mesa/array_cache/sources
src/mesa/drivers/dri/i965/brw_context.c
src/mesa/drivers/dri/i965/brw_draw.c
src/mesa/drivers/dri/i965/brw_fallback.c
src/mesa/drivers/dri/i965/brw_vs_emit.c
src/mesa/drivers/dri/i965/brw_vs_tnl.c
src/mesa/drivers/dri/mach64/mach64_context.c
src/mesa/main/extensions.c
src/mesa/main/getstring.c
src/mesa/tnl/sources
src/mesa/tnl/t_save_api.c
src/mesa/tnl/t_save_playback.c
src/mesa/tnl/t_vtx_api.c
src/mesa/tnl/t_vtx_exec.c
src/mesa/vbo/vbo_attrib.h
src/mesa/vbo/vbo_exec_api.c
src/mesa/vbo/vbo_save_api.c
src/mesa/vbo/vbo_save_draw.c
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mach64 uses its own set of texture memory management routines which are buggy,
running a second DRI client kills the first one. This patch ports mach64 code
to the stock dri texture managment code.
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RENDER acceleration uses texturing, thus when RENDER acceleration is enabled,
the mach64 DRI driver should restore texture state when acquiring the DRI lock.
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un-break strict-aliasing rules
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The coordinates need to be computed after we've got the hw lock.
Code updated to:
1. Ignore all/x/y/width/height/ params passed to Clear func.
2. Pass 0,0,0,0,0 to _swrast_Clear() until they're totally removed.
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default/fallback functions are already plugged in by the call to
_mesa_init_driver_functions().
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This is already done by the preceeding call to _mesa_init_driver_functions()
which plugs in default functions like that.
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https://bugs.freedesktop.org/show_bug.cgi?id=6242
Patch by George Sapountzis: https://bugs.freedesktop.org/attachment.cgi?id=6271
Update to new mach64 DRM 2.0.0 with private DMA buffers.
Handle EAGAIN in mach64FireBlitLocked: call drmCommandWrite up to
MACH64_TIMEOUT times when EAGAIN is returned.
Also handle EAGAIN in mach64FlushVerticesLocked.
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This prevents the first wait for vertical blank from timing out when the X
server has been running for a long time.
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in __driCreateNewScreen_20050727 resulted in crashing in dispatch.
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_BaseFormat to be consistant with gl_renderbuffer.
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call driUpdateFramebufferSize() when window size/position changes.
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ctx->Driver.Stencil*Separate() functions.
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driNewRenderbuffer().
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Add additional checks for the *DRIRec info structure passed in from the
device driver. This ensures that things fallback to indirect rendering if
the DDX driver has had modifications (i.e. removal of the drmAddress field).
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Therefore, drivers should not require it to run.
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_glapi_add_entrypoint has been replaced by a new routine called
_glapi_add_dispatch. This new routine dynamically assignes dispatch offsets
to functions added. This allows IHVs to add support for extension functions
that do not have assigned dispatch offsets.
It also means that a driver has no idea what offset will be assigned to a
function. The vast majority of the changes in this commit account for that.
An additional table, driDispatchRemapTable, is added. Functions not in the
Linux OpenGL ABI (i.e., anything not in GL 1.2 + ARB_multitexture) has a
fixed offset in this new table. The entry in this table specifies the
offset in of the function in the real dispatch table.
The internal interface was also bumped from version 20050725 to 20050727.
This has been tested with various programs in progs/demos on:
radeon (Radeon Mobility M6)
r128 (Rage 128 Pro)
mga (G400)
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that are currently obtained via glXGetProcAddress and all of the XF86DRI
functions are replaced with a funciton table. This table will be passed to
__driCreateNewScreen.
One of the functions in the table is getProcAddress. This allows some
loaders to expose functionality not in all loaders. This will be immediatly
used for glxEnableExtension (formerly known to drivers as
__glXScrEnableExtension). libGL (and in the future libglx) expose this
function so that drivers can enable GLX extensions. libEGL should exposed
eglEnableExtension to enable EGL extensions. The same function cannot be
used for both because the extensions have different names and (possibly)
different semantics. Drivers can optionally use one, both, or neither.
The key parts are in the __DRIinterfaceMethodsRec structure in
dri_interface.h. A pointer to one of these structures is passed into
__driCreateNewScreen. Because of this, the version of the API is bumped to
20050725. Since the previous version(s) were never in a release, their
existance is erased.
I was actually a little surprised by how much code this cuts from the
drivers. A lot of glXGetProcAddress calls disappear, and a lot of
version checks go with them. Nice.
The one thing I'm not sure of is removing __glXInitialize. For some
reason that function was in the glXGetProcAddress table, but *nothing*
in the Mesa tree used it. Did something with DRI conf. use this
function? It seems odd...
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1,402 lines of code to be removed from Mesa (drivers and libGL). The
big winner is dri_util.c.
Primary changes are:
1. Remove all "deprecated" entry-points from the various structures in
dri_interface.h.
2. Rename the remaining fields to removed "version numbers." So,
bindContext3 becomes bindContext. Functions with "New" in the name
(e.g., CreateNewContext) were *not* changed, but that is an option.
Having "New" in the name is less annoying to me than having "3" in the name.
3. Remove all compatibility code that handles cases where the driver or
the loader is too old to support the latest interfaces.
4. Append the API version to the __driCreateNewScreen function name.
This is currently done by hand. In the future (i.e., the next time we
make an incompatible change to the interface) we'll want to come up with
a better way to do this. This prevents old loaders from being able to load
new (incompatible) drivers.
5. Bump the API version to 20050722. All drivers (by way of dri_util.c)
require this version.
6. All drivers are *required* to expose GLX_SGIX_fbconfig and
GLX_OML_swap_method (or the moral equivalents). Support for these
functions in implicit in the use of the "new" interface.
7. Some cases still exist that need to be compiled differently in a loader
or core Mesa versus in a driver. These are identified by the define
IN_DRI_DRIVER.
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Remove old (pre-renderbuffer) span code instead of converting that too. Remove this old code from mach64 (the dead code was not fully converted to spantmp2 previously) too.
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individual drivers and put them in common code. It is still possible for a driver to define its own macros if it has special needs. This affects CLIPPIXEL, CLIPSPAN, HW_CLIPLOOP, HW_ENDCLIPLOOP, and for drivers using the spantmp2 template also GET_SRC_PTR and GET_DST_PTR.
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device-specific code. A new Python script
(src/mesa/glapi/extension_helper.py) generates a list of all
entry-points for all known extensions. Each driver the selects only
the extensions that it needs and enables the via either
driInitExtensions or driInitSingleExtension.
This code has been compile-tested on a drivers, but has only been
run-tested on mga and i915 (on i830 hardware).
These changes were discussed at length on the mesa3d-dev mailing list.
http://marc.theaimsgroup.com/?t=111947074700001&r=1&w=2
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add pretty descriptions of the bits. GC one of the bits that was unused.
Also, now only the first thing triggering a fallback and the last thing
requiring one do the debug output. This also matches other drivers.
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factor of 5+ improvement in no_rast glxgears and 2.3 in no_rast quake3 (n=1,
320x240, 16bpp, low qualities, 1ghz p3)
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