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Makefile.template
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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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Implementation guidance by Michel Dänzer, final testing by Timo Aaltonen.
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Use the same input map handling for fftnl and vertex programs. It doesn't
enable any new functionality (should make it easy to support per-vertex
materials though), but the code is much cleaner.
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submit the vertex weights to hw, which will enable broken vertex programs
errorneously using them to work. Note however that this will only work
if glWeight is used, there is no code in mesa at all to deal with weight
vertex array (glWeightPointerARB).
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order leading to very bogus rendering (for instance WoW intro screen mentioned in #8250).
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and texture inputs to them. Not widely tested yet. This should eliminate all fallbacks due to vertex programs, except writes to back facing colors, or when exceeding a hw limit (12 temps, 12 attribs etc.).
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computation into the vertex program (not yet fixed for swtnl). Simplify (and correct) the VTX_TCL_OUTPUT_VTXFMT handling when using vertex programs, turns out it's solely driven by the needs of the past-vertex stage of the pipeline, this should fix lockups with ill-specified applications using vertex programs (for instance applications enabling fog but not writing to fog coord output will now get (conformant) undefined results instead of lockups).
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nearly the same as outlined in bug #4707, except it disables perspective correction for point sprites to make them actually work. And, separate the state atom into two as the tcl parameters would overwrite vertex program parameters when active. Also implement the GL_VERTEX_PROGRAM_POINT_SIZE_ARB option to make vertex programs outputting a point size work correctly (untested). Smooth points will still always be size 1. While here, enable gouraud shading for fog when using fog coord.
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vertex program code. Fix authors. Correct slightly wrong check to determine if ran out of temps. Simplify check to determine if ran out of max instructions. Correctly report used native temps. Always kick off program translation when ProgramStringNotify is called (otherwise the reported native resources used queried might be wrong).
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"gl_" to match other structs.
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make it easier to figure out why it won't compile...
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generic attribs cause a fallback, but otherwise it seems to work quite well. Passes all glean vertProg1 tests with the exception of the degnerated LIT case (which is a hw limitation), as well as runs the r200 render path of doom3/quake4 (1.1 patch needed for quake4). The code is heavily borrowed from the r300 driver as vertex programs encoding is almost identical. arb_vertex_program is not yet announced by default and still needs to be enabled via driconf.
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instead of 8k (the reasons why it was exactly 8k are unclear). Add register defines, sanity code, fix potential issue with wrong statechange order when disabling fragment programs.
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- use macros to access and modify render inputs bit-field;
- un-alias generic vertex attributes for ARB vertex calls;
- use MAX_VERTEX_PROGRAM_ATTRIBS (NV code) or MAX_VERTEX_ATTRIBS
(ARB code) in place of VERT_ATTRIB_MAX;
- define VERT_ATTRIB_GENERIC0..15 for un-aliased vertex
attributes for ARB_vertex_shader;
- fix generic attribute index range check in arbprogparse.c;
- interface GLSL varyings between vertex and fragment shader;
- use 64-bit optimised bitset (bitset.h) for render inputs;
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(reported by Jim Duchek). Fix some potential problems with strict-aliasing with r200 and radeon drivers in *UpdateViewportOffset, *PolygonOffset and *UpdateWindow functions (some compiler warnings about strict-aliasing remain in the codegen vertex code, and there may be more problems unnoticed by the compiler).
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- Makes all three drivers use the same screen structure and setup code, with a
few ifdefs for the separate compilation to deal with symbols not being
available to all drivers and the fact that we have no mechanism for dealing
with different config options for different chip families in the same driver.
These issues should be dealt with later.
- Introduces IS_R[123]00_CLASS(radeonScreenPtr) macro for code for taking
different paths depending on the general class of chipset.
- Adds many new R300-class PCI IDs, though not all those listed in
radeon_driver.c.
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point sprite primitive.
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code is in the new file r200_fragshader.c. Reverse engeneered by Dave Airlie and me
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Use driRenderbuffer's offset, pitch fields in the span routines.
Remove the SetBuffer driver function.
Consolidate the code for setting CTX_RB3D_COLOROFFSET and CTX_RB3D_COLORPITCH
state in new radeonUpdateDrawBuffer() function.
Old code is surrounded by #if 000 / #endif, temporarily.
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texture sampling and texture environment, optimize away texture sampling for units if the result is not used, always emit the env instructions in-order and try to eliminate GL_REPLACE env instructions.
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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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remove those descriptions and the corresponding bits on r200, where they're no
longer used.
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performance up to 15% in texture-intensive applications. Convert the driver to use the correct blit format and blit width instead of fixed blit format and blit width when uploading textures to make it work.
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fast z clear and z buffer compression are supported for now, hierarchical-z is not. Still problems with multiple apps and z/stencil readback, which is why hyperz is disabled per default. Also add the new point sprite packet drm 1.13 accepts to the sanity code.
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fog coords (it seems the chip cannot do fog factor computation when not using fragment depth as fog coord source). vtxfmt uses fallback for now (most code present but some magic would be needed if replaying vertices is necessary later on).
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coordinate generation. Original code by Roland Schiedegger, with changes by
myself. While here, ensure that the swtcl path does tnl_install_attrs enough
when fog/specular are being (en/dis)abled.
Notable effects:
- projtex test works with TCL and is closer with swtcl (Bugzilla #1461)
- 8/9 squares work in texgenmix instead of 3.
- texcyl "reflect" mode works (GL_SPHERE_MAP is now a fallback -- unclear if the
hardware can actually support it).
- flickering in doom3 replaced by just plain darkness.
- blocktube fixed (Bugzilla #984)
- fixes stex3d
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state in a ready-to-emit cmdbuf, which avoids the issue Nicolai Haehnle reported
where the check() could return differently during backup-and-emit than it should
have if it were called at the right time. Move the lit emission before most of
the TCL state emission on r200, which fixes neverball issues.
Tested with: r100/r200 with neverball, tuxracer, chromium, quake3, ipers
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a new cmdbuf, to ensure that state wasn't lost across UNLOCK/LOCK pairs (in the
case of context switching). This was rather inefficient. Instead, after
flushing a cmdbuf, mark the state as needing to be saved on UNLOCK. Then, at
the beginning of flushing a cmdbuf, if we actually have lost the context, go
back and emit a new cmdbuf with the full set of state, before continuing with
the cmdbuf flush. Also, remove the dirty/clean atom lists, since atoms are
emitted in a fixed order these days, and go with a simpler single list.
Provides a 14% improvement in ipers performance in my tests, along with other
apps.
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errors on r100 and rendering errors and hangs on r200 (same for R100 without
OLD_PACKETS).
If a command buffer filled after some state (EmitState or a VBPNTR write) was
emitted, the lock was grabbed, the buffer flushed, a new buffer prepared, and
the lock dropped. Another client could come in, set its own state as part of
rendering, and when the first client flushed the rendering commands depending
on the previous state, it got the 2nd client's state. This is fixed by checking
for enough space before beginning a set of state emits and rendering, and
flushing the buffer first if so. This guarantees that the buffer won't wrap.
Also, move the "lost_context = 1" from the end of cmdbuf flushing to
UNLOCK_HARDWARE for clarity (at a minimum) that any time the lock is dropped,
state may get overwritten. We don't have enough information at the point of the
LOCK_HARDWARE to reset our state to the last UNLOCK_HARDWARE point in the case
that we did lose our context, but saving the information to rebuild that state
may be a useful optimization (ipers data suggests up to 5%).
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workarounds only for r200, not derivatives.
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drm_handle_t, drm_context_t, drm_drawable_t, drm_magic_t.
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unused R200_OLD_PACKET macro
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GL_EXT_blend_color. Remove support for GL_EXT_blend_logic_op (cannot be supported together with blend_equation_separate unless a software fallback would be added).
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textures. progs/demos/cubemap and progs/demos/stex3d seem to work
correctly at all tcl_mode settings. x86 / SSE codegen is currently
disabled.
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of glx/mini. removes glx/mini/drm.h glx/mini/sarea.h
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driver (our r200 driver basically didn't do this at all, maybe got lost
along the way?)
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by calling _mesa_init_driver_functions() and then plugging in the driver-
specific functions.
In particular, make sure ctx->Driver.NewTextureObject points to the
appropriate driver function so that _all_ texture objects are augmented
with the driver-specific data.
Put in a bunch of assertions in the texture-related driver functions that
texObj->DriverData is valid. Remove old dead code in near future.
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