A hiz surface must be supplied to the hardware when rendering to a depth
buffer with hiz. There are three potential places to store that surface:
1. Allocate a larger intel_region for the depthbuffer, and let the
region's tail be the hiz surface.
2. Allocate a separate intel_region for hiz, and store it as
brw_context state.
3. Allocate a separate intel_region for hiz, and store it in
intel_renderbuffer.
We choose method 3.
Method 1 has not been chosen due to future complications it might cause
when requesting a DRI drawable's depth buffer attachment from X.
Method 2 has not been chosen because storing the hiz region apart from
the depth region makes lazy hiz/depth resolves difficult to implement.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad@chad-versace.us>
Given a format, is_hiz_depth_format() indicates if HiZ can be enabled on
a depthbuffer of that format.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>
... in intel_alloc_renderbuffer_storage(). The stencil buffer has quirky
pitch requirements, so its region allocation is a special case.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>
When hardware supports separate stencil, enable support for separate
depth/stencil texture formats in the table
intel_context.ctx.TextureFormatsSupported. If the hardware must use
separate stencil, then disable support for combined depth/stencil formats.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>
Prefer MESA_FORMAT_X8_Z24 over MESA_FORMAT_S8_Z24 for textures with
internal format GL_DEPTH_COMPONENT*.
i965 needs MESA_FORMAT_X8_Z24 for HiZ and separate stencil.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>
Add the following flags:
intel_context.has_separate_stencil
intel_context.must_use_separate_stencil
intel_context.has_hiz
The flags are currently set to false, and will be enabled for a given
chipset once the feature is completely implemented.
Since it may be some time before these features are completed, their
values can be overridden with environment variables INTEL_HIZ and
INTEL_SEPARATE_STENCIL. Valid values for these environment variables are
"0" and "1".
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chad Versace <chad@chad-versace.us>
... because that's not a safe thing to do. The request buffer is shared
storage among all threads, and after UnlockDisplay the 'req' pointer may
point into someone else's request.
NOTE: This is a candidate for the 7.10 branch.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Cayman is the RadeonHD 69xx series of GPUs. This adds support for
3D acceleration to the r600g driver.
Major changes:
Some context registers moved around - mainly MSAA and clipping/guardband related.
GPR allocation is all dynamic
no vertex cache - all unified in texture cache.
5-wide to 4-wide shader engines (no scalar or trans slot)
- some changes to how instructions are placed into slots
- removal of END_OF_PROGRAM bit in favour of END flow control clause
- no vertex fetch clause - TC accepts vertex or texture
Signed-off-by: Dave Airlie <airlied@redhat.com>
These don't need one, and I was seeing 0xff being returned and set in
the GPU registers with some tests.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Instead of using a giant switch statement with lots of code, use a
table to convert GL format enums to pipe formats.
Tested by running the old code next to the new and asserting that
the return value was the same for piglit tests.
We're doing a linear search, but if that ever appears to be too slow
the table could easily be sorted or hashed.
Certain applications (e.g., Bernina My Label, and the Windows
implementation of Processing language) destroy the device context used when
creating the frame-buffer, causing presents to fail because we were still
referring to the old device context internally.
This change ensures we always use the same HDC passed to the ICD
entry-points when available, or our own HDC when not available (necessary
only when flushing on single buffered visuals).
Since the SET_xxx and GET_xxx macros used to initialize the remap_table
have been replaced by inline functions, the missing late macro expansion
leads to driDispatchRemapTable not being redefined to remap_table, which
in turn causes the remap_table not to be setup properly.
This commit fixes the issue by moving the table redefinition after the
definition of driDispatchRemapTable but in front of the inline function
definitions.
Despite that negative values aren't sensible here, making this unsigned
is dangerous. Consider get_pointer_generic, which computes a value of
the form:
void *base + (int x * int stride + int y) * unsigned bpp
The usual arithmetic conversions will coerce the (x*stride + y)
subexpression to unsigned. Since stride can be negative, this is
disastrous.
Fixes at least the following piglit tests on Ironlake:
fbo/fbo-blit-d24s8
spec/ARB_depth_texture/fbo-clear-formats
spec/EXT_packed_depth_stencil/fbo-clear-formats
NOTE: This is a candidate for the 7.10 branch.
Reviewed-by: Chad Versace <chad.versace@intel.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
According to OpenGL 3.1 chapter 2.1.5 the representation without zero
should only be used for vertex attribute values, but not for textures
or frame-buffers.
The coordinate offsets set in the m1 header are for textureOffset;
they have nothing to do with textureGrad (TXD).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
The same as 3e43adef95 but for Gen7.
This doesn't quite fix GL_ARB_depth_texture/fbo-clear-formats; there's
still a 1 pixel wide black line on the right edge of the smaller squares.
The results were entirely wrong before, and are at least close now.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Since wayland 4bde293ff8109d55eeaee8732f5a6ee0c8cd4bd9 we cant
lookup visuals, as we dont receive the visual token events.
The format for pixmap-images thus has to default to argb for now.
GLES uses GL_APIENTRYP instead of GLAPIENTRYP, which breaks with the
latest API table generation code. This fixes the issue by emitting a
definition for GL_APIENTRYP when generating the GLES files.
This prevents the error
prog: for the -disable-mmx option: may only occur zero or one times!
when creating a new context after XCloseDisplay with DRI drivers linked
with a shared LLVM 2.8 library.
In particular, this fixes the case where a vertex shader only uses
generic vertex attributes (non-0th). Before, we were no-op'ing the
glDrawArrays/Elements().
This fixes the new piglit pos-array test.
NOTE: This is a candidate for the 7.10 branch.
Previously, always did unorm8->float/nonlinear-to-linear conversion (using
lookup table), then convert back to nonlinear (using the expensive math
func pow among others), and finally convert back to int (assuming caller
wants unorm8), because the float texture fetch function is used for getting
the actual texel values. This should probably all be changed at some point,
but for now simply enable the memcpy path also for srgb formats (but if for
instance swizzling is required, still the whole conversion will be done).
Clip distance is calculated each time vertex position is written
which is suboptiomal is some cases but very safe.
User clip planes are an obsolete feature anyway.
Every time number of clip planes increases, the vertex program
is recompiled.
That ensures no overhead in normal case (no user clip planes)
and reasonable overhead otherwise.
Fixes 3D windows in compiz, and reflection effect in neverball.
Also fixes compiz expo plugin when windows were dragged and each
window shown 3 times.
Chad Versace
Adam Jackson
Alex Deucher
Dave Airlie
Mike Kaplinskiy
Brian Paul
José Fonseca
Thierry Reding
Kenneth Graunke
pepp
Christian König
Benjamin Franzke
Thierry Reding
Roland Scheidegger
Kristian Høgsberg
Maxim Levitsky
Eric Anholt