| Commit message (Collapse) | Author | Age | Files | Lines |
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Page flipping generates an invalidate event every frame, causing reallocations
of all private resources (MSAA and depth-stencil).
Reusing the resources may improve performance (especially under memory
pressure).
Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
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We have to use pipe->blit, not resource_copy_region, so that the read buffer
is resolved if it's multisampled. I also removed the CPU-based copying,
which just did format conversion (obsoleted by the blit).
Also, the layer/slice/face of the read buffer is taken into account (this was
ignored).
Last but not least, the format choosing is improved to take float and integer
read buffers into account.
Reviewed-by: Brian Paul <[email protected]>
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CopyPixels, just as DrawPixels, should count the samples that passed
depth test.
Reviewed-by: Brian Paul <[email protected]>
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There were 2 issues with it:
- resource_copy_region doesn't allow different sample counts of both src
and dst, which can occur if we blit between a window and a FBO, and
the window has an MSAA colorbuffer and the FBO doesn't.
(this was the main motivation for using pipe->blit)
- blitting from or to a non-zero layer/slice/face was broken, because
rtt_face and rtt_slice were ignored.
blit_copy_pixels is now used even if the formats and orientation of
framebuffers don't match.
Reviewed-by: Brian Paul <[email protected]>
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We did downsample (=resolve) MSAA resources to make ReadPixels work with MSAA
GLX visuals, which was enough for read-only color-only transfers.
This commit makes write color transfers and depth-stencil transfers work
in a similar manner. It does downsampling in transfer_map and upsampling
in transfer_unmap.
Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
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There isn't any difference between 32_FLOAT and 32_*INT in vertex fetching.
Both of them don't do any format conversion.
Reviewed-by: Brian Paul <[email protected]>
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We can use the fragment shader TGSI property WRITES_ALL_CBUFS.
Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
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Reviewed-by: Chad Versace <[email protected]>
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Previously we would generate uniform locations as (slot << 16) +
array_index. We do this to handle applications that assume the location
of a[2] will be +1 from the location of a[1]. This resulted in every
uniform location being at least 0x10000. The OpenGL 4.3 spec was
amended to require this behavior, but previous versions did not require
locations of array (or structure) members be sequential.
We've now encountered two applications that assume uniform values will
be "small." As far as we can tell, these applications store the GLint
returned by glGetUniformLocation in a int16_t or possibly an int8_t.
THIS BEHAVIOR IS NOT GUARANTEED OR IMPLIED BY ANY VERSION OF OpenGL.
Other implementations happen to have both these behaviors (sequential
array elements and small values) since OpenGL 2.0, so let's just match
their behavior.
Fixes "3D Bowling" on Android.
NOTE: This is a candidate for stable release branches.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-and-tested-by: Chad Versace <[email protected]>
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This is used by _mesa_uniform_merge_location_offset and
_mesa_uniform_split_location_offset to determine how the base and offset
are packed. Previously, this value was hard coded as (1U<<16) in those
functions via the shift and mask contained therein. The value is still
(1U<<16), but it can be changed in the future.
The next patch dynamically generates this value.
NOTE: This is a candidate for stable release branches.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-and-tested-by: Chad Versace <[email protected]>
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_mesa_uniform_{merge,split}_location_offset
This will be used in the next commit.
NOTE: This is a candidate for stable release branches.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-and-tested-by: Chad Versace <[email protected]>
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Use new util_fill_box helper for util_clear_render_target.
(Also fix off-by-one map error.)
v2: handle non-zero z correctly in new helper
Reviewed-by: Jose Fonseca <[email protected]>
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This patch adds code to place mcs_state into INTEL_MCS_STATE_RESOLVED
for miptrees that are capable of supporting fast color clears. This
will have no effect on buffers that don't undergo a fast color clear;
however, for buffers that do undergo a fast color clear, an MCS
miptree will be allocated (at the time of the first fast clear), and
will be used thereafter.
Reviewed-by: Eric Anholt <[email protected]>
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In certain circumstances the memory region underlying a miptree is
shared with other miptrees, or with other code outside Mesa's control.
This happens, for instance, when an extension like GL_OES_EGL_image or
GLX_EXT_texture_from_pixmap extension is used to associate a miptree
with an image existing outside of Mesa.
When this happens, we need to disable fast color clears on the miptree
in question, since there's no good synchronization mechanism to ensure
that deferred clear writes get performed by the time the buffer is
examined from the other miptree, or from outside of Mesa.
Fortunately, this should not be a performance hit for most
applications, since most applications that use these extensions use
them for importing textures into Mesa, rather than for exporting
rendered images out of Mesa. So most of the time the miptrees
involved will never experience a clear.
v2: Rework based on the fact that we have decided not to use an
accessor function to protect access to the region.
Reviewed-by: Eric Anholt <[email protected]>
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Resolve color buffers that have been fast-color cleared:
1. before texturing from the buffer (brw_predraw_resolve_buffers())
2. before using the buffer as the source in a blorp blit
(brw_blorp_blit_miptrees())
3. before mapping the buffer's miptree (intel_miptree_map_raw(),
intel_texsubimage_tiled_memcpy())
4. before accessing the buffer using the hardware blitter
(intel_miptree_blit(), do_blit_bitmap())
v2: Rework based on the fact that we have decided not to use an
accessor function to protect access to the region.
Reviewed-by: Eric Anholt <[email protected]>
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We already had code in intel_downsample_for_dri2_flush() for
downsampling front and back buffers when multisampling was in use.
This patch extends that function to perform fast color clear resolves
when necessary.
To account for the additional functionality, the function is renamed
to simply intel_resolve_for_dri2_flush().
Reviewed-by: Eric Anholt <[email protected]>
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This patch implements the "render target resolve" blorp operation.
This will be needed when a buffer that has experienced a fast color
clear is later used for a purpose other than as a render target
(texturing, glReadPixels, or swapped to the screen). It resolves any
remaining deferred clear operation that was not taken care of during
normal rendering.
Fortunately not much work is necessary; all we need to do is scale
down the size of the rectangle primitive being emitted, run the
fragment shader with the "Render Target Resolve Enable" bit set, and
ensure that the fragment shader writes to the render target using the
"replicated color" message. We already have a fragment shader that
does that (the shader that we use for fast color clears), so for
simplicity we re-use it.
Reviewed-by: Eric Anholt <[email protected]>
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The fragment shaders that to do color clears will be re-used to
perform so-called "render target resolves" (the resolves associated
with fast color clears). To prepare for that, this patch expands the
class hierarchy for blorp params by adding
brw_blorp_const_color_params (which will be used for all blorp
operations where the fragment shader outputs a constant color).
Some other data structures and functions were also renamed to use
"const_color" nomenclature where appropriate.
Reviewed-by: Eric Anholt <[email protected]>
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Since we defer allocation of the MCS miptree until the time of the
fast clear operation, this patch also implements creation of the MCS
miptree.
In addition, this patch adds the field
intel_mipmap_tree::fast_clear_color_value, which holds the most recent
fast color clear value, if any. We use it to set the SURFACE_STATE's
clear color for render targets.
v2: Flag BRW_NEW_SURFACES when allocating the MCS miptree. Generate a
perf_debug message if clearing to a color that isn't compatible with
fast color clear. Fix "control reaches end of non-void function"
build warning.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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On Gen7+, MCS buffers are used both for compressed multisampled color
buffers and for "fast clear" of single-sampled color buffers.
Previous to this patch series, we didn't support fast clear, so we
only used MCS with multisampled bolor buffers.
As a first step to implementing fast clears, this patch modifies the
code that sets up SURFACE_STATE so that it configures the MCS buffer
whenever it is present, regardless of whether we are multisampling or
not.
Reviewed-by: Eric Anholt <[email protected]>
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This patch includes code to update the fast color clear state
appropriately when rendering occurs. The state will also need to be
updated when a fast clear or a resolve operation is performed; those
state updates will be added when the fast clear and resolve operations
are added.
v2: Create a new function, intel_miptree_used_for_rendering() to
handle updating the fast color clear state when rendering occurs.
Reviewed-by: Eric Anholt <[email protected]>
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This patch ifdefs out intel_mipmap_tree::mcs_mt when building the i915
(pre-Gen4) driver (MCS buffers aren't supported until Gen7, so there
is no need for this field in the i915 driver). This should make it a
bit easier to implement fast color clears without undue risk to i915.
Reviewed-by: Eric Anholt <[email protected]>
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When processing a buffer received from the X server,
intel_process_dri2_buffer() examines intel_region::name to determine
whether it's received a brand new buffer, or the same buffer it
received from the X server the last time it made a request.
However, this didn't work properly, because in the call to
intel_miptree_create_for_dri2_buffer(), we create a fresh intel_region
object to represent the buffer, and this was causing us to forget the
buffer's previous name.
This patch fixes things by copying over the region name when creating
the fresh intel_region object.
At the moment, this is just a minor performance optimization.
However, when fast color clears are added, it will be necessary to
ensure that the fast color clear state for a buffer doesn't get
discarded the next time we receive that buffer from the X server.
Reviewed-by: Eric Anholt <[email protected]>
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There is really nothing in struct intel_bo, and having it alias drm_intel_bo
makes the winsys impose almost zero overhead.
We can make the overhead gone completely by making the functions static
inline, if needed.
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Move functions around to match the order of the declarations in the header.
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The motivation is to kill tiling and pitch in struct intel_bo. That requires
us to make tiling and pitch not queryable, and be passed around as function
parameters.
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We are moving toward making struct intel_bo alias drm_intel_bo. As a first
step, we cannot have function tables.
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buf->bo_size is readily avaiable, no need to go via buf->bo->get_size().
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Merge the bodies to tex_create_bo/buf_create_bo respectively.
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See two commits ago for the rationale. This allows us to delete the
whole gen7_cc_state.c file.
This does move these commands before the depth stall flushes from
brw_emit_depthbuffer, which may be a problem. The documentation for
3DSTATE_DEPTH_BUFFER mentions that depth stall flushes are required
before changing any depth/stencil buffer state, but explicitly lists
3DSTATE_DEPTH_BUFFER, 3DSTATE_HIER_DEPTH_BUFFER, 3DSTATE_STENCIL_BUFFER,
and 3DSTATE_CLEAR_PARAMS. It does not mention this particular packet
(_3DSTATE_DEPTH_STENCIL_STATE_POINTERS).
No observed Piglit regressions on Sandybridge or Ivybridge.
Together with the last two commits, this makes a cairo-gl benchmark
faster by 0.324552% +/- 0.258355% on Ivybridge. No statistically
significant change on Sandybridge. (Thanks to Eric for the numbers.)
Signed-off-by: Kenneth Graunke <[email protected]>
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See the previous commit for the rationale.
Signed-off-by: Kenneth Graunke <[email protected]>
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Previously, we would:
1. Emit the new indirect state.
2. Flag CACHE_NEW_BLEND_STATE.
3. Rely on later state atoms to notice CACHE_NEW_BLEND_STATE and emit a
pointer to the new indirect state.
This is rather cumbersome: it requires two state atoms instead of one,
and there's a strict ordering dependency in the list. Plus, the code
gets spread across two functions (or even files in the case of Gen7+).
Gen7+ has a packet to update just the blend state pointer, so it makes a
lot of sense to simply emit that right away. Gen6 has a combined packet
which updates blending, the color calculator, and depth/stencil state;
however, each can still be modified independently.
This drops the Gen6 micro-optimization where we tried to only emit one
packet that changed all three states. State updates are pretty cheap.
CACHE_NEW_BLEND_STATE is no longer necessary, so drop it.
Signed-off-by: Kenneth Graunke <[email protected]>
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Works similarly to clip distance. If the cull distance is negative
for all vertices against a specific plane then the primitive
is culled.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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cull distance is analogous to clip distance. If a register is
given this semantic, then the values in it are assumed to be a
float32 distance to a plane. Primitives will be completely
discarded if the plane distance for all of the vertices in
the primitive are < 0.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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We need to figure out the number of invocations of the clipper
before the emit, because in the emit we are after clipping
where the number of primitives will be equal to number of clipper
invocations minus the clipped primitives. So our computations
were always off by the number of clipped primitives.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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Draw depended on clip_plane_enable being set in the rasterizer
to use clipdistance registers for clipping. That's really
unfriendly because it requires that rasterizer state to have
variants for every shader out there. Instead of depending on
the rasterizer lets extract the info from the available state:
if a shader writes clipdistance then we need to use it and we
need to clip using a number of planes equal to the number
of writen clipdistance components. This way clipdistances
just work.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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we were always fetching the info from the vertex shader, but if
geometry shader is present it should be used as the source of
that info.
Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
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This reverts commit 6c966ccf07bcaf64fba1a9b699440c30dc96e732.
Apparently causes GPU hangs.
Conflicts:
src/mesa/drivers/dri/i965/brw_state.h
src/mesa/drivers/dri/i965/brw_state_upload.c
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Fixes piglit texture-packed-formats regression. We need to implement
more XBGR formats here eventually, but many are UINT/SINT formats
which swrast doesn't handle yet anyway (integer textures).
Bugzilla https://bugs.freedesktop.org/show_bug.cgi?id=64935
Reviewed-by: Jose Fonseca <[email protected]>
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And add a static assert for the future.
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Set env var RADEON_VA=0 to disable VM on Cayman/Trinity.
Useful for debugging.
Note: this is a candidate for the 9.1 branch.
Signed-off-by: Alex Deucher <[email protected]>
Reviewed-by: Tom Stellard <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
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Having figured out what was going on with piglit fbo-depth copypixels
GL_DEPTH_COMPONENT32F (falling all the way back to swrast on CopyPixels to
a float depth buffer), I'm not inclined to fix the problem currently but
it seems worth saving someone else the debug time.
Reviewed-by: Matt Turner <[email protected]>
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We do a lot of multiplies by 3 or 4 for skinning shaders, and we can avoid
the sequence if we just move them into the right argument of the MUL.
On pre-IVB, this means reliably putting a constant in a position where it
can't be constant folded, but that's still better than MUL/MACH/MOV.
Improves GLB 2.7 trex performance by 0.788648% +/- 0.23865% (n=29/30)
v2: Fix test for pre-sandybridge.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]> (v1)
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This is a trivial port of 1d6ead38042cc0d1e667d8ff55937c1e32d108b1 from
the FS.
No significant performance difference on trex (misplaced the data, but it
was about n=20).
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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This is different from how we do it in the FS - we are using MAD even when
some of the args are constants, because with the relatively unrestrained
ability to schedule a MOV to prepare a temporary with that data, we can
get lower latency for the sequence of instructions.
No significant performance difference on GLB2.7 trex (n=33/34), though it
doesn't have that many MADs. I noticed MAD opportunities while reading
the code for the DOTA2 bug.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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