intel: Support mapping multisample miptrees

Add two new functions: intel_miptree_{map,unmap}_multisample, to which
intel_miptree_{map,unmap} dispatch. Only mapping flat, renderbuffer-like
miptrees are supported.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Refactor use of intel_miptree_map

Move the opencoded construction and destruction of intel_miptree_map into
new functions, intel_miptree_attach_map and intel_miptree_release_map.
This patch prevents code duplication in a future commit that adds support
for mapping multisample miptrees.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Refactor intel_miptree_map/unmap

Move the body of intel_miptree_map into a new function,
intel_miptree_map_singlesample. Now intel_miptree_map dispatches to the
new function. A future commit adds a multisample variant.

Ditto for intel_miptree_unmap.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

i965: Mark needed downsamples for msaa winsys buffers

Add function intel_renderbuffer_set_needs_downsample. It is a no-op
except on multisample winsys buffers shared with DRI2.

Mark the needed downsamples with the new function at two locations:
    - Immediately after drawing is complete.
    - After blitting.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Define functions for up/downsampling on miptrees

Flesh out the stub functions intel_miptree_{up,down}sample.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

i965: Add function brw_blorp_blit_miptrees

Define a function, brw_blorp_blit_miptrees, that simply wraps
brw_blorp_blit_params + brw_blorp_exec with C calling conventions. This
enables intel_miptree.c, in a following commit, to perform blits with
blorp for the purpose of downsampling multisample miptrees.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Allocate miptree for multisample DRI2 buffers

Immediately after obtaining, with DRI2GetBuffersWithFormat, the DRM buffer
handle for a DRI2 buffer, we wrap that DRM buffer handle with a region and
a miptree. This patch additionally allocates an accompanying multisample
miptree if the DRI2 buffer is multisampled.

Since we do not yet advertise multisample GL configs, the code for
allocating the multisample miptree is currently inactive.

This patch adds the following fields to intel_mipmap_tree:
    singlesample_mt
    needs_downsample
and the following function stubs:
    intel_miptree_downsample
    intel_miptree_upsample

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Refactor creation of hiz and mcs miptrees

Move the logic for creating the ancillary hiz and mcs miptress for winsys
and non-texture renderbuffers from intel_alloc_renderbuffer_storage to
intel_miptree_create_for_renderbuffer. Let's try to isolate complex
miptree logic to intel_mipmap_tree.c.

Without this refactor, code duplication would be required along the
intel_process_dri2_buffer codepath in order to create the mcs miptree.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Set num samples for winsys renderbuffers

Add a new param, num_samples, to intel_create_renderbuffer and
intel_create_private_renderbuffer.

No multisample GL config is yet advertised, so the value of num_samples is
currently 0.  For server-owned winsys buffers, gl_renderbuffer::NumSamples
is not yet used.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com> (v1)
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Refactor quantize_num_samples

Rename quantize_num_samples to intel_quantize_num_samples and change the
first param from struct intel_context* to struct intel_screen*. The
function will later be used by intelCreateBuffer, which is not bound to
any context but is bound to a screen.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com> (v1)
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

intel: Update stale comment for intel_miptree_slice::map

The comment referred to intel_tex_image_map/unmap, but should more
accurately refer to intel_miptree_map/unmap.

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

i965: add more Haswell PCI IDs

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

egl: remove redundant PFNEGLQUERYSTREAMTIMEKHRPROC typedef

This typedef is present earlier in the header and isn't part of the
EGL_KHR_stream_cross_process_fd extension.  Looks like a Khronos glitch.

softpipe: fix loop limit for tex_cache[] array

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=53199

st/mesa: Fix a potential memory leak in get_mesa_program.

Fixes resource leak defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: José Fonseca <jfonseca@vmware.com>

gallivm: Add constructor for raw_debug_ostream.

Fixes uninitialized scalar field defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: José Fonseca <jfonseca@vmware.com>

docs: update ARB_debug_output status to DONE

docs: Add OpenGL 4.3 requirements

v2: Note that GLSL 4.3 has not been started, and that
ARB_compute_shader has been started in Gallium drivers.

Signed-off-by: Jason Wood <sandain@hotmail.com>
Signed-off-by: Brian Paul <brianp@vmware.com>

egl: Import eglext.h version 14

This is necessary for EGL_KHR_create_context work (including writing
piglit tests).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

egl: Replace KHR_surfaceless_* extensions with KHR_surfaceless_context

KHR extension name is reserved for Khronos ratified extensions, and there is
no such thing as EGL_KHR_surfaceless_{gles1,gles2,opengl}.  Replace these
three extensions with EGL_KHR_surfaceless_context since that extension
actually exists.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

egl_dri2: Refactor dereference of dri2_ctx_shared

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

egl_dri2: Remove swrast version >= 2 checks

Since support for swrast version 2 was added (f55d027a), it has also been
required.  In swrast_driver_extensions, version 2 is set for __DRI_SWRAST
extension.  Remove the spurious version checks sprinked through the code.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

dri2: Fix bug in attribute handling for non-desktop OpenGL contexts

Previously an error would be generated if any attributes were specified when
creating a non-desktop OpenGL context.  This was a mistake, and it will
prevent old drivers from working with new EGL libraries that add support for
the createContextAttribs interface.  Instead, match the behavior of
EGL_KHR_create_context: allow versions that make sense, reject non-zero flags.

NOTE: This is a candidate for the 8.0 branch.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

docs: update piglit url

Signed-off-by: Brian Paul <brianp@vmware.com>

docs/helpwanted: add r600g and i915g todo lists

Signed-off-by: Brian Paul <brianp@vmware.com>

i965: Allocate dummy slots for point sprites before computing VUE map.

Commit f0cecd43d6b6d moved the VUE map computation to be only once, at
VS compile time.  However, it did so in slightly the wrong place: it
made the one call to brw_vue_compute_map happen right before the
allocation of dummy slots for replaced point sprite coordinates, causing
a different VUE map to be generated (at least on Ironlake).

Fixes a regression in Piglit's point-sprite test on Ironlake.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=46489
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965/vs: Don't clobber sampler message MRFs with subexpressions.

See the preceding commit for a description of the problem.

NOTE: This is a candidate for stable release branches.

v2: Use a separate dPdx variable rather than reusing the lod src_reg.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=52129
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965/fs: Don't clobber sampler message MRFs with subexpressions.

Consider a texture call such as:

   textureLod(s, coordinate, log2(...))

First, we begin setting up the sampler message by loading the texture
coordinates into MRFs, starting with m2.  Then, we realize we need the
LOD, and go to compute it with:

   ir->lod_info.lod->accept(this);

On Gen4-5, this will generate a SEND instruction to compute log2(),
loading the operand into m2, and clobbering our texcoord.

Similar issues exist on Gen6+.  For example, nested texture calls:

  textureLod(s1, c1, texture(s2, c2).x)

Any texturing call where evaluating the subexpression trees for LOD or
shadow comparitor would generate SEND instructions could potentially
break.  In some cases (like register spilling), we get lucky and avoid
the issue by using non-overlapping MRF regions.  But we shouldn't count
on that.

Fixes four Piglit test regressions on Gen4-5:
- glsl-fs-shadow2DGradARB-{01,04,07,cumulative}

NOTE: This is a candidate for stable release branches.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=52129
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965/fs: Factor out texcoord setup into a helper function.

With the textureRect support and GL_CLAMP workarounds, it's grown
sufficiently that it deserves its own function.  Separating it out
makes the original function much more readable.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965/fs: Move message header and texture offset setup to generate_tex().

Setting the texture offset bits in the message header involves very
specific hardware register descriptions.  As such, I feel it's better
suited for the lower level "generate" layer that has direct access to
the weird register layouts, rather than at the fs_inst abstraction layer.

This also parallels the approach I took in the VS backend.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

r600g: atomize sampler state v2

Use atom for sampler state. Does not provide new functionality
or fix any bug. Just a step toward full atom base r600g.

v2: Split seamless on r6xx/r7xx into it's own atom. Make sure it's
    emited after sampler and with a pipeline flush before otherwise
    it does not take effect.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>

radeonsi: add some new pci ids

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

r600g: add additional evergreen pci ids

Note: this is a candidate for the stable branches.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

st/mesa: merge fragment/vertex sampler update code

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

st/mesa: massage update_vertex_samplers() code

...to look like update_fragment_samplers() code, as with the previous
commit.  The next step would be to merge the two functions.

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

st/mesa: merge fragment/vertex texture update code

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

st/mesa: massage the update_vertex_textures() code

...to look like update_fragment_textures() code.  The next step would
be to merge the two functions.

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

st/mesa: rename some vertex/fragment state fields for better consistency

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

llvmpipe: consolidate the sampler and sampler view setting code

Less code.  And as with softpipe, if/when we consolidate the pipe_context
functions for binding sampler state, this will make the llvmpipe changes
trivial.

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

llvmpipe: combine vertex/fragment sampler state into an array

This will allow code consolidation in the next patch.

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

softpipe: consolidate vert/frag/geom sampler setting functions

The functions for setting samplers and sampler views for vertex,
fragment and geometry shaders were nearly identical.  Now they
use shared code.

In the future, if the pipe_context functions for setting samplers
and sampler views for vert/frag/geom/compute are combined, this
will make updating the softpipe driver a snap.

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

softpipe: consolidate sampler-related arrays

Combine separate arrays for vertex/fragment/geometry samplers, etc into
one array indexed by PIPE_SHADER_x.

This allows us to collapse separate code for vertex/fragment/geometry
state into loops over the shader stage.  More to come.

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

softpipe: combine vert/frag/geom texture caches in an array

This lets us consolidate some code now, and more in subsequent patches.

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

mesa: Fix off-by-one error in Parse_TextureImageId.

Fixes out-of-bounds write defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

util: Move dereference after null check in util_resource_copy_region.

Fixes dereference before null check defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

i915g: silence a const pointer warning

radeonsi: fix build failure after blitter changes

r600g: precompute color buffer state in pipe_surface and reuse it

r600g: precompute depth buffer state in pipe_surface and reuse it

This is done on-demand, because we don't know in advance if a zbuffer
will be bound as depth or color.

r600g: simplify create_surface

r600g: drop the old texture allocation code

Made obsolete by the libdrm surface allocator.

r600g: make sure copying of all texture formats is accelerated

gallium/u_blitter: add a query for checking whether copying is supported

v2: add comments

r600g: don't decompress depth or stencil if there isn't any

r600g: correct texture memory size for Z32F_S8X24 on evergreen

gallium/u_blitter: remove fallback for stencil copy that all drivers skipped

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/u_blitter: add ability to blit only depth or only stencil

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: define PIPE_MASK_RGBAZS

I need this and it seems like it could be useful.

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/u_blitter: minor cleanup

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/tgsi: fixup texture name strings

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/u_blitter: set sample mask to ~0

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/u_blit: bail out if src is a multisample texture

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/u_blit: check nr_samples before using resource_copy_region

Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: set sample mask to ~0 for clear, blit and gen_mipmap

The sample mask affects single-sampled rendering too (it's orthogonal
to the color mask).

Reviewed-by: Brian Paul <brianp@vmware.com>

r600g: fix F2U opcode translation

Signed-off-by: Marek Olšák <maraeo@gmail.com>

draw: Ensure channel in convert_to_soa is initialized.

Fixes uninitialized pointer read defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

u_blitter: Move a pointer dereference after null check.

Fixes dereference before null check defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Marek Olšák <maraeo@gmail.com>

Use C99 NAN and INFINITY macros

gallium/tests/trivial: updates for CSO interface changes

st/xorg: updates for CSO interface changes

st/xa: updates for CSO interface changes

vega: fix build breakage from cso sampler/view changes

cso: remove unreachable break statements

cso: 80-column wrapping, remove trailing whitespace, etc

gallium: consolidate CSO sampler and sampler_view functions

Merge the vertex/fragment versions of the cso_set/save/restore_samplers()
functions.  Now we pass the shader stage (PIPE_SHADER_x) to the function
to indicate vertex/fragment/geometry samplers.  For example:

cso_single_sampler(cso, PIPE_SHADER_FRAGMENT, unit, sampler);

This results in quite a bit of code reduction, fewer CSO functions and
support for geometry shaders.

Reviewed-by: Marek Olšák <maraeo@gmail.com>

st/mesa: Ensure dst in compile_instruction is initialized.

Fixes uninitialized scalar variable defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

radeon/llvm: Add $(LLVM_LDFLAGS) to the loader linker flags

radeon/llvm: Add support for more f32 CMP instructions on SI

radeon/llvm: Add support for fneg on SI

radeon/llvm: Add support for fp_to_sint on SI

radeon/llvm: Remove CMOVLOG DAG node

radeonsi: Properly initialize si_shader_ctx.radeon_bld

radeonsi: Handle TGSI TXP opcode.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

radeonsi: Handle TGSI DIV opcode.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

svga: remove questionable INLINE qualifiers

svga: sort #includes

svga: add some comments in svga_screen_cache.c

svga: whitespace, formatting fixes

svga: remove unneeded 'struct svga_screen' declarations

mesa: fix default_access_mode() result for ES2

The GL_OES_mapbuffer extension is supported by OpenGL ES 1 and ES 2 so return
GL_MAP_WRITE_BIT for both ES versions, not just ES 1.

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

mesa: default_access_mode() returns a GLbitfield, not GLenum

scons: set YACCHXXFILESUFFIX to stop needless rebuilding of the parser

Before, the GLSL parser was getting rebuilt every time that scons was
run.  The problem was scons was expecting a glsl_parser.hpp file but
we were generating a glsl_parser.h file.

Signed-off-by: Brian Paul <brianp@vmware.com>

radeonsi: initial VDPAU target

Windowed speed is of course way to slow, but fullscreen
works like a charm now.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

radeon/llvm: fix fp immediates on SI

I don't know if this is a good idea, but it
fixes the problem at hand.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

radeonsi: fix TEX writemask

Using the writemask in the sampler results in packet
VGPRS. For now just sample all components and let
llvm chose the right one.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

radeonsi: fix shader param and color count

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

radeonsi: fix texture loads from sampler > 0

The backend is multiplying the offset by the numbers of
elements anyway, so doing it twice just makes everything
crash.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

radeonsi: disable tiling until we fixed all bugs

Currently there are more important things to worry about.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

scons: Add support for Intel Compiler.

The patch makes the SCons build with Intel Compiler successful.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

meta: Use sampler object in framebuffer blit

Framebuffer blit needs to setup texture sampling with no reference to the
user's texturing state, and a sampler object lets us avoid a bunch of changes
to the user's state setup.

We don't bother caching the sampler object since we're changing parameters in
it based on the filtering option to glBlitFramebuffer().

Fixes piglit GL_ARB_sampler_objects/framebufferblit and rendering in l4d2 (our
setting of srgb decode wasn't being respected due to the user's sampler object
being active).

Signed-off-by: Pauli Nieminen <pauli.nieminen@linux.intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>