mesa/pbo: Handle zero width, height or depth when validating access

It's legal to call glTexSubImage with zero values for the width,
height or depth. Previously this was breaking the PBO access
validation because it tries to work out the last pixel accessed by
getting the pixel at height-1 and depth-1 which would end up with
bogus values.

This was causing GL errors to be generated during the Piglit
texsubimage test, although the test was passing anyway.

v2: Also check for width == 0. Don't validate the start pointer if any
    of the dimensions are zero.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

glsl: Remove unused total_attribs_size variable.

Accidentally left behind by my previous patch.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Handle attribute aliasing in attribute storage limit check.

In various versions of OpenGL and GLSL, it's possible to declare
multiple VS input variables with aliasing attribute locations.

So, when computing the storage requirements for vertex attributes,
we can't simply add up the sizes.  Instead, we need to look at the
enabled slots.

This patch begins tracking which attributes are double types that
are larger than 128-bits (i.e. take up two vec4 slots).  We then
count normal attributes once, and count the double-size attributes
a second time.

Fixes deQP functional.attribute_location.bind_aliasing.max_cond_* tests
on i965, which regressed with commit ad208d975a6d3aebe14f7c2c16039ee20.

No Piglit changes on llvmpipe (which actually supports dvecs).

Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>
Tested-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

i965/meta: Fix typo in comment

Trivial.

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

mesa: Don't allow wrong type setters for matrix uniforms

Previously we would allow glUniformMatrix4fv on a dmat4 and
glUniformMatrix4dv on a mat4.  Both are illegal.  That later also
overwrites the storage for the mat4 and causes bad things to happen.

Should fix the (new) arb_gpu_shader_fp64-wrong-type-setter piglit test.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

mesa: Pass the type to _mesa_uniform_matrix as a glsl_base_type

This matches _mesa_uniform, and it enables the bug fix in the next
patch.

v2: s/type/basicType/ in the assert in _mesa_uniform_matrix.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au> [v1]
Cc: Dave Airlie <airlied@redhat.com>
Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>

mesa: Silence unused parameter warnings in bufferobj.c

main/bufferobj.c: In function 'count_buffer_size':
main/bufferobj.c:520:26: warning: unused parameter 'key' [-Wunused-parameter]
 count_buffer_size(GLuint key, void *data, void *userData)
                          ^
main/bufferobj.c: In function 'flush_mapped_buffer_range_fallback':
main/bufferobj.c:740:56: warning: unused parameter 'index' [-Wunused-parameter]
                                    gl_map_buffer_index index)
                                                        ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa: Remove target parameter from _mesa_handle_bind_buffer_gen

main/bufferobj.c: In function '_mesa_handle_bind_buffer_gen':
main/bufferobj.c:915:37: warning: unused parameter 'target' [-Wunused-parameter]
                              GLenum target,
                                     ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

i965: Make gen7_enable_hw_binding_tables static

All of the other state upload functions are static because the only use
is in the brw_tracked_state structure.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>

i965: Make gen8_upload_state_base_address static

All of the other state upload functions are static because the only use
is in the brw_tracked_state structure.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

linker: Silence GCC unused parameter warnings

linker.cpp:320:55: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_leave(ir_function *ir)
                                                       ^
linker.cpp:327:53: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_leave(ir_return *ir)
                                                     ^
linker.cpp:333:49: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_enter(ir_if *ir)
                                                 ^
linker.cpp:339:49: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_leave(ir_if *ir)
                                                 ^
linker.cpp:345:51: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_enter(ir_loop *ir)
                                                   ^
linker.cpp:351:51: warning: unused parameter 'ir' [-Wunused-parameter]
    virtual ir_visitor_status visit_leave(ir_loop *ir)
                                                   ^
linker.cpp:2824:53: warning: unused parameter 'ctx' [-Wunused-parameter]
 link_calculate_subroutine_compat(struct gl_context *ctx, struct gl_shader_program *prog)
                                                     ^
linker.cpp:2854:47: warning: unused parameter 'ctx' [-Wunused-parameter]
 check_subroutine_resources(struct gl_context *ctx, struct gl_shader_program *prog)
                                               ^
linker.cpp:3368:49: warning: unused parameter 'ctx' [-Wunused-parameter]
 link_assign_subroutine_types(struct gl_context *ctx,
                                                 ^

Also make link_assign_subroutine_types static since it is only called
from this file.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa: Fix warning about static being in the wrong place

Because the compiler already has enough things to complain about.

    grep -rl 'const static' src/ | while read f
    do
        sed --in-place -e 's/const static/static const/g' $f
    done

brw_eu_emit.c: In function 'brw_reg_type_to_hw_type':
brw_eu_emit.c:98:7: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
       const static int imm_hw_types[] = {
       ^
brw_eu_emit.c:120:7: warning: 'static' is not at beginning of declaration [-Wold-style-declaration]
       const static int hw_types[] = {
       ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

i965/cs: Setup push constant data for uniforms

brw_upload_cs_push_constants was based on gen6_upload_push_constants.

v2:
 * Add FINISHME comments about more efficient ways to push uniforms

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>

meta: Save/restore compute shaders

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

svga: fix referencing a NULL framebuffer cbuf

Check for a valid framebuffer cbuf pointer before accessing its
associated surface.

Fix piglit test fbo-drawbuffers-none.

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

svga: increment texture age when surface is to be marked as dirty

Commit b9ba8492 removes an unneeded pipe_surface_release() from
st_render_texture(). This implies a surface can now be reused for a
render buffer. Currently, when we render to a texture, we mark the
surface as dirty. But in svga_mark_surface_dirty(), if the surface
is already marked as dirty, it does not increment the texture age.
Any view to this texture might not be updated properly then.

With this patch, the texture age is incremented regardless of whether
the surface is already marked as dirty or not.

Fix bug 1499181.

Reviewed-by: Sinclair Yeh <syeh@vmware.com>

svga: fix backed surface view regression

Commit b9ba8492 removes an unneeded pipe_surface_release() from
st_render_texture() and exposes a bug in the backed surface view
creation.  Currently a backed surface view for a conflicted surface view
is created at framebuffer emit time. But if shader sampler views are changed
but framebuffer surface views remain unchanged, emit_framebuffer() will not
be called and conflicted surface views will not be detected.

To fix this, also check for conflicted surface views when setting sampler
views. If there is any conflicted surface views, enable the
framebuffer dirty bit so that the framebuffer emit code has a chance to
create a backed surface view for the conflicted surface view.

Fix cinebench-r11-test regression.

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

i965/fs: Handle MRF destinations in lower_integer_multiplication().

The lowered code reads from the destination, which isn't possible from
message registers.

Fixes the following dEQP tests on SNB:

    dEQP-GLES3.functional.shaders.precision.int.highp_mul_fragment
    dEQP-GLES3.functional.shaders.precision.int.mediump_mul_fragment
    dEQP-GLES3.functional.shaders.precision.int.lowp_mul_fragment

Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org>
Tested-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

docs: document VMware OpenGL 3.3 support

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

svga: update driver for version 10 GPU interface

This is a squash commit of roughly two years of development work.
Authors include:
  Brian Paul
  Charmaine Lee
  Thomas Hellstrom
  Jakob Bornecrantz
  Sinclair Yeh
  Mingcheng Chen
  Kai Ninomiya
  MengLin Wu

The driver supports OpenGL 3.3.

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

svga: add new version 10 device command prototypes

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

svga: add new svga_streamout.h file

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

svga: add new svga_state_tgsi_transform.c file

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

svga: add new svga_state_sampler.c file

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

svga: add new svga_state_gs.c file

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

svga: add new svga_pipe_streamout.c file

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

svga: add new svga_pipe_gs.c file

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

svga: add new svga_link.[ch] files

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

svga: add new svga_cmd_vgpu10.c file

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

svga: add new svga_tgsi_vgpu10.c file

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

svga: remove unused SVGA3D_* command functions

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

gallium/st: add pipe_context::get_timestamp()

The VMware svga driver doesn't directly support pipe_screen::get_timestamp()
but we can do a work-around.  However, we need a gallium context to do so.
This patch adds a new pipe_context::get_timestamp() function that will only
be called if the pipe_screen::get_timestamp() function is NULL.

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

svga/winsys: Add support for VGPU10

This involves a few driver modifications to keep things building.
The driver may not actually run properly at this point.

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

svga: update the svga3d device header files

Remove some obsolete svga_dump.c code for items which no longer exist.

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

svga: add new version 10 device header files

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

winsys/svga: add new vmw_query.c[h] files

Functions for creating, destroying, getting queries, etc.

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

meta: Compute correct buffer size with SkipRows/SkipPixels

If the user is specifying a subregion of a buffer using SKIP_ROWS and
SKIP_PIXELS, we must compute the buffer size carefully as the end of the
last row may be much shorter than stride*image_height*depth. The current
code tries to memcpy from beyond the end of the user data, for example
causing:

==28136== Invalid read of size 8
==28136==    at 0x4C2D94E: memcpy@@GLIBC_2.14 (vg_replace_strmem.c:915)
==28136==    by 0xB4ADFE3: brw_bo_write (brw_batch.c:1856)
==28136==    by 0xB5B3531: brw_buffer_data (intel_buffer_objects.c:208)
==28136==    by 0xB0F6275: _mesa_buffer_data (bufferobj.c:1600)
==28136==    by 0xB0F6346: _mesa_BufferData (bufferobj.c:1631)
==28136==    by 0xB37A1EE: create_texture_for_pbo (meta_tex_subimage.c:103)
==28136==    by 0xB37A467: _mesa_meta_pbo_TexSubImage (meta_tex_subimage.c:176)
==28136==    by 0xB5C8D61: intelTexSubImage (intel_tex_subimage.c:195)
==28136==    by 0xB254AB4: _mesa_texture_sub_image (teximage.c:3654)
==28136==    by 0xB254C9F: texsubimage (teximage.c:3712)
==28136==    by 0xB2550E9: _mesa_TexSubImage2D (teximage.c:3853)
==28136==    by 0x401CA0: UploadTexSubImage2D (teximage.c:171)
==28136==  Address 0xd8bfbe0 is 0 bytes after a block of size 1,024 alloc'd
==28136==    at 0x4C28C20: malloc (vg_replace_malloc.c:296)
==28136==    by 0x402014: PerfDraw (teximage.c:270)
==28136==    by 0x402648: Draw (glmain.c:182)
==28136==    by 0x8385E63: ??? (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x83896C8: fgEnumWindows (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x838641C: glutMainLoopEvent (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x8386C1C: glutMainLoop (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x4019C1: main (glmain.c:262)
==28136==
==28136== Invalid read of size 8
==28136==    at 0x4C2D940: memcpy@@GLIBC_2.14 (vg_replace_strmem.c:915)
==28136==    by 0xB4ADFE3: brw_bo_write (brw_batch.c:1856)
==28136==    by 0xB5B3531: brw_buffer_data (intel_buffer_objects.c:208)
==28136==    by 0xB0F6275: _mesa_buffer_data (bufferobj.c:1600)
==28136==    by 0xB0F6346: _mesa_BufferData (bufferobj.c:1631)
==28136==    by 0xB37A1EE: create_texture_for_pbo (meta_tex_subimage.c:103)
==28136==    by 0xB37A467: _mesa_meta_pbo_TexSubImage (meta_tex_subimage.c:176)
==28136==    by 0xB5C8D61: intelTexSubImage (intel_tex_subimage.c:195)
==28136==    by 0xB254AB4: _mesa_texture_sub_image (teximage.c:3654)
==28136==    by 0xB254C9F: texsubimage (teximage.c:3712)
==28136==    by 0xB2550E9: _mesa_TexSubImage2D (teximage.c:3853)
==28136==    by 0x401CA0: UploadTexSubImage2D (teximage.c:171)
==28136==  Address 0xd8bfbe8 is 8 bytes after a block of size 1,024 alloc'd
==28136==    at 0x4C28C20: malloc (vg_replace_malloc.c:296)
==28136==    by 0x402014: PerfDraw (teximage.c:270)
==28136==    by 0x402648: Draw (glmain.c:182)
==28136==    by 0x8385E63: ??? (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x83896C8: fgEnumWindows (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x838641C: glutMainLoopEvent (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x8386C1C: glutMainLoop (in /usr/lib/x86_64-linux-gnu/libglut.so.3.9.0)
==28136==    by 0x4019C1: main (glmain.c:262)
==28136==

Fixes regression from commit 7f396189f073d626c5f7a2c232dac92b65f5a23f
Author: Jason Ekstrand <jason.ekstrand@intel.com>
Date:   Mon Jan 5 18:17:04 2015 -0800

    meta: Add a BlitFramebuffers-based implementation of TexSubImage

v2: However, the teximage we create does need to be width x full_height x 1

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jason Ekstrand <jason.ekstrand@intel.com>
Cc: Neil Roberts <neil@linux.intel.com>
Reviewed-by Neil Roberts <neil@linux.intel.com>

i965/vec4: fill src_reg type using the constructor type parameter

The src_reg constructor that received the glsl_type was using it
only to build the swizzle, but not to fill this->type as dst_reg
is doing.

This caused some type mismatch between movs and alu operations
on the NIR path, so copy propagation optimization was not applied
to remove unneeded movs if negate modifier was involved. This was
first detected on minus (negate+add) operations.

Shader DB results (taking into account only vec4):

total instructions in shared programs: 20019 -> 19934 (-0.42%)
instructions in affected programs:     2918 -> 2833 (-2.91%)
helped:                                79
HURT:                                  0
GAINED:                                0
LOST:                                  0

Reviewed-by: Matt Turner <mattst88@gmail.com>

r600g: Add doubles support for CYPRESS

This doesn't enable the support, just adds some of
the code, so we don't have to keep rebasing.

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g: add doubles support for CAYMAN

Only a subset of AMD GPUs supported by r600g support doubles,
CAYMAN and CYPRESS are probably all we'll try and support, however
I don't have a CYPRESS so ignore that for now.

This disables SB support for doubles, as we think we need to
make the scheduler smarter to introduce delay slots.

[airlied: pushing this to avoid pain of rebasing, it mostly
works on cayman only so far, Glenn has some ideas about
delay slot issues we need to look into. turned off by
default for now]

Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/scan: add uses_doubles to tgsi scanner

This allows drivers to work out if a shader contains any
double opcodes easily.

Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g: add multiple stream support for geom shaders

This patch is taken from work by Glenn and myself,
and I've spent some time making it all work here.

This adds support for the multiple streams part of
ARB_gpu_shader5 to r600g.

It doesn't enable ARB_gpu_shader5 yet.

Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g/sb: add support for multiple streams to SB backend

This adds a peephole and removes an assert that isn't
actually valid with some of the stream emit instructions.

Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g: add support for streams to the assembler.

This just adds support to the assembler dumper and allows
stream instructions to be generated. Also fix up the stream
debugging to add stream info.

Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g/sb: dump sampler/resource index modes for textures.

This just aids debugging.

Signed-off-by: Dave Airlie <airlied@redhat.com>

mesa/readpixels: check strides are equal before skipping conversion

The CTS packed_pixels test checks that readpixels doesn't write
into the space between rows, however we fail that here unless
we check the format and stride match.

This fixes all the core mesa problems with CTS packed_pixels
tests.

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

texcompress_s3tc/fxt1: fix stride checks (v1.1)

The fastpath currently checks the RowLength != width, but
if you have a RowLength of 7, and Alignment of 4, then
that shouldn't match.

align the rowlength to the pack alignment before comparing.

This fixes compressed cases in CTS packed_pixels_pixelstore
test when SKIP_PIXELS is enabled, which causes row length
to get set.

v1.1: add fxt1 fix (Iago)

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

st/readpixels: fix accel path for skipimages.

We don't need to use the 3d image address here as that will
include SKIP_IMAGES, and we are only blitting a single
2D anyways, so just use the 2D path.

This fixes some memory overruns under CTS
 packed_pixels.packed_pixels_pixelstore when PACK_SKIP_IMAGES
is used.

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

mesa/formats: 8-bit channel integer formats addition

Add enough 8-bit channel formats to handle all the
different things CTS throws at us.

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

mesa/formats: add some formats from GL3.3

GL3.3 added GL_ARB_texture_rgb10_a2ui, which specifies
a lot more things than just rgb10/a2ui.

While playing with ogl conform one of the tests must
attempted all valid formats for GL3.3 and hits the
unreachable here.

This adds the first chunk of formats that hit the
assert.

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

mesa: handle SwapBytes in compressed texture get code.

This case just wasn't handled, so add support for it.

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

mesa: fix SwapBytes handling in numerous places

In a number of places the SwapBytes handling didn't handle cases with
GL_(UN)PACK_ALIGNMENT set and 7 byte width cases aligned to 8 bytes.

This adds a common routine to swap bytes a 2D image and uses this
code in:

texture storage
texture get
readpixels
swrast drawpixels.

[airlied: updated with Brian's nitpicks].

Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

auxiliary/os: Don't implement os_get_option() on embedded builds.

Let it be defined externally instead, allowing setting mechanisms other
than environment variables.

Reviewed-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Matthew McClure <mcclurem@vmware.com>

util: add a couple primitive restart helper functions

The first function translates prim restart indexes to be 0xffff or
0xffffffff.

The second splits indexed primitives with restart indexes into sub-
primitives without restart indexes.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>

tgsi: add tgsi utility to transform a fragment shader to support aa point

This adds a tgsi utility tgsi_add_aa_point to transform a fragment shader
to support anti-aliased wide point by computing the fragment distance from
the point center. This utility assumes the geometry shader is emitting
an extra generic output with point coord data. The semantic index of
this generic output is passed to the tgsi_add_aa_point utility.

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

tgsi: adds tgsi utility to transform a shader to support point sprite

This adds a tgsi utility tgsi_add_point_sprite to transform a geometry
shader to emulate wide points by drawing quads. This utility adds an
extra output for the original point position if the point position is
to be written to a stream output buffer. It also assumes the driver will
add a constant for inverse viewport scale after the user defined constants.

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

tgsi: add new tgsi_two_side.c utility code

This could be used by any driver where the device doesn't directly
support two-sided lighting.  This code modifies a fragment shader
to accecpt back-face colors and choose between the front/back colors
depending on the triangle's front-face sign.

util: add util_strcasecmp() wrapper

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

gallium/util: add a utility to create geometry passthrough shader

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

gallium/util: fix returning empty box for rectangle intersection

These functions deal with inclusive coordinates, hence a 0/0/0/0 rect
returned when there's no intersection doesn't actually represent an empty
rectangle. Hence return 0/-1/0/-1 instead.
This fixes some problems in llvmpipe with empty scissor rects (which up
to now didn't really matter because while the intersect test returned the
wrong result all pixels were scissored away later anyway).

gallium/util: return FALSE for intersection if there's empty rectangles

It isn't really obvious if intersection test should take into account empty
rectangles or if the caller should do it. But it looks like most callers
actually verified one of the rects but not the other, but since correctly
returning an empty rect that other rect could actually be empty leading to
more bugs. Hence just verify both rects for emptyness in the intersection
test itself which makes the code easier in the caller (though it will be
slower if the caller knows the rectangles are non-empty).

Reviewed-by: Zack Rusin <zackr@vmware.com>

tgsi: add some more helper functions

This patch adds some more helper functions such as
   . tgsi_transform_temps_decl
   . tgsi_transform_output_decl
   . tgsi_transform_dst_reg
   . tgsi_transform_src_reg

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

tgsi: added tgsi_is_shadow_target() helper

tgsi: add negate parameter to tgsi_transform_kill_inst()

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

util: added ffsll() function

v2: fix errant _GNU_SOURCE test, per Matt Turner.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

util: added util_set_index_buffer()

Like util_set_vertex_buffers_count(), this basically just copies a
pipe_index_buffer object, taking care of refcounting.

mesa: Move gl_vert_attrib from mtypes.h to shader_enums.h

It is a shader enum after all...

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

glapi: Inline x86_64_current_tls().

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

r600g: Simplify out a couple of unnecessary branches

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

radeonsi: use an indirect buffer for init_config

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: add IB2 indirect buffer support for pm4 states

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

winsys/radeon: add a flag telling how gfx IBs should be padded

This is always false on amdgpu (set by calloc).

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

winsys/amdgpu: remove IB padding for SI

SI is unsupported by amdgpu

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: remove unused macro si_pm4_set_state

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: remove si_pm4_cleanup

All remaining pm4 state are created and destroyed by state trackers.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: rework uploading border colors

The border colors are uploaded only once when the state is created.

This brings truly immutable sampler descriptors, because they don't have
to be updated every time a sampler state is re-bound.

It also moves the TA_BC_BASE_ADDR registers to init_config, removing one
more state. The catch is there is now a limit: only 4096 border colors can
be used by one context. I don't think that will be a problem.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: use all built-in border colors

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: inline si_cmd_context_control

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: remove unused si_pm4_state code

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: reorder si_context variables

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't send IB dword usage to si_need_cs_space

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't set number of IB dwords for states

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't count IB space for states, just use an upper bound

Since we don't put any resource descriptors in IBs, the space used by draw
calls is quite small.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert SPI state to an atom

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

gallium/radeon: rename r600_context_bo_reloc -> radeon_add_to_buffer_list

this name should be easy to understand without other knowledge

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

gallium/radeon: rename write_*_reg functions

e.g. radeon_set_context_reg is nicer and looks consistent next to
radeon_emit().

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: rename and precalculate polygon offset states

one less calloc and state construction while drawing

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert CB_TARGET_MASK setup to an atom

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't set VGT_VTX_CNT_EN twice in init_config

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert stencil ref state into an atom

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert blend color state into an atom

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert sample mask state into an atom

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: convert clip state into an atom

Reducing calloc overhead.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: avoid redundant CB and DB register updates

The main idea is to avoid setting CB_COLORi_INFO = 0 for i>0 repeatedly
when those colorbuffers aren't used. This is mainly for glamor.

Same for DB. Z_INFO and STENCIL_INFO need to be cleared only once.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't rebind GSVS ring buffers every draw call using GS

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: don't clear the tessellation factor ring buffer

Leftover from the bring-up.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: remove the tf_ring state, add the registers to init_config

One less state to worry about.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: remove the gs_rings state, add the registers to init_config

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: use a bitmask for tracking dirty atoms

This mainly removes the cache misses when checking the dirty flags.
Not much else though.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: initialize atom IDs for external atoms

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>