This needs to be guarded on availability of tessellation. I'm guessing
that something ends up setting st.dirty to ~0, and this gets called
even when the driver doesn't support tess. Just hit this playing back
a trace with llvmpipe but with the tess patches:
#1 0x00007ffff37dcf49 in update_tess (st=0x7fffe8116530)
at state_tracker/st_atom_tess.c:46
#2 0x00007ffff37d7afb in st_validate_state (st=0x7fffe8116530)
at state_tracker/st_atom.c:223
#3 0x00007ffff37e4291 in st_Clear (ctx=0x7fffe80e1f10, mask=2)
at state_tracker/st_cb_clear.c:469
#4 0x00007ffff35f5c48 in _mesa_Clear (mask=16384) at main/clear.c:224
#5 0x00007ffff57ec452 in glClear (mask=16384) at glapi/glapi_mapi_tmp.h:3064
#6 0x00000000004d4c0f in retrace_glClear(trace::Call&) ()
#7 0x000000000040f488 in retrace::Retracer::retrace(trace::Call&) ()
On Tue, Jun 16, 2015 at 7:04 PM, Marek Olšák <mar...@gmail.com> wrote:
> From: Marek Olšák <marek.ol...@amd.com>
>
> ---
> src/mesa/Makefile.sources | 1 +
> src/mesa/state_tracker/st_atom.c | 1 +
> src/mesa/state_tracker/st_atom.h | 1 +
> src/mesa/state_tracker/st_atom_tess.c | 59
> +++++++++++++++++++++++++++++++++++
> src/mesa/state_tracker/st_context.c | 1 +
> src/mesa/state_tracker/st_context.h | 2 +-
> 6 files changed, 64 insertions(+), 1 deletion(-)
> create mode 100644 src/mesa/state_tracker/st_atom_tess.c
>
> diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
> index 83f500f..ed9848c 100644
> --- a/src/mesa/Makefile.sources
> +++ b/src/mesa/Makefile.sources
> @@ -407,6 +407,7 @@ STATETRACKER_FILES = \
> state_tracker/st_atom_shader.c \
> state_tracker/st_atom_shader.h \
> state_tracker/st_atom_stipple.c \
> + state_tracker/st_atom_tess.c \
> state_tracker/st_atom_texture.c \
> state_tracker/st_atom_viewport.c \
> state_tracker/st_cache.h \
> diff --git a/src/mesa/state_tracker/st_atom.c
> b/src/mesa/state_tracker/st_atom.c
> index c97cd84..5fc1a77 100644
> --- a/src/mesa/state_tracker/st_atom.c
> +++ b/src/mesa/state_tracker/st_atom.c
> @@ -78,6 +78,7 @@ static const struct st_tracked_state *atoms[] =
> &st_bind_fs_ubos,
> &st_bind_gs_ubos,
> &st_update_pixel_transfer,
> + &st_update_tess,
>
> /* this must be done after the vertex program update */
> &st_update_array
> diff --git a/src/mesa/state_tracker/st_atom.h
> b/src/mesa/state_tracker/st_atom.h
> index bbfbd2d..5735ca6 100644
> --- a/src/mesa/state_tracker/st_atom.h
> +++ b/src/mesa/state_tracker/st_atom.h
> @@ -80,6 +80,7 @@ extern const struct st_tracked_state st_bind_gs_ubos;
> extern const struct st_tracked_state st_bind_tcs_ubos;
> extern const struct st_tracked_state st_bind_tes_ubos;
> extern const struct st_tracked_state st_update_pixel_transfer;
> +extern const struct st_tracked_state st_update_tess;
>
>
> GLuint st_compare_func_to_pipe(GLenum func);
> diff --git a/src/mesa/state_tracker/st_atom_tess.c
> b/src/mesa/state_tracker/st_atom_tess.c
> new file mode 100644
> index 0000000..f3aaaae
> --- /dev/null
> +++ b/src/mesa/state_tracker/st_atom_tess.c
> @@ -0,0 +1,59 @@
> +/**************************************************************************
> + *
> + * Copyright 2015 Advanced Micro Devices, Inc.
> + * All Rights Reserved.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
> + * "Software"), to deal in the Software without restriction, including
> + * without limitation the rights to use, copy, modify, merge, publish,
> + * distribute, sub license, and/or sell copies of the Software, and to
> + * permit persons to whom the Software is furnished to do so, subject to
> + * the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the
> + * next paragraph) shall be included in all copies or substantial portions
> + * of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
> + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
> + * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
> + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
> + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
> + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> + *
> + **************************************************************************/
> +
> +/*
> + * Authors:
> + * Marek Olšák <mar...@gmail.com>
> + */
> +
> +
> +#include "main/macros.h"
> +#include "st_context.h"
> +#include "pipe/p_context.h"
> +#include "st_atom.h"
> +
> +
> +static void
> +update_tess(struct st_context *st)
> +{
> + const struct gl_context *ctx = st->ctx;
> + struct pipe_context *pipe = st->pipe;
> +
> + pipe->set_tess_state(pipe,
> + ctx->TessCtrlProgram.patch_default_outer_level,
> + ctx->TessCtrlProgram.patch_default_inner_level);
> +}
> +
> +
> +const struct st_tracked_state st_update_tess = {
> + "update_tess", /* name */
> + { /* dirty */
> + 0, /* mesa */
> + ST_NEW_TESS_STATE, /* st */
> + },
> + update_tess /* update */
> +};
> diff --git a/src/mesa/state_tracker/st_context.c
> b/src/mesa/state_tracker/st_context.c
> index ef4ad1b..06280bc 100644
> --- a/src/mesa/state_tracker/st_context.c
> +++ b/src/mesa/state_tracker/st_context.c
> @@ -308,6 +308,7 @@ static void st_init_driver_flags(struct gl_driver_flags
> *f)
> f->NewArray = ST_NEW_VERTEX_ARRAYS;
> f->NewRasterizerDiscard = ST_NEW_RASTERIZER;
> f->NewUniformBuffer = ST_NEW_UNIFORM_BUFFER;
> + f->NewDefaultTessLevels = ST_NEW_TESS_STATE;
> }
>
> struct st_context *st_create_context(gl_api api, struct pipe_context *pipe,
> diff --git a/src/mesa/state_tracker/st_context.h
> b/src/mesa/state_tracker/st_context.h
> index 3010727..8183412 100644
> --- a/src/mesa/state_tracker/st_context.h
> +++ b/src/mesa/state_tracker/st_context.h
> @@ -53,7 +53,7 @@ struct u_upload_mgr;
> #define ST_NEW_FRAGMENT_PROGRAM (1 << 1)
> #define ST_NEW_VERTEX_PROGRAM (1 << 2)
> #define ST_NEW_FRAMEBUFFER (1 << 3)
> -/* gap, re-use it */
> +#define ST_NEW_TESS_STATE (1 << 4)
> #define ST_NEW_GEOMETRY_PROGRAM (1 << 5)
> #define ST_NEW_VERTEX_ARRAYS (1 << 6)
> #define ST_NEW_RASTERIZER (1 << 7)
> --
> 2.1.0
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
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