[Mesa-dev] [PATCH 11/24] st/mesa: sink and simplify texBaseFormat getting for sampler states

Samuel Pitoiset samuel.pitoiset at gmail.com
Tue Jun 20 19:37:14 UTC 2017



On 06/20/2017 09:30 PM, Marek Olšák wrote:
> On Tue, Jun 20, 2017 at 9:26 PM, Samuel Pitoiset
> <samuel.pitoiset at gmail.com> wrote:
>> _mesa_base_tex_image() returns NULL for bindless textures and this crashes.
>> See below.
> 
> Thanks. Is it a texture buffer object? st_convert_sampler will crash
> if it's a texture buffer object. The standard sampler codepath doesn't
> invoke the function for TBOs.

Could be (I didn't check), but DOW3 uses a ton of TBOs.

I will test your patch. Thanks.

> 
> Marek
> 
>>
>> Thread 41 "OGL_Dispatch_3" received signal SIGSEGV, Segmentation fault.
>> [Switching to Thread 0x7ffee973e700 (LWP 17264)]
>> 0x00007fffdfdf0b61 in st_convert_sampler (st=st at entry=0x9497ef0,
>> texobj=texobj at entry=0x7ffeb9581ac0, msamp=msamp at entry=0x7ffeb8012bd0,
>> sampler=sampler at entry=0x7ffee973d760) at state_tracker/st_atom_sampler.c:148
>> 148           GLenum texBaseFormat =
>> _mesa_base_tex_image(texobj)->_BaseFormat;
>> (gdb) bt
>> #0  0x00007fffdfdf0b61 in st_convert_sampler (st=st at entry=0x9497ef0,
>> texobj=texobj at entry=0x7ffeb9581ac0, msamp=msamp at entry=0x7ffeb8012bd0,
>> sampler=sampler at entry=0x7ffee973d760) at state_tracker/st_atom_sampler.c:148
>> #1  0x00007fffdfe0f82b in st_NewTextureHandle (ctx=<optimized out>,
>> texObj=0x7ffeb9581ac0, sampObj=0x7ffeb8012bd0) at
>> state_tracker/st_cb_texture.c:2924
>> #2  0x00007fffdfd96926 in get_texture_handle (ctx=0x9466920,
>> texObj=0x7ffeb9581ac0, sampObj=0x7ffeb8012bd0) at main/texturebindless.c:239
>> #3  0x0000000002dede77 in (anonymous
>> namespace)::ProcessGLGetTextureSamplerHandleARB((anonymous
>> namespace)::CGLFunctionTable const&, (anonymous namespace)::CWorkItem
>> const&) (dispatch=..., item=...)
>>      at
>> /media/BobBuild/dawnofwar3/Built/Release/64/Libraries/Feral/Feral3D/GeneratedProcessGLFunctions.cpp:20247
>> #4  0x0000000002df19c0 in (anonymous namespace)::CWorkItem::operator()
>> (dispatch=..., this=<optimized out>)
>>      at
>> /Volumes/BobSource/dawnofwar3/Companies/Feral/Development/Libraries/Feral/Feral3D/Source/OpenGL/FeralThreadedGL/FeralThreadedGL.cpp:784
>> #5  0x0000000002df19c0 in FeralThreadedGL::CGLThread::WorkLoop()
>> (this=0x94b1b80) at
>> /Volumes/BobSource/dawnofwar3/Companies/Feral/Development/Libraries/Feral/Feral3D/Source/OpenGL/FeralThreadedGL/FeralThreadedGL.cpp:1956
>> #6  0x000000000473667f in std::execute_native_thread_routine(void*)
>> (__p=0x8a56300) at
>> ../../../../../gcc-6.3.0/libstdc++-v3/src/c++11/thread.cc:83
>> #7  0x00007ffff4a6b297 in start_thread () at /usr/lib/libpthread.so.0
>> #8  0x00007fffee80325f in clone () at /usr/lib/libc.so.6
>>
>> I think you have to keep _mesa_texture_base_format() here.
>>
>>
>> On 06/13/2017 08:22 AM, Timothy Arceri wrote:
>>>
>>> Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
>>>
>>> On 13/06/17 04:18, Marek Olšák wrote:
>>>>
>>>> From: Marek Olšák <marek.olsak at amd.com>
>>>>
>>>> ---
>>>>    src/mesa/state_tracker/st_atom_sampler.c | 17 +++++++++--------
>>>>    1 file changed, 9 insertions(+), 8 deletions(-)
>>>>
>>>> diff --git a/src/mesa/state_tracker/st_atom_sampler.c
>>>> b/src/mesa/state_tracker/st_atom_sampler.c
>>>> index ea231f3..e7968bb 100644
>>>> --- a/src/mesa/state_tracker/st_atom_sampler.c
>>>> +++ b/src/mesa/state_tracker/st_atom_sampler.c
>>>> @@ -112,23 +112,20 @@ gl_filter_to_img_filter(GLenum filter)
>>>>    /**
>>>>     * Convert a gl_sampler_object to a pipe_sampler_state object.
>>>>     */
>>>>    void
>>>>    st_convert_sampler(const struct st_context *st,
>>>>                       const struct gl_texture_object *texobj,
>>>>                       const struct gl_sampler_object *msamp,
>>>>                       struct pipe_sampler_state *sampler)
>>>>    {
>>>>       struct gl_context *ctx = st->ctx;
>>>> -   GLenum texBaseFormat;
>>>> -
>>>> -   texBaseFormat = _mesa_texture_base_format(texobj);
>>>>       memset(sampler, 0, sizeof(*sampler));
>>>>       sampler->wrap_s = gl_wrap_xlate(msamp->WrapS);
>>>>       sampler->wrap_t = gl_wrap_xlate(msamp->WrapT);
>>>>       sampler->wrap_r = gl_wrap_xlate(msamp->WrapR);
>>>>       sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
>>>>       sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter);
>>>>       sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
>>>> @@ -154,20 +151,21 @@ st_convert_sampler(const struct st_context *st,
>>>>          sampler->min_lod = tmp;
>>>>          assert(sampler->min_lod <= sampler->max_lod);
>>>>       }
>>>>       /* For non-black borders... */
>>>>       if (msamp->BorderColor.ui[0] ||
>>>>           msamp->BorderColor.ui[1] ||
>>>>           msamp->BorderColor.ui[2] ||
>>>>           msamp->BorderColor.ui[3]) {
>>>>          const GLboolean is_integer = texobj->_IsIntegerFormat;
>>>> +      GLenum texBaseFormat = _mesa_base_tex_image(texobj)->_BaseFormat;
>>>>          if (st->apply_texture_swizzle_to_border_color) {
>>>>             const struct st_texture_object *stobj =
>>>> st_texture_object_const(texobj);
>>>>             const struct pipe_sampler_view *sv = NULL;
>>>>             /* Just search for the first used view. We can do this because
>>>> the
>>>>                swizzle is per-texture, not per context. */
>>>>             /* XXX: clean that up to not use the sampler view at all */
>>>>             for (unsigned i = 0; i < stobj->num_sampler_views; ++i) {
>>>>                if (stobj->sampler_views[i]) {
>>>> @@ -200,25 +198,28 @@ st_convert_sampler(const struct st_context *st,
>>>>             st_translate_color(&msamp->BorderColor,
>>>>                                &sampler->border_color,
>>>>                                texBaseFormat, is_integer);
>>>>          }
>>>>       }
>>>>       sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ?
>>>>                                  0 : (GLuint) msamp->MaxAnisotropy);
>>>>       /* If sampling a depth texture and using shadow comparison */
>>>> -   if ((texBaseFormat == GL_DEPTH_COMPONENT ||
>>>> -        (texBaseFormat == GL_DEPTH_STENCIL && !texobj->StencilSampling))
>>>> &&
>>>> -       msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
>>>> -      sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
>>>> -      sampler->compare_func =
>>>> st_compare_func_to_pipe(msamp->CompareFunc);
>>>> +   if (msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
>>>> +      GLenum texBaseFormat = _mesa_base_tex_image(texobj)->_BaseFormat;
>>>> +
>>>> +      if (texBaseFormat == GL_DEPTH_COMPONENT ||
>>>> +          (texBaseFormat == GL_DEPTH_STENCIL &&
>>>> !texobj->StencilSampling)) {
>>>> +         sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
>>>> +         sampler->compare_func =
>>>> st_compare_func_to_pipe(msamp->CompareFunc);
>>>> +      }
>>>>       }
>>>>       sampler->seamless_cube_map =
>>>>          ctx->Texture.CubeMapSeamless || msamp->CubeMapSeamless;
>>>>    }
>>>>    static void
>>>>    convert_sampler_from_unit(const struct st_context *st,
>>>>                              struct pipe_sampler_state *sampler,
>>>>
>>> _______________________________________________
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>>> mesa-dev at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev


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