[Mesa-dev] [PATCH] i965: implement ARB_pipeline_statistics_query
Ilia Mirkin
imirkin at alum.mit.edu
Sun Nov 23 11:02:49 PST 2014
On Sun, Nov 23, 2014 at 1:55 PM, Ben Widawsky
<benjamin.widawsky at intel.com> wrote:
> On Sun, Nov 23, 2014 at 01:50:08PM -0500, Ilia Mirkin wrote:
>> On Sun, Nov 23, 2014 at 1:31 PM, Ben Widawsky <ben at bwidawsk.net> wrote:
>> > On Sun, Nov 23, 2014 at 02:12:10AM -0500, Ilia Mirkin wrote:
>> >> On Sat, Nov 22, 2014 at 6:52 PM, Ben Widawsky
>> >> <benjamin.widawsky at intel.com> wrote:
>> >> > This patch implements ARB_pipeline_statistics_query. This addition to GL does
>> >> > not add a new API. Instead, it adds new tokens to the existing query APIs. The
>> >> > work to hook up the new tokens is trivial due to it's similarity to the previous
>> >> > work done for the query APIs. I've implemented all the new tokens to some
>> >> > degree, but have stubbed out the untested ones at the entry point for Begin().
>> >> > Doing this should allow the remainder of the code to be left in.
>> >> >
>> >> > The new tokens give GL clients a way to obtain stats about the GL pipeline.
>> >> > Generally, you get the number of things going in, invocations, and number of
>> >> > things coming out, primitives, of the various stages. There are two immediate
>> >> > uses for this, performance information, and debugging various types of
>> >> > misrendering. I doubt one can use these for debugging very complex applications,
>> >> > but for piglit tests, it should be quite useful.
>> >> >
>> >> > Tessellation shaders, and compute shaders are not addressed in this patch
>> >> > because there is no upstream implementation. I've implemented how I believe
>> >> > tessellation shader stats will work for Intel hardware (though there is a bit of
>> >> > ambiguity). Compute shaders are a bit more interesting though, and I don't yet
>> >> > know what we'll do there.
>> >> >
>> >> > For the lazy, here is a link to the relevant part of the spec:
>> >> > https://www.opengl.org/registry/specs/ARB/pipeline_statistics_query.txt
>> >> >
>> >> > I was unsure how to handle the following:
>> >> >>Dependencies on AMD_transform_feedback4
>> >> >>
>> >> >> If AMD_transform_feedback4 is supported then GEOMETRY_SHADER_PRIMITIVES_-
>> >> >> EMITTED_ARB counts primitives emitted to any of the vertex streams for
>> >> >> which STREAM_RASTERIZATION_AMD is enabled.
>> >> >
>> >> > Running the piglit tests
>> >> > http://lists.freedesktop.org/archives/piglit/2014-November/013321.html
>> >> > (http://cgit.freedesktop.org/~bwidawsk/piglit/log/?h=pipe_stats)
>> >> > yield the following results:
>> >> >
>> >> >> python2 ./piglit-run.py -t stats tests/all.py output/pipeline_stats
>> >> >> [5/5] pass: 5 Running Test(s): 5
>> >> >
>> >> > Previously I was seeing the adjacent vertex test failing on certain Intel
>> >> > hardware. I am currently not able to reproduce this, and therefore for now, I'll
>> >> > assume it was some transient issue which has been fixed.
>> >> >
>> >> > Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
>> >> > ---
>> >> > docs/GL3.txt | 1 +
>> >> > src/mapi/glapi/gen/GL4x.xml | 14 ++++
>> >> > src/mesa/drivers/dri/i965/gen6_queryobj.c | 116 +++++++++++++++++++++++++++
>> >> > src/mesa/drivers/dri/i965/intel_extensions.c | 1 +
>> >> > src/mesa/main/config.h | 3 +
>> >> > src/mesa/main/extensions.c | 1 +
>> >> > src/mesa/main/mtypes.h | 15 ++++
>> >> > src/mesa/main/queryobj.c | 77 ++++++++++++++++++
>> >>
>> >> Traditionally these are split up among 3 patches, one which adds the
>> >> glapi, one which adds the core impl, and one which adds the driver
>> >> impl. It might be fine to merge the first 2 bits here.
>> >>
>> >
>> > Okay. So glapi + core which always fail followed by the implementation patch?
>>
>> Which do nothing since they're not enabled by the driver. But they
>> definitely shouldn't fail -- not all drivers will support this.
>>
>
> Sorry, I didn't mean fail in the GL API sense. I meant fail as in, return NULL
> in the relevant function. I think we're on the same page.
>
> This brings up a good point which I meant to highlight in the commit message and
> forgot. I was assuming if one of the tokens is not implemented by a driver,
> GL_INVALID_ENUM would be returned (as is present case for i965 with tessellation
> + comute). However, one could argue that this extension is all or nothing. If
> you support the extension, you must support all 11 tokens. Thoughts on that?
>
>> >
>> >> > 8 files changed, 228 insertions(+)
>> >> >
>> >> > diff --git a/docs/GL3.txt b/docs/GL3.txt
>> >> > index 4c07733..5f310f3 100644
>> >> > --- a/docs/GL3.txt
>> >> > +++ b/docs/GL3.txt
>> >> > @@ -183,6 +183,7 @@ GL 4.4, GLSL 4.40:
>> >> > GL_ARB_texture_mirror_clamp_to_edge DONE (i965, nv30, nv50, nvc0, r300, r600, radeonsi, swrast, llvmpipe, softpipe)
>> >> > GL_ARB_texture_stencil8 not started
>> >> > GL_ARB_vertex_type_10f_11f_11f_rev DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe)
>> >> > + GL_ARB_pipeline_statistics_query most of i965 is done
>> >>
>> >> I see no mention of this in the GL4.5 core spec, which likely means
>> >> it's not in the 4.4 one either. I believe GL3.txt only lists the
>> >> extensions that are required for a particular GL version.
>> >
>> > I wasn't really sure how this is done. I based it off of the blurb in the
>> > extension:
>> >
>> > The extension is written against the OpenGL 4.4 Specification,
>> > Core Profile, March 19, 2014.
>>
>> Yeah, that's because extensions are written as diff's. This just tells
>> you what it's diffing against.
>>
>
> Okay. Do I put this information anywhere instead of GL3.txt?
relnotes/10.5.html (which you the honor of creating)
>
>> >
>> >>
>> >> >
>> >> > GL 4.5, GLSL 4.50:
>> >> >
>> >> > diff --git a/src/mapi/glapi/gen/GL4x.xml b/src/mapi/glapi/gen/GL4x.xml
>> >> > index 848316e..4a1c172 100644
>> >> > --- a/src/mapi/glapi/gen/GL4x.xml
>> >> > +++ b/src/mapi/glapi/gen/GL4x.xml
>> >> > @@ -44,4 +44,18 @@
>> >> > <enum name="DEPTH_STENCIL_TEXTURE_MODE" value="0x90EA"/>
>> >> > </category>
>> >> >
>> >> > +<category name="4.4">
>> >> > + <enum name="VERTICES_SUBMITTED" value="0x82EE"/>
>> >> > + <enum name="PRIMITIVES_SUBMITTED" value="0x82EF"/>
>> >> > + <enum name="VERTEX_SHADER_INVOCATIONS" value="0x82F0"/>
>> >> > + <enum name="TESS_CONTROL_SHADER_PATCHES" value="0x82F1"/>
>> >> > + <enum name="TESS_EVALUATION_SHADER_INVOCATIONS" value="0x82F2"/>
>> >> > + <enum name="GEOMETRY_SHADER_INVOCATIONS" value="0x887F"/>
>> >> > + <enum name="GEOMETRY_SHADER_PRIMITIVES_EMITTED" value="0x82F3"/>
>> >> > + <enum name="FRAGMENT_SHADER_INVOCATIONS" value="0x82F4"/>
>> >> > + <enum name="COMPUTE_SHADER_INVOCATIONS" value="0x82F5"/>
>> >> > + <enum name="CLIPPING_INPUT_PRIMITIVES" value="0x82F6"/>
>> >> > + <enum name="CLIPPING_OUTPUT_PRIMITIVES" value="0x82F7"/>
>> >> > +</category>
>> >>
>> >> Normally these get added to a separate ARB_foo_extension.xml document...
>> >>
>> >> > +
>> >> > </OpenGLAPI>
>> >> > diff --git a/src/mesa/drivers/dri/i965/gen6_queryobj.c b/src/mesa/drivers/dri/i965/gen6_queryobj.c
>> >> > index 130236e..7d03e1f 100644
>> >> > --- a/src/mesa/drivers/dri/i965/gen6_queryobj.c
>> >> > +++ b/src/mesa/drivers/dri/i965/gen6_queryobj.c
>> >> > @@ -109,6 +109,73 @@ write_xfb_primitives_written(struct brw_context *brw,
>> >> > }
>> >> > }
>> >> >
>> >> > +static inline const int
>> >> > +pipeline_target_to_index(int target)
>> >> > +{
>> >> > + if (target == GL_GEOMETRY_SHADER_INVOCATIONS)
>> >> > + return MAX_PIPELINE_STATISTICS - 1;
>> >> > + else
>> >> > + return target - GL_VERTICES_SUBMITTED_ARB;
>> >> > +}
>> >> > +
>> >> > +static void
>> >> > +emit_pipeline_stat(struct brw_context *brw, drm_intel_bo *bo,
>> >> > + int stream, int target, int idx)
>> >> > +{
>> >> > + /*
>> >> > + * There are 2 confusing parts to implementing the various target. The first is
>> >> > + * the distinction between vertices submitted and primitives submitted. The
>> >> > + * spec tries to clear this up, and luckily our hardware seems to understand
>> >> > + * it:
>> >> > + *
>> >> > + * (8) What stage the VERTICES_SUBMITTED_ARB and PRIMITIVES_SUBMITTED_ARB
>> >> > + * belong to? What do they count?
>> >> > + *
>> >> > + * DISCUSSION: There is no separate pipeline stage introduced in the
>> >> > + * specification that matches D3D's "input assembler" stage. While the
>> >> > + * latest version of the GL specification mentions a "vertex puller" stage
>> >> > + * in the pipeline diagram, this stage does not have a corresponding chapter
>> >> > + * in the specification that introduces it.
>> >> > + *
>> >> > + * RESOLVED: Introduce VERTICES_SUBMITTED_ARB and PRIMITIVES_SUBMITTED_ARB
>> >> > + * in chapter 10, Vertex Specification and Drawing Command. They count the
>> >> > + * total number of vertices and primitives processed by the GL. Including
>> >> > + * multiple instances.
>> >> > + *
>> >> > + * The second confusion is the tessellation shader statistics. Our hardware has
>> >> > + * no statistics specific to the TE unit. Ideally we could have the HS
>> >> > + * primitives for TESS_CONTROL_SHADER_PATCHES_ARB, and the DS invocations as
>> >> > + * the register for TESS_CONTROL_SHADER_PATCHES_ARB. Unfortunately we don't
>> >> > + * have HS primitives, we only have HS invocations.
>> >> > + */
>> >> > +
>> >> > + /* Everything except GEOMETRY_SHADER_INVOCATIONS can be kept in a simple
>> >> > + * lookup table */
>> >> > + const uint32_t target_to_register[] = {
>> >> > + IA_VERTICES_COUNT, /* VERTICES_SUBMITTED */
>> >> > + IA_PRIMITIVES_COUNT, /* PRIMITIVES_SUBMITTED */
>> >> > + VS_INVOCATION_COUNT, /* VERTEX_SHADER_INVOCATIONS */
>> >> > + 0, /* HS_INVOCATION_COUNT,*/ /* TESS_CONTROL_SHADER_PATCHES */
>> >> > + 0, /* DS_INVOCATION_COUNT,*/ /* TESS_EVALUATION_SHADER_INVOCATIONS */
>> >> > + GS_PRIMITIVES_COUNT, /* GEOMETRY_SHADER_PRIMITIVES_EMITTED */
>> >> > + PS_INVOCATION_COUNT, /* FRAGMENT_SHADER_INVOCATIONS */
>> >> > + 0, /* COMPUTE_SHADER_INVOCATIONS */
>> >> > + CL_INVOCATION_COUNT, /* CLIPPING_INPUT_PRIMITIVES */
>> >> > + CL_PRIMITIVES_COUNT, /* CLIPPING_OUTPUT_PRIMITIVES */
>> >> > + GS_INVOCATION_COUNT /* This one is special... */
>> >> > + };
>> >> > + STATIC_ASSERT(ARRAY_SIZE(target_to_register) == MAX_PIPELINE_STATISTICS);
>> >> > + uint32_t reg = target_to_register[pipeline_target_to_index(target)];
>> >> > + assert(reg != 0);
>> >> > +
>> >> > + /* Emit a flush to make sure various parts of the pipeline are complete and
>> >> > + * we get an accurate value */
>> >> > + intel_batchbuffer_emit_mi_flush(brw);
>> >> > +
>> >> > + brw_store_register_mem64(brw, bo, reg, idx);
>> >> > +}
>> >> > +
>> >> > +
>> >> > /**
>> >> > * Wait on the query object's BO and calculate the final result.
>> >> > */
>> >> > @@ -182,9 +249,24 @@ gen6_queryobj_get_results(struct gl_context *ctx,
>> >> >
>> >> > case GL_PRIMITIVES_GENERATED:
>> >> > case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
>> >> > + case GL_VERTICES_SUBMITTED_ARB:
>> >> > + case GL_PRIMITIVES_SUBMITTED_ARB:
>> >> > + case GL_VERTEX_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_GEOMETRY_SHADER_INVOCATIONS:
>> >> > + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
>> >> > + case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
>> >> > + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
>> >> > query->Base.Result = results[1] - results[0];
>> >> > break;
>> >> >
>> >> > + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
>> >> > + /* Off by 4 in the hardware */
>> >> > + query->Base.Result = (results[1] - results[0]) / 4;
>> >> > + break;
>> >> > +
>> >> > + case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
>> >> > + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
>> >> > default:
>> >> > unreachable("Unrecognized query target in brw_queryobj_get_results()");
>> >> > }
>> >> > @@ -251,6 +333,20 @@ gen6_begin_query(struct gl_context *ctx, struct gl_query_object *q)
>> >> > write_xfb_primitives_written(brw, query->bo, query->Base.Stream, 0);
>> >> > break;
>> >> >
>> >> > + case GL_VERTICES_SUBMITTED_ARB:
>> >> > + case GL_PRIMITIVES_SUBMITTED_ARB:
>> >> > + case GL_VERTEX_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_GEOMETRY_SHADER_INVOCATIONS:
>> >> > + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
>> >> > + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
>> >> > + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
>> >> > + emit_pipeline_stat(brw, query->bo, query->Base.Stream, query->Base.Target, 0);
>> >> > + break;
>> >> > +
>> >> > + case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
>> >> > + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
>> >> > default:
>> >> > unreachable("Unrecognized query target in brw_begin_query()");
>> >> > }
>> >> > @@ -289,6 +385,26 @@ gen6_end_query(struct gl_context *ctx, struct gl_query_object *q)
>> >> > write_xfb_primitives_written(brw, query->bo, query->Base.Stream, 1);
>> >> > break;
>> >> >
>> >> > + case GL_VERTICES_SUBMITTED_ARB:
>> >> > + case GL_PRIMITIVES_SUBMITTED_ARB:
>> >> > + case GL_VERTEX_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
>> >> > + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
>> >> > + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
>> >> > + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
>> >> > + emit_pipeline_stat(brw, query->bo,
>> >> > + query->Base.Stream, query->Base.Target, 1);
>> >> > + break;
>> >> > + case GL_GEOMETRY_SHADER_INVOCATIONS:
>> >> > + /* GEOMETRY_SHADER_INVOCATIONS has a weirdly numbered target */
>> >> > + emit_pipeline_stat(brw, query->bo, query->Base.Stream,
>> >> > + GL_VERTICES_SUBMITTED_ARB + MAX_PIPELINE_STATISTICS - 1,
>> >> > + 1);
>> >> > + break;
>> >> > +
>> >> > default:
>> >> > unreachable("Unrecognized query target in brw_end_query()");
>> >> > }
>> >> > diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c
>> >> > index bbbb76f..a3645b9 100644
>> >> > --- a/src/mesa/drivers/dri/i965/intel_extensions.c
>> >> > +++ b/src/mesa/drivers/dri/i965/intel_extensions.c
>> >> > @@ -186,6 +186,7 @@ intelInitExtensions(struct gl_context *ctx)
>> >> > ctx->Extensions.ARB_map_buffer_range = true;
>> >> > ctx->Extensions.ARB_occlusion_query = true;
>> >> > ctx->Extensions.ARB_occlusion_query2 = true;
>> >> > + ctx->Extensions.ARB_pipeline_statistics_query = true;
>> >> > ctx->Extensions.ARB_point_sprite = true;
>> >> > ctx->Extensions.ARB_seamless_cube_map = true;
>> >> > ctx->Extensions.ARB_shader_bit_encoding = true;
>> >> > diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
>> >> > index 4ec4b75..50e87fa 100644
>> >> > --- a/src/mesa/main/config.h
>> >> > +++ b/src/mesa/main/config.h
>> >> > @@ -300,6 +300,9 @@
>> >> > #define MAX_COMPUTE_IMAGE_UNIFORMS 8
>> >> > /*@}*/
>> >> >
>> >> > +/** For GL_ARB_pipeline_statistics_query */
>> >> > +#define MAX_PIPELINE_STATISTICS 11
>> >> > +
>> >> > /*
>> >> > * Color channel component order
>> >> > *
>> >> > diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
>> >> > index 0df04c2..997c774 100644
>> >> > --- a/src/mesa/main/extensions.c
>> >> > +++ b/src/mesa/main/extensions.c
>> >> > @@ -133,6 +133,7 @@ static const struct extension extension_table[] = {
>> >> > { "GL_ARB_multitexture", o(dummy_true), GLL, 1998 },
>> >> > { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL, 2003 },
>> >> > { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GLL, 2001 },
>> >> > + { "GL_ARB_pipeline_statistics_query", o(ARB_pipeline_statistics_query), GL, 2014 },
>> >> > { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
>> >> > { "GL_ARB_point_parameters", o(EXT_point_parameters), GLL, 1997 },
>> >> > { "GL_ARB_point_sprite", o(ARB_point_sprite), GL, 2003 },
>> >> > diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> >> > index 7389baa..24cb21e 100644
>> >> > --- a/src/mesa/main/mtypes.h
>> >> > +++ b/src/mesa/main/mtypes.h
>> >> > @@ -3053,6 +3053,9 @@ struct gl_query_state
>> >> > /** GL_ARB_timer_query */
>> >> > struct gl_query_object *TimeElapsed;
>> >> >
>> >> > + /** GL_ARB_pipeline_statistics_query */
>> >> > + struct gl_query_object *pipeline_stats[MAX_PIPELINE_STATISTICS][MAX_VERTEX_STREAMS];
>> >> > +
>> >> > GLenum CondRenderMode;
>> >> > };
>> >> >
>> >> > @@ -3439,6 +3442,17 @@ struct gl_constants
>> >> > GLuint Timestamp;
>> >> > GLuint PrimitivesGenerated;
>> >> > GLuint PrimitivesWritten;
>> >> > + GLuint VerticesSubmitted;
>> >> > + GLuint PrimitivesSubmitted;
>> >> > + GLuint VsInvocations;
>> >> > + GLuint TessPatches;
>> >> > + GLuint TessInvocations;
>> >> > + GLuint GsInvocations;
>> >> > + GLuint GsPrimitives;
>> >> > + GLuint FsInvocations;
>> >> > + GLuint ComputeInvocations;
>> >> > + GLuint ClInPrimitives;
>> >> > + GLuint ClOutPrimitives;
>> >> > } QueryCounterBits;
>> >> >
>> >> > GLuint MaxDrawBuffers; /**< GL_ARB_draw_buffers */
>> >> > @@ -3735,6 +3749,7 @@ struct gl_extensions
>> >> > GLboolean ARB_map_buffer_range;
>> >> > GLboolean ARB_occlusion_query;
>> >> > GLboolean ARB_occlusion_query2;
>> >> > + GLboolean ARB_pipeline_statistics_query;
>> >> > GLboolean ARB_point_sprite;
>> >> > GLboolean ARB_sample_shading;
>> >> > GLboolean ARB_seamless_cube_map;
>> >> > diff --git a/src/mesa/main/queryobj.c b/src/mesa/main/queryobj.c
>> >> > index 932359c..4590dbe 100644
>> >> > --- a/src/mesa/main/queryobj.c
>> >> > +++ b/src/mesa/main/queryobj.c
>> >> > @@ -142,6 +142,15 @@ _mesa_init_query_object_functions(struct dd_function_table *driver)
>> >> > driver->CheckQuery = _mesa_check_query;
>> >> > }
>> >> >
>> >> > +static struct gl_query_object **
>> >> > +get_pipe_stats_binding_point(struct gl_context *ctx,
>> >> > + GLenum target,
>> >> > + GLuint index)
>> >> > +{
>> >> > + const int which = target - GL_VERTICES_SUBMITTED_ARB;
>> >> > + assert(which < MAX_PIPELINE_STATISTICS);
>> >> > + return &ctx->Query.pipeline_stats[which][index];
>> >> > +}
>> >> >
>> >> > /**
>> >> > * Return pointer to the query object binding point for the given target and
>> >> > @@ -183,6 +192,41 @@ get_query_binding_point(struct gl_context *ctx, GLenum target, GLuint index)
>> >> > return &ctx->Query.PrimitivesWritten[index];
>> >> > else
>> >> > return NULL;
>> >> > +
>> >> > + case GL_VERTICES_SUBMITTED_ARB:
>> >> > + case GL_PRIMITIVES_SUBMITTED_ARB:
>> >> > + case GL_VERTEX_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
>> >> > + case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
>> >> > + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
>> >> > + if (ctx->Extensions.ARB_pipeline_statistics_query)
>> >> > + return get_pipe_stats_binding_point(ctx, target, index);
>> >> > + else
>> >> > + return NULL;
>> >> > +
>> >> > + case GL_GEOMETRY_SHADER_INVOCATIONS:
>> >> > + /* GL_GEOMETRY_SHADER_INVOCATIONS is defined in a non-sequential order */
>> >> > + target = GL_VERTICES_SUBMITTED_ARB + MAX_PIPELINE_STATISTICS - 1;
>> >>
>> >> It's most common to add a /* fallthrough */ to indicate that it was on purpose.
>> >>
>> >> > + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
>> >> > + if (ctx->Version >= 32 || ctx->Extensions.ARB_geometry_shader4)
>> >> > + return get_pipe_stats_binding_point(ctx, target, index);
>> >> > + else
>> >> > + return NULL;
>> >> > +
>> >> > +#if 0 /* Not yet testable */
>> >> > + case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
>> >> > + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
>> >> > + if (ctx->Version >= 40 || ctx->Extensions.ARB_tessellation_shader)
>> >> > + return get_pipe_stats_binding_point(ctx, target, index);
>> >> > + else
>> >> > + return NULL;
>> >> > +
>> >> > + case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
>> >> > + if (ctx->Version >= 43 || ctx->Extensions.ARB_compute_shader)
>> >> > + return get_pipe_stats_binding_point(ctx, target, index);
>> >> > + return NULL;
>> >> > +#endif
>> >> > +
>> >> > default:
>> >> > return NULL;
>> >> > }
>> >> > @@ -553,6 +597,39 @@ _mesa_GetQueryIndexediv(GLenum target, GLuint index, GLenum pname,
>> >> > case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
>> >> > *params = ctx->Const.QueryCounterBits.PrimitivesWritten;
>> >> > break;
>> >> > + case GL_VERTICES_SUBMITTED_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.VerticesSubmitted;
>> >> > + break;
>> >> > + case GL_PRIMITIVES_SUBMITTED_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.PrimitivesSubmitted;
>> >> > + break;
>> >> > + case GL_VERTEX_SHADER_INVOCATIONS_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.VsInvocations;
>> >> > + break;
>> >> > + case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.TessPatches;
>> >> > + break;
>> >> > + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.TessInvocations;
>> >> > + break;
>> >> > + case GL_GEOMETRY_SHADER_INVOCATIONS:
>> >> > + *params = ctx->Const.QueryCounterBits.GsInvocations;
>> >> > + break;
>> >> > + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.GsPrimitives;
>> >> > + break;
>> >> > + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.FsInvocations;
>> >> > + break;
>> >> > + case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.ComputeInvocations;
>> >> > + break;
>> >> > + case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.ClInPrimitives;
>> >> > + break;
>> >> > + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
>> >> > + *params = ctx->Const.QueryCounterBits.ClOutPrimitives;
>> >> > + break;
>> >> > default:
>> >> > _mesa_problem(ctx,
>> >> > "Unknown target in glGetQueryIndexediv(target = %s)",
>> >> > --
>> >> > 2.1.3
>> >> >
>> >> > _______________________________________________
>> >> > mesa-dev mailing list
>> >> > mesa-dev at lists.freedesktop.org
>> >> > http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>> >
>> > --
>> > Ben Widawsky, Intel Open Source Technology Center
>
> --
> Ben Widawsky, Intel Open Source Technology Center
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