[Mesa-dev] [PATCH 1/7] mesa: implement ARB/KHR_parallel_shader_compile
Ian Romanick
idr at freedesktop.org
Thu Jan 3 19:41:41 UTC 2019
On 1/3/19 11:40 AM, Ian Romanick wrote:
> On 11/28/18 6:59 PM, Marek Olšák wrote:
>> From: Marek Olšák <marek.olsak at amd.com>
>>
>> Tested by piglit.
>
> It doesn't look like there are any piglit test
Ignore that. I started typing, checked the piglit list, then forgot to
delete it.
>> ---
>> docs/features.txt | 2 +-
>> docs/relnotes/19.0.0.html | 2 ++
>> src/mapi/glapi/gen/gl_API.xml | 15 ++++++++++++++-
>> src/mesa/main/dd.h | 7 +++++++
>> src/mesa/main/extensions_table.h | 2 ++
>> src/mesa/main/get_hash_params.py | 3 +++
>> src/mesa/main/hint.c | 12 ++++++++++++
>> src/mesa/main/hint.h | 4 ++++
>> src/mesa/main/mtypes.h | 1 +
>> src/mesa/main/shaderapi.c | 10 ++++++++++
>> src/mesa/main/tests/dispatch_sanity.cpp | 4 ++++
>> 11 files changed, 60 insertions(+), 2 deletions(-)
>>
>> diff --git a/docs/features.txt b/docs/features.txt
>> index 8999e42519c..7b827de6a92 100644
>> --- a/docs/features.txt
>> +++ b/docs/features.txt
>> @@ -295,21 +295,21 @@ GLES3.2, GLSL ES 3.2 -- all DONE: i965/gen9+, radeonsi, virgl
>> GL_OES_texture_storage_multisample_2d_array DONE (all drivers that support GL_ARB_texture_multisample)
>>
>> Khronos, ARB, and OES extensions that are not part of any OpenGL or OpenGL ES version:
>>
>> GL_ARB_bindless_texture DONE (nvc0, radeonsi)
>> GL_ARB_cl_event not started
>> GL_ARB_compute_variable_group_size DONE (nvc0, radeonsi)
>> GL_ARB_ES3_2_compatibility DONE (i965/gen8+, radeonsi, virgl)
>> GL_ARB_fragment_shader_interlock DONE (i965)
>> GL_ARB_gpu_shader_int64 DONE (i965/gen8+, nvc0, radeonsi, softpipe, llvmpipe)
>> - GL_ARB_parallel_shader_compile not started, but Chia-I Wu did some related work in 2014
>> + GL_ARB_parallel_shader_compile DONE (all drivers)
>> GL_ARB_post_depth_coverage DONE (i965, nvc0)
>> GL_ARB_robustness_isolation not started
>> GL_ARB_sample_locations DONE (nvc0)
>> GL_ARB_seamless_cubemap_per_texture DONE (freedreno, i965, nvc0, radeonsi, r600, softpipe, swr, virgl)
>> GL_ARB_shader_ballot DONE (i965/gen8+, nvc0, radeonsi)
>> GL_ARB_shader_clock DONE (i965/gen7+, nv50, nvc0, r600, radeonsi, virgl)
>> GL_ARB_shader_stencil_export DONE (i965/gen9+, r600, radeonsi, softpipe, llvmpipe, swr, virgl)
>> GL_ARB_shader_viewport_layer_array DONE (i965/gen6+, nvc0, radeonsi)
>> GL_ARB_sparse_buffer DONE (radeonsi/CIK+)
>> GL_ARB_sparse_texture not started
>> diff --git a/docs/relnotes/19.0.0.html b/docs/relnotes/19.0.0.html
>> index bc1776e8f4e..540482bca5f 100644
>> --- a/docs/relnotes/19.0.0.html
>> +++ b/docs/relnotes/19.0.0.html
>> @@ -33,24 +33,26 @@ Compatibility contexts may report a lower version depending on each driver.
>> <h2>SHA256 checksums</h2>
>> <pre>
>> TBD.
>> </pre>
>>
>>
>> <h2>New features</h2>
>>
>> <ul>
>> <li>GL_AMD_texture_texture4 on all GL 4.0 drivers.</li>
>> +<li>GL_ARB_parallel_shader_compile on all drivers.</li>
>> <li>GL_EXT_shader_implicit_conversions on all drivers (ES extension).</li>
>> <li>GL_EXT_texture_compression_bptc on all GL 4.0 drivers (ES extension).<li>
>> <li>GL_EXT_texture_compression_rgtc on all GL 3.0 drivers (ES extension).<li>
>> <li>GL_EXT_texture_view on drivers supporting texture views (ES extension).<li>
>> +<li>GL_KHR_parallel_shader_compile on all drivers.</li>
>> <li>GL_OES_texture_view on drivers supporting texture views (ES extension).</li>
>> </ul>
>>
>> <h2>Bug fixes</h2>
>>
>> <ul>
>> <li>TBD</li>
>> </ul>
>>
>> <h2>Changes</h2>
>> diff --git a/src/mapi/glapi/gen/gl_API.xml b/src/mapi/glapi/gen/gl_API.xml
>> index f4d0808f13b..4ce691b361b 100644
>> --- a/src/mapi/glapi/gen/gl_API.xml
>> +++ b/src/mapi/glapi/gen/gl_API.xml
>> @@ -8402,21 +8402,34 @@
>> <param name="maxX" type="GLfloat"/>
>> <param name="maxY" type="GLfloat"/>
>> <param name="maxZ" type="GLfloat"/>
>> <param name="maxW" type="GLfloat"/>
>> </function>
>>
>> </category>
>>
>> <xi:include href="ARB_gpu_shader_int64.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
>>
>> -<!-- ARB extension 179 - 189 -->
>> +<category name="ARB_parallel_shader_compile" number="179">
>> + <enum name="MAX_SHADER_COMPILER_THREADS_ARB" value="0x91B0"/>
>> + <enum name="COMPLETION_STATUS_ARB" value="0x91B1"/>
>> +
>> + <function name="MaxShaderCompilerThreadsKHR" es2="2.0">
>> + <param name="count" type="GLuint"/>
>> + </function>
>> +
>> + <function name="MaxShaderCompilerThreadsARB" alias="MaxShaderCompilerThreadsKHR">
>> + <param name="count" type="GLuint"/>
>> + </function>
>> +</category>
>> +
>> +<!-- ARB extension 180 - 189 -->
>>
>> <xi:include href="ARB_gl_spirv.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
>>
>> <!-- Non-ARB extensions sorted by extension number. -->
>>
>> <category name="GL_EXT_blend_color" number="2">
>> <enum name="CONSTANT_COLOR_EXT" value="0x8001"/>
>> <enum name="ONE_MINUS_CONSTANT_COLOR_EXT" value="0x8002"/>
>> <enum name="CONSTANT_ALPHA_EXT" value="0x8003"/>
>> <enum name="ONE_MINUS_CONSTANT_ALPHA_EXT" value="0x8004"/>
>> diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
>> index f14c3e04e91..92b6ecac33c 100644
>> --- a/src/mesa/main/dd.h
>> +++ b/src/mesa/main/dd.h
>> @@ -1292,20 +1292,27 @@ struct dd_function_table {
>> /**
>> * Called to initialize gl_program::driver_cache_blob (and size) with a
>> * ralloc allocated buffer.
>> *
>> * This buffer will be saved and restored as part of the gl_program
>> * serialization and deserialization.
>> */
>> void (*ShaderCacheSerializeDriverBlob)(struct gl_context *ctx,
>> struct gl_program *prog);
>> /*@}*/
>> +
>> + /**
>> + * \name Set the number of compiler threads for ARB_parallel_shader_compile
>> + */
>> + void (*SetMaxShaderCompilerThreads)(struct gl_context *ctx, unsigned count);
>> + bool (*GetShaderProgramCompletionStatus)(struct gl_context *ctx,
>> + struct gl_shader_program *shprog);
>> };
>>
>>
>> /**
>> * Per-vertex functions.
>> *
>> * These are the functions which can appear between glBegin and glEnd.
>> * Depending on whether we're inside or outside a glBegin/End pair
>> * and whether we're in immediate mode or building a display list, these
>> * functions behave differently. This structure allows us to switch
>> diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
>> index 2a3e1ab32ca..075d72f16c2 100644
>> --- a/src/mesa/main/extensions_table.h
>> +++ b/src/mesa/main/extensions_table.h
>> @@ -92,20 +92,21 @@ EXT(ARB_internalformat_query , ARB_internalformat_query
>> EXT(ARB_internalformat_query2 , ARB_internalformat_query2 , GLL, GLC, x , x , 2013)
>> EXT(ARB_invalidate_subdata , dummy_true , GLL, GLC, x , x , 2012)
>> EXT(ARB_map_buffer_alignment , dummy_true , GLL, GLC, x , x , 2011)
>> EXT(ARB_map_buffer_range , ARB_map_buffer_range , GLL, GLC, x , x , 2008)
>> EXT(ARB_multi_bind , dummy_true , GLL, GLC, x , x , 2013)
>> EXT(ARB_multi_draw_indirect , ARB_draw_indirect , GLL, GLC, x , x , 2012)
>> EXT(ARB_multisample , dummy_true , GLL, x , x , x , 1994)
>> EXT(ARB_multitexture , dummy_true , GLL, x , x , x , 1998)
>> EXT(ARB_occlusion_query , ARB_occlusion_query , GLL, x , x , x , 2001)
>> EXT(ARB_occlusion_query2 , ARB_occlusion_query2 , GLL, GLC, x , x , 2003)
>> +EXT(ARB_parallel_shader_compile , dummy_true , GLL, GLC, x , x , 2015)
>> EXT(ARB_pipeline_statistics_query , ARB_pipeline_statistics_query , GLL, GLC, x , x , 2014)
>> EXT(ARB_pixel_buffer_object , EXT_pixel_buffer_object , GLL, GLC, x , x , 2004)
>> EXT(ARB_point_parameters , EXT_point_parameters , GLL, x , x , x , 1997)
>> EXT(ARB_point_sprite , ARB_point_sprite , GLL, GLC, x , x , 2003)
>> EXT(ARB_polygon_offset_clamp , ARB_polygon_offset_clamp , GLL, GLC, x , x , 2017)
>> EXT(ARB_post_depth_coverage , ARB_post_depth_coverage , GLL, GLC, x , x, 2015)
>> EXT(ARB_program_interface_query , dummy_true , GLL, GLC, x , x , 2012)
>> EXT(ARB_provoking_vertex , EXT_provoking_vertex , GLL, GLC, x , x , 2009)
>> EXT(ARB_query_buffer_object , ARB_query_buffer_object , GLL, GLC, x , x , 2013)
>> EXT(ARB_robust_buffer_access_behavior , ARB_robust_buffer_access_behavior , GLL, GLC, x , x , 2012)
>> @@ -324,20 +325,21 @@ EXT(INGR_blend_func_separate , EXT_blend_func_separate
>> EXT(INTEL_conservative_rasterization , INTEL_conservative_rasterization , x , GLC, x , 31, 2013)
>> EXT(INTEL_fragment_shader_ordering , INTEL_fragment_shader_ordering , GLL, GLC, x , x , 2013)
>> EXT(INTEL_performance_query , INTEL_performance_query , GLL, GLC, x , ES2, 2013)
>> EXT(INTEL_shader_atomic_float_minmax , INTEL_shader_atomic_float_minmax , GLL, GLC, x , x , 2018)
>>
>> EXT(KHR_blend_equation_advanced , KHR_blend_equation_advanced , GLL, GLC, x , ES2, 2014)
>> EXT(KHR_blend_equation_advanced_coherent , KHR_blend_equation_advanced_coherent , GLL, GLC, x , ES2, 2014)
>> EXT(KHR_context_flush_control , dummy_true , GLL, GLC, x , ES2, 2014)
>> EXT(KHR_debug , dummy_true , GLL, GLC, 11, ES2, 2012)
>> EXT(KHR_no_error , dummy_true , GLL, GLC, ES1, ES2, 2015)
>> +EXT(KHR_parallel_shader_compile , dummy_true , GLL, GLC, x , ES2, 2017)
>> EXT(KHR_robust_buffer_access_behavior , ARB_robust_buffer_access_behavior , GLL, GLC, x , ES2, 2014)
>> EXT(KHR_robustness , KHR_robustness , GLL, GLC, x , ES2, 2012)
>> EXT(KHR_texture_compression_astc_hdr , KHR_texture_compression_astc_hdr , GLL, GLC, x , ES2, 2012)
>> EXT(KHR_texture_compression_astc_ldr , KHR_texture_compression_astc_ldr , GLL, GLC, x , ES2, 2012)
>> EXT(KHR_texture_compression_astc_sliced_3d , KHR_texture_compression_astc_sliced_3d , GLL, GLC, x , ES2, 2015)
>>
>> EXT(MESA_framebuffer_flip_y , MESA_framebuffer_flip_y , x, x, x , 31, 2018)
>> EXT(MESA_pack_invert , MESA_pack_invert , GLL, GLC, x , x , 2002)
>> EXT(MESA_shader_integer_functions , MESA_shader_integer_functions , GLL, GLC, x , 30, 2016)
>> EXT(MESA_texture_signed_rgba , EXT_texture_snorm , GLL, GLC, x , x , 2009)
>> diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
>> index 0b8ec9ea0bb..579c6e459aa 100644
>> --- a/src/mesa/main/get_hash_params.py
>> +++ b/src/mesa/main/get_hash_params.py
>> @@ -273,20 +273,23 @@ descriptor=[
>> [ "PACK_SKIP_ROWS", "CONTEXT_INT(Pack.SkipRows), NO_EXTRA" ],
>> [ "UNPACK_ROW_LENGTH", "CONTEXT_INT(Unpack.RowLength), NO_EXTRA" ],
>> [ "UNPACK_SKIP_PIXELS", "CONTEXT_INT(Unpack.SkipPixels), NO_EXTRA" ],
>> [ "UNPACK_SKIP_ROWS", "CONTEXT_INT(Unpack.SkipRows), NO_EXTRA" ],
>> [ "UNPACK_SKIP_IMAGES", "CONTEXT_INT(Unpack.SkipImages), NO_EXTRA" ],
>> [ "UNPACK_IMAGE_HEIGHT", "CONTEXT_INT(Unpack.ImageHeight), NO_EXTRA" ],
>>
>> # GL_ARB_draw_buffers
>> [ "MAX_DRAW_BUFFERS_ARB", "CONTEXT_INT(Const.MaxDrawBuffers), NO_EXTRA" ],
>>
>> +# GL_ARB_parallel_shader_compile
>> + [ "MAX_SHADER_COMPILER_THREADS_ARB", "CONTEXT_INT(Hint.MaxShaderCompilerThreads), NO_EXTRA" ],
>> +
>> # GL_EXT_framebuffer_object / GL_NV_fbo_color_attachments
>> [ "MAX_COLOR_ATTACHMENTS", "CONTEXT_INT(Const.MaxColorAttachments), NO_EXTRA" ],
>>
>> # GL_ARB_draw_buffers / GL_NV_draw_buffers (for ES 2.0)
>> [ "DRAW_BUFFER0_ARB", "BUFFER_ENUM16(ColorDrawBuffer[0]), NO_EXTRA" ],
>> [ "DRAW_BUFFER1_ARB", "BUFFER_ENUM16(ColorDrawBuffer[1]), extra_valid_draw_buffer" ],
>> [ "DRAW_BUFFER2_ARB", "BUFFER_ENUM16(ColorDrawBuffer[2]), extra_valid_draw_buffer" ],
>> [ "DRAW_BUFFER3_ARB", "BUFFER_ENUM16(ColorDrawBuffer[3]), extra_valid_draw_buffer" ],
>> [ "DRAW_BUFFER4_ARB", "BUFFER_ENUM16(ColorDrawBuffer[4]), extra_valid_draw_buffer" ],
>> [ "DRAW_BUFFER5_ARB", "BUFFER_ENUM16(ColorDrawBuffer[5]), extra_valid_draw_buffer" ],
>> diff --git a/src/mesa/main/hint.c b/src/mesa/main/hint.c
>> index 5d0c15d35ab..2bcaeebc4aa 100644
>> --- a/src/mesa/main/hint.c
>> +++ b/src/mesa/main/hint.c
>> @@ -123,27 +123,39 @@ _mesa_Hint( GLenum target, GLenum mode )
>> default:
>> goto invalid_target;
>> }
>> return;
>>
>> invalid_target:
>> _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
>> return;
>> }
>>
>> +/* GL_ARB_parallel_shader_compile */
>> +void GLAPIENTRY
>> +_mesa_MaxShaderCompilerThreadsKHR(GLuint count)
>> +{
>> + GET_CURRENT_CONTEXT(ctx);
>> +
>> + ctx->Hint.MaxShaderCompilerThreads = count;
>> +
>> + if (ctx->Driver.SetMaxShaderCompilerThreads)
>> + ctx->Driver.SetMaxShaderCompilerThreads(ctx, count);
>> +}
>>
>> /**********************************************************************/
>> /***** Initialization *****/
>> /**********************************************************************/
>>
>> void _mesa_init_hint( struct gl_context * ctx )
>> {
>> /* Hint group */
>> ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;
>> ctx->Hint.PointSmooth = GL_DONT_CARE;
>> ctx->Hint.LineSmooth = GL_DONT_CARE;
>> ctx->Hint.PolygonSmooth = GL_DONT_CARE;
>> ctx->Hint.Fog = GL_DONT_CARE;
>> ctx->Hint.TextureCompression = GL_DONT_CARE;
>> ctx->Hint.GenerateMipmap = GL_DONT_CARE;
>> ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE;
>> + ctx->Hint.MaxShaderCompilerThreads = 0xffffffff;
>> }
>> diff --git a/src/mesa/main/hint.h b/src/mesa/main/hint.h
>> index 87febfeecc0..2d7c710af26 100644
>> --- a/src/mesa/main/hint.h
>> +++ b/src/mesa/main/hint.h
>> @@ -36,14 +36,18 @@
>> #ifndef HINT_H
>> #define HINT_H
>>
>> #include "glheader.h"
>>
>> struct gl_context;
>>
>> extern void GLAPIENTRY
>> _mesa_Hint( GLenum target, GLenum mode );
>>
>> +/* GL_KHR_parallel_shader_compile */
>> +extern void GLAPIENTRY
>> +_mesa_MaxShaderCompilerThreadsKHR(GLuint count);
>> +
>> extern void
>> _mesa_init_hint( struct gl_context * ctx );
>>
>> #endif
>> diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> index 157d45bc0ba..5b2b29d1f5d 100644
>> --- a/src/mesa/main/mtypes.h
>> +++ b/src/mesa/main/mtypes.h
>> @@ -596,20 +596,21 @@ struct gl_fog_attrib
>> struct gl_hint_attrib
>> {
>> GLenum16 PerspectiveCorrection;
>> GLenum16 PointSmooth;
>> GLenum16 LineSmooth;
>> GLenum16 PolygonSmooth;
>> GLenum16 Fog;
>> GLenum16 TextureCompression; /**< GL_ARB_texture_compression */
>> GLenum16 GenerateMipmap; /**< GL_SGIS_generate_mipmap */
>> GLenum16 FragmentShaderDerivative; /**< GL_ARB_fragment_shader */
>> + GLuint MaxShaderCompilerThreads; /**< GL_ARB_parallel_shader_compile */
>> };
>>
>>
>> /**
>> * Lighting attribute group (GL_LIGHT_BIT).
>> */
>> struct gl_light_attrib
>> {
>> struct gl_light Light[MAX_LIGHTS]; /**< Array of light sources */
>> struct gl_lightmodel Model; /**< Lighting model */
>> diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
>> index 2ea8d965aba..01342c04e8f 100644
>> --- a/src/mesa/main/shaderapi.c
>> +++ b/src/mesa/main/shaderapi.c
>> @@ -682,20 +682,26 @@ get_programiv(struct gl_context *ctx, GLuint program, GLenum pname,
>> || _mesa_is_gles3(ctx);
>>
>> if (!shProg) {
>> return;
>> }
>>
>> switch (pname) {
>> case GL_DELETE_STATUS:
>> *params = shProg->DeletePending;
>> return;
>> + case GL_COMPLETION_STATUS_ARB:
>> + if (ctx->Driver.GetShaderProgramCompletionStatus)
>> + *params = ctx->Driver.GetShaderProgramCompletionStatus(ctx, shProg);
>> + else
>> + *params = GL_TRUE;
>> + return;
>> case GL_LINK_STATUS:
>> *params = shProg->data->LinkStatus ? GL_TRUE : GL_FALSE;
>> return;
>> case GL_VALIDATE_STATUS:
>> *params = shProg->data->Validated;
>> return;
>> case GL_INFO_LOG_LENGTH:
>> *params = (shProg->data->InfoLog && shProg->data->InfoLog[0] != '\0') ?
>> strlen(shProg->data->InfoLog) + 1 : 0;
>> return;
>> @@ -953,20 +959,24 @@ get_shaderiv(struct gl_context *ctx, GLuint name, GLenum pname, GLint *params)
>> return;
>> }
>>
>> switch (pname) {
>> case GL_SHADER_TYPE:
>> *params = shader->Type;
>> break;
>> case GL_DELETE_STATUS:
>> *params = shader->DeletePending;
>> break;
>> + case GL_COMPLETION_STATUS_ARB:
>> + /* _mesa_glsl_compile_shader is not offloaded to other threads. */
>> + *params = GL_TRUE;
>> + return;
>
> So... glComplieShader is completely serial, but glLinkShader can operate
> in parallel? That differs quite a bit from what Chia-I was doing... and
> explains why a lot the threading fixes he had is absent here. Most of
> the expensive work happens in glLinkShader, so this seems reasonable.
> Have you been able to measure this on the start-up time of any real apps?
>
>> case GL_COMPILE_STATUS:
>> *params = shader->CompileStatus ? GL_TRUE : GL_FALSE;
>> break;
>> case GL_INFO_LOG_LENGTH:
>> *params = (shader->InfoLog && shader->InfoLog[0] != '\0') ?
>> strlen(shader->InfoLog) + 1 : 0;
>> break;
>> case GL_SHADER_SOURCE_LENGTH:
>> *params = shader->Source ? strlen((char *) shader->Source) + 1 : 0;
>> break;
>> diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
>> index fb2acfbdeea..6aa6b87882e 100644
>> --- a/src/mesa/main/tests/dispatch_sanity.cpp
>> +++ b/src/mesa/main/tests/dispatch_sanity.cpp
>> @@ -1191,20 +1191,22 @@ const struct function common_desktop_functions_possible[] = {
>> { "glEvaluateDepthValuesARB", 30, -1 },
>>
>> /* GL_ARB_indirect_parameters */
>> { "glMultiDrawArraysIndirectCountARB", 11, -1 },
>> { "glMultiDrawElementsIndirectCountARB", 11, -1 },
>>
>> /* GL_AMD_framebuffer_multisample_advanced */
>> { "glRenderbufferStorageMultisampleAdvancedAMD", 11, -1 },
>> { "glNamedRenderbufferStorageMultisampleAdvancedAMD", 11, -1 },
>>
>> + { "glMaxShaderCompilerThreadsKHR", 11, -1 },
>> +
>> { NULL, 0, -1 }
>> };
>>
>> const struct function gl_compatibility_functions_possible[] = {
>> { "glNewList", 10, _gloffset_NewList },
>> { "glEndList", 10, _gloffset_EndList },
>> { "glCallList", 10, _gloffset_CallList },
>> { "glCallLists", 10, _gloffset_CallLists },
>> { "glDeleteLists", 10, _gloffset_DeleteLists },
>> { "glGenLists", 10, _gloffset_GenLists },
>> @@ -2229,20 +2231,22 @@ const struct function gles2_functions_possible[] = {
>>
>> /* GL_NV_conservative_raster */
>> { "glSubpixelPrecisionBiasNV", 20, -1 },
>>
>> /* GL_NV_conservative_raster_dilate */
>> { "glConservativeRasterParameterfNV", 20, -1 },
>>
>> /* GL_NV_conservative_raster_pre_snap_triangles */
>> { "glConservativeRasterParameteriNV", 20, -1 },
>>
>> + { "glMaxShaderCompilerThreadsKHR", 20, -1 },
>> +
>> { NULL, 0, -1 }
>> };
>>
>> const struct function gles3_functions_possible[] = {
>> // We check for the aliased -EXT version in GLES 2
>> // { "glBeginQuery", 30, -1 },
>> { "glBeginTransformFeedback", 30, -1 },
>> { "glBindBufferBase", 30, -1 },
>> { "glBindBufferRange", 30, -1 },
>> { "glBindSampler", 30, -1 },
>>
>
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