Mesa (master): st/mesa: expose EXT_gpu_shader4 if GLSL 1.40 is supported

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Module: Mesa
Branch: master
Commit: e71936a731a93ddfb3325c41a5a9756175020ee9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e71936a731a93ddfb3325c41a5a9756175020ee9

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Tue Aug  7 18:32:31 2018 -0400

st/mesa: expose EXT_gpu_shader4 if GLSL 1.40 is supported

Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>
Reviewed-by: Eric Anholt <eric at anholt.net>

---

 docs/relnotes/19.1.0.html              | 2 ++
 src/mesa/state_tracker/st_extensions.c | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/docs/relnotes/19.1.0.html b/docs/relnotes/19.1.0.html
index af516c2c4d9..950b595d200 100644
--- a/docs/relnotes/19.1.0.html
+++ b/docs/relnotes/19.1.0.html
@@ -40,7 +40,9 @@ TBD.
 
 <ul>
 <li>GL_ARB_parallel_shader_compile on all drivers.</li>
+<li>GL_EXT_gpu_shader4 on all GL 3.1 drivers.</li>
 <li>GL_EXT_shader_image_load_formatted on radeonsi.</li>
+<li>GL_EXT_texture_buffer_object on all GL 3.1 drivers.</li>
 <li>GL_EXT_texture_compression_s3tc_srgb on Gallium drivers and i965 (ES extension).</li>
 <li>GL_NV_compute_shader_derivatives on iris and i965.</li>
 <li>GL_KHR_parallel_shader_compile on all drivers.</li>
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index cebc35a76a7..7562213907e 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -1107,6 +1107,13 @@ void st_init_extensions(struct pipe_screen *screen,
    }
 
    if (GLSLVersion >= 140) {
+      /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
+       * we can always expose it if the driver can do 140. Supporting
+       * gpu_shader4 on drivers without GLSL 1.40 is left for a future
+       * pipe cap.
+       */
+      extensions->EXT_gpu_shader4 = GL_TRUE;
+
       if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
          extensions->ARB_enhanced_layouts = GL_TRUE;
    }