Re: [Mesa-dev] [PATCH 2/5] mesa/es3.1: Enable ES 3.1 API and shading language version

[Tapani]

On 05/26/2015 10:37 PM, Ian Romanick wrote:
From: Ian Romanick <ian.d.roman...@intel.com>
This is a bit of a hack for now.  Several of the extensions required for
OpenGL ES 3.1 have no support, at all, in Mesa.  However, with this
patch and a patch to allow MESA_GL_VERSION_OVERRIDE to work with ES
contexts, people can begin testing the ES "version" of the functionality
that is supported.

Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
  src/mesa/main/getstring.c | 16 ++++++++++++----
  src/mesa/main/version.c   | 18 +++++++++++++++++-
  2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/src/mesa/main/getstring.c b/src/mesa/main/getstring.c
index 1b2c7f0..72d99ca 100644
--- a/src/mesa/main/getstring.c
+++ b/src/mesa/main/getstring.c
@@ -72,10 +72,18 @@ shading_language_version(struct gl_context *ctx)
        break;
  
     case API_OPENGLES2:
-      return (ctx->Version < 30)
-         ? (const GLubyte *) "OpenGL ES GLSL ES 1.0.16"
-         : (const GLubyte *) "OpenGL ES GLSL ES 3.00";
-
+      switch (ctx->Version) {
+      case 20:
+         return (const GLubyte *) "OpenGL ES GLSL ES 1.0.16";

There's revision 17 (1.0.17) out there, should we have it here or rather 
just 1.0?

+      case 30:
+         return (const GLubyte *) "OpenGL ES GLSL ES 3.00";
+      case 31:
+         return (const GLubyte *) "OpenGL ES GLSL ES 3.10";
+      default:
+         _mesa_problem(ctx,
+                       "Invalid OpenGL ES version in 
shading_language_version()");
+         return (const GLubyte *) 0;
+      }
     case API_OPENGLES:
        /* fall-through */
  
diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
index 699a0de..e817e2d 100644
--- a/src/mesa/main/version.c
+++ b/src/mesa/main/version.c
@@ -433,7 +433,23 @@ compute_version_es2(const struct gl_extensions *extensions)
                           extensions->EXT_texture_snorm &&
                           extensions->NV_primitive_restart &&
                           extensions->OES_depth_texture_cube_map);
-   if (ver_3_0) {
+   const bool ver_3_1 = (ver_3_0 &&
+                         extensions->ARB_arrays_of_arrays &&
+                         extensions->ARB_compute_shader &&
+                         extensions->ARB_draw_indirect &&
+                         false /*extensions->ARB_framebuffer_no_attachments*/ 
&&
+                         extensions->ARB_shader_atomic_counters &&
+                         extensions->ARB_shader_image_load_store &&
+                         false /*extensions->ARB_shader_image_size*/ &&
+                         false /*extensions->ARB_shader_storage_buffer_object*/ 
&&
+                         extensions->ARB_shading_language_packing &&
+                         extensions->ARB_stencil_texturing &&
+                         extensions->ARB_gpu_shader5 &&
+                         extensions->EXT_shader_integer_mix);
+
+   if (ver_3_1) {
+      return 31;
+   } else if (ver_3_0) {
        return 30;
     } else if (ver_2_0) {
        return 20;

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