vrend: Add geometry shaders on the GLES 3.1 host

This is needed to make tests/test_virgl_cmd pass

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/vrend_renderer.c

@@ -165,7 +165,7 @@ static const  struct {
    [feat_dual_src_blend] = { 33, UNAVAIL, { "GL_ARB_blend_func_extended" } },
    [feat_fb_no_attach] = { 43, 31, { "GL_ARB_framebuffer_no_attachments" } },
    [feat_framebuffer_fetch] = { UNAVAIL, UNAVAIL, { "GL_EXT_shader_framebuffer_fetch" } },
-   [feat_geometry_shader] = { 32, UNAVAIL, {} },
+   [feat_geometry_shader] = { 32, 32, {"GL_EXT_geometry_shader", "GL_OES_geometry_shader"} },
    [feat_gl_conditional_render] = { 30, UNAVAIL, {} },
    [feat_gl_prim_restart] = { 31, 30, {} },
    [feat_gles_khr_robustness] = { UNAVAIL, UNAVAIL, { "GL_KHR_robustness" } },

src/vrend_shader.c

@@ -3945,6 +3945,8 @@ static char *emit_header(struct dump_ctx *ctx, char *glsl_hdr)
       STRCAT_WITH_RET(glsl_hdr, buf);
       if (ctx->shader_req_bits & SHADER_REQ_SAMPLER_MS)
          STRCAT_WITH_RET(glsl_hdr, "#extension GL_OES_texture_storage_multisample_2d_array : require\n");
+      if (ctx->prog_type == TGSI_PROCESSOR_GEOMETRY)
+         STRCAT_WITH_RET(glsl_hdr, "#extension GL_EXT_geometry_shader : require\n");
       PAD_GPU_SHADER5(glsl_hdr);
       STRCAT_WITH_RET(glsl_hdr, "precision highp float;\n");
       STRCAT_WITH_RET(glsl_hdr, "precision highp int;\n");