mesa: Expose MAX_FRAGMENT_INPUT_COMPONENTS on ES3 and desktop 3.2.

piglit OpenGL ES 3.0/minmax now passes.  This was also one of the subcase
failures in OpenGL 3.2/minmax (and still is, because our value is too low
for 3.2, but at least we report what it is).

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/main/get.c

@@ -407,6 +407,12 @@ static const int extra_gl30_es3[] = {
     EXTRA_END,
 };
 
+static const int extra_gl32_es3[] = {
+    EXTRA_VERSION_32,
+    EXTRA_API_ES3,
+    EXTRA_END,
+};
+
 static const int
 extra_ARB_vertex_program_api_es2[] = {
    EXT(ARB_vertex_program),
@@ -724,6 +730,7 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
       break;
 
    case GL_MAX_VARYING_FLOATS_ARB:
+   case GL_MAX_FRAGMENT_INPUT_COMPONENTS:
       v->value_int = ctx->Const.MaxVarying * 4;
       break;
 

src/mesa/main/get_hash_params.py

@@ -329,6 +329,9 @@ descriptor=[
   [ "MAJOR_VERSION", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
   [ "MINOR_VERSION", "LOC_CUSTOM, TYPE_INT, 0, extra_gl30_es3" ],
 
+  # GL 3.0 / GLES3
+  [ "MAX_FRAGMENT_INPUT_COMPONENTS", "LOC_CUSTOM, TYPE_INT, 0, extra_gl32_es3" ],
+
 # GL_ARB_ES3_compatibility
   [ "MAX_ELEMENT_INDEX", "CONTEXT_INT64(Const.MaxElementIndex), extra_ARB_ES3_compatibility_api_es3"],