glsl ES: Fix magnitude of gl_MaxVertexUniformVectors.

Previously, we set it equal to MaxVertexUniformComponents.  It should
be MaxVertexUniformComponents / 4.

NOTE: This is a candidate for the stable branches.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index f4ac205..58019c6 100644 (file)
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -533,7 +533,7 @@ generate_common_ES_uniforms(exec_list *instructions,
    add_builtin_constant(instructions, symtab, "gl_MaxVertexAttribs",
                        state->Const.MaxVertexAttribs);
    add_builtin_constant(instructions, symtab, "gl_MaxVertexUniformVectors",
-                       state->Const.MaxVertexUniformComponents);
+                       state->Const.MaxVertexUniformComponents / 4);
    add_builtin_constant(instructions, symtab, "gl_MaxVertexTextureImageUnits",
                        state->Const.MaxVertexTextureImageUnits);
    add_builtin_constant(instructions, symtab, "gl_MaxCombinedTextureImageUnits",