mesa: Implement EnableVertexArrayAttrib

Reviewed-by: Laura Ekstrand <laura@jlekstrand.net>

1 files changed, 37 insertions, 9 deletions

diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index b5370a8..06b1cbb 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -718,20 +718,18 @@ _mesa_VertexAttribLPointer(GLuint index, GLint size, GLenum type,
                 size, type, stride, GL_TRUE, GL_FALSE, GL_TRUE, ptr);
 }
 
-void GLAPIENTRY
-_mesa_EnableVertexAttribArray(GLuint index)
-{
-   struct gl_vertex_array_object *vao;
-   GET_CURRENT_CONTEXT(ctx);
 
+static void
+enable_vertex_array_attrib(struct gl_context *ctx,
+                           struct gl_vertex_array_object *vao,
+                           GLuint index,
+                           const char *func)
+{
    if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glEnableVertexAttribArrayARB(index)");
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
       return;
    }
 
-   vao = ctx->Array.VAO;
-
    assert(VERT_ATTRIB_GENERIC(index) < ARRAY_SIZE(vao->VertexAttrib));
 
    if (!vao->VertexAttrib[VERT_ATTRIB_GENERIC(index)].Enabled) {
@@ -744,6 +742,36 @@ _mesa_EnableVertexAttribArray(GLuint index)
 }
 
 
+void GLAPIENTRY
+_mesa_EnableVertexAttribArray(GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   enable_vertex_array_attrib(ctx, ctx->Array.VAO, index,
+                              "glEnableVertexAttribArray");
+}
+
+
+void GLAPIENTRY
+_mesa_EnableVertexArrayAttrib(GLuint vaobj, GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_vertex_array_object *vao;
+
+   /* The ARB_direct_state_access specification says:
+    *
+    *   "An INVALID_OPERATION error is generated by EnableVertexArrayAttrib
+    *    and DisableVertexArrayAttrib if <vaobj> is not
+    *    [compatibility profile: zero or] the name of an existing vertex
+    *    array object."
+    */
+   vao = _mesa_lookup_vao_err(ctx, vaobj, "glEnableVertexArrayAttrib");
+   if (!vao)
+      return;
+
+   enable_vertex_array_attrib(ctx, vao, index, "glEnableVertexArrayAttrib");
+}
+
+
 static void
 disable_vertex_array_attrib(struct gl_context *ctx,
                             struct gl_vertex_array_object *vao,