[Mesa-dev] [PATCH 17/22] mesa: Implement GetVertexArrayiv

[Fredrik Höglund]

---
 src/mapi/glapi/gen/ARB_direct_state_access.xml |  6 +++++
 src/mesa/main/arrayobj.c                       | 34 ++++++++++++++++++++++++++
 src/mesa/main/arrayobj.h                       |  2 ++
 src/mesa/main/tests/dispatch_sanity.cpp        |  1 +
 4 files changed, 43 insertions(+)

diff --git a/src/mapi/glapi/gen/ARB_direct_state_access.xml b/src/mapi/glapi/gen/ARB_direct_state_access.xml
index 5ab30f2..35857d6 100644
--- a/src/mapi/glapi/gen/ARB_direct_state_access.xml
+++ b/src/mapi/glapi/gen/ARB_direct_state_access.xml
@@ -455,5 +455,11 @@
       <param name="divisor" type="GLuint" />
    </function>
 
+   <function name="GetVertexArrayiv" offset="assign">
+      <param name="vaobj" type="GLuint" />
+      <param name="pname" type="GLenum" />
+      <param name="param" type="GLint *" />
+   </function>
+
 </category>
 </OpenGLAPI>
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index decdc51..87bc993 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -671,3 +671,37 @@ _mesa_VertexArrayElementBuffer(GLuint vaobj, GLuint buffer)
    if (bufObj)
       _mesa_reference_buffer_object(ctx, &vao->IndexBufferObj, bufObj);
 }
+
+
+void GLAPIENTRY
+_mesa_GetVertexArrayiv(GLuint vaobj, GLenum pname, GLint *param)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   struct gl_vertex_array_object *vao;
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   /* The GL_ARB_direct_state_access specification says:
+    *
+    *   "An INVALID_OPERATION error is generated if <vaobj> is not
+    *    [compatibility profile: zero or] the name of an existing
+    *    vertex array object."
+    */
+   vao =_mesa_lookup_vao_err(ctx, vaobj, "glGetVertexArrayiv");
+   if (!vao)
+      return;
+
+   /* The GL_ARB_direct_state_access specification says:
+    *
+    *   "An INVALID_ENUM error is generated if <pname> is not
+    *    ELEMENT_ARRAY_BUFFER_BINDING."
+    */
+   if (pname != GL_ELEMENT_ARRAY_BUFFER_BINDING) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetVertexArrayiv(pname != "
+                  "GL_ELEMENT_ARRAY_BUFFER_BINDING)");
+      return;
+   }
+
+   param[0] = vao->IndexBufferObj->Name;
+}
diff --git a/src/mesa/main/arrayobj.h b/src/mesa/main/arrayobj.h
index 748eaf5..6a4247f 100644
--- a/src/mesa/main/arrayobj.h
+++ b/src/mesa/main/arrayobj.h
@@ -102,4 +102,6 @@ GLboolean GLAPIENTRY _mesa_IsVertexArray( GLuint id );
 
 void GLAPIENTRY _mesa_VertexArrayElementBuffer(GLuint vaobj, GLuint buffer);
 
+void GLAPIENTRY _mesa_GetVertexArrayiv(GLuint vaobj, GLenum pname, GLint *param);
+
 #endif /* ARRAYOBJ_H */
diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
index b805fe6..83f8ecc 100644
--- a/src/mesa/main/tests/dispatch_sanity.cpp
+++ b/src/mesa/main/tests/dispatch_sanity.cpp
@@ -981,6 +981,7 @@ const struct function gl_core_functions_possible[] = {
    { "glVertexArrayAttribLFormat", 45, -1 },
    { "glVertexArrayAttribBinding", 45, -1 },
    { "glVertexArrayBindingDivisor", 45, -1 },
+   { "glGetVertexArrayiv", 45, -1 },
 
    /* GL_EXT_polygon_offset_clamp */
    { "glPolygonOffsetClampEXT", 11, -1 },
-- 
1.8.5.3