From 0a895c379e649b64efd5c0978fb6252dabf9d285 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Fredrik=20H=C3=B6glund?= <fredrik@kde.org>
Date: Mon, 2 Mar 2015 18:52:36 +0100
Subject: [PATCH] mesa: Implement VertexArrayBindingDivisor

Reviewed-by: Laura Ekstrand <laura@jlekstrand.net>
---
 .../glapi/gen/ARB_direct_state_access.xml     |  6 ++
 src/mesa/main/tests/dispatch_sanity.cpp       |  1 +
 src/mesa/main/varray.c                        | 65 ++++++++++++++-----
 src/mesa/main/varray.h                        |  2 +
 4 files changed, 58 insertions(+), 16 deletions(-)

diff --git a/src/mapi/glapi/gen/ARB_direct_state_access.xml b/src/mapi/glapi/gen/ARB_direct_state_access.xml
index 8cc1ab0479d..0b19166c554 100644
--- a/src/mapi/glapi/gen/ARB_direct_state_access.xml
+++ b/src/mapi/glapi/gen/ARB_direct_state_access.xml
@@ -518,6 +518,12 @@
       <param name="bindingindex" type="GLuint" />
    </function>
 
+   <function name="VertexArrayBindingDivisor" offset="assign">
+      <param name="vaobj" type="GLuint" />
+      <param name="bindingindex" type="GLuint" />
+      <param name="divisor" type="GLuint" />
+   </function>
+
    <!-- Sampler object functions -->
 
    <function name="CreateSamplers" offset="assign">
diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
index bc9832177c4..c1e6283cd92 100644
--- a/src/mesa/main/tests/dispatch_sanity.cpp
+++ b/src/mesa/main/tests/dispatch_sanity.cpp
@@ -1027,6 +1027,7 @@ const struct function gl_core_functions_possible[] = {
    { "glVertexArrayAttribIFormat", 45, -1 },
    { "glVertexArrayAttribLFormat", 45, -1 },
    { "glVertexArrayAttribBinding", 45, -1 },
+   { "glVertexArrayBindingDivisor", 45, -1 },
    { "glCreateSamplers", 45, -1 },
    { "glCreateProgramPipelines", 45, -1 },
    { "glCreateQueries", 45, -1 },
diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index 90d5bcbcb90..3afbea8ae06 100644
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -2041,17 +2041,41 @@ _mesa_VertexArrayAttribBinding(GLuint vaobj, GLuint attribIndex, GLuint bindingI
 }
 
 
-void GLAPIENTRY
-_mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor)
+static void
+vertex_array_binding_divisor(struct gl_context *ctx,
+                             struct gl_vertex_array_object *vao,
+                             GLuint bindingIndex, GLuint divisor,
+                             const char *func)
 {
-   GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    if (!ctx->Extensions.ARB_instanced_arrays) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexBindingDivisor()");
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s()", func);
       return;
    }
 
+   /* The ARB_vertex_attrib_binding spec says:
+    *
+    *    "An INVALID_VALUE error is generated if <bindingindex> is greater
+    *     than or equal to the value of MAX_VERTEX_ATTRIB_BINDINGS."
+    */
+   if (bindingIndex >= ctx->Const.MaxVertexAttribBindings) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "%s(bindingindex=%u > "
+                  "GL_MAX_VERTEX_ATTRIB_BINDINGS)",
+                  func, bindingIndex);
+      return;
+   }
+
+   vertex_binding_divisor(ctx, vao, VERT_ATTRIB_GENERIC(bindingIndex), divisor);
+}
+
+
+void GLAPIENTRY
+_mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
    /* The ARB_vertex_attrib_binding spec says:
     *
     *    "An INVALID_OPERATION error is generated if no vertex array object
@@ -2064,21 +2088,30 @@ _mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor)
       return;
    }
 
-   /* The ARB_vertex_attrib_binding spec says:
+   vertex_array_binding_divisor(ctx, ctx->Array.VAO,
+                                bindingIndex, divisor,
+                                "glVertexBindingDivisor");
+}
+
+
+void GLAPIENTRY
+_mesa_VertexArrayBindingDivisor(GLuint vaobj, GLuint bindingIndex, GLuint divisor)
+{
+   struct gl_vertex_array_object *vao;
+   GET_CURRENT_CONTEXT(ctx);
+
+   /* The ARB_direct_state_access specification says:
     *
-    *    "An INVALID_VALUE error is generated if <bindingindex> is greater
-    *     than or equal to the value of MAX_VERTEX_ATTRIB_BINDINGS."
+    *   "An INVALID_OPERATION error is generated by VertexArrayBindingDivisor
+    *    if <vaobj> is not [compatibility profile: zero or] the name of an
+    *    existing vertex array object."
     */
-   if (bindingIndex >= ctx->Const.MaxVertexAttribBindings) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glVertexBindingDivisor(bindingindex=%u > "
-                  "GL_MAX_VERTEX_ATTRIB_BINDINGS)",
-                  bindingIndex);
-      return;
-   }
+   vao = _mesa_lookup_vao_err(ctx, vaobj, "glVertexArrayBindingDivisor");
+   if (!vao)
+       return;
 
-   vertex_binding_divisor(ctx, ctx->Array.VAO,
-                          VERT_ATTRIB_GENERIC(bindingIndex), divisor);
+   vertex_array_binding_divisor(ctx, vao, bindingIndex, divisor,
+                                "glVertexArrayBindingDivisor");
 }
 
 
diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h
index b9544dc7cd7..295c54b31a8 100644
--- a/src/mesa/main/varray.h
+++ b/src/mesa/main/varray.h
@@ -340,6 +340,8 @@ _mesa_VertexArrayAttribBinding(GLuint vaobj, GLuint attribIndex,
 extern void GLAPIENTRY
 _mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor);
 
+extern void GLAPIENTRY
+_mesa_VertexArrayBindingDivisor(GLuint vaobj, GLuint bindingIndex, GLuint divisor);
 
 extern void
 _mesa_copy_client_array(struct gl_context *ctx,
-- 
2.30.2