mesa: Rename ElementArrayBufferObj to IndexBufferObj.

DirectX and most hardware documentation use the term "Index Buffer" to
refer to a buffer containing indexes into arrays of vertex data, which
allows random access to vertex data, rather than sequential access.

OpenGL uses a different term for this concept: "Element Array Buffer".
However, "Index Buffer" has become much more widespread.  A quick
Google search shows 29,300 hits for "Element Array Buffer" vs.
82,300 hits for "Index Buffer."

Arguably, "Index Buffer" is clearer: an "element of an array" (or list)
usually refers to an actual item stored in the array, not the index used
to refer to it.

The terminology is also already used in Mesa: some VBO module code for
dealing with ElementArrayBufferObj names local variables "ib".

Completely generated by:
$ find . -type f -print0 | xargs -0 sed -i \
  's/ElementArrayBufferObj/IndexBufferObj/g'

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Brian Paul <[email protected]>

7 files changed, 24 insertions, 24 deletions

diff --git a/src/mesa/main/api_arrayelt.c b/src/mesa/main/api_arrayelt.c
index fdda1dc46c9..29a57c8e51d 100644
--- a/src/mesa/main/api_arrayelt.c
+++ b/src/mesa/main/api_arrayelt.c
@@ -1600,7 +1600,7 @@ _ae_update_state(struct gl_context *ctx)
       aa++;
    }
 
-   check_vbo(actx, vao->ElementArrayBufferObj);
+   check_vbo(actx, vao->IndexBufferObj);
 
    ASSERT(at - actx->attribs <= VERT_ATTRIB_MAX);
    ASSERT(aa - actx->arrays < 32);
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 41dfc3806e5..af469e046fc 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -180,7 +180,7 @@ check_index_bounds(struct gl_context *ctx, GLsizei count, GLenum type,
    memset(&ib, 0, sizeof(ib));
    ib.type = type;
    ib.ptr = indices;
-   ib.obj = ctx->Array.VAO->ElementArrayBufferObj;
+   ib.obj = ctx->Array.VAO->IndexBufferObj;
 
    vbo_get_minmax_indices(ctx, &prim, &ib, &min, &max, 1);
 
@@ -435,10 +435,10 @@ _mesa_validate_DrawElements(struct gl_context *ctx,
       return GL_FALSE;
 
    /* Vertex buffer object tests */
-   if (_mesa_is_bufferobj(ctx->Array.VAO->ElementArrayBufferObj)) {
+   if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
       /* use indices in the buffer object */
       /* make sure count doesn't go outside buffer bounds */
-      if (index_bytes(type, count) > ctx->Array.VAO->ElementArrayBufferObj->Size) {
+      if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) {
          _mesa_warning(ctx, "glDrawElements index out of buffer bounds");
          return GL_FALSE;
       }
@@ -493,12 +493,12 @@ _mesa_validate_MultiDrawElements(struct gl_context *ctx,
       return GL_FALSE;
 
    /* Vertex buffer object tests */
-   if (_mesa_is_bufferobj(ctx->Array.VAO->ElementArrayBufferObj)) {
+   if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
       /* use indices in the buffer object */
       /* make sure count doesn't go outside buffer bounds */
       for (i = 0; i < primcount; i++) {
          if (index_bytes(type, count[i]) >
-             ctx->Array.VAO->ElementArrayBufferObj->Size) {
+             ctx->Array.VAO->IndexBufferObj->Size) {
             _mesa_warning(ctx,
                           "glMultiDrawElements index out of buffer bounds");
             return GL_FALSE;
@@ -570,10 +570,10 @@ _mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode,
       return GL_FALSE;
 
    /* Vertex buffer object tests */
-   if (_mesa_is_bufferobj(ctx->Array.VAO->ElementArrayBufferObj)) {
+   if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
       /* use indices in the buffer object */
       /* make sure count doesn't go outside buffer bounds */
-      if (index_bytes(type, count) > ctx->Array.VAO->ElementArrayBufferObj->Size) {
+      if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) {
          _mesa_warning(ctx, "glDrawRangeElements index out of buffer bounds");
          return GL_FALSE;
       }
@@ -769,10 +769,10 @@ _mesa_validate_DrawElementsInstanced(struct gl_context *ctx,
       return GL_FALSE;
 
    /* Vertex buffer object tests */
-   if (_mesa_is_bufferobj(ctx->Array.VAO->ElementArrayBufferObj)) {
+   if (_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
       /* use indices in the buffer object */
       /* make sure count doesn't go outside buffer bounds */
-      if (index_bytes(type, count) > ctx->Array.VAO->ElementArrayBufferObj->Size) {
+      if (index_bytes(type, count) > ctx->Array.VAO->IndexBufferObj->Size) {
          _mesa_warning(ctx,
                        "glDrawElementsInstanced index out of buffer bounds");
          return GL_FALSE;
@@ -901,7 +901,7 @@ valid_draw_indirect_elements(struct gl_context *ctx,
     * If no element array buffer is bound, an INVALID_OPERATION error is
     * generated.
     */
-   if (!_mesa_is_bufferobj(ctx->Array.VAO->ElementArrayBufferObj)) {
+   if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "%s(no buffer bound to GL_ELEMENT_ARRAY_BUFFER)", name);
       return GL_FALSE;
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index 0caae43a35b..46ccbdc085c 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -116,7 +116,7 @@ _mesa_delete_vao(struct gl_context *ctx, struct gl_vertex_array_object *obj)
 {
    (void) ctx;
    unbind_array_object_vbos(ctx, obj);
-   _mesa_reference_buffer_object(ctx, &obj->ElementArrayBufferObj, NULL);
+   _mesa_reference_buffer_object(ctx, &obj->IndexBufferObj, NULL);
    _glthread_DESTROY_MUTEX(obj->Mutex);
    free(obj->Label);
    free(obj);
@@ -257,7 +257,7 @@ _mesa_initialize_vao(struct gl_context *ctx,
       }
    }
 
-   _mesa_reference_buffer_object(ctx, &obj->ElementArrayBufferObj,
+   _mesa_reference_buffer_object(ctx, &obj->IndexBufferObj,
                                  ctx->Shared->NullBufferObj);
 }
 
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index 5b5c48dbdab..00452804468 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -1486,7 +1486,7 @@ copy_array_attrib(struct gl_context *ctx,
       copy_array_object(ctx, dest->VAO, src->VAO);
 
    /* skip ArrayBufferObj */
-   /* skip ElementArrayBufferObj */
+   /* skip IndexBufferObj */
 }
 
 /**
@@ -1506,8 +1506,8 @@ save_array_attrib(struct gl_context *ctx,
    /* Just reference them here */
    _mesa_reference_buffer_object(ctx, &dest->ArrayBufferObj,
                                  src->ArrayBufferObj);
-   _mesa_reference_buffer_object(ctx, &dest->VAO->ElementArrayBufferObj,
-                                 src->VAO->ElementArrayBufferObj);
+   _mesa_reference_buffer_object(ctx, &dest->VAO->IndexBufferObj,
+                                 src->VAO->IndexBufferObj);
 }
 
 /**
@@ -1552,10 +1552,10 @@ restore_array_attrib(struct gl_context *ctx,
    }
 
    if (!arb_vao
-       || src->VAO->ElementArrayBufferObj->Name == 0
-       || _mesa_IsBuffer(src->VAO->ElementArrayBufferObj->Name))
+       || src->VAO->IndexBufferObj->Name == 0
+       || _mesa_IsBuffer(src->VAO->IndexBufferObj->Name))
       _mesa_BindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,
-			  src->VAO->ElementArrayBufferObj->Name);
+			  src->VAO->IndexBufferObj->Name);
 }
 
 /**
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 7c966a7e0bd..ca55ef9693f 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -80,7 +80,7 @@ get_buffer_target(struct gl_context *ctx, GLenum target)
    case GL_ARRAY_BUFFER_ARB:
       return &ctx->Array.ArrayBufferObj;
    case GL_ELEMENT_ARRAY_BUFFER_ARB:
-      return &ctx->Array.VAO->ElementArrayBufferObj;
+      return &ctx->Array.VAO->IndexBufferObj;
    case GL_PIXEL_PACK_BUFFER_EXT:
       return &ctx->Pack.BufferObj;
    case GL_PIXEL_UNPACK_BUFFER_EXT:
@@ -451,7 +451,7 @@ _mesa_reference_buffer_object_(struct gl_context *ctx,
 #if 0
          /* unfortunately, these tests are invalid during context tear-down */
 	 ASSERT(ctx->Array.ArrayBufferObj != bufObj);
-	 ASSERT(ctx->Array.VAO->ElementArrayBufferObj != bufObj);
+	 ASSERT(ctx->Array.VAO->IndexBufferObj != bufObj);
 	 ASSERT(ctx->Array.VAO->Vertex.BufferObj != bufObj);
 #endif
 
@@ -1102,7 +1102,7 @@ _mesa_DeleteBuffers(GLsizei n, const GLuint *ids)
          if (ctx->Array.ArrayBufferObj == bufObj) {
             _mesa_BindBuffer( GL_ARRAY_BUFFER_ARB, 0 );
          }
-         if (vao->ElementArrayBufferObj == bufObj) {
+         if (vao->IndexBufferObj == bufObj) {
             _mesa_BindBuffer( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
          }
 
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 4464e7d493c..f22acff0b36 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -839,7 +839,7 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
 	 ctx->Array.VAO->VertexBinding[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
       break;
    case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
-      v->value_int = ctx->Array.VAO->ElementArrayBufferObj->Name;
+      v->value_int = ctx->Array.VAO->IndexBufferObj->Name;
       break;
 
    /* ARB_copy_buffer */
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index c9b954bcf01..609c63f3617 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1605,7 +1605,7 @@ struct gl_vertex_array_object
     */
    GLuint _MaxElement;
 
-   struct gl_buffer_object *ElementArrayBufferObj;
+   struct gl_buffer_object *IndexBufferObj;
 };