mesa: merge bind_atomic_buffers_{base|range}

Reduced code duplication should make the code more maintainable.

Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 49 insertions, 106 deletions

diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 00680f5a8e6..14ee8c8fc73 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -3580,82 +3580,18 @@ unbind_atomic_buffers(struct gl_context *ctx, GLuint first, GLsizei count)
 }
 
 static void
-bind_atomic_buffers_base(struct gl_context *ctx,
-                         GLuint first,
-                         GLsizei count,
-                         const GLuint *buffers)
+bind_atomic_buffers(struct gl_context *ctx,
+                    GLuint first,
+                    GLsizei count,
+                    const GLuint *buffers,
+                    bool range,
+                    const GLintptr *offsets,
+                    const GLsizeiptr *sizes,
+                    const char *caller)
 {
    GLint i;
 
-   if (!error_check_bind_atomic_buffers(ctx, first, count,
-                                        "glBindBuffersBase"))
-     return;
-
-   /* Assume that at least one binding will be changed */
-   FLUSH_VERTICES(ctx, 0);
-   ctx->NewDriverState |= ctx->DriverFlags.NewAtomicBuffer;
-
-   if (!buffers) {
-      /* The ARB_multi_bind spec says:
-       *
-       *   "If <buffers> is NULL, all bindings from <first> through
-       *    <first>+<count>-1 are reset to their unbound (zero) state."
-       */
-      unbind_atomic_buffers(ctx, first, count);
-      return;
-   }
-
-   /* Note that the error semantics for multi-bind commands differ from
-    * those of other GL commands.
-    *
-    * The Issues section in the ARB_multi_bind spec says:
-    *
-    *    "(11) Typically, OpenGL specifies that if an error is generated by a
-    *          command, that command has no effect.  This is somewhat
-    *          unfortunate for multi-bind commands, because it would require a
-    *          first pass to scan the entire list of bound objects for errors
-    *          and then a second pass to actually perform the bindings.
-    *          Should we have different error semantics?
-    *
-    *       RESOLVED:  Yes.  In this specification, when the parameters for
-    *       one of the <count> binding points are invalid, that binding point
-    *       is not updated and an error will be generated.  However, other
-    *       binding points in the same command will be updated if their
-    *       parameters are valid and no other error occurs."
-    */
-
-   _mesa_begin_bufferobj_lookups(ctx);
-
-   for (i = 0; i < count; i++) {
-      struct gl_atomic_buffer_binding *binding =
-         &ctx->AtomicBufferBindings[first + i];
-      struct gl_buffer_object *bufObj;
-
-      if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
-         bufObj = binding->BufferObject;
-      else
-         bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
-                                                    "glBindBuffersBase");
-
-      if (bufObj)
-         set_atomic_buffer_binding(ctx, binding, bufObj, 0, 0);
-   }
-
-   _mesa_end_bufferobj_lookups(ctx);
-}
-
-static void
-bind_atomic_buffers_range(struct gl_context *ctx,
-                          GLuint first,
-                          GLsizei count,
-                          const GLuint *buffers,
-                          const GLintptr *offsets,
-                          const GLsizeiptr *sizes)
-{
-   GLint i;
-
-   if (!error_check_bind_atomic_buffers(ctx, first, count,
-                                        "glBindBuffersRange"))
+   if (!error_check_bind_atomic_buffers(ctx, first, count, caller))
      return;
 
    /* Assume that at least one binding will be changed */
@@ -3700,45 +3636,51 @@ bind_atomic_buffers_range(struct gl_context *ctx,
       struct gl_atomic_buffer_binding *binding =
          &ctx->AtomicBufferBindings[first + i];
       struct gl_buffer_object *bufObj;
+      GLintptr offset = 0;
+      GLsizeiptr size = 0;
 
-      if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes))
-         continue;
+      if (range) {
+         if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes))
+            continue;
 
-      /* The ARB_multi_bind spec says:
-       *
-       *     "An INVALID_VALUE error is generated by BindBuffersRange if any
-       *      pair of values in <offsets> and <sizes> does not respectively
-       *      satisfy the constraints described for those parameters for the
-       *      specified target, as described in section 6.7.1 (per binding)."
-       *
-       * Section 6.7.1 refers to table 6.5, which says:
-       *
-       *     "┌───────────────────────────────────────────────────────────────┐
-       *      │ Atomic counter array bindings (see sec. 7.7.2)                │
-       *      ├───────────────────────┬───────────────────────────────────────┤
-       *      │    ...                │    ...                                │
-       *      │    offset restriction │    multiple of 4                      │
-       *      │    ...                │    ...                                │
-       *      │    size restriction   │    none                               │
-       *      └───────────────────────┴───────────────────────────────────────┘"
-       */
-      if (offsets[i] & (ATOMIC_COUNTER_SIZE - 1)) {
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glBindBuffersRange(offsets[%u]=%" PRId64
-                     " is misaligned; it must be a multiple of %d when "
-                     "target=GL_ATOMIC_COUNTER_BUFFER)",
-                     i, (int64_t) offsets[i], ATOMIC_COUNTER_SIZE);
-         continue;
+         /* The ARB_multi_bind spec says:
+          *
+          *     "An INVALID_VALUE error is generated by BindBuffersRange if any
+          *      pair of values in <offsets> and <sizes> does not respectively
+          *      satisfy the constraints described for those parameters for the
+          *      specified target, as described in section 6.7.1 (per binding)."
+          *
+          * Section 6.7.1 refers to table 6.5, which says:
+          *
+          *     "┌───────────────────────────────────────────────────────────────┐
+          *      │ Atomic counter array bindings (see sec. 7.7.2)                │
+          *      ├───────────────────────┬───────────────────────────────────────┤
+          *      │    ...                │    ...                                │
+          *      │    offset restriction │    multiple of 4                      │
+          *      │    ...                │    ...                                │
+          *      │    size restriction   │    none                               │
+          *      └───────────────────────┴───────────────────────────────────────┘"
+          */
+         if (offsets[i] & (ATOMIC_COUNTER_SIZE - 1)) {
+            _mesa_error(ctx, GL_INVALID_VALUE,
+                        "glBindBuffersRange(offsets[%u]=%" PRId64
+                        " is misaligned; it must be a multiple of %d when "
+                        "target=GL_ATOMIC_COUNTER_BUFFER)",
+                        i, (int64_t) offsets[i], ATOMIC_COUNTER_SIZE);
+            continue;
+         }
+
+         offset = offsets[i];
+         size = sizes[i];
       }
 
       if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
          bufObj = binding->BufferObject;
       else
-         bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
-                                                    "glBindBuffersRange");
+         bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, caller);
 
       if (bufObj)
-         set_atomic_buffer_binding(ctx, binding, bufObj, offsets[i], sizes[i]);
+         set_atomic_buffer_binding(ctx, binding, bufObj, offset, size);
    }
 
    _mesa_end_bufferobj_lookups(ctx);
@@ -3903,8 +3845,8 @@ _mesa_BindBuffersRange(GLenum target, GLuint first, GLsizei count,
                                   "glBindBuffersRange");
       return;
    case GL_ATOMIC_COUNTER_BUFFER:
-      bind_atomic_buffers_range(ctx, first, count, buffers,
-                                offsets, sizes);
+      bind_atomic_buffers(ctx, first, count, buffers, true, offsets, sizes,
+                          "glBindBuffersRange");
       return;
    default:
       _mesa_error(ctx, GL_INVALID_ENUM, "glBindBuffersRange(target=%s)",
@@ -3938,7 +3880,8 @@ _mesa_BindBuffersBase(GLenum target, GLuint first, GLsizei count,
                                   "glBindBuffersBase");
       return;
    case GL_ATOMIC_COUNTER_BUFFER:
-      bind_atomic_buffers_base(ctx, first, count, buffers);
+      bind_atomic_buffers(ctx, first, count, buffers, false, NULL, NULL,
+                          "glBindBuffersBase");
       return;
    default:
       _mesa_error(ctx, GL_INVALID_ENUM, "glBindBuffersBase(target=%s)",