- /* 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_uniform_buffer_binding *binding =
- &ctx->UniformBufferBindings[first + i];
- struct gl_buffer_object *bufObj;
-
- 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:
- *
- * "┌───────────────────────────────────────────────────────────────┐
- * │ Uniform buffer array bindings (see sec. 7.6) │
- * ├─────────────────────┬─────────────────────────────────────────┤
- * │ ... │ ... │
- * │ offset restriction │ multiple of value of UNIFORM_BUFFER_- │
- * │ │ OFFSET_ALIGNMENT │
- * │ ... │ ... │
- * │ size restriction │ none │
- * └─────────────────────┴─────────────────────────────────────────┘"
- */
- if (offsets[i] & (ctx->Const.UniformBufferOffsetAlignment - 1)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBuffersRange(offsets[%u]=%" PRId64
- " is misaligned; it must be a multiple of the value of "
- "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT=%u when "
- "target=GL_UNIFORM_BUFFER)",
- i, (int64_t) offsets[i],
- ctx->Const.UniformBufferOffsetAlignment);
- continue;
- }
-
- if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
- bufObj = binding->BufferObject;
- else
- bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
- "glBindBuffersRange");
-
- if (bufObj) {
- if (bufObj == ctx->Shared->NullBufferObj)
- set_ubo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE);
- else
- set_ubo_binding(ctx, binding, bufObj,
- offsets[i], sizes[i], GL_FALSE);
- }
- }
-
- _mesa_end_bufferobj_lookups(ctx);
-}
-
-static void
-bind_shader_storage_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_shader_storage_buffers(ctx, first, count,
- "glBindBuffersRange"))
- return;
-
- /* Assume that at least one binding will be changed */
- FLUSH_VERTICES(ctx, 0);
- ctx->NewDriverState |= ctx->DriverFlags.NewShaderStorageBuffer;
-
- 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.
- * In this case, the offsets and sizes associated with the
- * binding points are set to default values, ignoring
- * <offsets> and <sizes>."
- */
- unbind_shader_storage_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_shader_storage_buffer_binding *binding =
- &ctx->ShaderStorageBufferBindings[first + i];
- struct gl_buffer_object *bufObj;
-
- 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:
- *
- * "┌───────────────────────────────────────────────────────────────┐
- * │ Shader storage buffer array bindings (see sec. 7.8) │
- * ├─────────────────────┬─────────────────────────────────────────┤
- * │ ... │ ... │
- * │ offset restriction │ multiple of value of SHADER_STORAGE_- │
- * │ │ BUFFER_OFFSET_ALIGNMENT │
- * │ ... │ ... │
- * │ size restriction │ none │
- * └─────────────────────┴─────────────────────────────────────────┘"
- */
- if (offsets[i] & (ctx->Const.ShaderStorageBufferOffsetAlignment - 1)) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBuffersRange(offsets[%u]=%" PRId64
- " is misaligned; it must be a multiple of the value of "
- "GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT=%u when "
- "target=GL_SHADER_STORAGE_BUFFER)",
- i, (int64_t) offsets[i],
- ctx->Const.ShaderStorageBufferOffsetAlignment);
- continue;
- }
-
- if (binding->BufferObject && binding->BufferObject->Name == buffers[i])
- bufObj = binding->BufferObject;
- else
- bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i,
- "glBindBuffersRange");
-
- if (bufObj) {
- if (bufObj == ctx->Shared->NullBufferObj)
- set_ssbo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE);
- else
- set_ssbo_binding(ctx, binding, bufObj,
- offsets[i], sizes[i], GL_FALSE);
- }
- }
-
- _mesa_end_bufferobj_lookups(ctx);
-}
-
-static bool
-error_check_bind_xfb_buffers(struct gl_context *ctx,
- struct gl_transform_feedback_object *tfObj,
- GLuint first, GLsizei count, const char *caller)
-{
- if (!ctx->Extensions.EXT_transform_feedback) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "%s(target=GL_TRANSFORM_FEEDBACK_BUFFER)", caller);
- return false;
- }
-
- /* Page 398 of the PDF of the OpenGL 4.4 (Core Profile) spec says: