Initial commit of all the NXT integration.
More like squashed history, contributors were:
- Kai Ninomiya
- Corentin Wallez
diff --git a/src/backend/opengl/PipelineLayoutGL.cpp b/src/backend/opengl/PipelineLayoutGL.cpp
new file mode 100644
index 0000000..1f3cb5e
--- /dev/null
+++ b/src/backend/opengl/PipelineLayoutGL.cpp
@@ -0,0 +1,80 @@
+// Copyright 2017 The NXT Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "PipelineLayoutGL.h"
+
+#include "OpenGLBackend.h"
+
+namespace backend {
+namespace opengl {
+
+ PipelineLayout::PipelineLayout(Device* device, PipelineLayoutBuilder* builder)
+ : PipelineLayoutBase(builder), device(device) {
+ GLuint uboIndex = 0;
+ GLuint samplerIndex = 0;
+ GLuint sampledTextureIndex = 0;
+ GLuint ssboIndex = 0;
+
+ for (size_t group = 0; group < kMaxBindGroups; ++group) {
+ const auto& groupInfo = GetBindGroupLayout(group)->GetBindingInfo();
+
+ for (size_t binding = 0; binding < kMaxBindingsPerGroup; ++binding) {
+ if (!groupInfo.mask[binding]) {
+ continue;
+ }
+
+ switch (groupInfo.types[binding]) {
+ case nxt::BindingType::UniformBuffer:
+ indexInfo[group][binding] = uboIndex;
+ uboIndex ++;
+ break;
+ case nxt::BindingType::Sampler:
+ indexInfo[group][binding] = samplerIndex;
+ samplerIndex ++;
+ break;
+ case nxt::BindingType::SampledTexture:
+ indexInfo[group][binding] = sampledTextureIndex;
+ sampledTextureIndex ++;
+ break;
+
+ case nxt::BindingType::StorageBuffer:
+ indexInfo[group][binding] = ssboIndex;
+ ssboIndex ++;
+ break;
+ }
+ }
+ }
+
+ numSamplers = samplerIndex;
+ numSampledTextures = sampledTextureIndex;
+ }
+
+ const PipelineLayout::BindingIndexInfo& PipelineLayout::GetBindingIndexInfo() const {
+ return indexInfo;
+ }
+
+ GLuint PipelineLayout::GetTextureUnitsUsed() const {
+ return 0;
+ }
+
+ size_t PipelineLayout::GetNumSamplers() const {
+ return numSamplers;
+ }
+
+ size_t PipelineLayout::GetNumSampledTextures() const {
+ return numSampledTextures;
+ }
+
+}
+}
