1 files changed, 105 insertions, 0 deletions
diff --git a/src/sampler.h b/src/sampler.h
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+++ b/src/sampler.h
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+// Copyright 2019 The Amber 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.
+
+#ifndef SRC_SAMPLER_H_
+#define SRC_SAMPLER_H_
+
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "amber/result.h"
+#include "amber/value.h"
+#include "src/format.h"
+
+namespace amber {
+
+enum class FilterType : int8_t { kUnknown = -1, kNearest = 0, kLinear = 1 };
+
+enum class AddressMode : int8_t {
+  kUnknown = -1,
+  kRepeat = 0,
+  kMirroredRepeat = 1,
+  kClampToEdge = 2,
+  kClampToBorder = 3,
+  kMirrorClampToEdge = 4
+};
+
+enum class BorderColor : int8_t {
+  kUnknown = -1,
+  kFloatTransparentBlack = 0,
+  kIntTransparentBlack = 1,
+  kFloatOpaqueBlack = 2,
+  kIntOpaqueBlack = 3,
+  kFloatOpaqueWhite = 4,
+  kIntOpaqueWhite = 5
+};
+
+class Sampler {
+ public:
+  Sampler();
+  ~Sampler();
+
+  void SetName(const std::string& name) { name_ = name; }
+  std::string GetName() const { return name_; }
+
+  void SetMagFilter(FilterType filter) { mag_filter_ = filter; }
+  FilterType GetMagFilter() const { return mag_filter_; }
+
+  void SetMinFilter(FilterType filter) { min_filter_ = filter; }
+  FilterType GetMinFilter() const { return min_filter_; }
+
+  void SetMipmapMode(FilterType filter) { mipmap_mode_ = filter; }
+  FilterType GetMipmapMode() const { return mipmap_mode_; }
+
+  void SetAddressModeU(AddressMode mode) { address_mode_u_ = mode; }
+  AddressMode GetAddressModeU() const { return address_mode_u_; }
+
+  void SetAddressModeV(AddressMode mode) { address_mode_v_ = mode; }
+  AddressMode GetAddressModeV() const { return address_mode_v_; }
+
+  void SetAddressModeW(AddressMode mode) { address_mode_w_ = mode; }
+  AddressMode GetAddressModeW() const { return address_mode_w_; }
+
+  void SetBorderColor(BorderColor color) { border_color_ = color; }
+  BorderColor GetBorderColor() const { return border_color_; }
+
+  void SetMinLOD(float min_lod) { min_lod_ = min_lod; }
+  float GetMinLOD() const { return min_lod_; }
+
+  void SetMaxLOD(float max_lod) { max_lod_ = max_lod; }
+  float GetMaxLOD() const { return max_lod_; }
+
+  void SetNormalizedCoords(bool norm) { normalized_coords_ = norm; }
+  bool GetNormalizedCoords() const { return normalized_coords_; }
+
+ private:
+  std::string name_;
+  FilterType min_filter_ = FilterType::kNearest;
+  FilterType mag_filter_ = FilterType::kNearest;
+  FilterType mipmap_mode_ = FilterType::kNearest;
+  AddressMode address_mode_u_ = AddressMode::kRepeat;
+  AddressMode address_mode_v_ = AddressMode::kRepeat;
+  AddressMode address_mode_w_ = AddressMode::kRepeat;
+  BorderColor border_color_ = BorderColor::kFloatTransparentBlack;
+  float min_lod_ = 0.0f;
+  float max_lod_ = 1.0f;
+  bool normalized_coords_ = true;
+};
+
+}  // namespace amber
+
+#endif  // SRC_SAMPLER_H_