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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 parseried.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest.h"
#include "src/amberscript/parser.h"
namespace amber {
namespace amberscript {
using AmberScriptParserTest = testing::Test;
TEST_F(AmberScriptParserTest, SamplerDefaultValues) {
std::string in = "SAMPLER sampler";
Parser parser;
Result r = parser.Parse(in);
ASSERT_TRUE(r.IsSuccess()) << r.Error();
auto script = parser.GetScript();
const auto& samplers = script->GetSamplers();
ASSERT_EQ(1U, samplers.size());
ASSERT_TRUE(samplers[0] != nullptr);
EXPECT_EQ("sampler", samplers[0]->GetName());
auto* sampler = samplers[0].get();
EXPECT_EQ(FilterType::kNearest, sampler->GetMagFilter());
EXPECT_EQ(FilterType::kNearest, sampler->GetMinFilter());
EXPECT_EQ(FilterType::kNearest, sampler->GetMipmapMode());
EXPECT_EQ(AddressMode::kRepeat, sampler->GetAddressModeU());
EXPECT_EQ(AddressMode::kRepeat, sampler->GetAddressModeV());
EXPECT_EQ(AddressMode::kRepeat, sampler->GetAddressModeW());
EXPECT_EQ(BorderColor::kFloatTransparentBlack, sampler->GetBorderColor());
EXPECT_EQ(0.0, sampler->GetMinLOD());
EXPECT_EQ(1.0, sampler->GetMaxLOD());
EXPECT_EQ(true, sampler->GetNormalizedCoords());
}
TEST_F(AmberScriptParserTest, SamplerCustomValues) {
std::string in = R"(
SAMPLER sampler MAG_FILTER linear \
MIN_FILTER linear \
ADDRESS_MODE_U clamp_to_edge \
ADDRESS_MODE_V clamp_to_border \
ADDRESS_MODE_W mirrored_repeat \
BORDER_COLOR float_opaque_white \
MIN_LOD 2.5 \
MAX_LOD 5.0 \
NORMALIZED_COORDS)";
Parser parser;
Result r = parser.Parse(in);
ASSERT_TRUE(r.IsSuccess()) << r.Error();
auto script = parser.GetScript();
const auto& samplers = script->GetSamplers();
ASSERT_EQ(1U, samplers.size());
ASSERT_TRUE(samplers[0] != nullptr);
EXPECT_EQ("sampler", samplers[0]->GetName());
auto* sampler = samplers[0].get();
EXPECT_EQ(FilterType::kLinear, sampler->GetMagFilter());
EXPECT_EQ(FilterType::kLinear, sampler->GetMinFilter());
EXPECT_EQ(FilterType::kNearest, sampler->GetMipmapMode());
EXPECT_EQ(AddressMode::kClampToEdge, sampler->GetAddressModeU());
EXPECT_EQ(AddressMode::kClampToBorder, sampler->GetAddressModeV());
EXPECT_EQ(AddressMode::kMirroredRepeat, sampler->GetAddressModeW());
EXPECT_EQ(BorderColor::kFloatOpaqueWhite, sampler->GetBorderColor());
EXPECT_EQ(2.5, sampler->GetMinLOD());
EXPECT_EQ(5.0, sampler->GetMaxLOD());
EXPECT_EQ(true, sampler->GetNormalizedCoords());
}
TEST_F(AmberScriptParserTest, SamplerUnexpectedParameter) {
std::string in = R"(
SAMPLER sampler MAG_FILTER linear \
FOO \
ADDRESS_MODE_U clamp_to_edge)";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("3: unexpected sampler parameter FOO", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidMagFilter) {
std::string in = "SAMPLER sampler MAG_FILTER foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid MAG_FILTER value foo", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidMinFilter) {
std::string in = "SAMPLER sampler MIN_FILTER foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid MIN_FILTER value foo", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidAddressModeU) {
std::string in = "SAMPLER sampler ADDRESS_MODE_U foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid ADDRESS_MODE_U value foo", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidAddressModeV) {
std::string in = "SAMPLER sampler ADDRESS_MODE_V foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid ADDRESS_MODE_V value foo", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidBorderColor) {
std::string in = "SAMPLER sampler BORDER_COLOR foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid BORDER_COLOR value foo", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidMinLod) {
std::string in = "SAMPLER sampler MIN_LOD foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid token when looking for MIN_LOD value", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerInvalidMaxLod) {
std::string in = "SAMPLER sampler MAX_LOD foo";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: invalid token when looking for MAX_LOD value", r.Error());
}
TEST_F(AmberScriptParserTest, SamplerMaxLodSmallerThanMinLod) {
std::string in = "SAMPLER sampler MIN_LOD 2.0 MAX_LOD 1.0";
Parser parser;
Result r = parser.Parse(in);
ASSERT_FALSE(r.IsSuccess());
EXPECT_EQ("1: max LOD needs to be greater than or equal to min LOD",
r.Error());
}
TEST_F(AmberScriptParserTest, SamplerUnnormalizedCoordsSetsLod) {
std::string in = R"(
SAMPLER sampler \
MIN_LOD 2.0 \
MAX_LOD 3.0 \
UNNORMALIZED_COORDS
)";
Parser parser;
Result r = parser.Parse(in);
ASSERT_TRUE(r.IsSuccess());
auto script = parser.GetScript();
const auto& samplers = script->GetSamplers();
ASSERT_EQ(1U, samplers.size());
ASSERT_TRUE(samplers[0] != nullptr);
EXPECT_EQ("sampler", samplers[0]->GetName());
auto* sampler = samplers[0].get();
EXPECT_EQ(0.0f, sampler->GetMinLOD());
EXPECT_EQ(0.0f, sampler->GetMaxLOD());
}
} // namespace amberscript
} // namespace amber
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