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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/command_buffer/service/program_cache.h"
#include "base/memory/scoped_ptr.h"
#include "gpu/command_buffer/service/mocks.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::Return;
namespace gpu {
namespace gles2 {
class NoBackendProgramCache : public ProgramCache {
public:
virtual ProgramLoadResult LoadLinkedProgram(
GLuint /* program */,
Shader* /* shader_a */,
const ShaderTranslatorInterface* /* translator_a */,
Shader* /* shader_b */,
const ShaderTranslatorInterface* /* translator_b */,
const LocationMap* /* bind_attrib_location_map */,
const ShaderCacheCallback& /* callback */) OVERRIDE {
return PROGRAM_LOAD_SUCCESS;
}
virtual void SaveLinkedProgram(
GLuint /* program */,
const Shader* /* shader_a */,
const ShaderTranslatorInterface* /* translator_b */,
const Shader* /* shader_b */,
const ShaderTranslatorInterface* /* translator_b */,
const LocationMap* /* bind_attrib_location_map */,
const ShaderCacheCallback& /* callback */) OVERRIDE { }
virtual void LoadProgram(const std::string& /* program */) OVERRIDE {}
virtual void ClearBackend() OVERRIDE {}
void SaySuccessfullyCached(const std::string& shader1,
const ShaderTranslatorInterface* translator_1,
const std::string& shader2,
const ShaderTranslatorInterface* translator_2,
std::map<std::string, GLint>* attrib_map) {
char a_sha[kHashLength];
char b_sha[kHashLength];
ComputeShaderHash(shader1, translator_1, a_sha);
ComputeShaderHash(shader2, translator_2, b_sha);
char sha[kHashLength];
ComputeProgramHash(a_sha,
b_sha,
attrib_map,
sha);
const std::string shaString(sha, kHashLength);
LinkedProgramCacheSuccess(shaString);
}
void ComputeShaderHash(const std::string& shader,
const ShaderTranslatorInterface* translator,
char* result) const {
ProgramCache::ComputeShaderHash(shader, translator, result);
}
void ComputeProgramHash(const char* hashed_shader_0,
const char* hashed_shader_1,
const LocationMap* bind_attrib_location_map,
char* result) const {
ProgramCache::ComputeProgramHash(hashed_shader_0,
hashed_shader_1,
bind_attrib_location_map,
result);
}
void Evict(const std::string& program_hash) {
ProgramCache::Evict(program_hash);
}
};
class ProgramCacheTest : public testing::Test {
public:
ProgramCacheTest() :
cache_(new NoBackendProgramCache()) { }
protected:
scoped_ptr<NoBackendProgramCache> cache_;
};
TEST_F(ProgramCacheTest, LinkStatusSave) {
const std::string shader1 = "abcd1234";
const std::string shader2 = "abcda sda b1~#4 bbbbb1234";
{
std::string shader_a = shader1;
std::string shader_b = shader2;
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(
shader_a, NULL, shader_b, NULL, NULL));
cache_->SaySuccessfullyCached(shader_a, NULL, shader_b, NULL, NULL);
shader_a.clear();
shader_b.clear();
}
// make sure it was copied
EXPECT_EQ(ProgramCache::LINK_SUCCEEDED,
cache_->GetLinkedProgramStatus(
shader1, NULL, shader2, NULL, NULL));
}
TEST_F(ProgramCacheTest, LinkUnknownOnFragmentSourceChange) {
const std::string shader1 = "abcd1234";
std::string shader2 = "abcda sda b1~#4 bbbbb1234";
cache_->SaySuccessfullyCached(shader1, NULL, shader2, NULL, NULL);
shader2 = "different!";
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
}
TEST_F(ProgramCacheTest, LinkUnknownOnVertexSourceChange) {
std::string shader1 = "abcd1234";
const std::string shader2 = "abcda sda b1~#4 bbbbb1234";
cache_->SaySuccessfullyCached(shader1, NULL, shader2, NULL, NULL);
shader1 = "different!";
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
}
TEST_F(ProgramCacheTest, StatusEviction) {
const std::string shader1 = "abcd1234";
const std::string shader2 = "abcda sda b1~#4 bbbbb1234";
cache_->SaySuccessfullyCached(shader1, NULL, shader2, NULL, NULL);
char a_sha[ProgramCache::kHashLength];
char b_sha[ProgramCache::kHashLength];
cache_->ComputeShaderHash(shader1, NULL, a_sha);
cache_->ComputeShaderHash(shader2, NULL, b_sha);
char sha[ProgramCache::kHashLength];
cache_->ComputeProgramHash(a_sha,
b_sha,
NULL,
sha);
cache_->Evict(std::string(sha, ProgramCache::kHashLength));
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
}
TEST_F(ProgramCacheTest, EvictionWithReusedShader) {
const std::string shader1 = "abcd1234";
const std::string shader2 = "abcda sda b1~#4 bbbbb1234";
const std::string shader3 = "asbjbbjj239a";
cache_->SaySuccessfullyCached(shader1, NULL, shader2, NULL, NULL);
cache_->SaySuccessfullyCached(shader1, NULL, shader3, NULL, NULL);
char a_sha[ProgramCache::kHashLength];
char b_sha[ProgramCache::kHashLength];
char c_sha[ProgramCache::kHashLength];
cache_->ComputeShaderHash(shader1, NULL, a_sha);
cache_->ComputeShaderHash(shader2, NULL, b_sha);
cache_->ComputeShaderHash(shader3, NULL, c_sha);
char sha[ProgramCache::kHashLength];
cache_->ComputeProgramHash(a_sha,
b_sha,
NULL,
sha);
cache_->Evict(std::string(sha, ProgramCache::kHashLength));
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
EXPECT_EQ(ProgramCache::LINK_SUCCEEDED,
cache_->GetLinkedProgramStatus(shader1, NULL, shader3, NULL, NULL));
cache_->ComputeProgramHash(a_sha,
c_sha,
NULL,
sha);
cache_->Evict(std::string(sha, ProgramCache::kHashLength));
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader3, NULL, NULL));
}
TEST_F(ProgramCacheTest, StatusClear) {
const std::string shader1 = "abcd1234";
const std::string shader2 = "abcda sda b1~#4 bbbbb1234";
const std::string shader3 = "asbjbbjj239a";
cache_->SaySuccessfullyCached(shader1, NULL, shader2, NULL, NULL);
cache_->SaySuccessfullyCached(shader1, NULL, shader3, NULL, NULL);
cache_->Clear();
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader2, NULL, NULL));
EXPECT_EQ(ProgramCache::LINK_UNKNOWN,
cache_->GetLinkedProgramStatus(shader1, NULL, shader3, NULL, NULL));
}
} // namespace gles2
} // namespace gpu
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