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#include <mbgl/test/util.hpp>
#include <mbgl/platform/default/headless_display.hpp>
#include <mbgl/platform/default/headless_view.hpp>
#include <mbgl/gl/gl_helper.hpp>
#include <mbgl/gl/gl_config.hpp>
#include <mbgl/gl/object_store.hpp>
#include <mbgl/gl/texture_pool.hpp>
#include <memory>
namespace {
static bool getFlag = false;
static bool setFlag = false;
}; // namespace
struct MockGLObject {
using Type = bool;
static const Type Default = false;
static Type Get() { getFlag = true; return true; }
static void Set(const Type&) { setFlag = true; }
};
TEST(GLObject, Preserve) {
getFlag = false;
setFlag = false;
auto object = std::make_unique<mbgl::gl::Preserve<MockGLObject>>();
EXPECT_TRUE(getFlag);
EXPECT_FALSE(setFlag);
getFlag = false;
object.reset();
EXPECT_FALSE(getFlag);
EXPECT_TRUE(setFlag);
}
TEST(GLObject, Value) {
setFlag = false;
auto object = std::make_unique<mbgl::gl::Value<MockGLObject>>();
EXPECT_EQ(object->getCurrent(), false);
EXPECT_FALSE(object->getDirty());
EXPECT_FALSE(setFlag);
object->setDirty();
EXPECT_TRUE(object->getDirty());
*object = false;
EXPECT_EQ(object->getCurrent(), false);
EXPECT_FALSE(object->getDirty());
EXPECT_TRUE(setFlag);
setFlag = false;
*object = true;
EXPECT_EQ(object->getCurrent(), true);
EXPECT_FALSE(object->getDirty());
EXPECT_TRUE(setFlag);
object->reset();
EXPECT_EQ(object->getCurrent(), false);
EXPECT_TRUE(object->getDirty());
EXPECT_TRUE(setFlag);
}
TEST(GLObject, Store) {
mbgl::HeadlessView view(std::make_shared<mbgl::HeadlessDisplay>(), 1);
view.activate();
mbgl::gl::ObjectStore store;
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueProgram program = store.createProgram();
EXPECT_NE(program.get(), 0);
program.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueShader shader = store.createShader(GL_VERTEX_SHADER);
EXPECT_NE(shader.get(), 0);
shader.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueBuffer buffer = store.createBuffer();
EXPECT_NE(buffer.get(), 0);
buffer.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueTexture texture = store.createTexture();
EXPECT_NE(texture.get(), 0);
texture.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueVAO vao = store.createVAO();
EXPECT_NE(vao.get(), 0);
vao.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
mbgl::gl::UniqueTexturePool texturePool = store.createTexturePool();
for (auto& id : texturePool.get()) {
EXPECT_NE(id, 0);
}
EXPECT_TRUE(texturePool.get().size() == size_t(mbgl::gl::TextureMax));
texturePool.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
view.deactivate();
}
TEST(GLObject, TexturePool) {
mbgl::HeadlessView view(std::make_shared<mbgl::HeadlessDisplay>(), 1);
view.activate();
mbgl::gl::ObjectStore store;
EXPECT_TRUE(store.empty());
mbgl::gl::TexturePool pool;
std::vector<mbgl::gl::SharedTexture> ids;
// Fill an entire texture pool.
for (auto i = 0; i != mbgl::gl::TextureMax; ++i) {
ids.push_back(pool.acquireTexture(store));
EXPECT_EQ(ids.back().get(), GLuint(i + 1));
EXPECT_TRUE(store.empty());
}
// Reuse texture ids from the same pool.
for (auto i = 0; i != mbgl::gl::TextureMax; ++i) {
ids[i].reset();
ids.push_back(pool.acquireTexture(store));
EXPECT_EQ(ids.back().get(), GLuint(i + 1));
EXPECT_TRUE(store.empty());
}
// Trigger a new texture pool creation.
{
mbgl::gl::SharedTexture id = pool.acquireTexture(store);
EXPECT_EQ(id, mbgl::gl::TextureMax + 1);
EXPECT_TRUE(store.empty());
id.reset();
// Last used texture from pool triggers pool recycling.
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
}
// First pool is still full, thus creating a new pool.
mbgl::gl::SharedTexture id1 = pool.acquireTexture(store);
EXPECT_GT(id1.get(), mbgl::gl::TextureMax);
EXPECT_TRUE(store.empty());
// Release all textures from the first pool.
ids.clear();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
// The first pool is now gone, the next pool is now in use.
mbgl::gl::SharedTexture id2 = pool.acquireTexture(store);
EXPECT_GT(id2.get(), id1.get());
id2.reset();
EXPECT_TRUE(store.empty());
// Last used texture from the pool triggers pool recycling.
id1.reset();
EXPECT_FALSE(store.empty());
store.performCleanup();
EXPECT_TRUE(store.empty());
view.deactivate();
}
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