diff options
Diffstat (limited to 'gralloc-headers/pixel-gralloc/mapper.h')
| -rw-r--r-- | gralloc-headers/pixel-gralloc/mapper.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/gralloc-headers/pixel-gralloc/mapper.h b/gralloc-headers/pixel-gralloc/mapper.h new file mode 100644 index 0000000..14990a9 --- /dev/null +++ b/gralloc-headers/pixel-gralloc/mapper.h @@ -0,0 +1,85 @@ +#pragma once + +#include <android/hardware/graphics/mapper/4.0/IMapper.h> +#include <log/log.h> + +#include "metadata.h" +#include "utils.h" + +namespace pixel::graphics::mapper { + +namespace { + +using ::aidl::android::hardware::graphics::common::PlaneLayout; +using android::hardware::graphics::mapper::V4_0::Error; +using android::hardware::graphics::mapper::V4_0::IMapper; +using HidlPixelFormat = ::android::hardware::graphics::common::V1_2::PixelFormat; +using namespace ::pixel::graphics; + +android::sp<IMapper> get_mapper() { + static android::sp<IMapper> mapper = []() { + auto mapper = IMapper::getService(); + if (!mapper) { + ALOGE("Failed to get mapper service"); + } + return mapper; + }(); + + return mapper; +} + +} // namespace + +template <MetadataType T> +struct always_false : std::false_type {}; + +template <MetadataType T> +struct ReturnType { + static_assert(always_false<T>::value, "Unspecialized ReturnType is not supported"); + using type = void; +}; + +template <MetadataType T> +static std::optional<typename ReturnType<T>::type> get(buffer_handle_t /*handle*/) { + static_assert(always_false<T>::value, "Unspecialized get is not supported"); + return {}; +} + +// TODO: Add support for stable-c mapper +#define GET(metadata, return_type) \ + template <> \ + struct ReturnType<MetadataType::metadata> { \ + using type = return_type; \ + }; \ + \ + template <> \ + std::optional<typename ReturnType<MetadataType::metadata>::type> get<MetadataType::metadata>( \ + buffer_handle_t handle) { \ + auto mapper = get_mapper(); \ + IMapper::MetadataType type = { \ + .name = kPixelMetadataTypeName, \ + .value = static_cast<int64_t>(MetadataType::metadata), \ + }; \ + \ + android::hardware::hidl_vec<uint8_t> vec; \ + Error error; \ + auto ret = mapper->get(const_cast<native_handle_t*>(handle), type, \ + [&](const auto& tmpError, \ + const android::hardware::hidl_vec<uint8_t>& tmpVec) { \ + error = tmpError; \ + vec = tmpVec; \ + }); \ + if (!ret.isOk()) { \ + return {}; \ + } \ + \ + return utils::decode<return_type>(vec); \ + } + +GET(PLANE_DMA_BUFS, std::vector<int>); +GET(VIDEO_HDR, void*); +GET(VIDEO_ROI, void*); + +#undef GET + +} // namespace pixel::graphics::mapper |