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Add graphics composer support for HWC > HWC1.1

Browse source 
Test: Ryu, Marlin
Change-Id: I58a7394f427534b942d64c93b1891a756c5f510c
This commit is contained in:
Fabien Sanglard 2017-03-16 16:56:46 -07:00
parent f8654facce
commit 0d55a21044
3 changed files with 44 additions and 6 deletions
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1
graphics/composer/2.1/default/Android.bp
View file

@ -37,6 +37,7 @@ cc_library_shared {
"liblog",
"libsync",
"libutils",
"libhwc2on1adapter"
],
}

35
graphics/composer/2.1/default/Hwc.cpp
View file

@ -22,6 +22,8 @@
#include "ComposerClient.h"
#include "Hwc.h"
#include "hardware/hwcomposer.h"
#include "hwc2on1adapter/HWC2On1Adapter.h"
namespace android {
namespace hardware {
@ -30,13 +32,36 @@ namespace composer {
namespace V2_1 {
namespace implementation {
HwcHal::HwcHal(const hw_module_t* module)
: mDevice(nullptr), mDispatch()
: mDevice(nullptr), mDispatch(), mAdapter()
{
int status = hwc2_open(module, &mDevice);
if (status) {
LOG_ALWAYS_FATAL("failed to open hwcomposer2 device: %s",
strerror(-status));
// Determine what kind of module is available (HWC2 vs HWC1.X).
hw_device_t* device = nullptr;
int error = module->methods->open(module, HWC_HARDWARE_COMPOSER, &device);
if (error != 0) {
ALOGE("Failed to open HWC device (%s), aborting", strerror(-error));
abort();
}
uint32_t majorVersion = (device->version >> 24) & 0xF;
// If we don't have a HWC2, we need to wrap whatever we have in an adapter.
if (majorVersion != 2) {
uint32_t minorVersion = device->version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
minorVersion = (minorVersion >> 16) & 0xF;
ALOGI("Found HWC implementation v%d.%d", majorVersion, minorVersion);
if (minorVersion < 1) {
ALOGE("Cannot adapt to HWC version %d.%d. Minimum supported is 1.1",
majorVersion, minorVersion);
abort();
}
mAdapter = std::make_unique<HWC2On1Adapter>(
reinterpret_cast<hwc_composer_device_1*>(device));
// Place the adapter in front of the device module.
mDevice = mAdapter.get();
} else {
mDevice = reinterpret_cast<hwc2_device_t*>(device);
}
initCapabilities();

14
graphics/composer/2.1/default/Hwc.h
View file

@ -18,14 +18,22 @@
#define ANDROID_HARDWARE_GRAPHICS_COMPOSER_V2_1_HWC_H
#include <mutex>
#include <memory>
#include <unordered_set>
#include <vector>
#include <android/hardware/graphics/composer/2.1/IComposer.h>
#define HWC2_INCLUDE_STRINGIFICATION
#define HWC2_USE_CPP11
#include <hardware/hwcomposer2.h>
#undef HWC2_INCLUDE_STRINGIFICATION
#undef HWC2_USE_CPP11
#include "ComposerBase.h"
namespace android {
class HWC2On1Adapter;
}
namespace android {
namespace hardware {
namespace graphics {
@ -204,6 +212,10 @@ private:
std::mutex mClientMutex;
wp<ComposerClient> mClient;
// If the HWC implementation version is < 2.0, use an adapter to interface
// between HWC 2.0 <-> HWC 1.X.
std::unique_ptr<HWC2On1Adapter> mAdapter;
};
extern "C" IComposer* HIDL_FETCH_IComposer(const char* name);