hwc2: Add support for HDR and HWC tonemapping
- Identify HDR layer in HWC, and add support to handle
tonemap requests from SDM
- Include hwc tonemapper which tonemaps layers using the
gpu tonemapper
- Add hint in BufferAllocator to specify gfx client
Change-Id: I45a2182fa96e366600d81cdb4cb08bceff3bfcb8
Crs-fixed: 2036626
diff --git a/sdm/libs/hwc2/hwc_tonemapper.h b/sdm/libs/hwc2/hwc_tonemapper.h
new file mode 100644
index 0000000..8367c3e
--- /dev/null
+++ b/sdm/libs/hwc2/hwc_tonemapper.h
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2016 - 2017, The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of The Linux Foundation nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef __HWC_TONEMAPPER_H__
+#define __HWC_TONEMAPPER_H__
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#include <hardware/hwcomposer.h>
+
+#include <core/layer_stack.h>
+#include <utils/sys.h>
+#include <vector>
+#include "hwc_buffer_sync_handler.h"
+#include "hwc_buffer_allocator.h"
+
+class Tonemapper;
+
+namespace sdm {
+
+struct ToneMapConfig {
+ int type = 0;
+ ColorPrimaries colorPrimaries = ColorPrimaries_Max;
+ GammaTransfer transfer = Transfer_Max;
+ LayerBufferFormat format = kFormatRGBA8888;
+ bool secure = false;
+};
+
+class ToneMapSession {
+ public:
+ explicit ToneMapSession(HWCBufferAllocator *buffer_allocator);
+ ~ToneMapSession();
+ DisplayError AllocateIntermediateBuffers(const Layer *layer);
+ void FreeIntermediateBuffers();
+ void UpdateBuffer(int acquire_fence, LayerBuffer *buffer);
+ void SetReleaseFence(int fd);
+ void SetToneMapConfig(Layer *layer);
+ bool IsSameToneMapConfig(Layer *layer);
+
+ static const uint8_t kNumIntermediateBuffers = 2;
+ Tonemapper *gpu_tone_mapper_ = nullptr;
+ HWCBufferAllocator *buffer_allocator_ = nullptr;
+ ToneMapConfig tone_map_config_ = {};
+ uint8_t current_buffer_index_ = 0;
+ std::vector<BufferInfo> buffer_info_ = {};
+ int release_fence_fd_[kNumIntermediateBuffers] = {-1, -1};
+ bool acquired_ = false;
+ int layer_index_ = -1;
+};
+
+class HWCToneMapper {
+ public:
+ explicit HWCToneMapper(HWCBufferAllocator *allocator) : buffer_allocator_(allocator) {}
+ ~HWCToneMapper() {}
+
+ int HandleToneMap(LayerStack *layer_stack);
+ bool IsActive() { return !tone_map_sessions_.empty(); }
+ void PostCommit(LayerStack *layer_stack);
+ void SetFrameDumpConfig(uint32_t count);
+ void Terminate();
+
+ private:
+ void ToneMap(Layer *layer, ToneMapSession *session);
+ DisplayError AcquireToneMapSession(Layer *layer, uint32_t *session_index);
+ void DumpToneMapOutput(ToneMapSession *session, int *acquire_fence);
+
+ std::vector<ToneMapSession*> tone_map_sessions_;
+ HWCBufferSyncHandler buffer_sync_handler_ = {};
+ HWCBufferAllocator *buffer_allocator_ = nullptr;
+ uint32_t dump_frame_count_ = 0;
+ uint32_t dump_frame_index_ = 0;
+ uint32_t fb_session_index_ = 0;
+};
+
+} // namespace sdm
+#endif // __HWC_TONEMAPPER_H__