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89 lines
2.9 KiB
89 lines
2.9 KiB
/* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_PLATFORM_NV_H_ |
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#define ANDROID_PLATFORM_NV_H_ |
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#include "drmresources.h" |
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#include "platform.h" |
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#include "platformdrmgeneric.h" |
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#include <stdatomic.h> |
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#include <hardware/gralloc.h> |
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namespace android { |
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class NvImporter : public Importer { |
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public: |
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NvImporter(DrmResources *drm); |
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~NvImporter() override; |
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int Init(); |
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int ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) override; |
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int ReleaseBuffer(hwc_drm_bo_t *bo) override; |
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private: |
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typedef struct NvBuffer { |
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NvImporter *importer; |
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hwc_drm_bo_t bo; |
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atomic_int ref; |
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} NvBuffer_t; |
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static void NvGrallocRelease(void *nv_buffer); |
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void ReleaseBufferImpl(hwc_drm_bo_t *bo); |
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NvBuffer_t *GrallocGetNvBuffer(buffer_handle_t handle); |
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int GrallocSetNvBuffer(buffer_handle_t handle, NvBuffer_t *buf); |
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DrmResources *drm_; |
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const gralloc_module_t *gralloc_; |
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}; |
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// This stage looks for any layers that contain transformed protected content |
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// and puts it in the primary plane since Tegra doesn't support planar rotation |
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// on the overlay planes. |
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// |
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// There are two caveats to this approach: 1- Protected content isn't |
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// necessarily planar, but it's usually a safe bet, and 2- This doesn't catch |
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// non-protected planar content. If we wanted to fix this, we'd need to import |
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// the buffer in this stage and peek at it's format. The overhead of doing this |
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// doesn't seem worth it since we'll end up displaying the right thing in both |
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// cases anyways. |
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class PlanStageProtectedRotated : public Planner::PlanStage { |
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public: |
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int ProvisionPlanes(std::vector<DrmCompositionPlane> *composition, |
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std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc, |
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std::vector<DrmPlane *> *planes); |
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}; |
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// This stage looks for layers that would not be supported by Tegra driver due |
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// to limitations such as downscaling. If the layer is unprotected it will be |
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// punted for precomp to handle, other wise if protected it will be dropped as |
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// it cannot be supported by any means. |
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class PlanStageNvLimits : public Planner::PlanStage { |
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public: |
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int ProvisionPlanes(std::vector<DrmCompositionPlane> *composition, |
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std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc, |
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std::vector<DrmPlane *> *planes); |
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protected: |
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bool CheckLayer(size_t zorder, DrmHwcLayer *layer); |
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}; |
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} |
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#endif
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