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