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135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set ts=4 sw=4 sts=4 et: */
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/*
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* Copyright (c) 2015 The Linux Foundation. All rights reserved.
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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 mozilla_HwcHALBase
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#define mozilla_HwcHALBase
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#include "mozilla/UniquePtr.h"
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#include "nsRect.h"
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#include <hardware/hwcomposer.h>
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#ifndef HWC_BLIT
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#if ANDROID_VERSION >= 21
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#define HWC_BLIT 0xFF
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#elif ANDROID_VERSION >= 17
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#define HWC_BLIT (HWC_FRAMEBUFFER_TARGET + 1)
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#else
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// ICS didn't support this. However, we define this
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// for passing compilation
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#define HWC_BLIT 0xFF
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#endif // #if ANDROID_VERSION
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#endif // #ifndef HWC_BLIT
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namespace mozilla {
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#if ANDROID_VERSION >= 17
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using HwcDevice = hwc_composer_device_1_t;
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using HwcList = hwc_display_contents_1_t;
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using HwcLayer = hwc_layer_1_t;
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#else
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using HwcDevice = hwc_composer_device_t;
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using HwcList = hwc_layer_list_t;
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using HwcLayer = hwc_layer_t;
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#endif
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// HwcHAL definition for HwcEvent callback types
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// Note: hwc_procs is different between ICS and later,
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// and the signature of invalidate is also different.
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// Use this wrap struct to hide the detail. BTW,
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// we don't have to register callback functions on ICS, so
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// there is no callbacks for ICS in HwcHALProcs.
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typedef struct HwcHALProcs {
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void (*invalidate)(const struct hwc_procs* procs);
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void (*vsync)(const struct hwc_procs* procs, int disp, int64_t timestamp);
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void (*hotplug)(const struct hwc_procs* procs, int disp, int connected);
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} HwcHALProcs_t;
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// HwcHAL class
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// This class handle all the HAL related work
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// The purpose of HwcHAL is to make HwcComposer2D simpler.
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class HwcHALBase {
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public:
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// Query Types. We can add more types easily in the future
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enum class QueryType {
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COLOR_FILL = 0x8,
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RB_SWAP = 0x40
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};
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public:
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explicit HwcHALBase() = default;
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virtual ~HwcHALBase() {}
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// Create HwcHAL module, Only HwcComposer2D calls this.
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// If other modules want to use HwcHAL, please use APIs in
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// HwcComposer2D
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static UniquePtr<HwcHALBase> CreateHwcHAL();
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// Check if mHwc exists
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virtual bool HasHwc() const = 0;
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// Set EGL info (only ICS need this info)
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virtual void SetEGLInfo(hwc_display_t aEGLDisplay,
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hwc_surface_t aEGLSurface) = 0;
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// HwcDevice query properties
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virtual bool Query(QueryType aType) = 0;
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// HwcDevice set
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virtual int Set(HwcList *aList,
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uint32_t aDisp) = 0;
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// Reset HwcDevice
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virtual int ResetHwc() = 0;
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// HwcDevice prepare
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virtual int Prepare(HwcList *aList,
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uint32_t aDisp,
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hwc_rect_t aDispRect,
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buffer_handle_t aHandle,
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int aFenceFd) = 0;
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// Check transparency support
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virtual bool SupportTransparency() const = 0;
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// Get a geometry change flag
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virtual uint32_t GetGeometryChangedFlag(bool aGeometryChanged) const = 0;
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// Set crop help
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virtual void SetCrop(HwcLayer &aLayer,
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const hwc_rect_t &aSrcCrop) const = 0;
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// Enable HW Vsync
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virtual bool EnableVsync(bool aEnable) = 0;
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// Register HW event callback functions
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virtual bool RegisterHwcEventCallback(const HwcHALProcs_t &aProcs) = 0;
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protected:
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MOZ_CONSTEXPR static uint32_t HwcAPIVersion(uint32_t aMaj, uint32_t aMin) {
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// HARDWARE_MAKE_API_VERSION_2, from Android hardware.h
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return (((aMaj & 0xff) << 24) | ((aMin & 0xff) << 16) | (1 & 0xffff));
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}
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};
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} // namespace mozilla
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#endif // mozilla_HwcHALBase
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