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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#ifndef __MOZ_DMABUF_FORMATS_H__
#define __MOZ_DMABUF_FORMATS_H__
#include "nsTArray.h"
#ifdef MOZ_WAYLAND
struct zwp_linux_dmabuf_v1;
struct zwp_linux_dmabuf_feedback_v1;
struct wl_surface;
#endif
namespace mozilla::widget {
class DMABufFormatTable;
class DMABufFeedback;
// DRMFormat (fourcc) and available modifiers for it.
// Modifiers are sorted from the most preffered one.
class DRMFormat final {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DRMFormat)
explicit DRMFormat(uint32_t aFormat) : mFormat(aFormat) {};
DRMFormat(uint32_t aFormat, uint64_t aModifier) : mFormat(aFormat) {
mModifiers.AppendElement(aModifier);
}
DRMFormat(uint32_t aFormat, const nsTArray<uint64_t>& aModifiers)
: mFormat(aFormat), mModifiers(aModifiers.Clone()) {};
DRMFormat(const DRMFormat& aSrc)
: mFormat(aSrc.mFormat), mModifiers(aSrc.mModifiers.Clone()) {}
uint32_t GetFormat() const { return mFormat; }
bool Matches(uint32_t aFormat) const { return mFormat == aFormat; }
bool IsFormatModifierSupported(uint64_t aModifier) const {
return mModifiers.Contains(aModifier);
}
void AddModifier(uint64_t aModifier) {
MOZ_ASSERT(!IsFormatModifierSupported(aModifier), "Added modifier twice?");
mModifiers.AppendElement(aModifier);
}
bool UseModifiers() const { return !mModifiers.IsEmpty(); }
const uint64_t* GetModifiers(uint32_t& aModifiersNum) {
aModifiersNum = mModifiers.Length();
return mModifiers.Elements();
}
nsTArray<uint64_t>* GetModifiers() { return &mModifiers; }
private:
~DRMFormat() = default;
uint32_t mFormat = 0;
AutoTArray<uint64_t, 15> mModifiers;
};
#ifdef MOZ_WAYLAND
class DMABufFormats;
using DMABufFormatsCallback = std::function<void(DMABufFormats*)>;
class DMABufFormats final {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DMABufFormats)
void InitFeedback(zwp_linux_dmabuf_v1* aDMABuf,
const DMABufFormatsCallback& aFormatRefreshCB,
wl_surface* aSurface = nullptr);
void InitV3(zwp_linux_dmabuf_v1* aDMABuf);
void InitV3Done();
DMABufFeedback* GetDMABufFeedback() { return mDMABufFeedback.get(); }
DMABufFeedback* GetPendingDMABufFeedback();
void PendingDMABufFeedbackDone();
DRMFormat* GetFormat(uint32_t aFormat, bool aRequestScanoutFormat = false);
DMABufFormats();
private:
~DMABufFormats();
DMABufFormatsCallback mFormatRefreshCallback;
zwp_linux_dmabuf_feedback_v1* mWaylandFeedback = nullptr;
UniquePtr<DMABufFeedback> mDMABufFeedback;
UniquePtr<DMABufFeedback> mPendingDMABufFeedback;
};
RefPtr<DMABufFormats> CreateDMABufFeedbackFormats(
wl_surface* aSurface,
const std::function<void(DMABufFormats*)>& aFormatRefreshCB = nullptr);
#endif
} // namespace mozilla::widget
#endif // __MOZ_DMABUF_FORMATS_H__