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Diffstat (limited to 'widget/gtk/DMABufLibWrapper.h')
| -rw-r--r-- | widget/gtk/DMABufLibWrapper.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/widget/gtk/DMABufLibWrapper.h b/widget/gtk/DMABufLibWrapper.h new file mode 100644 index 0000000000..9c1b05f1cd --- /dev/null +++ b/widget/gtk/DMABufLibWrapper.h @@ -0,0 +1,228 @@ +/* -*- 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef __MOZ_DMABUF_LIB_WRAPPER_H__ +#define __MOZ_DMABUF_LIB_WRAPPER_H__ + +#include "mozilla/widget/gbm.h" +#include "mozilla/StaticMutex.h" +#include <mutex> + +#ifdef MOZ_LOGGING +# include "mozilla/Logging.h" +# include "nsTArray.h" +# include "Units.h" +extern mozilla::LazyLogModule gDmabufLog; +# define LOGDMABUF(args) MOZ_LOG(gDmabufLog, mozilla::LogLevel::Debug, args) +#else +# define LOGDMABUF(args) +#endif /* MOZ_LOGGING */ + +#ifndef DRM_FORMAT_MOD_INVALID +# define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1) +#endif + +namespace mozilla { +namespace widget { + +typedef struct gbm_device* (*CreateDeviceFunc)(int); +typedef void (*DestroyDeviceFunc)(struct gbm_device*); +typedef struct gbm_bo* (*CreateFunc)(struct gbm_device*, uint32_t, uint32_t, + uint32_t, uint32_t); +typedef struct gbm_bo* (*CreateWithModifiersFunc)(struct gbm_device*, uint32_t, + uint32_t, uint32_t, + const uint64_t*, + const unsigned int); +typedef uint64_t (*GetModifierFunc)(struct gbm_bo*); +typedef uint32_t (*GetStrideFunc)(struct gbm_bo*); +typedef int (*GetFdFunc)(struct gbm_bo*); +typedef void (*DestroyFunc)(struct gbm_bo*); +typedef void* (*MapFunc)(struct gbm_bo*, uint32_t, uint32_t, uint32_t, uint32_t, + uint32_t, uint32_t*, void**); +typedef void (*UnmapFunc)(struct gbm_bo*, void*); +typedef int (*GetPlaneCountFunc)(struct gbm_bo*); +typedef union gbm_bo_handle (*GetHandleForPlaneFunc)(struct gbm_bo*, int); +typedef uint32_t (*GetStrideForPlaneFunc)(struct gbm_bo*, int); +typedef uint32_t (*GetOffsetFunc)(struct gbm_bo*, int); +typedef int (*DeviceIsFormatSupportedFunc)(struct gbm_device*, uint32_t, + uint32_t); +typedef int (*DrmPrimeHandleToFDFunc)(int, uint32_t, uint32_t, int*); +typedef struct gbm_surface* (*CreateSurfaceFunc)(struct gbm_device*, uint32_t, + uint32_t, uint32_t, uint32_t); +typedef void (*DestroySurfaceFunc)(struct gbm_surface*); + +class GbmLib { + public: + static bool IsAvailable() { return sLoaded || Load(); } + static bool IsModifierAvailable(); + + static struct gbm_device* CreateDevice(int fd) { + StaticMutexAutoLock lockDRI(sDRILock); + return sCreateDevice(fd); + }; + static void DestroyDevice(struct gbm_device* gdm) { + StaticMutexAutoLock lockDRI(sDRILock); + return sDestroyDevice(gdm); + }; + static struct gbm_bo* Create(struct gbm_device* gbm, uint32_t width, + uint32_t height, uint32_t format, + uint32_t flags) { + StaticMutexAutoLock lockDRI(sDRILock); + return sCreate(gbm, width, height, format, flags); + } + static void Destroy(struct gbm_bo* bo) { + StaticMutexAutoLock lockDRI(sDRILock); + sDestroy(bo); + } + static uint32_t GetStride(struct gbm_bo* bo) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetStride(bo); + } + static int GetFd(struct gbm_bo* bo) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetFd(bo); + } + static void* Map(struct gbm_bo* bo, uint32_t x, uint32_t y, uint32_t width, + uint32_t height, uint32_t flags, uint32_t* stride, + void** map_data) { + StaticMutexAutoLock lockDRI(sDRILock); + return sMap(bo, x, y, width, height, flags, stride, map_data); + } + static void Unmap(struct gbm_bo* bo, void* map_data) { + StaticMutexAutoLock lockDRI(sDRILock); + sUnmap(bo, map_data); + } + static struct gbm_bo* CreateWithModifiers(struct gbm_device* gbm, + uint32_t width, uint32_t height, + uint32_t format, + const uint64_t* modifiers, + const unsigned int count) { + StaticMutexAutoLock lockDRI(sDRILock); + return sCreateWithModifiers(gbm, width, height, format, modifiers, count); + } + static uint64_t GetModifier(struct gbm_bo* bo) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetModifier(bo); + } + static int GetPlaneCount(struct gbm_bo* bo) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetPlaneCount(bo); + } + static union gbm_bo_handle GetHandleForPlane(struct gbm_bo* bo, int plane) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetHandleForPlane(bo, plane); + } + static uint32_t GetStrideForPlane(struct gbm_bo* bo, int plane) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetStrideForPlane(bo, plane); + } + static uint32_t GetOffset(struct gbm_bo* bo, int plane) { + StaticMutexAutoLock lockDRI(sDRILock); + return sGetOffset(bo, plane); + } + static int DeviceIsFormatSupported(struct gbm_device* gbm, uint32_t format, + uint32_t usage) { + StaticMutexAutoLock lockDRI(sDRILock); + return sDeviceIsFormatSupported(gbm, format, usage); + } + static int DrmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, + int* prime_fd) { + StaticMutexAutoLock lockDRI(sDRILock); + return sDrmPrimeHandleToFD(fd, handle, flags, prime_fd); + } + static struct gbm_surface* CreateSurface(struct gbm_device* gbm, + uint32_t width, uint32_t height, + uint32_t format, uint32_t flags) { + StaticMutexAutoLock lockDRI(sDRILock); + return sCreateSurface(gbm, width, height, format, flags); + } + static void DestroySurface(struct gbm_surface* surface) { + StaticMutexAutoLock lockDRI(sDRILock); + return sDestroySurface(surface); + } + + private: + static bool Load(); + static bool IsLoaded(); + + static CreateDeviceFunc sCreateDevice; + static DestroyDeviceFunc sDestroyDevice; + static CreateFunc sCreate; + static CreateWithModifiersFunc sCreateWithModifiers; + static GetModifierFunc sGetModifier; + static GetStrideFunc sGetStride; + static GetFdFunc sGetFd; + static DestroyFunc sDestroy; + static MapFunc sMap; + static UnmapFunc sUnmap; + static GetPlaneCountFunc sGetPlaneCount; + static GetHandleForPlaneFunc sGetHandleForPlane; + static GetStrideForPlaneFunc sGetStrideForPlane; + static GetOffsetFunc sGetOffset; + static DeviceIsFormatSupportedFunc sDeviceIsFormatSupported; + static DrmPrimeHandleToFDFunc sDrmPrimeHandleToFD; + static CreateSurfaceFunc sCreateSurface; + static DestroySurfaceFunc sDestroySurface; + static bool sLoaded; + + static void* sGbmLibHandle; + static void* sXf86DrmLibHandle; + static mozilla::StaticMutex sDRILock MOZ_UNANNOTATED; +}; + +struct GbmFormat { + bool mIsSupported; + bool mHasAlpha; + int mFormat; + nsTArray<uint64_t> mModifiers; +}; + +class DMABufDevice { + public: + DMABufDevice(); + ~DMABufDevice(); + + int OpenDRMFd(); + gbm_device* GetGbmDevice(); + int GetDmabufFD(uint32_t aGEMHandle); + + bool IsEnabled(nsACString& aFailureId); + + // Use dmabuf for WebRender general web content + static bool IsDMABufTexturesEnabled(); + // Use dmabuf for WebGL content + static bool IsDMABufWebGLEnabled(); + static void DisableDMABufWebGL(); + + void AddFormatModifier(bool aHasAlpha, int aFormat, uint32_t mModifierHi, + uint32_t mModifierLo); + GbmFormat* GetGbmFormat(bool aHasAlpha); + + private: + void Configure(); + void LoadFormatModifiers(); + + void SetModifiersToGfxVars(); + void GetModifiersFromGfxVars(); + + private: + GbmFormat mXRGBFormat; + GbmFormat mARGBFormat; + + int mDRMFd = -1; + std::once_flag mFlagGbmDevice; + gbm_device* mGbmDevice = nullptr; + const char* mFailureId = nullptr; + nsAutoCString mDrmRenderNode; +}; + +DMABufDevice* GetDMABufDevice(); + +} // namespace widget +} // namespace mozilla + +#endif // __MOZ_DMABUF_LIB_WRAPPER_H__ |