e9e4b2b72e
Add support for getting hardware presentation times from KMS (Wayland sessions). Also implement cogl_get_clock_time which is required to compare and judge the age of presentation timestamps. For single monitor systems this is straightforward. For multi-monitor systems though we have to choose a display to sync to. The compositor already partially solves this for us in the case of only one display updating because it will only use the subset of monitors that are changing. In the case of multiple monitors consuming the same frame concurrently however, we choose the fastest one (in use at the time). Note however that we also need !73 to land in order to fully realize multiple monitors running at full speed.
103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2017 Red Hat
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* Copyright (C) 2018 DisplayLink (UK) Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_GPU_KMS_H
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#define META_GPU_KMS_H
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#include <glib-object.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "backends/meta-gpu.h"
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#include "backends/native/meta-monitor-manager-kms.h"
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#define META_TYPE_GPU_KMS (meta_gpu_kms_get_type ())
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G_DECLARE_FINAL_TYPE (MetaGpuKms, meta_gpu_kms, META, GPU_KMS, MetaGpu)
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typedef struct _MetaGpuKmsFlipClosureContainer MetaGpuKmsFlipClosureContainer;
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typedef struct _MetaKmsResources
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{
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drmModeRes *resources;
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drmModeEncoder **encoders;
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unsigned int n_encoders;
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} MetaKmsResources;
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typedef void (*MetaKmsFlipCallback) (void *user_data);
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MetaGpuKms * meta_gpu_kms_new (MetaMonitorManagerKms *monitor_manager_kms,
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const char *kms_file_path,
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GError **error);
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gboolean meta_gpu_kms_apply_crtc_mode (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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int x,
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int y,
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uint32_t fb_id);
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gboolean meta_gpu_kms_can_have_outputs (MetaGpuKms *gpu_kms);
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gboolean meta_gpu_kms_is_crtc_active (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc);
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gboolean meta_gpu_kms_flip_crtc (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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int x,
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int y,
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uint32_t fb_id,
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GClosure *flip_closure,
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gboolean *fb_in_use);
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gboolean meta_gpu_kms_wait_for_flip (MetaGpuKms *gpu_kms,
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GError **error);
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int meta_gpu_kms_get_fd (MetaGpuKms *gpu_kms);
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uint32_t meta_gpu_kms_get_id (MetaGpuKms *gpu_kms);
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const char * meta_gpu_kms_get_file_path (MetaGpuKms *gpu_kms);
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int64_t meta_gpu_kms_get_current_time_ns (MetaGpuKms *gpu_kms);
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void meta_gpu_kms_get_max_buffer_size (MetaGpuKms *gpu_kms,
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int *max_width,
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int *max_height);
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void meta_gpu_kms_set_power_save_mode (MetaGpuKms *gpu_kms,
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uint64_t state);
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MetaCrtcMode * meta_gpu_kms_get_mode_from_drm_mode (MetaGpuKms *gpu_kms,
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const drmModeModeInfo *drm_mode);
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gboolean meta_drm_mode_equal (const drmModeModeInfo *one,
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const drmModeModeInfo *two);
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float meta_calculate_drm_mode_refresh_rate (const drmModeModeInfo *mode);
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MetaGpuKmsFlipClosureContainer * meta_gpu_kms_wrap_flip_closure (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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GClosure *flip_closure);
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void meta_gpu_kms_flip_closure_container_free (MetaGpuKmsFlipClosureContainer *closure_container);
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#endif /* META_GPU_KMS_H */
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