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The pixel clock determines how fast pixels can be processed. When adding non-native common modes, avoid adding modes that exceed the max pixel clock frequency of the native modes. Avoiding these avoids potential mode setting failures where the GPU can't handle the modeline since the configured pixel clock is too fast. This replaces the "bandwidth" check which used the number of pixels and refresh rate, which wasn't enough to avoid incompatible modes. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2492>
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/*
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* Copyright (C) 2017-2020 Red Hat
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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_CRTC_MODE_H
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#define META_CRTC_MODE_H
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#include <glib-object.h>
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#include <stdint.h>
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#include "core/util-private.h"
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/* Same as KMS mode flags and X11 randr flags */
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typedef enum _MetaCrtcModeFlag
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{
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META_CRTC_MODE_FLAG_NONE = 0,
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META_CRTC_MODE_FLAG_PHSYNC = (1 << 0),
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META_CRTC_MODE_FLAG_NHSYNC = (1 << 1),
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META_CRTC_MODE_FLAG_PVSYNC = (1 << 2),
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META_CRTC_MODE_FLAG_NVSYNC = (1 << 3),
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META_CRTC_MODE_FLAG_INTERLACE = (1 << 4),
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META_CRTC_MODE_FLAG_DBLSCAN = (1 << 5),
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META_CRTC_MODE_FLAG_CSYNC = (1 << 6),
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META_CRTC_MODE_FLAG_PCSYNC = (1 << 7),
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META_CRTC_MODE_FLAG_NCSYNC = (1 << 8),
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META_CRTC_MODE_FLAG_HSKEW = (1 << 9),
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META_CRTC_MODE_FLAG_BCAST = (1 << 10),
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META_CRTC_MODE_FLAG_PIXMUX = (1 << 11),
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META_CRTC_MODE_FLAG_DBLCLK = (1 << 12),
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META_CRTC_MODE_FLAG_CLKDIV2 = (1 << 13),
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META_CRTC_MODE_FLAG_MASK = 0x3fff
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} MetaCrtcModeFlag;
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typedef struct _MetaCrtcModeInfo
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{
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grefcount ref_count;
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int width;
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int height;
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float refresh_rate;
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int64_t vblank_duration_us;
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uint32_t pixel_clock_khz;
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MetaCrtcModeFlag flags;
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} MetaCrtcModeInfo;
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#define META_TYPE_CRTC_MODE (meta_crtc_mode_get_type ())
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META_EXPORT_TEST
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G_DECLARE_DERIVABLE_TYPE (MetaCrtcMode, meta_crtc_mode,
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META, CRTC_MODE,
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GObject)
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struct _MetaCrtcModeClass
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{
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GObjectClass parent_class;
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};
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#define META_TYPE_CRTC_MODE_INFO (meta_crtc_mode_info_get_type ())
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GType meta_crtc_mode_info_get_type (void);
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META_EXPORT_TEST
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MetaCrtcModeInfo * meta_crtc_mode_info_new (void);
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META_EXPORT_TEST
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MetaCrtcModeInfo * meta_crtc_mode_info_ref (MetaCrtcModeInfo *crtc_mode_info);
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META_EXPORT_TEST
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void meta_crtc_mode_info_unref (MetaCrtcModeInfo *crtc_mode_info);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaCrtcModeInfo, meta_crtc_mode_info_unref)
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uint64_t meta_crtc_mode_get_id (MetaCrtcMode *crtc_mode);
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const char * meta_crtc_mode_get_name (MetaCrtcMode *crtc_mode);
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META_EXPORT_TEST
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const MetaCrtcModeInfo * meta_crtc_mode_get_info (MetaCrtcMode *crtc_mode);
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#endif /* META_CRTC_MODE_H */
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