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108 lines
3.7 KiB
108 lines
3.7 KiB
From 86000c32d64cea7be2e6ed911cb9ea5df1306c0e Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Thu, 18 Aug 2022 13:36:20 -0500
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Subject: [PATCH 1/2] output/kms: Add more heuristics to decide when to offer
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fallback modes
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If the panel is connected via eDP and supports more than one mode
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at different resolutions don't try to add more.
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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2586>
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(cherry picked from commit 96aa0fb8536eca579ceb1b17d83e19cf9e3e9e81)
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(cherry picked from commit 877cc3eb7d44e2886395151f763ec09bea350444)
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---
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src/backends/native/meta-output-kms.c | 56 +++++++++++++++++++++------
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1 file changed, 44 insertions(+), 12 deletions(-)
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diff --git a/src/backends/native/meta-output-kms.c b/src/backends/native/meta-output-kms.c
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index f35cdf04e1..9adc20bfd9 100644
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--- a/src/backends/native/meta-output-kms.c
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+++ b/src/backends/native/meta-output-kms.c
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@@ -224,6 +224,45 @@ compare_modes (const void *one,
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meta_crtc_mode_get_name (crtc_mode_two));
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}
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+static gboolean
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+are_all_modes_equally_sized (MetaOutputInfo *output_info)
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+{
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+ const MetaCrtcModeInfo *base =
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+ meta_crtc_mode_get_info (output_info->modes[0]);
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+ int i;
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+
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+ for (i = 1; i < output_info->n_modes; i++)
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+ {
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+ const MetaCrtcModeInfo *mode_info =
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+ meta_crtc_mode_get_info (output_info->modes[i]);
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+
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+ if (base->width != mode_info->width ||
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+ base->height != mode_info->height)
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+ return FALSE;
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+ }
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+
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+ return TRUE;
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+}
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+
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+static void
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+maybe_add_fallback_modes (const MetaKmsConnectorState *connector_state,
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+ MetaOutputInfo *output_info,
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+ MetaGpuKms *gpu_kms,
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+ MetaKmsConnector *kms_connector)
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+{
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+ if (!connector_state->has_scaling)
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+ return;
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+
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+ if (output_info->connector_type == DRM_MODE_CONNECTOR_eDP &&
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+ !are_all_modes_equally_sized (output_info))
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+ return;
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+
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+ meta_topic (META_DEBUG_KMS, "Adding common modes to connector %u on %s",
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+ meta_kms_connector_get_id (kms_connector),
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+ meta_gpu_kms_get_file_path (gpu_kms));
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+ add_common_modes (output_info, gpu_kms);
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+}
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+
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static gboolean
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init_output_modes (MetaOutputInfo *output_info,
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MetaGpuKms *gpu_kms,
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@@ -252,14 +291,7 @@ init_output_modes (MetaOutputInfo *output_info,
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output_info->preferred_mode = output_info->modes[i];
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}
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- if (connector_state->has_scaling)
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- {
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- meta_topic (META_DEBUG_KMS, "Adding common modes to connector %u on %s",
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- meta_kms_connector_get_id (kms_connector),
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- meta_gpu_kms_get_file_path (gpu_kms));
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- add_common_modes (output_info, gpu_kms);
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- }
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-
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+ maybe_add_fallback_modes (connector_state, output_info, gpu_kms, kms_connector);
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if (!output_info->modes)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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@@ -322,6 +354,10 @@ meta_output_kms_new (MetaGpuKms *gpu_kms,
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output_info->height_mm = connector_state->height_mm;
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}
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+ drm_connector_type = meta_kms_connector_get_connector_type (kms_connector);
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+ output_info->connector_type =
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+ meta_kms_connector_type_from_drm (drm_connector_type);
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+
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if (!init_output_modes (output_info, gpu_kms, kms_connector, error))
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return NULL;
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@@ -349,10 +385,6 @@ meta_output_kms_new (MetaGpuKms *gpu_kms,
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meta_output_info_parse_edid (output_info, connector_state->edid_data);
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- drm_connector_type = meta_kms_connector_get_connector_type (kms_connector);
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- output_info->connector_type =
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- meta_kms_connector_type_from_drm (drm_connector_type);
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-
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output_info->tile_info = connector_state->tile_info;
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output = g_object_new (META_TYPE_OUTPUT_KMS,
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--
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2.37.1
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