1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <optional>
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/scope_exit.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/readable_event.h"
#include "core/hle/service/nvdrv/devices/nvdisp_disp0.h"
#include "core/hle/service/nvdrv/nvdrv.h"
#include "core/hle/service/nvflinger/buffer_queue.h"
#include "core/hle/service/nvflinger/nvflinger.h"
#include "core/hle/service/vi/display/vi_display.h"
#include "core/hle/service/vi/layer/vi_layer.h"
#include "core/perf_stats.h"
#include "core/settings.h"
#include "video_core/renderer_base.h"
namespace Service::NVFlinger {
constexpr s64 frame_ticks = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 60);
constexpr s64 frame_ticks_30fps = static_cast<s64>(Core::Timing::BASE_CLOCK_RATE / 30);
NVFlinger::NVFlinger(Core::System& system) : system(system) {
displays.emplace_back(0, "Default", system);
displays.emplace_back(1, "External", system);
displays.emplace_back(2, "Edid", system);
displays.emplace_back(3, "Internal", system);
displays.emplace_back(4, "Null", system);
// Schedule the screen composition events
composition_event = system.CoreTiming().RegisterEvent(
"ScreenComposition", [this](u64 userdata, s64 cycles_late) {
Compose();
const auto ticks =
Settings::values.force_30fps_mode ? frame_ticks_30fps : GetNextTicks();
this->system.CoreTiming().ScheduleEvent(std::max<s64>(0LL, ticks - cycles_late),
composition_event);
});
system.CoreTiming().ScheduleEvent(frame_ticks, composition_event);
}
NVFlinger::~NVFlinger() {
system.CoreTiming().UnscheduleEvent(composition_event, 0);
}
void NVFlinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
nvdrv = std::move(instance);
}
std::optional<u64> NVFlinger::OpenDisplay(std::string_view name) {
LOG_DEBUG(Service, "Opening \"{}\" display", name);
// TODO(Subv): Currently we only support the Default display.
ASSERT(name == "Default");
const auto itr =
std::find_if(displays.begin(), displays.end(),
[&](const VI::Display& display) { return display.GetName() == name; });
if (itr == displays.end()) {
return {};
}
return itr->GetID();
}
std::optional<u64> NVFlinger::CreateLayer(u64 display_id) {
auto* const display = FindDisplay(display_id);
if (display == nullptr) {
return {};
}
const u64 layer_id = next_layer_id++;
const u32 buffer_queue_id = next_buffer_queue_id++;
buffer_queues.emplace_back(buffer_queue_id, layer_id);
display->CreateLayer(layer_id, buffer_queues.back());
return layer_id;
}
std::optional<u32> NVFlinger::FindBufferQueueId(u64 display_id, u64 layer_id) const {
const auto* const layer = FindLayer(display_id, layer_id);
if (layer == nullptr) {
return {};
}
return layer->GetBufferQueue().GetId();
}
Kernel::SharedPtr<Kernel::ReadableEvent> NVFlinger::FindVsyncEvent(u64 display_id) const {
auto* const display = FindDisplay(display_id);
if (display == nullptr) {
return nullptr;
}
return display->GetVSyncEvent();
}
BufferQueue& NVFlinger::FindBufferQueue(u32 id) {
const auto itr = std::find_if(buffer_queues.begin(), buffer_queues.end(),
[id](const auto& queue) { return queue.GetId() == id; });
ASSERT(itr != buffer_queues.end());
return *itr;
}
const BufferQueue& NVFlinger::FindBufferQueue(u32 id) const {
const auto itr = std::find_if(buffer_queues.begin(), buffer_queues.end(),
[id](const auto& queue) { return queue.GetId() == id; });
ASSERT(itr != buffer_queues.end());
return *itr;
}
VI::Display* NVFlinger::FindDisplay(u64 display_id) {
const auto itr =
std::find_if(displays.begin(), displays.end(),
[&](const VI::Display& display) { return display.GetID() == display_id; });
if (itr == displays.end()) {
return nullptr;
}
return &*itr;
}
const VI::Display* NVFlinger::FindDisplay(u64 display_id) const {
const auto itr =
std::find_if(displays.begin(), displays.end(),
[&](const VI::Display& display) { return display.GetID() == display_id; });
if (itr == displays.end()) {
return nullptr;
}
return &*itr;
}
VI::Layer* NVFlinger::FindLayer(u64 display_id, u64 layer_id) {
auto* const display = FindDisplay(display_id);
if (display == nullptr) {
return nullptr;
}
return display->FindLayer(layer_id);
}
const VI::Layer* NVFlinger::FindLayer(u64 display_id, u64 layer_id) const {
const auto* const display = FindDisplay(display_id);
if (display == nullptr) {
return nullptr;
}
return display->FindLayer(layer_id);
}
void NVFlinger::Compose() {
for (auto& display : displays) {
// Trigger vsync for this display at the end of drawing
SCOPE_EXIT({ display.SignalVSyncEvent(); });
// Don't do anything for displays without layers.
if (!display.HasLayers())
continue;
// TODO(Subv): Support more than 1 layer.
VI::Layer& layer = display.GetLayer(0);
auto& buffer_queue = layer.GetBufferQueue();
// Search for a queued buffer and acquire it
auto buffer = buffer_queue.AcquireBuffer();
MicroProfileFlip();
if (!buffer) {
// There was no queued buffer to draw, render previous frame
system.GetPerfStats().EndGameFrame();
system.GPU().SwapBuffers({});
continue;
}
const auto& igbp_buffer = buffer->get().igbp_buffer;
// Now send the buffer to the GPU for drawing.
// TODO(Subv): Support more than just disp0. The display device selection is probably based
// on which display we're drawing (Default, Internal, External, etc)
auto nvdisp = nvdrv->GetDevice<Nvidia::Devices::nvdisp_disp0>("/dev/nvdisp_disp0");
ASSERT(nvdisp);
nvdisp->flip(igbp_buffer.gpu_buffer_id, igbp_buffer.offset, igbp_buffer.format,
igbp_buffer.width, igbp_buffer.height, igbp_buffer.stride,
buffer->get().transform, buffer->get().crop_rect);
swap_interval = buffer->get().swap_interval;
buffer_queue.ReleaseBuffer(buffer->get().slot);
}
}
s64 NVFlinger::GetNextTicks() const {
constexpr s64 max_hertz = 120LL;
return (Core::Timing::BASE_CLOCK_RATE * (1LL << swap_interval)) / max_hertz;
}
} // namespace Service::NVFlinger
|
