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
|
// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <glad/glad.h>
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/memory.h"
#include "video_core/renderer_opengl/gl_global_cache.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_shader_decompiler.h"
#include "video_core/renderer_opengl/utils.h"
namespace OpenGL {
CachedGlobalRegion::CachedGlobalRegion(VAddr addr, u32 size) : addr{addr}, size{size} {
buffer.Create();
// Bind and unbind the buffer so it gets allocated by the driver
glBindBuffer(GL_SHADER_STORAGE_BUFFER, buffer.handle);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
LabelGLObject(GL_BUFFER, buffer.handle, addr, "GlobalMemory");
}
void CachedGlobalRegion::Reload(u32 size_) {
constexpr auto max_size = static_cast<u32>(RasterizerOpenGL::MaxGlobalMemorySize);
size = size_;
if (size > max_size) {
size = max_size;
LOG_CRITICAL(HW_GPU, "Global region size {} exceeded the expected size {}!", size_,
max_size);
}
// TODO(Rodrigo): Get rid of Memory::GetPointer with a staging buffer
glBindBuffer(GL_SHADER_STORAGE_BUFFER, buffer.handle);
glBufferData(GL_SHADER_STORAGE_BUFFER, size, Memory::GetPointer(addr), GL_DYNAMIC_DRAW);
}
GlobalRegion GlobalRegionCacheOpenGL::TryGetReservedGlobalRegion(VAddr addr, u32 size) const {
const auto search{reserve.find(addr)};
if (search == reserve.end()) {
return {};
}
return search->second;
}
GlobalRegion GlobalRegionCacheOpenGL::GetUncachedGlobalRegion(VAddr addr, u32 size) {
GlobalRegion region{TryGetReservedGlobalRegion(addr, size)};
if (!region) {
// No reserved surface available, create a new one and reserve it
region = std::make_shared<CachedGlobalRegion>(addr, size);
ReserveGlobalRegion(region);
}
region->Reload(size);
return region;
}
void GlobalRegionCacheOpenGL::ReserveGlobalRegion(GlobalRegion region) {
reserve.insert_or_assign(region->GetAddr(), std::move(region));
}
GlobalRegionCacheOpenGL::GlobalRegionCacheOpenGL(RasterizerOpenGL& rasterizer)
: RasterizerCache{rasterizer} {}
GlobalRegion GlobalRegionCacheOpenGL::GetGlobalRegion(
const GLShader::GlobalMemoryEntry& global_region,
Tegra::Engines::Maxwell3D::Regs::ShaderStage stage) {
auto& gpu{Core::System::GetInstance().GPU()};
const auto cbufs = gpu.Maxwell3D().state.shader_stages[static_cast<u64>(stage)];
const auto cbuf_addr = gpu.MemoryManager().GpuToCpuAddress(
cbufs.const_buffers[global_region.GetCbufIndex()].address + global_region.GetCbufOffset());
ASSERT(cbuf_addr);
const auto actual_addr_gpu = Memory::Read64(*cbuf_addr);
const auto size = Memory::Read32(*cbuf_addr + 8);
const auto actual_addr = gpu.MemoryManager().GpuToCpuAddress(actual_addr_gpu);
ASSERT(actual_addr);
// Look up global region in the cache based on address
GlobalRegion region = TryGet(*actual_addr);
if (!region) {
// No global region found - create a new one
region = GetUncachedGlobalRegion(*actual_addr, size);
Register(region);
}
return region;
}
} // namespace OpenGL
|
