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
|
// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <glad/glad.h>
#include "common/assert.h"
#include "common/microprofile.h"
#include "video_core/buffer_cache/buffer_cache.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_opengl/gl_buffer_cache.h"
#include "video_core/renderer_opengl/gl_device.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
namespace OpenGL {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
MICROPROFILE_DEFINE(OpenGL_Buffer_Download, "OpenGL", "Buffer Download", MP_RGB(192, 192, 128));
Buffer::Buffer(const Device& device_, VAddr cpu_addr_, std::size_t size_)
: BufferBlock{cpu_addr_, size_} {
gl_buffer.Create();
glNamedBufferData(gl_buffer.handle, static_cast<GLsizeiptr>(size_), nullptr, GL_DYNAMIC_DRAW);
if (device_.UseAssemblyShaders() || device_.HasVertexBufferUnifiedMemory()) {
glMakeNamedBufferResidentNV(gl_buffer.handle, GL_READ_WRITE);
glGetNamedBufferParameterui64vNV(gl_buffer.handle, GL_BUFFER_GPU_ADDRESS_NV, &gpu_address);
}
}
Buffer::~Buffer() = default;
void Buffer::Upload(std::size_t offset, std::size_t data_size, const u8* data) {
glNamedBufferSubData(Handle(), static_cast<GLintptr>(offset),
static_cast<GLsizeiptr>(data_size), data);
}
void Buffer::Download(std::size_t offset, std::size_t data_size, u8* data) {
MICROPROFILE_SCOPE(OpenGL_Buffer_Download);
const GLsizeiptr gl_size = static_cast<GLsizeiptr>(data_size);
const GLintptr gl_offset = static_cast<GLintptr>(offset);
if (read_buffer.handle == 0) {
read_buffer.Create();
glNamedBufferData(read_buffer.handle, static_cast<GLsizeiptr>(Size()), nullptr,
GL_STREAM_READ);
}
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
glCopyNamedBufferSubData(gl_buffer.handle, read_buffer.handle, gl_offset, gl_offset, gl_size);
glGetNamedBufferSubData(read_buffer.handle, gl_offset, gl_size, data);
}
void Buffer::CopyFrom(const Buffer& src, std::size_t src_offset, std::size_t dst_offset,
std::size_t copy_size) {
glCopyNamedBufferSubData(src.Handle(), Handle(), static_cast<GLintptr>(src_offset),
static_cast<GLintptr>(dst_offset), static_cast<GLsizeiptr>(copy_size));
}
OGLBufferCache::OGLBufferCache(VideoCore::RasterizerInterface& rasterizer_,
Tegra::MemoryManager& gpu_memory_, Core::Memory::Memory& cpu_memory_,
const Device& device_, OGLStreamBuffer& stream_buffer_,
StateTracker& state_tracker)
: GenericBufferCache{rasterizer_, gpu_memory_, cpu_memory_, stream_buffer_}, device{device_} {
if (!device.HasFastBufferSubData()) {
return;
}
static constexpr GLsizeiptr size = static_cast<GLsizeiptr>(Maxwell::MaxConstBufferSize);
glCreateBuffers(static_cast<GLsizei>(std::size(cbufs)), std::data(cbufs));
for (const GLuint cbuf : cbufs) {
glNamedBufferData(cbuf, size, nullptr, GL_STREAM_DRAW);
}
}
OGLBufferCache::~OGLBufferCache() {
glDeleteBuffers(static_cast<GLsizei>(std::size(cbufs)), std::data(cbufs));
}
std::shared_ptr<Buffer> OGLBufferCache::CreateBlock(VAddr cpu_addr, std::size_t size) {
return std::make_shared<Buffer>(device, cpu_addr, size);
}
OGLBufferCache::BufferInfo OGLBufferCache::GetEmptyBuffer(std::size_t) {
return {0, 0, 0};
}
OGLBufferCache::BufferInfo OGLBufferCache::ConstBufferUpload(const void* raw_pointer,
std::size_t size) {
DEBUG_ASSERT(cbuf_cursor < std::size(cbufs));
const GLuint cbuf = cbufs[cbuf_cursor++];
glNamedBufferSubData(cbuf, 0, static_cast<GLsizeiptr>(size), raw_pointer);
return {cbuf, 0, 0};
}
} // namespace OpenGL
|
