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gl_rasterizer: Implement global memory management

This commit is contained in:
ReinUsesLisp 2019-01-05 01:01:38 -03:00
parent 3b84e04af1
commit 9f803299de
6 changed files with 140 additions and 4 deletions

View File

@ -4,8 +4,13 @@
#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 {
@ -18,7 +23,72 @@ CachedGlobalRegion::CachedGlobalRegion(VAddr addr, u32 size) : addr{addr}, size{
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(const GlobalRegion& region) {
reserve[region->GetAddr()] = 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

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@ -5,9 +5,13 @@
#pragma once
#include <memory>
#include <unordered_map>
#include <glad/glad.h>
#include "common/assert.h"
#include "common/common_types.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/rasterizer_cache.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
@ -40,6 +44,9 @@ public:
return buffer.handle;
}
/// Reloads the global region from guest memory
void Reload(u32 size_);
// TODO(Rodrigo): When global memory is written (STG), implement flushing
void Flush() override {
UNIMPLEMENTED();
@ -55,6 +62,17 @@ private:
class GlobalRegionCacheOpenGL final : public RasterizerCache<GlobalRegion> {
public:
explicit GlobalRegionCacheOpenGL(RasterizerOpenGL& rasterizer);
/// Gets the current specified shader stage program
GlobalRegion GetGlobalRegion(const GLShader::GlobalMemoryEntry& descriptor,
Tegra::Engines::Maxwell3D::Regs::ShaderStage stage);
private:
GlobalRegion TryGetReservedGlobalRegion(VAddr addr, u32 size) const;
GlobalRegion GetUncachedGlobalRegion(VAddr addr, u32 size);
void ReserveGlobalRegion(const GlobalRegion& region);
std::unordered_map<VAddr, GlobalRegion> reserve;
};
} // namespace OpenGL

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@ -300,6 +300,7 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
// Next available bindpoints to use when uploading the const buffers and textures to the GLSL
// shaders. The constbuffer bindpoint starts after the shader stage configuration bind points.
u32 current_constbuffer_bindpoint = Tegra::Engines::Maxwell3D::Regs::MaxShaderStage;
u32 current_gmem_bindpoint = 0;
u32 current_texture_bindpoint = 0;
std::array<bool, Maxwell::NumClipDistances> clip_distances{};
@ -358,6 +359,10 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
SetupConstBuffers(static_cast<Maxwell::ShaderStage>(stage), shader, primitive_mode,
current_constbuffer_bindpoint);
// Configure global memory regions for this shader stage.
current_gmem_bindpoint = SetupGlobalRegions(static_cast<Maxwell::ShaderStage>(stage),
shader, primitive_mode, current_gmem_bindpoint);
// Configure the textures for this shader stage.
current_texture_bindpoint = SetupTextures(static_cast<Maxwell::ShaderStage>(stage), shader,
primitive_mode, current_texture_bindpoint);
@ -993,6 +998,23 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, Shader& shad
return current_bindpoint + static_cast<u32>(entries.size());
}
u32 RasterizerOpenGL::SetupGlobalRegions(Maxwell::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint) {
for (const auto& global_region : shader->GetShaderEntries().global_memory_entries) {
const auto& region =
global_cache.GetGlobalRegion(global_region, static_cast<Maxwell::ShaderStage>(stage));
const GLuint block_index{shader->GetProgramResourceIndex(global_region)};
ASSERT(block_index != GL_INVALID_INDEX);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, current_bindpoint, region->GetBufferHandle());
glShaderStorageBlockBinding(shader->GetProgramHandle(primitive_mode), block_index,
current_bindpoint);
++current_bindpoint;
}
return current_bindpoint;
}
u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_unit) {
MICROPROFILE_SCOPE(OpenGL_Texture);

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@ -137,6 +137,16 @@ private:
u32 SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint);
/**
* Configures the current global memory regions to use for the draw command.
* @param stage The shader stage to configure buffers for.
* @param shader The shader object that contains the specified stage.
* @param current_bindpoint The offset at which to start counting new buffer bindpoints.
* @returns The next available bindpoint for use in the next shader stage.
*/
u32 SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint);
/**
* Configures the current textures to use for the draw command.
* @param stage The shader stage to configure textures for.

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@ -108,11 +108,23 @@ CachedShader::CachedShader(VAddr addr, Maxwell::ShaderProgram program_type)
}
GLuint CachedShader::GetProgramResourceIndex(const GLShader::ConstBufferEntry& buffer) {
const auto search{resource_cache.find(buffer.GetHash())};
if (search == resource_cache.end()) {
const auto search{cbuf_resource_cache.find(buffer.GetHash())};
if (search == cbuf_resource_cache.end()) {
const GLuint index{
glGetProgramResourceIndex(program.handle, GL_UNIFORM_BLOCK, buffer.GetName().c_str())};
resource_cache[buffer.GetHash()] = index;
cbuf_resource_cache[buffer.GetHash()] = index;
return index;
}
return search->second;
}
GLuint CachedShader::GetProgramResourceIndex(const GLShader::GlobalMemoryEntry& global_mem) {
const auto search{gmem_resource_cache.find(global_mem.GetHash())};
if (search == gmem_resource_cache.end()) {
const GLuint index{glGetProgramResourceIndex(program.handle, GL_SHADER_STORAGE_BLOCK,
global_mem.GetName().c_str())};
gmem_resource_cache[global_mem.GetHash()] = index;
return index;
}

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@ -76,6 +76,9 @@ public:
/// Gets the GL program resource location for the specified resource, caching as needed
GLuint GetProgramResourceIndex(const GLShader::ConstBufferEntry& buffer);
/// Gets the GL program resource location for the specified resource, caching as needed
GLuint GetProgramResourceIndex(const GLShader::GlobalMemoryEntry& global_mem);
/// Gets the GL uniform location for the specified resource, caching as needed
GLint GetUniformLocation(const GLShader::SamplerEntry& sampler);
@ -107,7 +110,8 @@ private:
OGLProgram triangles_adjacency;
} geometry_programs;
std::map<u32, GLuint> resource_cache;
std::map<u32, GLuint> cbuf_resource_cache;
std::map<u32, GLuint> gmem_resource_cache;
std::map<u32, GLint> uniform_cache;
};