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gl_buffer_cache: Return used buffer from Upload function

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This commit is contained in:
ReinUsesLisp
2019-05-27 19:55:44 -03:00
parent a6d2f52fc3
commit b54fb8fc4c
4 changed files with 35 additions and 36 deletions
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23
src/video_core/renderer_opengl/gl_buffer_cache.cpp
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@@ -4,6 +4,7 @@
#include <cstring>
#include <memory>
#include <utility>
#include "common/alignment.h"
#include "core/core.h"
@@ -21,9 +22,10 @@ CachedBufferEntry::CachedBufferEntry(VAddr cpu_addr, std::size_t size, GLintptr
OGLBufferCache::OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size)
: RasterizerCache{rasterizer}, stream_buffer(size, true) {}
GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment,
bool cache) {
std::pair<GLuint, GLintptr> OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size,
std::size_t alignment, bool cache) {
std::lock_guard lock{mutex};
auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
// Cache management is a big overhead, so only cache entries with a given size.
@@ -35,7 +37,7 @@ GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::
auto entry = TryGet(host_ptr);
if (entry) {
if (entry->GetSize() >= size && entry->GetAlignment() == alignment) {
return entry->GetOffset();
return {stream_buffer.GetHandle(), entry->GetOffset()};
}
Unregister(entry);
}
@@ -45,7 +47,7 @@ GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::
const GLintptr uploaded_offset = buffer_offset;
if (!host_ptr) {
return uploaded_offset;
return {stream_buffer.GetHandle(), uploaded_offset};
}
std::memcpy(buffer_ptr, host_ptr, size);
@@ -58,11 +60,12 @@ GLintptr OGLBufferCache::UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::
Register(entry);
}
return uploaded_offset;
return {stream_buffer.GetHandle(), uploaded_offset};
}
GLintptr OGLBufferCache::UploadHostMemory(const void* raw_pointer, std::size_t size,
std::size_t alignment) {
std::pair<GLuint, GLintptr> OGLBufferCache::UploadHostMemory(const void* raw_pointer,
std::size_t size,
std::size_t alignment) {
std::lock_guard lock{mutex};
AlignBuffer(alignment);
std::memcpy(buffer_ptr, raw_pointer, size);
@@ -70,7 +73,7 @@ GLintptr OGLBufferCache::UploadHostMemory(const void* raw_pointer, std::size_t s
buffer_ptr += size;
buffer_offset += size;
return uploaded_offset;
return {stream_buffer.GetHandle(), uploaded_offset};
}
bool OGLBufferCache::Map(std::size_t max_size) {
@@ -89,10 +92,6 @@ void OGLBufferCache::Unmap() {
stream_buffer.Unmap(buffer_offset - buffer_offset_base);
}
GLuint OGLBufferCache::GetHandle() const {
return stream_buffer.GetHandle();
}
void OGLBufferCache::AlignBuffer(std::size_t alignment) {
// Align the offset, not the mapped pointer
const GLintptr offset_aligned =

16
src/video_core/renderer_opengl/gl_buffer_cache.h
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@@ -7,6 +7,7 @@
#include <cstddef>
#include <memory>
#include <tuple>
#include <utility>
#include "common/common_types.h"
#include "video_core/rasterizer_cache.h"
@@ -53,19 +54,18 @@ class OGLBufferCache final : public RasterizerCache<std::shared_ptr<CachedBuffer
public:
explicit OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size);
/// Uploads data from a guest GPU address. Returns host's buffer offset where it's been
/// allocated.
GLintptr UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment = 4,
bool cache = true);
/// Uploads data from a guest GPU address. Returns the OpenGL buffer where it's located and its
/// offset.
std::pair<GLuint, GLintptr> UploadMemory(GPUVAddr gpu_addr, std::size_t size,
std::size_t alignment = 4, bool cache = true);
/// Uploads from a host memory. Returns host's buffer offset where it's been allocated.
GLintptr UploadHostMemory(const void* raw_pointer, std::size_t size, std::size_t alignment = 4);
/// Uploads from a host memory. Returns the OpenGL buffer where it's located and its offset.
std::pair<GLuint, GLintptr> UploadHostMemory(const void* raw_pointer, std::size_t size,
std::size_t alignment = 4);
bool Map(std::size_t max_size);
void Unmap();
GLuint GetHandle() const;
protected:
void AlignBuffer(std::size_t alignment);

30
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@@ -129,8 +129,6 @@ GLuint RasterizerOpenGL::SetupVertexFormat() {
state.draw.vertex_array = vao;
state.ApplyVertexArrayState();
glVertexArrayElementBuffer(vao, buffer_cache.GetHandle());
// Use the vertex array as-is, assumes that the data is formatted correctly for OpenGL.
// Enables the first 16 vertex attributes always, as we don't know which ones are actually
// used until shader time. Note, Tegra technically supports 32, but we're capping this to 16
@@ -197,10 +195,10 @@ void RasterizerOpenGL::SetupVertexBuffer(GLuint vao) {
ASSERT(end > start);
const u64 size = end - start + 1;
const GLintptr vertex_buffer_offset = buffer_cache.UploadMemory(start, size);
const auto [vertex_buffer, vertex_buffer_offset] = buffer_cache.UploadMemory(start, size);
// Bind the vertex array to the buffer at the current offset.
glVertexArrayVertexBuffer(vao, index, buffer_cache.GetHandle(), vertex_buffer_offset,
glVertexArrayVertexBuffer(vao, index, vertex_buffer, vertex_buffer_offset,
vertex_array.stride);
if (regs.instanced_arrays.IsInstancingEnabled(index) && vertex_array.divisor != 0) {
@@ -215,12 +213,16 @@ void RasterizerOpenGL::SetupVertexBuffer(GLuint vao) {
gpu.dirty_flags.vertex_array.reset();
}
GLintptr RasterizerOpenGL::SetupIndexBuffer() {
GLintptr RasterizerOpenGL::SetupIndexBuffer(GLuint vao) {
if (accelerate_draw != AccelDraw::Indexed) {
return 0;
}
MICROPROFILE_SCOPE(OpenGL_Index);
const auto& regs = system.GPU().Maxwell3D().regs;
return buffer_cache.UploadMemory(regs.index_array.IndexStart(), CalculateIndexBufferSize());
const std::size_t size = CalculateIndexBufferSize();
const auto [buffer, offset] = buffer_cache.UploadMemory(regs.index_array.IndexStart(), size);
glVertexArrayElementBuffer(vao, buffer);
return offset;
}
DrawParameters RasterizerOpenGL::SetupDraw(GLintptr index_buffer_offset) {
@@ -235,7 +237,6 @@ DrawParameters RasterizerOpenGL::SetupDraw(GLintptr index_buffer_offset) {
params.primitive_mode = MaxwellToGL::PrimitiveTopology(regs.draw.topology);
if (is_indexed) {
MICROPROFILE_SCOPE(OpenGL_Index);
params.index_format = MaxwellToGL::IndexFormat(regs.index_array.format);
params.count = regs.index_array.count;
params.index_buffer_offset = index_buffer_offset;
@@ -278,12 +279,11 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
GLShader::MaxwellUniformData ubo{};
ubo.SetFromRegs(gpu, stage);
const GLintptr offset =
const auto [buffer, offset] =
buffer_cache.UploadHostMemory(&ubo, sizeof(ubo), device.GetUniformBufferAlignment());
// Bind the emulation info buffer
bind_ubo_pushbuffer.Push(buffer_cache.GetHandle(), offset,
static_cast<GLsizeiptr>(sizeof(ubo)));
bind_ubo_pushbuffer.Push(buffer, offset, static_cast<GLsizeiptr>(sizeof(ubo)));
Shader shader{shader_cache.GetStageProgram(program)};
@@ -651,11 +651,11 @@ void RasterizerOpenGL::DrawArrays() {
}
// Prepare vertex array format.
const GLuint vertex_array = SetupVertexFormat();
const GLuint vao = SetupVertexFormat();
// Upload vertex and index data.
SetupVertexBuffer(vertex_array);
const GLintptr index_buffer_offset = SetupIndexBuffer();
SetupVertexBuffer(vao);
const GLintptr index_buffer_offset = SetupIndexBuffer(vao);
// Setup draw parameters. It will automatically choose what glDraw* method to use.
const DrawParameters params = SetupDraw(index_buffer_offset);
@@ -791,8 +791,8 @@ void RasterizerOpenGL::SetupConstBuffer(const Tegra::Engines::ConstBufferInfo& b
ASSERT_MSG(size <= MaxConstbufferSize, "Constant buffer is too big");
const std::size_t alignment = device.GetUniformBufferAlignment();
const GLintptr offset = buffer_cache.UploadMemory(buffer.address, size, alignment);
bind_ubo_pushbuffer.Push(buffer_cache.GetHandle(), offset, size);
const auto [cbuf, offset] = buffer_cache.UploadMemory(buffer.address, size, alignment);
bind_ubo_pushbuffer.Push(cbuf, offset, size);
}
void RasterizerOpenGL::SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage,

2
src/video_core/renderer_opengl/gl_rasterizer.h
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@@ -220,7 +220,7 @@ private:
void SetupVertexBuffer(GLuint vao);
GLintptr SetupIndexBuffer();
GLintptr SetupIndexBuffer(GLuint vao);
DrawParameters SetupDraw(GLintptr index_buffer_offset);