renderer_opengl: Rewrite stream buffer.
This commit is contained in:
Markus Wick
parent
c8d4ca8915
commit
5d1dd205c4
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@ -30,7 +30,8 @@ MICROPROFILE_DEFINE(OpenGL_Drawing, "OpenGL", "Drawing", MP_RGB(128, 128, 192));
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MICROPROFILE_DEFINE(OpenGL_Blits, "OpenGL", "Blits", MP_RGB(100, 100, 255));
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MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Mgmt", MP_RGB(100, 255, 100));
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RasterizerOpenGL::RasterizerOpenGL() : shader_dirty(true) {
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RasterizerOpenGL::RasterizerOpenGL()
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: shader_dirty(true), vertex_buffer(GL_ARRAY_BUFFER, VERTEX_BUFFER_SIZE) {
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// Clipping plane 0 is always enabled for PICA fixed clip plane z <= 0
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state.clip_distance[0] = true;
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@ -46,13 +47,11 @@ RasterizerOpenGL::RasterizerOpenGL() : shader_dirty(true) {
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texture_cube.Create();
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// Generate VBO, VAO and UBO
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vertex_buffer = OGLStreamBuffer::MakeBuffer(GLAD_GL_ARB_buffer_storage, GL_ARRAY_BUFFER);
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vertex_buffer->Create(VERTEX_BUFFER_SIZE, VERTEX_BUFFER_SIZE / 2);
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vertex_array.Create();
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uniform_buffer.Create();
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state.draw.vertex_array = vertex_array.handle;
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state.draw.vertex_buffer = vertex_buffer->GetHandle();
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state.draw.vertex_buffer = vertex_buffer.GetHandle();
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state.draw.uniform_buffer = uniform_buffer.handle;
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state.Apply();
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@ -499,14 +498,16 @@ void RasterizerOpenGL::DrawTriangles() {
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state.Apply();
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// Draw the vertex batch
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size_t max_vertices = 3 * (VERTEX_BUFFER_SIZE / (3 * sizeof(HardwareVertex)));
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size_t max_vertices = 3 * (vertex_buffer.GetSize() / (3 * sizeof(HardwareVertex)));
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for (size_t base_vertex = 0; base_vertex < vertex_batch.size(); base_vertex += max_vertices) {
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size_t vertices = std::min(max_vertices, vertex_batch.size() - base_vertex);
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size_t vertex_size = vertices * sizeof(HardwareVertex);
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auto map = vertex_buffer->Map(vertex_size, 1);
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memcpy(map.first, vertex_batch.data() + base_vertex, vertex_size);
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vertex_buffer->Unmap();
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glDrawArrays(GL_TRIANGLES, map.second / sizeof(HardwareVertex), (GLsizei)vertices);
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u8* vbo;
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GLintptr offset;
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std::tie(vbo, offset, std::ignore) = vertex_buffer.Map(vertex_size, sizeof(HardwareVertex));
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memcpy(vbo, vertex_batch.data() + base_vertex, vertex_size);
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vertex_buffer.Unmap(vertex_size);
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glDrawArrays(GL_TRIANGLES, offset / sizeof(HardwareVertex), (GLsizei)vertices);
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}
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// Disable scissor test
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@ -239,8 +239,8 @@ private:
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std::array<SamplerInfo, 3> texture_samplers;
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OGLVertexArray vertex_array;
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static constexpr size_t VERTEX_BUFFER_SIZE = 128 * 1024 * 1024;
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std::unique_ptr<OGLStreamBuffer> vertex_buffer;
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static constexpr size_t VERTEX_BUFFER_SIZE = 32 * 1024 * 1024;
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OGLStreamBuffer vertex_buffer;
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OGLBuffer uniform_buffer;
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OGLFramebuffer framebuffer;
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@ -9,174 +9,81 @@
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#include "video_core/renderer_opengl/gl_state.h"
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#include "video_core/renderer_opengl/gl_stream_buffer.h"
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class OrphanBuffer : public OGLStreamBuffer {
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public:
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explicit OrphanBuffer(GLenum target) : OGLStreamBuffer(target) {}
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~OrphanBuffer() override;
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OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent)
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: gl_target(target), buffer_size(size) {
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gl_buffer.Create();
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glBindBuffer(gl_target, gl_buffer.handle);
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private:
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void Create(size_t size, size_t sync_subdivide) override;
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void Release() override;
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if (GLAD_GL_ARB_buffer_storage) {
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persistent = true;
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coherent = prefer_coherent;
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GLbitfield flags =
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | (coherent ? GL_MAP_COHERENT_BIT : 0);
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glBufferStorage(gl_target, buffer_size, nullptr, flags);
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mapped_ptr = static_cast<u8*>(glMapBufferRange(
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gl_target, 0, buffer_size, flags | (coherent ? 0 : GL_MAP_FLUSH_EXPLICIT_BIT)));
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} else {
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glBufferData(gl_target, buffer_size, nullptr, GL_STREAM_DRAW);
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}
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}
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std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) override;
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void Unmap() override;
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std::vector<u8> data;
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};
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class StorageBuffer : public OGLStreamBuffer {
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public:
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explicit StorageBuffer(GLenum target) : OGLStreamBuffer(target) {}
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~StorageBuffer() override;
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private:
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void Create(size_t size, size_t sync_subdivide) override;
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void Release() override;
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std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) override;
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void Unmap() override;
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struct Fence {
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OGLSync sync;
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size_t offset;
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};
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std::deque<Fence> head;
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std::deque<Fence> tail;
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u8* mapped_ptr;
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};
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OGLStreamBuffer::OGLStreamBuffer(GLenum target) {
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gl_target = target;
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OGLStreamBuffer::~OGLStreamBuffer() {
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if (persistent) {
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glBindBuffer(gl_target, gl_buffer.handle);
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glUnmapBuffer(gl_target);
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}
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gl_buffer.Release();
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}
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GLuint OGLStreamBuffer::GetHandle() const {
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return gl_buffer.handle;
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}
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std::unique_ptr<OGLStreamBuffer> OGLStreamBuffer::MakeBuffer(bool storage_buffer, GLenum target) {
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if (storage_buffer) {
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return std::make_unique<StorageBuffer>(target);
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}
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return std::make_unique<OrphanBuffer>(target);
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GLsizeiptr OGLStreamBuffer::GetSize() const {
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return buffer_size;
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}
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OrphanBuffer::~OrphanBuffer() {
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Release();
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}
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void OrphanBuffer::Create(size_t size, size_t /*sync_subdivide*/) {
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buffer_pos = 0;
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buffer_size = size;
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data.resize(buffer_size);
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if (gl_buffer.handle == 0) {
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gl_buffer.Create();
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glBindBuffer(gl_target, gl_buffer.handle);
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}
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glBufferData(gl_target, static_cast<GLsizeiptr>(buffer_size), nullptr, GL_STREAM_DRAW);
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}
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void OrphanBuffer::Release() {
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gl_buffer.Release();
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}
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std::pair<u8*, GLintptr> OrphanBuffer::Map(size_t size, size_t alignment) {
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buffer_pos = Common::AlignUp(buffer_pos, alignment);
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if (buffer_pos + size > buffer_size) {
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Create(std::max(buffer_size, size), 0);
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}
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mapped_size = size;
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return std::make_pair(&data[buffer_pos], static_cast<GLintptr>(buffer_pos));
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}
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void OrphanBuffer::Unmap() {
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glBufferSubData(gl_target, static_cast<GLintptr>(buffer_pos),
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static_cast<GLsizeiptr>(mapped_size), &data[buffer_pos]);
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buffer_pos += mapped_size;
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}
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StorageBuffer::~StorageBuffer() {
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Release();
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}
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void StorageBuffer::Create(size_t size, size_t sync_subdivide) {
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if (gl_buffer.handle != 0)
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return;
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buffer_pos = 0;
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buffer_size = size;
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buffer_sync_subdivide = std::max<size_t>(sync_subdivide, 1);
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gl_buffer.Create();
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glBindBuffer(gl_target, gl_buffer.handle);
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glBufferStorage(gl_target, static_cast<GLsizeiptr>(buffer_size), nullptr,
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
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mapped_ptr = reinterpret_cast<u8*>(
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glMapBufferRange(gl_target, 0, static_cast<GLsizeiptr>(buffer_size),
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GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_FLUSH_EXPLICIT_BIT));
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}
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void StorageBuffer::Release() {
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if (gl_buffer.handle == 0)
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return;
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glUnmapBuffer(gl_target);
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gl_buffer.Release();
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head.clear();
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tail.clear();
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}
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std::pair<u8*, GLintptr> StorageBuffer::Map(size_t size, size_t alignment) {
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std::tuple<u8*, GLintptr, bool> OGLStreamBuffer::Map(GLsizeiptr size, GLintptr alignment) {
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ASSERT(size <= buffer_size);
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OGLSync sync;
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buffer_pos = Common::AlignUp(buffer_pos, alignment);
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size_t effective_offset = Common::AlignDown(buffer_pos, buffer_sync_subdivide);
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if (!head.empty() &&
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(effective_offset > head.back().offset || buffer_pos + size > buffer_size)) {
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ASSERT(head.back().sync.handle == 0);
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head.back().sync.Create();
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}
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if (buffer_pos + size > buffer_size) {
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if (!tail.empty()) {
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std::swap(sync, tail.back().sync);
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tail.clear();
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}
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std::swap(tail, head);
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buffer_pos = 0;
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effective_offset = 0;
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}
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while (!tail.empty() && buffer_pos + size > tail.front().offset) {
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std::swap(sync, tail.front().sync);
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tail.pop_front();
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}
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if (sync.handle != 0) {
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glClientWaitSync(sync.handle, GL_SYNC_FLUSH_COMMANDS_BIT, GL_TIMEOUT_IGNORED);
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sync.Release();
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}
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if (head.empty() || effective_offset > head.back().offset) {
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head.emplace_back();
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head.back().offset = effective_offset;
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}
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ASSERT(alignment <= buffer_size);
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mapped_size = size;
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return std::make_pair(&mapped_ptr[buffer_pos], static_cast<GLintptr>(buffer_pos));
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if (alignment > 0) {
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buffer_pos = Common::AlignUp<size_t>(buffer_pos, alignment);
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}
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bool invalidate = false;
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if (buffer_pos + size > buffer_size) {
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buffer_pos = 0;
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invalidate = true;
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if (persistent) {
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glUnmapBuffer(gl_target);
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}
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}
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if (invalidate | !persistent) {
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GLbitfield flags = GL_MAP_WRITE_BIT | (persistent ? GL_MAP_PERSISTENT_BIT : 0) |
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(coherent ? GL_MAP_COHERENT_BIT : GL_MAP_FLUSH_EXPLICIT_BIT) |
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(invalidate ? GL_MAP_INVALIDATE_BUFFER_BIT : GL_MAP_UNSYNCHRONIZED_BIT);
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mapped_ptr = static_cast<u8*>(
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glMapBufferRange(gl_target, buffer_pos, buffer_size - buffer_pos, flags));
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mapped_offset = buffer_pos;
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}
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return std::make_tuple(mapped_ptr + buffer_pos - mapped_offset, buffer_pos, invalidate);
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}
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void StorageBuffer::Unmap() {
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glFlushMappedBufferRange(gl_target, static_cast<GLintptr>(buffer_pos),
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static_cast<GLsizeiptr>(mapped_size));
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buffer_pos += mapped_size;
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void OGLStreamBuffer::Unmap(GLsizeiptr size) {
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ASSERT(size <= mapped_size);
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if (!coherent) {
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glFlushMappedBufferRange(gl_target, buffer_pos - mapped_offset, size);
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}
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if (!persistent) {
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glUnmapBuffer(gl_target);
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}
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buffer_pos += size;
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}
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@ -2,33 +2,41 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <memory>
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#include <tuple>
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#include <glad/glad.h>
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#include "common/common_types.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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class OGLStreamBuffer : private NonCopyable {
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public:
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explicit OGLStreamBuffer(GLenum target);
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virtual ~OGLStreamBuffer() = default;
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public:
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static std::unique_ptr<OGLStreamBuffer> MakeBuffer(bool storage_buffer, GLenum target);
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virtual void Create(size_t size, size_t sync_subdivide) = 0;
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virtual void Release() {}
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explicit OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent = false);
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~OGLStreamBuffer();
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GLuint GetHandle() const;
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GLsizeiptr GetSize() const;
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virtual std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) = 0;
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virtual void Unmap() = 0;
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/*
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* Allocates a linear chunk of memory in the GPU buffer with at least "size" bytes
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* and the optional alignment requirement.
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* If the buffer is full, the whole buffer is reallocated which invalidates old chunks.
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* The return values are the pointer to the new chunk, the offset within the buffer,
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* and the invalidation flag for previous chunks.
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* The actual used size must be specified on unmapping the chunk.
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*/
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std::tuple<u8*, GLintptr, bool> Map(GLsizeiptr size, GLintptr alignment = 0);
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protected:
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void Unmap(GLsizeiptr size);
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private:
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OGLBuffer gl_buffer;
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GLenum gl_target;
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size_t buffer_pos = 0;
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size_t buffer_size = 0;
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size_t buffer_sync_subdivide = 0;
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size_t mapped_size = 0;
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bool coherent = false;
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bool persistent = false;
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GLintptr buffer_pos = 0;
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GLsizeiptr buffer_size = 0;
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GLintptr mapped_offset = 0;
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GLsizeiptr mapped_size = 0;
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u8* mapped_ptr = nullptr;
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};
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