// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <bitset>
#include <memory>
#include <string>
#include <string_view>
#include <tuple>
#include <utility>
#include <glad/glad.h>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/math_util.h"
#include "common/microprofile.h"
#include "common/scope_exit.h"
#include "common/settings.h"
#include "core/core.h"
#include "core/hle/kernel/k_process.h"
#include "core/memory.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_type.h"
#include "video_core/memory_manager.h"
#include "video_core/renderer_opengl/gl_device.h"
#include "video_core/renderer_opengl/gl_query_cache.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_shader_cache.h"
#include "video_core/renderer_opengl/gl_texture_cache.h"
#include "video_core/renderer_opengl/maxwell_to_gl.h"
#include "video_core/renderer_opengl/renderer_opengl.h"
#include "video_core/shader_cache.h"
#include "video_core/texture_cache/texture_cache.h"
namespace OpenGL {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
using GLvec4 = std::array<GLfloat, 4>;
using Tegra::Engines::ShaderType;
using VideoCore::Surface::PixelFormat;
using VideoCore::Surface::SurfaceTarget;
using VideoCore::Surface::SurfaceType;
MICROPROFILE_DEFINE(OpenGL_Drawing, "OpenGL", "Drawing", MP_RGB(128, 128, 192));
MICROPROFILE_DEFINE(OpenGL_Clears, "OpenGL", "Clears", MP_RGB(128, 128, 192));
MICROPROFILE_DEFINE(OpenGL_Blits, "OpenGL", "Blits", MP_RGB(128, 128, 192));
MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Management", MP_RGB(100, 255, 100));
namespace {
constexpr size_t NUM_SUPPORTED_VERTEX_ATTRIBUTES = 16;
void oglEnable(GLenum cap, bool state) {
(state ? glEnable : glDisable)(cap);
}
} // Anonymous namespace
RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& emu_window_, Tegra::GPU& gpu_,
Core::Memory::Memory& cpu_memory_, const Device& device_,
ScreenInfo& screen_info_, ProgramManager& program_manager_,
StateTracker& state_tracker_)
: RasterizerAccelerated(cpu_memory_), gpu(gpu_), maxwell3d(gpu.Maxwell3D()),
kepler_compute(gpu.KeplerCompute()), gpu_memory(gpu.MemoryManager()), device(device_),
screen_info(screen_info_), program_manager(program_manager_), state_tracker(state_tracker_),
texture_cache_runtime(device, program_manager, state_tracker),
texture_cache(texture_cache_runtime, *this, maxwell3d, kepler_compute, gpu_memory),
buffer_cache_runtime(device),
buffer_cache(*this, maxwell3d, kepler_compute, gpu_memory, cpu_memory_, buffer_cache_runtime),
shader_cache(*this, emu_window_, maxwell3d, kepler_compute, gpu_memory, device, texture_cache,
buffer_cache, program_manager, state_tracker),
query_cache(*this, maxwell3d, gpu_memory), accelerate_dma(buffer_cache),
fence_manager(*this, gpu, texture_cache, buffer_cache, query_cache) {}
RasterizerOpenGL::~RasterizerOpenGL() = default;
void RasterizerOpenGL::SyncVertexFormats() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::VertexFormats]) {
return;
}
flags[Dirty::VertexFormats] = false;
// 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 for now to
// avoid OpenGL errors.
// TODO(Subv): Analyze the shader to identify which attributes are actually used and don't
// assume every shader uses them all.
for (std::size_t index = 0; index < NUM_SUPPORTED_VERTEX_ATTRIBUTES; ++index) {
if (!flags[Dirty::VertexFormat0 + index]) {
continue;
}
flags[Dirty::VertexFormat0 + index] = false;
const auto attrib = maxwell3d.regs.vertex_attrib_format[index];
const auto gl_index = static_cast<GLuint>(index);
// Disable constant attributes.
if (attrib.IsConstant()) {
glDisableVertexAttribArray(gl_index);
continue;
}
glEnableVertexAttribArray(gl_index);
if (attrib.type == Maxwell::VertexAttribute::Type::SignedInt ||
attrib.type == Maxwell::VertexAttribute::Type::UnsignedInt) {
glVertexAttribIFormat(gl_index, attrib.ComponentCount(),
MaxwellToGL::VertexFormat(attrib), attrib.offset);
} else {
glVertexAttribFormat(gl_index, attrib.ComponentCount(),
MaxwellToGL::VertexFormat(attrib),
attrib.IsNormalized() ? GL_TRUE : GL_FALSE, attrib.offset);
}
glVertexAttribBinding(gl_index, attrib.buffer);
}
}
void RasterizerOpenGL::SyncVertexInstances() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::VertexInstances]) {
return;
}
flags[Dirty::VertexInstances] = false;
const auto& regs = maxwell3d.regs;
for (std::size_t index = 0; index < NUM_SUPPORTED_VERTEX_ATTRIBUTES; ++index) {
if (!flags[Dirty::VertexInstance0 + index]) {
continue;
}
flags[Dirty::VertexInstance0 + index] = false;
const auto gl_index = static_cast<GLuint>(index);
const bool instancing_enabled = regs.instanced_arrays.IsInstancingEnabled(gl_index);
const GLuint divisor = instancing_enabled ? regs.vertex_array[index].divisor : 0;
glVertexBindingDivisor(gl_index, divisor);
}
}
void RasterizerOpenGL::LoadDiskResources(u64 title_id, std::stop_token stop_loading,
const VideoCore::DiskResourceLoadCallback& callback) {}
void RasterizerOpenGL::Clear() {
MICROPROFILE_SCOPE(OpenGL_Clears);
if (!maxwell3d.ShouldExecute()) {
return;
}
const auto& regs = maxwell3d.regs;
bool use_color{};
bool use_depth{};
bool use_stencil{};
if (regs.clear_buffers.R || regs.clear_buffers.G || regs.clear_buffers.B ||
regs.clear_buffers.A) {
use_color = true;
const GLuint index = regs.clear_buffers.RT;
state_tracker.NotifyColorMask(index);
glColorMaski(index, regs.clear_buffers.R != 0, regs.clear_buffers.G != 0,
regs.clear_buffers.B != 0, regs.clear_buffers.A != 0);
// TODO(Rodrigo): Determine if clamping is used on clears
SyncFragmentColorClampState();
SyncFramebufferSRGB();
}
if (regs.clear_buffers.Z) {
ASSERT_MSG(regs.zeta_enable != 0, "Tried to clear Z but buffer is not enabled!");
use_depth = true;
state_tracker.NotifyDepthMask();
glDepthMask(GL_TRUE);
}
if (regs.clear_buffers.S) {
ASSERT_MSG(regs.zeta_enable, "Tried to clear stencil but buffer is not enabled!");
use_stencil = true;
}
if (!use_color && !use_depth && !use_stencil) {
// No color surface nor depth/stencil surface are enabled
return;
}
SyncRasterizeEnable();
SyncStencilTestState();
if (regs.clear_flags.scissor) {
SyncScissorTest();
} else {
state_tracker.NotifyScissor0();
glDisablei(GL_SCISSOR_TEST, 0);
}
UNIMPLEMENTED_IF(regs.clear_flags.viewport);
std::scoped_lock lock{texture_cache.mutex};
texture_cache.UpdateRenderTargets(true);
state_tracker.BindFramebuffer(texture_cache.GetFramebuffer()->Handle());
if (use_color) {
glClearBufferfv(GL_COLOR, regs.clear_buffers.RT, regs.clear_color);
}
if (use_depth && use_stencil) {
glClearBufferfi(GL_DEPTH_STENCIL, 0, regs.clear_depth, regs.clear_stencil);
} else if (use_depth) {
glClearBufferfv(GL_DEPTH, 0, ®s.clear_depth);
} else if (use_stencil) {
glClearBufferiv(GL_STENCIL, 0, ®s.clear_stencil);
}
++num_queued_commands;
}
void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
MICROPROFILE_SCOPE(OpenGL_Drawing);
query_cache.UpdateCounters();
SyncState();
GraphicsProgram* const program{shader_cache.CurrentGraphicsProgram()};
std::scoped_lock lock{buffer_cache.mutex, texture_cache.mutex};
program->Configure(is_indexed);
const GLenum primitive_mode = MaxwellToGL::PrimitiveTopology(maxwell3d.regs.draw.topology);
BeginTransformFeedback(program, primitive_mode);
const GLuint base_instance = static_cast<GLuint>(maxwell3d.regs.vb_base_instance);
const GLsizei num_instances =
static_cast<GLsizei>(is_instanced ? maxwell3d.mme_draw.instance_count : 1);
if (is_indexed) {
const GLint base_vertex = static_cast<GLint>(maxwell3d.regs.vb_element_base);
const GLsizei num_vertices = static_cast<GLsizei>(maxwell3d.regs.index_array.count);
const GLvoid* const offset = buffer_cache_runtime.IndexOffset();
const GLenum format = MaxwellToGL::IndexFormat(maxwell3d.regs.index_array.format);
if (num_instances == 1 && base_instance == 0 && base_vertex == 0) {
glDrawElements(primitive_mode, num_vertices, format, offset);
} else if (num_instances == 1 && base_instance == 0) {
glDrawElementsBaseVertex(primitive_mode, num_vertices, format, offset, base_vertex);
} else if (base_vertex == 0 && base_instance == 0) {
glDrawElementsInstanced(primitive_mode, num_vertices, format, offset, num_instances);
} else if (base_vertex == 0) {
glDrawElementsInstancedBaseInstance(primitive_mode, num_vertices, format, offset,
num_instances, base_instance);
} else if (base_instance == 0) {
glDrawElementsInstancedBaseVertex(primitive_mode, num_vertices, format, offset,
num_instances, base_vertex);
} else {
glDrawElementsInstancedBaseVertexBaseInstance(primitive_mode, num_vertices, format,
offset, num_instances, base_vertex,
base_instance);
}
} else {
const GLint base_vertex = static_cast<GLint>(maxwell3d.regs.vertex_buffer.first);
const GLsizei num_vertices = static_cast<GLsizei>(maxwell3d.regs.vertex_buffer.count);
if (num_instances == 1 && base_instance == 0) {
glDrawArrays(primitive_mode, base_vertex, num_vertices);
} else if (base_instance == 0) {
glDrawArraysInstanced(primitive_mode, base_vertex, num_vertices, num_instances);
} else {
glDrawArraysInstancedBaseInstance(primitive_mode, base_vertex, num_vertices,
num_instances, base_instance);
}
}
EndTransformFeedback();
++num_queued_commands;
gpu.TickWork();
}
void RasterizerOpenGL::DispatchCompute() {
ComputeProgram* const program{shader_cache.CurrentComputeProgram()};
if (!program) {
return;
}
program->Configure();
const auto& qmd{kepler_compute.launch_description};
glDispatchCompute(qmd.grid_dim_x, qmd.grid_dim_y, qmd.grid_dim_z);
++num_queued_commands;
}
void RasterizerOpenGL::ResetCounter(VideoCore::QueryType type) {
query_cache.ResetCounter(type);
}
void RasterizerOpenGL::Query(GPUVAddr gpu_addr, VideoCore::QueryType type,
std::optional<u64> timestamp) {
query_cache.Query(gpu_addr, type, timestamp);
}
void RasterizerOpenGL::BindGraphicsUniformBuffer(size_t stage, u32 index, GPUVAddr gpu_addr,
u32 size) {
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.BindGraphicsUniformBuffer(stage, index, gpu_addr, size);
}
void RasterizerOpenGL::DisableGraphicsUniformBuffer(size_t stage, u32 index) {
buffer_cache.DisableGraphicsUniformBuffer(stage, index);
}
void RasterizerOpenGL::FlushAll() {}
void RasterizerOpenGL::FlushRegion(VAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
if (addr == 0 || size == 0) {
return;
}
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.DownloadMemory(addr, size);
}
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.DownloadMemory(addr, size);
}
query_cache.FlushRegion(addr, size);
}
bool RasterizerOpenGL::MustFlushRegion(VAddr addr, u64 size) {
std::scoped_lock lock{buffer_cache.mutex, texture_cache.mutex};
if (!Settings::IsGPULevelHigh()) {
return buffer_cache.IsRegionGpuModified(addr, size);
}
return texture_cache.IsRegionGpuModified(addr, size) ||
buffer_cache.IsRegionGpuModified(addr, size);
}
void RasterizerOpenGL::InvalidateRegion(VAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
if (addr == 0 || size == 0) {
return;
}
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.WriteMemory(addr, size);
}
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.WriteMemory(addr, size);
}
shader_cache.InvalidateRegion(addr, size);
query_cache.InvalidateRegion(addr, size);
}
void RasterizerOpenGL::OnCPUWrite(VAddr addr, u64 size) {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
if (addr == 0 || size == 0) {
return;
}
shader_cache.OnCPUWrite(addr, size);
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.WriteMemory(addr, size);
}
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.CachedWriteMemory(addr, size);
}
}
void RasterizerOpenGL::SyncGuestHost() {
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
shader_cache.SyncGuestHost();
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.FlushCachedWrites();
}
}
void RasterizerOpenGL::UnmapMemory(VAddr addr, u64 size) {
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.UnmapMemory(addr, size);
}
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.WriteMemory(addr, size);
}
shader_cache.OnCPUWrite(addr, size);
}
void RasterizerOpenGL::ModifyGPUMemory(GPUVAddr addr, u64 size) {
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.UnmapGPUMemory(addr, size);
}
}
void RasterizerOpenGL::SignalSemaphore(GPUVAddr addr, u32 value) {
if (!gpu.IsAsync()) {
gpu_memory.Write<u32>(addr, value);
return;
}
fence_manager.SignalSemaphore(addr, value);
}
void RasterizerOpenGL::SignalSyncPoint(u32 value) {
if (!gpu.IsAsync()) {
gpu.IncrementSyncPoint(value);
return;
}
fence_manager.SignalSyncPoint(value);
}
void RasterizerOpenGL::SignalReference() {
if (!gpu.IsAsync()) {
return;
}
fence_manager.SignalOrdering();
}
void RasterizerOpenGL::ReleaseFences() {
if (!gpu.IsAsync()) {
return;
}
fence_manager.WaitPendingFences();
}
void RasterizerOpenGL::FlushAndInvalidateRegion(VAddr addr, u64 size) {
if (Settings::IsGPULevelExtreme()) {
FlushRegion(addr, size);
}
InvalidateRegion(addr, size);
}
void RasterizerOpenGL::WaitForIdle() {
glMemoryBarrier(GL_ALL_BARRIER_BITS);
SignalReference();
}
void RasterizerOpenGL::FragmentBarrier() {
glMemoryBarrier(GL_FRAMEBUFFER_BARRIER_BIT);
}
void RasterizerOpenGL::TiledCacheBarrier() {
glTextureBarrier();
}
void RasterizerOpenGL::FlushCommands() {
// Only flush when we have commands queued to OpenGL.
if (num_queued_commands == 0) {
return;
}
num_queued_commands = 0;
// Make sure memory stored from the previous GL command stream is visible
// This is only needed on assembly shaders where we write to GPU memory with raw pointers
// TODO: Call this only when NV_shader_buffer_load or NV_shader_buffer_store have been used
// and prefer using NV_shader_storage_buffer_object when possible
if (Settings::values.use_assembly_shaders.GetValue()) {
glMemoryBarrier(GL_BUFFER_UPDATE_BARRIER_BIT);
}
glFlush();
}
void RasterizerOpenGL::TickFrame() {
// Ticking a frame means that buffers will be swapped, calling glFlush implicitly.
num_queued_commands = 0;
fence_manager.TickFrame();
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.TickFrame();
}
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.TickFrame();
}
}
bool RasterizerOpenGL::AccelerateSurfaceCopy(const Tegra::Engines::Fermi2D::Surface& src,
const Tegra::Engines::Fermi2D::Surface& dst,
const Tegra::Engines::Fermi2D::Config& copy_config) {
MICROPROFILE_SCOPE(OpenGL_Blits);
std::scoped_lock lock{texture_cache.mutex};
texture_cache.BlitImage(dst, src, copy_config);
return true;
}
Tegra::Engines::AccelerateDMAInterface& RasterizerOpenGL::AccessAccelerateDMA() {
return accelerate_dma;
}
bool RasterizerOpenGL::AccelerateDisplay(const Tegra::FramebufferConfig& config,
VAddr framebuffer_addr, u32 pixel_stride) {
if (framebuffer_addr == 0) {
return false;
}
MICROPROFILE_SCOPE(OpenGL_CacheManagement);
std::scoped_lock lock{texture_cache.mutex};
ImageView* const image_view{texture_cache.TryFindFramebufferImageView(framebuffer_addr)};
if (!image_view) {
return false;
}
// Verify that the cached surface is the same size and format as the requested framebuffer
// ASSERT_MSG(image_view->size.width == config.width, "Framebuffer width is different");
// ASSERT_MSG(image_view->size.height == config.height, "Framebuffer height is different");
screen_info.display_texture = image_view->Handle(Shader::TextureType::Color2D);
screen_info.display_srgb = VideoCore::Surface::IsPixelFormatSRGB(image_view->format);
return true;
}
void RasterizerOpenGL::SyncState() {
SyncViewport();
SyncRasterizeEnable();
SyncPolygonModes();
SyncColorMask();
SyncFragmentColorClampState();
SyncMultiSampleState();
SyncDepthTestState();
SyncDepthClamp();
SyncStencilTestState();
SyncBlendState();
SyncLogicOpState();
SyncCullMode();
SyncPrimitiveRestart();
SyncScissorTest();
SyncPointState();
SyncLineState();
SyncPolygonOffset();
SyncAlphaTest();
SyncFramebufferSRGB();
SyncVertexFormats();
SyncVertexInstances();
}
void RasterizerOpenGL::SyncViewport() {
auto& flags = maxwell3d.dirty.flags;
const auto& regs = maxwell3d.regs;
const bool dirty_viewport = flags[Dirty::Viewports];
const bool dirty_clip_control = flags[Dirty::ClipControl];
if (dirty_clip_control || flags[Dirty::FrontFace]) {
flags[Dirty::FrontFace] = false;
GLenum mode = MaxwellToGL::FrontFace(regs.front_face);
if (regs.screen_y_control.triangle_rast_flip != 0 &&
regs.viewport_transform[0].scale_y < 0.0f) {
switch (mode) {
case GL_CW:
mode = GL_CCW;
break;
case GL_CCW:
mode = GL_CW;
break;
}
}
glFrontFace(mode);
}
if (dirty_viewport || flags[Dirty::ClipControl]) {
flags[Dirty::ClipControl] = false;
bool flip_y = false;
if (regs.viewport_transform[0].scale_y < 0.0f) {
flip_y = !flip_y;
}
if (regs.screen_y_control.y_negate != 0) {
flip_y = !flip_y;
}
const bool is_zero_to_one = regs.depth_mode == Maxwell::DepthMode::ZeroToOne;
const GLenum origin = flip_y ? GL_UPPER_LEFT : GL_LOWER_LEFT;
const GLenum depth = is_zero_to_one ? GL_ZERO_TO_ONE : GL_NEGATIVE_ONE_TO_ONE;
state_tracker.ClipControl(origin, depth);
state_tracker.SetYNegate(regs.screen_y_control.y_negate != 0);
}
if (dirty_viewport) {
flags[Dirty::Viewports] = false;
const bool force = flags[Dirty::ViewportTransform];
flags[Dirty::ViewportTransform] = false;
for (std::size_t i = 0; i < Maxwell::NumViewports; ++i) {
if (!force && !flags[Dirty::Viewport0 + i]) {
continue;
}
flags[Dirty::Viewport0 + i] = false;
const auto& src = regs.viewport_transform[i];
const Common::Rectangle<f32> rect{src.GetRect()};
glViewportIndexedf(static_cast<GLuint>(i), rect.left, rect.bottom, rect.GetWidth(),
rect.GetHeight());
const GLdouble reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne;
const GLdouble near_depth = src.translate_z - src.scale_z * reduce_z;
const GLdouble far_depth = src.translate_z + src.scale_z;
if (device.HasDepthBufferFloat()) {
glDepthRangeIndexeddNV(static_cast<GLuint>(i), near_depth, far_depth);
} else {
glDepthRangeIndexed(static_cast<GLuint>(i), near_depth, far_depth);
}
if (!GLAD_GL_NV_viewport_swizzle) {
continue;
}
glViewportSwizzleNV(static_cast<GLuint>(i), MaxwellToGL::ViewportSwizzle(src.swizzle.x),
MaxwellToGL::ViewportSwizzle(src.swizzle.y),
MaxwellToGL::ViewportSwizzle(src.swizzle.z),
MaxwellToGL::ViewportSwizzle(src.swizzle.w));
}
}
}
void RasterizerOpenGL::SyncDepthClamp() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::DepthClampEnabled]) {
return;
}
flags[Dirty::DepthClampEnabled] = false;
oglEnable(GL_DEPTH_CLAMP, maxwell3d.regs.view_volume_clip_control.depth_clamp_disabled == 0);
}
void RasterizerOpenGL::SyncClipEnabled(u32 clip_mask) {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::ClipDistances] && !flags[VideoCommon::Dirty::Shaders]) {
return;
}
flags[Dirty::ClipDistances] = false;
clip_mask &= maxwell3d.regs.clip_distance_enabled;
if (clip_mask == last_clip_distance_mask) {
return;
}
last_clip_distance_mask = clip_mask;
for (std::size_t i = 0; i < Maxwell::Regs::NumClipDistances; ++i) {
oglEnable(static_cast<GLenum>(GL_CLIP_DISTANCE0 + i), (clip_mask >> i) & 1);
}
}
void RasterizerOpenGL::SyncClipCoef() {
UNIMPLEMENTED();
}
void RasterizerOpenGL::SyncCullMode() {
auto& flags = maxwell3d.dirty.flags;
const auto& regs = maxwell3d.regs;
if (flags[Dirty::CullTest]) {
flags[Dirty::CullTest] = false;
if (regs.cull_test_enabled) {
glEnable(GL_CULL_FACE);
glCullFace(MaxwellToGL::CullFace(regs.cull_face));
} else {
glDisable(GL_CULL_FACE);
}
}
}
void RasterizerOpenGL::SyncPrimitiveRestart() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::PrimitiveRestart]) {
return;
}
flags[Dirty::PrimitiveRestart] = false;
if (maxwell3d.regs.primitive_restart.enabled) {
glEnable(GL_PRIMITIVE_RESTART);
glPrimitiveRestartIndex(maxwell3d.regs.primitive_restart.index);
} else {
glDisable(GL_PRIMITIVE_RESTART);
}
}
void RasterizerOpenGL::SyncDepthTestState() {
auto& flags = maxwell3d.dirty.flags;
const auto& regs = maxwell3d.regs;
if (flags[Dirty::DepthMask]) {
flags[Dirty::DepthMask] = false;
glDepthMask(regs.depth_write_enabled ? GL_TRUE : GL_FALSE);
}
if (flags[Dirty::DepthTest]) {
flags[Dirty::DepthTest] = false;
if (regs.depth_test_enable) {
glEnable(GL_DEPTH_TEST);
glDepthFunc(MaxwellToGL::ComparisonOp(regs.depth_test_func));
} else {
glDisable(GL_DEPTH_TEST);
}
}
}
void RasterizerOpenGL::SyncStencilTestState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::StencilTest]) {
return;
}
flags[Dirty::StencilTest] = false;
const auto& regs = maxwell3d.regs;
oglEnable(GL_STENCIL_TEST, regs.stencil_enable);
glStencilFuncSeparate(GL_FRONT, MaxwellToGL::ComparisonOp(regs.stencil_front_func_func),
regs.stencil_front_func_ref, regs.stencil_front_func_mask);
glStencilOpSeparate(GL_FRONT, MaxwellToGL::StencilOp(regs.stencil_front_op_fail),
MaxwellToGL::StencilOp(regs.stencil_front_op_zfail),
MaxwellToGL::StencilOp(regs.stencil_front_op_zpass));
glStencilMaskSeparate(GL_FRONT, regs.stencil_front_mask);
if (regs.stencil_two_side_enable) {
glStencilFuncSeparate(GL_BACK, MaxwellToGL::ComparisonOp(regs.stencil_back_func_func),
regs.stencil_back_func_ref, regs.stencil_back_func_mask);
glStencilOpSeparate(GL_BACK, MaxwellToGL::StencilOp(regs.stencil_back_op_fail),
MaxwellToGL::StencilOp(regs.stencil_back_op_zfail),
MaxwellToGL::StencilOp(regs.stencil_back_op_zpass));
glStencilMaskSeparate(GL_BACK, regs.stencil_back_mask);
} else {
glStencilFuncSeparate(GL_BACK, GL_ALWAYS, 0, 0xFFFFFFFF);
glStencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_KEEP);
glStencilMaskSeparate(GL_BACK, 0xFFFFFFFF);
}
}
void RasterizerOpenGL::SyncRasterizeEnable() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::RasterizeEnable]) {
return;
}
flags[Dirty::RasterizeEnable] = false;
oglEnable(GL_RASTERIZER_DISCARD, maxwell3d.regs.rasterize_enable == 0);
}
void RasterizerOpenGL::SyncPolygonModes() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::PolygonModes]) {
return;
}
flags[Dirty::PolygonModes] = false;
const auto& regs = maxwell3d.regs;
if (regs.fill_rectangle) {
if (!GLAD_GL_NV_fill_rectangle) {
LOG_ERROR(Render_OpenGL, "GL_NV_fill_rectangle used and not supported");
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
return;
}
flags[Dirty::PolygonModeFront] = true;
flags[Dirty::PolygonModeBack] = true;
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL_RECTANGLE_NV);
return;
}
if (regs.polygon_mode_front == regs.polygon_mode_back) {
flags[Dirty::PolygonModeFront] = false;
flags[Dirty::PolygonModeBack] = false;
glPolygonMode(GL_FRONT_AND_BACK, MaxwellToGL::PolygonMode(regs.polygon_mode_front));
return;
}
if (flags[Dirty::PolygonModeFront]) {
flags[Dirty::PolygonModeFront] = false;
glPolygonMode(GL_FRONT, MaxwellToGL::PolygonMode(regs.polygon_mode_front));
}
if (flags[Dirty::PolygonModeBack]) {
flags[Dirty::PolygonModeBack] = false;
glPolygonMode(GL_BACK, MaxwellToGL::PolygonMode(regs.polygon_mode_back));
}
}
void RasterizerOpenGL::SyncColorMask() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::ColorMasks]) {
return;
}
flags[Dirty::ColorMasks] = false;
const bool force = flags[Dirty::ColorMaskCommon];
flags[Dirty::ColorMaskCommon] = false;
const auto& regs = maxwell3d.regs;
if (regs.color_mask_common) {
if (!force && !flags[Dirty::ColorMask0]) {
return;
}
flags[Dirty::ColorMask0] = false;
auto& mask = regs.color_mask[0];
glColorMask(mask.R != 0, mask.B != 0, mask.G != 0, mask.A != 0);
return;
}
// Path without color_mask_common set
for (std::size_t i = 0; i < Maxwell::NumRenderTargets; ++i) {
if (!force && !flags[Dirty::ColorMask0 + i]) {
continue;
}
flags[Dirty::ColorMask0 + i] = false;
const auto& mask = regs.color_mask[i];
glColorMaski(static_cast<GLuint>(i), mask.R != 0, mask.G != 0, mask.B != 0, mask.A != 0);
}
}
void RasterizerOpenGL::SyncMultiSampleState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::MultisampleControl]) {
return;
}
flags[Dirty::MultisampleControl] = false;
const auto& regs = maxwell3d.regs;
oglEnable(GL_SAMPLE_ALPHA_TO_COVERAGE, regs.multisample_control.alpha_to_coverage);
oglEnable(GL_SAMPLE_ALPHA_TO_ONE, regs.multisample_control.alpha_to_one);
}
void RasterizerOpenGL::SyncFragmentColorClampState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::FragmentClampColor]) {
return;
}
flags[Dirty::FragmentClampColor] = false;
glClampColor(GL_CLAMP_FRAGMENT_COLOR, maxwell3d.regs.frag_color_clamp ? GL_TRUE : GL_FALSE);
}
void RasterizerOpenGL::SyncBlendState() {
auto& flags = maxwell3d.dirty.flags;
const auto& regs = maxwell3d.regs;
if (flags[Dirty::BlendColor]) {
flags[Dirty::BlendColor] = false;
glBlendColor(regs.blend_color.r, regs.blend_color.g, regs.blend_color.b,
regs.blend_color.a);
}
// TODO(Rodrigo): Revisit blending, there are several registers we are not reading
if (!flags[Dirty::BlendStates]) {
return;
}
flags[Dirty::BlendStates] = false;
if (!regs.independent_blend_enable) {
if (!regs.blend.enable[0]) {
glDisable(GL_BLEND);
return;
}
glEnable(GL_BLEND);
glBlendFuncSeparate(MaxwellToGL::BlendFunc(regs.blend.factor_source_rgb),
MaxwellToGL::BlendFunc(regs.blend.factor_dest_rgb),
MaxwellToGL::BlendFunc(regs.blend.factor_source_a),
MaxwellToGL::BlendFunc(regs.blend.factor_dest_a));
glBlendEquationSeparate(MaxwellToGL::BlendEquation(regs.blend.equation_rgb),
MaxwellToGL::BlendEquation(regs.blend.equation_a));
return;
}
const bool force = flags[Dirty::BlendIndependentEnabled];
flags[Dirty::BlendIndependentEnabled] = false;
for (std::size_t i = 0; i < Maxwell::NumRenderTargets; ++i) {
if (!force && !flags[Dirty::BlendState0 + i]) {
continue;
}
flags[Dirty::BlendState0 + i] = false;
if (!regs.blend.enable[i]) {
glDisablei(GL_BLEND, static_cast<GLuint>(i));
continue;
}
glEnablei(GL_BLEND, static_cast<GLuint>(i));
const auto& src = regs.independent_blend[i];
glBlendFuncSeparatei(static_cast<GLuint>(i), MaxwellToGL::BlendFunc(src.factor_source_rgb),
MaxwellToGL::BlendFunc(src.factor_dest_rgb),
MaxwellToGL::BlendFunc(src.factor_source_a),
MaxwellToGL::BlendFunc(src.factor_dest_a));
glBlendEquationSeparatei(static_cast<GLuint>(i),
MaxwellToGL::BlendEquation(src.equation_rgb),
MaxwellToGL::BlendEquation(src.equation_a));
}
}
void RasterizerOpenGL::SyncLogicOpState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::LogicOp]) {
return;
}
flags[Dirty::LogicOp] = false;
const auto& regs = maxwell3d.regs;
if (regs.logic_op.enable) {
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(MaxwellToGL::LogicOp(regs.logic_op.operation));
} else {
glDisable(GL_COLOR_LOGIC_OP);
}
}
void RasterizerOpenGL::SyncScissorTest() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::Scissors]) {
return;
}
flags[Dirty::Scissors] = false;
const auto& regs = maxwell3d.regs;
for (std::size_t index = 0; index < Maxwell::NumViewports; ++index) {
if (!flags[Dirty::Scissor0 + index]) {
continue;
}
flags[Dirty::Scissor0 + index] = false;
const auto& src = regs.scissor_test[index];
if (src.enable) {
glEnablei(GL_SCISSOR_TEST, static_cast<GLuint>(index));
glScissorIndexed(static_cast<GLuint>(index), src.min_x, src.min_y,
src.max_x - src.min_x, src.max_y - src.min_y);
} else {
glDisablei(GL_SCISSOR_TEST, static_cast<GLuint>(index));
}
}
}
void RasterizerOpenGL::SyncPointState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::PointSize]) {
return;
}
flags[Dirty::PointSize] = false;
oglEnable(GL_POINT_SPRITE, maxwell3d.regs.point_sprite_enable);
oglEnable(GL_PROGRAM_POINT_SIZE, maxwell3d.regs.vp_point_size.enable);
glPointSize(std::max(1.0f, maxwell3d.regs.point_size));
}
void RasterizerOpenGL::SyncLineState() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::LineWidth]) {
return;
}
flags[Dirty::LineWidth] = false;
const auto& regs = maxwell3d.regs;
oglEnable(GL_LINE_SMOOTH, regs.line_smooth_enable);
glLineWidth(regs.line_smooth_enable ? regs.line_width_smooth : regs.line_width_aliased);
}
void RasterizerOpenGL::SyncPolygonOffset() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::PolygonOffset]) {
return;
}
flags[Dirty::PolygonOffset] = false;
const auto& regs = maxwell3d.regs;
oglEnable(GL_POLYGON_OFFSET_FILL, regs.polygon_offset_fill_enable);
oglEnable(GL_POLYGON_OFFSET_LINE, regs.polygon_offset_line_enable);
oglEnable(GL_POLYGON_OFFSET_POINT, regs.polygon_offset_point_enable);
if (regs.polygon_offset_fill_enable || regs.polygon_offset_line_enable ||
regs.polygon_offset_point_enable) {
// Hardware divides polygon offset units by two
glPolygonOffsetClamp(regs.polygon_offset_factor, regs.polygon_offset_units / 2.0f,
regs.polygon_offset_clamp);
}
}
void RasterizerOpenGL::SyncAlphaTest() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::AlphaTest]) {
return;
}
flags[Dirty::AlphaTest] = false;
const auto& regs = maxwell3d.regs;
if (regs.alpha_test_enabled) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(MaxwellToGL::ComparisonOp(regs.alpha_test_func), regs.alpha_test_ref);
} else {
glDisable(GL_ALPHA_TEST);
}
}
void RasterizerOpenGL::SyncFramebufferSRGB() {
auto& flags = maxwell3d.dirty.flags;
if (!flags[Dirty::FramebufferSRGB]) {
return;
}
flags[Dirty::FramebufferSRGB] = false;
oglEnable(GL_FRAMEBUFFER_SRGB, maxwell3d.regs.framebuffer_srgb);
}
void RasterizerOpenGL::BeginTransformFeedback(GraphicsProgram* program, GLenum primitive_mode) {
const auto& regs = maxwell3d.regs;
if (regs.tfb_enabled == 0) {
return;
}
program->ConfigureTransformFeedback();
UNIMPLEMENTED_IF(regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationControl) ||
regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationEval) ||
regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::Geometry));
UNIMPLEMENTED_IF(primitive_mode != GL_POINTS);
// We may have to call BeginTransformFeedbackNV here since they seem to call different
// implementations on Nvidia's driver (the pointer is different) but we are using
// ARB_transform_feedback3 features with NV_transform_feedback interactions and the ARB
// extension doesn't define BeginTransformFeedback (without NV) interactions. It just works.
glBeginTransformFeedback(GL_POINTS);
}
void RasterizerOpenGL::EndTransformFeedback() {
if (maxwell3d.regs.tfb_enabled != 0) {
glEndTransformFeedback();
}
}
AccelerateDMA::AccelerateDMA(BufferCache& buffer_cache_) : buffer_cache{buffer_cache_} {}
bool AccelerateDMA::BufferCopy(GPUVAddr src_address, GPUVAddr dest_address, u64 amount) {
std::scoped_lock lock{buffer_cache.mutex};
return buffer_cache.DMACopy(src_address, dest_address, amount);
}
bool AccelerateDMA::BufferClear(GPUVAddr src_address, u64 amount, u32 value) {
std::scoped_lock lock{buffer_cache.mutex};
return buffer_cache.DMAClear(src_address, amount, value);
}
} // namespace OpenGL