// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <cstddef>
#include <type_traits>
#include "common/common_types.h"
#include "core/core.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/gpu.h"
#include "video_core/renderer_opengl/gl_state_tracker.h"
#define OFF(field_name) MAXWELL3D_REG_INDEX(field_name)
#define NUM(field_name) (sizeof(Maxwell3D::Regs::field_name) / sizeof(u32))
namespace OpenGL {
namespace {
using namespace Dirty;
using namespace VideoCommon::Dirty;
using Tegra::Engines::Maxwell3D;
using Regs = Maxwell3D::Regs;
using Dirty = std::remove_reference_t<decltype(Maxwell3D::dirty)>;
using Tables = std::remove_reference_t<decltype(Maxwell3D::dirty.tables)>;
using Table = std::remove_reference_t<decltype(Maxwell3D::dirty.tables[0])>;
template <typename Integer>
void FillBlock(Table& table, std::size_t begin, std::size_t num, Integer dirty_index) {
const auto it = std::begin(table) + begin;
std::fill(it, it + num, static_cast<u8>(dirty_index));
}
template <typename Integer1, typename Integer2>
void FillBlock(Tables& tables, std::size_t begin, std::size_t num, Integer1 index_a,
Integer2 index_b) {
FillBlock(tables[0], begin, num, index_a);
FillBlock(tables[1], begin, num, index_b);
}
void SetupDirtyRenderTargets(Tables& tables) {
static constexpr std::size_t num_per_rt = NUM(rt[0]);
static constexpr std::size_t begin = OFF(rt);
static constexpr std::size_t num = num_per_rt * Regs::NumRenderTargets;
for (std::size_t rt = 0; rt < Regs::NumRenderTargets; ++rt) {
FillBlock(tables[0], begin + rt * num_per_rt, num_per_rt, ColorBuffer0 + rt);
}
FillBlock(tables[1], begin, num, RenderTargets);
static constexpr std::array zeta_flags{ZetaBuffer, RenderTargets};
for (std::size_t i = 0; i < std::size(zeta_flags); ++i) {
const u8 flag = zeta_flags[i];
auto& table = tables[i];
table[OFF(zeta_enable)] = flag;
table[OFF(zeta_width)] = flag;
table[OFF(zeta_height)] = flag;
FillBlock(table, OFF(zeta), NUM(zeta), flag);
}
}
void SetupDirtyColorMasks(Tables& tables) {
tables[0][OFF(color_mask_common)] = ColorMaskCommon;
for (std::size_t rt = 0; rt < Regs::NumRenderTargets; ++rt) {
const std::size_t offset = OFF(color_mask) + rt * NUM(color_mask[0]);
FillBlock(tables[0], offset, NUM(color_mask[0]), ColorMask0 + rt);
}
FillBlock(tables[1], OFF(color_mask), NUM(color_mask), ColorMasks);
}
void SetupDirtyVertexArrays(Tables& tables) {
static constexpr std::size_t num_array = 3;
static constexpr std::size_t instance_base_offset = 3;
for (std::size_t i = 0; i < Regs::NumVertexArrays; ++i) {
const std::size_t array_offset = OFF(vertex_array) + i * NUM(vertex_array[0]);
const std::size_t limit_offset = OFF(vertex_array_limit) + i * NUM(vertex_array_limit[0]);
FillBlock(tables, array_offset, num_array, VertexBuffer0 + i, VertexBuffers);
FillBlock(tables, limit_offset, NUM(vertex_array_limit), VertexBuffer0 + i, VertexBuffers);
const std::size_t instance_array_offset = array_offset + instance_base_offset;
tables[0][instance_array_offset] = static_cast<u8>(VertexInstance0 + i);
tables[1][instance_array_offset] = VertexInstances;
const std::size_t instance_offset = OFF(instanced_arrays) + i;
tables[0][instance_offset] = static_cast<u8>(VertexInstance0 + i);
tables[1][instance_offset] = VertexInstances;
}
}
void SetupDirtyVertexFormat(Tables& tables) {
for (std::size_t i = 0; i < Regs::NumVertexAttributes; ++i) {
const std::size_t offset = OFF(vertex_attrib_format) + i * NUM(vertex_attrib_format[0]);
FillBlock(tables[0], offset, NUM(vertex_attrib_format[0]), VertexFormat0 + i);
}
FillBlock(tables[1], OFF(vertex_attrib_format), Regs::NumVertexAttributes, VertexFormats);
}
void SetupDirtyViewports(Tables& tables) {
for (std::size_t i = 0; i < Regs::NumViewports; ++i) {
const std::size_t transf_offset = OFF(viewport_transform) + i * NUM(viewport_transform[0]);
const std::size_t viewport_offset = OFF(viewports) + i * NUM(viewports[0]);
FillBlock(tables[0], transf_offset, NUM(viewport_transform[0]), Viewport0 + i);
FillBlock(tables[0], viewport_offset, NUM(viewports[0]), Viewport0 + i);
}
FillBlock(tables[1], OFF(viewport_transform), NUM(viewport_transform), Viewports);
FillBlock(tables[1], OFF(viewports), NUM(viewports), Viewports);
tables[0][OFF(viewport_transform_enabled)] = ViewportTransform;
tables[1][OFF(viewport_transform_enabled)] = Viewports;
}
void SetupDirtyScissors(Tables& tables) {
for (std::size_t i = 0; i < Regs::NumViewports; ++i) {
const std::size_t offset = OFF(scissor_test) + i * NUM(scissor_test[0]);
FillBlock(tables[0], offset, NUM(scissor_test[0]), Scissor0 + i);
}
FillBlock(tables[1], OFF(scissor_test), NUM(scissor_test), Scissors);
}
void SetupDirtyShaders(Tables& tables) {
FillBlock(tables[0], OFF(shader_config[0]), NUM(shader_config[0]) * Regs::MaxShaderProgram,
Shaders);
}
void SetupDirtyDepthTest(Tables& tables) {
auto& table = tables[0];
table[OFF(depth_test_enable)] = DepthTest;
table[OFF(depth_write_enabled)] = DepthMask;
table[OFF(depth_test_func)] = DepthTest;
}
void SetupDirtyStencilTest(Tables& tables) {
static constexpr std::array offsets = {
OFF(stencil_enable), OFF(stencil_front_func_func), OFF(stencil_front_func_ref),
OFF(stencil_front_func_mask), OFF(stencil_front_op_fail), OFF(stencil_front_op_zfail),
OFF(stencil_front_op_zpass), OFF(stencil_front_mask), OFF(stencil_two_side_enable),
OFF(stencil_back_func_func), OFF(stencil_back_func_ref), OFF(stencil_back_func_mask),
OFF(stencil_back_op_fail), OFF(stencil_back_op_zfail), OFF(stencil_back_op_zpass),
OFF(stencil_back_mask)};
for (const auto offset : offsets) {
tables[0][offset] = StencilTest;
}
}
void SetupDirtyAlphaTest(Tables& tables) {
auto& table = tables[0];
table[OFF(alpha_test_ref)] = AlphaTest;
table[OFF(alpha_test_func)] = AlphaTest;
table[OFF(alpha_test_enabled)] = AlphaTest;
}
void SetupDirtyBlend(Tables& tables) {
FillBlock(tables[0], OFF(blend_color), NUM(blend_color), BlendColor);
tables[0][OFF(independent_blend_enable)] = BlendIndependentEnabled;
for (std::size_t i = 0; i < Regs::NumRenderTargets; ++i) {
const std::size_t offset = OFF(independent_blend) + i * NUM(independent_blend[0]);
FillBlock(tables[0], offset, NUM(independent_blend[0]), BlendState0 + i);
tables[0][OFF(blend.enable) + i] = static_cast<u8>(BlendState0 + i);
}
FillBlock(tables[1], OFF(independent_blend), NUM(independent_blend), BlendStates);
FillBlock(tables[1], OFF(blend), NUM(blend), BlendStates);
}
void SetupDirtyPrimitiveRestart(Tables& tables) {
FillBlock(tables[0], OFF(primitive_restart), NUM(primitive_restart), PrimitiveRestart);
}
void SetupDirtyPolygonOffset(Tables& tables) {
auto& table = tables[0];
table[OFF(polygon_offset_fill_enable)] = PolygonOffset;
table[OFF(polygon_offset_line_enable)] = PolygonOffset;
table[OFF(polygon_offset_point_enable)] = PolygonOffset;
table[OFF(polygon_offset_factor)] = PolygonOffset;
table[OFF(polygon_offset_units)] = PolygonOffset;
table[OFF(polygon_offset_clamp)] = PolygonOffset;
}
void SetupDirtyMultisampleControl(Tables& tables) {
FillBlock(tables[0], OFF(multisample_control), NUM(multisample_control), MultisampleControl);
}
void SetupDirtyRasterizeEnable(Tables& tables) {
tables[0][OFF(rasterize_enable)] = RasterizeEnable;
}
void SetupDirtyMisc(Tables& tables) {
auto& table = tables[0];
table[OFF(clip_distance_enabled)] = ClipDistances;
table[OFF(front_face)] = FrontFace;
table[OFF(cull_test_enabled)] = CullTest;
table[OFF(cull_face)] = CullTest;
}
} // Anonymous namespace
StateTracker::StateTracker(Core::System& system) : system{system} {}
void StateTracker::Initialize() {
auto& dirty = system.GPU().Maxwell3D().dirty;
auto& tables = dirty.tables;
SetupDirtyRenderTargets(tables);
SetupDirtyColorMasks(tables);
SetupDirtyViewports(tables);
SetupDirtyScissors(tables);
SetupDirtyVertexArrays(tables);
SetupDirtyVertexFormat(tables);
SetupDirtyShaders(tables);
SetupDirtyDepthTest(tables);
SetupDirtyStencilTest(tables);
SetupDirtyAlphaTest(tables);
SetupDirtyBlend(tables);
SetupDirtyPrimitiveRestart(tables);
SetupDirtyPolygonOffset(tables);
SetupDirtyMultisampleControl(tables);
SetupDirtyRasterizeEnable(tables);
SetupDirtyMisc(tables);
auto& store = dirty.on_write_stores;
store[RenderTargets] = true;
store[ZetaBuffer] = true;
for (std::size_t i = 0; i < Regs::NumRenderTargets; ++i) {
store[ColorBuffer0 + i] = true;
}
store[VertexBuffers] = true;
for (std::size_t i = 0; i < Regs::NumVertexArrays; ++i) {
store[VertexBuffer0 + i] = true;
}
}
} // namespace OpenGL