757 lines
28 KiB
C++
757 lines
28 KiB
C++
// Copyright 2018 yuzu Emulator Project
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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 <cinttypes>
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#include <cstring>
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#include <optional>
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#include "common/assert.h"
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#include "core/core.h"
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#include "core/core_timing.h"
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/engines/shader_type.h"
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#include "video_core/gpu.h"
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#include "video_core/memory_manager.h"
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#include "video_core/rasterizer_interface.h"
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#include "video_core/textures/texture.h"
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namespace Tegra::Engines {
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using VideoCore::QueryType;
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/// First register id that is actually a Macro call.
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constexpr u32 MacroRegistersStart = 0xE00;
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Maxwell3D::Maxwell3D(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
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MemoryManager& memory_manager)
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: system{system}, rasterizer{rasterizer}, memory_manager{memory_manager},
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macro_interpreter{*this}, upload_state{memory_manager, regs.upload} {
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dirty.flags.flip();
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InitializeRegisterDefaults();
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}
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void Maxwell3D::InitializeRegisterDefaults() {
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// Initializes registers to their default values - what games expect them to be at boot. This is
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// for certain registers that may not be explicitly set by games.
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// Reset all registers to zero
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std::memset(®s, 0, sizeof(regs));
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// Depth range near/far is not always set, but is expected to be the default 0.0f, 1.0f. This is
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// needed for ARMS.
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for (auto& viewport : regs.viewports) {
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viewport.depth_range_near = 0.0f;
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viewport.depth_range_far = 1.0f;
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}
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for (auto& viewport : regs.viewport_transform) {
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viewport.swizzle.x.Assign(Regs::ViewportSwizzle::PositiveX);
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viewport.swizzle.y.Assign(Regs::ViewportSwizzle::PositiveY);
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viewport.swizzle.z.Assign(Regs::ViewportSwizzle::PositiveZ);
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viewport.swizzle.w.Assign(Regs::ViewportSwizzle::PositiveW);
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}
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// Doom and Bomberman seems to use the uninitialized registers and just enable blend
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// so initialize blend registers with sane values
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regs.blend.equation_rgb = Regs::Blend::Equation::Add;
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regs.blend.factor_source_rgb = Regs::Blend::Factor::One;
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regs.blend.factor_dest_rgb = Regs::Blend::Factor::Zero;
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regs.blend.equation_a = Regs::Blend::Equation::Add;
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regs.blend.factor_source_a = Regs::Blend::Factor::One;
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regs.blend.factor_dest_a = Regs::Blend::Factor::Zero;
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for (auto& blend : regs.independent_blend) {
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blend.equation_rgb = Regs::Blend::Equation::Add;
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blend.factor_source_rgb = Regs::Blend::Factor::One;
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blend.factor_dest_rgb = Regs::Blend::Factor::Zero;
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blend.equation_a = Regs::Blend::Equation::Add;
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blend.factor_source_a = Regs::Blend::Factor::One;
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blend.factor_dest_a = Regs::Blend::Factor::Zero;
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}
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regs.stencil_front_op_fail = Regs::StencilOp::Keep;
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regs.stencil_front_op_zfail = Regs::StencilOp::Keep;
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regs.stencil_front_op_zpass = Regs::StencilOp::Keep;
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regs.stencil_front_func_func = Regs::ComparisonOp::Always;
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regs.stencil_front_func_mask = 0xFFFFFFFF;
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regs.stencil_front_mask = 0xFFFFFFFF;
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regs.stencil_two_side_enable = 1;
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regs.stencil_back_op_fail = Regs::StencilOp::Keep;
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regs.stencil_back_op_zfail = Regs::StencilOp::Keep;
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regs.stencil_back_op_zpass = Regs::StencilOp::Keep;
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regs.stencil_back_func_func = Regs::ComparisonOp::Always;
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regs.stencil_back_func_mask = 0xFFFFFFFF;
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regs.stencil_back_mask = 0xFFFFFFFF;
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regs.depth_test_func = Regs::ComparisonOp::Always;
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regs.front_face = Regs::FrontFace::CounterClockWise;
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regs.cull_face = Regs::CullFace::Back;
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// TODO(Rodrigo): Most games do not set a point size. I think this is a case of a
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// register carrying a default value. Assume it's OpenGL's default (1).
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regs.point_size = 1.0f;
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// TODO(bunnei): Some games do not initialize the color masks (e.g. Sonic Mania). Assuming a
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// default of enabled fixes rendering here.
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for (auto& color_mask : regs.color_mask) {
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color_mask.R.Assign(1);
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color_mask.G.Assign(1);
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color_mask.B.Assign(1);
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color_mask.A.Assign(1);
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}
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for (auto& format : regs.vertex_attrib_format) {
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format.constant.Assign(1);
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}
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// NVN games expect these values to be enabled at boot
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regs.rasterize_enable = 1;
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regs.rt_separate_frag_data = 1;
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regs.framebuffer_srgb = 1;
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regs.front_face = Maxwell3D::Regs::FrontFace::ClockWise;
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shadow_state = regs;
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mme_inline[MAXWELL3D_REG_INDEX(draw.vertex_end_gl)] = true;
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mme_inline[MAXWELL3D_REG_INDEX(draw.vertex_begin_gl)] = true;
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mme_inline[MAXWELL3D_REG_INDEX(vertex_buffer.count)] = true;
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mme_inline[MAXWELL3D_REG_INDEX(index_array.count)] = true;
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}
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void Maxwell3D::CallMacroMethod(u32 method, std::size_t num_parameters, const u32* parameters) {
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// Reset the current macro.
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executing_macro = 0;
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// Lookup the macro offset
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const u32 entry =
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((method - MacroRegistersStart) >> 1) % static_cast<u32>(macro_positions.size());
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// Execute the current macro.
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macro_interpreter.Execute(macro_positions[entry], num_parameters, parameters);
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if (mme_draw.current_mode != MMEDrawMode::Undefined) {
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FlushMMEInlineDraw();
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}
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}
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void Maxwell3D::CallMethod(u32 method, u32 method_argument, bool is_last_call) {
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if (method == cb_data_state.current) {
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regs.reg_array[method] = method_argument;
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ProcessCBData(method_argument);
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return;
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} else if (cb_data_state.current != null_cb_data) {
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FinishCBData();
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}
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// It is an error to write to a register other than the current macro's ARG register before it
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// has finished execution.
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if (executing_macro != 0) {
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ASSERT(method == executing_macro + 1);
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}
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// Methods after 0xE00 are special, they're actually triggers for some microcode that was
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// uploaded to the GPU during initialization.
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if (method >= MacroRegistersStart) {
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// We're trying to execute a macro
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if (executing_macro == 0) {
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// A macro call must begin by writing the macro method's register, not its argument.
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ASSERT_MSG((method % 2) == 0,
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"Can't start macro execution by writing to the ARGS register");
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executing_macro = method;
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}
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macro_params.push_back(method_argument);
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// Call the macro when there are no more parameters in the command buffer
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if (is_last_call) {
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CallMacroMethod(executing_macro, macro_params.size(), macro_params.data());
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macro_params.clear();
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}
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return;
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}
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ASSERT_MSG(method < Regs::NUM_REGS,
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"Invalid Maxwell3D register, increase the size of the Regs structure");
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u32 arg = method_argument;
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// Keep track of the register value in shadow_state when requested.
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if (shadow_state.shadow_ram_control == Regs::ShadowRamControl::Track ||
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shadow_state.shadow_ram_control == Regs::ShadowRamControl::TrackWithFilter) {
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shadow_state.reg_array[method] = arg;
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} else if (shadow_state.shadow_ram_control == Regs::ShadowRamControl::Replay) {
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arg = shadow_state.reg_array[method];
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}
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if (regs.reg_array[method] != arg) {
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regs.reg_array[method] = arg;
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for (const auto& table : dirty.tables) {
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dirty.flags[table[method]] = true;
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}
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}
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switch (method) {
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case MAXWELL3D_REG_INDEX(wait_for_idle): {
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rasterizer.WaitForIdle();
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break;
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}
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case MAXWELL3D_REG_INDEX(shadow_ram_control): {
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shadow_state.shadow_ram_control = static_cast<Regs::ShadowRamControl>(method_argument);
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break;
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}
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case MAXWELL3D_REG_INDEX(macros.data): {
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ProcessMacroUpload(arg);
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break;
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}
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case MAXWELL3D_REG_INDEX(macros.bind): {
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ProcessMacroBind(arg);
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break;
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}
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case MAXWELL3D_REG_INDEX(firmware[4]): {
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ProcessFirmwareCall4();
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break;
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}
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[0]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[1]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[2]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[3]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[4]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[5]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[6]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[7]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[8]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[9]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[10]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[11]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[12]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[13]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[14]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[15]): {
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StartCBData(method);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[0]): {
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ProcessCBBind(0);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[1]): {
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ProcessCBBind(1);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[2]): {
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ProcessCBBind(2);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[3]): {
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ProcessCBBind(3);
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break;
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}
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case MAXWELL3D_REG_INDEX(cb_bind[4]): {
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ProcessCBBind(4);
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break;
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}
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case MAXWELL3D_REG_INDEX(draw.vertex_end_gl): {
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DrawArrays();
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break;
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}
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case MAXWELL3D_REG_INDEX(clear_buffers): {
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ProcessClearBuffers();
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break;
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}
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case MAXWELL3D_REG_INDEX(query.query_get): {
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ProcessQueryGet();
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break;
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}
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case MAXWELL3D_REG_INDEX(condition.mode): {
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ProcessQueryCondition();
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break;
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}
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case MAXWELL3D_REG_INDEX(counter_reset): {
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ProcessCounterReset();
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break;
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}
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case MAXWELL3D_REG_INDEX(sync_info): {
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ProcessSyncPoint();
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break;
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}
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case MAXWELL3D_REG_INDEX(exec_upload): {
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upload_state.ProcessExec(regs.exec_upload.linear != 0);
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break;
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}
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case MAXWELL3D_REG_INDEX(data_upload): {
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upload_state.ProcessData(arg, is_last_call);
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if (is_last_call) {
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OnMemoryWrite();
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}
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break;
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}
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default:
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break;
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}
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}
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void Maxwell3D::CallMultiMethod(u32 method, const u32* base_start, u32 amount,
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u32 methods_pending) {
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// Methods after 0xE00 are special, they're actually triggers for some microcode that was
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// uploaded to the GPU during initialization.
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if (method >= MacroRegistersStart) {
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// We're trying to execute a macro
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if (executing_macro == 0) {
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// A macro call must begin by writing the macro method's register, not its argument.
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ASSERT_MSG((method % 2) == 0,
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"Can't start macro execution by writing to the ARGS register");
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executing_macro = method;
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}
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for (std::size_t i = 0; i < amount; i++) {
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macro_params.push_back(base_start[i]);
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}
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// Call the macro when there are no more parameters in the command buffer
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if (amount == methods_pending) {
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CallMacroMethod(executing_macro, macro_params.size(), macro_params.data());
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macro_params.clear();
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}
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return;
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}
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switch (method) {
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[0]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[1]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[2]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[3]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[4]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[5]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[6]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[7]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[8]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[9]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[10]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[11]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[12]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[13]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[14]):
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case MAXWELL3D_REG_INDEX(const_buffer.cb_data[15]): {
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ProcessCBMultiData(method, base_start, amount);
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break;
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}
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default: {
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for (std::size_t i = 0; i < amount; i++) {
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CallMethod(method, base_start[i], methods_pending - static_cast<u32>(i) <= 1);
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}
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}
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}
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}
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void Maxwell3D::StepInstance(const MMEDrawMode expected_mode, const u32 count) {
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if (mme_draw.current_mode == MMEDrawMode::Undefined) {
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if (mme_draw.gl_begin_consume) {
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mme_draw.current_mode = expected_mode;
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mme_draw.current_count = count;
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mme_draw.instance_count = 1;
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mme_draw.gl_begin_consume = false;
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mme_draw.gl_end_count = 0;
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}
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return;
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} else {
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if (mme_draw.current_mode == expected_mode && count == mme_draw.current_count &&
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mme_draw.instance_mode && mme_draw.gl_begin_consume) {
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mme_draw.instance_count++;
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mme_draw.gl_begin_consume = false;
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return;
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} else {
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FlushMMEInlineDraw();
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}
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}
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// Tail call in case it needs to retry.
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StepInstance(expected_mode, count);
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}
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void Maxwell3D::CallMethodFromMME(u32 method, u32 method_argument) {
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if (mme_inline[method]) {
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regs.reg_array[method] = method_argument;
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if (method == MAXWELL3D_REG_INDEX(vertex_buffer.count) ||
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method == MAXWELL3D_REG_INDEX(index_array.count)) {
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const MMEDrawMode expected_mode = method == MAXWELL3D_REG_INDEX(vertex_buffer.count)
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? MMEDrawMode::Array
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: MMEDrawMode::Indexed;
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StepInstance(expected_mode, method_argument);
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} else if (method == MAXWELL3D_REG_INDEX(draw.vertex_begin_gl)) {
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mme_draw.instance_mode =
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(regs.draw.instance_next != 0) || (regs.draw.instance_cont != 0);
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mme_draw.gl_begin_consume = true;
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} else {
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mme_draw.gl_end_count++;
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}
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} else {
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if (mme_draw.current_mode != MMEDrawMode::Undefined) {
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FlushMMEInlineDraw();
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}
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CallMethod(method, method_argument, true);
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}
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}
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void Maxwell3D::FlushMMEInlineDraw() {
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LOG_TRACE(HW_GPU, "called, topology={}, count={}", static_cast<u32>(regs.draw.topology.Value()),
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regs.vertex_buffer.count);
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ASSERT_MSG(!(regs.index_array.count && regs.vertex_buffer.count), "Both indexed and direct?");
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ASSERT(mme_draw.instance_count == mme_draw.gl_end_count);
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// Both instance configuration registers can not be set at the same time.
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ASSERT_MSG(!regs.draw.instance_next || !regs.draw.instance_cont,
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"Illegal combination of instancing parameters");
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const bool is_indexed = mme_draw.current_mode == MMEDrawMode::Indexed;
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if (ShouldExecute()) {
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rasterizer.Draw(is_indexed, true);
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}
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// TODO(bunnei): Below, we reset vertex count so that we can use these registers to determine if
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// the game is trying to draw indexed or direct mode. This needs to be verified on HW still -
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// it's possible that it is incorrect and that there is some other register used to specify the
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// drawing mode.
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if (is_indexed) {
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regs.index_array.count = 0;
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} else {
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regs.vertex_buffer.count = 0;
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}
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mme_draw.current_mode = MMEDrawMode::Undefined;
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mme_draw.current_count = 0;
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mme_draw.instance_count = 0;
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mme_draw.instance_mode = false;
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mme_draw.gl_begin_consume = false;
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mme_draw.gl_end_count = 0;
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}
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void Maxwell3D::ProcessMacroUpload(u32 data) {
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ASSERT_MSG(regs.macros.upload_address < macro_memory.size(),
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"upload_address exceeded macro_memory size!");
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macro_memory[regs.macros.upload_address++] = data;
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}
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void Maxwell3D::ProcessMacroBind(u32 data) {
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macro_positions[regs.macros.entry++] = data;
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}
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void Maxwell3D::ProcessFirmwareCall4() {
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LOG_WARNING(HW_GPU, "(STUBBED) called");
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// Firmware call 4 is a blob that changes some registers depending on its parameters.
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// These registers don't affect emulation and so are stubbed by setting 0xd00 to 1.
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regs.reg_array[0xd00] = 1;
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}
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void Maxwell3D::StampQueryResult(u64 payload, bool long_query) {
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struct LongQueryResult {
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u64_le value;
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u64_le timestamp;
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};
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static_assert(sizeof(LongQueryResult) == 16, "LongQueryResult has wrong size");
|
|
const GPUVAddr sequence_address{regs.query.QueryAddress()};
|
|
if (long_query) {
|
|
// Write the 128-bit result structure in long mode. Note: We emulate an infinitely fast
|
|
// GPU, this command may actually take a while to complete in real hardware due to GPU
|
|
// wait queues.
|
|
LongQueryResult query_result{payload, system.GPU().GetTicks()};
|
|
memory_manager.WriteBlock(sequence_address, &query_result, sizeof(query_result));
|
|
} else {
|
|
memory_manager.Write<u32>(sequence_address, static_cast<u32>(payload));
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::ProcessQueryGet() {
|
|
// TODO(Subv): Support the other query units.
|
|
ASSERT_MSG(regs.query.query_get.unit == Regs::QueryUnit::Crop,
|
|
"Units other than CROP are unimplemented");
|
|
|
|
switch (regs.query.query_get.operation) {
|
|
case Regs::QueryOperation::Release:
|
|
if (regs.query.query_get.fence == 1) {
|
|
rasterizer.SignalSemaphore(regs.query.QueryAddress(), regs.query.query_sequence);
|
|
} else {
|
|
StampQueryResult(regs.query.query_sequence, regs.query.query_get.short_query == 0);
|
|
}
|
|
break;
|
|
case Regs::QueryOperation::Acquire:
|
|
// TODO(Blinkhawk): Under this operation, the GPU waits for the CPU to write a value that
|
|
// matches the current payload.
|
|
UNIMPLEMENTED_MSG("Unimplemented query operation ACQUIRE");
|
|
break;
|
|
case Regs::QueryOperation::Counter:
|
|
if (const std::optional<u64> result = GetQueryResult()) {
|
|
// If the query returns an empty optional it means it's cached and deferred.
|
|
// In this case we have a non-empty result, so we stamp it immediately.
|
|
StampQueryResult(*result, regs.query.query_get.short_query == 0);
|
|
}
|
|
break;
|
|
case Regs::QueryOperation::Trap:
|
|
UNIMPLEMENTED_MSG("Unimplemented query operation TRAP");
|
|
break;
|
|
default:
|
|
UNIMPLEMENTED_MSG("Unknown query operation");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::ProcessQueryCondition() {
|
|
const GPUVAddr condition_address{regs.condition.Address()};
|
|
switch (regs.condition.mode) {
|
|
case Regs::ConditionMode::Always: {
|
|
execute_on = true;
|
|
break;
|
|
}
|
|
case Regs::ConditionMode::Never: {
|
|
execute_on = false;
|
|
break;
|
|
}
|
|
case Regs::ConditionMode::ResNonZero: {
|
|
Regs::QueryCompare cmp;
|
|
memory_manager.ReadBlock(condition_address, &cmp, sizeof(cmp));
|
|
execute_on = cmp.initial_sequence != 0U && cmp.initial_mode != 0U;
|
|
break;
|
|
}
|
|
case Regs::ConditionMode::Equal: {
|
|
Regs::QueryCompare cmp;
|
|
memory_manager.ReadBlock(condition_address, &cmp, sizeof(cmp));
|
|
execute_on =
|
|
cmp.initial_sequence == cmp.current_sequence && cmp.initial_mode == cmp.current_mode;
|
|
break;
|
|
}
|
|
case Regs::ConditionMode::NotEqual: {
|
|
Regs::QueryCompare cmp;
|
|
memory_manager.ReadBlock(condition_address, &cmp, sizeof(cmp));
|
|
execute_on =
|
|
cmp.initial_sequence != cmp.current_sequence || cmp.initial_mode != cmp.current_mode;
|
|
break;
|
|
}
|
|
default: {
|
|
UNIMPLEMENTED_MSG("Uninplemented Condition Mode!");
|
|
execute_on = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::ProcessCounterReset() {
|
|
switch (regs.counter_reset) {
|
|
case Regs::CounterReset::SampleCnt:
|
|
rasterizer.ResetCounter(QueryType::SamplesPassed);
|
|
break;
|
|
default:
|
|
LOG_WARNING(Render_OpenGL, "Unimplemented counter reset={}",
|
|
static_cast<int>(regs.counter_reset));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::ProcessSyncPoint() {
|
|
const u32 sync_point = regs.sync_info.sync_point.Value();
|
|
const u32 increment = regs.sync_info.increment.Value();
|
|
[[maybe_unused]] const u32 cache_flush = regs.sync_info.unknown.Value();
|
|
if (increment) {
|
|
rasterizer.SignalSyncPoint(sync_point);
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::DrawArrays() {
|
|
LOG_TRACE(HW_GPU, "called, topology={}, count={}", static_cast<u32>(regs.draw.topology.Value()),
|
|
regs.vertex_buffer.count);
|
|
ASSERT_MSG(!(regs.index_array.count && regs.vertex_buffer.count), "Both indexed and direct?");
|
|
|
|
// Both instance configuration registers can not be set at the same time.
|
|
ASSERT_MSG(!regs.draw.instance_next || !regs.draw.instance_cont,
|
|
"Illegal combination of instancing parameters");
|
|
|
|
if (regs.draw.instance_next) {
|
|
// Increment the current instance *before* drawing.
|
|
state.current_instance += 1;
|
|
} else if (!regs.draw.instance_cont) {
|
|
// Reset the current instance to 0.
|
|
state.current_instance = 0;
|
|
}
|
|
|
|
const bool is_indexed{regs.index_array.count && !regs.vertex_buffer.count};
|
|
if (ShouldExecute()) {
|
|
rasterizer.Draw(is_indexed, false);
|
|
}
|
|
|
|
// TODO(bunnei): Below, we reset vertex count so that we can use these registers to determine if
|
|
// the game is trying to draw indexed or direct mode. This needs to be verified on HW still -
|
|
// it's possible that it is incorrect and that there is some other register used to specify the
|
|
// drawing mode.
|
|
if (is_indexed) {
|
|
regs.index_array.count = 0;
|
|
} else {
|
|
regs.vertex_buffer.count = 0;
|
|
}
|
|
}
|
|
|
|
std::optional<u64> Maxwell3D::GetQueryResult() {
|
|
switch (regs.query.query_get.select) {
|
|
case Regs::QuerySelect::Zero:
|
|
return 0;
|
|
case Regs::QuerySelect::SamplesPassed:
|
|
// Deferred.
|
|
rasterizer.Query(regs.query.QueryAddress(), VideoCore::QueryType::SamplesPassed,
|
|
system.GPU().GetTicks());
|
|
return {};
|
|
default:
|
|
UNIMPLEMENTED_MSG("Unimplemented query select type {}",
|
|
static_cast<u32>(regs.query.query_get.select.Value()));
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
void Maxwell3D::ProcessCBBind(std::size_t stage_index) {
|
|
// Bind the buffer currently in CB_ADDRESS to the specified index in the desired shader stage.
|
|
auto& shader = state.shader_stages[stage_index];
|
|
auto& bind_data = regs.cb_bind[stage_index];
|
|
|
|
ASSERT(bind_data.index < Regs::MaxConstBuffers);
|
|
auto& buffer = shader.const_buffers[bind_data.index];
|
|
|
|
buffer.enabled = bind_data.valid.Value() != 0;
|
|
buffer.address = regs.const_buffer.BufferAddress();
|
|
buffer.size = regs.const_buffer.cb_size;
|
|
}
|
|
|
|
void Maxwell3D::ProcessCBData(u32 value) {
|
|
const u32 id = cb_data_state.id;
|
|
cb_data_state.buffer[id][cb_data_state.counter] = value;
|
|
// Increment the current buffer position.
|
|
regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4;
|
|
cb_data_state.counter++;
|
|
}
|
|
|
|
void Maxwell3D::StartCBData(u32 method) {
|
|
constexpr u32 first_cb_data = MAXWELL3D_REG_INDEX(const_buffer.cb_data[0]);
|
|
cb_data_state.start_pos = regs.const_buffer.cb_pos;
|
|
cb_data_state.id = method - first_cb_data;
|
|
cb_data_state.current = method;
|
|
cb_data_state.counter = 0;
|
|
ProcessCBData(regs.const_buffer.cb_data[cb_data_state.id]);
|
|
}
|
|
|
|
void Maxwell3D::ProcessCBMultiData(u32 method, const u32* start_base, u32 amount) {
|
|
if (cb_data_state.current != method) {
|
|
if (cb_data_state.current != null_cb_data) {
|
|
FinishCBData();
|
|
}
|
|
constexpr u32 first_cb_data = MAXWELL3D_REG_INDEX(const_buffer.cb_data[0]);
|
|
cb_data_state.start_pos = regs.const_buffer.cb_pos;
|
|
cb_data_state.id = method - first_cb_data;
|
|
cb_data_state.current = method;
|
|
cb_data_state.counter = 0;
|
|
}
|
|
const std::size_t id = cb_data_state.id;
|
|
const std::size_t size = amount;
|
|
std::size_t i = 0;
|
|
for (; i < size; i++) {
|
|
cb_data_state.buffer[id][cb_data_state.counter] = start_base[i];
|
|
cb_data_state.counter++;
|
|
}
|
|
// Increment the current buffer position.
|
|
regs.const_buffer.cb_pos = regs.const_buffer.cb_pos + 4 * amount;
|
|
}
|
|
|
|
void Maxwell3D::FinishCBData() {
|
|
// Write the input value to the current const buffer at the current position.
|
|
const GPUVAddr buffer_address = regs.const_buffer.BufferAddress();
|
|
ASSERT(buffer_address != 0);
|
|
|
|
// Don't allow writing past the end of the buffer.
|
|
ASSERT(regs.const_buffer.cb_pos <= regs.const_buffer.cb_size);
|
|
|
|
const GPUVAddr address{buffer_address + cb_data_state.start_pos};
|
|
const std::size_t size = regs.const_buffer.cb_pos - cb_data_state.start_pos;
|
|
|
|
const u32 id = cb_data_state.id;
|
|
memory_manager.WriteBlock(address, cb_data_state.buffer[id].data(), size);
|
|
OnMemoryWrite();
|
|
|
|
cb_data_state.id = null_cb_data;
|
|
cb_data_state.current = null_cb_data;
|
|
}
|
|
|
|
Texture::TICEntry Maxwell3D::GetTICEntry(u32 tic_index) const {
|
|
const GPUVAddr tic_address_gpu{regs.tic.TICAddress() + tic_index * sizeof(Texture::TICEntry)};
|
|
|
|
Texture::TICEntry tic_entry;
|
|
memory_manager.ReadBlockUnsafe(tic_address_gpu, &tic_entry, sizeof(Texture::TICEntry));
|
|
|
|
return tic_entry;
|
|
}
|
|
|
|
Texture::TSCEntry Maxwell3D::GetTSCEntry(u32 tsc_index) const {
|
|
const GPUVAddr tsc_address_gpu{regs.tsc.TSCAddress() + tsc_index * sizeof(Texture::TSCEntry)};
|
|
|
|
Texture::TSCEntry tsc_entry;
|
|
memory_manager.ReadBlockUnsafe(tsc_address_gpu, &tsc_entry, sizeof(Texture::TSCEntry));
|
|
return tsc_entry;
|
|
}
|
|
|
|
Texture::FullTextureInfo Maxwell3D::GetTextureInfo(Texture::TextureHandle tex_handle) const {
|
|
return Texture::FullTextureInfo{GetTICEntry(tex_handle.tic_id), GetTSCEntry(tex_handle.tsc_id)};
|
|
}
|
|
|
|
Texture::FullTextureInfo Maxwell3D::GetStageTexture(ShaderType stage, std::size_t offset) const {
|
|
const auto stage_index = static_cast<std::size_t>(stage);
|
|
const auto& shader = state.shader_stages[stage_index];
|
|
const auto& tex_info_buffer = shader.const_buffers[regs.tex_cb_index];
|
|
ASSERT(tex_info_buffer.enabled && tex_info_buffer.address != 0);
|
|
|
|
const GPUVAddr tex_info_address =
|
|
tex_info_buffer.address + offset * sizeof(Texture::TextureHandle);
|
|
|
|
ASSERT(tex_info_address < tex_info_buffer.address + tex_info_buffer.size);
|
|
|
|
const Texture::TextureHandle tex_handle{memory_manager.Read<u32>(tex_info_address)};
|
|
|
|
return GetTextureInfo(tex_handle);
|
|
}
|
|
|
|
u32 Maxwell3D::GetRegisterValue(u32 method) const {
|
|
ASSERT_MSG(method < Regs::NUM_REGS, "Invalid Maxwell3D register");
|
|
return regs.reg_array[method];
|
|
}
|
|
|
|
void Maxwell3D::ProcessClearBuffers() {
|
|
ASSERT(regs.clear_buffers.R == regs.clear_buffers.G &&
|
|
regs.clear_buffers.R == regs.clear_buffers.B &&
|
|
regs.clear_buffers.R == regs.clear_buffers.A);
|
|
|
|
rasterizer.Clear();
|
|
}
|
|
|
|
u32 Maxwell3D::AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const {
|
|
ASSERT(stage != ShaderType::Compute);
|
|
const auto& shader_stage = state.shader_stages[static_cast<std::size_t>(stage)];
|
|
const auto& buffer = shader_stage.const_buffers[const_buffer];
|
|
u32 result;
|
|
std::memcpy(&result, memory_manager.GetPointer(buffer.address + offset), sizeof(u32));
|
|
return result;
|
|
}
|
|
|
|
SamplerDescriptor Maxwell3D::AccessBoundSampler(ShaderType stage, u64 offset) const {
|
|
return AccessBindlessSampler(stage, regs.tex_cb_index, offset * sizeof(Texture::TextureHandle));
|
|
}
|
|
|
|
SamplerDescriptor Maxwell3D::AccessBindlessSampler(ShaderType stage, u64 const_buffer,
|
|
u64 offset) const {
|
|
ASSERT(stage != ShaderType::Compute);
|
|
const auto& shader = state.shader_stages[static_cast<std::size_t>(stage)];
|
|
const auto& tex_info_buffer = shader.const_buffers[const_buffer];
|
|
const GPUVAddr tex_info_address = tex_info_buffer.address + offset;
|
|
|
|
const Texture::TextureHandle tex_handle{memory_manager.Read<u32>(tex_info_address)};
|
|
const Texture::FullTextureInfo tex_info = GetTextureInfo(tex_handle);
|
|
SamplerDescriptor result = SamplerDescriptor::FromTIC(tex_info.tic);
|
|
result.is_shadow.Assign(tex_info.tsc.depth_compare_enabled.Value());
|
|
return result;
|
|
}
|
|
|
|
VideoCore::GuestDriverProfile& Maxwell3D::AccessGuestDriverProfile() {
|
|
return rasterizer.AccessGuestDriverProfile();
|
|
}
|
|
|
|
const VideoCore::GuestDriverProfile& Maxwell3D::AccessGuestDriverProfile() const {
|
|
return rasterizer.AccessGuestDriverProfile();
|
|
}
|
|
|
|
} // namespace Tegra::Engines
|