450 lines
13 KiB
C++
450 lines
13 KiB
C++
#include "app/emu/emulator.h"
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#include <imgui/imgui.h>
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#include <imgui_memory_editor.h>
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#include <cstdint>
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#include <vector>
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#include "app/core/constants.h"
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#include "app/core/platform/file_dialog.h"
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#include "app/emu/snes.h"
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#include "app/gui/icons.h"
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#include "app/gui/input.h"
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#include "app/gui/zeml.h"
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#include "app/rom.h"
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namespace yaze {
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namespace app {
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namespace emu {
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namespace {
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bool ShouldDisplay(const InstructionEntry& entry, const char* filter) {
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if (filter[0] == '\0') {
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return true;
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}
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// Supported fields: address, opcode, operands
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if (entry.operands.find(filter) != std::string::npos) {
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return true;
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}
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if (absl::StrFormat("%06X", entry.address).find(filter) !=
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std::string::npos) {
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return true;
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}
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if (opcode_to_mnemonic.at(entry.opcode).find(filter) != std::string::npos) {
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return true;
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}
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return false;
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}
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} // namespace
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using ImGui::NextColumn;
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using ImGui::SameLine;
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using ImGui::Separator;
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using ImGui::TableNextColumn;
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using ImGui::Text;
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void Emulator::Run() {
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static bool loaded = false;
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if (!snes_.running() && rom()->is_loaded()) {
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ppu_texture_ =
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SDL_CreateTexture(rom()->renderer().get(), SDL_PIXELFORMAT_ARGB8888,
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SDL_TEXTUREACCESS_STREAMING, 512, 480);
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if (ppu_texture_ == NULL) {
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printf("Failed to create texture: %s\n", SDL_GetError());
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return;
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}
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rom_data_ = rom()->vector();
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snes_.Init(rom_data_);
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wanted_frames_ = 1.0 / (snes_.Memory().pal_timing() ? 50.0 : 60.0);
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wanted_samples_ = 48000 / (snes_.Memory().pal_timing() ? 50 : 60);
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loaded = true;
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count_frequency = SDL_GetPerformanceFrequency();
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last_count = SDL_GetPerformanceCounter();
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time_adder = 0.0;
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}
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RenderNavBar();
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if (running_) {
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HandleEvents();
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uint64_t current_count = SDL_GetPerformanceCounter();
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uint64_t delta = current_count - last_count;
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last_count = current_count;
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float seconds = delta / (float)count_frequency;
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time_adder += seconds;
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// allow 2 ms earlier, to prevent skipping due to being just below wanted
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while (time_adder >= wanted_frames_ - 0.002) {
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time_adder -= wanted_frames_;
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if (loaded) {
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if (turbo_mode_) {
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snes_.RunFrame();
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}
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snes_.RunFrame();
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snes_.SetSamples(audio_buffer_, wanted_samples_);
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if (SDL_GetQueuedAudioSize(audio_device_) <= wanted_samples_ * 4 * 6) {
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SDL_QueueAudio(audio_device_, audio_buffer_, wanted_samples_ * 4);
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}
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void* ppu_pixels_;
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int ppu_pitch_;
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if (SDL_LockTexture(ppu_texture_, NULL, &ppu_pixels_, &ppu_pitch_) !=
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0) {
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printf("Failed to lock texture: %s\n", SDL_GetError());
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return;
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}
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snes_.SetPixels(static_cast<uint8_t*>(ppu_pixels_));
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SDL_UnlockTexture(ppu_texture_);
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}
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}
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}
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gui::zeml::Render(emulator_node_);
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}
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void Emulator::RenderSnesPpu() {
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ImVec2 size = ImVec2(512, 480);
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if (snes_.running()) {
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ImGui::BeginChild("EmulatorOutput", ImVec2(0, 480), true,
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ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoScrollbar);
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ImGui::SetCursorPosX((ImGui::GetWindowSize().x - size.x) * 0.5f);
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ImGui::SetCursorPosY((ImGui::GetWindowSize().y - size.y) * 0.5f);
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ImGui::Image((void*)ppu_texture_, size, ImVec2(0, 0), ImVec2(1, 1));
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ImGui::EndChild();
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} else {
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ImGui::Text("Emulator output not available.");
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ImGui::BeginChild("EmulatorOutput", ImVec2(0, 480), true,
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ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoScrollbar);
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ImGui::SetCursorPosX(((ImGui::GetWindowSize().x * 0.5f) - size.x) * 0.5f);
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ImGui::SetCursorPosY(((ImGui::GetWindowSize().y * 0.5f) - size.y) * 0.5f);
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ImGui::Dummy(size);
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ImGui::EndChild();
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}
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ImGui::Separator();
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}
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void Emulator::RenderNavBar() {
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std::string navbar_layout = R"(
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BeginMenuBar {
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BeginMenu title="Options" {
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MenuItem title="Input" {}
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MenuItem title="Audio" {}
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MenuItem title="Video" {}
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}
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}
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)";
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static auto navbar_node = gui::zeml::Parse(navbar_layout);
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gui::zeml::Render(navbar_node);
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if (ImGui::Button(ICON_MD_PLAY_ARROW)) {
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running_ = true;
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Start Emulation");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_PAUSE)) {
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running_ = false;
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Pause Emulation");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_SKIP_NEXT)) {
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// Step through Code logic
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snes_.cpu().RunOpcode();
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Step Through Code");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_REFRESH)) {
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// Reset Emulator logic
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snes_.Reset(true);
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Reset Emulator");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_STOP)) {
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// Stop Emulation logic
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running_ = false;
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Stop Emulation");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_SAVE)) {
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// Save State logic
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Save State");
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}
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SameLine();
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if (ImGui::Button(ICON_MD_SYSTEM_UPDATE_ALT)) {
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Load State");
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}
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// Additional elements
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SameLine();
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if (ImGui::Button(ICON_MD_SETTINGS)) {
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// Settings logic
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Settings");
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}
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static bool open_file = false;
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SameLine();
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if (ImGui::Button(ICON_MD_INFO)) {
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open_file = true;
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// About Debugger logic
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("About Debugger");
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}
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SameLine();
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ImGui::Checkbox("Logging", snes_.cpu().mutable_log_instructions());
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SameLine();
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ImGui::Checkbox("Turbo", &turbo_mode_);
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static bool show_memory_viewer = false;
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SameLine();
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if (ImGui::Button(ICON_MD_MEMORY)) {
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show_memory_viewer = !show_memory_viewer;
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}
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if (ImGui::IsItemHovered()) {
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ImGui::SetTooltip("Memory Viewer");
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}
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if (show_memory_viewer) {
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ImGui::Begin("Memory Viewer", &show_memory_viewer);
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RenderMemoryViewer();
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ImGui::End();
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}
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if (open_file) {
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auto file_name = FileDialogWrapper::ShowOpenFileDialog();
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if (!file_name.empty()) {
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std::ifstream file(file_name, std::ios::binary);
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// Load the data directly into rom_data
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rom_data_.assign(std::istreambuf_iterator<char>(file),
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std::istreambuf_iterator<char>());
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snes_.Init(rom_data_);
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open_file = false;
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}
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}
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}
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void Emulator::HandleEvents() {
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// Handle user input events
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// ...
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}
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void Emulator::RenderBreakpointList() {
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if (ImGui::Button("Set SPC PC")) {
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snes_.apu().spc700().PC = 0xFFEF;
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}
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Separator();
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Text("Breakpoints");
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Separator();
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static char breakpoint_input[10] = "";
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static int current_memory_mode = 0;
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static bool read_mode = false;
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static bool write_mode = false;
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static bool execute_mode = false;
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if (ImGui::Combo("##TypeOfMemory", ¤t_memory_mode, "PRG\0RAM\0")) {
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}
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ImGui::Checkbox("Read", &read_mode);
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SameLine();
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ImGui::Checkbox("Write", &write_mode);
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SameLine();
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ImGui::Checkbox("Execute", &execute_mode);
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// Breakpoint input fields and buttons
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if (ImGui::InputText("##BreakpointInput", breakpoint_input, 10,
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ImGuiInputTextFlags_EnterReturnsTrue)) {
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int breakpoint = std::stoi(breakpoint_input, nullptr, 16);
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snes_.cpu().SetBreakpoint(breakpoint);
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memset(breakpoint_input, 0, sizeof(breakpoint_input));
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}
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SameLine();
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if (ImGui::Button("Add")) {
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int breakpoint = std::stoi(breakpoint_input, nullptr, 16);
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snes_.cpu().SetBreakpoint(breakpoint);
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memset(breakpoint_input, 0, sizeof(breakpoint_input));
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}
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SameLine();
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if (ImGui::Button("Clear")) {
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snes_.cpu().ClearBreakpoints();
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}
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Separator();
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auto breakpoints = snes_.cpu().GetBreakpoints();
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if (!breakpoints.empty()) {
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Text("Breakpoints:");
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ImGui::BeginChild("BreakpointsList", ImVec2(0, 100), true);
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for (auto breakpoint : breakpoints) {
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if (ImGui::Selectable(absl::StrFormat("0x%04X", breakpoint).c_str())) {
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// Jump to breakpoint
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// snes_.cpu().JumpToBreakpoint(breakpoint);
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}
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}
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ImGui::EndChild();
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}
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Separator();
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gui::InputHexByte("PB", &manual_pb_, 50.f);
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gui::InputHexWord("PC", &manual_pc_, 75.f);
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if (ImGui::Button("Set Current Address")) {
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snes_.cpu().PC = manual_pc_;
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snes_.cpu().PB = manual_pb_;
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}
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}
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void Emulator::RenderMemoryViewer() {
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static MemoryEditor ram_edit;
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static MemoryEditor aram_edit;
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static MemoryEditor mem_edit;
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if (ImGui::BeginTable("MemoryViewerTable", 4,
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ImGuiTableFlags_Resizable | ImGuiTableFlags_ScrollY)) {
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ImGui::TableSetupColumn("Bookmarks");
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ImGui::TableSetupColumn("RAM");
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ImGui::TableSetupColumn("ARAM");
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ImGui::TableSetupColumn("ROM");
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ImGui::TableHeadersRow();
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TableNextColumn();
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if (ImGui::CollapsingHeader("Bookmarks", ImGuiTreeNodeFlags_DefaultOpen)) {
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// Input for adding a new bookmark
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static char nameBuf[256];
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static uint64_t uint64StringBuf;
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ImGui::InputText("Name", nameBuf, IM_ARRAYSIZE(nameBuf));
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gui::InputHex("Address", &uint64StringBuf);
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if (ImGui::Button("Add Bookmark")) {
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bookmarks.push_back({nameBuf, uint64StringBuf});
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memset(nameBuf, 0, sizeof(nameBuf));
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uint64StringBuf = 0;
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}
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// Tree view of bookmarks
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for (const auto& bookmark : bookmarks) {
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if (ImGui::TreeNode(bookmark.name.c_str(), ICON_MD_STAR)) {
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auto bookmark_string = absl::StrFormat(
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"%s: 0x%08X", bookmark.name.c_str(), bookmark.value);
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if (ImGui::Selectable(bookmark_string.c_str())) {
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mem_edit.GotoAddrAndHighlight(static_cast<ImU64>(bookmark.value),
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1);
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}
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SameLine();
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if (ImGui::Button("Delete")) {
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// Logic to delete the bookmark
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bookmarks.erase(std::remove_if(bookmarks.begin(), bookmarks.end(),
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[&](const Bookmark& b) {
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return b.name == bookmark.name &&
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b.value == bookmark.value;
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}),
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bookmarks.end());
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}
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ImGui::TreePop();
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}
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}
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}
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TableNextColumn();
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if (ImGui::BeginChild("RAM", ImVec2(0, 0), true,
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ImGuiWindowFlags_NoMove |
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ImGuiWindowFlags_NoScrollbar |
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ImGuiWindowFlags_NoScrollWithMouse)) {
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ram_edit.DrawContents((void*)snes_.get_ram(), 0x20000);
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ImGui::EndChild();
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}
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TableNextColumn();
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if (ImGui::BeginChild("ARAM", ImVec2(0, 0), true,
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ImGuiWindowFlags_NoMove |
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ImGuiWindowFlags_NoScrollbar |
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ImGuiWindowFlags_NoScrollWithMouse)) {
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aram_edit.DrawContents((void*)snes_.apu().ram.data(),
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snes_.apu().ram.size());
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ImGui::EndChild();
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}
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TableNextColumn();
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if (ImGui::BeginChild("ROM", ImVec2(0, 0), true,
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ImGuiWindowFlags_NoMove |
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ImGuiWindowFlags_NoScrollbar |
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ImGuiWindowFlags_NoScrollWithMouse)) {
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mem_edit.DrawContents((void*)snes_.Memory().rom_.data(),
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snes_.Memory().rom_.size());
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ImGui::EndChild();
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}
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ImGui::EndTable();
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}
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}
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void Emulator::RenderCpuInstructionLog(
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const std::vector<InstructionEntry>& instruction_log) {
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if (ImGui::CollapsingHeader("Instruction Log",
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ImGuiTreeNodeFlags_DefaultOpen)) {
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// Filtering options
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static char filter[256];
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ImGui::InputText("Filter", filter, IM_ARRAYSIZE(filter));
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// Instruction list
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ImGui::BeginChild("InstructionList", ImVec2(0, 0), ImGuiChildFlags_None);
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for (const auto& entry : instruction_log) {
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if (ShouldDisplay(entry, filter)) {
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if (ImGui::Selectable(
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absl::StrFormat("%06X:", entry.address).c_str())) {
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// Logic to handle click (e.g., jump to address, set breakpoint)
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}
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ImGui::SameLine();
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ImVec4 color = ImVec4(1.0f, 1.0f, 1.0f, 1.0f);
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ImGui::TextColored(color, "%s",
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opcode_to_mnemonic.at(entry.opcode).c_str());
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ImVec4 operand_color = ImVec4(0.7f, 0.5f, 0.3f, 1.0f);
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ImGui::SameLine();
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ImGui::TextColored(operand_color, "%s", entry.operands.c_str());
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}
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}
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// Jump to the bottom of the child scrollbar
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if (ImGui::GetScrollY() >= ImGui::GetScrollMaxY()) {
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ImGui::SetScrollHereY(1.0f);
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}
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ImGui::EndChild();
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}
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}
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} // namespace emu
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} // namespace app
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} // namespace yaze
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