303 lines
13 KiB
C++
303 lines
13 KiB
C++
/*
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* Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
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*/
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#include <glad/glad.h>
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#include <GLFW/glfw3.h>
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#include <imgui_impl_glfw.h>
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#include <imgui_impl_opengl3.h>
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#include <ox/std/defines.hpp>
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#include <turbine/config.hpp>
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#include "context.hpp"
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namespace turbine {
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[[nodiscard]]
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inline GlfwContext &glctx(Context &ctx) noexcept {
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if constexpr(ox::defines::Debug) {
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return dynamic_cast<GlfwContext&>(ctx);
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} else {
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return static_cast<GlfwContext&>(ctx);
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}
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}
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namespace gl {
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void addDrawer(Context &ctx, Drawer *cd) noexcept {
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auto &gctx = glctx(ctx);
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gctx.drawers.emplace_back(cd);
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}
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void removeDrawer(Context &ctx, Drawer *cd) noexcept {
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auto &gctx = glctx(ctx);
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for (auto i = 0u; i < gctx.drawers.size(); ++i) {
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if (gctx.drawers[i] == cd) {
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oxIgnoreError(gctx.drawers.erase(i));
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break;
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}
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}
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}
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}
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static void handleGlfwError(int err, const char *desc) noexcept {
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oxErrf("GLFW error ({}): {}\n", err, desc);
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}
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static auto setKeyDownStatus(GlfwContext *gctx, Key key, bool down) noexcept {
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if (down) {
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gctx->keysDown |= 1llu << static_cast<int>(key);
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} else {
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gctx->keysDown &= ~(1llu << static_cast<int>(key));
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}
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}
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static void handleKeyPress(Context *ctx, int key, bool down) noexcept {
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static constexpr auto keyMap = [] {
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ox::Array<Key, GLFW_KEY_LAST> map = {};
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for (auto i = 0u; i < 26; ++i) {
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map[GLFW_KEY_A + i] = static_cast<Key>(static_cast<unsigned>(Key::Alpha_A) + i);
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}
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for (auto i = 0u; i < 10; ++i) {
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map[GLFW_KEY_0 + i] = static_cast<Key>(static_cast<unsigned>(Key::Num_0) + i);
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}
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map[GLFW_KEY_LEFT_ALT] = Key::Mod_Alt;
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map[GLFW_KEY_RIGHT_ALT] = Key::Mod_Alt;
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map[GLFW_KEY_LEFT_CONTROL] = Key::Mod_Ctrl;
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map[GLFW_KEY_RIGHT_CONTROL] = Key::Mod_Ctrl;
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map[GLFW_KEY_LEFT_SUPER] = Key::Mod_Super;
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map[GLFW_KEY_RIGHT_SUPER] = Key::Mod_Super;
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map[GLFW_KEY_ESCAPE] = Key::Escape;
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return map;
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}();
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const auto eventHandler = keyEventHandler(*ctx);
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auto &gctx = glctx(*ctx);
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const auto k = keyMap[static_cast<std::size_t>(key)];
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setKeyDownStatus(&gctx, k, down);
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if (eventHandler) {
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eventHandler(*ctx, k, down);
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}
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//if constexpr(ox::defines::Debug) {
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// switch (key) {
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// case GLFW_KEY_ESCAPE:
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// case GLFW_KEY_Q:
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// oxIgnoreError(requestShutdown(ctx));
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// break;
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// default:
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// break;
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// }
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//}
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}
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static void handleGlfwCursorPosEvent(GLFWwindow*, double, double) noexcept {
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}
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static void handleGlfwMouseButtonEvent(GLFWwindow *window, int, int, int) noexcept {
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const auto ctx = static_cast<GlfwContext*>(glfwGetWindowUserPointer(window));
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ctx->uninterruptedRefreshes = 25;
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}
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static void handleGlfwKeyEvent(GLFWwindow *window, int key, int, int action, int) noexcept {
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const auto ctx = static_cast<GlfwContext*>(glfwGetWindowUserPointer(window));
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ctx->uninterruptedRefreshes = 25;
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if (action == GLFW_PRESS) {
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handleKeyPress(ctx, key, true);
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} else if (action == GLFW_RELEASE) {
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handleKeyPress(ctx, key, false);
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}
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}
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static void themeImgui() noexcept {
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// Dark Ruda style by Raikiri from ImThemes
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auto &style = ImGui::GetStyle();
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style.Alpha = 1.0;
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style.DisabledAlpha = 0.6000000238418579;
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style.WindowPadding = ImVec2(8.0, 8.0);
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style.WindowRounding = 0.0;
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style.WindowBorderSize = 1.0;
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style.WindowMinSize = ImVec2(32.0, 32.0);
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style.WindowTitleAlign = ImVec2(0.0, 0.5);
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style.WindowMenuButtonPosition = ImGuiDir_Left;
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style.ChildRounding = 0.0;
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style.ChildBorderSize = 1.0;
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style.PopupRounding = 0.0;
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style.PopupBorderSize = 1.0;
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style.FramePadding = ImVec2(4.0, 3.0);
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// custom value
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style.FrameRounding = 3.0;
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style.FrameBorderSize = 0.0;
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style.ItemSpacing = ImVec2(8.0, 4.0);
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style.ItemInnerSpacing = ImVec2(4.0, 4.0);
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style.CellPadding = ImVec2(4.0, 2.0);
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style.IndentSpacing = 21.0;
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style.ColumnsMinSpacing = 6.0;
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style.ScrollbarSize = 14.0;
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style.ScrollbarRounding = 9.0;
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style.GrabMinSize = 10.0;
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style.GrabRounding = 4.0;
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style.TabRounding = 4.0;
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style.TabBorderSize = 0.0;
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style.TabMinWidthForCloseButton = 0.0;
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style.ColorButtonPosition = ImGuiDir_Right;
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style.ButtonTextAlign = ImVec2(0.5, 0.5);
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style.SelectableTextAlign = ImVec2(0.0, 0.0);
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// colors
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constexpr auto imVec4 = [](double r, double g, double b, double a) {
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return ImVec4(
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static_cast<float>(r),
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static_cast<float>(g),
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static_cast<float>(b),
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static_cast<float>(a));
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};
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style.Colors[ImGuiCol_Text] = imVec4(0.9490196108818054, 0.95686274766922, 0.9764705896377563, 1.0);
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style.Colors[ImGuiCol_TextDisabled] = imVec4(0.3568627536296844, 0.4196078479290009, 0.4666666686534882, 1.0);
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style.Colors[ImGuiCol_WindowBg] = imVec4(0.1098039224743843, 0.1490196138620377, 0.168627455830574, 1.0);
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style.Colors[ImGuiCol_ChildBg] = imVec4(0.1490196138620377, 0.1764705926179886, 0.2196078449487686, 1.0);
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style.Colors[ImGuiCol_PopupBg] = imVec4(0.0784313753247261, 0.0784313753247261, 0.0784313753247261, 0.9399999976158142);
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style.Colors[ImGuiCol_Border] = imVec4(0.0784313753247261, 0.09803921729326248, 0.1176470592617989, 1.0);
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style.Colors[ImGuiCol_BorderShadow] = imVec4(0.0, 0.0, 0.0, 0.0);
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style.Colors[ImGuiCol_FrameBg] = imVec4(0.2000000029802322, 0.2470588237047195, 0.2862745225429535, 1.0);
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style.Colors[ImGuiCol_FrameBgHovered] = imVec4(0.1176470592617989, 0.2000000029802322, 0.2784313857555389, 1.0);
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style.Colors[ImGuiCol_FrameBgActive] = imVec4(0.08627451211214066, 0.1176470592617989, 0.1372549086809158, 1.0);
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style.Colors[ImGuiCol_TitleBg] = imVec4(0.08627451211214066, 0.1176470592617989, 0.1372549086809158, 0.6499999761581421);
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style.Colors[ImGuiCol_TitleBgActive] = imVec4(0.0784313753247261, 0.09803921729326248, 0.1176470592617989, 1.0);
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style.Colors[ImGuiCol_TitleBgCollapsed] = imVec4(0.0, 0.0, 0.0, 0.5099999904632568);
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style.Colors[ImGuiCol_MenuBarBg] = imVec4(0.1490196138620377, 0.1764705926179886, 0.2196078449487686, 1.0);
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style.Colors[ImGuiCol_ScrollbarBg] = imVec4(0.01960784383118153, 0.01960784383118153, 0.01960784383118153, 0.3899999856948853);
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style.Colors[ImGuiCol_ScrollbarGrab] = imVec4(0.2000000029802322, 0.2470588237047195, 0.2862745225429535, 1.0);
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style.Colors[ImGuiCol_ScrollbarGrabHovered] = imVec4(0.1764705926179886, 0.2196078449487686, 0.2470588237047195, 1.0);
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style.Colors[ImGuiCol_ScrollbarGrabActive] = imVec4(0.08627451211214066, 0.2078431397676468, 0.3098039329051971, 1.0);
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style.Colors[ImGuiCol_CheckMark] = imVec4(0.2784313857555389, 0.5568627715110779, 1.0, 1.0);
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style.Colors[ImGuiCol_SliderGrab] = imVec4(0.2784313857555389, 0.5568627715110779, 1.0, 1.0);
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style.Colors[ImGuiCol_SliderGrabActive] = imVec4(0.3686274588108063, 0.6078431606292725, 1.0, 1.0);
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style.Colors[ImGuiCol_Button] = imVec4(0.2000000029802322, 0.2470588237047195, 0.2862745225429535, 1.0);
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style.Colors[ImGuiCol_ButtonHovered] = imVec4(0.2784313857555389, 0.5568627715110779, 1.0, 1.0);
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style.Colors[ImGuiCol_ButtonActive] = imVec4(0.05882352963089943, 0.529411792755127, 0.9764705896377563, 1.0);
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// custom value
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style.Colors[ImGuiCol_Header] = imVec4(0.4000000029802322, 0.4470588237047195, 0.4862745225429535, 0.550000011920929);
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style.Colors[ImGuiCol_HeaderHovered] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.800000011920929);
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style.Colors[ImGuiCol_HeaderActive] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 1.0);
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style.Colors[ImGuiCol_Separator] = imVec4(0.2000000029802322, 0.2470588237047195, 0.2862745225429535, 1.0);
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style.Colors[ImGuiCol_SeparatorHovered] = imVec4(0.09803921729326248, 0.4000000059604645, 0.7490196228027344, 0.7799999713897705);
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style.Colors[ImGuiCol_SeparatorActive] = imVec4(0.09803921729326248, 0.4000000059604645, 0.7490196228027344, 1.0);
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style.Colors[ImGuiCol_ResizeGrip] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.25);
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style.Colors[ImGuiCol_ResizeGripHovered] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.6700000166893005);
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style.Colors[ImGuiCol_ResizeGripActive] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.949999988079071);
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style.Colors[ImGuiCol_Tab] = imVec4(0.1098039224743843, 0.1490196138620377, 0.168627455830574, 1.0);
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style.Colors[ImGuiCol_TabHovered] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.800000011920929);
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style.Colors[ImGuiCol_TabActive] = imVec4(0.2000000029802322, 0.2470588237047195, 0.2862745225429535, 1.0);
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style.Colors[ImGuiCol_TabUnfocused] = imVec4(0.1098039224743843, 0.1490196138620377, 0.168627455830574, 1.0);
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style.Colors[ImGuiCol_TabUnfocusedActive] = imVec4(0.1098039224743843, 0.1490196138620377, 0.168627455830574, 1.0);
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style.Colors[ImGuiCol_PlotLines] = imVec4(0.6078431606292725, 0.6078431606292725, 0.6078431606292725, 1.0);
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style.Colors[ImGuiCol_PlotLinesHovered] = imVec4(1.0, 0.4274509847164154, 0.3490196168422699, 1.0);
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style.Colors[ImGuiCol_PlotHistogram] = imVec4(0.8980392217636108, 0.6980392336845398, 0.0, 1.0);
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style.Colors[ImGuiCol_PlotHistogramHovered] = imVec4(1.0, 0.6000000238418579, 0.0, 1.0);
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style.Colors[ImGuiCol_TableHeaderBg] = imVec4(0.1882352977991104, 0.1882352977991104, 0.2000000029802322, 1.0);
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style.Colors[ImGuiCol_TableBorderStrong] = imVec4(0.3098039329051971, 0.3098039329051971, 0.3490196168422699, 1.0);
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style.Colors[ImGuiCol_TableBorderLight] = imVec4(0.2274509817361832, 0.2274509817361832, 0.2470588237047195, 1.0);
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style.Colors[ImGuiCol_TableRowBg] = imVec4(0.0, 0.0, 0.0, 0.0);
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style.Colors[ImGuiCol_TableRowBgAlt] = imVec4(1.0, 1.0, 1.0, 0.05999999865889549);
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style.Colors[ImGuiCol_TextSelectedBg] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 0.3499999940395355);
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style.Colors[ImGuiCol_DragDropTarget] = imVec4(1.0, 1.0, 0.0, 0.8999999761581421);
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style.Colors[ImGuiCol_NavHighlight] = imVec4(0.2588235437870026, 0.5882353186607361, 0.9764705896377563, 1.0);
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style.Colors[ImGuiCol_NavWindowingHighlight] = imVec4(1.0, 1.0, 1.0, 0.699999988079071);
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style.Colors[ImGuiCol_NavWindowingDimBg] = imVec4(0.800000011920929, 0.800000011920929, 0.800000011920929, 0.2000000029802322);
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style.Colors[ImGuiCol_ModalWindowDimBg] = imVec4(0.800000011920929, 0.800000011920929, 0.800000011920929, 0.3499999940395355);
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}
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ox::Error initGfx(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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glfwSetErrorCallback(handleGlfwError);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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if constexpr(ox::defines::OS == ox::OS::Darwin) {
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
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}
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glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
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auto cstr = ox_malloca(ctx.keelCtx.appName.bytes() + 1, char);
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ox_strncpy(cstr.get(), ctx.keelCtx.appName.data(), ctx.keelCtx.appName.bytes());
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constexpr auto Scale = 5;
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gctx.window = glfwCreateWindow(240 * Scale, 160 * Scale, cstr, nullptr, nullptr);
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if (gctx.window == nullptr) {
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return OxError(1, "Could not open GLFW window");
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}
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glfwSetCursorPosCallback(gctx.window, handleGlfwCursorPosEvent);
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glfwSetMouseButtonCallback(gctx.window, handleGlfwMouseButtonEvent);
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glfwSetKeyCallback(gctx.window, handleGlfwKeyEvent);
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glfwSetWindowUserPointer(gctx.window, &ctx);
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glfwMakeContextCurrent(gctx.window);
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if (!gladLoadGLES2Loader(reinterpret_cast<GLADloadproc>(glfwGetProcAddress))) {
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return OxError(2, "Could not init Glad");
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}
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if constexpr(config::ImGuiEnabled) {
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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auto &io = ImGui::GetIO();
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
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//io.MouseDrawCursor = true;
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ImGui_ImplGlfw_InitForOpenGL(gctx.window, true);
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ImGui_ImplOpenGL3_Init();
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themeImgui();
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}
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return {};
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}
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void setWindowTitle(Context &ctx, ox::CRStringView title) noexcept {
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auto &gctx = glctx(ctx);
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auto cstr = ox_malloca(title.bytes() + 1, char);
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ox_strncpy(cstr.get(), title.data(), title.bytes());
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glfwSetWindowTitle(gctx.window, cstr);
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}
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void focusWindow(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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glfwFocusWindow(gctx.window);
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}
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int getScreenWidth(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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int w = 0, h = 0;
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glfwGetFramebufferSize(gctx.window, &w, &h);
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return w;
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}
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int getScreenHeight(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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int w = 0, h = 0;
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glfwGetFramebufferSize(gctx.window, &w, &h);
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return h;
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}
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ox::Size getScreenSize(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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int w = 0, h = 0;
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glfwGetFramebufferSize(gctx.window, &w, &h);
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return {w, h};
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}
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ox::Bounds getWindowBounds(Context &ctx) noexcept {
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auto &gctx = glctx(ctx);
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ox::Bounds bnds;
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glfwGetWindowPos(gctx.window, &bnds.x, &bnds.y);
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glfwGetWindowSize(gctx.window, &bnds.width, &bnds.height);
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return bnds;
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}
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ox::Error setWindowBounds(Context &ctx, const ox::Bounds &bnds) noexcept {
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auto &gctx = glctx(ctx);
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glfwSetWindowPos(gctx.window, bnds.x, bnds.y);
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glfwSetWindowSize(gctx.window, bnds.width, bnds.height);
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return {};
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}
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void setConstantRefresh(Context &ctx, bool r) noexcept {
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auto &gctx = glctx(ctx);
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gctx.constantRefresh = r;
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}
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}
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