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56bdb45491
Author | SHA1 | Date |
---|---|---|
Rekai Nyangadzayi Musuka | 56bdb45491 | |
Rekai Nyangadzayi Musuka | a74cbad16d | |
Rekai Nyangadzayi Musuka | d46a1d901c | |
Rekai Nyangadzayi Musuka | b696c24423 | |
Rekai Nyangadzayi Musuka | 15d3b6b2b2 |
22
build.zig
22
build.zig
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@ -105,6 +105,28 @@ pub fn package(
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zgui_c_cpp.linkSystemLibraryName("dwmapi");
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},
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.sdl2_opengl3 => {
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if (target.isWindows()) blk: {
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// see: https://github.com/MasterQ32/SDL.zig/blob/37f4ba9e31bea895fa19ef8b90d1f51111e52e67/Sdk.zig#L182-L199
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zgui_c_cpp.addVcpkgPaths(if (args.options.shared) .dynamic else .static) catch break :blk;
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const vcpkg_triplet = zgui_c_cpp.target.vcpkgTriplet(b.allocator, if (args.options.shared) .Dynamic else .Static) catch |e| {
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std.debug.panic("failed to determing vcpkg triplet: {}", .{e});
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};
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defer b.allocator.free(vcpkg_triplet);
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const include_path = b.pathJoin(&.{ b.vcpkg_root.found, "installed", vcpkg_triplet, "include", "SDL2" });
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zgui_c_cpp.include_dirs.append(.{ .raw_path = include_path }) catch @panic("out of memory");
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const bin_path = zgui_c_cpp.vcpkg_bin_path orelse @panic("vcpkg paths were found, so vcpkg_bin_path should be set ");
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const dll_path = std.fs.path.join(b.allocator, &.{ bin_path, "SDL2.dll" }) catch @panic("out of memory");
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std.fs.cwd().access(dll_path, .{}) catch break :blk;
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b.installBinFile(dll_path, "SDL2.dll");
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}
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zgui_c_cpp.linkSystemLibrary("SDL2");
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zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_sdl.cpp", cflags);
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zgui_c_cpp.addCSourceFile(thisDir() ++ "/libs/imgui/backends/imgui_impl_opengl3.cpp", cflags);
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},
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@ -69,6 +69,7 @@
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// SDL
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#include <SDL.h>
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#include <SDL_syswm.h>
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#if defined(__APPLE__)
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#include <TargetConditionals.h>
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#endif
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@ -0,0 +1,42 @@
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const zgui = @import("gui.zig");
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const SDL_GL_Context = *anyopaque;
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pub fn init(window: *anyopaque, context: SDL_GL_Context, glsl_version: []const u8) void {
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if (!ImGui_ImplSDL2_InitForOpenGL(window, context)) unreachable;
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if (!ImGui_ImplOpenGL3_Init(glsl_version.ptr)) unreachable;
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}
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pub fn deinit() void {
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ImGui_ImplOpenGL3_Shutdown();
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ImGui_ImplSDL2_Shutdown();
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}
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pub fn newFrame(width: f32, height: f32) void {
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ImGui_ImplOpenGL3_NewFrame();
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ImGui_ImplSDL2_NewFrame();
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zgui.io.setDisplaySize(width, height);
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zgui.io.setDisplayFramebufferScale(1.0, 1.0);
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zgui.newFrame();
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}
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pub fn draw() void {
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zgui.render();
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ImGui_ImplOpenGL3_RenderDrawData(zgui.getDrawData());
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}
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pub fn processEvent(event: *anyopaque) bool {
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return ImGui_ImplSDL2_ProcessEvent(event);
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}
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extern fn ImGui_ImplSDL2_InitForOpenGL(window: *anyopaque, sdl_gl_context: SDL_GL_Context) bool;
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extern fn ImGui_ImplSDL2_Shutdown() void;
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extern fn ImGui_ImplSDL2_NewFrame() void;
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extern fn ImGui_ImplSDL2_ProcessEvent(event: *anyopaque) bool;
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extern fn ImGui_ImplOpenGL3_Init(glsl_version: [*]const u8) bool;
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extern fn ImGui_ImplOpenGL3_Shutdown() void;
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extern fn ImGui_ImplOpenGL3_NewFrame() void;
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extern fn ImGui_ImplOpenGL3_RenderDrawData(draw_data: *anyopaque) void;
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@ -10,6 +10,7 @@ pub usingnamespace @import("gui.zig");
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pub const plot = @import("plot.zig");
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pub const backend = switch (@import("zgui_options").backend) {
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.glfw_wgpu => @import("backend_glfw_wgpu.zig"),
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.glfw_opengl3 => @import("backend_glfw_opengl3.zig"),
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.no_backend, .win32_dx12, .sdl2_opengl3 => @panic("unsupported backend"),
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.sdl2_opengl3 => @import("backend_sdl2_opengl3.zig"),
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.win32_dx12 => .{}, // TODO:
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.no_backend => .{},
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};
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