diff --git a/src/game.zig b/src/game.zig index bd2c153..26ac7d4 100644 --- a/src/game.zig +++ b/src/game.zig @@ -1,31 +1,14 @@ const std = @import("std"); const sdl = @import("sdl.zig"); +const Graphics = @import("graphics.zig"); -renderer: ?*sdl.SDL_Renderer, -window: ?*sdl.SDL_Window, +graphics: Graphics, running: bool, const Self = @This(); pub fn init() GameError!Self { - if (!sdl.SDL_Init(sdl.SDL_INIT_VIDEO | sdl.SDL_INIT_EVENTS)) return GameError.SdlError; - - var renderer: ?*sdl.SDL_Renderer = null; - var window: ?*sdl.SDL_Window = null; - - if (!sdl.SDL_CreateWindowAndRenderer( - "Spacefarer", - 1600, - 900, - sdl.SDL_WINDOW_VULKAN, - &window, - &renderer, - )) return GameError.SdlError; - - if (!sdl.SDL_SetRenderVSync(renderer, sdl.SDL_RENDERER_VSYNC_ADAPTIVE)) return GameError.SdlError; - return Self{ - .renderer = renderer, - .window = window, + .graphics = try Graphics.create(), .running = false, }; } @@ -47,9 +30,8 @@ fn update(self: *Self) GameError!void { } fn draw(self: *Self) GameError!void { - if (!sdl.SDL_SetRenderDrawColor(self.renderer, 0, 0, 0, 255)) return GameError.SdlError; - if (!sdl.SDL_RenderClear(self.renderer)) return GameError.SdlError; - if (!sdl.SDL_RenderPresent(self.renderer)) return GameError.SdlError; + try self.graphics.begin_draw(); + try self.graphics.end_draw(); } fn process_events(self: *Self) GameError!void { @@ -78,8 +60,7 @@ fn process_event(self: *Self, event: sdl.SDL_Event) void { } pub fn deinit(self: *Self) void { - sdl.SDL_DestroyRenderer(self.renderer); - sdl.SDL_DestroyWindow(self.window); + self.graphics.destroy(); sdl.SDL_Quit(); } diff --git a/src/graphics.zig b/src/graphics.zig index 5c17d7d..cfd167f 100644 --- a/src/graphics.zig +++ b/src/graphics.zig @@ -1 +1,73 @@ +const std = @import("std"); const sdl = @import("sdl.zig"); +const GameError = @import("game.zig").GameError; + +window: *sdl.SDL_Window, +renderer: *sdl.SDL_Renderer, +device: *sdl.SDL_GPUDevice, +/// Only available while drawing +command_buffer: ?*sdl.SDL_GPUCommandBuffer, + +const Self = @This(); +pub fn create() GameError!Self { + // Init + if (!sdl.SDL_Init(sdl.SDL_INIT_VIDEO | sdl.SDL_INIT_EVENTS)) return GameError.SdlError; + + // Window and Renderer + var renderer: ?*sdl.SDL_Renderer = null; + var window: ?*sdl.SDL_Window = null; + + if (!sdl.SDL_CreateWindowAndRenderer( + "Spacefarer", + 1600, + 900, + sdl.SDL_WINDOW_VULKAN, + &window, + &renderer, + )) return GameError.SdlError; + errdefer sdl.SDL_DestroyRenderer(renderer); + errdefer sdl.SDL_DestroyWindow(window); + + if (!sdl.SDL_SetRenderVSync(renderer, sdl.SDL_RENDERER_VSYNC_ADAPTIVE)) return GameError.SdlError; + + // Device + const device = sdl.SDL_CreateGPUDevice( + sdl.SDL_GPU_SHADERFORMAT_SPIRV, + @import("builtin").mode == .Debug, + null, + ) orelse return GameError.SdlError; + errdefer sdl.SDL_DestroyGPUDevice(device); + + // Claim + if (!sdl.SDL_ClaimWindowForGPUDevice(device, window)) return GameError.SdlError; + errdefer sdl.SDL_ReleaseWindowFromGPUDevice(device, window); + + return .{ + .window = window.?, + .renderer = renderer.?, + .device = device, + .command_buffer = null, + }; +} + +pub fn destroy(self: *Self) void { + sdl.SDL_ReleaseWindowFromGPUDevice(self.device, self.window); + sdl.SDL_DestroyRenderer(self.renderer); + sdl.SDL_DestroyWindow(self.window); + + if (self.command_buffer != null) { + _ = sdl.SDL_CancelGPUCommandBuffer(self.command_buffer); + self.command_buffer = null; + } + sdl.SDL_DestroyGPUDevice(self.device); +} + +pub fn begin_draw(self: *Self) GameError!void { + self.command_buffer = sdl.SDL_AcquireGPUCommandBuffer(self.device) orelse return GameError.SdlError; +} + +pub fn end_draw(self: *Self) GameError!void { + defer self.command_buffer = null; + // Errors out? Perhaps its due to command buffer being empty at the moment + if (sdl.SDL_SubmitGPUCommandBuffer(self.command_buffer)) return GameError.SdlError; +} diff --git a/src/main.zig b/src/main.zig index aeebed5..09be2b3 100644 --- a/src/main.zig +++ b/src/main.zig @@ -1,8 +1,21 @@ const std = @import("std"); +const sdl = @import("sdl.zig"); const Game = @import("game.zig"); -pub fn main() !void { +pub fn run_game() !void { var game = try Game.init(); defer game.deinit(); try game.run(); } + +pub fn main() !void { + run_game() catch |err| { + switch (err) { + error.SdlError => { + std.debug.print("SDL Error:\n---\n{s}\n---\n", .{sdl.SDL_GetError()}); + }, + else => unreachable, + } + return err; + }; +} diff --git a/src/sdl.zig b/src/sdl.zig index 38679f2..09e95f1 100644 --- a/src/sdl.zig +++ b/src/sdl.zig @@ -1,4 +1,3 @@ pub usingnamespace @cImport({ @cInclude("SDL3/SDL.h"); }); -