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feat(platform): implement OS window resizing

This commit is contained in:
Rekai Nyangadzayi Musuka 2023-05-12 01:47:15 -05:00
parent c677957725
commit a92598d17d
1 changed files with 16 additions and 6 deletions
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22
src/platform.zig
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@ -21,8 +21,8 @@ const GLsizei = gl.GLsizei;
const SDL_GLContext = *anyopaque; const SDL_GLContext = *anyopaque;
const Allocator = std.mem.Allocator; const Allocator = std.mem.Allocator;
const width = 1280; const Dimensions = struct { width: u32, height: u32 };
const height = 720; const default_dim: Dimensions = .{ .width = 1280, .height = 720 };
pub const sample_rate = 1 << 15; pub const sample_rate = 1 << 15;
pub const sample_format = SDL.AUDIO_U16; pub const sample_format = SDL.AUDIO_U16;
@ -50,9 +50,9 @@ pub const Gui = struct {
window_title, window_title,
SDL.SDL_WINDOWPOS_CENTERED, SDL.SDL_WINDOWPOS_CENTERED,
SDL.SDL_WINDOWPOS_CENTERED, SDL.SDL_WINDOWPOS_CENTERED,
width, default_dim.width,
height, default_dim.height,
SDL.SDL_WINDOW_OPENGL | SDL.SDL_WINDOW_SHOWN, SDL.SDL_WINDOW_OPENGL | SDL.SDL_WINDOW_SHOWN | SDL.SDL_WINDOW_RESIZABLE,
) orelse panic(); ) orelse panic();
const ctx = SDL.SDL_GL_CreateContext(window) orelse panic(); const ctx = SDL.SDL_GL_CreateContext(window) orelse panic();
@ -118,6 +118,8 @@ pub const Gui = struct {
const prog_id = try opengl_impl.compileShaders(); const prog_id = try opengl_impl.compileShaders();
defer gl.deleteProgram(prog_id); defer gl.deleteProgram(prog_id);
var win_dim: Dimensions = default_dim;
emu_loop: while (true) { emu_loop: while (true) {
// `quit` from RunOptions may be modified by the GDBSTUB thread, // `quit` from RunOptions may be modified by the GDBSTUB thread,
// so we want to recognize that it may change to `true` and exit the GUI thread // so we want to recognize that it may change to `true` and exit the GUI thread
@ -176,6 +178,14 @@ pub const Gui = struct {
cpu.bus.io.keyinput.store(keyinput.raw, .Monotonic); cpu.bus.io.keyinput.store(keyinput.raw, .Monotonic);
}, },
SDL.SDL_WINDOWEVENT => {
if (event.window.event == SDL.SDL_WINDOWEVENT_RESIZED) {
log.debug("window resized to: {}x{}", .{ event.window.data1, event.window.data2 });
win_dim.width = @intCast(u32, event.window.data1);
win_dim.height = @intCast(u32, event.window.data2);
}
},
else => {}, else => {},
} }
} }
@ -209,7 +219,7 @@ pub const Gui = struct {
gl.clearColor(0, 0, 0, 1.0); gl.clearColor(0, 0, 0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT); gl.clear(gl.COLOR_BUFFER_BIT);
zgui.backend.newFrame(width, height); zgui.backend.newFrame(@intToFloat(f32, win_dim.width), @intToFloat(f32, win_dim.height));
imgui.draw(&self.state, out_tex, cpu); imgui.draw(&self.state, out_tex, cpu);
zgui.backend.draw(); zgui.backend.draw();
} }