duck-that-quacks/spacefarer
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Hi-dpi support, fsaa tweaks

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duck
2025-09-21 02:38:49 +05:00
parent 640e7bed86
commit 49267e629f
2 changed files with 57 additions and 31 deletions
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12
src/game.zig
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@@ -116,6 +116,18 @@ fn processEvents() void {
sdl.EVENT_MOUSE_WHEEL => {
Game.mouse.wheel += event.wheel.integer_y;
},
sdl.EVENT_WINDOW_RESIZED => {
if (event.window.data1 < 1 or event.window.data2 < 1) continue;
Graphics.window_width = @intCast(event.window.data1);
Graphics.window_height = @intCast(event.window.data2);
},
sdl.EVENT_WINDOW_PIXEL_SIZE_CHANGED => {
if (event.window.data1 < 1 or event.window.data2 < 1) continue;
Graphics.pixel_width = @intCast(event.window.data1);
Graphics.pixel_height = @intCast(event.window.data2);
},
else => {},
}
}

76
src/graphics.zig
View File

@@ -13,6 +13,7 @@ pub var device: *sdl.GPUDevice = undefined;
var command_buffer: ?*sdl.GPUCommandBuffer = null;
var render_pass: ?*sdl.GPURenderPass = null;
var render_target: ?*sdl.GPUTexture = null;
var render_fsaa: bool = undefined;
var shader_vert: *sdl.GPUShader = undefined;
var shader_frag: *sdl.GPUShader = undefined;
@@ -23,8 +24,12 @@ var pipeline: *sdl.GPUGraphicsPipeline = undefined;
pub var window_width: u32 = undefined;
pub var window_height: u32 = undefined;
pub var pixel_width: u32 = undefined;
pub var pixel_height: u32 = undefined;
var fsaa_scale: u32 = 4;
var fsaa_level: u32 = 3;
var render_width: u32 = undefined;
var render_height: u32 = undefined;
pub var camera: Camera = undefined;
@@ -45,8 +50,17 @@ pub fn create() void {
"",
1600,
900,
sdl.WINDOW_VULKAN | sdl.WINDOW_RESIZABLE,
sdl.WINDOW_VULKAN | sdl.WINDOW_RESIZABLE | sdl.WINDOW_HIGH_PIXEL_DENSITY,
) orelse err.sdl();
if (!sdl.GetWindowSizeInPixels(Graphics.window, @ptrCast(&Graphics.window_width), @ptrCast(&Graphics.window_height))) {
Graphics.window_width = 1600;
Graphics.window_height = 900;
}
const scale = sdl.GetWindowDisplayScale(Graphics.window);
Graphics.pixel_width = @intFromFloat(@round(scale * @as(f32, @floatFromInt(Graphics.window_width))));
Graphics.pixel_height = @intFromFloat(@round(scale * @as(f32, @floatFromInt(Graphics.window_height))));
Graphics.render_width = pixel_width;
Graphics.render_height = pixel_height;
// Device
Graphics.device = sdl.CreateGPUDevice(
@@ -81,19 +95,16 @@ pub fn create() void {
const target_format = sdl.GetGPUSwapchainTextureFormat(Graphics.device, Graphics.window);
if (target_format == sdl.GPU_TEXTUREFORMAT_INVALID) err.sdl();
// TODO: Clean
if (!sdl.GetWindowSizeInPixels(Graphics.window, @ptrCast(&Graphics.window_width), @ptrCast(&Graphics.window_height))) err.sdl();
Graphics.depth_texture = createTexture(
@as(u32, @intCast(Graphics.window_width)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.window_height)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.render_width)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.render_height)) * Graphics.fsaa_scale,
DEPTH_FORMAT,
sdl.GPU_TEXTUREUSAGE_DEPTH_STENCIL_TARGET,
1,
);
Graphics.fsaa_target = createTexture(
@as(u32, @intCast(Graphics.window_width)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.window_height)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.render_width)) * Graphics.fsaa_scale,
@as(u32, @intCast(Graphics.render_height)) * Graphics.fsaa_scale,
target_format,
sdl.GPU_TEXTUREUSAGE_COLOR_TARGET | sdl.GPU_TEXTUREUSAGE_SAMPLER,
fsaa_level,
@@ -177,20 +188,21 @@ pub fn beginDraw() bool {
// Window is probably hidden
if (Graphics.render_target == null or width == 0 or height == 0) return false;
if (width != Graphics.window_width or height != Graphics.window_height) {
Graphics.resetTextures(width, height);
Graphics.camera.aspect = @as(f32, @floatFromInt(width)) / @as(f32, @floatFromInt(height));
Graphics.window_width = width;
Graphics.window_height = height;
if (Graphics.render_width != Graphics.pixel_width or Graphics.render_height != Graphics.pixel_height) {
Graphics.render_width = Graphics.pixel_width;
Graphics.render_height = Graphics.pixel_height;
Graphics.resetTextures(Graphics.render_width, Graphics.render_height);
Graphics.camera.aspect = @as(f32, @floatFromInt(Graphics.render_width)) / @as(f32, @floatFromInt(Graphics.render_height));
}
Graphics.render_fsaa = Graphics.fsaa_level > 1;
Graphics.render_pass = sdl.BeginGPURenderPass(Graphics.command_buffer.?, &.{
.clear_color = .{ .r = 0.0, .g = 0.0, .b = 0.0, .a = 1.0 },
.cycle = false,
.load_op = sdl.GPU_LOADOP_CLEAR,
.store_op = sdl.GPU_STOREOP_STORE,
.mip_level = 0,
.texture = Graphics.fsaa_target,
.texture = if (Graphics.render_fsaa) Graphics.fsaa_target else Graphics.render_target,
}, 1, &.{
.clear_depth = 0.0,
.load_op = sdl.GPU_LOADOP_CLEAR,
@@ -216,7 +228,7 @@ pub fn clearDepth() void {
.load_op = sdl.GPU_LOADOP_LOAD,
.store_op = sdl.GPU_STOREOP_STORE,
.mip_level = 0,
.texture = Graphics.fsaa_target,
.texture = if (Graphics.render_fsaa) Graphics.fsaa_target else Graphics.render_target,
}, 1, &.{
.clear_depth = 0.0,
.load_op = sdl.GPU_LOADOP_CLEAR,
@@ -257,22 +269,24 @@ pub fn endDraw() void {
if (Graphics.render_pass) |pass| {
sdl.EndGPURenderPass(pass);
if (Graphics.fsaa_level > 1) sdl.GenerateMipmapsForGPUTexture(Graphics.command_buffer, Graphics.fsaa_target);
sdl.BlitGPUTexture(Graphics.command_buffer, &.{
.source = .{
.texture = Graphics.fsaa_target,
.w = Graphics.window_width,
.h = Graphics.window_height,
.mip_level = fsaa_level - 1,
},
.destination = .{
.texture = Graphics.render_target,
.w = Graphics.window_width,
.h = Graphics.window_height,
},
.load_op = sdl.GPU_LOADOP_DONT_CARE,
.filter = sdl.GPU_FILTER_NEAREST,
});
if (Graphics.render_fsaa) {
sdl.GenerateMipmapsForGPUTexture(Graphics.command_buffer, Graphics.fsaa_target);
sdl.BlitGPUTexture(Graphics.command_buffer, &.{
.source = .{
.texture = Graphics.fsaa_target,
.w = Graphics.render_width,
.h = Graphics.render_height,
.mip_level = fsaa_level - 1,
},
.destination = .{
.texture = Graphics.render_target,
.w = Graphics.render_width,
.h = Graphics.render_height,
},
.load_op = sdl.GPU_LOADOP_DONT_CARE,
.filter = sdl.GPU_FILTER_NEAREST,
});
}
}
if (!sdl.SubmitGPUCommandBuffer(Graphics.command_buffer)) err.sdl();
}