zig/mach
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

examples: use default values, gpu helper APIs

Browse source 
Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-08-17 01:42:27 -07:00
parent 7227e9a13f
commit edc3b5d60e
11 changed files with 251 additions and 630 deletions
Download patch file Download diff file Expand all files Collapse all files

96
examples/image-blur/main.zig
View file

@ -34,12 +34,7 @@ pub fn init(app: *App, core: *mach.Core) !void {
.size_min = .{ .width = 20, .height = 20 },
});
const blur_shader_module = core.device.createShaderModule(&.{
.next_in_chain = .{ .wgsl_descriptor = &.{
.source = @embedFile("blur.wgsl"),
} },
.label = "blur shader module",
});
const blur_shader_module = core.device.createShaderModuleWGSL("blur.wgsl", @embedFile("blur.wgsl"));
const blur_pipeline_descriptor = gpu.ComputePipeline.Descriptor{
.compute = gpu.ProgrammableStageDescriptor{
@ -50,54 +45,34 @@ pub fn init(app: *App, core: *mach.Core) !void {
const blur_pipeline = core.device.createComputePipeline(&blur_pipeline_descriptor);
const fullscreen_quad_vs_module = core.device.createShaderModule(&.{
.next_in_chain = .{ .wgsl_descriptor = &.{
.source = @embedFile("fullscreen_textured_quad.wgsl"),
} },
.label = "fullscreen quad vertex shader",
});
const fullscreen_quad_vs_module = core.device.createShaderModuleWGSL(
"fullscreen_textured_quad.wgsl",
@embedFile("fullscreen_textured_quad.wgsl"),
);
const fullscreen_quad_fs_module = core.device.createShaderModule(&.{
.next_in_chain = .{ .wgsl_descriptor = &.{
.source = @embedFile("fullscreen_textured_quad.wgsl"),
} },
.label = "fullscreen quad fragment shader",
});
const blend = gpu.BlendState{
.color = .{
.operation = .add,
.src_factor = .one,
.dst_factor = .zero,
},
.alpha = .{
.operation = .add,
.src_factor = .one,
.dst_factor = .zero,
},
};
const fullscreen_quad_fs_module = core.device.createShaderModuleWGSL(
"fullscreen_textured_quad.wgsl",
@embedFile("fullscreen_textured_quad.wgsl"),
);
const blend = gpu.BlendState{};
const color_target = gpu.ColorTargetState{
.format = core.swap_chain_format,
.blend = &blend,
.write_mask = gpu.ColorWriteMaskFlags.all,
};
const fragment_state = gpu.FragmentState{
const fragment_state = gpu.FragmentState.init(.{
.module = fullscreen_quad_fs_module,
.entry_point = "frag_main",
.target_count = 1,
.targets = &[_]gpu.ColorTargetState{color_target},
.constants = null,
};
.targets = &.{color_target},
});
const fullscreen_quad_pipeline_descriptor = gpu.RenderPipeline.Descriptor{
.layout = null,
.fragment = &fragment_state,
.vertex = .{
.module = fullscreen_quad_vs_module,
.entry_point = "vert_main",
.buffers = null,
},
};
@ -173,53 +148,48 @@ pub fn init(app: *App, core: *mach.Core) !void {
.usage = .{ .copy_dst = true, .uniform = true },
});
const compute_constants = core.device.createBindGroup(&gpu.BindGroup.Descriptor{
const compute_constants = core.device.createBindGroup(&gpu.BindGroup.Descriptor.init(.{
.layout = blur_pipeline.getBindGroupLayout(0),
.entry_count = 2,
.entries = &[_]gpu.BindGroup.Entry{
.entries = &.{
gpu.BindGroup.Entry.sampler(0, sampler),
gpu.BindGroup.Entry.buffer(1, blur_params_buffer, 0, 8),
},
});
}));
const compute_bind_group_0 = core.device.createBindGroup(&gpu.BindGroup.Descriptor{
const compute_bind_group_0 = core.device.createBindGroup(&gpu.BindGroup.Descriptor.init(.{
.layout = blur_pipeline.getBindGroupLayout(1),
.entry_count = 3,
.entries = &[_]gpu.BindGroup.Entry{
.entries = &.{
gpu.BindGroup.Entry.textureView(1, cube_texture.createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.textureView(2, textures[0].createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.buffer(3, flip[0], 0, 4),
},
});
}));
const compute_bind_group_1 = core.device.createBindGroup(&gpu.BindGroup.Descriptor{
const compute_bind_group_1 = core.device.createBindGroup(&gpu.BindGroup.Descriptor.init(.{
.layout = blur_pipeline.getBindGroupLayout(1),
.entry_count = 3,
.entries = &[_]gpu.BindGroup.Entry{
.entries = &.{
gpu.BindGroup.Entry.textureView(1, textures[0].createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.textureView(2, textures[1].createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.buffer(3, flip[1], 0, 4),
},
});
}));
const compute_bind_group_2 = core.device.createBindGroup(&gpu.BindGroup.Descriptor{
const compute_bind_group_2 = core.device.createBindGroup(&gpu.BindGroup.Descriptor.init(.{
.layout = blur_pipeline.getBindGroupLayout(1),
.entry_count = 3,
.entries = &[_]gpu.BindGroup.Entry{
.entries = &.{
gpu.BindGroup.Entry.textureView(1, textures[1].createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.textureView(2, textures[0].createView(&gpu.TextureView.Descriptor{})),
gpu.BindGroup.Entry.buffer(3, flip[0], 0, 4),
},
});
}));
const show_result_bind_group = core.device.createBindGroup(&gpu.BindGroup.Descriptor{
const show_result_bind_group = core.device.createBindGroup(&gpu.BindGroup.Descriptor.init(.{
.layout = fullscreen_quad_pipeline.getBindGroupLayout(0),
.entry_count = 2,
.entries = &[_]gpu.BindGroup.Entry{
.entries = &.{
gpu.BindGroup.Entry.sampler(0, sampler),
gpu.BindGroup.Entry.textureView(1, textures[1].createView(&gpu.TextureView.Descriptor{})),
},
});
}));
const blur_params_buffer_data = [_]u32{ filter_size, block_dimension };
queue.writeBuffer(blur_params_buffer, 0, &blur_params_buffer_data);
@ -268,18 +238,14 @@ pub fn update(app: *App, core: *mach.Core) !void {
const color_attachment = gpu.RenderPassColorAttachment{
.view = back_buffer_view,
.resolve_target = null,
.clear_value = std.mem.zeroes(gpu.Color),
.load_op = .clear,
.store_op = .store,
};
const render_pass_descriptor = gpu.RenderPassDescriptor{
.color_attachment_count = 1,
.color_attachments = &[_]gpu.RenderPassColorAttachment{
color_attachment,
},
};
const render_pass_descriptor = gpu.RenderPassDescriptor.init(.{
.color_attachments = &.{color_attachment},
});
const render_pass = encoder.beginRenderPass(&render_pass_descriptor);
render_pass.setPipeline(app.fullscreen_quad_pipeline);