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

61
examples/triangle/main.zig
View file

@ -8,64 +8,26 @@ pipeline: *gpu.RenderPipeline,
queue: *gpu.Queue,
pub fn init(app: *App, core: *mach.Core) !void {
const vs_module = core.device.createShaderModule(&.{
.next_in_chain = .{ .wgsl_descriptor = &.{
.source = @embedFile("vert.wgsl"),
} },
.label = "my vertex shader",
});
const fs_module = core.device.createShaderModule(&.{
.next_in_chain = .{ .wgsl_descriptor = &.{
.source = @embedFile("frag.wgsl"),
} },
.label = "my fragment shader",
});
const vs_module = core.device.createShaderModuleWGSL("vert.wgsl", @embedFile("vert.wgsl"));
const fs_module = core.device.createShaderModuleWGSL("frag.wgsl", @embedFile("frag.wgsl"));
// Fragment state
const blend = gpu.BlendState{
.color = .{
.operation = .add,
.src_factor = .one,
.dst_factor = .zero,
},
.alpha = .{
.operation = .add,
.src_factor = .one,
.dst_factor = .zero,
},
};
const blend = gpu.BlendState{};
const color_target = gpu.ColorTargetState{
.format = core.swap_chain_format,
.blend = &blend,
.write_mask = gpu.ColorWriteMaskFlags.all,
};
const fragment = gpu.FragmentState{
const fragment = gpu.FragmentState.init(.{
.module = fs_module,
.entry_point = "main",
.target_count = 1,
.targets = &[_]gpu.ColorTargetState{color_target},
.constants = null,
};
.targets = &.{color_target},
});
const pipeline_descriptor = gpu.RenderPipeline.Descriptor{
.fragment = &fragment,
.layout = null,
.depth_stencil = null,
.vertex = .{
.vertex = gpu.VertexState{
.module = vs_module,
.entry_point = "main",
.buffers = null,
},
.multisample = .{
.count = 1,
.mask = 0xFFFFFFFF,
.alpha_to_coverage_enabled = false,
},
.primitive = .{
.front_face = .ccw,
.cull_mode = .none,
.topology = .triangle_list,
.strip_index_format = .undef,
},
};
@ -82,18 +44,15 @@ pub fn update(app: *App, core: *mach.Core) !void {
const back_buffer_view = core.swap_chain.?.getCurrentTextureView();
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 encoder = core.device.createCommandEncoder(null);
const render_pass_info = gpu.RenderPassDescriptor{
.color_attachment_count = 1,
.color_attachments = &[_]gpu.RenderPassColorAttachment{color_attachment},
.depth_stencil_attachment = null,
};
const render_pass_info = gpu.RenderPassDescriptor.init(.{
.color_attachments = &.{color_attachment},
});
const pass = encoder.beginRenderPass(&render_pass_info);
pass.setPipeline(app.pipeline);
pass.draw(3, 1, 0, 0);