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gpu: example: use Device.createRenderPipeline

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2022-03-11 19:58:36 -07:00 • committed by Stephen Gutekanst
parent 4e31e015a4
commit cc40004a5f
1 changed files with 35 additions and 36 deletions
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71
gpu/examples/main.zig
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@ -101,40 +101,39 @@ pub fn main() !void {
.dst_factor = .one,
},
};
var color_target = std.mem.zeroes(c.WGPUColorTargetState);
color_target.format = @enumToInt(window_data.swap_chain_format);
color_target.blend = @ptrCast(*const c.WGPUBlendState, &blend);
color_target.writeMask = c.WGPUColorWriteMask_All;
var fragment = std.mem.zeroes(c.WGPUFragmentState);
fragment.module = @ptrCast(c.WGPUShaderModule, fs_module.ptr);
fragment.entryPoint = "main";
fragment.targetCount = 1;
fragment.targets = &color_target;
var pipeline_descriptor = std.mem.zeroes(c.WGPURenderPipelineDescriptor);
pipeline_descriptor.fragment = &fragment;
// Other state
pipeline_descriptor.layout = null;
pipeline_descriptor.depthStencil = null;
pipeline_descriptor.vertex.module = @ptrCast(c.WGPUShaderModule, vs_module.ptr);
pipeline_descriptor.vertex.entryPoint = "main";
pipeline_descriptor.vertex.bufferCount = 0;
pipeline_descriptor.vertex.buffers = null;
pipeline_descriptor.multisample.count = 1;
pipeline_descriptor.multisample.mask = 0xFFFFFFFF;
pipeline_descriptor.multisample.alphaToCoverageEnabled = false;
pipeline_descriptor.primitive.frontFace = c.WGPUFrontFace_CCW;
pipeline_descriptor.primitive.cullMode = c.WGPUCullMode_None;
pipeline_descriptor.primitive.topology = c.WGPUPrimitiveTopology_TriangleList;
pipeline_descriptor.primitive.stripIndexFormat = c.WGPUIndexFormat_Undefined;
const pipeline = c.wgpuDeviceCreateRenderPipeline(@ptrCast(c.WGPUDevice, setup.device.ptr), &pipeline_descriptor);
const color_target = gpu.ColorTargetState{
.format = window_data.swap_chain_format,
.blend = &blend,
.write_mask = .all,
};
const fragment = gpu.FragmentState{
.module = fs_module,
.entry_point = "main",
.targets = &.{color_target},
.constants = null,
};
const pipeline_descriptor = gpu.RenderPipeline.Descriptor{
.fragment = &fragment,
.layout = null,
.depth_stencil = null,
.vertex = .{
.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 = .none,
},
};
const pipeline = setup.device.createRenderPipeline(&pipeline_descriptor);
vs_module.release();
fs_module.release();
@ -172,7 +171,7 @@ const WindowData = struct {
const FrameParams = struct {
window: glfw.Window,
device: gpu.Device,
pipeline: c.WGPURenderPipeline,
pipeline: gpu.RenderPipeline,
queue: gpu.Queue,
};
@ -209,7 +208,7 @@ fn frame(params: FrameParams) !void {
const encoder = c.wgpuDeviceCreateCommandEncoder(@ptrCast(c.WGPUDevice, params.device.ptr), null);
const pass = c.wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_info);
c.wgpuRenderPassEncoderSetPipeline(pass, params.pipeline);
c.wgpuRenderPassEncoderSetPipeline(pass, @ptrCast(c.WGPURenderPipeline, params.pipeline.ptr));
c.wgpuRenderPassEncoderDraw(pass, 3, 1, 0, 0);
c.wgpuRenderPassEncoderEnd(pass);
c.wgpuRenderPassEncoderRelease(pass);