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gpu: use Device.createShaderModule in example

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2022-03-08 22:40:14 -07:00 • committed by Stephen Gutekanst
parent e9ea1e2531
commit 19277b7282
1 changed files with 11 additions and 21 deletions
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32
gpu/examples/main.zig
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@ -21,7 +21,7 @@ pub fn main() !void {
};
setup.window.setUserPointer(window_data);
// If targetting OpenGL, we can't use the newer WGPUSurface API. Instead, we need to use the
// If targeting OpenGL, we can't use the newer WGPUSurface API. Instead, we need to use the
// older Dawn-specific API. https://bugs.chromium.org/p/dawn/issues/detail?id=269&q=surface&can=2
const use_legacy_api = setup.backend_type == c.WGPUBackendType_OpenGL or setup.backend_type == c.WGPUBackendType_OpenGLES;
var descriptor: c.WGPUSwapChainDescriptor = undefined;
@ -75,30 +75,20 @@ pub fn main() !void {
\\ return vec4<f32>(pos[VertexIndex], 0.0, 1.0);
\\ }
;
var vs_wgsl_descriptor = try allocator.create(c.WGPUShaderModuleWGSLDescriptor);
vs_wgsl_descriptor.chain.next = null;
vs_wgsl_descriptor.chain.sType = c.WGPUSType_ShaderModuleWGSLDescriptor;
vs_wgsl_descriptor.source = vs;
const vs_shader_descriptor = c.WGPUShaderModuleDescriptor{
.nextInChain = @ptrCast(*const c.WGPUChainedStruct, vs_wgsl_descriptor),
const vs_module = setup.device.createShaderModule(&.{
.label = "my vertex shader",
};
const vs_module = c.wgpuDeviceCreateShaderModule(@ptrCast(c.WGPUDevice, setup.device.ptr), &vs_shader_descriptor);
.code = .{ .wgsl = vs },
});
const fs =
\\ @stage(fragment) fn main() -> @location(0) vec4<f32> {
\\ return vec4<f32>(1.0, 0.0, 0.0, 1.0);
\\ }
;
var fs_wgsl_descriptor = try allocator.create(c.WGPUShaderModuleWGSLDescriptor);
fs_wgsl_descriptor.chain.next = null;
fs_wgsl_descriptor.chain.sType = c.WGPUSType_ShaderModuleWGSLDescriptor;
fs_wgsl_descriptor.source = fs;
const fs_shader_descriptor = c.WGPUShaderModuleDescriptor{
.nextInChain = @ptrCast(*const c.WGPUChainedStruct, fs_wgsl_descriptor),
const fs_module = setup.device.createShaderModule(&.{
.label = "my fragment shader",
};
const fs_module = c.wgpuDeviceCreateShaderModule(@ptrCast(c.WGPUDevice, setup.device.ptr), &fs_shader_descriptor);
.code = .{ .wgsl = fs },
});
// Fragment state
var blend = std.mem.zeroes(c.WGPUBlendState);
@ -115,7 +105,7 @@ pub fn main() !void {
color_target.writeMask = c.WGPUColorWriteMask_All;
var fragment = std.mem.zeroes(c.WGPUFragmentState);
fragment.module = fs_module;
fragment.module = @ptrCast(c.WGPUShaderModule, fs_module.ptr);
fragment.entryPoint = "main";
fragment.targetCount = 1;
fragment.targets = &color_target;
@ -127,7 +117,7 @@ pub fn main() !void {
pipeline_descriptor.layout = null;
pipeline_descriptor.depthStencil = null;
pipeline_descriptor.vertex.module = vs_module;
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;
@ -143,8 +133,8 @@ pub fn main() !void {
const pipeline = c.wgpuDeviceCreateRenderPipeline(@ptrCast(c.WGPUDevice, setup.device.ptr), &pipeline_descriptor);
c.wgpuShaderModuleRelease(vs_module);
c.wgpuShaderModuleRelease(fs_module);
c.wgpuShaderModuleRelease(@ptrCast(c.WGPUShaderModule, vs_module.ptr));
c.wgpuShaderModuleRelease(@ptrCast(c.WGPUShaderModule, fs_module.ptr));
// Reconfigure the swap chain with the new framebuffer width/height, otherwise e.g. the Vulkan
// device would be lost after a resize.