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webgpu cube works

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This commit is contained in:
luboslenco
2026-01-06 11:00:19 +01:00
parent cad77a1cee
commit de76354a84
3 changed files with 17 additions and 7 deletions
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base/sources/backends/webgpu_gpu.c
+4 -6
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@@ -491,8 +491,7 @@ static WGPUBindGroup get_descriptor_set(WGPUBuffer buffer) {
void gpu_set_constant_buffer(gpu_buffer_t *buffer, int offset, size_t size) {
WGPUBindGroup bind_group = get_descriptor_set(buffer->impl.buf);
// uint32_t offsets[1] = {(uint32_t)offset};
uint32_t offsets[1] = {(uint32_t)0};
uint32_t offsets[1] = {(uint32_t)offset};
wgpuRenderPassEncoderSetBindGroup(render_pass_encoder, 0, bind_group, 1, offsets);
wgpuBindGroupRelease(bind_group);
}
@@ -744,20 +743,19 @@ void gpu_constant_buffer_init(gpu_buffer_t *buffer, int size) {
buffer->count = size;
buffer->stride = 1;
// WGPUBufferDescriptor desc = {.size = size, .usage = WGPUBufferUsage_Uniform, .mappedAtCreation = true};
WGPUBufferDescriptor desc = {.size = size, .usage = WGPUBufferUsage_Uniform, .mappedAtCreation = false};
WGPUBufferDescriptor desc = {.size = size, .usage = WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, .mappedAtCreation = false};
buffer->impl.buf = wgpuDeviceCreateBuffer(device, &desc);
buffer->impl.mem = malloc(buffer->count * buffer->stride);
}
void gpu_constant_buffer_lock(gpu_buffer_t *buffer, int start, int count) {
// buffer->start = start;
buffer->impl.start = start;
buffer->count = count;
buffer->data = &buffer->impl.mem[start];
}
void gpu_constant_buffer_unlock(gpu_buffer_t *buffer) {
// wgpuBufferUnmap2(buffer->impl.buf, buffer->data, buffer->start, buffer->count);
wgpuQueueWriteBuffer(queue, buffer->impl.buf, buffer->impl.start, buffer->data, buffer->count);
buffer->data = NULL;
}