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Merge #284

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284: Add start_slot parameter r=kvark a=danaugrs

A first attempt to fix https://github.com/gfx-rs/wgpu/issues/215.

Co-authored-by: Daniel Salvadori <danaugrs@gmail.com>
This commit is contained in:
bors[bot] 2019-08-15 20:28:29 +00:00 committed by GitHub
commit ab0ba193ce
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1 changed files with 3 additions and 5 deletions
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8
wgpu-native/src/command/render.rs
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@ -320,6 +320,7 @@ pub extern "C" fn wgpu_render_pass_set_index_buffer(
#[no_mangle]
pub extern "C" fn wgpu_render_pass_set_vertex_buffers(
pass_id: RenderPassId,
start_slot: u32,
buffers: *const BufferId,
offsets: *const BufferAddress,
length: usize,
@ -331,16 +332,13 @@ pub extern "C" fn wgpu_render_pass_set_vertex_buffers(
let offsets = unsafe { slice::from_raw_parts(offsets, length) };
let pass = &mut pass_guard[pass_id];
for (vbs, (&id, &offset)) in pass.vertex_state.inputs.iter_mut().zip(buffers.iter().zip(offsets)) {
for (vbs, (&id, &offset)) in pass.vertex_state.inputs[start_slot as usize ..].iter_mut().zip(buffers.iter().zip(offsets)) {
let buffer = pass.trackers
.buffers
.use_extend(&*buffer_guard, id, (), BufferUsage::VERTEX)
.unwrap();
vbs.total_size = buffer.size - offset;
}
for vbs in pass.vertex_state.inputs[length..].iter_mut() {
vbs.total_size = 0;
}
pass.vertex_state.update_limits();
@ -350,7 +348,7 @@ pub extern "C" fn wgpu_render_pass_set_vertex_buffers(
.zip(offsets.iter().cloned());
unsafe {
pass.raw.bind_vertex_buffers(0, buffers);
pass.raw.bind_vertex_buffers(start_slot, buffers);
}
}