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radv: Use buffers_written mask when gathering XFB info.

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We need to enable these buffers regardless of whether or not the
shader actually writes any outputs to them, otherwise we break
XFB queries.

Cc: mesa-stable
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34317>
This commit is contained in:
Timur Kristóf 2025-04-01 12:35:30 +02:00 • committed by Marge Bot
parent 96d11d0f56
commit 15d0804670
1 changed files with 3 additions and 7 deletions
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10
src/amd/vulkan/radv_shader_info.c
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@ -375,14 +375,10 @@ gather_xfb_info(const nir_shader *nir, struct radv_shader_info *info)
assert(xfb->output_count <= MAX_SO_OUTPUTS);
so->num_outputs = xfb->output_count;
for (unsigned i = 0; i < xfb->output_count; i++) {
unsigned output_buffer = xfb->outputs[i].buffer;
unsigned stream = xfb->buffer_to_stream[xfb->outputs[i].buffer];
u_foreach_bit(output_buffer, xfb->buffers_written) {
unsigned stream = xfb->buffer_to_stream[output_buffer];
so->enabled_stream_buffers_mask |= (1 << output_buffer) << (stream * 4);
}
for (unsigned i = 0; i < NIR_MAX_XFB_BUFFERS; i++) {
so->strides[i] = xfb->buffers[i].stride / 4;
so->strides[output_buffer] = xfb->buffers[output_buffer].stride / 4;
}
}