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r600: fix rv770 clamp to max_texel_buffer_elements

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This change fixes the clamp to max_texel_buffer_elements
issue related to rv770 and older gpus.

Here are the tests fixed on rv770:
spec/arb_texture_buffer_object/texture-buffer-size-clamp/r8ui_texture_buffer_size_via_sampler: fail pass
spec/arb_texture_buffer_object/texture-buffer-size-clamp/rg8ui_texture_buffer_size_via_sampler: fail pass
spec/arb_texture_buffer_object/texture-buffer-size-clamp/rgba8ui_texture_buffer_size_via_sampler: fail pass

Fixes: 1a441ad5cb ("r600: clamp to max_texel_buffer_elements")
Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39385>
This commit is contained in:
Patrick Lerda 2026-01-19 13:11:28 +01:00 • committed by Marge Bot
parent 2ed761021f
commit afcead9158
1 changed files with 5 additions and 2 deletions
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7
src/gallium/drivers/r600/r600_state_common.c
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@ -1466,8 +1466,11 @@ static void r600_setup_buffer_constants(struct r600_context *rctx, int shader_ty
} else
constants[offset + 4] = 0;
constants[offset + 5] = samplers->views.views[i]->base.u.buf.size /
util_format_get_blocksize(samplers->views.views[i]->base.format);
constants[offset + 5] = MIN2(util_format_get_blocksize(samplers->views.views[i]->base.format) *
rctx->screen->b.b.caps.max_texel_buffer_elements,
samplers->views.views[i]->base.u.buf.size) /
util_format_get_blocksize(samplers->views.views[i]->base.format);
constants[offset + 6] = samplers->views.views[i]->base.texture->array_size / 6;
}
}