diff options
| author | Dave Airlie <[email protected]> | 2020-04-21 15:28:38 +1000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2020-04-27 12:35:24 +1000 |
| commit | 565df656513acec8c2d5fe915c51b4b901265fa7 (patch) | |
| tree | 6fcd68f4488d1b50d618c63b8f0582f179f4c1c5 /src/gallium/drivers/llvmpipe | |
| parent | 024b5dfc1c3eb7255bbec975d57d4002458096bd (diff) | |
llvmpipe: clamp color storage for integer types.
If storing to an integer for lower bit size (i.e. 16-bit uint to
10-bit uint), we need to clamp to the maximum value not truncate.
Fixes:
dEQP-VK.api.copy_and_blit.core.blit_image.all_formats.color.r16_uint.a2b10g10r10_uint_pack32.optimal_optimal_nearest
Reviewed-by: Roland Scheidegger <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4574>
Diffstat (limited to 'src/gallium/drivers/llvmpipe')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index f55cfa9a85d..8826d499b47 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_fs.c +++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c @@ -1590,6 +1590,7 @@ convert_from_blend_type(struct gallivm_state *gallivm, for (j = 0; j < src_fmt->nr_channels; ++j) { unsigned mask = 0; unsigned sa = src_fmt->channel[j].shift; + unsigned sz_a = src_fmt->channel[j].size; #if UTIL_ARCH_LITTLE_ENDIAN unsigned from_lsb = j; #else @@ -1618,6 +1619,10 @@ convert_from_blend_type(struct gallivm_state *gallivm, if (src_type.norm) { chans[j] = scale_bits(gallivm, blend_type.width, src_fmt->channel[j].size, chans[j], src_type); + } else if (!src_type.floating && sz_a < blend_type.width) { + LLVMValueRef mask_val = lp_build_const_int_vec(gallivm, src_type, (1UL << sz_a) - 1); + LLVMValueRef mask = LLVMBuildICmp(builder, LLVMIntUGT, chans[j], mask_val, ""); + chans[j] = LLVMBuildSelect(builder, mask, mask_val, chans[j], ""); } /* Insert bits */ |