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188 lines
6.6 KiB
C
188 lines
6.6 KiB
C
/*
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* Copyright 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "isl.h"
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#include "brw_compiler.h"
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bool
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isl_is_storage_image_format(enum isl_format format)
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{
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/* XXX: Maybe we should put this in the CSV? */
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switch (format) {
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case ISL_FORMAT_R32G32B32A32_UINT:
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case ISL_FORMAT_R32G32B32A32_SINT:
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case ISL_FORMAT_R32G32B32A32_FLOAT:
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case ISL_FORMAT_R32_UINT:
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case ISL_FORMAT_R32_SINT:
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case ISL_FORMAT_R32_FLOAT:
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case ISL_FORMAT_R16G16B16A16_UINT:
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case ISL_FORMAT_R16G16B16A16_SINT:
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case ISL_FORMAT_R16G16B16A16_FLOAT:
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case ISL_FORMAT_R32G32_UINT:
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case ISL_FORMAT_R32G32_SINT:
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case ISL_FORMAT_R32G32_FLOAT:
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case ISL_FORMAT_R8G8B8A8_UINT:
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case ISL_FORMAT_R8G8B8A8_SINT:
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case ISL_FORMAT_R16G16_UINT:
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case ISL_FORMAT_R16G16_SINT:
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case ISL_FORMAT_R16G16_FLOAT:
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case ISL_FORMAT_R8G8_UINT:
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case ISL_FORMAT_R8G8_SINT:
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case ISL_FORMAT_R16_UINT:
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case ISL_FORMAT_R16_FLOAT:
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case ISL_FORMAT_R16_SINT:
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case ISL_FORMAT_R8_UINT:
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case ISL_FORMAT_R8_SINT:
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case ISL_FORMAT_R10G10B10A2_UINT:
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case ISL_FORMAT_R10G10B10A2_UNORM:
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case ISL_FORMAT_R11G11B10_FLOAT:
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case ISL_FORMAT_R16G16B16A16_UNORM:
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case ISL_FORMAT_R16G16B16A16_SNORM:
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case ISL_FORMAT_R8G8B8A8_UNORM:
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case ISL_FORMAT_R8G8B8A8_SNORM:
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case ISL_FORMAT_R16G16_UNORM:
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case ISL_FORMAT_R16G16_SNORM:
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case ISL_FORMAT_R8G8_UNORM:
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case ISL_FORMAT_R8G8_SNORM:
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case ISL_FORMAT_R16_UNORM:
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case ISL_FORMAT_R16_SNORM:
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case ISL_FORMAT_R8_UNORM:
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case ISL_FORMAT_R8_SNORM:
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return true;
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default:
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return false;
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}
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}
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enum isl_format
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isl_lower_storage_image_format(const struct isl_device *dev,
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enum isl_format format)
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{
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switch (format) {
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/* These are never lowered. Up to BDW we'll have to fall back to untyped
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* surface access for 128bpp formats.
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*/
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case ISL_FORMAT_R32G32B32A32_UINT:
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case ISL_FORMAT_R32G32B32A32_SINT:
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case ISL_FORMAT_R32G32B32A32_FLOAT:
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case ISL_FORMAT_R32_UINT:
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case ISL_FORMAT_R32_SINT:
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case ISL_FORMAT_R32_FLOAT:
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return format;
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/* From HSW to BDW the only 64bpp format supported for typed access is
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* RGBA_UINT16. IVB falls back to untyped.
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*/
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case ISL_FORMAT_R16G16B16A16_UINT:
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case ISL_FORMAT_R16G16B16A16_SINT:
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case ISL_FORMAT_R16G16B16A16_FLOAT:
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case ISL_FORMAT_R32G32_UINT:
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case ISL_FORMAT_R32G32_SINT:
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case ISL_FORMAT_R32G32_FLOAT:
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return (ISL_DEV_GEN(dev) >= 9 ? format :
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ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R16G16B16A16_UINT :
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ISL_FORMAT_R32G32_UINT);
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/* Up to BDW no SINT or FLOAT formats of less than 32 bits per component
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* are supported. IVB doesn't support formats with more than one component
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* for typed access. For 8 and 16 bpp formats IVB relies on the
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* undocumented behavior that typed reads from R_UINT8 and R_UINT16
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* surfaces actually do a 32-bit misaligned read. The alternative would be
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* to use two surface state entries with different formats for each image,
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* one for reading (using R_UINT32) and another one for writing (using
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* R_UINT8 or R_UINT16), but that would complicate the shaders we generate
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* even more.
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*/
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case ISL_FORMAT_R8G8B8A8_UINT:
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case ISL_FORMAT_R8G8B8A8_SINT:
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return (ISL_DEV_GEN(dev) >= 9 ? format :
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ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R8G8B8A8_UINT : ISL_FORMAT_R32_UINT);
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case ISL_FORMAT_R16G16_UINT:
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case ISL_FORMAT_R16G16_SINT:
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case ISL_FORMAT_R16G16_FLOAT:
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return (ISL_DEV_GEN(dev) >= 9 ? format :
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ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R16G16_UINT : ISL_FORMAT_R32_UINT);
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case ISL_FORMAT_R8G8_UINT:
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case ISL_FORMAT_R8G8_SINT:
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return (ISL_DEV_GEN(dev) >= 9 ? format :
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ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R8G8_UINT : ISL_FORMAT_R16_UINT);
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case ISL_FORMAT_R16_UINT:
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case ISL_FORMAT_R16_FLOAT:
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case ISL_FORMAT_R16_SINT:
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return (ISL_DEV_GEN(dev) >= 9 ? format : ISL_FORMAT_R16_UINT);
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case ISL_FORMAT_R8_UINT:
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case ISL_FORMAT_R8_SINT:
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return (ISL_DEV_GEN(dev) >= 9 ? format : ISL_FORMAT_R8_UINT);
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/* Neither the 2/10/10/10 nor the 11/11/10 packed formats are supported
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* by the hardware.
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*/
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case ISL_FORMAT_R10G10B10A2_UINT:
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case ISL_FORMAT_R10G10B10A2_UNORM:
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case ISL_FORMAT_R11G11B10_FLOAT:
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return ISL_FORMAT_R32_UINT;
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/* No normalized fixed-point formats are supported by the hardware. */
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case ISL_FORMAT_R16G16B16A16_UNORM:
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case ISL_FORMAT_R16G16B16A16_SNORM:
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return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R16G16B16A16_UINT :
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ISL_FORMAT_R32G32_UINT);
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case ISL_FORMAT_R8G8B8A8_UNORM:
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case ISL_FORMAT_R8G8B8A8_SNORM:
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return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R8G8B8A8_UINT : ISL_FORMAT_R32_UINT);
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case ISL_FORMAT_R16G16_UNORM:
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case ISL_FORMAT_R16G16_SNORM:
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return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R16G16_UINT : ISL_FORMAT_R32_UINT);
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case ISL_FORMAT_R8G8_UNORM:
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case ISL_FORMAT_R8G8_SNORM:
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return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ?
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ISL_FORMAT_R8G8_UINT : ISL_FORMAT_R16_UINT);
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case ISL_FORMAT_R16_UNORM:
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case ISL_FORMAT_R16_SNORM:
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return ISL_FORMAT_R16_UINT;
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case ISL_FORMAT_R8_UNORM:
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case ISL_FORMAT_R8_SNORM:
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return ISL_FORMAT_R8_UINT;
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default:
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assert(!"Unknown image format");
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return ISL_FORMAT_UNSUPPORTED;
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}
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}
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