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Diffstat (limited to 'src/isl/isl_image.c')
| -rw-r--r-- | src/isl/isl_image.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/isl/isl_image.c b/src/isl/isl_image.c new file mode 100644 index 00000000000..773160432b9 --- /dev/null +++ b/src/isl/isl_image.c @@ -0,0 +1,188 @@ +/* + * Copyright 2015 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "isl.h" +#include "brw_compiler.h" + +bool +isl_is_storage_image_format(enum isl_format format) +{ + /* XXX: Maybe we should put this in the CSV? */ + + switch (format) { + case ISL_FORMAT_R32G32B32A32_UINT: + case ISL_FORMAT_R32G32B32A32_SINT: + case ISL_FORMAT_R32G32B32A32_FLOAT: + case ISL_FORMAT_R32_UINT: + case ISL_FORMAT_R32_SINT: + case ISL_FORMAT_R32_FLOAT: + case ISL_FORMAT_R16G16B16A16_UINT: + case ISL_FORMAT_R16G16B16A16_SINT: + case ISL_FORMAT_R16G16B16A16_FLOAT: + case ISL_FORMAT_R32G32_UINT: + case ISL_FORMAT_R32G32_SINT: + case ISL_FORMAT_R32G32_FLOAT: + case ISL_FORMAT_R8G8B8A8_UINT: + case ISL_FORMAT_R8G8B8A8_SINT: + case ISL_FORMAT_R16G16_UINT: + case ISL_FORMAT_R16G16_SINT: + case ISL_FORMAT_R16G16_FLOAT: + case ISL_FORMAT_R8G8_UINT: + case ISL_FORMAT_R8G8_SINT: + case ISL_FORMAT_R16_UINT: + case ISL_FORMAT_R16_FLOAT: + case ISL_FORMAT_R16_SINT: + case ISL_FORMAT_R8_UINT: + case ISL_FORMAT_R8_SINT: + case ISL_FORMAT_R10G10B10A2_UINT: + case ISL_FORMAT_R10G10B10A2_UNORM: + case ISL_FORMAT_R11G11B10_FLOAT: + case ISL_FORMAT_R16G16B16A16_UNORM: + case ISL_FORMAT_R16G16B16A16_SNORM: + case ISL_FORMAT_R8G8B8A8_UNORM: + case ISL_FORMAT_R8G8B8A8_SNORM: + case ISL_FORMAT_R16G16_UNORM: + case ISL_FORMAT_R16G16_SNORM: + case ISL_FORMAT_R8G8_UNORM: + case ISL_FORMAT_R8G8_SNORM: + case ISL_FORMAT_R16_UNORM: + case ISL_FORMAT_R16_SNORM: + case ISL_FORMAT_R8_UNORM: + case ISL_FORMAT_R8_SNORM: + return true; + default: + return false; + } +} + +enum isl_format +isl_lower_storage_image_format(const struct isl_device *dev, + enum isl_format format) +{ + switch (format) { + /* These are never lowered. Up to BDW we'll have to fall back to untyped + * surface access for 128bpp formats. + */ + case ISL_FORMAT_R32G32B32A32_UINT: + case ISL_FORMAT_R32G32B32A32_SINT: + case ISL_FORMAT_R32G32B32A32_FLOAT: + case ISL_FORMAT_R32_UINT: + case ISL_FORMAT_R32_SINT: + case ISL_FORMAT_R32_FLOAT: + return format; + + /* From HSW to BDW the only 64bpp format supported for typed access is + * RGBA_UINT16. IVB falls back to untyped. + */ + case ISL_FORMAT_R16G16B16A16_UINT: + case ISL_FORMAT_R16G16B16A16_SINT: + case ISL_FORMAT_R16G16B16A16_FLOAT: + case ISL_FORMAT_R32G32_UINT: + case ISL_FORMAT_R32G32_SINT: + case ISL_FORMAT_R32G32_FLOAT: + return (ISL_DEV_GEN(dev) >= 9 ? format : + ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R16G16B16A16_UINT : + ISL_FORMAT_R32G32_UINT); + + /* Up to BDW no SINT or FLOAT formats of less than 32 bits per component + * are supported. IVB doesn't support formats with more than one component + * for typed access. For 8 and 16 bpp formats IVB relies on the + * undocumented behavior that typed reads from R_UINT8 and R_UINT16 + * surfaces actually do a 32-bit misaligned read. The alternative would be + * to use two surface state entries with different formats for each image, + * one for reading (using R_UINT32) and another one for writing (using + * R_UINT8 or R_UINT16), but that would complicate the shaders we generate + * even more. + */ + case ISL_FORMAT_R8G8B8A8_UINT: + case ISL_FORMAT_R8G8B8A8_SINT: + return (ISL_DEV_GEN(dev) >= 9 ? format : + ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R8G8B8A8_UINT : ISL_FORMAT_R32_UINT); + + case ISL_FORMAT_R16G16_UINT: + case ISL_FORMAT_R16G16_SINT: + case ISL_FORMAT_R16G16_FLOAT: + return (ISL_DEV_GEN(dev) >= 9 ? format : + ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R16G16_UINT : ISL_FORMAT_R32_UINT); + + case ISL_FORMAT_R8G8_UINT: + case ISL_FORMAT_R8G8_SINT: + return (ISL_DEV_GEN(dev) >= 9 ? format : + ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R8G8_UINT : ISL_FORMAT_R16_UINT); + + case ISL_FORMAT_R16_UINT: + case ISL_FORMAT_R16_FLOAT: + case ISL_FORMAT_R16_SINT: + return (ISL_DEV_GEN(dev) >= 9 ? format : ISL_FORMAT_R16_UINT); + + case ISL_FORMAT_R8_UINT: + case ISL_FORMAT_R8_SINT: + return (ISL_DEV_GEN(dev) >= 9 ? format : ISL_FORMAT_R8_UINT); + + /* Neither the 2/10/10/10 nor the 11/11/10 packed formats are supported + * by the hardware. + */ + case ISL_FORMAT_R10G10B10A2_UINT: + case ISL_FORMAT_R10G10B10A2_UNORM: + case ISL_FORMAT_R11G11B10_FLOAT: + return ISL_FORMAT_R32_UINT; + + /* No normalized fixed-point formats are supported by the hardware. */ + case ISL_FORMAT_R16G16B16A16_UNORM: + case ISL_FORMAT_R16G16B16A16_SNORM: + return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R16G16B16A16_UINT : + ISL_FORMAT_R32G32_UINT); + + case ISL_FORMAT_R8G8B8A8_UNORM: + case ISL_FORMAT_R8G8B8A8_SNORM: + return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R8G8B8A8_UINT : ISL_FORMAT_R32_UINT); + + case ISL_FORMAT_R16G16_UNORM: + case ISL_FORMAT_R16G16_SNORM: + return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R16G16_UINT : ISL_FORMAT_R32_UINT); + + case ISL_FORMAT_R8G8_UNORM: + case ISL_FORMAT_R8G8_SNORM: + return (ISL_DEV_GEN(dev) >= 8 || dev->info->is_haswell ? + ISL_FORMAT_R8G8_UINT : ISL_FORMAT_R16_UINT); + + case ISL_FORMAT_R16_UNORM: + case ISL_FORMAT_R16_SNORM: + return ISL_FORMAT_R16_UINT; + + case ISL_FORMAT_R8_UNORM: + case ISL_FORMAT_R8_SNORM: + return ISL_FORMAT_R8_UINT; + + default: + assert(!"Unknown image format"); + return ISL_FORMAT_UNSUPPORTED; + } +} |