[Mesa-dev] [PATCH 5/7] isl: Add per-gen format introspection

Eduardo Lima Mitev elima at igalia.com
Sat May 21 07:01:30 UTC 2016


On 05/21/2016 03:12 AM, Jason Ekstrand wrote:
> This is just a copy-and-paste from brw_surface_formats.c.  For the
> supports_vertex_fetch function, we do a bit more work so that it properly
> handles Bay Trail.
>

I notice that some values in the table are changed compared to
brw_surface_formats. IMHO, it would have been better to split the patch
in one clean copy&paste, then another adding the modifications.

Acked-by: Eduardo Lima Mitev <elima at igalia.com>

I didn't check each and every modified value in the table, so not a
proper review here.

There is a small comment below.

> ---
>  src/intel/isl/isl.h        |  13 ++
>  src/intel/isl/isl_format.c | 386 +++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 399 insertions(+)
> 
> diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h
> index f8a2f37..daa5428 100644
> --- a/src/intel/isl/isl.h
> +++ b/src/intel/isl/isl.h
> @@ -863,6 +863,19 @@ isl_format_get_name(enum isl_format fmt)
>     return isl_format_layouts[fmt].name;
>  }
>  
> +bool isl_format_supports_rendering(const struct brw_device_info *devinfo,
> +                                   enum isl_format format);
> +bool isl_format_supports_alpha_blending(const struct brw_device_info *devinfo,
> +                                        enum isl_format format);
> +bool isl_format_supports_sampling(const struct brw_device_info *devinfo,
> +                                  enum isl_format format);
> +bool isl_format_supports_filtering(const struct brw_device_info *devinfo,
> +                                   enum isl_format format);
> +bool isl_format_supports_vertex_fetch(const struct brw_device_info *devinfo,
> +                                      enum isl_format format);
> +bool isl_format_supports_lossless_compression(const struct brw_device_info *devinfo,
> +                                              enum isl_format format);
> +
>  bool isl_format_has_unorm_channel(enum isl_format fmt) ATTRIBUTE_CONST;
>  bool isl_format_has_snorm_channel(enum isl_format fmt) ATTRIBUTE_CONST;
>  bool isl_format_has_ufloat_channel(enum isl_format fmt) ATTRIBUTE_CONST;
> diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c
> index 4d02b1d..2664548 100644
> --- a/src/intel/isl/isl_format.c
> +++ b/src/intel/isl/isl_format.c
> @@ -24,6 +24,392 @@
>  #include <assert.h>
>  
>  #include "isl.h"
> +#include "brw_device_info.h"
> +
> +struct surface_format_info {
> +   bool exists;
> +   uint8_t sampling;
> +   uint8_t filtering;
> +   uint8_t shadow_compare;
> +   uint8_t chroma_key;
> +   uint8_t render_target;
> +   uint8_t alpha_blend;
> +   uint8_t input_vb;
> +   uint8_t streamed_output_vb;
> +   uint8_t color_processing;
> +   uint8_t lossless_compression;
> +};
> +
> +/* This macro allows us to write the table almost as it appears in the PRM,
> + * while restructuring it to turn it into the C code we want.
> + */
> +#define SF(sampl, filt, shad, ck, rt, ab, vb, so, color, ccs_e, sf) \
> +   [ISL_FORMAT_##sf] = { true, sampl, filt, shad, ck, rt, ab, vb, so, color, ccs_e},
> +
> +#define Y 0
> +#define x 255
> +/**
> + * This is the table of support for surface (texture, renderbuffer, and vertex
> + * buffer, but not depthbuffer) formats across the various hardware generations.
> + *
> + * The table is formatted to match the documentation, except that the docs have
> + * this ridiculous mapping of Y[*+~^#&] for "supported on DevWhatever".  To put
> + * it in our table, here's the mapping:
> + *
> + * Y*: 45
> + * Y+: 45 (g45/gm45)
> + * Y~: 50 (gen5)
> + * Y^: 60 (gen6)
> + * Y#: 70 (gen7)
> + *
> + * The abbreviations in the header below are:
> + * smpl  - Sampling Engine
> + * filt  - Sampling Engine Filtering
> + * shad  - Sampling Engine Shadow Map
> + * CK    - Sampling Engine Chroma Key
> + * RT    - Render Target
> + * AB    - Alpha Blend Render Target
> + * VB    - Input Vertex Buffer
> + * SO    - Steamed Output Vertex Buffers (transform feedback)
> + * color - Color Processing
> + * ccs_e - Lossless Compression Support (gen9+ only)
> + * sf    - Surface Format
> + *
> + * See page 88 of the Sandybridge PRM VOL4_Part1 PDF.
> + *
> + * As of Ivybridge, the columns are no longer in that table and the
> + * information can be found spread across:
> + *
> + * - VOL2_Part1 section 2.5.11 Format Conversion (vertex fetch).
> + * - VOL4_Part1 section 2.12.2.1.2 Sampler Output Channel Mapping.
> + * - VOL4_Part1 section 3.9.11 Render Target Write.
> + * - Render Target Surface Types [SKL+]
> + */
> +static const struct surface_format_info format_info[] = {
> +/* smpl filt shad CK  RT  AB  VB  SO  color ccs_e */
> +   SF( Y, 50,  x,  x,  Y,  Y,  Y,  Y,  x,   90,   R32G32B32A32_FLOAT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32G32B32A32_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32G32B32A32_UINT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32A32_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32A32_SNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R64G64_FLOAT)
> +   SF( Y, 50,  x,  x,  x,  x,  x,  x,  x,    x,   R32G32B32X32_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32A32_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32A32_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R32G32B32A32_SFIXED)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R64G64_PASSTHRU)
> +   SF( Y, 50,  x,  x,  x,  x,  Y,  Y,  x,    x,   R32G32B32_FLOAT)
> +   SF( Y,  x,  x,  x,  x,  x,  Y,  Y,  x,    x,   R32G32B32_SINT)
> +   SF( Y,  x,  x,  x,  x,  x,  Y,  Y,  x,    x,   R32G32B32_UINT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32_SNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32B32_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R32G32B32_SFIXED)
> +   SF( Y,  Y,  x,  x,  Y, 45,  Y,  x, 60,   90,   R16G16B16A16_UNORM)
> +   SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x,   90,   R16G16B16A16_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R16G16B16A16_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R16G16B16A16_UINT)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x,   90,   R16G16B16A16_FLOAT)
> +   SF( Y, 50,  x,  x,  Y,  Y,  Y,  Y,  x,   90,   R32G32_FLOAT)
> +   SF( Y, 70,  x,  x,  Y,  Y,  Y,  Y,  x,    x,   R32G32_FLOAT_LD)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32G32_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32G32_UINT)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   R32_FLOAT_X8X24_TYPELESS)
> +   SF( Y,  x,  x,  x,  x,  x,  x,  x,  x,    x,   X32_TYPELESS_G8X24_UINT)
> +   SF( Y, 50,  x,  x,  x,  x,  x,  x,  x,    x,   L32A32_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32_SNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R64_FLOAT)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   R16G16B16X16_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,   90,   R16G16B16X16_FLOAT)
> +   SF( Y, 50,  x,  x,  x,  x,  x,  x,  x,    x,   A32X32_FLOAT)
> +   SF( Y, 50,  x,  x,  x,  x,  x,  x,  x,    x,   L32X32_FLOAT)
> +   SF( Y, 50,  x,  x,  x,  x,  x,  x,  x,    x,   I32X32_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16A16_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16A16_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32G32_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R32G32_SFIXED)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R64_PASSTHRU)
> +   SF( Y,  Y,  x,  Y,  Y,  Y,  Y,  x, 60,   90,   B8G8R8A8_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x,    x,   B8G8R8A8_UNORM_SRGB)
> +/* smpl filt shad CK  RT  AB  VB  SO  color ccs_e */
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x, 60,    x,   R10G10B10A2_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x, 60,    x,   R10G10B10A2_UNORM_SRGB)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R10G10B10A2_UINT)
> +   SF( Y,  Y,  x,  x,  x,  x,  Y,  x,  x,    x,   R10G10B10_SNORM_A2_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x, 60,   90,   R8G8B8A8_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60,    x,   R8G8B8A8_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x,   90,   R8G8B8A8_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R8G8B8A8_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R8G8B8A8_UINT)
> +   SF( Y,  Y,  x,  x,  Y, 45,  Y,  x,  x,   90,   R16G16_UNORM)
> +   SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x,   90,   R16G16_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R16G16_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,   90,   R16G16_UINT)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x,   90,   R16G16_FLOAT)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60,    x,   B10G10R10A2_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x, 60,    x,   B10G10R10A2_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x,    x,   R11G11B10_FLOAT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  Y,  x,   90,   R32_UINT)
> +   SF( Y, 50,  Y,  x,  Y,  Y,  Y,  Y,  x,   90,   R32_FLOAT)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   R24_UNORM_X8_TYPELESS)
> +   SF( Y,  x,  x,  x,  x,  x,  x,  x,  x,    x,   X24_TYPELESS_G8_UINT)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   L16A16_UNORM)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   I24X8_UNORM)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   L24X8_UNORM)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   A24X8_UNORM)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   I32_FLOAT)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   L32_FLOAT)
> +   SF( Y, 50,  Y,  x,  x,  x,  x,  x,  x,    x,   A32_FLOAT)
> +   SF( Y,  Y,  x,  Y, 80, 80,  x,  x, 60,   90,   B8G8R8X8_UNORM)
> +   SF( Y,  Y,  x,  x, 80, 80,  x,  x,  x,    x,   B8G8R8X8_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   R8G8B8X8_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   R8G8B8X8_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   R9G9B9E5_SHAREDEXP)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   B10G10R10X2_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   L16A16_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32_SNORM)
> +/* smpl filt shad CK  RT  AB  VB  SO  color ccs_e */
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R10G10B10X2_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8A8_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8A8_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R32_USCALED)
> +   SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x,    x,   B5G6R5_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x,    x,   B5G6R5_UNORM_SRGB)
> +   SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x,    x,   B5G5R5A1_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x,    x,   B5G5R5A1_UNORM_SRGB)
> +   SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x,    x,   B4G4R4A4_UNORM)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  x,  x,  x,    x,   B4G4R4A4_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x,    x,   R8G8_UNORM)
> +   SF( Y,  Y,  x,  Y,  Y, 60,  Y,  x,  x,    x,   R8G8_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R8G8_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R8G8_UINT)
> +   SF( Y,  Y,  Y,  x,  Y, 45,  Y,  x, 70,    x,   R16_UNORM)
> +   SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x,    x,   R16_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R16_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R16_UINT)
> +   SF( Y,  Y,  x,  x,  Y,  Y,  Y,  x,  x,    x,   R16_FLOAT)
> +   SF(50, 50,  x,  x,  x,  x,  x,  x,  x,    x,   A8P8_UNORM_PALETTE0)
> +   SF(50, 50,  x,  x,  x,  x,  x,  x,  x,    x,   A8P8_UNORM_PALETTE1)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   I16_UNORM)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   L16_UNORM)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   A16_UNORM)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   L8A8_UNORM)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   I16_FLOAT)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   L16_FLOAT)
> +   SF( Y,  Y,  Y,  x,  x,  x,  x,  x,  x,    x,   A16_FLOAT)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   L8A8_UNORM_SRGB)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   R5G5_SNORM_B6_UNORM)
> +   SF( x,  x,  x,  x,  Y,  Y,  x,  x,  x,    x,   B5G5R5X1_UNORM)
> +   SF( x,  x,  x,  x,  Y,  Y,  x,  x,  x,    x,   B5G5R5X1_UNORM_SRGB)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8_USCALED)
> +/* smpl filt shad CK  RT  AB  VB  SO  color ccs_e */
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16_USCALED)
> +   SF(50, 50,  x,  x,  x,  x,  x,  x,  x,    x,   P8A8_UNORM_PALETTE0)
> +   SF(50, 50,  x,  x,  x,  x,  x,  x,  x,    x,   P8A8_UNORM_PALETTE1)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   A1B5G5R5_UNORM)
> +   SF(90, 90,  x,  x, 90,  x,  x,  x,  x,    x,   A4B4G4R4_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   L8A8_UINT)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   L8A8_SINT)
> +   SF( Y,  Y,  x, 45,  Y,  Y,  Y,  x,  x,    x,   R8_UNORM)
> +   SF( Y,  Y,  x,  x,  Y, 60,  Y,  x,  x,    x,   R8_SNORM)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R8_SINT)
> +   SF( Y,  x,  x,  x,  Y,  x,  Y,  x,  x,    x,   R8_UINT)
> +   SF( Y,  Y,  x,  Y,  Y,  Y,  x,  x,  x,    x,   A8_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   I8_UNORM)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   L8_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   P4A4_UNORM_PALETTE0)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   A4P4_UNORM_PALETTE0)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8_USCALED)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   P8_UNORM_PALETTE0)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   L8_UNORM_SRGB)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   P8_UNORM_PALETTE1)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   P4A4_UNORM_PALETTE1)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   A4P4_UNORM_PALETTE1)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   Y8_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   L8_UINT)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   L8_SINT)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   I8_UINT)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   I8_SINT)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   DXT1_RGB_SRGB)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   R1_UNORM)
> +   SF( Y,  Y,  x,  Y,  Y,  x,  x,  x, 60,    x,   YCRCB_NORMAL)
> +   SF( Y,  Y,  x,  Y,  Y,  x,  x,  x, 60,    x,   YCRCB_SWAPUVY)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   P2_UNORM_PALETTE0)
> +   SF(45, 45,  x,  x,  x,  x,  x,  x,  x,    x,   P2_UNORM_PALETTE1)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   BC1_UNORM)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   BC2_UNORM)
> +   SF( Y,  Y,  x,  Y,  x,  x,  x,  x,  x,    x,   BC3_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC4_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC5_UNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC1_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC2_UNORM_SRGB)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC3_UNORM_SRGB)
> +   SF( Y,  x,  x,  x,  x,  x,  x,  x,  x,    x,   MONO8)
> +   SF( Y,  Y,  x,  x,  Y,  x,  x,  x, 60,    x,   YCRCB_SWAPUV)
> +   SF( Y,  Y,  x,  x,  Y,  x,  x,  x, 60,    x,   YCRCB_SWAPY)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   DXT1_RGB)
> +/* smpl filt shad CK  RT  AB  VB  SO  color ccs_e */
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   FXT1)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8_SNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R8G8B8_USCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R64G64B64A64_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R64G64B64_FLOAT)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC4_SNORM)
> +   SF( Y,  Y,  x,  x,  x,  x,  x,  x,  x,    x,   BC5_SNORM)
> +   SF(50, 50,  x,  x,  x,  x, 60,  x,  x,    x,   R16G16B16_FLOAT)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16_UNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16_SNORM)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x,  Y,  x,  x,    x,   R16G16B16_USCALED)
> +   SF(70, 70,  x,  x,  x,  x,  x,  x,  x,    x,   BC6H_SF16)
> +   SF(70, 70,  x,  x,  x,  x,  x,  x,  x,    x,   BC7_UNORM)
> +   SF(70, 70,  x,  x,  x,  x,  x,  x,  x,    x,   BC7_UNORM_SRGB)
> +   SF(70, 70,  x,  x,  x,  x,  x,  x,  x,    x,   BC6H_UF16)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   PLANAR_420_8)
> +   SF( x,  x,  x,  x,  x,  x,  x,  x,  x,    x,   R8G8B8_UNORM_SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC1_RGB8)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_RGB8)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   EAC_R11)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   EAC_RG11)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   EAC_SIGNED_R11)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   EAC_SIGNED_RG11)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_SRGB8)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R16G16B16_UINT)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R16G16B16_SINT)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R32_SFIXED)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R10G10B10A2_SNORM)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R10G10B10A2_USCALED)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R10G10B10A2_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R10G10B10A2_SINT)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   B10G10R10A2_SNORM)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   B10G10R10A2_USCALED)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   B10G10R10A2_SSCALED)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   B10G10R10A2_UINT)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   B10G10R10A2_SINT)
> +   SF( x,  x,  x,  x,  x,  x, 80,  x,  x,    x,   R64G64B64A64_PASSTHRU)
> +   SF( x,  x,  x,  x,  x,  x, 80,  x,  x,    x,   R64G64B64_PASSTHRU)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_RGB8_PTA)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_SRGB8_PTA)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_EAC_RGBA8)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ETC2_EAC_SRGB8_A8)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R8G8B8_UINT)
> +   SF( x,  x,  x,  x,  x,  x, 75,  x,  x,    x,   R8G8B8_SINT)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_4X4_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_5X4_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_5X5_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_6X5_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_6X6_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X5_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X6_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X8_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X5_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X6_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X8_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X10_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_12X10_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_12X12_FLT16)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_4X4_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_5X4_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_5X5_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_6X5_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_6X6_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X5_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X6_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_8X8_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X5_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X6_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X8_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_10X10_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_12X10_U8SRGB)
> +   SF(80, 80,  x,  x,  x,  x,  x,  x,  x,    x,   ASTC_LDR_2D_12X12_U8SRGB)
> +};
> +#undef x
> +#undef Y
> +
> +static unsigned
> +format_gen(const struct brw_device_info *devinfo)
> +{
> +   return devinfo->gen * 10 + (devinfo->is_g4x || devinfo->is_haswell) * 5;
> +}
> +
> +bool
> +isl_format_supports_rendering(const struct brw_device_info *devinfo,
> +                              enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
>

What about putting the above check inside a macro (e.g
ENSURE_FORMAT_EXISTS(format)) ?

Eduardo

> +
> +   return format_gen(devinfo) >= format_info[format].render_target;
> +}
> +
> +bool
> +isl_format_supports_alpha_blending(const struct brw_device_info *devinfo,
> +                                   enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
> +
> +   return format_gen(devinfo) >= format_info[format].alpha_blend;
> +}
> +
> +bool
> +isl_format_supports_sampling(const struct brw_device_info *devinfo,
> +                             enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
> +
> +   return format_gen(devinfo) >= format_info[format].sampling;
> +}
> +
> +bool
> +isl_format_supports_filtering(const struct brw_device_info *devinfo,
> +                              enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
> +
> +   return format_gen(devinfo) >= format_info[format].filtering;
> +}
> +
> +bool
> +isl_format_supports_vertex_fetch(const struct brw_device_info *devinfo,
> +                                 enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
> +
> +   /* For vertex fetch, Bay Trail supports the same set of formats as Haswell
> +    * but is a superset of Ivy Bridge.
> +    */
> +   if (devinfo->is_baytrail)
> +      return 75 >= format_info[format].input_vb;
> +
> +   return format_gen(devinfo) >= format_info[format].input_vb;
> +}
> +
> +bool
> +isl_format_supports_lossless_compression(const struct brw_device_info *devinfo,
> +                                         enum isl_format format)
> +{
> +   if (!format_info[format].exists)
> +      return false;
> +
> +   return format_gen(devinfo) >= format_info[format].lossless_compression;
> +}
>  
>  static inline bool
>  isl_format_has_channel_type(enum isl_format fmt, enum isl_base_type type)
> 



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