| /* |
| * 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 <assert.h> |
| |
| #include "isl.h" |
| #include "isl_priv.h" |
| #include "dev/gen_device_info.h" |
| |
| #include "main/macros.h" /* Needed for MAX3 and MAX2 for format_rgb9e5 */ |
| #include "util/format_srgb.h" |
| #include "util/format_rgb9e5.h" |
| #include "util/format_r11g11b10f.h" |
| |
| /* Header-only format conversion include */ |
| #include "main/format_utils.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 typed_write; |
| uint8_t typed_read; |
| uint8_t ccs_e; |
| }; |
| |
| /* 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, tw, tr, ccs_e, sf) \ |
| [ISL_FORMAT_##sf] = { true, sampl, filt, shad, ck, rt, ab, vb, so, color, tw, tr, 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 TW TR ccs_e */ |
| SF( Y, 50, x, x, Y, Y, Y, Y, x, 70, 90, 90, R32G32B32A32_FLOAT) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 90, 90, R32G32B32A32_SINT) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 90, 90, R32G32B32A32_UINT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32A32_UNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32A32_SNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R64G64_FLOAT) |
| SF( Y, 50, x, x, 100, 100, x, x, x, x, x, 100, R32G32B32X32_FLOAT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32A32_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32A32_USCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R32G32B32A32_SFIXED) |
| SF( x, x, x, x, x, x, 80, x, x, x, x, x, R64G64_PASSTHRU) |
| SF( Y, 50, x, x, x, x, Y, Y, x, x, x, x, R32G32B32_FLOAT) |
| SF( Y, x, x, x, x, x, Y, Y, x, x, x, x, R32G32B32_SINT) |
| SF( Y, x, x, x, x, x, Y, Y, x, x, x, x, R32G32B32_UINT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32_UNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32_SNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32B32_USCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R32G32B32_SFIXED) |
| SF( Y, Y, x, x, Y, 45, Y, x, 60, 70, 110, 90, R16G16B16A16_UNORM) |
| SF( Y, Y, x, x, Y, 60, Y, x, x, 70, 110, 90, R16G16B16A16_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 90, R16G16B16A16_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 90, R16G16B16A16_UINT) |
| SF( Y, Y, x, x, Y, Y, Y, x, x, 70, 90, 90, R16G16B16A16_FLOAT) |
| SF( Y, 50, x, x, Y, Y, Y, Y, x, 70, 90, 90, R32G32_FLOAT) |
| SF( Y, 70, x, x, Y, Y, Y, Y, x, x, x, x, R32G32_FLOAT_LD) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 90, 90, R32G32_SINT) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 90, 90, R32G32_UINT) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, R32_FLOAT_X8X24_TYPELESS) |
| SF( Y, x, x, x, x, x, x, x, x, x, x, x, X32_TYPELESS_G8X24_UINT) |
| SF( Y, 50, x, x, x, x, x, x, x, x, x, x, L32A32_FLOAT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32_UNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32_SNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R64_FLOAT) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, R16G16B16X16_UNORM) |
| SF( Y, Y, x, x, 90, 90, x, x, x, x, x, 90, R16G16B16X16_FLOAT) |
| SF( Y, 50, x, x, x, x, x, x, x, x, x, x, A32X32_FLOAT) |
| SF( Y, 50, x, x, x, x, x, x, x, x, x, x, L32X32_FLOAT) |
| SF( Y, 50, x, x, x, x, x, x, x, x, x, x, I32X32_FLOAT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16B16A16_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16B16A16_USCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32G32_USCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R32G32_SFIXED) |
| SF( x, x, x, x, x, x, 80, x, x, x, x, x, R64_PASSTHRU) |
| SF( Y, Y, x, Y, Y, Y, Y, x, 60, 70, x, 90, B8G8R8A8_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, x, x, x, 100, B8G8R8A8_UNORM_SRGB) |
| /* smpl filt shad CK RT AB VB SO color TW TR ccs_e */ |
| SF( Y, Y, x, x, Y, Y, Y, x, 60, 70, x, 100, R10G10B10A2_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, 60, x, x, 120, R10G10B10A2_UNORM_SRGB) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, x, 100, R10G10B10A2_UINT) |
| SF( Y, Y, x, x, x, x, Y, x, x, x, x, x, R10G10B10_SNORM_A2_UNORM) |
| SF( Y, Y, x, x, Y, Y, Y, x, 60, 70, 110, 90, R8G8B8A8_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, 60, x, x, 100, R8G8B8A8_UNORM_SRGB) |
| SF( Y, Y, x, x, Y, 60, Y, x, x, 70, 110, 90, R8G8B8A8_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 90, R8G8B8A8_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 90, R8G8B8A8_UINT) |
| SF( Y, Y, x, x, Y, 45, Y, x, x, 70, 110, 90, R16G16_UNORM) |
| SF( Y, Y, x, x, Y, 60, Y, x, x, 70, 110, 90, R16G16_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 90, R16G16_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 90, R16G16_UINT) |
| SF( Y, Y, x, x, Y, Y, Y, x, x, 70, 90, 90, R16G16_FLOAT) |
| SF( Y, Y, x, x, Y, Y, 75, x, 60, 70, x, 100, B10G10R10A2_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, 60, x, x, 100, B10G10R10A2_UNORM_SRGB) |
| SF( Y, Y, x, x, Y, Y, Y, x, x, 70, x, 100, R11G11B10_FLOAT) |
| SF(120, 120, x, x, 120, 120, x, x, x, x, x, 120, R10G10B10_FLOAT_A2_UNORM) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 70, 90, R32_SINT) |
| SF( Y, x, x, x, Y, x, Y, Y, x, 70, 70, 90, R32_UINT) |
| SF( Y, 50, Y, x, Y, Y, Y, Y, x, 70, 70, 90, R32_FLOAT) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, 120, R24_UNORM_X8_TYPELESS) |
| SF( Y, x, x, x, x, x, x, x, x, x, x, x, X24_TYPELESS_G8_UINT) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, L16A16_UNORM) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, I24X8_UNORM) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, L24X8_UNORM) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, A24X8_UNORM) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, I32_FLOAT) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, L32_FLOAT) |
| SF( Y, 50, Y, x, x, x, x, x, x, x, x, x, A32_FLOAT) |
| SF( Y, Y, x, Y, 80, 80, x, x, 60, x, x, 90, B8G8R8X8_UNORM) |
| SF( Y, Y, x, x, 80, 80, x, x, x, x, x, 100, B8G8R8X8_UNORM_SRGB) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, R8G8B8X8_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, R8G8B8X8_UNORM_SRGB) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, R9G9B9E5_SHAREDEXP) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, B10G10R10X2_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, L16A16_FLOAT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32_UNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32_SNORM) |
| /* smpl filt shad CK RT AB VB SO color TW TR ccs_e */ |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R10G10B10X2_USCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8B8A8_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8B8A8_USCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16_USCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R32_USCALED) |
| SF( Y, Y, x, Y, Y, Y, x, x, x, 70, x, 120, B5G6R5_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, x, x, x, 120, B5G6R5_UNORM_SRGB) |
| SF( Y, Y, x, Y, Y, Y, x, x, x, 70, x, 120, B5G5R5A1_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, x, x, x, 120, B5G5R5A1_UNORM_SRGB) |
| SF( Y, Y, x, Y, Y, Y, x, x, x, 70, x, 120, B4G4R4A4_UNORM) |
| SF( Y, Y, x, x, Y, Y, x, x, x, x, x, 120, B4G4R4A4_UNORM_SRGB) |
| SF( Y, Y, x, x, Y, Y, Y, x, x, 70, 110, 120, R8G8_UNORM) |
| SF( Y, Y, x, Y, Y, 60, Y, x, x, 70, 110, 120, R8G8_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 120, R8G8_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 120, R8G8_UINT) |
| SF( Y, Y, Y, x, Y, 45, Y, x, 70, 70, 110, 120, R16_UNORM) |
| SF( Y, Y, x, x, Y, 60, Y, x, x, 70, 110, 120, R16_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 120, R16_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 120, R16_UINT) |
| SF( Y, Y, x, x, Y, Y, Y, x, x, 70, 90, 120, R16_FLOAT) |
| SF( 50, 50, x, x, x, x, x, x, x, x, x, x, A8P8_UNORM_PALETTE0) |
| SF( 50, 50, x, x, x, x, x, x, x, x, x, x, A8P8_UNORM_PALETTE1) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, I16_UNORM) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, L16_UNORM) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, A16_UNORM) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, L8A8_UNORM) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, I16_FLOAT) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, L16_FLOAT) |
| SF( Y, Y, Y, x, x, x, x, x, x, x, x, x, A16_FLOAT) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, L8A8_UNORM_SRGB) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, R5G5_SNORM_B6_UNORM) |
| SF( x, x, x, x, Y, Y, x, x, x, 70, x, 120, B5G5R5X1_UNORM) |
| SF( x, x, x, x, Y, Y, x, x, x, x, x, 120, B5G5R5X1_UNORM_SRGB) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8_USCALED) |
| /* smpl filt shad CK RT AB VB SO color TW TR ccs_e */ |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16_USCALED) |
| SF( 50, 50, x, x, x, x, x, x, x, x, x, x, P8A8_UNORM_PALETTE0) |
| SF( 50, 50, x, x, x, x, x, x, x, x, x, x, P8A8_UNORM_PALETTE1) |
| SF(120, 120, x, x, 120, 120, x, x, x, x, x, 120, A1B5G5R5_UNORM) |
| /* According to the PRM, A4B4G4R4_UNORM isn't supported until Sky Lake |
| * but empirical testing indicates that at least sampling works just fine |
| * on Broadwell. |
| */ |
| SF( 80, 80, x, x, 90, 120, x, x, x, x, x, 120, A4B4G4R4_UNORM) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, L8A8_UINT) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, L8A8_SINT) |
| SF( Y, Y, x, 45, Y, Y, Y, x, x, 70, 110, 120, R8_UNORM) |
| SF( Y, Y, x, x, Y, 60, Y, x, x, 70, 110, 120, R8_SNORM) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 90, 120, R8_SINT) |
| SF( Y, x, x, x, Y, x, Y, x, x, 70, 75, 120, R8_UINT) |
| SF( Y, Y, x, Y, Y, Y, x, x, x, 70, 110, 120, A8_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, I8_UNORM) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, L8_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, P4A4_UNORM_PALETTE0) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, A4P4_UNORM_PALETTE0) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8_USCALED) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, P8_UNORM_PALETTE0) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, L8_UNORM_SRGB) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, P8_UNORM_PALETTE1) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, P4A4_UNORM_PALETTE1) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, A4P4_UNORM_PALETTE1) |
| SF( x, x, x, x, x, x, x, x, x, x, x, x, Y8_UNORM) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, L8_UINT) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, L8_SINT) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, I8_UINT) |
| SF( 90, x, x, x, x, x, x, x, x, x, x, x, I8_SINT) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, DXT1_RGB_SRGB) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, R1_UNORM) |
| SF( Y, Y, x, Y, Y, x, x, x, 60, x, x, x, YCRCB_NORMAL) |
| SF( Y, Y, x, Y, Y, x, x, x, 60, x, x, x, YCRCB_SWAPUVY) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, P2_UNORM_PALETTE0) |
| SF( 45, 45, x, x, x, x, x, x, x, x, x, x, P2_UNORM_PALETTE1) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, BC1_UNORM) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, BC2_UNORM) |
| SF( Y, Y, x, Y, x, x, x, x, x, x, x, x, BC3_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC4_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC5_UNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC1_UNORM_SRGB) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC2_UNORM_SRGB) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC3_UNORM_SRGB) |
| SF( Y, x, x, x, x, x, x, x, x, x, x, x, MONO8) |
| SF( Y, Y, x, x, Y, x, x, x, 60, x, x, x, YCRCB_SWAPUV) |
| SF( Y, Y, x, x, Y, x, x, x, 60, x, x, x, YCRCB_SWAPY) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, DXT1_RGB) |
| /* smpl filt shad CK RT AB VB SO color TW TR ccs_e */ |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, FXT1) |
| SF( 75, 75, x, x, x, x, Y, x, x, x, x, x, R8G8B8_UNORM) |
| SF( 75, 75, x, x, x, x, Y, x, x, x, x, x, R8G8B8_SNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8B8_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R8G8B8_USCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R64G64B64A64_FLOAT) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R64G64B64_FLOAT) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC4_SNORM) |
| SF( Y, Y, x, x, x, x, x, x, x, x, x, x, BC5_SNORM) |
| SF( 50, 50, x, x, x, x, 60, x, x, x, x, x, R16G16B16_FLOAT) |
| SF( 75, 75, x, x, x, x, Y, x, x, x, x, x, R16G16B16_UNORM) |
| SF( 75, 75, x, x, x, x, Y, x, x, x, x, x, R16G16B16_SNORM) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16B16_SSCALED) |
| SF( x, x, x, x, x, x, Y, x, x, x, x, x, R16G16B16_USCALED) |
| SF( 70, 70, x, x, x, x, x, x, x, x, x, x, BC6H_SF16) |
| SF( 70, 70, x, x, x, x, x, x, x, x, x, x, BC7_UNORM) |
| SF( 70, 70, x, x, x, x, x, x, x, x, x, x, BC7_UNORM_SRGB) |
| SF( 70, 70, x, x, x, x, x, x, x, x, x, x, BC6H_UF16) |
| SF( x, x, x, x, x, x, x, x, x, x, x, x, PLANAR_420_8) |
| /* The format enum for R8G8B8_UNORM_SRGB first shows up in the HSW PRM but |
| * empirical testing indicates that it doesn't actually sRGB decode and |
| * acts identical to R8G8B8_UNORM. It does work on gen8+. |
| */ |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, R8G8B8_UNORM_SRGB) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC1_RGB8) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_RGB8) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, EAC_R11) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, EAC_RG11) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, EAC_SIGNED_R11) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, EAC_SIGNED_RG11) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_SRGB8) |
| SF( 90, x, x, x, x, x, 75, x, x, x, x, x, R16G16B16_UINT) |
| SF( 90, x, x, x, x, x, 75, x, x, x, x, x, R16G16B16_SINT) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R32_SFIXED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R10G10B10A2_SNORM) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R10G10B10A2_USCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R10G10B10A2_SSCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, R10G10B10A2_SINT) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, B10G10R10A2_SNORM) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, B10G10R10A2_USCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, B10G10R10A2_SSCALED) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, B10G10R10A2_UINT) |
| SF( x, x, x, x, x, x, 75, x, x, x, x, x, B10G10R10A2_SINT) |
| SF( x, x, x, x, x, x, 80, x, x, x, x, x, R64G64B64A64_PASSTHRU) |
| SF( x, x, x, x, x, x, 80, x, x, x, x, x, R64G64B64_PASSTHRU) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_RGB8_PTA) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_SRGB8_PTA) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_EAC_RGBA8) |
| SF( 80, 80, x, x, x, x, x, x, x, x, x, x, ETC2_EAC_SRGB8_A8) |
| SF( 90, x, x, x, x, x, 75, x, x, x, x, x, R8G8B8_UINT) |
| SF( 90, x, x, x, x, x, 75, x, x, x, x, x, R8G8B8_SINT) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_4X4_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_5X4_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_5X5_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_6X5_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_6X6_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X5_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X6_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X8_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X5_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X6_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X8_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X10_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_12X10_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_12X12_FLT16) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_4X4_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_5X4_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_5X5_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_6X5_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_6X6_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X5_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X6_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_8X8_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X5_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X6_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X8_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_10X10_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_12X10_U8SRGB) |
| SF( 90, 90, x, x, x, x, x, x, x, x, x, x, ASTC_LDR_2D_12X12_U8SRGB) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_4X4_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_5X4_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_5X5_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_6X5_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_6X6_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_8X5_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_8X6_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_8X8_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_10X5_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_10X6_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_10X8_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_10X10_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_12X10_FLT16) |
| SF(100, 100, x, x, x, x, x, x, x, x, x, x, ASTC_HDR_2D_12X12_FLT16) |
| }; |
| #undef x |
| #undef Y |
| |
| static unsigned |
| format_gen(const struct gen_device_info *devinfo) |
| { |
| return devinfo->gen * 10 + (devinfo->is_g4x || devinfo->is_haswell) * 5; |
| } |
| |
| static bool |
| format_info_exists(enum isl_format format) |
| { |
| assert(format != ISL_FORMAT_UNSUPPORTED); |
| assert(format < ISL_NUM_FORMATS); |
| return format < ARRAY_SIZE(format_info) && format_info[format].exists; |
| } |
| |
| bool |
| isl_format_supports_rendering(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| return format_gen(devinfo) >= format_info[format].render_target; |
| } |
| |
| bool |
| isl_format_supports_alpha_blending(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| return format_gen(devinfo) >= format_info[format].alpha_blend; |
| } |
| |
| bool |
| isl_format_supports_sampling(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| if (devinfo->is_baytrail) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ETC1 and ETC2 exists on Bay Trail even though big-core |
| * GPUs didn't get it until Broadwell. |
| */ |
| if (fmtl->txc == ISL_TXC_ETC1 || fmtl->txc == ISL_TXC_ETC2) |
| return true; |
| } else if (devinfo->is_cherryview) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ASTC LDR exists on Cherry View even though big-core |
| * GPUs didn't get it until Skylake. |
| */ |
| if (fmtl->txc == ISL_TXC_ASTC) |
| return format < ISL_FORMAT_ASTC_HDR_2D_4X4_FLT16; |
| } else if (gen_device_info_is_9lp(devinfo)) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ASTC HDR exists on Broxton even though big-core |
| * GPUs didn't get it until Cannonlake. |
| */ |
| if (fmtl->txc == ISL_TXC_ASTC) |
| return true; |
| } |
| |
| return format_gen(devinfo) >= format_info[format].sampling; |
| } |
| |
| bool |
| isl_format_supports_filtering(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| if (devinfo->is_baytrail) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ETC1 and ETC2 exists on Bay Trail even though big-core |
| * GPUs didn't get it until Broadwell. |
| */ |
| if (fmtl->txc == ISL_TXC_ETC1 || fmtl->txc == ISL_TXC_ETC2) |
| return true; |
| } else if (devinfo->is_cherryview) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ASTC LDR exists on Cherry View even though big-core |
| * GPUs didn't get it until Skylake. |
| */ |
| if (fmtl->txc == ISL_TXC_ASTC) |
| return format < ISL_FORMAT_ASTC_HDR_2D_4X4_FLT16; |
| } else if (gen_device_info_is_9lp(devinfo)) { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| /* Support for ASTC HDR exists on Broxton even though big-core |
| * GPUs didn't get it until Cannonlake. |
| */ |
| if (fmtl->txc == ISL_TXC_ASTC) |
| return true; |
| } |
| |
| return format_gen(devinfo) >= format_info[format].filtering; |
| } |
| |
| bool |
| isl_format_supports_vertex_fetch(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| 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; |
| } |
| |
| /** |
| * Returns true if the given format can support typed writes. |
| */ |
| bool |
| isl_format_supports_typed_writes(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| return format_gen(devinfo) >= format_info[format].typed_write; |
| } |
| |
| |
| /** |
| * Returns true if the given format can support typed reads with format |
| * conversion fully handled by hardware. On Sky Lake, all formats which are |
| * supported for typed writes also support typed reads but some of them return |
| * the raw image data and don't provide format conversion. |
| * |
| * For anyone looking to find this data in the PRM, the easiest way to find |
| * format tables is to search for R11G11B10. There are only a few |
| * occurrences. |
| */ |
| bool |
| isl_format_supports_typed_reads(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| return format_gen(devinfo) >= format_info[format].typed_read; |
| } |
| |
| /** |
| * Returns true if the given format can support single-sample fast clears. |
| * This function only checks the format. In order to determine if a surface |
| * supports CCS_E, several other factors need to be considered such as tiling |
| * and sample count. See isl_surf_get_ccs_surf for details. |
| */ |
| bool |
| isl_format_supports_ccs_d(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| /* Clear-only compression was first added on Ivy Bridge and was last |
| * implemented on Ice lake (see BSpec: 43862). |
| */ |
| if (devinfo->gen < 7 || devinfo->gen > 11) |
| return false; |
| |
| if (!isl_format_supports_rendering(devinfo, format)) |
| return false; |
| |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| |
| return fmtl->bpb == 32 || fmtl->bpb == 64 || fmtl->bpb == 128; |
| } |
| |
| /** |
| * Returns true if the given format can support single-sample color |
| * compression. This function only checks the format. In order to determine |
| * if a surface supports CCS_E, several other factors need to be considered |
| * such as tiling and sample count. See isl_surf_get_ccs_surf for details. |
| */ |
| bool |
| isl_format_supports_ccs_e(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| if (!format_info_exists(format)) |
| return false; |
| |
| /* For simplicity, only report that a format supports CCS_E if blorp can |
| * perform bit-for-bit copies with an image of that format while compressed. |
| * Unfortunately, R11G11B10_FLOAT is in a compression class of its own and |
| * there is no way to copy to/from it which doesn't potentially loose data |
| * if one of the bit patterns being copied isn't valid finite floats. |
| */ |
| if (format == ISL_FORMAT_R11G11B10_FLOAT) |
| return false; |
| |
| return format_gen(devinfo) >= format_info[format].ccs_e; |
| } |
| |
| bool |
| isl_format_supports_multisampling(const struct gen_device_info *devinfo, |
| enum isl_format format) |
| { |
| /* From the Sandybridge PRM, Volume 4 Part 1 p72, SURFACE_STATE, Surface |
| * Format: |
| * |
| * If Number of Multisamples is set to a value other than |
| * MULTISAMPLECOUNT_1, this field cannot be set to the following |
| * formats: |
| * |
| * - any format with greater than 64 bits per element |
| * - any compressed texture format (BC*) |
| * - any YCRCB* format |
| * |
| * The restriction on the format's size is removed on Broadwell. Moreover, |
| * empirically it looks that even IvyBridge can handle multisampled surfaces |
| * with format sizes all the way to 128-bits (RGBA32F, RGBA32I, RGBA32UI). |
| * |
| * Also, there is an exception for HiZ which we treat as a compressed |
| * format and is allowed to be multisampled on Broadwell and earlier. |
| */ |
| if (format == ISL_FORMAT_HIZ) { |
| /* On SKL+, HiZ is always single-sampled even when the primary surface |
| * is multisampled. See also isl_surf_get_hiz_surf(). |
| */ |
| return devinfo->gen <= 8; |
| } else if (devinfo->gen < 7 && isl_format_get_layout(format)->bpb > 64) { |
| return false; |
| } else if (isl_format_is_compressed(format)) { |
| return false; |
| } else if (isl_format_is_yuv(format)) { |
| return false; |
| } else { |
| return true; |
| } |
| } |
| |
| /** |
| * Returns true if the two formats are "CCS_E compatible" meaning that you can |
| * render in one format with CCS_E enabled and then texture using the other |
| * format without needing a resolve. |
| * |
| * Note: Even if the formats are compatible, special care must be taken if a |
| * clear color is involved because the encoding of the clear color is heavily |
| * format-dependent. |
| */ |
| bool |
| isl_formats_are_ccs_e_compatible(const struct gen_device_info *devinfo, |
| enum isl_format format1, |
| enum isl_format format2) |
| { |
| /* They must support CCS_E */ |
| if (!isl_format_supports_ccs_e(devinfo, format1) || |
| !isl_format_supports_ccs_e(devinfo, format2)) |
| return false; |
| |
| const struct isl_format_layout *fmtl1 = isl_format_get_layout(format1); |
| const struct isl_format_layout *fmtl2 = isl_format_get_layout(format2); |
| |
| /* The compression used by CCS is not dependent on the actual data encoding |
| * of the format but only depends on the bit-layout of the channels. |
| */ |
| return fmtl1->channels.r.bits == fmtl2->channels.r.bits && |
| fmtl1->channels.g.bits == fmtl2->channels.g.bits && |
| fmtl1->channels.b.bits == fmtl2->channels.b.bits && |
| fmtl1->channels.a.bits == fmtl2->channels.a.bits; |
| } |
| |
| static bool |
| isl_format_has_channel_type(enum isl_format fmt, enum isl_base_type type) |
| { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(fmt); |
| |
| return fmtl->channels.r.type == type || |
| fmtl->channels.g.type == type || |
| fmtl->channels.b.type == type || |
| fmtl->channels.a.type == type || |
| fmtl->channels.l.type == type || |
| fmtl->channels.i.type == type || |
| fmtl->channels.p.type == type; |
| } |
| |
| bool |
| isl_format_has_unorm_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_UNORM); |
| } |
| |
| bool |
| isl_format_has_snorm_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_SNORM); |
| } |
| |
| bool |
| isl_format_has_ufloat_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_UFLOAT); |
| } |
| |
| bool |
| isl_format_has_sfloat_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_SFLOAT); |
| } |
| |
| bool |
| isl_format_has_uint_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_UINT); |
| } |
| |
| bool |
| isl_format_has_sint_channel(enum isl_format fmt) |
| { |
| return isl_format_has_channel_type(fmt, ISL_SINT); |
| } |
| |
| bool |
| isl_format_has_color_component(enum isl_format fmt, int component) |
| { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(fmt); |
| const uint8_t intensity = fmtl->channels.i.bits; |
| const uint8_t luminance = fmtl->channels.l.bits; |
| |
| switch (component) { |
| case 0: |
| return (fmtl->channels.r.bits + intensity + luminance) > 0; |
| case 1: |
| return (fmtl->channels.g.bits + intensity + luminance) > 0; |
| case 2: |
| return (fmtl->channels.b.bits + intensity + luminance) > 0; |
| case 3: |
| return (fmtl->channels.a.bits + intensity) > 0; |
| default: |
| assert(!"Invalid color component: must be 0..3"); |
| return false; |
| } |
| } |
| |
| unsigned |
| isl_format_get_num_channels(enum isl_format fmt) |
| { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(fmt); |
| |
| assert(fmtl->channels.p.bits == 0); |
| |
| return (fmtl->channels.r.bits > 0) + |
| (fmtl->channels.g.bits > 0) + |
| (fmtl->channels.b.bits > 0) + |
| (fmtl->channels.a.bits > 0) + |
| (fmtl->channels.l.bits > 0) + |
| (fmtl->channels.i.bits > 0); |
| } |
| |
| uint32_t |
| isl_format_get_depth_format(enum isl_format fmt, bool has_stencil) |
| { |
| switch (fmt) { |
| default: |
| unreachable("bad isl depth format"); |
| case ISL_FORMAT_R32_FLOAT_X8X24_TYPELESS: |
| assert(has_stencil); |
| return 0; /* D32_FLOAT_S8X24_UINT */ |
| case ISL_FORMAT_R32_FLOAT: |
| assert(!has_stencil); |
| return 1; /* D32_FLOAT */ |
| case ISL_FORMAT_R24_UNORM_X8_TYPELESS: |
| if (has_stencil) { |
| return 2; /* D24_UNORM_S8_UINT */ |
| } else { |
| return 3; /* D24_UNORM_X8_UINT */ |
| } |
| case ISL_FORMAT_R16_UNORM: |
| assert(!has_stencil); |
| return 5; /* D16_UNORM */ |
| } |
| } |
| |
| enum isl_format |
| isl_format_rgb_to_rgba(enum isl_format rgb) |
| { |
| assert(isl_format_is_rgb(rgb)); |
| |
| switch (rgb) { |
| case ISL_FORMAT_R32G32B32_FLOAT: return ISL_FORMAT_R32G32B32A32_FLOAT; |
| case ISL_FORMAT_R32G32B32_SINT: return ISL_FORMAT_R32G32B32A32_SINT; |
| case ISL_FORMAT_R32G32B32_UINT: return ISL_FORMAT_R32G32B32A32_UINT; |
| case ISL_FORMAT_R32G32B32_UNORM: return ISL_FORMAT_R32G32B32A32_UNORM; |
| case ISL_FORMAT_R32G32B32_SNORM: return ISL_FORMAT_R32G32B32A32_SNORM; |
| case ISL_FORMAT_R32G32B32_SSCALED: return ISL_FORMAT_R32G32B32A32_SSCALED; |
| case ISL_FORMAT_R32G32B32_USCALED: return ISL_FORMAT_R32G32B32A32_USCALED; |
| case ISL_FORMAT_R32G32B32_SFIXED: return ISL_FORMAT_R32G32B32A32_SFIXED; |
| case ISL_FORMAT_R8G8B8_UNORM: return ISL_FORMAT_R8G8B8A8_UNORM; |
| case ISL_FORMAT_R8G8B8_SNORM: return ISL_FORMAT_R8G8B8A8_SNORM; |
| case ISL_FORMAT_R8G8B8_SSCALED: return ISL_FORMAT_R8G8B8A8_SSCALED; |
| case ISL_FORMAT_R8G8B8_USCALED: return ISL_FORMAT_R8G8B8A8_USCALED; |
| case ISL_FORMAT_R16G16B16_FLOAT: return ISL_FORMAT_R16G16B16A16_FLOAT; |
| case ISL_FORMAT_R16G16B16_UNORM: return ISL_FORMAT_R16G16B16A16_UNORM; |
| case ISL_FORMAT_R16G16B16_SNORM: return ISL_FORMAT_R16G16B16A16_SNORM; |
| case ISL_FORMAT_R16G16B16_SSCALED: return ISL_FORMAT_R16G16B16A16_SSCALED; |
| case ISL_FORMAT_R16G16B16_USCALED: return ISL_FORMAT_R16G16B16A16_USCALED; |
| case ISL_FORMAT_R8G8B8_UNORM_SRGB: return ISL_FORMAT_R8G8B8A8_UNORM_SRGB; |
| case ISL_FORMAT_R16G16B16_UINT: return ISL_FORMAT_R16G16B16A16_UINT; |
| case ISL_FORMAT_R16G16B16_SINT: return ISL_FORMAT_R16G16B16A16_SINT; |
| case ISL_FORMAT_R8G8B8_UINT: return ISL_FORMAT_R8G8B8A8_UINT; |
| case ISL_FORMAT_R8G8B8_SINT: return ISL_FORMAT_R8G8B8A8_SINT; |
| default: |
| return ISL_FORMAT_UNSUPPORTED; |
| } |
| } |
| |
| enum isl_format |
| isl_format_rgb_to_rgbx(enum isl_format rgb) |
| { |
| assert(isl_format_is_rgb(rgb)); |
| |
| switch (rgb) { |
| case ISL_FORMAT_R32G32B32_FLOAT: |
| return ISL_FORMAT_R32G32B32X32_FLOAT; |
| case ISL_FORMAT_R16G16B16_UNORM: |
| return ISL_FORMAT_R16G16B16X16_UNORM; |
| case ISL_FORMAT_R16G16B16_FLOAT: |
| return ISL_FORMAT_R16G16B16X16_FLOAT; |
| case ISL_FORMAT_R8G8B8_UNORM: |
| return ISL_FORMAT_R8G8B8X8_UNORM; |
| case ISL_FORMAT_R8G8B8_UNORM_SRGB: |
| return ISL_FORMAT_R8G8B8X8_UNORM_SRGB; |
| default: |
| return ISL_FORMAT_UNSUPPORTED; |
| } |
| } |
| |
| enum isl_format |
| isl_format_rgbx_to_rgba(enum isl_format rgbx) |
| { |
| assert(isl_format_is_rgbx(rgbx)); |
| |
| switch (rgbx) { |
| case ISL_FORMAT_R32G32B32X32_FLOAT: |
| return ISL_FORMAT_R32G32B32A32_FLOAT; |
| case ISL_FORMAT_R16G16B16X16_UNORM: |
| return ISL_FORMAT_R16G16B16A16_UNORM; |
| case ISL_FORMAT_R16G16B16X16_FLOAT: |
| return ISL_FORMAT_R16G16B16A16_FLOAT; |
| case ISL_FORMAT_B8G8R8X8_UNORM: |
| return ISL_FORMAT_B8G8R8A8_UNORM; |
| case ISL_FORMAT_B8G8R8X8_UNORM_SRGB: |
| return ISL_FORMAT_B8G8R8A8_UNORM_SRGB; |
| case ISL_FORMAT_R8G8B8X8_UNORM: |
| return ISL_FORMAT_R8G8B8A8_UNORM; |
| case ISL_FORMAT_R8G8B8X8_UNORM_SRGB: |
| return ISL_FORMAT_R8G8B8A8_UNORM_SRGB; |
| case ISL_FORMAT_B10G10R10X2_UNORM: |
| return ISL_FORMAT_B10G10R10A2_UNORM; |
| case ISL_FORMAT_B5G5R5X1_UNORM: |
| return ISL_FORMAT_B5G5R5A1_UNORM; |
| case ISL_FORMAT_B5G5R5X1_UNORM_SRGB: |
| return ISL_FORMAT_B5G5R5A1_UNORM_SRGB; |
| default: |
| assert(!"Invalid RGBX format"); |
| return rgbx; |
| } |
| } |
| |
| static inline void |
| pack_channel(const union isl_color_value *value, unsigned i, |
| const struct isl_channel_layout *layout, |
| enum isl_colorspace colorspace, |
| uint32_t data_out[4]) |
| { |
| if (layout->type == ISL_VOID) |
| return; |
| |
| if (colorspace == ISL_COLORSPACE_SRGB) |
| assert(layout->type == ISL_UNORM); |
| |
| uint32_t packed; |
| switch (layout->type) { |
| case ISL_UNORM: |
| if (colorspace == ISL_COLORSPACE_SRGB) { |
| if (layout->bits == 8) { |
| packed = util_format_linear_float_to_srgb_8unorm(value->f32[i]); |
| } else { |
| float srgb = util_format_linear_to_srgb_float(value->f32[i]); |
| packed = _mesa_float_to_unorm(srgb, layout->bits); |
| } |
| } else { |
| packed = _mesa_float_to_unorm(value->f32[i], layout->bits); |
| } |
| break; |
| case ISL_SNORM: |
| packed = _mesa_float_to_snorm(value->f32[i], layout->bits); |
| break; |
| case ISL_SFLOAT: |
| assert(layout->bits == 16 || layout->bits == 32); |
| if (layout->bits == 16) { |
| packed = _mesa_float_to_half(value->f32[i]); |
| } else { |
| packed = value->u32[i]; |
| } |
| break; |
| case ISL_UINT: |
| packed = MIN(value->u32[i], MAX_UINT(layout->bits)); |
| break; |
| case ISL_SINT: |
| packed = MIN(MAX(value->u32[i], MIN_INT(layout->bits)), |
| MAX_INT(layout->bits)); |
| break; |
| |
| default: |
| unreachable("Invalid channel type"); |
| } |
| |
| unsigned dword = layout->start_bit / 32; |
| unsigned bit = layout->start_bit % 32; |
| assert(bit + layout->bits <= 32); |
| data_out[dword] |= (packed & MAX_UINT(layout->bits)) << bit; |
| } |
| |
| /** |
| * Take an isl_color_value and pack it into the actual bits as specified by |
| * the isl_format. This function is very slow for a format conversion |
| * function but should be fine for a single pixel worth of data. |
| */ |
| void |
| isl_color_value_pack(const union isl_color_value *value, |
| enum isl_format format, |
| uint32_t *data_out) |
| { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| assert(fmtl->colorspace == ISL_COLORSPACE_LINEAR || |
| fmtl->colorspace == ISL_COLORSPACE_SRGB); |
| assert(!isl_format_is_compressed(format)); |
| |
| memset(data_out, 0, isl_align(fmtl->bpb, 32) / 8); |
| |
| if (format == ISL_FORMAT_R9G9B9E5_SHAREDEXP) { |
| data_out[0] = float3_to_rgb9e5(value->f32); |
| return; |
| } else if (format == ISL_FORMAT_R11G11B10_FLOAT) { |
| data_out[0] = float3_to_r11g11b10f(value->f32); |
| return; |
| } |
| |
| pack_channel(value, 0, &fmtl->channels.r, fmtl->colorspace, data_out); |
| pack_channel(value, 1, &fmtl->channels.g, fmtl->colorspace, data_out); |
| pack_channel(value, 2, &fmtl->channels.b, fmtl->colorspace, data_out); |
| pack_channel(value, 3, &fmtl->channels.a, ISL_COLORSPACE_LINEAR, data_out); |
| pack_channel(value, 0, &fmtl->channels.l, fmtl->colorspace, data_out); |
| pack_channel(value, 0, &fmtl->channels.i, ISL_COLORSPACE_LINEAR, data_out); |
| assert(fmtl->channels.p.bits == 0); |
| } |
| |
| /** Extend an N-bit signed integer to 32 bits */ |
| static inline int32_t |
| sign_extend(int32_t x, unsigned bits) |
| { |
| if (bits < 32) { |
| unsigned shift = 32 - bits; |
| return (x << shift) >> shift; |
| } else { |
| return x; |
| } |
| } |
| |
| static inline void |
| unpack_channel(union isl_color_value *value, |
| unsigned start, unsigned count, |
| const struct isl_channel_layout *layout, |
| enum isl_colorspace colorspace, |
| const uint32_t *data_in) |
| { |
| if (layout->type == ISL_VOID) |
| return; |
| |
| unsigned dword = layout->start_bit / 32; |
| unsigned bit = layout->start_bit % 32; |
| assert(bit + layout->bits <= 32); |
| uint32_t packed = (data_in[dword] >> bit) & MAX_UINT(layout->bits); |
| |
| union { |
| uint32_t u32; |
| float f32; |
| } unpacked; |
| |
| if (colorspace == ISL_COLORSPACE_SRGB) |
| assert(layout->type == ISL_UNORM); |
| |
| switch (layout->type) { |
| case ISL_UNORM: |
| unpacked.f32 = _mesa_unorm_to_float(packed, layout->bits); |
| if (colorspace == ISL_COLORSPACE_SRGB) { |
| if (layout->bits == 8) { |
| unpacked.f32 = util_format_srgb_8unorm_to_linear_float(packed); |
| } else { |
| float srgb = _mesa_unorm_to_float(packed, layout->bits); |
| unpacked.f32 = util_format_srgb_to_linear_float(srgb); |
| } |
| } else { |
| unpacked.f32 = _mesa_unorm_to_float(packed, layout->bits); |
| } |
| break; |
| case ISL_SNORM: |
| unpacked.f32 = _mesa_snorm_to_float(sign_extend(packed, layout->bits), |
| layout->bits); |
| break; |
| case ISL_SFLOAT: |
| assert(layout->bits == 16 || layout->bits == 32); |
| if (layout->bits == 16) { |
| unpacked.f32 = _mesa_half_to_float(packed); |
| } else { |
| unpacked.u32 = packed; |
| } |
| break; |
| case ISL_UINT: |
| unpacked.u32 = packed; |
| break; |
| case ISL_SINT: |
| unpacked.u32 = sign_extend(packed, layout->bits); |
| break; |
| |
| default: |
| unreachable("Invalid channel type"); |
| } |
| |
| for (unsigned i = 0; i < count; i++) |
| value->u32[start + i] = unpacked.u32; |
| } |
| |
| /** |
| * Take unpack an isl_color_value from the actual bits as specified by |
| * the isl_format. This function is very slow for a format conversion |
| * function but should be fine for a single pixel worth of data. |
| */ |
| void |
| isl_color_value_unpack(union isl_color_value *value, |
| enum isl_format format, |
| const uint32_t data_in[4]) |
| { |
| const struct isl_format_layout *fmtl = isl_format_get_layout(format); |
| assert(fmtl->colorspace == ISL_COLORSPACE_LINEAR || |
| fmtl->colorspace == ISL_COLORSPACE_SRGB); |
| assert(!isl_format_is_compressed(format)); |
| |
| /* Default to opaque black. */ |
| memset(value, 0, sizeof(*value)); |
| if (isl_format_has_int_channel(format)) { |
| value->u32[3] = 1u; |
| } else { |
| value->f32[3] = 1.0f; |
| } |
| |
| if (format == ISL_FORMAT_R9G9B9E5_SHAREDEXP) { |
| rgb9e5_to_float3(data_in[0], value->f32); |
| return; |
| } else if (format == ISL_FORMAT_R11G11B10_FLOAT) { |
| r11g11b10f_to_float3(data_in[0], value->f32); |
| return; |
| } |
| |
| unpack_channel(value, 0, 1, &fmtl->channels.r, fmtl->colorspace, data_in); |
| unpack_channel(value, 1, 1, &fmtl->channels.g, fmtl->colorspace, data_in); |
| unpack_channel(value, 2, 1, &fmtl->channels.b, fmtl->colorspace, data_in); |
| unpack_channel(value, 3, 1, &fmtl->channels.a, ISL_COLORSPACE_LINEAR, data_in); |
| unpack_channel(value, 0, 3, &fmtl->channels.l, fmtl->colorspace, data_in); |
| unpack_channel(value, 0, 4, &fmtl->channels.i, ISL_COLORSPACE_LINEAR, data_in); |
| assert(fmtl->channels.p.bits == 0); |
| } |