diff options
Diffstat (limited to 'lib/mesa/src/gallium/drivers/vc5/vc5_formats.c')
| -rw-r--r-- | lib/mesa/src/gallium/drivers/vc5/vc5_formats.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/lib/mesa/src/gallium/drivers/vc5/vc5_formats.c b/lib/mesa/src/gallium/drivers/vc5/vc5_formats.c new file mode 100644 index 000000000..114f2d741 --- /dev/null +++ b/lib/mesa/src/gallium/drivers/vc5/vc5_formats.c @@ -0,0 +1,416 @@ +/* + * Copyright © 2014-2017 Broadcom + * + * 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. + */ + +/** + * @file vc5_formats.c + * + * Contains the table and accessors for VC5 texture and render target format + * support. + * + * The hardware has limited support for texture formats, and extremely limited + * support for render target formats. As a result, we emulate other formats + * in our shader code, and this stores the table for doing so. + */ + +#include "util/u_format.h" +#include "util/macros.h" + +#include "vc5_context.h" +#include "broadcom/cle/v3d_packet_v33_pack.h" + +#define OUTPUT_IMAGE_FORMAT_NO 255 + +struct vc5_format { + /** Set if the pipe format is defined in the table. */ + bool present; + + /** One of V3D33_OUTPUT_IMAGE_FORMAT_*, or OUTPUT_IMAGE_FORMAT_NO */ + uint8_t rt_type; + + /** One of V3D33_TEXTURE_DATA_FORMAT_*. */ + uint8_t tex_type; + + /** + * Swizzle to apply to the RGBA shader output for storing to the tile + * buffer, to the RGBA tile buffer to produce shader input (for + * blending), and for turning the rgba8888 texture sampler return + * value into shader rgba values. + */ + uint8_t swizzle[4]; + + /* Whether the return value is 16F/I/UI or 32F/I/UI. */ + uint8_t return_size; + + /* If return_size == 32, how many channels are returned by texturing. + * 16 always returns 2 pairs of 16 bit values. + */ + uint8_t return_channels; +}; + +#define SWIZ(x,y,z,w) { \ + PIPE_SWIZZLE_##x, \ + PIPE_SWIZZLE_##y, \ + PIPE_SWIZZLE_##z, \ + PIPE_SWIZZLE_##w \ +} + +#define FORMAT(pipe, rt, tex, swiz, return_size, return_channels) \ + [PIPE_FORMAT_##pipe] = { \ + true, \ + OUTPUT_IMAGE_FORMAT_##rt, \ + TEXTURE_DATA_FORMAT_##tex, \ + swiz, \ + return_size, \ + return_channels, \ + } + +#define SWIZ_X001 SWIZ(X, 0, 0, 1) +#define SWIZ_XY01 SWIZ(X, Y, 0, 1) +#define SWIZ_XYZ1 SWIZ(X, Y, Z, 1) +#define SWIZ_XYZW SWIZ(X, Y, Z, W) +#define SWIZ_YZWX SWIZ(Y, Z, W, X) +#define SWIZ_YZW1 SWIZ(Y, Z, W, 1) +#define SWIZ_ZYXW SWIZ(Z, Y, X, W) +#define SWIZ_ZYX1 SWIZ(Z, Y, X, 1) +#define SWIZ_XXXY SWIZ(X, X, X, Y) +#define SWIZ_XXX1 SWIZ(X, X, X, 1) +#define SWIZ_XXXX SWIZ(X, X, X, X) +#define SWIZ_000X SWIZ(0, 0, 0, X) + +static const struct vc5_format vc5_format_table[] = { + FORMAT(B8G8R8A8_UNORM, RGBA8, RGBA8, SWIZ_ZYXW, 16, 0), + FORMAT(B8G8R8X8_UNORM, RGBX8, RGBA8, SWIZ_ZYX1, 16, 0), + FORMAT(B8G8R8A8_SRGB, SRGB8_ALPHA8, RGBA8, SWIZ_ZYXW, 16, 0), + FORMAT(B8G8R8X8_SRGB, SRGBX8, RGBA8, SWIZ_ZYX1, 16, 0), + FORMAT(R8G8B8A8_UNORM, RGBA8, RGBA8, SWIZ_XYZW, 16, 0), + FORMAT(R8G8B8X8_UNORM, RGBX8, RGBA8, SWIZ_XYZ1, 16, 0), + FORMAT(R8G8B8A8_SNORM, NO, RGBA8_SNORM, SWIZ_XYZW, 16, 0), + FORMAT(R8G8B8X8_SNORM, NO, RGBA8_SNORM, SWIZ_XYZ1, 16, 0), + FORMAT(B10G10R10A2_UNORM, RGB10_A2, RGB10_A2, SWIZ_ZYXW, 16, 0), + + FORMAT(B4G4R4A4_UNORM, ABGR4444, RGBA4, SWIZ_YZWX, 16, 0), + FORMAT(B4G4R4X4_UNORM, ABGR4444, RGBA4, SWIZ_YZW1, 16, 0), + + FORMAT(A1B5G5R5_UNORM, ABGR1555, RGB5_A1, SWIZ_XYZW, 16, 0), + FORMAT(X1B5G5R5_UNORM, ABGR1555, RGB5_A1, SWIZ_XYZ1, 16, 0), + FORMAT(B5G6R5_UNORM, BGR565, RGB565, SWIZ_XYZ1, 16, 0), + + FORMAT(R8_UNORM, R8, R8, SWIZ_X001, 16, 0), + FORMAT(R8_SNORM, NO, R8_SNORM, SWIZ_X001, 16, 0), + FORMAT(R8G8_UNORM, RG8, RG8, SWIZ_XY01, 16, 0), + FORMAT(R8G8_SNORM, NO, RG8_SNORM, SWIZ_XY01, 16, 0), + + FORMAT(R16_UNORM, NO, R16, SWIZ_X001, 32, 1), + FORMAT(R16_SNORM, NO, R16_SNORM, SWIZ_X001, 32, 1), + FORMAT(R16_FLOAT, R16F, R16F, SWIZ_X001, 16, 0), + FORMAT(R32_FLOAT, R32F, R32F, SWIZ_X001, 32, 1), + + FORMAT(R16G16_UNORM, NO, RG16, SWIZ_XY01, 32, 2), + FORMAT(R16G16_SNORM, NO, RG16_SNORM, SWIZ_XY01, 32, 2), + FORMAT(R16G16_FLOAT, RG16F, RG16F, SWIZ_XY01, 16, 0), + FORMAT(R32G32_FLOAT, RG32F, RG32F, SWIZ_XY01, 32, 2), + + FORMAT(R16G16B16A16_UNORM, NO, RGBA16, SWIZ_XYZW, 32, 4), + FORMAT(R16G16B16A16_SNORM, NO, RGBA16_SNORM, SWIZ_XYZW, 32, 4), + FORMAT(R16G16B16A16_FLOAT, RGBA16F, RGBA16F, SWIZ_XYZW, 16, 0), + FORMAT(R32G32B32A32_FLOAT, RGBA32F, RGBA32F, SWIZ_XYZW, 32, 4), + + /* If we don't have L/A/LA16, mesa/st will fall back to RGBA16. */ + FORMAT(L16_UNORM, NO, R16, SWIZ_XXX1, 32, 1), + FORMAT(L16_SNORM, NO, R16_SNORM, SWIZ_XXX1, 32, 1), + FORMAT(I16_UNORM, NO, R16, SWIZ_XXXX, 32, 1), + FORMAT(I16_SNORM, NO, R16_SNORM, SWIZ_XXXX, 32, 1), + FORMAT(A16_UNORM, NO, R16, SWIZ_000X, 32, 1), + FORMAT(A16_SNORM, NO, R16_SNORM, SWIZ_000X, 32, 1), + FORMAT(L16A16_UNORM, NO, RG16, SWIZ_XXXY, 32, 2), + FORMAT(L16A16_SNORM, NO, RG16_SNORM, SWIZ_XXXY, 32, 2), + + FORMAT(A8_UNORM, NO, R8, SWIZ_000X, 16, 0), + FORMAT(L8_UNORM, NO, R8, SWIZ_XXX1, 16, 0), + FORMAT(I8_UNORM, NO, R8, SWIZ_XXXX, 16, 0), + FORMAT(L8A8_UNORM, NO, RG8, SWIZ_XXXY, 16, 0), + + FORMAT(R8_SINT, R8I, S8, SWIZ_X001, 16, 0), + FORMAT(R8_UINT, R8UI, S8, SWIZ_X001, 16, 0), + FORMAT(R8G8_SINT, RG8I, S16, SWIZ_XY01, 16, 0), + FORMAT(R8G8_UINT, RG8UI, S16, SWIZ_XY01, 16, 0), + FORMAT(R8G8B8A8_SINT, RGBA8I, R32F, SWIZ_XYZW, 16, 0), + FORMAT(R8G8B8A8_UINT, RGBA8UI, R32F, SWIZ_XYZW, 16, 0), + + FORMAT(R16_SINT, R16I, S16, SWIZ_X001, 16, 0), + FORMAT(R16_UINT, R16UI, S16, SWIZ_X001, 16, 0), + FORMAT(R16G16_SINT, RG16I, R32F, SWIZ_XY01, 16, 0), + FORMAT(R16G16_UINT, RG16UI, R32F, SWIZ_XY01, 16, 0), + FORMAT(R16G16B16A16_SINT, RGBA16I, RG32F, SWIZ_XYZW, 16, 0), + FORMAT(R16G16B16A16_UINT, RGBA16UI, RG32F, SWIZ_XYZW, 16, 0), + + FORMAT(R32_SINT, R32I, R32F, SWIZ_X001, 16, 0), + FORMAT(R32_UINT, R32UI, R32F, SWIZ_X001, 16, 0), + FORMAT(R32G32_SINT, RG32I, RG32F, SWIZ_XY01, 16, 0), + FORMAT(R32G32_UINT, RG32UI, RG32F, SWIZ_XY01, 16, 0), + FORMAT(R32G32B32A32_SINT, RGBA32I, RGBA32F, SWIZ_XYZW, 16, 0), + FORMAT(R32G32B32A32_UINT, RGBA32UI, RGBA32F, SWIZ_XYZW, 16, 0), + + FORMAT(A8_SINT, R8I, S8, SWIZ_000X, 16, 0), + FORMAT(A8_UINT, R8UI, S8, SWIZ_000X, 16, 0), + FORMAT(A16_SINT, R16I, S16, SWIZ_000X, 16, 0), + FORMAT(A16_UINT, R16UI, S16, SWIZ_000X, 16, 0), + FORMAT(A32_SINT, R32I, R32F, SWIZ_000X, 16, 0), + FORMAT(A32_UINT, R32UI, R32F, SWIZ_000X, 16, 0), + + FORMAT(R11G11B10_FLOAT, R11F_G11F_B10F, R11F_G11F_B10F, SWIZ_XYZW, 16, 0), + FORMAT(R9G9B9E5_FLOAT, NO, RGB9_E5, SWIZ_XYZW, 16, 0), + + FORMAT(S8_UINT_Z24_UNORM, DEPTH24_STENCIL8, DEPTH24_X8, SWIZ_X001, 32, 1), + FORMAT(X8Z24_UNORM, DEPTH_COMPONENT24, DEPTH24_X8, SWIZ_X001, 32, 1), + FORMAT(S8X24_UINT, NO, R32F, SWIZ_X001, 32, 1), + FORMAT(Z32_FLOAT, DEPTH_COMPONENT32F, R32F, SWIZ_X001, 32, 1), + FORMAT(Z16_UNORM, DEPTH_COMPONENT16, DEPTH_COMP16, SWIZ_X001, 32, 1), + + /* Pretend we support this, but it'll be separate Z32F depth and S8. */ + FORMAT(Z32_FLOAT_S8X24_UINT, DEPTH_COMPONENT32F, R32F, SWIZ_X001, 32, 1), + + FORMAT(ETC2_RGB8, NO, RGB8_ETC2, SWIZ_XYZ1, 16, 0), + FORMAT(ETC2_SRGB8, NO, RGB8_ETC2, SWIZ_XYZ1, 16, 0), + FORMAT(ETC2_RGB8A1, NO, RGB8_PUNCHTHROUGH_ALPHA1, SWIZ_XYZW, 16, 0), + FORMAT(ETC2_SRGB8A1, NO, RGB8_PUNCHTHROUGH_ALPHA1, SWIZ_XYZW, 16, 0), + FORMAT(ETC2_RGBA8, NO, RGBA8_ETC2_EAC, SWIZ_XYZW, 16, 0), + FORMAT(ETC2_R11_UNORM, NO, R11_EAC, SWIZ_X001, 16, 0), + FORMAT(ETC2_R11_SNORM, NO, SIGNED_R11_EAC, SWIZ_X001, 16, 0), + FORMAT(ETC2_RG11_UNORM, NO, RG11_EAC, SWIZ_XY01, 16, 0), + FORMAT(ETC2_RG11_SNORM, NO, SIGNED_RG11_EAC, SWIZ_XY01, 16, 0), + + FORMAT(DXT1_RGB, NO, BC1, SWIZ_XYZ1, 16, 0), + FORMAT(DXT3_RGBA, NO, BC2, SWIZ_XYZ1, 16, 0), + FORMAT(DXT5_RGBA, NO, BC3, SWIZ_XYZ1, 16, 0), +}; + +static const struct vc5_format * +get_format(enum pipe_format f) +{ + if (f >= ARRAY_SIZE(vc5_format_table) || + !vc5_format_table[f].present) + return NULL; + else + return &vc5_format_table[f]; +} + +bool +vc5_rt_format_supported(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + if (!vf) + return false; + + return vf->rt_type != OUTPUT_IMAGE_FORMAT_NO; +} + +uint8_t +vc5_get_rt_format(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + if (!vf) + return 0; + + return vf->rt_type; +} + +bool +vc5_tex_format_supported(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + return vf != NULL; +} + +uint8_t +vc5_get_tex_format(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + if (!vf) + return 0; + + return vf->tex_type; +} + +uint8_t +vc5_get_tex_return_size(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + if (!vf) + return 0; + + return vf->return_size; +} + +uint8_t +vc5_get_tex_return_channels(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + + if (!vf) + return 0; + + return vf->return_channels; +} + +const uint8_t * +vc5_get_format_swizzle(enum pipe_format f) +{ + const struct vc5_format *vf = get_format(f); + static const uint8_t fallback[] = {0, 1, 2, 3}; + + if (!vf) + return fallback; + + return vf->swizzle; +} + +void +vc5_get_internal_type_bpp_for_output_format(uint32_t format, + uint32_t *type, + uint32_t *bpp) +{ + switch (format) { + case OUTPUT_IMAGE_FORMAT_RGBA8: + case OUTPUT_IMAGE_FORMAT_RGBX8: + case OUTPUT_IMAGE_FORMAT_RGB8: + case OUTPUT_IMAGE_FORMAT_RG8: + case OUTPUT_IMAGE_FORMAT_R8: + case OUTPUT_IMAGE_FORMAT_ABGR4444: + case OUTPUT_IMAGE_FORMAT_BGR565: + case OUTPUT_IMAGE_FORMAT_ABGR1555: + *type = INTERNAL_TYPE_8; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA8I: + case OUTPUT_IMAGE_FORMAT_RG8I: + case OUTPUT_IMAGE_FORMAT_R8I: + *type = INTERNAL_TYPE_8I; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA8UI: + case OUTPUT_IMAGE_FORMAT_RG8UI: + case OUTPUT_IMAGE_FORMAT_R8UI: + *type = INTERNAL_TYPE_8UI; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_SRGB8_ALPHA8: + case OUTPUT_IMAGE_FORMAT_SRGB: + case OUTPUT_IMAGE_FORMAT_RGB10_A2: + case OUTPUT_IMAGE_FORMAT_R11F_G11F_B10F: + case OUTPUT_IMAGE_FORMAT_SRGBX8: + case OUTPUT_IMAGE_FORMAT_RGBA16F: + /* Note that sRGB RTs are stored in the tile buffer at 16F, + * and the conversion to sRGB happens at tilebuffer + * load/store. + */ + *type = INTERNAL_TYPE_16F; + *bpp = INTERNAL_BPP_64; + break; + + case OUTPUT_IMAGE_FORMAT_RG16F: + case OUTPUT_IMAGE_FORMAT_R16F: + *type = INTERNAL_TYPE_16F; + /* Use 64bpp to make sure the TLB doesn't throw away the alpha + * channel before alpha test happens. + */ + *bpp = INTERNAL_BPP_64; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA16I: + *type = INTERNAL_TYPE_16I; + *bpp = INTERNAL_BPP_64; + break; + case OUTPUT_IMAGE_FORMAT_RG16I: + case OUTPUT_IMAGE_FORMAT_R16I: + *type = INTERNAL_TYPE_16I; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA16UI: + *type = INTERNAL_TYPE_16UI; + *bpp = INTERNAL_BPP_64; + break; + case OUTPUT_IMAGE_FORMAT_RG16UI: + case OUTPUT_IMAGE_FORMAT_R16UI: + *type = INTERNAL_TYPE_16UI; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA32I: + *type = INTERNAL_TYPE_32I; + *bpp = INTERNAL_BPP_128; + break; + case OUTPUT_IMAGE_FORMAT_RG32I: + *type = INTERNAL_TYPE_32I; + *bpp = INTERNAL_BPP_64; + break; + case OUTPUT_IMAGE_FORMAT_R32I: + *type = INTERNAL_TYPE_32I; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA32UI: + *type = INTERNAL_TYPE_32UI; + *bpp = INTERNAL_BPP_128; + break; + case OUTPUT_IMAGE_FORMAT_RG32UI: + *type = INTERNAL_TYPE_32UI; + *bpp = INTERNAL_BPP_64; + break; + case OUTPUT_IMAGE_FORMAT_R32UI: + *type = INTERNAL_TYPE_32UI; + *bpp = INTERNAL_BPP_32; + break; + + case OUTPUT_IMAGE_FORMAT_RGBA32F: + *type = INTERNAL_TYPE_32F; + *bpp = INTERNAL_BPP_128; + break; + case OUTPUT_IMAGE_FORMAT_RG32F: + *type = INTERNAL_TYPE_32F; + *bpp = INTERNAL_BPP_64; + break; + case OUTPUT_IMAGE_FORMAT_R32F: + *type = INTERNAL_TYPE_32F; + *bpp = INTERNAL_BPP_32; + break; + + default: + /* Provide some default values, as we'll be called at RB + * creation time, even if an RB with this format isn't + * supported. + */ + *type = INTERNAL_TYPE_8; + *bpp = INTERNAL_BPP_32; + break; + } +} |