/* * 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(B5G5R5A1_UNORM, NO, RGB5_A1, SWIZ_YZWX, 16, 0), FORMAT(B5G5R5X1_UNORM, NO, RGB5_A1, SWIZ_YZW1, 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; } }