diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h | 1204 |
1 files changed, 1204 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h new file mode 100644 index 000000000000..58704f0a4607 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h @@ -0,0 +1,1204 @@ +/************************************************************************** + * + * Copyright © 2008-2015 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +#ifdef __KERNEL__ + +#include <drm/vmwgfx_drm.h> +#define surf_size_struct struct drm_vmw_size + +#else /* __KERNEL__ */ + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(_A) (sizeof(_A) / sizeof((_A)[0])) +#endif /* ARRAY_SIZE */ + +#define DIV_ROUND_UP(x, y) (((x) + (y) - 1) / (y)) +#define max_t(type, x, y) ((x) > (y) ? (x) : (y)) +#define surf_size_struct SVGA3dSize +#define u32 uint32 + +#endif /* __KERNEL__ */ + +#include "svga3d_reg.h" + +/* + * enum svga3d_block_desc describes the active data channels in a block. + * + * There can be at-most four active channels in a block: + * 1. Red, bump W, luminance and depth are stored in the first channel. + * 2. Green, bump V and stencil are stored in the second channel. + * 3. Blue and bump U are stored in the third channel. + * 4. Alpha and bump Q are stored in the fourth channel. + * + * Block channels can be used to store compressed and buffer data: + * 1. For compressed formats, only the data channel is used and its size + * is equal to that of a singular block in the compression scheme. + * 2. For buffer formats, only the data channel is used and its size is + * exactly one byte in length. + * 3. In each case the bit depth represent the size of a singular block. + * + * Note: Compressed and IEEE formats do not use the bitMask structure. + */ + +enum svga3d_block_desc { + SVGA3DBLOCKDESC_NONE = 0, /* No channels are active */ + SVGA3DBLOCKDESC_BLUE = 1 << 0, /* Block with red channel + data */ + SVGA3DBLOCKDESC_U = 1 << 0, /* Block with bump U channel + data */ + SVGA3DBLOCKDESC_UV_VIDEO = 1 << 7, /* Block with alternating video + U and V */ + SVGA3DBLOCKDESC_GREEN = 1 << 1, /* Block with green channel + data */ + SVGA3DBLOCKDESC_V = 1 << 1, /* Block with bump V channel + data */ + SVGA3DBLOCKDESC_STENCIL = 1 << 1, /* Block with a stencil + channel */ + SVGA3DBLOCKDESC_RED = 1 << 2, /* Block with blue channel + data */ + SVGA3DBLOCKDESC_W = 1 << 2, /* Block with bump W channel + data */ + SVGA3DBLOCKDESC_LUMINANCE = 1 << 2, /* Block with luminance channel + data */ + SVGA3DBLOCKDESC_Y = 1 << 2, /* Block with video luminance + data */ + SVGA3DBLOCKDESC_DEPTH = 1 << 2, /* Block with depth channel */ + SVGA3DBLOCKDESC_ALPHA = 1 << 3, /* Block with an alpha + channel */ + SVGA3DBLOCKDESC_Q = 1 << 3, /* Block with bump Q channel + data */ + SVGA3DBLOCKDESC_BUFFER = 1 << 4, /* Block stores 1 byte of + data */ + SVGA3DBLOCKDESC_COMPRESSED = 1 << 5, /* Block stores n bytes of + data depending on the + compression method used */ + SVGA3DBLOCKDESC_IEEE_FP = 1 << 6, /* Block stores data in an IEEE + floating point + representation in + all channels */ + SVGA3DBLOCKDESC_PLANAR_YUV = 1 << 8, /* Three separate blocks store + data. */ + SVGA3DBLOCKDESC_U_VIDEO = 1 << 9, /* Block with U video data */ + SVGA3DBLOCKDESC_V_VIDEO = 1 << 10, /* Block with V video data */ + SVGA3DBLOCKDESC_EXP = 1 << 11, /* Shared exponent */ + SVGA3DBLOCKDESC_SRGB = 1 << 12, /* Data is in sRGB format */ + SVGA3DBLOCKDESC_2PLANAR_YUV = 1 << 13, /* 2 planes of Y, UV, + e.g., NV12. */ + SVGA3DBLOCKDESC_3PLANAR_YUV = 1 << 14, /* 3 planes of separate + Y, U, V, e.g., YV12. */ + + SVGA3DBLOCKDESC_RG = SVGA3DBLOCKDESC_RED | + SVGA3DBLOCKDESC_GREEN, + SVGA3DBLOCKDESC_RGB = SVGA3DBLOCKDESC_RG | + SVGA3DBLOCKDESC_BLUE, + SVGA3DBLOCKDESC_RGB_SRGB = SVGA3DBLOCKDESC_RGB | + SVGA3DBLOCKDESC_SRGB, + SVGA3DBLOCKDESC_RGBA = SVGA3DBLOCKDESC_RGB | + SVGA3DBLOCKDESC_ALPHA, + SVGA3DBLOCKDESC_RGBA_SRGB = SVGA3DBLOCKDESC_RGBA | + SVGA3DBLOCKDESC_SRGB, + SVGA3DBLOCKDESC_UV = SVGA3DBLOCKDESC_U | + SVGA3DBLOCKDESC_V, + SVGA3DBLOCKDESC_UVL = SVGA3DBLOCKDESC_UV | + SVGA3DBLOCKDESC_LUMINANCE, + SVGA3DBLOCKDESC_UVW = SVGA3DBLOCKDESC_UV | + SVGA3DBLOCKDESC_W, + SVGA3DBLOCKDESC_UVWA = SVGA3DBLOCKDESC_UVW | + SVGA3DBLOCKDESC_ALPHA, + SVGA3DBLOCKDESC_UVWQ = SVGA3DBLOCKDESC_U | + SVGA3DBLOCKDESC_V | + SVGA3DBLOCKDESC_W | + SVGA3DBLOCKDESC_Q, + SVGA3DBLOCKDESC_LA = SVGA3DBLOCKDESC_LUMINANCE | + SVGA3DBLOCKDESC_ALPHA, + SVGA3DBLOCKDESC_R_FP = SVGA3DBLOCKDESC_RED | + SVGA3DBLOCKDESC_IEEE_FP, + SVGA3DBLOCKDESC_RG_FP = SVGA3DBLOCKDESC_R_FP | + SVGA3DBLOCKDESC_GREEN, + SVGA3DBLOCKDESC_RGB_FP = SVGA3DBLOCKDESC_RG_FP | + SVGA3DBLOCKDESC_BLUE, + SVGA3DBLOCKDESC_RGBA_FP = SVGA3DBLOCKDESC_RGB_FP | + SVGA3DBLOCKDESC_ALPHA, + SVGA3DBLOCKDESC_DS = SVGA3DBLOCKDESC_DEPTH | + SVGA3DBLOCKDESC_STENCIL, + SVGA3DBLOCKDESC_YUV = SVGA3DBLOCKDESC_UV_VIDEO | + SVGA3DBLOCKDESC_Y, + SVGA3DBLOCKDESC_AYUV = SVGA3DBLOCKDESC_ALPHA | + SVGA3DBLOCKDESC_Y | + SVGA3DBLOCKDESC_U_VIDEO | + SVGA3DBLOCKDESC_V_VIDEO, + SVGA3DBLOCKDESC_RGBE = SVGA3DBLOCKDESC_RGB | + SVGA3DBLOCKDESC_EXP, + SVGA3DBLOCKDESC_COMPRESSED_SRGB = SVGA3DBLOCKDESC_COMPRESSED | + SVGA3DBLOCKDESC_SRGB, + SVGA3DBLOCKDESC_NV12 = SVGA3DBLOCKDESC_PLANAR_YUV | + SVGA3DBLOCKDESC_2PLANAR_YUV, + SVGA3DBLOCKDESC_YV12 = SVGA3DBLOCKDESC_PLANAR_YUV | + SVGA3DBLOCKDESC_3PLANAR_YUV, +}; + +/* + * SVGA3dSurfaceDesc describes the actual pixel data. + * + * This structure provides the following information: + * 1. Block description. + * 2. Dimensions of a block in the surface. + * 3. Size of block in bytes. + * 4. Bit depth of the pixel data. + * 5. Channel bit depths and masks (if applicable). + */ +struct svga3d_channel_def { + union { + u8 blue; + u8 u; + u8 uv_video; + u8 u_video; + }; + union { + u8 green; + u8 v; + u8 stencil; + u8 v_video; + }; + union { + u8 red; + u8 w; + u8 luminance; + u8 y; + u8 depth; + u8 data; + }; + union { + u8 alpha; + u8 q; + u8 exp; + }; +}; + +struct svga3d_surface_desc { + SVGA3dSurfaceFormat format; + enum svga3d_block_desc block_desc; + surf_size_struct block_size; + u32 bytes_per_block; + u32 pitch_bytes_per_block; + + u32 total_bit_depth; + struct svga3d_channel_def bit_depth; + struct svga3d_channel_def bit_offset; +}; + +static const struct svga3d_surface_desc svga3d_surface_descs[] = { + {SVGA3D_FORMAT_INVALID, SVGA3DBLOCKDESC_NONE, + {1, 1, 1}, 0, 0, + 0, {{0}, {0}, {0}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_X8R8G8B8, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 4, 4, + 24, {{8}, {8}, {8}, {0}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_A8R8G8B8, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_R5G6B5, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 2, 2, + 16, {{5}, {6}, {5}, {0}}, + {{0}, {5}, {11}, {0}}}, + + {SVGA3D_X1R5G5B5, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 2, 2, + 15, {{5}, {5}, {5}, {0}}, + {{0}, {5}, {10}, {0}}}, + + {SVGA3D_A1R5G5B5, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 2, 2, + 16, {{5}, {5}, {5}, {1}}, + {{0}, {5}, {10}, {15}}}, + + {SVGA3D_A4R4G4B4, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 2, 2, + 16, {{4}, {4}, {4}, {4}}, + {{0}, {4}, {8}, {12}}}, + + {SVGA3D_Z_D32, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_Z_D16, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_Z_D24S8, SVGA3DBLOCKDESC_DS, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_Z_D15S1, SVGA3DBLOCKDESC_DS, + {1, 1, 1}, 2, 2, + 16, {{0}, {1}, {15}, {0}}, + {{0}, {15}, {0}, {0}}}, + + {SVGA3D_LUMINANCE8, SVGA3DBLOCKDESC_LUMINANCE, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_LUMINANCE4_ALPHA4, SVGA3DBLOCKDESC_LA, + {1 , 1, 1}, 1, 1, + 8, {{0}, {0}, {4}, {4}}, + {{0}, {0}, {0}, {4}}}, + + {SVGA3D_LUMINANCE16, SVGA3DBLOCKDESC_LUMINANCE, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_LUMINANCE8_ALPHA8, SVGA3DBLOCKDESC_LA, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {8}, {8}}, + {{0}, {0}, {0}, {8}}}, + + {SVGA3D_DXT1, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_DXT2, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_DXT3, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_DXT4, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_DXT5, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BUMPU8V8, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {8}, {8}}, + {{0}, {0}, {0}, {8}}}, + + {SVGA3D_BUMPL6V5U5, SVGA3DBLOCKDESC_UVL, + {1, 1, 1}, 2, 2, + 16, {{5}, {5}, {6}, {0}}, + {{11}, {6}, {0}, {0}}}, + + {SVGA3D_BUMPX8L8V8U8, SVGA3DBLOCKDESC_UVL, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {0}}, + {{16}, {8}, {0}, {0}}}, + + {SVGA3D_BUMPL8V8U8, SVGA3DBLOCKDESC_UVL, + {1, 1, 1}, 3, 3, + 24, {{8}, {8}, {8}, {0}}, + {{16}, {8}, {0}, {0}}}, + + {SVGA3D_ARGB_S10E5, SVGA3DBLOCKDESC_RGBA_FP, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_ARGB_S23E8, SVGA3DBLOCKDESC_RGBA_FP, + {1, 1, 1}, 16, 16, + 128, {{32}, {32}, {32}, {32}}, + {{64}, {32}, {0}, {96}}}, + + {SVGA3D_A2R10G10B10, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_V8U8, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 2, 2, + 16, {{8}, {8}, {0}, {0}}, + {{8}, {0}, {0}, {0}}}, + + {SVGA3D_Q8W8V8U8, SVGA3DBLOCKDESC_UVWQ, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{24}, {16}, {8}, {0}}}, + + {SVGA3D_CxV8U8, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 2, 2, + 16, {{8}, {8}, {0}, {0}}, + {{8}, {0}, {0}, {0}}}, + + {SVGA3D_X8L8V8U8, SVGA3DBLOCKDESC_UVL, + {1, 1, 1}, 4, 4, + 24, {{8}, {8}, {8}, {0}}, + {{16}, {8}, {0}, {0}}}, + + {SVGA3D_A2W10V10U10, SVGA3DBLOCKDESC_UVWA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_ALPHA8, SVGA3DBLOCKDESC_ALPHA, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {0}, {8}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R_S10E5, SVGA3DBLOCKDESC_R_FP, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R_S23E8, SVGA3DBLOCKDESC_R_FP, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_RG_S10E5, SVGA3DBLOCKDESC_RG_FP, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {16}, {0}, {0}}}, + + {SVGA3D_RG_S23E8, SVGA3DBLOCKDESC_RG_FP, + {1, 1, 1}, 8, 8, + 64, {{0}, {32}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_BUFFER, SVGA3DBLOCKDESC_BUFFER, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_Z_D24X8, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_V16U16, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 4, 4, + 32, {{16}, {16}, {0}, {0}}, + {{16}, {0}, {0}, {0}}}, + + {SVGA3D_G16R16, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {0}, {16}, {0}}}, + + {SVGA3D_A16B16G16R16, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_UYVY, SVGA3DBLOCKDESC_YUV, + {1, 1, 1}, 2, 2, + 16, {{8}, {0}, {8}, {0}}, + {{0}, {0}, {8}, {0}}}, + + {SVGA3D_YUY2, SVGA3DBLOCKDESC_YUV, + {1, 1, 1}, 2, 2, + 16, {{8}, {0}, {8}, {0}}, + {{8}, {0}, {0}, {0}}}, + + {SVGA3D_NV12, SVGA3DBLOCKDESC_NV12, + {2, 2, 1}, 6, 2, + 48, {{0}, {0}, {48}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_AYUV, SVGA3DBLOCKDESC_AYUV, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_R32G32B32A32_TYPELESS, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 16, 16, + 128, {{32}, {32}, {32}, {32}}, + {{64}, {32}, {0}, {96}}}, + + {SVGA3D_R32G32B32A32_UINT, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 16, 16, + 128, {{32}, {32}, {32}, {32}}, + {{64}, {32}, {0}, {96}}}, + + {SVGA3D_R32G32B32A32_SINT, SVGA3DBLOCKDESC_UVWQ, + {1, 1, 1}, 16, 16, + 128, {{32}, {32}, {32}, {32}}, + {{64}, {32}, {0}, {96}}}, + + {SVGA3D_R32G32B32_TYPELESS, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 12, 12, + 96, {{32}, {32}, {32}, {0}}, + {{64}, {32}, {0}, {0}}}, + + {SVGA3D_R32G32B32_FLOAT, SVGA3DBLOCKDESC_RGB_FP, + {1, 1, 1}, 12, 12, + 96, {{32}, {32}, {32}, {0}}, + {{64}, {32}, {0}, {0}}}, + + {SVGA3D_R32G32B32_UINT, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 12, 12, + 96, {{32}, {32}, {32}, {0}}, + {{64}, {32}, {0}, {0}}}, + + {SVGA3D_R32G32B32_SINT, SVGA3DBLOCKDESC_UVW, + {1, 1, 1}, 12, 12, + 96, {{32}, {32}, {32}, {0}}, + {{64}, {32}, {0}, {0}}}, + + {SVGA3D_R16G16B16A16_TYPELESS, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R16G16B16A16_UINT, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R16G16B16A16_SNORM, SVGA3DBLOCKDESC_UVWQ, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R16G16B16A16_SINT, SVGA3DBLOCKDESC_UVWQ, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R32G32_TYPELESS, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 8, 8, + 64, {{0}, {32}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R32G32_UINT, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 8, 8, + 64, {{0}, {32}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R32G32_SINT, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 8, 8, + 64, {{0}, {32}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R32G8X24_TYPELESS, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 8, 8, + 64, {{0}, {8}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_D32_FLOAT_S8X24_UINT, SVGA3DBLOCKDESC_DS, + {1, 1, 1}, 8, 8, + 64, {{0}, {8}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R32_FLOAT_X8X24_TYPELESS, SVGA3DBLOCKDESC_R_FP, + {1, 1, 1}, 8, 8, + 64, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_X32_TYPELESS_G8X24_UINT, SVGA3DBLOCKDESC_GREEN, + {1, 1, 1}, 8, 8, + 64, {{0}, {8}, {0}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R10G10B10A2_TYPELESS, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_R10G10B10A2_UINT, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_R11G11B10_FLOAT, SVGA3DBLOCKDESC_RGB_FP, + {1, 1, 1}, 4, 4, + 32, {{10}, {11}, {11}, {0}}, + {{0}, {10}, {21}, {0}}}, + + {SVGA3D_R8G8B8A8_TYPELESS, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{16}, {8}, {0}, {24}}}, + + {SVGA3D_R8G8B8A8_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{16}, {8}, {0}, {24}}}, + + {SVGA3D_R8G8B8A8_UNORM_SRGB, SVGA3DBLOCKDESC_RGBA_SRGB, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{16}, {8}, {0}, {24}}}, + + {SVGA3D_R8G8B8A8_UINT, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{16}, {8}, {0}, {24}}}, + + {SVGA3D_R8G8B8A8_SINT, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{16}, {8}, {0}, {24}}}, + + {SVGA3D_R16G16_TYPELESS, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {16}, {0}, {0}}}, + + {SVGA3D_R16G16_UINT, SVGA3DBLOCKDESC_RG_FP, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {16}, {0}, {0}}}, + + {SVGA3D_R16G16_SINT, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {16}, {0}, {0}}}, + + {SVGA3D_R32_TYPELESS, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_D32_FLOAT, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R32_UINT, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R32_SINT, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R24G8_TYPELESS, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_D24_UNORM_S8_UINT, SVGA3DBLOCKDESC_DS, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_R24_UNORM_X8_TYPELESS, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {24}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_X24_TYPELESS_G8_UINT, SVGA3DBLOCKDESC_GREEN, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {0}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_R8G8_TYPELESS, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_R8G8_UNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_R8G8_UINT, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_R8G8_SINT, SVGA3DBLOCKDESC_UV, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_R16_TYPELESS, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R16_UNORM, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R16_UINT, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R16_SNORM, SVGA3DBLOCKDESC_U, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R16_SINT, SVGA3DBLOCKDESC_U, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8_TYPELESS, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8_UNORM, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8_UINT, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8_SNORM, SVGA3DBLOCKDESC_U, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8_SINT, SVGA3DBLOCKDESC_U, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_P8, SVGA3DBLOCKDESC_RED, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {8}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R9G9B9E5_SHAREDEXP, SVGA3DBLOCKDESC_RGBE, + {1, 1, 1}, 4, 4, + 32, {{9}, {9}, {9}, {5}}, + {{18}, {9}, {0}, {27}}}, + + {SVGA3D_R8G8_B8G8_UNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_G8R8_G8B8_UNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{0}, {8}, {8}, {0}}, + {{0}, {8}, {0}, {0}}}, + + {SVGA3D_BC1_TYPELESS, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC1_UNORM_SRGB, SVGA3DBLOCKDESC_COMPRESSED_SRGB, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC2_TYPELESS, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC2_UNORM_SRGB, SVGA3DBLOCKDESC_COMPRESSED_SRGB, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC3_TYPELESS, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC3_UNORM_SRGB, SVGA3DBLOCKDESC_COMPRESSED_SRGB, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC4_TYPELESS, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_ATI1, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC4_SNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC5_TYPELESS, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_ATI2, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC5_SNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R10G10B10_XR_BIAS_A2_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_B8G8R8A8_TYPELESS, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_B8G8R8A8_UNORM_SRGB, SVGA3DBLOCKDESC_RGBA_SRGB, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_B8G8R8X8_TYPELESS, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 4, 4, + 24, {{8}, {8}, {8}, {0}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_B8G8R8X8_UNORM_SRGB, SVGA3DBLOCKDESC_RGB_SRGB, + {1, 1, 1}, 4, 4, + 24, {{8}, {8}, {8}, {0}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_Z_DF16, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_Z_DF24, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_Z_D24S8_INT, SVGA3DBLOCKDESC_DS, + {1, 1, 1}, 4, 4, + 32, {{0}, {8}, {24}, {0}}, + {{0}, {24}, {0}, {0}}}, + + {SVGA3D_YV12, SVGA3DBLOCKDESC_YV12, + {2, 2, 1}, 6, 2, + 48, {{0}, {0}, {48}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R32G32B32A32_FLOAT, SVGA3DBLOCKDESC_RGBA_FP, + {1, 1, 1}, 16, 16, + 128, {{32}, {32}, {32}, {32}}, + {{64}, {32}, {0}, {96}}}, + + {SVGA3D_R16G16B16A16_FLOAT, SVGA3DBLOCKDESC_RGBA_FP, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R16G16B16A16_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 8, 8, + 64, {{16}, {16}, {16}, {16}}, + {{32}, {16}, {0}, {48}}}, + + {SVGA3D_R32G32_FLOAT, SVGA3DBLOCKDESC_RG_FP, + {1, 1, 1}, 8, 8, + 64, {{0}, {32}, {32}, {0}}, + {{0}, {32}, {0}, {0}}}, + + {SVGA3D_R10G10B10A2_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{10}, {10}, {10}, {2}}, + {{0}, {10}, {20}, {30}}}, + + {SVGA3D_R8G8B8A8_SNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{24}, {16}, {8}, {0}}}, + + {SVGA3D_R16G16_FLOAT, SVGA3DBLOCKDESC_RG_FP, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {16}, {0}, {0}}}, + + {SVGA3D_R16G16_UNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 4, 4, + 32, {{0}, {16}, {16}, {0}}, + {{0}, {0}, {16}, {0}}}, + + {SVGA3D_R16G16_SNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 4, 4, + 32, {{16}, {16}, {0}, {0}}, + {{16}, {0}, {0}, {0}}}, + + {SVGA3D_R32_FLOAT, SVGA3DBLOCKDESC_R_FP, + {1, 1, 1}, 4, 4, + 32, {{0}, {0}, {32}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_R8G8_SNORM, SVGA3DBLOCKDESC_RG, + {1, 1, 1}, 2, 2, + 16, {{8}, {8}, {0}, {0}}, + {{8}, {0}, {0}, {0}}}, + + {SVGA3D_R16_FLOAT, SVGA3DBLOCKDESC_R_FP, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_D16_UNORM, SVGA3DBLOCKDESC_DEPTH, + {1, 1, 1}, 2, 2, + 16, {{0}, {0}, {16}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_A8_UNORM, SVGA3DBLOCKDESC_ALPHA, + {1, 1, 1}, 1, 1, + 8, {{0}, {0}, {0}, {8}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC1_UNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC2_UNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC3_UNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_B5G6R5_UNORM, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 2, 2, + 16, {{5}, {6}, {5}, {0}}, + {{0}, {5}, {11}, {0}}}, + + {SVGA3D_B5G5R5A1_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 2, 2, + 16, {{5}, {5}, {5}, {1}}, + {{0}, {5}, {10}, {15}}}, + + {SVGA3D_B8G8R8A8_UNORM, SVGA3DBLOCKDESC_RGBA, + {1, 1, 1}, 4, 4, + 32, {{8}, {8}, {8}, {8}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_B8G8R8X8_UNORM, SVGA3DBLOCKDESC_RGB, + {1, 1, 1}, 4, 4, + 24, {{8}, {8}, {8}, {0}}, + {{0}, {8}, {16}, {24}}}, + + {SVGA3D_BC4_UNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 8, 8, + 64, {{0}, {0}, {64}, {0}}, + {{0}, {0}, {0}, {0}}}, + + {SVGA3D_BC5_UNORM, SVGA3DBLOCKDESC_COMPRESSED, + {4, 4, 1}, 16, 16, + 128, {{0}, {0}, {128}, {0}}, + {{0}, {0}, {0}, {0}}}, + +}; + +static inline u32 clamped_umul32(u32 a, u32 b) +{ + uint64_t tmp = (uint64_t) a*b; + return (tmp > (uint64_t) ((u32) -1)) ? (u32) -1 : tmp; +} + +static inline const struct svga3d_surface_desc * +svga3dsurface_get_desc(SVGA3dSurfaceFormat format) +{ + if (format < ARRAY_SIZE(svga3d_surface_descs)) + return &svga3d_surface_descs[format]; + + return &svga3d_surface_descs[SVGA3D_FORMAT_INVALID]; +} + +/* + *---------------------------------------------------------------------- + * + * svga3dsurface_get_mip_size -- + * + * Given a base level size and the mip level, compute the size of + * the mip level. + * + * Results: + * See above. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static inline surf_size_struct +svga3dsurface_get_mip_size(surf_size_struct base_level, u32 mip_level) +{ + surf_size_struct size; + + size.width = max_t(u32, base_level.width >> mip_level, 1); + size.height = max_t(u32, base_level.height >> mip_level, 1); + size.depth = max_t(u32, base_level.depth >> mip_level, 1); + return size; +} + +static inline void +svga3dsurface_get_size_in_blocks(const struct svga3d_surface_desc *desc, + const surf_size_struct *pixel_size, + surf_size_struct *block_size) +{ + block_size->width = DIV_ROUND_UP(pixel_size->width, + desc->block_size.width); + block_size->height = DIV_ROUND_UP(pixel_size->height, + desc->block_size.height); + block_size->depth = DIV_ROUND_UP(pixel_size->depth, + desc->block_size.depth); +} + +static inline bool +svga3dsurface_is_planar_surface(const struct svga3d_surface_desc *desc) +{ + return (desc->block_desc & SVGA3DBLOCKDESC_PLANAR_YUV) != 0; +} + +static inline u32 +svga3dsurface_calculate_pitch(const struct svga3d_surface_desc *desc, + const surf_size_struct *size) +{ + u32 pitch; + surf_size_struct blocks; + + svga3dsurface_get_size_in_blocks(desc, size, &blocks); + + pitch = blocks.width * desc->pitch_bytes_per_block; + + return pitch; +} + +/* + *----------------------------------------------------------------------------- + * + * svga3dsurface_get_image_buffer_size -- + * + * Return the number of bytes of buffer space required to store + * one image of a surface, optionally using the specified pitch. + * + * If pitch is zero, it is assumed that rows are tightly packed. + * + * This function is overflow-safe. If the result would have + * overflowed, instead we return MAX_UINT32. + * + * Results: + * Byte count. + * + * Side effects: + * None. + * + *----------------------------------------------------------------------------- + */ + +static inline u32 +svga3dsurface_get_image_buffer_size(const struct svga3d_surface_desc *desc, + const surf_size_struct *size, + u32 pitch) +{ + surf_size_struct image_blocks; + u32 slice_size, total_size; + + svga3dsurface_get_size_in_blocks(desc, size, &image_blocks); + + if (svga3dsurface_is_planar_surface(desc)) { + total_size = clamped_umul32(image_blocks.width, + image_blocks.height); + total_size = clamped_umul32(total_size, image_blocks.depth); + total_size = clamped_umul32(total_size, desc->bytes_per_block); + return total_size; + } + + if (pitch == 0) + pitch = svga3dsurface_calculate_pitch(desc, size); + + slice_size = clamped_umul32(image_blocks.height, pitch); + total_size = clamped_umul32(slice_size, image_blocks.depth); + + return total_size; +} + +static inline u32 +svga3dsurface_get_serialized_size(SVGA3dSurfaceFormat format, + surf_size_struct base_level_size, + u32 num_mip_levels, + u32 num_layers) +{ + const struct svga3d_surface_desc *desc = svga3dsurface_get_desc(format); + u32 total_size = 0; + u32 mip; + + for (mip = 0; mip < num_mip_levels; mip++) { + surf_size_struct size = + svga3dsurface_get_mip_size(base_level_size, mip); + total_size += svga3dsurface_get_image_buffer_size(desc, + &size, 0); + } + + return total_size * num_layers; +} + + +/** + * svga3dsurface_get_pixel_offset - Compute the offset (in bytes) to a pixel + * in an image (or volume). + * + * @width: The image width in pixels. + * @height: The image height in pixels + */ +static inline u32 +svga3dsurface_get_pixel_offset(SVGA3dSurfaceFormat format, + u32 width, u32 height, + u32 x, u32 y, u32 z) +{ + const struct svga3d_surface_desc *desc = svga3dsurface_get_desc(format); + const u32 bw = desc->block_size.width, bh = desc->block_size.height; + const u32 bd = desc->block_size.depth; + const u32 rowstride = DIV_ROUND_UP(width, bw) * desc->bytes_per_block; + const u32 imgstride = DIV_ROUND_UP(height, bh) * rowstride; + const u32 offset = (z / bd * imgstride + + y / bh * rowstride + + x / bw * desc->bytes_per_block); + return offset; +} + + +static inline u32 +svga3dsurface_get_image_offset(SVGA3dSurfaceFormat format, + surf_size_struct baseLevelSize, + u32 numMipLevels, + u32 face, + u32 mip) + +{ + u32 offset; + u32 mipChainBytes; + u32 mipChainBytesToLevel; + u32 i; + const struct svga3d_surface_desc *desc; + surf_size_struct mipSize; + u32 bytes; + + desc = svga3dsurface_get_desc(format); + + mipChainBytes = 0; + mipChainBytesToLevel = 0; + for (i = 0; i < numMipLevels; i++) { + mipSize = svga3dsurface_get_mip_size(baseLevelSize, i); + bytes = svga3dsurface_get_image_buffer_size(desc, &mipSize, 0); + mipChainBytes += bytes; + if (i < mip) + mipChainBytesToLevel += bytes; + } + + offset = mipChainBytes * face + mipChainBytesToLevel; + + return offset; +} + + +/** + * svga3dsurface_is_gb_screen_target_format - Is the specified format usable as + * a ScreenTarget? + * (with just the GBObjects cap-bit + * set) + * @format: format to queried + * + * RETURNS: + * true if queried format is valid for screen targets + */ +static inline bool +svga3dsurface_is_gb_screen_target_format(SVGA3dSurfaceFormat format) +{ + return (format == SVGA3D_X8R8G8B8 || + format == SVGA3D_A8R8G8B8 || + format == SVGA3D_R5G6B5 || + format == SVGA3D_X1R5G5B5 || + format == SVGA3D_A1R5G5B5 || + format == SVGA3D_P8); +} + + +/** + * svga3dsurface_is_dx_screen_target_format - Is the specified format usable as + * a ScreenTarget? + * (with DX10 enabled) + * + * @format: format to queried + * + * Results: + * true if queried format is valid for screen targets + */ +static inline bool +svga3dsurface_is_dx_screen_target_format(SVGA3dSurfaceFormat format) +{ + return (format == SVGA3D_R8G8B8A8_UNORM || + format == SVGA3D_B8G8R8A8_UNORM || + format == SVGA3D_B8G8R8X8_UNORM); +} + + +/** + * svga3dsurface_is_screen_target_format - Is the specified format usable as a + * ScreenTarget? + * (for some combination of caps) + * + * @format: format to queried + * + * Results: + * true if queried format is valid for screen targets + */ +static inline bool +svga3dsurface_is_screen_target_format(SVGA3dSurfaceFormat format) +{ + if (svga3dsurface_is_gb_screen_target_format(format)) { + return true; + } + return svga3dsurface_is_dx_screen_target_format(format); +} |