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      1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
      2 
      3 /*
      4  * Copyright (C) 2012 Rob Clark <robclark (at) freedesktop.org>
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the next
     14  * paragraph) shall be included in all copies or substantial portions of the
     15  * Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     23  * SOFTWARE.
     24  *
     25  * Authors:
     26  *    Rob Clark <robclark (at) freedesktop.org>
     27  */
     28 
     29 #include "pipe/p_defines.h"
     30 #include "util/u_format.h"
     31 
     32 #include "fd2_util.h"
     33 
     34 enum a2xx_sq_surfaceformat
     35 fd2_pipe2surface(enum pipe_format format)
     36 {
     37 	switch (format) {
     38 	/* 8-bit buffers. */
     39 	case PIPE_FORMAT_A8_UNORM:
     40 	case PIPE_FORMAT_A8_SNORM:
     41 	case PIPE_FORMAT_A8_UINT:
     42 	case PIPE_FORMAT_A8_SINT:
     43 	case PIPE_FORMAT_I8_UNORM:
     44 	case PIPE_FORMAT_I8_SNORM:
     45 	case PIPE_FORMAT_I8_UINT:
     46 	case PIPE_FORMAT_I8_SINT:
     47 	case PIPE_FORMAT_L8_UNORM:
     48 	case PIPE_FORMAT_L8_SNORM:
     49 	case PIPE_FORMAT_L8_UINT:
     50 	case PIPE_FORMAT_L8_SINT:
     51 	case PIPE_FORMAT_L8_SRGB:
     52 	case PIPE_FORMAT_R8_UNORM:
     53 	case PIPE_FORMAT_R8_SNORM:
     54 	case PIPE_FORMAT_R8_UINT:
     55 	case PIPE_FORMAT_R8_SINT:
     56 		return FMT_8;
     57 
     58 	/* 16-bit buffers. */
     59 	case PIPE_FORMAT_B5G6R5_UNORM:
     60 		return FMT_5_6_5;
     61 	case PIPE_FORMAT_B5G5R5A1_UNORM:
     62 	case PIPE_FORMAT_B5G5R5X1_UNORM:
     63 		return FMT_1_5_5_5;
     64 	case PIPE_FORMAT_B4G4R4A4_UNORM:
     65 	case PIPE_FORMAT_B4G4R4X4_UNORM:
     66 		return FMT_4_4_4_4;
     67 	case PIPE_FORMAT_Z16_UNORM:
     68 		return FMT_16;
     69 	case PIPE_FORMAT_L8A8_UNORM:
     70 	case PIPE_FORMAT_L8A8_SNORM:
     71 	case PIPE_FORMAT_L8A8_UINT:
     72 	case PIPE_FORMAT_L8A8_SINT:
     73 	case PIPE_FORMAT_L8A8_SRGB:
     74 	case PIPE_FORMAT_R8G8_UNORM:
     75 	case PIPE_FORMAT_R8G8_SNORM:
     76 	case PIPE_FORMAT_R8G8_UINT:
     77 	case PIPE_FORMAT_R8G8_SINT:
     78 		return FMT_8_8;
     79 	case PIPE_FORMAT_R16_UNORM:
     80 	case PIPE_FORMAT_R16_SNORM:
     81 	case PIPE_FORMAT_R16_UINT:
     82 	case PIPE_FORMAT_R16_SINT:
     83 	case PIPE_FORMAT_A16_UNORM:
     84 	case PIPE_FORMAT_A16_SNORM:
     85 	case PIPE_FORMAT_A16_UINT:
     86 	case PIPE_FORMAT_A16_SINT:
     87 	case PIPE_FORMAT_L16_UNORM:
     88 	case PIPE_FORMAT_L16_SNORM:
     89 	case PIPE_FORMAT_L16_UINT:
     90 	case PIPE_FORMAT_L16_SINT:
     91 	case PIPE_FORMAT_I16_UNORM:
     92 	case PIPE_FORMAT_I16_SNORM:
     93 	case PIPE_FORMAT_I16_UINT:
     94 	case PIPE_FORMAT_I16_SINT:
     95 		return FMT_16;
     96 	case PIPE_FORMAT_R16_FLOAT:
     97 	case PIPE_FORMAT_A16_FLOAT:
     98 	case PIPE_FORMAT_L16_FLOAT:
     99 	case PIPE_FORMAT_I16_FLOAT:
    100 		return FMT_16_FLOAT;
    101 
    102 	/* 32-bit buffers. */
    103 	case PIPE_FORMAT_A8B8G8R8_SRGB:
    104 	case PIPE_FORMAT_A8B8G8R8_UNORM:
    105 	case PIPE_FORMAT_A8R8G8B8_UNORM:
    106 	case PIPE_FORMAT_B8G8R8A8_SRGB:
    107 	case PIPE_FORMAT_B8G8R8A8_UNORM:
    108 	case PIPE_FORMAT_B8G8R8X8_UNORM:
    109 	case PIPE_FORMAT_R8G8B8A8_SNORM:
    110 	case PIPE_FORMAT_R8G8B8A8_UNORM:
    111 	case PIPE_FORMAT_R8G8B8X8_UNORM:
    112 	case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
    113 	case PIPE_FORMAT_X8B8G8R8_UNORM:
    114 	case PIPE_FORMAT_X8R8G8B8_UNORM:
    115 	case PIPE_FORMAT_R8G8B8_UNORM:
    116 	case PIPE_FORMAT_R8G8B8A8_SINT:
    117 	case PIPE_FORMAT_R8G8B8A8_UINT:
    118 		return FMT_8_8_8_8;
    119 	case PIPE_FORMAT_R10G10B10A2_UNORM:
    120 	case PIPE_FORMAT_R10G10B10X2_SNORM:
    121 	case PIPE_FORMAT_B10G10R10A2_UNORM:
    122 	case PIPE_FORMAT_B10G10R10A2_UINT:
    123 	case PIPE_FORMAT_R10SG10SB10SA2U_NORM:
    124 		return FMT_2_10_10_10;
    125 	case PIPE_FORMAT_Z24X8_UNORM:
    126 	case PIPE_FORMAT_Z24_UNORM_S8_UINT:
    127 		return FMT_24_8;
    128 	case PIPE_FORMAT_R32_UINT:
    129 	case PIPE_FORMAT_R32_SINT:
    130 	case PIPE_FORMAT_A32_UINT:
    131 	case PIPE_FORMAT_A32_SINT:
    132 	case PIPE_FORMAT_L32_UINT:
    133 	case PIPE_FORMAT_L32_SINT:
    134 	case PIPE_FORMAT_I32_UINT:
    135 	case PIPE_FORMAT_I32_SINT:
    136 		return FMT_32;
    137 	case PIPE_FORMAT_R32_FLOAT:
    138 	case PIPE_FORMAT_A32_FLOAT:
    139 	case PIPE_FORMAT_L32_FLOAT:
    140 	case PIPE_FORMAT_I32_FLOAT:
    141 	case PIPE_FORMAT_Z32_FLOAT:
    142 		return FMT_32_FLOAT;
    143 	case PIPE_FORMAT_R16G16_FLOAT:
    144 	case PIPE_FORMAT_L16A16_FLOAT:
    145 		return FMT_16_16_FLOAT;
    146 	case PIPE_FORMAT_R16G16_UNORM:
    147 	case PIPE_FORMAT_R16G16_SNORM:
    148 	case PIPE_FORMAT_R16G16_UINT:
    149 	case PIPE_FORMAT_R16G16_SINT:
    150 	case PIPE_FORMAT_L16A16_UNORM:
    151 	case PIPE_FORMAT_L16A16_SNORM:
    152 	case PIPE_FORMAT_L16A16_UINT:
    153 	case PIPE_FORMAT_L16A16_SINT:
    154 		return FMT_16_16;
    155 
    156 	/* 64-bit buffers. */
    157 	case PIPE_FORMAT_R16G16B16A16_UINT:
    158 	case PIPE_FORMAT_R16G16B16A16_SINT:
    159 	case PIPE_FORMAT_R16G16B16A16_UNORM:
    160 	case PIPE_FORMAT_R16G16B16A16_SNORM:
    161 		return FMT_16_16_16_16;
    162 	case PIPE_FORMAT_R16G16B16A16_FLOAT:
    163 		return FMT_16_16_16_16_FLOAT;
    164 	case PIPE_FORMAT_R32G32_FLOAT:
    165 	case PIPE_FORMAT_L32A32_FLOAT:
    166 		return FMT_32_32_FLOAT;
    167 	case PIPE_FORMAT_R32G32_SINT:
    168 	case PIPE_FORMAT_R32G32_UINT:
    169 	case PIPE_FORMAT_L32A32_UINT:
    170 	case PIPE_FORMAT_L32A32_SINT:
    171 		return FMT_32_32;
    172 
    173 	/* 96-bit buffers. */
    174 	case PIPE_FORMAT_R32G32B32_FLOAT:
    175 		return FMT_32_32_32_FLOAT;
    176 
    177 	/* 128-bit buffers. */
    178 	case PIPE_FORMAT_R32G32B32A32_SNORM:
    179 	case PIPE_FORMAT_R32G32B32A32_UNORM:
    180 	case PIPE_FORMAT_R32G32B32A32_SINT:
    181 	case PIPE_FORMAT_R32G32B32A32_UINT:
    182 		return FMT_32_32_32_32;
    183 	case PIPE_FORMAT_R32G32B32A32_FLOAT:
    184 		return FMT_32_32_32_32_FLOAT;
    185 
    186 	/* YUV buffers. */
    187 	case PIPE_FORMAT_UYVY:
    188 		return FMT_Cr_Y1_Cb_Y0;
    189 	case PIPE_FORMAT_YUYV:
    190 		return FMT_Y1_Cr_Y0_Cb;
    191 
    192 	default:
    193 		return ~0;
    194 	}
    195 }
    196 
    197 enum a2xx_colorformatx
    198 fd2_pipe2color(enum pipe_format format)
    199 {
    200 	switch (format) {
    201 	/* 8-bit buffers. */
    202 	case PIPE_FORMAT_A8_UNORM:
    203 	case PIPE_FORMAT_A8_SNORM:
    204 	case PIPE_FORMAT_A8_UINT:
    205 	case PIPE_FORMAT_A8_SINT:
    206 	case PIPE_FORMAT_I8_UNORM:
    207 	case PIPE_FORMAT_I8_SNORM:
    208 	case PIPE_FORMAT_I8_UINT:
    209 	case PIPE_FORMAT_I8_SINT:
    210 	case PIPE_FORMAT_L8_UNORM:
    211 	case PIPE_FORMAT_L8_SNORM:
    212 	case PIPE_FORMAT_L8_UINT:
    213 	case PIPE_FORMAT_L8_SINT:
    214 	case PIPE_FORMAT_L8_SRGB:
    215 	case PIPE_FORMAT_R8_UNORM:
    216 	case PIPE_FORMAT_R8_SNORM:
    217 	case PIPE_FORMAT_R8_UINT:
    218 	case PIPE_FORMAT_R8_SINT:
    219 		return COLORX_8;
    220 
    221 	/* 16-bit buffers. */
    222 	case PIPE_FORMAT_B5G6R5_UNORM:
    223 		return COLORX_5_6_5;
    224 	case PIPE_FORMAT_B5G5R5A1_UNORM:
    225 	case PIPE_FORMAT_B5G5R5X1_UNORM:
    226 		return COLORX_1_5_5_5;
    227 	case PIPE_FORMAT_B4G4R4A4_UNORM:
    228 	case PIPE_FORMAT_B4G4R4X4_UNORM:
    229 		return COLORX_4_4_4_4;
    230 	case PIPE_FORMAT_L8A8_UNORM:
    231 	case PIPE_FORMAT_L8A8_SNORM:
    232 	case PIPE_FORMAT_L8A8_UINT:
    233 	case PIPE_FORMAT_L8A8_SINT:
    234 	case PIPE_FORMAT_L8A8_SRGB:
    235 	case PIPE_FORMAT_R8G8_UNORM:
    236 	case PIPE_FORMAT_R8G8_SNORM:
    237 	case PIPE_FORMAT_R8G8_UINT:
    238 	case PIPE_FORMAT_R8G8_SINT:
    239 	case PIPE_FORMAT_Z16_UNORM:
    240 		return COLORX_8_8;
    241 	case PIPE_FORMAT_R16_FLOAT:
    242 	case PIPE_FORMAT_A16_FLOAT:
    243 	case PIPE_FORMAT_L16_FLOAT:
    244 	case PIPE_FORMAT_I16_FLOAT:
    245 		return COLORX_16_FLOAT;
    246 
    247 	/* 32-bit buffers. */
    248 	case PIPE_FORMAT_A8B8G8R8_SRGB:
    249 	case PIPE_FORMAT_A8B8G8R8_UNORM:
    250 	case PIPE_FORMAT_A8R8G8B8_UNORM:
    251 	case PIPE_FORMAT_B8G8R8A8_SRGB:
    252 	case PIPE_FORMAT_B8G8R8A8_UNORM:
    253 	case PIPE_FORMAT_B8G8R8X8_UNORM:
    254 	case PIPE_FORMAT_R8G8B8A8_SNORM:
    255 	case PIPE_FORMAT_R8G8B8A8_UNORM:
    256 	case PIPE_FORMAT_R8G8B8X8_UNORM:
    257 	case PIPE_FORMAT_R8SG8SB8UX8U_NORM:
    258 	case PIPE_FORMAT_X8B8G8R8_UNORM:
    259 	case PIPE_FORMAT_X8R8G8B8_UNORM:
    260 	case PIPE_FORMAT_R8G8B8_UNORM:
    261 	case PIPE_FORMAT_R8G8B8A8_SINT:
    262 	case PIPE_FORMAT_R8G8B8A8_UINT:
    263 	case PIPE_FORMAT_Z24_UNORM_S8_UINT:
    264 	case PIPE_FORMAT_Z24X8_UNORM:
    265 		return COLORX_8_8_8_8;
    266 	case PIPE_FORMAT_R32_FLOAT:
    267 	case PIPE_FORMAT_A32_FLOAT:
    268 	case PIPE_FORMAT_L32_FLOAT:
    269 	case PIPE_FORMAT_I32_FLOAT:
    270 	case PIPE_FORMAT_Z32_FLOAT:
    271 		return COLORX_32_FLOAT;
    272 	case PIPE_FORMAT_R16G16_FLOAT:
    273 	case PIPE_FORMAT_L16A16_FLOAT:
    274 		return COLORX_16_16_FLOAT;
    275 
    276 	/* 64-bit buffers. */
    277 	case PIPE_FORMAT_R16G16B16A16_FLOAT:
    278 		return COLORX_16_16_16_16_FLOAT;
    279 	case PIPE_FORMAT_R32G32_FLOAT:
    280 	case PIPE_FORMAT_L32A32_FLOAT:
    281 		return COLORX_32_32_FLOAT;
    282 
    283 	/* 128-bit buffers. */
    284 	case PIPE_FORMAT_R32G32B32A32_FLOAT:
    285 		return COLORX_32_32_32_32_FLOAT;
    286 
    287 	default:
    288 		return ~0;
    289 	}
    290 }
    291 
    292 static inline enum sq_tex_swiz
    293 tex_swiz(unsigned swiz)
    294 {
    295 	switch (swiz) {
    296 	default:
    297 	case PIPE_SWIZZLE_X: return SQ_TEX_X;
    298 	case PIPE_SWIZZLE_Y: return SQ_TEX_Y;
    299 	case PIPE_SWIZZLE_Z: return SQ_TEX_Z;
    300 	case PIPE_SWIZZLE_W: return SQ_TEX_W;
    301 	case PIPE_SWIZZLE_0: return SQ_TEX_ZERO;
    302 	case PIPE_SWIZZLE_1: return SQ_TEX_ONE;
    303 	}
    304 }
    305 
    306 uint32_t
    307 fd2_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
    308 		unsigned swizzle_b, unsigned swizzle_a)
    309 {
    310 	const struct util_format_description *desc =
    311 			util_format_description(format);
    312 	uint8_t swiz[] = {
    313 			swizzle_r, swizzle_g, swizzle_b, swizzle_a,
    314 			PIPE_SWIZZLE_0, PIPE_SWIZZLE_1,
    315 			PIPE_SWIZZLE_1, PIPE_SWIZZLE_1,
    316 	};
    317 
    318 	return A2XX_SQ_TEX_3_SWIZ_X(tex_swiz(swiz[desc->swizzle[0]])) |
    319 			A2XX_SQ_TEX_3_SWIZ_Y(tex_swiz(swiz[desc->swizzle[1]])) |
    320 			A2XX_SQ_TEX_3_SWIZ_Z(tex_swiz(swiz[desc->swizzle[2]])) |
    321 			A2XX_SQ_TEX_3_SWIZ_W(tex_swiz(swiz[desc->swizzle[3]]));
    322 }
    323