src/gallium/auxiliary/util/u_format_latc.c

   1 /**************************************************************************
   2  *
   3  * Copyright (C) 2011 Red Hat Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included
  13  * in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  **************************************************************************/
  24
  25 #include <stdio.h>
  26 #include "u_format.h"
  27 #include "u_format_rgtc.h"
  28 #include "u_format_latc.h"
  29 #include "util/rgtc.h"
  30 #include "util/u_math.h"
  31
  32 void
  33 util_format_latc1_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
  34 {
  35    /* Fix warnings here: */
  36    (void) util_format_unsigned_encode_rgtc_ubyte;
  37    (void) util_format_signed_encode_rgtc_ubyte;
  38
  39    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1);
  40    dst[1] = dst[0];
  41    dst[2] = dst[0];
  42    dst[3] = 255;
  43 }
  44
  45 void
  46 util_format_latc1_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
  47 {
  48    util_format_rgtc1_unorm_unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
  49 }
  50
  51 void
  52 util_format_latc1_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row,
  53                                          unsigned src_stride, unsigned width, unsigned height)
  54 {
  55    util_format_rgtc1_unorm_pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
  56 }
  57
  58 void
  59 util_format_latc1_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
  60 {
  61    unsigned x, y, i, j;
  62    int block_size = 8;
  63
  64    for(y = 0; y < height; y += 4) {
  65       const uint8_t *src = src_row;
  66       for(x = 0; x < width; x += 4) {
  67          for(j = 0; j < 4; ++j) {
  68             for(i = 0; i < 4; ++i) {
  69                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
  70                uint8_t tmp_r;
  71                util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
  72                dst[0] =
  73                dst[1] =
  74                dst[2] = ubyte_to_float(tmp_r);
  75                dst[3] = 1.0;
  76             }
  77          }
  78          src += block_size;
  79       }
  80       src_row += src_stride;
  81    }
  82 }
  83
  84 void
  85 util_format_latc1_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
  86 {
  87    util_format_rgtc1_unorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height);
  88 }
  89
  90 void
  91 util_format_latc1_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
  92 {
  93    uint8_t tmp_r;
  94
  95    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
  96    dst[0] =
  97    dst[1] =
  98    dst[2] = ubyte_to_float(tmp_r);
  99    dst[3] = 1.0;
 100 }
 101
 102 void
 103 util_format_latc1_snorm_fetch_rgba_8unorm(UNUSED uint8_t *dst, UNUSED const uint8_t *src,
 104                                           UNUSED unsigned i, UNUSED unsigned j)
 105 {
 106    fprintf(stderr,"%s\n", __func__);
 107 }
 108
 109 void
 110 util_format_latc1_snorm_unpack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 111                                            UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 112                                            UNUSED unsigned width, UNUSED unsigned height)
 113 {
 114    fprintf(stderr,"%s\n", __func__);
 115 }
 116
 117 void
 118 util_format_latc1_snorm_pack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 119                                          UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 120                                          UNUSED unsigned width, UNUSED unsigned height)
 121 {
 122    fprintf(stderr,"%s\n", __func__);
 123 }
 124
 125 void
 126 util_format_latc1_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 127 {
 128    util_format_rgtc1_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height);
 129 }
 130
 131 void
 132 util_format_latc1_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 133 {
 134    unsigned x, y, i, j;
 135    int block_size = 8;
 136
 137    for(y = 0; y < height; y += 4) {
 138       const int8_t *src = (int8_t *)src_row;
 139       for(x = 0; x < width; x += 4) {
 140          for(j = 0; j < 4; ++j) {
 141             for(i = 0; i < 4; ++i) {
 142                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 143                int8_t tmp_r;
 144                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
 145                dst[0] =
 146                dst[1] =
 147                dst[2] = byte_to_float_tex(tmp_r);
 148                dst[3] = 1.0;
 149             }
 150          }
 151          src += block_size;
 152       }
 153       src_row += src_stride;
 154    }
 155 }
 156
 157 void
 158 util_format_latc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 159 {
 160    int8_t tmp_r;
 161
 162    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1);
 163    dst[0] =
 164    dst[1] =
 165    dst[2] = byte_to_float_tex(tmp_r);
 166    dst[3] = 1.0;
 167 }
 168
 169
 170 void
 171 util_format_latc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 172 {
 173    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
 174    dst[1] = dst[0];
 175    dst[2] = dst[0];
 176    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 3, 2);
 177 }
 178
 179 void
 180 util_format_latc2_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 181 {
 182    util_format_rgtc2_unorm_unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 183 }
 184
 185 void
 186 util_format_latc2_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 187 {
 188    util_format_rgtc2_unorm_pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 189 }
 190
 191 void
 192 util_format_latc2_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 193 {
 194    util_format_rxtc2_unorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 195 }
 196
 197 void
 198 util_format_latc2_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 199 {
 200    unsigned x, y, i, j;
 201    int block_size = 16;
 202
 203    for(y = 0; y < height; y += 4) {
 204       const uint8_t *src = src_row;
 205       for(x = 0; x < width; x += 4) {
 206          for(j = 0; j < 4; ++j) {
 207             for(i = 0; i < 4; ++i) {
 208                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 209                uint8_t tmp_r, tmp_g;
 210                util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 211                util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 212                dst[0] =
 213                dst[1] =
 214                dst[2] = ubyte_to_float(tmp_r);
 215                dst[3] = ubyte_to_float(tmp_g);
 216             }
 217          }
 218          src += block_size;
 219       }
 220       src_row += src_stride;
 221    }
 222 }
 223
 224 void
 225 util_format_latc2_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 226 {
 227    uint8_t tmp_r, tmp_g;
 228
 229    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 230    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 231    dst[0] =
 232    dst[1] =
 233    dst[2] = ubyte_to_float(tmp_r);
 234    dst[3] = ubyte_to_float(tmp_g);
 235 }
 236
 237
 238 void
 239 util_format_latc2_snorm_fetch_rgba_8unorm(UNUSED uint8_t *dst, UNUSED const uint8_t *src,
 240                                           UNUSED unsigned i, UNUSED unsigned j)
 241 {
 242    fprintf(stderr,"%s\n", __func__);
 243 }
 244
 245 void
 246 util_format_latc2_snorm_unpack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 247                                            UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 248                                            UNUSED unsigned width, UNUSED unsigned height)
 249 {
 250    fprintf(stderr,"%s\n", __func__);
 251 }
 252
 253 void
 254 util_format_latc2_snorm_pack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 255                                          UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 256                                          UNUSED unsigned width, UNUSED unsigned height)
 257 {
 258    fprintf(stderr,"%s\n", __func__);
 259 }
 260
 261 void
 262 util_format_latc2_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 263 {
 264    unsigned x, y, i, j;
 265    int block_size = 16;
 266
 267    for(y = 0; y < height; y += 4) {
 268       const int8_t *src = (int8_t *)src_row;
 269       for(x = 0; x < width; x += 4) {
 270          for(j = 0; j < 4; ++j) {
 271             for(i = 0; i < 4; ++i) {
 272                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 273                int8_t tmp_r, tmp_g;
 274                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 275                util_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 276                dst[0] =
 277                dst[1] =
 278                dst[2] = byte_to_float_tex(tmp_r);
 279                dst[3] = byte_to_float_tex(tmp_g);
 280             }
 281          }
 282          src += block_size;
 283       }
 284       src_row += src_stride;
 285    }
 286 }
 287
 288 void
 289 util_format_latc2_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
 290 {
 291    util_format_rxtc2_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 292 }
 293
 294 void
 295 util_format_latc2_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 296 {
 297    int8_t tmp_r, tmp_g;
 298
 299    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2);
 300    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2);
 301    dst[0] =
 302    dst[1] =
 303    dst[2] = byte_to_float_tex(tmp_r);
 304    dst[3] = byte_to_float_tex(tmp_g);
 305 }
 306