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_math.h"
  27 #include "u_format.h"
  28 #include "u_format_rgtc.h"
  29 #include "u_format_latc.h"
  30 #include "util/rgtc.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(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 104 {
 105    fprintf(stderr,"%s\n", __func__);
 106 }
 107
 108 void
 109 util_format_latc1_snorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 110 {
 111    fprintf(stderr,"%s\n", __func__);
 112 }
 113
 114 void
 115 util_format_latc1_snorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 116 {
 117    fprintf(stderr,"%s\n", __func__);
 118 }
 119
 120 void
 121 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)
 122 {
 123    util_format_rgtc1_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height);
 124 }
 125
 126 void
 127 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)
 128 {
 129    unsigned x, y, i, j;
 130    int block_size = 8;
 131
 132    for(y = 0; y < height; y += 4) {
 133       const int8_t *src = (int8_t *)src_row;
 134       for(x = 0; x < width; x += 4) {
 135          for(j = 0; j < 4; ++j) {
 136             for(i = 0; i < 4; ++i) {
 137                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 138                int8_t tmp_r;
 139                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
 140                dst[0] =
 141                dst[1] =
 142                dst[2] = byte_to_float_tex(tmp_r);
 143                dst[3] = 1.0;
 144             }
 145          }
 146          src += block_size;
 147       }
 148       src_row += src_stride;
 149    }
 150 }
 151
 152 void
 153 util_format_latc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 154 {
 155    int8_t tmp_r;
 156
 157    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1);
 158    dst[0] =
 159    dst[1] =
 160    dst[2] = byte_to_float_tex(tmp_r);
 161    dst[3] = 1.0;
 162 }
 163
 164
 165 void
 166 util_format_latc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 167 {
 168    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
 169    dst[1] = dst[0];
 170    dst[2] = dst[0];
 171    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 3, 2);
 172 }
 173
 174 void
 175 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)
 176 {
 177    util_format_rgtc2_unorm_unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 178 }
 179
 180 void
 181 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)
 182 {
 183    util_format_rgtc2_unorm_pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 184 }
 185
 186 void
 187 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)
 188 {
 189    util_format_rxtc2_unorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 190 }
 191
 192 void
 193 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)
 194 {
 195    unsigned x, y, i, j;
 196    int block_size = 16;
 197
 198    for(y = 0; y < height; y += 4) {
 199       const uint8_t *src = src_row;
 200       for(x = 0; x < width; x += 4) {
 201          for(j = 0; j < 4; ++j) {
 202             for(i = 0; i < 4; ++i) {
 203                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 204                uint8_t tmp_r, tmp_g;
 205                util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 206                util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 207                dst[0] =
 208                dst[1] =
 209                dst[2] = ubyte_to_float(tmp_r);
 210                dst[3] = ubyte_to_float(tmp_g);
 211             }
 212          }
 213          src += block_size;
 214       }
 215       src_row += src_stride;
 216    }
 217 }
 218
 219 void
 220 util_format_latc2_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 221 {
 222    uint8_t tmp_r, tmp_g;
 223
 224    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 225    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 226    dst[0] =
 227    dst[1] =
 228    dst[2] = ubyte_to_float(tmp_r);
 229    dst[3] = ubyte_to_float(tmp_g);
 230 }
 231
 232
 233 void
 234 util_format_latc2_snorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 235 {
 236    fprintf(stderr,"%s\n", __func__);
 237 }
 238
 239 void
 240 util_format_latc2_snorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 241 {
 242    fprintf(stderr,"%s\n", __func__);
 243 }
 244
 245 void
 246 util_format_latc2_snorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 247 {
 248    fprintf(stderr,"%s\n", __func__);
 249 }
 250
 251 void
 252 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)
 253 {
 254    unsigned x, y, i, j;
 255    int block_size = 16;
 256
 257    for(y = 0; y < height; y += 4) {
 258       const int8_t *src = (int8_t *)src_row;
 259       for(x = 0; x < width; x += 4) {
 260          for(j = 0; j < 4; ++j) {
 261             for(i = 0; i < 4; ++i) {
 262                float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
 263                int8_t tmp_r, tmp_g;
 264                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 265                util_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 266                dst[0] =
 267                dst[1] =
 268                dst[2] = byte_to_float_tex(tmp_r);
 269                dst[3] = byte_to_float_tex(tmp_g);
 270             }
 271          }
 272          src += block_size;
 273       }
 274       src_row += src_stride;
 275    }
 276 }
 277
 278 void
 279 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)
 280 {
 281    util_format_rxtc2_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 282 }
 283
 284 void
 285 util_format_latc2_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
 286 {
 287    int8_t tmp_r, tmp_g;
 288
 289    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2);
 290    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2);
 291    dst[0] =
 292    dst[1] =
 293    dst[2] = byte_to_float_tex(tmp_r);
 294    dst[3] = byte_to_float_tex(tmp_g);
 295 }
 296