src/util/format/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 "util/format/u_format.h"
  27 #include "util/format/u_format_rgtc.h"
  28 #include "util/format/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(void *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 = (float *)((uint8_t *)dst_row + (y + j)*dst_stride + (x + i)*16);
  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(void *in_dst, const uint8_t *src, unsigned i, unsigned j)
  92 {
  93    float *dst = in_dst;
  94    uint8_t tmp_r;
  95
  96    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
  97    dst[0] =
  98    dst[1] =
  99    dst[2] = ubyte_to_float(tmp_r);
 100    dst[3] = 1.0;
 101 }
 102
 103 void
 104 util_format_latc1_snorm_fetch_rgba_8unorm(UNUSED uint8_t *dst, UNUSED const uint8_t *src,
 105                                           UNUSED unsigned i, UNUSED unsigned j)
 106 {
 107    fprintf(stderr,"%s\n", __func__);
 108 }
 109
 110 void
 111 util_format_latc1_snorm_unpack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 112                                            UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 113                                            UNUSED unsigned width, UNUSED unsigned height)
 114 {
 115    fprintf(stderr,"%s\n", __func__);
 116 }
 117
 118 void
 119 util_format_latc1_snorm_pack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 120                                          UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 121                                          UNUSED unsigned width, UNUSED unsigned height)
 122 {
 123    fprintf(stderr,"%s\n", __func__);
 124 }
 125
 126 void
 127 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)
 128 {
 129    util_format_rgtc1_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height);
 130 }
 131
 132 void
 133 util_format_latc1_snorm_unpack_rgba_float(void *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 134 {
 135    unsigned x, y, i, j;
 136    int block_size = 8;
 137
 138    for(y = 0; y < height; y += 4) {
 139       const int8_t *src = (int8_t *)src_row;
 140       for(x = 0; x < width; x += 4) {
 141          for(j = 0; j < 4; ++j) {
 142             for(i = 0; i < 4; ++i) {
 143                float *dst = (float *)((uint8_t *)dst_row + (y + j)*dst_stride + (x + i)*16);
 144                int8_t tmp_r;
 145                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
 146                dst[0] =
 147                dst[1] =
 148                dst[2] = byte_to_float_tex(tmp_r);
 149                dst[3] = 1.0;
 150             }
 151          }
 152          src += block_size;
 153       }
 154       src_row += src_stride;
 155    }
 156 }
 157
 158 void
 159 util_format_latc1_snorm_fetch_rgba(void *in_dst, const uint8_t *src, unsigned i, unsigned j)
 160 {
 161    float *dst = in_dst;
 162    int8_t tmp_r;
 163
 164    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1);
 165    dst[0] =
 166    dst[1] =
 167    dst[2] = byte_to_float_tex(tmp_r);
 168    dst[3] = 1.0;
 169 }
 170
 171
 172 void
 173 util_format_latc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
 174 {
 175    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
 176    dst[1] = dst[0];
 177    dst[2] = dst[0];
 178    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 3, 2);
 179 }
 180
 181 void
 182 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)
 183 {
 184    util_format_rgtc2_unorm_unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 185 }
 186
 187 void
 188 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)
 189 {
 190    util_format_rgtc2_unorm_pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, width, height);
 191 }
 192
 193 void
 194 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)
 195 {
 196    util_format_rxtc2_unorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 197 }
 198
 199 void
 200 util_format_latc2_unorm_unpack_rgba_float(void *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 201 {
 202    unsigned x, y, i, j;
 203    int block_size = 16;
 204
 205    for(y = 0; y < height; y += 4) {
 206       const uint8_t *src = src_row;
 207       for(x = 0; x < width; x += 4) {
 208          for(j = 0; j < 4; ++j) {
 209             for(i = 0; i < 4; ++i) {
 210                float *dst = (float *)((uint8_t *)dst_row + (y + j)*dst_stride + (x + i)*16);
 211                uint8_t tmp_r, tmp_g;
 212                util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 213                util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 214                dst[0] =
 215                dst[1] =
 216                dst[2] = ubyte_to_float(tmp_r);
 217                dst[3] = ubyte_to_float(tmp_g);
 218             }
 219          }
 220          src += block_size;
 221       }
 222       src_row += src_stride;
 223    }
 224 }
 225
 226 void
 227 util_format_latc2_unorm_fetch_rgba(void *in_dst, const uint8_t *src, unsigned i, unsigned j)
 228 {
 229    float *dst = in_dst;
 230    uint8_t tmp_r, tmp_g;
 231
 232    util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 233    util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 234    dst[0] =
 235    dst[1] =
 236    dst[2] = ubyte_to_float(tmp_r);
 237    dst[3] = ubyte_to_float(tmp_g);
 238 }
 239
 240
 241 void
 242 util_format_latc2_snorm_fetch_rgba_8unorm(UNUSED uint8_t *dst, UNUSED const uint8_t *src,
 243                                           UNUSED unsigned i, UNUSED unsigned j)
 244 {
 245    fprintf(stderr,"%s\n", __func__);
 246 }
 247
 248 void
 249 util_format_latc2_snorm_unpack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 250                                            UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 251                                            UNUSED unsigned width, UNUSED unsigned height)
 252 {
 253    fprintf(stderr,"%s\n", __func__);
 254 }
 255
 256 void
 257 util_format_latc2_snorm_pack_rgba_8unorm(UNUSED uint8_t *dst_row, UNUSED unsigned dst_stride,
 258                                          UNUSED const uint8_t *src_row, UNUSED unsigned src_stride,
 259                                          UNUSED unsigned width, UNUSED unsigned height)
 260 {
 261    fprintf(stderr,"%s\n", __func__);
 262 }
 263
 264 void
 265 util_format_latc2_snorm_unpack_rgba_float(void *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
 266 {
 267    unsigned x, y, i, j;
 268    int block_size = 16;
 269
 270    for(y = 0; y < height; y += 4) {
 271       const int8_t *src = (int8_t *)src_row;
 272       for(x = 0; x < width; x += 4) {
 273          for(j = 0; j < 4; ++j) {
 274             for(i = 0; i < 4; ++i) {
 275                float *dst = (float *)(uint8_t *)dst_row + (y + j)*dst_stride + (x + i)*16;
 276                int8_t tmp_r, tmp_g;
 277                util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
 278                util_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
 279                dst[0] =
 280                dst[1] =
 281                dst[2] = byte_to_float_tex(tmp_r);
 282                dst[3] = byte_to_float_tex(tmp_g);
 283             }
 284          }
 285          src += block_size;
 286       }
 287       src_row += src_stride;
 288    }
 289 }
 290
 291 void
 292 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)
 293 {
 294    util_format_rxtc2_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 3);
 295 }
 296
 297 void
 298 util_format_latc2_snorm_fetch_rgba(void *in_dst, const uint8_t *src, unsigned i, unsigned j)
 299 {
 300    float *dst = in_dst;
 301    int8_t tmp_r, tmp_g;
 302
 303    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2);
 304    util_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2);
 305    dst[0] =
 306    dst[1] =
 307    dst[2] = byte_to_float_tex(tmp_r);
 308    dst[3] = byte_to_float_tex(tmp_g);
 309 }
 310