475 lines
16 KiB
C
475 lines
16 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2011 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include <stdio.h>
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#include "u_math.h"
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#include "u_format.h"
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#include "u_format_rgtc.h"
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static void u_format_unsigned_encode_rgtc_ubyte(uint8_t *blkaddr, uint8_t srccolors[4][4],
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int numxpixels, int numypixels);
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static void u_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride, const uint8_t *pixdata,
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unsigned i, unsigned j, uint8_t *value, unsigned comps);
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static void u_format_signed_encode_rgtc_ubyte(int8_t *blkaddr, int8_t srccolors[4][4],
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int numxpixels, int numypixels);
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static void u_format_signed_fetch_texel_rgtc(unsigned srcRowStride, const int8_t *pixdata,
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unsigned i, unsigned j, int8_t *value, unsigned comps);
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void
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util_format_rgtc1_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1);
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dst[1] = 0;
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dst[2] = 0;
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dst[3] = 255;
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}
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void
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util_format_rgtc1_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, comps = 4;
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unsigned x, y, i, j;
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unsigned block_size = 8;
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for(y = 0; y < height; y += bh) {
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const uint8_t *src = src_row;
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for(x = 0; x < width; x += bw) {
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1);
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dst[1] = 0;
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dst[2] = 0;
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dst[3] = 255;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rgtc1_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row,
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unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 8;
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unsigned x, y, i, j;
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for(y = 0; y < height; y += bh) {
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uint8_t *dst = dst_row;
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for(x = 0; x < width; x += bw) {
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uint8_t tmp[4][4]; /* [bh][bw][comps] */
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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tmp[j][i] = src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4];
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}
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}
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u_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4);
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dst += bytes_per_block;
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}
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dst_row += dst_stride / sizeof(*dst_row);
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}
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}
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void
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util_format_rgtc1_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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unsigned x, y, i, j;
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int block_size = 8;
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for(y = 0; y < height; y += 4) {
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const uint8_t *src = src_row;
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for(x = 0; x < width; x += 4) {
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for(j = 0; j < 4; ++j) {
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for(i = 0; i < 4; ++i) {
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float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
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uint8_t tmp_r;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
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dst[0] = ubyte_to_float(tmp_r);
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dst[1] = 0.0;
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rgtc1_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 8;
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unsigned x, y, i, j;
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for(y = 0; y < height; y += bh) {
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uint8_t *dst = dst_row;
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for(x = 0; x < width; x += bw) {
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uint8_t tmp[4][4]; /* [bh][bw][comps] */
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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tmp[j][i] = float_to_ubyte(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]);
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}
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}
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u_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4);
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dst += bytes_per_block;
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}
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dst_row += dst_stride / sizeof(*dst_row);
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}
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}
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void
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util_format_rgtc1_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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uint8_t tmp_r;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
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dst[0] = ubyte_to_float(tmp_r);
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dst[1] = 0.0;
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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void
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util_format_rgtc1_snorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc1_snorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc1_snorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc1_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 8;
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unsigned x, y, i, j;
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for(y = 0; y < height; y += bh) {
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int8_t *dst = (int8_t *)dst_row;
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for(x = 0; x < width; x += bw) {
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int8_t tmp[4][4]; /* [bh][bw][comps] */
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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tmp[j][i] = float_to_byte_tex(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]);
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}
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}
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u_format_signed_encode_rgtc_ubyte(dst, tmp, 4, 4);
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dst += bytes_per_block;
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}
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dst_row += dst_stride / sizeof(*dst_row);
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}
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}
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void
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util_format_rgtc1_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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unsigned x, y, i, j;
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int block_size = 8;
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for(y = 0; y < height; y += 4) {
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const int8_t *src = (int8_t *)src_row;
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for(x = 0; x < width; x += 4) {
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for(j = 0; j < 4; ++j) {
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for(i = 0; i < 4; ++i) {
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float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
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int8_t tmp_r;
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u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1);
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dst[0] = byte_to_float_tex(tmp_r);
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dst[1] = 0.0;
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rgtc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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int8_t tmp_r;
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u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1);
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dst[0] = byte_to_float_tex(tmp_r);
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dst[1] = 0.0;
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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void
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util_format_rgtc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
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u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2);
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dst[2] = 0;
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dst[3] = 255;
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}
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void
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util_format_rgtc2_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, comps = 4;
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unsigned x, y, i, j;
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unsigned block_size = 16;
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for(y = 0; y < height; y += bh) {
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const uint8_t *src = src_row;
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for(x = 0; x < width; x += bw) {
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
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u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2);
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dst[2] = 0;
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dst[3] = 255;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rgtc2_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 16;
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unsigned x, y, i, j;
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for(y = 0; y < height; y += bh) {
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uint8_t *dst = dst_row;
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for(x = 0; x < width; x += bw) {
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uint8_t tmp_r[4][4]; /* [bh][bw] */
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uint8_t tmp_g[4][4]; /* [bh][bw] */
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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tmp_r[j][i] = src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4];
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tmp_g[j][i] = src_row[((y + j)*src_stride/sizeof(*src_row) + (x + i)*4) + 1];
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}
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}
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u_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4);
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u_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4);
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dst += bytes_per_block;
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}
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dst_row += dst_stride / sizeof(*dst_row);
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}
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}
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void
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util_format_rxtc2_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height, unsigned chan2off)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 16;
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unsigned x, y, i, j;
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for(y = 0; y < height; y += bh) {
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uint8_t *dst = dst_row;
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for(x = 0; x < width; x += bw) {
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uint8_t tmp_r[4][4]; /* [bh][bw][comps] */
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uint8_t tmp_g[4][4]; /* [bh][bw][comps] */
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for(j = 0; j < bh; ++j) {
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for(i = 0; i < bw; ++i) {
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tmp_r[j][i] = float_to_ubyte(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]);
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tmp_g[j][i] = float_to_ubyte(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4 + chan2off]);
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}
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}
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u_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4);
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u_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4);
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dst += bytes_per_block;
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}
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dst_row += dst_stride / sizeof(*dst_row);
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}
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}
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void
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util_format_rgtc2_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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util_format_rxtc2_unorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 1);
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}
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void
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util_format_rgtc2_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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unsigned x, y, i, j;
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int block_size = 16;
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for(y = 0; y < height; y += 4) {
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const uint8_t *src = src_row;
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for(x = 0; x < width; x += 4) {
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for(j = 0; j < 4; ++j) {
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for(i = 0; i < 4; ++i) {
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float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
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uint8_t tmp_r, tmp_g;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
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u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
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dst[0] = ubyte_to_float(tmp_r);
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dst[1] = ubyte_to_float(tmp_g);
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rgtc2_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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uint8_t tmp_r, tmp_g;
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u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
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u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
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dst[0] = ubyte_to_float(tmp_r);
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dst[1] = ubyte_to_float(tmp_g);
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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void
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util_format_rgtc2_snorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc2_snorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc2_snorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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fprintf(stderr,"%s\n", __func__);
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}
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void
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util_format_rgtc2_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width, unsigned height)
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{
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unsigned x, y, i, j;
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int block_size = 16;
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for(y = 0; y < height; y += 4) {
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const int8_t *src = (int8_t *)src_row;
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for(x = 0; x < width; x += 4) {
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for(j = 0; j < 4; ++j) {
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for(i = 0; i < 4; ++i) {
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float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4;
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int8_t tmp_r, tmp_g;
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u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2);
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u_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2);
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dst[0] = byte_to_float_tex(tmp_r);
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dst[1] = byte_to_float_tex(tmp_g);
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dst[2] = 0.0;
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dst[3] = 1.0;
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}
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}
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src += block_size;
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}
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src_row += src_stride;
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}
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}
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void
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util_format_rxtc2_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height, unsigned chan2off)
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{
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const unsigned bw = 4, bh = 4, bytes_per_block = 16;
|
|
unsigned x, y, i, j;
|
|
|
|
for(y = 0; y < height; y += bh) {
|
|
int8_t *dst = (int8_t *)dst_row;
|
|
for(x = 0; x < width; x += bw) {
|
|
int8_t tmp_r[4][4]; /* [bh][bw][comps] */
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|
int8_t tmp_g[4][4]; /* [bh][bw][comps] */
|
|
for(j = 0; j < bh; ++j) {
|
|
for(i = 0; i < bw; ++i) {
|
|
tmp_r[j][i] = float_to_byte_tex(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]);
|
|
tmp_g[j][i] = float_to_byte_tex(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4 + chan2off]);
|
|
}
|
|
}
|
|
u_format_signed_encode_rgtc_ubyte(dst, tmp_r, 4, 4);
|
|
u_format_signed_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4);
|
|
dst += bytes_per_block;
|
|
}
|
|
dst_row += dst_stride / sizeof(*dst_row);
|
|
}
|
|
}
|
|
|
|
void
|
|
util_format_rgtc2_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, const float *src_row, unsigned src_stride, unsigned width, unsigned height)
|
|
{
|
|
util_format_rxtc2_snorm_pack_rgba_float(dst_row, dst_stride, src_row, src_stride, width, height, 1);
|
|
}
|
|
|
|
void
|
|
util_format_rgtc2_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j)
|
|
{
|
|
int8_t tmp_r, tmp_g;
|
|
u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2);
|
|
u_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2);
|
|
dst[0] = byte_to_float_tex(tmp_r);
|
|
dst[1] = byte_to_float_tex(tmp_g);
|
|
dst[2] = 0.0;
|
|
dst[3] = 1.0;
|
|
}
|
|
|
|
|
|
#define TAG(x) u_format_unsigned_##x
|
|
#define TYPE uint8_t
|
|
#define T_MIN 0
|
|
#define T_MAX 255
|
|
|
|
#include "texcompress_rgtc_tmp.h"
|
|
|
|
#undef TYPE
|
|
#undef TAG
|
|
#undef T_MIN
|
|
#undef T_MAX
|
|
|
|
|
|
#define TAG(x) u_format_signed_##x
|
|
#define TYPE int8_t
|
|
#define T_MIN (int8_t)-128
|
|
#define T_MAX (int8_t)127
|
|
|
|
#include "texcompress_rgtc_tmp.h"
|
|
|
|
#undef TYPE
|
|
#undef TAG
|
|
#undef T_MIN
|
|
#undef T_MAX
|