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/**************************************************************************
*
* Copyright 2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* @file
* Pixel format accessor functions.
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#include "u_format.h"
#include "u_format_s3tc.h"
#include "u_half.h"
void
util_format_read_4f(enum pipe_format format,
float *dst, unsigned dst_stride,
const void *src, unsigned src_stride,
unsigned x, unsigned y, unsigned w, unsigned h)
{
const struct util_format_description *format_desc;
const uint8_t *src_row;
float *dst_row;
format_desc = util_format_description(format);
assert(x % format_desc->block.width == 0);
assert(y % format_desc->block.height == 0);
src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
dst_row = dst;
format_desc->unpack_float(dst_row, dst_stride, src_row, src_stride, w, h);
}
void
util_format_write_4f(enum pipe_format format,
const float *src, unsigned src_stride,
void *dst, unsigned dst_stride,
unsigned x, unsigned y, unsigned w, unsigned h)
{
const struct util_format_description *format_desc;
uint8_t *dst_row;
const float *src_row;
format_desc = util_format_description(format);
assert(x % format_desc->block.width == 0);
assert(y % format_desc->block.height == 0);
dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
src_row = src;
format_desc->pack_float(dst_row, dst_stride, src_row, src_stride, w, h);
}
void
util_format_read_4ub(enum pipe_format format, uint8_t *dst, unsigned dst_stride, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h)
{
const struct util_format_description *format_desc;
const uint8_t *src_row;
uint8_t *dst_row;
format_desc = util_format_description(format);
assert(x % format_desc->block.width == 0);
assert(y % format_desc->block.height == 0);
src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
dst_row = dst;
format_desc->unpack_8unorm(dst_row, dst_stride, src_row, src_stride, w, h);
}
void
util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_stride, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h)
{
const struct util_format_description *format_desc;
uint8_t *dst_row;
const uint8_t *src_row;
format_desc = util_format_description(format);
assert(x % format_desc->block.width == 0);
assert(y % format_desc->block.height == 0);
dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
src_row = src;
format_desc->pack_8unorm(dst_row, dst_stride, src_row, src_stride, w, h);
}
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