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#!/usr/bin/env python
'''
/**************************************************************************
*
* Copyright 2009 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>
*/
'''
import sys
import os.path
sys.path.insert(0, os.path.join(os.path.dirname(sys.argv[0]), '../../auxiliary/util'))
from u_format_access import *
def generate_format_read(format, dst_type, dst_native_type, dst_suffix):
'''Generate the function to read pixels from a particular format'''
name = short_name(format)
src_native_type = native_type(format)
print 'static void'
print 'lp_tile_%s_read_%s(%s *dst, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0, unsigned w, unsigned h)' % (name, dst_suffix, dst_native_type)
print '{'
print ' unsigned x, y;'
print ' const uint8_t *src_row = src + y0*src_stride;'
print ' for (y = 0; y < h; ++y) {'
print ' const %s *src_pixel = (const %s *)(src_row + x0*%u);' % (src_native_type, src_native_type, format.stride())
print ' for (x = 0; x < w; ++x) {'
names = ['']*4
if format.colorspace == 'rgb':
for i in range(4):
swizzle = format.out_swizzle[i]
if swizzle < 4:
names[swizzle] += 'rgba'[i]
elif format.colorspace == 'zs':
swizzle = format.out_swizzle[0]
if swizzle < 4:
names[swizzle] = 'z'
else:
assert False
else:
assert False
if format.layout == ARITH:
print ' %s pixel = *src_pixel++;' % src_native_type
shift = 0;
for i in range(4):
src_type = format.in_types[i]
width = src_type.size
if names[i]:
value = 'pixel'
mask = (1 << width) - 1
if shift:
value = '(%s >> %u)' % (value, shift)
if shift + width < format.block_size():
value = '(%s & 0x%x)' % (value, mask)
value = conversion_expr(src_type, dst_type, dst_native_type, value)
print ' %s %s = %s;' % (dst_native_type, names[i], value)
shift += width
elif format.layout == ARRAY:
for i in range(4):
src_type = format.in_types[i]
if names[i]:
value = '(*src_pixel++)'
value = conversion_expr(src_type, dst_type, dst_native_type, value)
print ' %s %s = %s;' % (dst_native_type, names[i], value)
else:
assert False
for i in range(4):
if format.colorspace == 'rgb':
swizzle = format.out_swizzle[i]
if swizzle < 4:
value = names[swizzle]
elif swizzle == SWIZZLE_0:
value = '0'
elif swizzle == SWIZZLE_1:
value = '1'
else:
assert False
elif format.colorspace == 'zs':
if i < 3:
value = 'z'
else:
value = '1'
else:
assert False
print ' TILE_PIXEL(dst, x, y, %u) = %s; /* %s */' % (i, value, 'rgba'[i])
print ' }'
print ' src_row += src_stride;'
print ' }'
print '}'
print
def generate_format_write(format, src_type, src_native_type, src_suffix):
'''Generate the function to write pixels to a particular format'''
name = short_name(format)
dst_native_type = native_type(format)
print 'static void'
print 'lp_tile_%s_write_%s(const %s *src, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0, unsigned w, unsigned h)' % (name, src_suffix, src_native_type)
print '{'
print ' unsigned x, y;'
print ' uint8_t *dst_row = dst + y0*dst_stride;'
print ' for (y = 0; y < h; ++y) {'
print ' %s *dst_pixel = (%s *)(dst_row + x0*%u);' % (dst_native_type, dst_native_type, format.stride())
print ' for (x = 0; x < w; ++x) {'
inv_swizzle = [None]*4
if format.colorspace == 'rgb':
for i in range(4):
swizzle = format.out_swizzle[i]
if swizzle < 4:
inv_swizzle[swizzle] = i
elif format.colorspace == 'zs':
swizzle = format.out_swizzle[0]
if swizzle < 4:
inv_swizzle[swizzle] = 0
else:
assert False
if format.layout == ARITH:
print ' %s pixel = 0;' % dst_native_type
shift = 0;
for i in range(4):
dst_type = format.in_types[i]
width = dst_type.size
if inv_swizzle[i] is not None:
value = 'TILE_PIXEL(src, x, y, %u)' % inv_swizzle[i]
value = conversion_expr(src_type, dst_type, dst_native_type, value)
if shift:
value = '(%s << %u)' % (value, shift)
print ' pixel |= %s;' % value
shift += width
print ' *dst_pixel++ = pixel;'
elif format.layout == ARRAY:
for i in range(4):
dst_type = format.in_types[i]
if inv_swizzle[i] is not None:
value = 'TILE_PIXEL(src, x, y, %u)' % inv_swizzle[i]
value = conversion_expr(src_type, dst_type, dst_native_type, value)
print ' *dst_pixel++ = %s;' % value
else:
assert False
print ' }'
print ' dst_row += dst_stride;'
print ' }'
print '}'
print
def generate_read(formats, dst_type, dst_native_type, dst_suffix):
'''Generate the dispatch function to read pixels from any format'''
for format in formats:
if is_format_supported(format):
generate_format_read(format, dst_type, dst_native_type, dst_suffix)
print 'void'
print 'lp_tile_read_%s(enum pipe_format format, %s *dst, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h)' % (dst_suffix, dst_native_type)
print '{'
print ' void (*func)(%s *dst, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0, unsigned w, unsigned h);' % dst_native_type
print ' switch(format) {'
for format in formats:
if is_format_supported(format):
print ' case %s:' % format.name
print ' func = &lp_tile_%s_read_%s;' % (short_name(format), dst_suffix)
print ' break;'
print ' default:'
print ' debug_printf("unsupported format\\n");'
print ' return;'
print ' }'
print ' func(dst, (const uint8_t *)src, src_stride, x, y, w, h);'
print '}'
print
def generate_write(formats, src_type, src_native_type, src_suffix):
'''Generate the dispatch function to write pixels to any format'''
for format in formats:
if is_format_supported(format):
generate_format_write(format, src_type, src_native_type, src_suffix)
print 'void'
print 'lp_tile_write_%s(enum pipe_format format, const %s *src, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h)' % (src_suffix, src_native_type)
print '{'
print ' void (*func)(const %s *src, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0, unsigned w, unsigned h);' % src_native_type
print ' switch(format) {'
for format in formats:
if is_format_supported(format):
print ' case %s:' % format.name
print ' func = &lp_tile_%s_write_%s;' % (short_name(format), src_suffix)
print ' break;'
print ' default:'
print ' debug_printf("unsupported format\\n");'
print ' return;'
print ' }'
print ' func(src, (uint8_t *)dst, dst_stride, x, y, w, h);'
print '}'
print
def main():
formats = []
for arg in sys.argv[1:]:
formats.extend(parse(arg))
print '/* This file is autogenerated by lp_tile_soa.py from u_format.csv. Do not edit directly. */'
print
# This will print the copyright message on the top of this file
print __doc__.strip()
print
print '#include "pipe/p_compiler.h"'
print '#include "util/u_format.h"'
print '#include "util/u_math.h"'
print '#include "lp_tile_soa.h"'
print
print 'const unsigned char'
print 'tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH] = {'
print ' { 0, 1, 4, 5, 8, 9, 12, 13},'
print ' { 2, 3, 6, 7, 10, 11, 14, 15}'
print '};'
print
generate_clamp()
type = Type(UNSIGNED, True, 8)
native_type = 'uint8_t'
suffix = '4ub'
generate_read(formats, type, native_type, suffix)
generate_write(formats, type, native_type, suffix)
if __name__ == '__main__':
main()
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