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-rw-r--r--src/gallium/drivers/llvmpipe/lp_tile_soa.py278
1 files changed, 278 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_soa.py b/src/gallium/drivers/llvmpipe/lp_tile_soa.py
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+++ b/src/gallium/drivers/llvmpipe/lp_tile_soa.py
@@ -0,0 +1,278 @@
+#!/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()
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-07 12:32:52 +0000