from u_format_pack import *
+def is_format_supported(format):
+ '''Determines whether we actually have the plumbing necessary to generate the
+ to read/write to/from this format.'''
+
+ # FIXME: Ideally we would support any format combination here.
+
+ if format.layout != PLAIN:
+ return False
+
+ for i in range(4):
+ channel = format.channels[i]
+ if channel.type not in (VOID, UNSIGNED, SIGNED, FLOAT):
+ return False
+ if channel.type == FLOAT and channel.size not in (16, 32 ,64):
+ return False
+
+ if format.colorspace not in ('rgb', 'srgb'):
+ return False
+
+ return True
+
+
def generate_format_read(format, dst_channel, dst_native_type, dst_suffix):
'''Generate the function to read pixels from a particular 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 'lp_tile_%s_swizzle_%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;'
return expr
-def emit_unrolled_write_code(format, src_channel):
+def emit_unrolled_unswizzle_code(format, src_channel):
'''Emit code for writing a block based on unrolled loops.
This is considerably faster than the TILE_PIXEL-based code below.
'''
print ' }'
-def emit_tile_pixel_write_code(format, src_channel):
+def emit_tile_pixel_unswizzle_code(format, src_channel):
'''Emit code for writing a block based on the TILE_PIXEL macro.'''
dst_native_type = native_type(format)
value = 'TILE_PIXEL(src, x, y, %u)' % inv_swizzle[i]
value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
print ' *dst_pixel++ = %s;' % value
- else:
+ elif dst_channel.size:
print ' ++dst_pixel;'
else:
assert False
name = format.short_name()
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 'lp_tile_%s_unswizzle_%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 '{'
if format.layout == PLAIN \
and format.colorspace == 'rgb' \
and not format.is_mixed() \
and (format.channels[0].type == UNSIGNED \
or format.channels[1].type == UNSIGNED):
- emit_unrolled_write_code(format, src_channel)
+ emit_unrolled_unswizzle_code(format, src_channel)
else:
- emit_tile_pixel_write_code(format, src_channel)
+ emit_tile_pixel_unswizzle_code(format, src_channel)
print '}'
print
-def generate_read(formats, dst_channel, dst_native_type, dst_suffix):
+def generate_swizzle(formats, dst_channel, dst_native_type, dst_suffix):
'''Generate the dispatch function to read pixels from any format'''
for format in formats:
generate_format_read(format, dst_channel, 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 'lp_tile_swizzle_%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 '#ifdef DEBUG'
+ print ' lp_tile_swizzle_count += 1;'
+ print '#endif'
print ' switch(format) {'
for format in formats:
if is_format_supported(format):
print ' case %s:' % format.name
- print ' func = &lp_tile_%s_read_%s;' % (format.short_name(), dst_suffix)
+ print ' func = &lp_tile_%s_swizzle_%s;' % (format.short_name(), dst_suffix)
print ' break;'
print ' default:'
print ' debug_printf("%s: unsupported format %s\\n", __FUNCTION__, util_format_name(format));'
print
-def generate_write(formats, src_channel, src_native_type, src_suffix):
+def generate_unswizzle(formats, src_channel, src_native_type, src_suffix):
'''Generate the dispatch function to write pixels to any format'''
for format in formats:
generate_format_write(format, src_channel, 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 'lp_tile_unswizzle_%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 '#ifdef DEBUG'
+ print ' lp_tile_unswizzle_count += 1;'
+ print '#endif'
print ' switch(format) {'
for format in formats:
if is_format_supported(format):
print ' case %s:' % format.name
- print ' func = &lp_tile_%s_write_%s;' % (format.short_name(), src_suffix)
+ print ' func = &lp_tile_%s_unswizzle_%s;' % (format.short_name(), src_suffix)
print ' break;'
print ' default:'
print ' debug_printf("%s: unsupported format %s\\n", __FUNCTION__, util_format_name(format));'
print '#include "pipe/p_compiler.h"'
print '#include "util/u_format.h"'
print '#include "util/u_math.h"'
+ print '#include "util/u_half.h"'
print '#include "lp_tile_soa.h"'
print
+ print '#ifdef DEBUG'
+ print 'unsigned lp_tile_unswizzle_count = 0;'
+ print 'unsigned lp_tile_swizzle_count = 0;'
+ print '#endif'
+ print
print 'const unsigned char'
print 'tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH] = {'
print ' { 0, 1, 4, 5},'
native_type = 'uint8_t'
suffix = '4ub'
- generate_read(formats, channel, native_type, suffix)
- generate_write(formats, channel, native_type, suffix)
+ generate_swizzle(formats, channel, native_type, suffix)
+ generate_unswizzle(formats, channel, native_type, suffix)
if __name__ == '__main__':
projects / mesa.git / blobdiff