diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/util/u_format_access.py | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/src/gallium/auxiliary/util/u_format_access.py b/src/gallium/auxiliary/util/u_format_access.py index ca0c9765c26..fb85215d205 100644 --- a/src/gallium/auxiliary/util/u_format_access.py +++ b/src/gallium/auxiliary/util/u_format_access.py @@ -248,6 +248,24 @@ def conversion_expr(src_type, dst_type, dst_native_type, value): assert False +def compute_inverse_swizzle(format): + '''Return an array[4] of inverse swizzle terms''' + 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 + + return inv_swizzle + + def generate_format_read(format, dst_type, dst_native_type, dst_suffix): '''Generate the function to read pixels from a particular format''' @@ -330,7 +348,7 @@ def generate_format_read(format, dst_type, dst_native_type, dst_suffix): print ' }' print ' src_row += src_stride;' - print ' dst_row += dst_stride/sizeof(%s);' % dst_native_type + print ' dst_row += dst_stride/sizeof(*dst_row);' print ' }' print '}' print @@ -354,18 +372,7 @@ def generate_format_write(format, src_type, src_native_type, src_suffix): print ' const %s *src_pixel = src_row;' %src_native_type 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 + inv_swizzle = compute_inverse_swizzle(format) if format.layout in (ARITH, ARRAY): if not format.is_array(): @@ -395,7 +402,7 @@ def generate_format_write(format, src_type, src_native_type, src_suffix): print ' }' print ' dst_row += dst_stride;' - print ' src_row += src_stride/sizeof(%s);' % src_native_type + print ' src_row += src_stride/sizeof(*src_row);' print ' }' print '}' print |