[Mesa-dev] [PATCH 10/26] python: Use explicit integer divisions
Eric Engestrom
eric.engestrom at intel.com
Thu Jul 5 14:55:01 UTC 2018
On Thursday, 2018-07-05 15:17:41 +0200, Mathieu Bridon wrote:
> In Python 2, divisions return an integer:
>
> >>> 32 / 4
> 8
>
> In Python 3 though, they return floats:
>
> >>> 32 / 4
> 8.0
>
> Explicitly converting to integers make the scripts compatible with both
> Python 2 and 3.
I think an explicit `math.floor()` would be better than using the
implicit truncation of casting to an int.
(and I'm not 100% sure we want floor() on all these)
>
> Signed-off-by: Mathieu Bridon <bochecha at daitauha.fr>
> ---
> src/gallium/auxiliary/util/u_format_pack.py | 2 +-
> src/gallium/auxiliary/util/u_format_parse.py | 4 ++--
> src/mapi/glapi/gen/glX_proto_send.py | 2 +-
> src/mesa/main/format_info.py | 2 +-
> src/mesa/main/format_pack.py | 6 +++---
> src/mesa/main/format_unpack.py | 6 +++---
> 6 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/src/gallium/auxiliary/util/u_format_pack.py b/src/gallium/auxiliary/util/u_format_pack.py
> index 7a952a48b3..1cfd85fb7f 100644
> --- a/src/gallium/auxiliary/util/u_format_pack.py
> +++ b/src/gallium/auxiliary/util/u_format_pack.py
> @@ -240,7 +240,7 @@ def value_to_native(type, value):
> return truncate_mantissa(value, 23)
> return value
> if type.type == FIXED:
> - return int(value * (1 << (type.size/2)))
> + return int(value * (1 << int(type.size/2)))
> if not type.norm:
> return int(value)
> if type.type == UNSIGNED:
> diff --git a/src/gallium/auxiliary/util/u_format_parse.py b/src/gallium/auxiliary/util/u_format_parse.py
> index c0456f6d15..315c771081 100644
> --- a/src/gallium/auxiliary/util/u_format_parse.py
> +++ b/src/gallium/auxiliary/util/u_format_parse.py
> @@ -76,7 +76,7 @@ class Channel:
> if self.type == FLOAT:
> return VERY_LARGE
> if self.type == FIXED:
> - return (1 << (self.size/2)) - 1
> + return (1 << int(self.size/2)) - 1
> if self.norm:
> return 1
> if self.type == UNSIGNED:
> @@ -90,7 +90,7 @@ class Channel:
> if self.type == FLOAT:
> return -VERY_LARGE
> if self.type == FIXED:
> - return -(1 << (self.size/2))
> + return -(1 << int(self.size/2))
> if self.type == UNSIGNED:
> return 0
> if self.norm:
> diff --git a/src/mapi/glapi/gen/glX_proto_send.py b/src/mapi/glapi/gen/glX_proto_send.py
> index a920ecc012..28f8a0d67b 100644
> --- a/src/mapi/glapi/gen/glX_proto_send.py
> +++ b/src/mapi/glapi/gen/glX_proto_send.py
> @@ -809,7 +809,7 @@ generic_%u_byte( GLint rop, const void * ptr )
> # Dividing by the array size (1 for
> # non-arrays) gives us this.
>
> - s = p.size() / p.get_element_count()
> + s = int(p.size() / p.get_element_count())
> print(" %s __glXReadReply(dpy, %s, %s, %s);" % (return_str, s, p.name, aa))
> got_reply = 1
>
> diff --git a/src/mesa/main/format_info.py b/src/mesa/main/format_info.py
> index bbecaa2451..285bf13e1b 100644
> --- a/src/mesa/main/format_info.py
> +++ b/src/mesa/main/format_info.py
> @@ -198,7 +198,7 @@ for fmat in formats:
> chan = fmat.array_element()
> norm = chan.norm or chan.type == parser.FLOAT
> print(' .ArrayFormat = MESA_ARRAY_FORMAT({0}),'.format(', '.join([
> - str(chan.size / 8),
> + str(int(chan.size / 8)),
> str(int(chan.sign)),
> str(int(chan.type == parser.FLOAT)),
> str(int(norm)),
> diff --git a/src/mesa/main/format_pack.py b/src/mesa/main/format_pack.py
> index d3c8d24acd..3b69580a93 100644
> --- a/src/mesa/main/format_pack.py
> +++ b/src/mesa/main/format_pack.py
> @@ -356,7 +356,7 @@ _mesa_pack_ubyte_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> pack_ubyte_${f.short_name()}(src[i], d);
> - d += ${f.block_size() / 8};
> + d += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> @@ -388,7 +388,7 @@ _mesa_pack_uint_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> pack_uint_${f.short_name()}(src[i], d);
> - d += ${f.block_size() / 8};
> + d += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> @@ -418,7 +418,7 @@ _mesa_pack_float_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> pack_float_${f.short_name()}(src[i], d);
> - d += ${f.block_size() / 8};
> + d += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> diff --git a/src/mesa/main/format_unpack.py b/src/mesa/main/format_unpack.py
> index 286c08e621..feddaed5cd 100644
> --- a/src/mesa/main/format_unpack.py
> +++ b/src/mesa/main/format_unpack.py
> @@ -322,7 +322,7 @@ _mesa_unpack_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> unpack_float_${f.short_name()}(s, dst[i]);
> - s += ${f.block_size() / 8};
> + s += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> @@ -355,7 +355,7 @@ _mesa_unpack_ubyte_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> unpack_ubyte_${f.short_name()}(s, dst[i]);
> - s += ${f.block_size() / 8};
> + s += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> @@ -397,7 +397,7 @@ _mesa_unpack_uint_rgba_row(mesa_format format, GLuint n,
> case ${f.name}:
> for (i = 0; i < n; ++i) {
> unpack_int_${f.short_name()}(s, dst[i]);
> - s += ${f.block_size() / 8};
> + s += ${int(f.block_size() / 8)};
> }
> break;
> %endfor
> --
> 2.17.1
>
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