mirrors/wayland
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wayland/wayland.git synced 2026-02-27 01:41:06 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add support for signed 24.8 decimal numbers

Browse source 
'fixed' is a signed decimal type which offers a sign bit, 23 bits of
integer precision, and 8 bits of decimal precision.  This is exposed as
an opaque struct with conversion helpers to and from double and int on
the C API side.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
This commit is contained in:
Daniel Stone 2012-05-08 17:17:25 +01:00 • committed by Kristian Høgsberg
parent c49f632dae
commit c5aba11acc
6 changed files with 81 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

20
src/connection.c
View file

@ -22,6 +22,7 @@
#define _GNU_SOURCE
#include <math.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
@ -428,6 +429,13 @@ wl_closure_vmarshal(struct wl_closure *closure,
for (i = 2; i < count; i++) {
switch (message->signature[i - 2]) {
case 'f':
closure->types[i] = &ffi_type_sint32;
closure->args[i] = p;
if (end - p < 1)
goto err;
*p++ = va_arg(ap, wl_fixed_t);
break;
case 'u':
closure->types[i] = &ffi_type_uint32;
closure->args[i] = p;
@ -611,6 +619,10 @@ wl_connection_demarshal(struct wl_connection *connection,
closure->types[i] = &ffi_type_sint32;
closure->args[i] = p++;
break;
case 'f':
closure->types[i] = &ffi_type_sint32;
closure->args[i] = p++;
break;
case 's':
closure->types[i] = &ffi_type_pointer;
length = *p++;
@ -812,6 +824,7 @@ void
wl_closure_print(struct wl_closure *closure, struct wl_object *target, int send)
{
union wl_value *value;
int32_t si;
int i;
struct timespec tp;
unsigned int time;
@ -835,7 +848,12 @@ wl_closure_print(struct wl_closure *closure, struct wl_object *target, int send)
fprintf(stderr, "%u", value->uint32);
break;
case 'i':
fprintf(stderr, "%d", value->uint32);
si = (int32_t) value->uint32;
fprintf(stderr, "%d", si);
break;
case 'f':
si = (int32_t) value->uint32;
fprintf(stderr, "%f", (double) si / 256.0);
break;
case 's':
fprintf(stderr, "\"%s\"", value->string);