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vkd3d-shader/hlsl: Handle over/underflow when parsing integer literals.

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Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Matteo Bruni
2022-05-11 16:39:08 +02:00
committed by Alexandre Julliard
parent a9dc39dd92
commit 228f7ab5cd
4 changed files with 38 additions and 36 deletions
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32
libs/vkd3d-shader/vkd3d_shader_main.c
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@@ -24,6 +24,38 @@
VKD3D_DEBUG_ENV_NAME("VKD3D_SHADER_DEBUG");
static inline int char_to_int(char c)
{
if ('0' <= c && c <= '9')
return c - '0';
if ('A' <= c && c <= 'F')
return c - 'A' + 10;
if ('a' <= c && c <= 'f')
return c - 'a' + 10;
return -1;
}
uint32_t vkd3d_parse_integer(const char *s)
{
uint32_t base = 10, ret = 0;
int digit;
if (*s == '0')
{
base = 8;
++s;
if (*s == 'x' || *s == 'X')
{
base = 16;
++s;
}
}
while ((digit = char_to_int(*s++)) >= 0)
ret = ret * base + (uint32_t)digit;
return ret;
}
void vkd3d_string_buffer_init(struct vkd3d_string_buffer *buffer)
{
buffer->buffer_size = 16;