diff options
Diffstat (limited to 'src/glsl/pp/sl_pp_line.c')
| -rw-r--r-- | src/glsl/pp/sl_pp_line.c | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/src/glsl/pp/sl_pp_line.c b/src/glsl/pp/sl_pp_line.c index 3300a4785ba..b62af185bf5 100644 --- a/src/glsl/pp/sl_pp_line.c +++ b/src/glsl/pp/sl_pp_line.c @@ -29,16 +29,44 @@ #include "sl_pp_process.h" +static int +_parse_integer(const char *input, + unsigned int *number) +{ + unsigned int n = 0; + + while (*input >= '0' && *input <= '9') { + if (n * 10 < n) { + /* Overflow. */ + return -1; + } + + n = n * 10 + (*input++ - '0'); + } + + if (*input != '\0') { + /* Invalid decimal number. */ + return -1; + } + + *number = n; + return 0; +} + + int sl_pp_process_line(struct sl_pp_context *context, const struct sl_pp_token_info *input, unsigned int first, - unsigned int last) + unsigned int last, + struct sl_pp_process_state *pstate) { unsigned int i; struct sl_pp_process_state state; int line_number = -1; int file_number = -1; + const char *str; + unsigned int line; memset(&state, 0, sizeof(state)); for (i = first; i < last;) { @@ -89,7 +117,22 @@ sl_pp_process_line(struct sl_pp_context *context, free(state.out); - /* TODO: Do something with line and file numbers. */ + str = sl_pp_context_cstr(context, line_number); + if (_parse_integer(str, &line)) { + return -1; + } + + if (context->line != line) { + struct sl_pp_token_info ti; + + ti.token = SL_PP_LINE; + ti.data.line = line; + if (sl_pp_process_out(pstate, &ti)) { + return -1; + } + } + + /* TODO: Do something with the file number. */ return 0; } |