diff options
Diffstat (limited to 'src/mesa/program/program_parse_extra.c')
| -rw-r--r-- | src/mesa/program/program_parse_extra.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/mesa/program/program_parse_extra.c b/src/mesa/program/program_parse_extra.c index 4d928483e16..e8e1912eb85 100644 --- a/src/mesa/program/program_parse_extra.c +++ b/src/mesa/program/program_parse_extra.c @@ -194,15 +194,21 @@ _mesa_ARBfp_parse_option(struct asm_parser_state *state, const char *option) } else if (strncmp(option, "precision_hint_", 15) == 0) { option += 15; - if (state->option.PrecisionHint == OPTION_NONE) { - if (strcmp(option, "nicest") == 0) { - state->option.PrecisionHint = OPTION_NICEST; - return 1; - } else if (strcmp(option, "fastest") == 0) { - state->option.PrecisionHint = OPTION_FASTEST; - return 1; - } - } + /* The ARB_fragment_program spec, 3.11.4.5.2 says: + * + * "Only one precision control option may be specified by any given + * fragment program. A fragment program that specifies both the + * "ARB_precision_hint_fastest" and "ARB_precision_hint_nicest" + * program options will fail to load. + */ + + if (strcmp(option, "nicest") == 0 && state->option.PrecisionHint != OPTION_FASTEST) { + state->option.PrecisionHint = OPTION_NICEST; + return 1; + } else if (strcmp(option, "fastest") == 0 && state->option.PrecisionHint != OPTION_NICEST) { + state->option.PrecisionHint = OPTION_FASTEST; + return 1; + } return 0; } else if (strcmp(option, "draw_buffers") == 0) { |