diff options
Diffstat (limited to 'src/mesa/shader/prog_parameter.c')
| -rw-r--r-- | src/mesa/shader/prog_parameter.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c index d09cc65937..e543871ab7 100644 --- a/src/mesa/shader/prog_parameter.c +++ b/src/mesa/shader/prog_parameter.c @@ -239,6 +239,9 @@ _mesa_add_sampler(struct gl_program_parameter_list *paramList, } +/** + * Add parameter representing a varying variable. + */ GLint _mesa_add_varying(struct gl_program_parameter_list *paramList, const char *name, GLuint size) @@ -256,6 +259,31 @@ _mesa_add_varying(struct gl_program_parameter_list *paramList, } +/** + * Add parameter representing a vertex program attribute. + */ +GLint +_mesa_add_attribute(struct gl_program_parameter_list *paramList, + const char *name, GLint attrib) +{ + GLint size = 4; /* XXX ok? */ + GLint i = _mesa_lookup_parameter_index(paramList, -1, name); + if (i >= 0) { + /* replace */ + ASSERT(paramList->Parameters[i].StateIndexes[0] == STATE_USER_ATTRIB); + paramList->Parameters[i].StateIndexes[1] = attrib; + } + else { + /* add */ + i = _mesa_add_parameter(paramList, name, NULL, size, PROGRAM_INPUT); + if (i >= 0) { + paramList->Parameters[i].StateIndexes[0] = STATE_USER_ATTRIB; + paramList->Parameters[i].StateIndexes[1] = attrib; + } + } + return i; +} + #if 0 /* not used yet */ |