diff options
| -rw-r--r-- | src/mesa/shader/prog_parameter.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c index a87dafc598..870e826460 100644 --- a/src/mesa/shader/prog_parameter.c +++ b/src/mesa/shader/prog_parameter.c @@ -493,17 +493,28 @@ _mesa_lookup_parameter_constant(const struct gl_program_parameter_list *list, } } } - else if (list->Parameters[i].Size >= vSize) { - /* see if we can match this constant */ - GLuint match = 0, j; + else if (vSize <= list->Parameters[i].Size) { + /* see if we can match this constant (with a swizzle) */ + GLuint swz[4]; + GLuint match = 0, j, k; for (j = 0; j < vSize; j++) { - if (list->ParameterValues[i][j] == v[j]) { + if (v[j] == list->ParameterValues[i][j]) { + swz[j] = j; match++; } + else { + for (k = 0; k < list->Parameters[i].Size; k++) { + if (v[j] == list->ParameterValues[i][k]) { + swz[j] = k; + match++; + break; + } + } + } } if (match == vSize) { *posOut = i; - *swizzleOut = SWIZZLE_NOOP; + *swizzleOut = MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[3]); return GL_TRUE; } } |