gallium/util: add functions for manipulating swizzles

[mesa.git] / src / gallium / drivers / r300 / r300_state_derived.c

diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c
index f63114e7eb74a67cbd3227717aa5f6c2e34f603c..45c11fce1fe564436fc761db003e003579616bd7 100644 (file)
--- a/src/gallium/drivers/r300/r300_state_derived.c
+++ b/src/gallium/drivers/r300/r300_state_derived.c
@@ -605,7 +605,6 @@ static uint32_t r300_get_border_color(enum pipe_format format,
 {
     const struct util_format_description *desc;
     float border_swizzled[4] = {0};
-    unsigned i;
     union util_color uc = {0};
 
     desc = util_format_description(format);
@@ -629,22 +628,7 @@ static uint32_t r300_get_border_color(enum pipe_format format,
     }
 
     /* Apply inverse swizzle of the format. */
-    for (i = 0; i < 4; i++) {
-        switch (desc->swizzle[i]) {
-        case UTIL_FORMAT_SWIZZLE_X:
-            border_swizzled[0] = border[i];
-            break;
-        case UTIL_FORMAT_SWIZZLE_Y:
-            border_swizzled[1] = border[i];
-            break;
-        case UTIL_FORMAT_SWIZZLE_Z:
-            border_swizzled[2] = border[i];
-            break;
-        case UTIL_FORMAT_SWIZZLE_W:
-            border_swizzled[3] = border[i];
-            break;
-        }
-    }
+    util_format_unswizzle_4f(border_swizzled, border, desc->swizzle);
 
     /* Compressed formats. */
     if (util_format_is_compressed(format)) {