gallium: add and use generic function for querying patented format support (v2)

v2: Unsigned floats are allowed regardless of the configure switch.

2 files changed, 3 insertions, 19 deletions

diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index e1f5a9fd221..acb7d9f02d2 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -334,6 +334,9 @@ static boolean r300_is_format_supported(struct pipe_screen* screen,
                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
                             format == PIPE_FORMAT_R16G16B16A16_FLOAT;
 
+    if (!util_format_is_supported(format, usage))
+       return FALSE;
+
     /* Check multisampling support. */
     switch (sample_count) {
         case 0:
diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c
index b4d45f5eee0..afc1451183d 100644
--- a/src/gallium/drivers/r300/r300_state_derived.c
+++ b/src/gallium/drivers/r300/r300_state_derived.c
@@ -741,25 +741,6 @@ static uint32_t r300_get_border_color(enum pipe_format format,
     return uc.ui;
 }
 
-static boolean util_format_is_float(enum pipe_format format)
-{
-    const struct util_format_description *desc = util_format_description(format);
-    unsigned i;
-
-    if (!format)
-       return FALSE;
-
-    /* Find the first non-void channel. */
-    for (i = 0; i < 4; i++)
-        if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID)
-            break;
-
-    if (i == 4)
-        return FALSE;
-
-    return desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT ? TRUE : FALSE;
-}
-
 static void r300_merge_textures_and_samplers(struct r300_context* r300)
 {
     struct r300_textures_state *state =