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-rw-r--r--src/mesa/shader/slang/slang_typeinfo.c27
-rw-r--r--src/mesa/shader/slang/slang_typeinfo.h20
2 files changed, 45 insertions, 2 deletions
diff --git a/src/mesa/shader/slang/slang_typeinfo.c b/src/mesa/shader/slang/slang_typeinfo.c
index 4a48bc8b8e..a96f2fb4c2 100644
--- a/src/mesa/shader/slang/slang_typeinfo.c
+++ b/src/mesa/shader/slang/slang_typeinfo.c
@@ -258,6 +258,7 @@ slang_fully_specified_type_copy(slang_fully_specified_type * x,
z.precision = y->precision;
z.variant = y->variant;
z.centroid = y->centroid;
+ z.layout = y->layout;
z.array_len = y->array_len;
if (!slang_type_specifier_copy(&z.specifier, &y->specifier)) {
slang_fully_specified_type_destruct(&z);
@@ -269,6 +270,32 @@ slang_fully_specified_type_copy(slang_fully_specified_type * x,
}
+/**
+ * Test if two fully specified types are compatible. This is a bit
+ * looser than testing for equality. We don't check the precision,
+ * variant, centroid, etc. information.
+ * XXX this may need some tweaking.
+ */
+GLboolean
+slang_fully_specified_types_compatible(const slang_fully_specified_type * x,
+ const slang_fully_specified_type * y)
+{
+ if (!slang_type_specifier_equal(&x->specifier, &y->specifier))
+ return GL_FALSE;
+
+ if (x->qualifier == SLANG_QUAL_FIXEDINPUT &&
+ y->qualifier == SLANG_QUAL_VARYING)
+ ; /* ok */
+ else if (x->qualifier != y->qualifier)
+ return GL_FALSE;
+
+ /* Note: don't compare precision, variant, centroid */
+
+ /* XXX array length? */
+
+ return GL_TRUE;
+}
+
GLvoid
slang_type_specifier_ctr(slang_type_specifier * self)
diff --git a/src/mesa/shader/slang/slang_typeinfo.h b/src/mesa/shader/slang/slang_typeinfo.h
index e6fecd350a..aa5f14ebc7 100644
--- a/src/mesa/shader/slang/slang_typeinfo.h
+++ b/src/mesa/shader/slang/slang_typeinfo.h
@@ -68,6 +68,18 @@ typedef enum slang_type_centroid_
} slang_type_centroid;
+/**
+ * These only apply to gl_FragCoord, but other layout qualifiers may
+ * appear in the future.
+ */
+typedef enum slang_layout_qualifier_
+{
+ SLANG_LAYOUT_NONE = 0x0,
+ SLANG_LAYOUT_UPPER_LEFT_BIT = 0x1,
+ SLANG_LAYOUT_PIXEL_CENTER_INTEGER_BIT = 0x2
+} slang_layout_qualifier;
+
+
typedef enum slang_type_qualifier_
{
SLANG_QUAL_NONE,
@@ -170,8 +182,8 @@ slang_type_specifier_equal(const slang_type_specifier *,
extern GLboolean
-slang_type_specifier_compatible(const slang_type_specifier * x,
- const slang_type_specifier * y);
+slang_type_specifier_compatible(const slang_type_specifier *x,
+ const slang_type_specifier *y);
typedef struct slang_fully_specified_type_
@@ -181,6 +193,7 @@ typedef struct slang_fully_specified_type_
slang_type_precision precision;
slang_type_variant variant;
slang_type_centroid centroid;
+ slang_layout_qualifier layout;
GLint array_len; /**< -1 if not an array type */
} slang_fully_specified_type;
@@ -194,6 +207,9 @@ extern int
slang_fully_specified_type_copy(slang_fully_specified_type *,
const slang_fully_specified_type *);
+GLboolean
+slang_fully_specified_types_compatible(const slang_fully_specified_type * x,
+ const slang_fully_specified_type * y);
typedef struct slang_typeinfo_