/**
* Indicates a special register, see RC_SPECIAL_xxx.
*/
- RC_FILE_SPECIAL
+ RC_FILE_SPECIAL,
+
+ /**
+ * Indicates this register should use the result of the presubtract
+ * operation.
+ */
+ RC_FILE_PRESUB
} rc_register_file;
enum {
} while(0)
#define RC_SWIZZLE_XYZW RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_W)
+#define RC_SWIZZLE_XYZ0 RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_ZERO)
+#define RC_SWIZZLE_XYZZ RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_Z)
#define RC_SWIZZLE_XXXX RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_X)
#define RC_SWIZZLE_YYYY RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_Y)
#define RC_SWIZZLE_ZZZZ RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_Z)
#define RC_SWIZZLE_WWWW RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_W)
#define RC_SWIZZLE_0000 RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_ZERO)
#define RC_SWIZZLE_1111 RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_ONE)
+#define RC_SWIZZLE_HHHH RC_MAKE_SWIZZLE_SMEAR(RC_SWIZZLE_HALF)
/**
* \name Bitmasks for components of vectors.
RC_ALURESULT_W
} rc_write_aluresult;
+typedef enum {
+ RC_PRESUB_NONE = 0,
+
+ /** 1 - 2 * src0 */
+ RC_PRESUB_BIAS,
+
+ /** src1 - src0 */
+ RC_PRESUB_SUB,
+
+ /** src1 + src0 */
+ RC_PRESUB_ADD,
+
+ /** 1 - src0 */
+ RC_PRESUB_INV
+} rc_presubtract_op;
+
+static inline int rc_presubtract_src_reg_count(rc_presubtract_op op){
+ switch(op){
+ case RC_PRESUB_BIAS:
+ case RC_PRESUB_INV:
+ return 1;
+ case RC_PRESUB_ADD:
+ case RC_PRESUB_SUB:
+ return 2;
+ default:
+ return 0;
+ }
+}
+
+#define RC_SOURCE_NONE 0x0
+#define RC_SOURCE_RGB 0x1
+#define RC_SOURCE_ALPHA 0x2
+
#endif /* RADEON_PROGRAM_CONSTANTS_H */