+/**
+ * Fragment program helper macros
+ */
+
+/* Produce unshifted source selectors */
+#define FP_TMP(idx) (idx)
+#define FP_CONST(idx) ((idx) | (1 << 5))
+
+/* Produce source/dest selector dword */
+#define FP_SELC_MASK_NO 0
+#define FP_SELC_MASK_X 1
+#define FP_SELC_MASK_Y 2
+#define FP_SELC_MASK_XY 3
+#define FP_SELC_MASK_Z 4
+#define FP_SELC_MASK_XZ 5
+#define FP_SELC_MASK_YZ 6
+#define FP_SELC_MASK_XYZ 7
+
+#define FP_SELC(destidx,regmask,outmask,src0,src1,src2) \
+ (((destidx) << R300_ALU_DSTC_SHIFT) | \
+ (FP_SELC_MASK_##regmask << 23) | \
+ (FP_SELC_MASK_##outmask << 26) | \
+ ((src0) << R300_ALU_SRC0C_SHIFT) | \
+ ((src1) << R300_ALU_SRC1C_SHIFT) | \
+ ((src2) << R300_ALU_SRC2C_SHIFT))
+
+#define FP_SELA_MASK_NO 0
+#define FP_SELA_MASK_W 1
+
+#define FP_SELA(destidx,regmask,outmask,src0,src1,src2) \
+ (((destidx) << R300_ALU_DSTA_SHIFT) | \
+ (FP_SELA_MASK_##regmask << 23) | \
+ (FP_SELA_MASK_##outmask << 24) | \
+ ((src0) << R300_ALU_SRC0A_SHIFT) | \
+ ((src1) << R300_ALU_SRC1A_SHIFT) | \
+ ((src2) << R300_ALU_SRC2A_SHIFT))
+
+/* Produce unshifted argument selectors */
+#define FP_ARGC(source) R300_ALU_ARGC_##source
+#define FP_ARGA(source) R300_ALU_ARGA_##source
+#define FP_ABS(arg) ((arg) | (1 << 6))
+#define FP_NEG(arg) ((arg) ^ (1 << 5))
+
+/* Produce instruction dword */
+#define FP_INSTRC(opcode,arg0,arg1,arg2) \
+ (R300_ALU_OUTC_##opcode | \
+ ((arg0) << R300_ALU_ARG0C_SHIFT) | \
+ ((arg1) << R300_ALU_ARG1C_SHIFT) | \
+ ((arg2) << R300_ALU_ARG2C_SHIFT))
+
+#define FP_INSTRA(opcode,arg0,arg1,arg2) \
+ (R300_ALU_OUTA_##opcode | \
+ ((arg0) << R300_ALU_ARG0A_SHIFT) | \
+ ((arg1) << R300_ALU_ARG1A_SHIFT) | \
+ ((arg2) << R300_ALU_ARG2A_SHIFT))
+
+#endif
+
+static void r300EmitClearState(GLcontext * ctx);