1 files changed, 83 insertions, 0 deletions
diff --git a/Source/DirectFB/gfxdrivers/radeon/vertex_shader.h b/Source/DirectFB/gfxdrivers/radeon/vertex_shader.h
new file mode 100755
index 0000000..4fd0fd2
--- /dev/null
+++ b/Source/DirectFB/gfxdrivers/radeon/vertex_shader.h
@@ -0,0 +1,83 @@
+#ifndef __VERTEX_SHADER_H__
+#define __VERTEX_SHADER_H__
+
+#define VSF_FLAG_X	1
+#define VSF_FLAG_Y	2
+#define VSF_FLAG_Z	4
+#define VSF_FLAG_W	8
+#define VSF_FLAG_XYZ	(VSF_FLAG_X | VSF_FLAG_Y | VSF_FLAG_Z)
+#define VSF_FLAG_ALL  0xf
+#define VSF_FLAG_NONE  0
+
+#define VSF_OUT_CLASS_TMP	0
+#define VSF_OUT_CLASS_ADDR	1
+#define VSF_OUT_CLASS_RESULT	2
+
+
+/* first CARD32 of an instruction */
+
+/* possible operations: 
+    DOT, MUL, ADD, MAD, FRC, MAX, MIN, SGE, SLT, EXP, LOG, LIT, POW, RCP, RSQ, EX2,
+    LG2, MAD_2 */
+
+#define MAKE_VSF_OP(op, out_reg_index, out_reg_fields, class) \
+   ((op)  \
+  	| ((out_reg_index) << R300_VPI_OUT_REG_INDEX_SHIFT) 	\
+ 	 | ((out_reg_fields) << 20) 	\
+  	| ( (class) << 8 ) )
+
+#define EASY_VSF_OP(op, out_reg_index, out_reg_fields, class) \
+	MAKE_VSF_OP(R300_VPI_OUT_OP_##op, out_reg_index, VSF_FLAG_##out_reg_fields, VSF_OUT_CLASS_##class) \
+
+/* according to Nikolai, the subsequent 3 CARD32 are sources, use same define for each */
+
+#define VSF_IN_CLASS_TMP	0
+#define VSF_IN_CLASS_ATTR	1
+#define VSF_IN_CLASS_PARAM	2
+#define VSF_IN_CLASS_NONE	9
+
+#define VSF_IN_COMPONENT_X	0
+#define VSF_IN_COMPONENT_Y	1
+#define VSF_IN_COMPONENT_Z	2
+#define VSF_IN_COMPONENT_W	3
+#define VSF_IN_COMPONENT_ZERO	4
+#define VSF_IN_COMPONENT_ONE	5
+
+#define MAKE_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
+	( ((in_reg_index)<<R300_VPI_IN_REG_INDEX_SHIFT) \
+	   | ((comp_x)<<R300_VPI_IN_X_SHIFT) \
+	   | ((comp_y)<<R300_VPI_IN_Y_SHIFT) \
+	   | ((comp_z)<<R300_VPI_IN_Z_SHIFT) \
+	   | ((comp_w)<<R300_VPI_IN_W_SHIFT) \
+	   | ((negate)<<25) | ((class)))
+	   
+#define EASY_VSF_SOURCE(in_reg_index, comp_x, comp_y, comp_z, comp_w, class, negate) \
+	MAKE_VSF_SOURCE(in_reg_index, \
+		VSF_IN_COMPONENT_##comp_x, \
+		VSF_IN_COMPONENT_##comp_y, \
+		VSF_IN_COMPONENT_##comp_z, \
+		VSF_IN_COMPONENT_##comp_w, \
+		VSF_IN_CLASS_##class, VSF_FLAG_##negate)
+
+/* special sources: */
+
+/* (1.0,1.0,1.0,1.0) vector (ATTR, plain ) */
+#define VSF_ATTR_UNITY(reg) 	EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, ATTR, NONE)  
+#define VSF_UNITY(reg) 	EASY_VSF_SOURCE(reg, ONE, ONE, ONE, ONE, NONE, NONE)  
+
+/* contents of unmodified register */
+#define VSF_REG(reg) 	EASY_VSF_SOURCE(reg, X, Y, Z, W, ATTR, NONE)
+
+/* contents of unmodified parameter */
+#define VSF_PARAM(reg) 	EASY_VSF_SOURCE(reg, X, Y, Z, W, PARAM, NONE)
+
+/* contents of unmodified temporary register */
+#define VSF_TMP(reg) 	EASY_VSF_SOURCE(reg, X, Y, Z, W, TMP, NONE)
+
+/* components of ATTR register */
+#define VSF_ATTR_X(reg) EASY_VSF_SOURCE(reg, X, X, X, X, ATTR, NONE)
+#define VSF_ATTR_Y(reg) EASY_VSF_SOURCE(reg, Y, Y, Y, Y, ATTR, NONE)
+#define VSF_ATTR_Z(reg) EASY_VSF_SOURCE(reg, Z, Z, Z, Z, ATTR, NONE)
+#define VSF_ATTR_W(reg) EASY_VSF_SOURCE(reg, W, W, W, W, ATTR, NONE)
+
+#endif