r300: Remove all Mesa dependencies from the shader compiler

In particular, this removes the dependency on prog_instruction, which
unfortunately creates some code duplication, but also opens a path towards
adding some hardware-specific things in there.

Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>

1 files changed, 202 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.h b/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.h
new file mode 100644
index 0000000000..4eb9be3e55
--- /dev/null
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_opcodes.h
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2009 Nicolai Haehnle.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef RADEON_OPCODES_H
+#define RADEON_OPCODES_H
+
+#include <assert.h>
+
+/**
+ * Opcodes understood by the Radeon compiler.
+ */
+typedef enum {
+	RC_OPCODE_NOP = 0,
+	RC_OPCODE_ILLEGAL_OPCODE,
+
+	/** vec4 instruction: dst.c = abs(src0.c); */
+	RC_OPCODE_ABS,
+
+	/** vec4 instruction: dst.c = src0.c + src1.c; */
+	RC_OPCODE_ADD,
+
+	/** special instruction: load address register
+	 * dst.x = floor(src.x), where dst must be an address register */
+	RC_OPCODE_ARL,
+
+	/** vec4 instruction: dst.c = src0.c < 0.0 ? src1.c : src2.c */
+	RC_OPCODE_CMP,
+
+	/** scalar instruction: dst = cos(src0.x) */
+	RC_OPCODE_COS,
+
+	/** special instruction: take vec4 partial derivative in X direction
+	 * dst.c = d src0.c / dx */
+	RC_OPCODE_DDX,
+
+	/** special instruction: take vec4 partial derivative in Y direction
+	 * dst.c = d src0.c / dy */
+	RC_OPCODE_DDY,
+
+	/** scalar instruction: dst = src0.x*src1.x + src0.y*src1.y + src0.z*src1.z */
+	RC_OPCODE_DP3,
+
+	/** scalar instruction: dst = src0.x*src1.x + src0.y*src1.y + src0.z*src1.z + src0.w*src1.w */
+	RC_OPCODE_DP4,
+
+	/** scalar instruction: dst = src0.x*src1.x + src0.y*src1.y + src0.z*src1.z + src1.w */
+	RC_OPCODE_DPH,
+
+	/** special instruction, see ARB_fragment_program */
+	RC_OPCODE_DST,
+
+	/** scalar instruction: dst = 2**src0.x */
+	RC_OPCODE_EX2,
+
+	/** special instruction, see ARB_vertex_program */
+	RC_OPCODE_EXP,
+
+	/** vec4 instruction: dst.c = floor(src0.c) */
+	RC_OPCODE_FLR,
+
+	/** vec4 instruction: dst.c = src0.c - floor(src0.c) */
+	RC_OPCODE_FRC,
+
+	/** special instruction: stop execution if any component of src0 is negative */
+	RC_OPCODE_KIL,
+
+	/** scalar instruction: dst = log_2(src0.x) */
+	RC_OPCODE_LG2,
+
+	/** special instruction, see ARB_vertex_program */
+	RC_OPCODE_LIT,
+
+	/** special instruction, see ARB_vertex_program */
+	RC_OPCODE_LOG,
+
+	/** vec4 instruction: dst.c = src0.c*src1.c + (1 - src0.c)*src2.c */
+	RC_OPCODE_LRP,
+
+	/** vec4 instruction: dst.c = src0.c*src1.c + src2.c */
+	RC_OPCODE_MAD,
+
+	/** vec4 instruction: dst.c = max(src0.c, src1.c) */
+	RC_OPCODE_MAX,
+
+	/** vec4 instruction: dst.c = min(src0.c, src1.c) */
+	RC_OPCODE_MIN,
+
+	/** vec4 instruction: dst.c = src0.c */
+	RC_OPCODE_MOV,
+
+	/** vec4 instruction: dst.c = src0.c*src1.c */
+	RC_OPCODE_MUL,
+
+	/** scalar instruction: dst = src0.x ** src1.x */
+	RC_OPCODE_POW,
+
+	/** scalar instruction: dst = 1 / src0.x */
+	RC_OPCODE_RCP,
+
+	/** scalar instruction: dst = 1 / sqrt(src0.x) */
+	RC_OPCODE_RSQ,
+
+	/** special instruction, see ARB_fragment_program */
+	RC_OPCODE_SCS,
+
+	/** vec4 instruction: dst.c = (src0.c == src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SEQ,
+
+	/** vec4 instruction: dst.c = 0.0 */
+	RC_OPCODE_SFL,
+
+	/** vec4 instruction: dst.c = (src0.c >= src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SGE,
+
+	/** vec4 instruction: dst.c = (src0.c > src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SGT,
+
+	/** scalar instruction: dst = sin(src0.x) */
+	RC_OPCODE_SIN,
+
+	/** vec4 instruction: dst.c = (src0.c <= src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SLE,
+
+	/** vec4 instruction: dst.c = (src0.c < src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SLT,
+
+	/** vec4 instruction: dst.c = (src0.c != src1.c) ? 1.0 : 0.0 */
+	RC_OPCODE_SNE,
+
+	/** vec4 instruction: dst.c = src0.c - src1.c */
+	RC_OPCODE_SUB,
+
+	/** vec4 instruction: dst.c = src0.c */
+	RC_OPCODE_SWZ,
+
+	/** special instruction, see ARB_fragment_program */
+	RC_OPCODE_XPD,
+
+	RC_OPCODE_TEX,
+	RC_OPCODE_TXB,
+	RC_OPCODE_TXD,
+	RC_OPCODE_TXL,
+	RC_OPCODE_TXP,
+
+	/** special instruction, used in R300-R500 fragment program pair instructions
+	 * indicates that the result of the alpha operation shall be replicated
+	 * across all other channels */
+	RC_OPCODE_REPL_ALPHA,
+
+	MAX_RC_OPCODE
+} rc_opcode;
+
+
+struct rc_opcode_info {
+	rc_opcode Opcode;
+	const char * Name;
+
+	/** true if the instruction reads from a texture.
+	 *
+	 * \note This is false for the KIL instruction, even though KIL is
+	 * a texture instruction from a hardware point of view. */
+	unsigned int HasTexture:1;
+
+	unsigned int NumSrcRegs:2;
+	unsigned int HasDstReg:1;
+};
+
+extern struct rc_opcode_info rc_opcodes[MAX_RC_OPCODE];
+
+static inline const struct rc_opcode_info * rc_get_opcode_info(rc_opcode opcode)
+{
+	assert((unsigned int)opcode < MAX_RC_OPCODE);
+	assert(rc_opcodes[opcode].Opcode == opcode);
+
+	return &rc_opcodes[opcode];
+}
+
+#endif /* RADEON_OPCODES_H */