r300g: copy the compiler from r300c

What a beast.

r300g doesn't depend on files from r300c anymore, so r300c is now left
to its own fate. BTW 'make test' can be invoked from the gallium/r300
directory to run some compiler unit tests.

1 files changed, 137 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/compiler/radeon_program_pair.h b/src/gallium/drivers/r300/compiler/radeon_program_pair.h
new file mode 100644
index 00000000000..a957ea9f7a0
--- /dev/null
+++ b/src/gallium/drivers/r300/compiler/radeon_program_pair.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2008 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_PROGRAM_PAIR_H_
+#define __RADEON_PROGRAM_PAIR_H_
+
+#include "radeon_code.h"
+#include "radeon_opcodes.h"
+#include "radeon_program_constants.h"
+
+struct radeon_compiler;
+
+
+/**
+ * \file
+ * Represents a paired ALU instruction, as found in R300 and R500
+ * fragment programs.
+ *
+ * Note that this representation is taking some liberties as far
+ * as register files are concerned, to allow separate register
+ * allocation.
+ *
+ * Also note that there are some subtleties in that the semantics
+ * of certain opcodes are implicitly changed in this representation;
+ * see \ref rc_pair_translate
+ */
+
+/* For rgb and alpha instructions when arg[n].Source = RC_PAIR_PRESUB_SRC, then
+ * the presubtract value will be used, and
+ * {RGB,Alpha}.Src[RC_PAIR_PRESUB_SRC].File will be set to RC_FILE_PRESUB.
+ */
+#define RC_PAIR_PRESUB_SRC 3
+
+struct rc_pair_instruction_source {
+	unsigned int Used:1;
+	unsigned int File:3;
+	unsigned int Index:RC_REGISTER_INDEX_BITS;
+};
+
+struct rc_pair_instruction_arg {
+	unsigned int Source:2;
+	unsigned int Swizzle:12;
+	unsigned int Abs:1;
+	unsigned int Negate:1;
+};
+
+struct rc_pair_sub_instruction {
+	unsigned int Opcode:8;
+	unsigned int DestIndex:RC_REGISTER_INDEX_BITS;
+	unsigned int WriteMask:4;
+	unsigned int Target:2;
+	unsigned int OutputWriteMask:3;
+	unsigned int DepthWriteMask:1;
+	unsigned int Saturate:1;
+
+	struct rc_pair_instruction_source Src[4];
+	struct rc_pair_instruction_arg Arg[3];
+};
+
+struct rc_pair_instruction {
+	struct rc_pair_sub_instruction RGB;
+	struct rc_pair_sub_instruction Alpha;
+
+	unsigned int WriteALUResult:2;
+	unsigned int ALUResultCompare:3;
+	unsigned int Nop:1;
+};
+
+typedef void (*rc_pair_foreach_src_fn)
+			(void *, struct rc_pair_instruction_source *);
+
+/**
+ * General helper functions for dealing with the paired instruction format.
+ */
+/*@{*/
+int rc_pair_alloc_source(struct rc_pair_instruction *pair,
+	unsigned int rgb, unsigned int alpha,
+	rc_register_file file, unsigned int index);
+
+void rc_pair_foreach_source_that_alpha_reads(
+	struct rc_pair_instruction * pair,
+	void * data,
+	rc_pair_foreach_src_fn cb);
+
+void rc_pair_foreach_source_that_rgb_reads(
+	struct rc_pair_instruction * pair,
+	void * data,
+	rc_pair_foreach_src_fn cb);
+
+struct rc_pair_instruction_source * rc_pair_get_src(
+	struct rc_pair_instruction * pair_inst,
+	struct rc_pair_instruction_arg * arg);
+
+int rc_pair_get_src_index(
+	struct rc_pair_instruction * pair_inst,
+	struct rc_pair_instruction_source * src);
+/*@}*/
+
+
+/**
+ * Compiler passes that operate with the paired format.
+ */
+/*@{*/
+struct radeon_pair_handler;
+
+void rc_pair_translate(struct radeon_compiler *cc, void *user);
+void rc_pair_schedule(struct radeon_compiler *cc, void *user);
+void rc_pair_regalloc(struct radeon_compiler *cc, void *user);
+void rc_pair_regalloc_inputs_only(struct radeon_compiler *cc, void *user);
+void rc_pair_remove_dead_sources(struct radeon_compiler *c, void *user);
+/*@}*/
+
+#endif /* __RADEON_PROGRAM_PAIR_H_ */