#ifndef __RADEON_PROGRAM_PAIR_H_
#define __RADEON_PROGRAM_PAIR_H_
-#include "radeon_program.h"
+#include "radeon_code.h"
+#include "radeon_opcodes.h"
+#include "radeon_program_constants.h"
struct radeon_compiler;
/**
- * Represents a paired instruction, as found in R300 and R500
+ * \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
*/
-struct radeon_pair_instruction_source {
- GLuint Index:8;
- GLuint Constant:1;
- GLuint Used:1;
-};
-struct radeon_pair_instruction_rgb {
- GLuint Opcode:8;
- GLuint DestIndex:8;
- GLuint WriteMask:3;
- GLuint OutputWriteMask:3;
- GLuint Saturate:1;
-
- struct radeon_pair_instruction_source Src[3];
-
- struct {
- GLuint Source:2;
- GLuint Swizzle:9;
- GLuint Abs:1;
- GLuint Negate:1;
- } Arg[3];
+/* 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 radeon_pair_instruction_alpha {
- GLuint Opcode:8;
- GLuint DestIndex:8;
- GLuint WriteMask:1;
- GLuint OutputWriteMask:1;
- GLuint DepthWriteMask:1;
- GLuint Saturate:1;
-
- struct radeon_pair_instruction_source Src[3];
-
- struct {
- GLuint Source:2;
- GLuint Swizzle:3;
- GLuint Abs:1;
- GLuint Negate:1;
- } Arg[3];
+struct rc_pair_instruction_arg {
+ unsigned int Source:2;
+ unsigned int Swizzle:12;
+ unsigned int Abs:1;
+ unsigned int Negate:1;
};
-struct radeon_pair_instruction {
- struct radeon_pair_instruction_rgb RGB;
- struct radeon_pair_instruction_alpha Alpha;
+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;
-enum {
- RADEON_OPCODE_TEX = 0,
- RADEON_OPCODE_TXB,
- RADEON_OPCODE_TXP,
- RADEON_OPCODE_KIL
+ unsigned int WriteALUResult:2;
+ unsigned int ALUResultCompare:3;
+ unsigned int Nop:1;
};
-struct radeon_pair_texture_instruction {
- GLuint Opcode:2; /**< one of RADEON_OPCODE_xxx */
+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);
- GLuint DestIndex:8;
- GLuint WriteMask:4;
+void rc_pair_foreach_source_that_rgb_reads(
+ struct rc_pair_instruction * pair,
+ void * data,
+ rc_pair_foreach_src_fn cb);
- GLuint TexSrcUnit:5;
- GLuint TexSrcTarget:3;
+struct rc_pair_instruction_source * rc_pair_get_src(
+ struct rc_pair_instruction * pair_inst,
+ struct rc_pair_instruction_arg * arg);
- GLuint SrcIndex:8;
- GLuint SrcSwizzle:12;
-};
+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 {
- /**
- * Write a paired instruction to the hardware.
- *
- * @return GL_FALSE on error.
- */
- GLboolean (*EmitPaired)(void*, struct radeon_pair_instruction*);
-
- /**
- * Write a texture instruction to the hardware.
- * Register indices have already been rewritten to the allocated
- * hardware register numbers.
- *
- * @return GL_FALSE on error.
- */
- GLboolean (*EmitTex)(void*, struct radeon_pair_texture_instruction*);
-
- /**
- * Called before a block of contiguous, independent texture
- * instructions is emitted.
- */
- GLboolean (*BeginTexBlock)(void*);
-
- GLuint MaxHwTemps;
-};
-
-void radeonPairProgram(
- struct radeon_compiler * compiler,
- const struct radeon_pair_handler*, void *userdata);
-
-void radeonPrintPairInstruction(struct radeon_pair_instruction *inst);
+/*@{*/
+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_ */
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