i915g: introduce the tiny shader optimizer.

1 files changed, 88 insertions, 0 deletions

diff --git a/src/gallium/drivers/i915/i915_fpc.h b/src/gallium/drivers/i915/i915_fpc.h
index 509395cf1f5..b760bc461a1 100644
--- a/src/gallium/drivers/i915/i915_fpc.h
+++ b/src/gallium/drivers/i915/i915_fpc.h
@@ -33,7 +33,9 @@
 #include "i915_context.h"
 #include "i915_reg.h"
 
+#include "pipe/p_shader_tokens.h"
 
+#include "tgsi/tgsi_parse.h"
 
 #define I915_PROGRAM_SIZE 192
 
@@ -207,4 +209,90 @@ extern void
 i915_program_error(struct i915_fp_compile *p, const char *msg, ...);
 
 
+/*======================================================================
+ * i915_fpc_optimize.c
+ */
+
+
+struct i915_src_register
+{
+   unsigned File        : 4;  /* TGSI_FILE_ */
+   unsigned Indirect    : 1;  /* BOOL */
+   unsigned Dimension   : 1;  /* BOOL */
+   int      Index       : 16; /* SINT */
+   unsigned SwizzleX    : 3;  /* TGSI_SWIZZLE_ */
+   unsigned SwizzleY    : 3;  /* TGSI_SWIZZLE_ */
+   unsigned SwizzleZ    : 3;  /* TGSI_SWIZZLE_ */
+   unsigned SwizzleW    : 3;  /* TGSI_SWIZZLE_ */
+   unsigned Absolute    : 1;    /* BOOL */
+   unsigned Negate      : 1;    /* BOOL */
+};
+
+/* Additional swizzle supported in i915 */
+#define TGSI_SWIZZLE_ZERO 4
+#define TGSI_SWIZZLE_ONE 5
+
+struct i915_dst_register
+{
+   unsigned File        : 4;  /* TGSI_FILE_ */
+   unsigned WriteMask   : 4;  /* TGSI_WRITEMASK_ */
+   unsigned Indirect    : 1;  /* BOOL */
+   unsigned Dimension   : 1;  /* BOOL */
+   int      Index       : 16; /* SINT */
+   unsigned Padding     : 6;
+};
+
+
+struct i915_full_dst_register
+{
+   struct i915_dst_register               Register;
+/*
+   struct tgsi_src_register               Indirect;
+   struct tgsi_dimension                  Dimension;
+   struct tgsi_src_register               DimIndirect;
+*/
+};
+
+struct i915_full_src_register
+{
+   struct i915_src_register         Register;
+/*
+   struct tgsi_src_register         Indirect;
+   struct tgsi_dimension            Dimension;
+   struct tgsi_src_register         DimIndirect;
+*/
+};
+
+struct i915_full_instruction
+{
+   struct tgsi_instruction             Instruction;
+/*
+   struct tgsi_instruction_predicate   Predicate;
+   struct tgsi_instruction_label       Label;
+*/
+   struct tgsi_instruction_texture     Texture;
+   struct i915_full_dst_register       Dst[1];
+   struct i915_full_src_register       Src[3];
+};
+
+
+union i915_full_token
+{
+   struct tgsi_token             Token;
+   struct tgsi_full_declaration  FullDeclaration;
+   struct tgsi_full_immediate    FullImmediate;
+   struct i915_full_instruction  FullInstruction;
+   struct tgsi_full_property     FullProperty;
+};
+
+struct i915_token_list
+{
+   union i915_full_token*     Tokens;
+   unsigned                   NumTokens;
+};
+
+extern struct i915_token_list* i915_optimize(const struct tgsi_token *tokens);
+
+extern void i915_optimize_free(struct i915_token_list* tokens);
+
 #endif