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+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE, INC 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 TGSI_UREG_H
+#define TGSI_UREG_H
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_shader_tokens.h"
+
+struct ureg_program;
+
+/* Almost a tgsi_src_register, but we need to pull in the Absolute
+ * flag from the _ext token. Indirect flag always implies ADDR[0].
+ */
+struct ureg_src
+{
+ unsigned File : 4; /* TGSI_FILE_ */
+ unsigned SwizzleX : 2; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleY : 2; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleZ : 2; /* TGSI_SWIZZLE_ */
+ unsigned SwizzleW : 2; /* TGSI_SWIZZLE_ */
+ unsigned Pad : 1; /* BOOL */
+ unsigned Indirect : 1; /* BOOL */
+ unsigned Absolute : 1; /* BOOL */
+ int Index : 16; /* SINT */
+ unsigned Negate : 1; /* BOOL */
+};
+
+/* Very similar to a tgsi_dst_register, removing unsupported fields
+ * and adding a Saturate flag. It's easier to push saturate into the
+ * destination register than to try and create a _SAT varient of each
+ * instruction function.
+ */
+struct ureg_dst
+{
+ unsigned File : 4; /* TGSI_FILE_ */
+ unsigned WriteMask : 4; /* TGSI_WRITEMASK_ */
+ unsigned Indirect : 1; /* BOOL */
+ unsigned Saturate : 1; /* BOOL */
+ int Index : 16; /* SINT */
+ unsigned Pad1 : 5;
+ unsigned Pad2 : 1; /* BOOL */
+};
+
+struct pipe_context;
+
+struct ureg_program *
+ureg_create( struct pipe_context *pipe,
+ unsigned processor );
+
+void *
+ureg_create_shader( struct ureg_program * );
+
+void
+ureg_destroy( struct ureg_program * );
+
+
+/***********************************************************************
+ * Convenience routine:
+ */
+static INLINE void *ureg_create_shader_and_destroy( struct ureg_program *p )
+{
+ void *result = ureg_create_shader( p );
+ ureg_destroy( p );
+ return result;
+}
+
+
+
+/***********************************************************************
+ * Build shader declarations:
+ */
+
+struct ureg_src
+ureg_DECL_fs_input( struct ureg_program *,
+ unsigned semantic_name,
+ unsigned semantic_index,
+ unsigned interp_mode );
+
+struct ureg_src
+ureg_DECL_vs_input( struct ureg_program *,
+ unsigned semantic_name,
+ unsigned semantic_index );
+
+struct ureg_dst
+ureg_DECL_output( struct ureg_program *,
+ unsigned semantic_name,
+ unsigned semantic_index );
+
+struct ureg_src
+ureg_DECL_immediate( struct ureg_program *,
+ const float *v,
+ unsigned nr );
+
+struct ureg_src
+ureg_DECL_constant( struct ureg_program * );
+
+struct ureg_dst
+ureg_DECL_temporary( struct ureg_program * );
+
+struct ureg_src
+ureg_DECL_sampler( struct ureg_program * );
+
+
+static INLINE struct ureg_src
+ureg_DECL_immediate4f( struct ureg_program *ureg,
+ float a, float b,
+ float c, float d)
+{
+ float v[4];
+ v[0] = a;
+ v[1] = b;
+ v[2] = c;
+ v[3] = d;
+ return ureg_DECL_immediate( ureg, v, 4 );
+}
+
+static INLINE struct ureg_src
+ureg_DECL_immediate3f( struct ureg_program *ureg,
+ float a, float b,
+ float c)
+{
+ float v[3];
+ v[0] = a;
+ v[1] = b;
+ v[2] = c;
+ return ureg_DECL_immediate( ureg, v, 3 );
+}
+
+static INLINE struct ureg_src
+ureg_DECL_immediate2f( struct ureg_program *ureg,
+ float a, float b)
+{
+ float v[2];
+ v[0] = a;
+ v[1] = b;
+ return ureg_DECL_immediate( ureg, v, 2 );
+}
+
+static INLINE struct ureg_src
+ureg_DECL_immediate1f( struct ureg_program *ureg,
+ float a)
+{
+ float v[1];
+ v[0] = a;
+ return ureg_DECL_immediate( ureg, v, 1 );
+}
+
+/***********************************************************************
+ * Internal instruction helpers, don't call these directly:
+ */
+
+unsigned
+ureg_emit_insn(struct ureg_program *ureg,
+ unsigned opcode,
+ boolean saturate,
+ unsigned num_dst,
+ unsigned num_src );
+
+void
+ureg_emit_label(struct ureg_program *ureg,
+ unsigned insn_token,
+ unsigned *label_token );
+
+void
+ureg_emit_texture(struct ureg_program *ureg,
+ unsigned insn_token,
+ unsigned target );
+
+void
+ureg_emit_dst( struct ureg_program *ureg,
+ struct ureg_dst dst );
+
+void
+ureg_emit_src( struct ureg_program *ureg,
+ struct ureg_src src );
+
+void
+ureg_fixup_insn_size(struct ureg_program *ureg,
+ unsigned insn );
+
+
+#define OP00( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, FALSE, 0, 0 ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP01( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_src src ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, FALSE, 0, 1 ); \
+ ureg_emit_src( ureg, src ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP00_LBL( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ unsigned *label_token ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, FALSE, 0, 0 ); \
+ ureg_emit_label( ureg, insn, label_token ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP01_LBL( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_src src, \
+ unsigned *label_token ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, FALSE, 0, 1 ); \
+ ureg_emit_label( ureg, insn, label_token ); \
+ ureg_emit_src( ureg, src ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP10( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 0 ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+
+#define OP11( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst, \
+ struct ureg_src src ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 1 ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_emit_src( ureg, src ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP12( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst, \
+ struct ureg_src src0, \
+ struct ureg_src src1 ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 2 ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_emit_src( ureg, src0 ); \
+ ureg_emit_src( ureg, src1 ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP12_TEX( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst, \
+ unsigned target, \
+ struct ureg_src src0, \
+ struct ureg_src src1 ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 2 ); \
+ ureg_emit_texture( ureg, insn, target ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_emit_src( ureg, src0 ); \
+ ureg_emit_src( ureg, src1 ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP13( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst, \
+ struct ureg_src src0, \
+ struct ureg_src src1, \
+ struct ureg_src src2 ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 3 ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_emit_src( ureg, src0 ); \
+ ureg_emit_src( ureg, src1 ); \
+ ureg_emit_src( ureg, src2 ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+#define OP14_TEX( op ) \
+static INLINE void ureg_##op( struct ureg_program *ureg, \
+ struct ureg_dst dst, \
+ unsigned target, \
+ struct ureg_src src0, \
+ struct ureg_src src1, \
+ struct ureg_src src2, \
+ struct ureg_src src3 ) \
+{ \
+ unsigned opcode = TGSI_OPCODE_##op; \
+ unsigned insn = ureg_emit_insn( ureg, opcode, dst.Saturate, 1, 4 ); \
+ ureg_emit_texture( ureg, insn, target ); \
+ ureg_emit_dst( ureg, dst ); \
+ ureg_emit_src( ureg, src0 ); \
+ ureg_emit_src( ureg, src1 ); \
+ ureg_emit_src( ureg, src2 ); \
+ ureg_emit_src( ureg, src3 ); \
+ ureg_fixup_insn_size( ureg, insn ); \
+}
+
+
+/* Use a template include to generate a correctly-typed ureg_OP()
+ * function for each TGSI opcode:
+ */
+#include "tgsi_opcode_tmp.h"
+
+
+/***********************************************************************
+ * Inline helpers for manipulating register structs:
+ */
+static INLINE struct ureg_src
+ureg_negate( struct ureg_src reg )
+{
+ reg.Negate ^= 1;
+ return reg;
+}
+
+static INLINE struct ureg_src
+ureg_abs( struct ureg_src reg )
+{
+ reg.Absolute = 1;
+ reg.Negate = 0;
+ return reg;
+}
+
+static INLINE struct ureg_src
+ureg_swizzle( struct ureg_src reg,
+ int x, int y, int z, int w )
+{
+ unsigned swz = ( (reg.SwizzleX << 0) |
+ (reg.SwizzleY << 2) |
+ (reg.SwizzleZ << 4) |
+ (reg.SwizzleW << 6));
+
+ reg.SwizzleX = (swz >> (x*2)) & 0x3;
+ reg.SwizzleY = (swz >> (y*2)) & 0x3;
+ reg.SwizzleZ = (swz >> (z*2)) & 0x3;
+ reg.SwizzleW = (swz >> (w*2)) & 0x3;
+ return reg;
+}
+
+static INLINE struct ureg_src
+ureg_scalar( struct ureg_src reg, int x )
+{
+ return ureg_swizzle(reg, x, x, x, x);
+}
+
+static INLINE struct ureg_dst
+ureg_writemask( struct ureg_dst reg,
+ unsigned writemask )
+{
+ reg.WriteMask &= writemask;
+ return reg;
+}
+
+static INLINE struct ureg_dst
+ureg_saturate( struct ureg_dst reg )
+{
+ reg.Saturate = 1;
+ return reg;
+}
+
+static INLINE struct ureg_dst
+ureg_from_src( struct ureg_src src )
+{
+ struct ureg_dst dst;
+
+ dst.File = src.File;
+ dst.WriteMask = TGSI_WRITEMASK_XYZW;
+ dst.Indirect = src.Indirect;
+ dst.Saturate = 0;
+ dst.Index = src.Index;
+ dst.Pad1 = 0;
+ dst.Pad2 = 0;
+
+ return dst;
+}
+
+static INLINE struct ureg_src
+ureg_from_dst( struct ureg_dst dst )
+{
+ struct ureg_src src;
+
+ src.File = dst.File;
+ src.SwizzleX = TGSI_SWIZZLE_X;
+ src.SwizzleY = TGSI_SWIZZLE_Y;
+ src.SwizzleZ = TGSI_SWIZZLE_Z;
+ src.SwizzleW = TGSI_SWIZZLE_W;
+ src.Pad = 0;
+ src.Indirect = dst.Indirect;
+ src.Absolute = 0;
+ src.Index = src.Index;
+ src.Negate = 0;
+
+ return src;
+}
+
+
+
+#endif
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