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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( unsigned processor );
const struct tgsi_token *
ureg_finalize( struct ureg_program * );
void *
ureg_create_shader( struct ureg_program *,
struct pipe_context *pipe );
void
ureg_destroy( struct ureg_program * );
/***********************************************************************
* Convenience routine:
*/
static INLINE void *
ureg_create_shader_and_destroy( struct ureg_program *p,
struct pipe_context *pipe )
{
void *result = ureg_create_shader( p, pipe );
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 * );
void
ureg_release_temporary( struct ureg_program *ureg,
struct ureg_dst tmp );
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 );
}
/***********************************************************************
* Functions for patching up labels
*/
/* Will return a number which can be used in a label to point to the
* next instruction to be emitted.
*/
unsigned
ureg_get_instruction_number( struct ureg_program *ureg );
/* Patch a given label (expressed as a token number) to point to a
* given instruction (expressed as an instruction number).
*
* Labels are obtained from instruction emitters, eg ureg_CAL().
* Instruction numbers are obtained from ureg_get_instruction_number(),
* above.
*/
void
ureg_fixup_label(struct ureg_program *ureg,
unsigned label_token,
unsigned instruction_number );
/* Generic instruction emitter. Use if you need to pass the opcode as
* a parameter, rather than using the emit_OP() varients below.
*/
void
ureg_insn(struct ureg_program *ureg,
unsigned opcode,
const struct ureg_dst *dst,
unsigned nr_dst,
const struct ureg_src *src,
unsigned nr_src );
/***********************************************************************
* 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_dst( 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_src( 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 = dst.Index;
src.Negate = 0;
return src;
}
#endif
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