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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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 I915_PROGRAM_H
#define I915_PROGRAM_H
#include "i915_context.h"
#include "i915_reg.h"
/* Having zero and one in here makes the definition of swizzle a lot
* easier.
*/
#define UREG_TYPE_SHIFT 29
#define UREG_NR_SHIFT 24
#define UREG_CHANNEL_X_NEGATE_SHIFT 23
#define UREG_CHANNEL_X_SHIFT 20
#define UREG_CHANNEL_Y_NEGATE_SHIFT 19
#define UREG_CHANNEL_Y_SHIFT 16
#define UREG_CHANNEL_Z_NEGATE_SHIFT 15
#define UREG_CHANNEL_Z_SHIFT 12
#define UREG_CHANNEL_W_NEGATE_SHIFT 11
#define UREG_CHANNEL_W_SHIFT 8
#define UREG_CHANNEL_ZERO_NEGATE_MBZ 5
#define UREG_CHANNEL_ZERO_SHIFT 4
#define UREG_CHANNEL_ONE_NEGATE_MBZ 1
#define UREG_CHANNEL_ONE_SHIFT 0
#define UREG_BAD 0xffffffff /* not a valid ureg */
#define X SRC_X
#define Y SRC_Y
#define Z SRC_Z
#define W SRC_W
#define ZERO SRC_ZERO
#define ONE SRC_ONE
/* Construct a ureg:
*/
#define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) | \
((nr) << UREG_NR_SHIFT) | \
(X << UREG_CHANNEL_X_SHIFT) | \
(Y << UREG_CHANNEL_Y_SHIFT) | \
(Z << UREG_CHANNEL_Z_SHIFT) | \
(W << UREG_CHANNEL_W_SHIFT) | \
(ZERO << UREG_CHANNEL_ZERO_SHIFT) | \
(ONE << UREG_CHANNEL_ONE_SHIFT))
#define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20))
#define CHANNEL_SRC( src, channel ) (src>>(channel*4))
#define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)®_TYPE_MASK)
#define GET_UREG_NR(reg) (((reg)>>UREG_NR_SHIFT)®_NR_MASK)
#define UREG_XYZW_CHANNEL_MASK 0x00ffff00
/* One neat thing about the UREG representation:
*/
static INLINE int
swizzle(int reg, int x, int y, int z, int w)
{
return ((reg & ~UREG_XYZW_CHANNEL_MASK) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3));
}
/* Another neat thing about the UREG representation:
*/
static INLINE int
negate(int reg, int x, int y, int z, int w)
{
return reg ^ (((x & 1) << UREG_CHANNEL_X_NEGATE_SHIFT) |
((y & 1) << UREG_CHANNEL_Y_NEGATE_SHIFT) |
((z & 1) << UREG_CHANNEL_Z_NEGATE_SHIFT) |
((w & 1) << UREG_CHANNEL_W_NEGATE_SHIFT));
}
extern GLuint i915_get_temp(struct i915_fragment_program *p);
extern GLuint i915_get_utemp(struct i915_fragment_program *p);
extern void i915_release_utemps(struct i915_fragment_program *p);
extern GLuint i915_emit_texld(struct i915_fragment_program *p,
GLuint live_regs,
GLuint dest,
GLuint destmask,
GLuint sampler, GLuint coord, GLuint op);
extern GLuint i915_emit_arith(struct i915_fragment_program *p,
GLuint op,
GLuint dest,
GLuint mask,
GLuint saturate,
GLuint src0, GLuint src1, GLuint src2);
extern GLuint i915_emit_decl(struct i915_fragment_program *p,
GLuint type, GLuint nr, GLuint d0_flags);
extern GLuint i915_emit_const1f(struct i915_fragment_program *p, GLfloat c0);
extern GLuint i915_emit_const2f(struct i915_fragment_program *p,
GLfloat c0, GLfloat c1);
extern GLuint i915_emit_const4fv(struct i915_fragment_program *p,
const GLfloat * c);
extern GLuint i915_emit_const4f(struct i915_fragment_program *p,
GLfloat c0, GLfloat c1,
GLfloat c2, GLfloat c3);
extern GLuint i915_emit_param4fv(struct i915_fragment_program *p,
const GLfloat * values);
extern void i915_program_error(struct i915_fragment_program *p,
const char *msg);
extern void i915_init_program(struct i915_context *i915,
struct i915_fragment_program *p);
extern void i915_upload_program(struct i915_context *i915,
struct i915_fragment_program *p);
extern void i915_fini_program(struct i915_fragment_program *p);
#endif
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