Subversion Repositories Kolibri OS

/**************************************************************************

 *

 * 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 *fmt, ...);

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);

extern void i915_update_program(struct gl_context *ctx);

#endif